./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/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 df3ddc93bc6339292c9158119f1fdb949bb8842d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 07:08:49,485 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:08:49,487 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:08:49,495 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:08:49,495 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:08:49,496 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:08:49,497 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:08:49,498 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:08:49,499 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:08:49,500 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:08:49,501 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:08:49,501 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:08:49,501 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:08:49,502 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:08:49,503 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:08:49,503 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:08:49,504 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:08:49,505 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:08:49,506 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:08:49,507 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:08:49,508 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:08:49,509 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:08:49,511 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:08:49,511 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:08:49,511 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:08:49,512 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:08:49,512 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:08:49,513 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:08:49,513 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:08:49,514 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:08:49,514 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:08:49,515 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:08:49,515 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:08:49,515 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:08:49,516 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:08:49,516 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:08:49,517 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-10 07:08:49,527 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:08:49,527 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:08:49,528 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:08:49,528 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:08:49,528 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 07:08:49,529 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 07:08:49,529 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 07:08:49,529 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 07:08:49,529 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 07:08:49,529 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 07:08:49,529 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 07:08:49,529 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:08:49,530 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 07:08:49,530 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:08:49,530 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:08:49,530 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 07:08:49,530 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 07:08:49,530 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 07:08:49,530 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:08:49,531 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 07:08:49,531 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 07:08:49,531 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:08:49,531 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:08:49,531 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 07:08:49,531 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:08:49,531 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 07:08:49,532 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 07:08:49,532 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 07:08:49,533 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_af76f644-9c52-4ed4-aa48-9028ded4cf49/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 -> df3ddc93bc6339292c9158119f1fdb949bb8842d [2018-11-10 07:08:49,557 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:08:49,566 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:08:49,568 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:08:49,570 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:08:49,570 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:08:49,570 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a_true-termination_true-no-overflow.c [2018-11-10 07:08:49,610 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/bin-2019/uautomizer/data/264be300e/6852b48571e8404f94496e8588287390/FLAGae95d05c9 [2018-11-10 07:08:50,008 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:08:50,008 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a_true-termination_true-no-overflow.c [2018-11-10 07:08:50,012 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/bin-2019/uautomizer/data/264be300e/6852b48571e8404f94496e8588287390/FLAGae95d05c9 [2018-11-10 07:08:50,020 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/bin-2019/uautomizer/data/264be300e/6852b48571e8404f94496e8588287390 [2018-11-10 07:08:50,022 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:08:50,023 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 07:08:50,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:08:50,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:08:50,027 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:08:50,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:08:50" (1/1) ... [2018-11-10 07:08:50,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@837b16e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:50, skipping insertion in model container [2018-11-10 07:08:50,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:08:50" (1/1) ... [2018-11-10 07:08:50,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:08:50,046 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:08:50,135 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:08:50,137 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:08:50,144 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:08:50,152 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:08:50,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:50 WrapperNode [2018-11-10 07:08:50,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:08:50,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 07:08:50,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 07:08:50,153 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 07:08:50,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:50" (1/1) ... [2018-11-10 07:08:50,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:50" (1/1) ... [2018-11-10 07:08:50,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 07:08:50,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:08:50,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:08:50,172 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:08:50,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:50" (1/1) ... [2018-11-10 07:08:50,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:50" (1/1) ... [2018-11-10 07:08:50,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:50" (1/1) ... [2018-11-10 07:08:50,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:50" (1/1) ... [2018-11-10 07:08:50,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:50" (1/1) ... [2018-11-10 07:08:50,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:50" (1/1) ... [2018-11-10 07:08:50,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:50" (1/1) ... [2018-11-10 07:08:50,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:08:50,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:08:50,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:08:50,183 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:08:50,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 07:08:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:08:50,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:08:50,348 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:08:50,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:08:50 BoogieIcfgContainer [2018-11-10 07:08:50,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:08:50,349 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 07:08:50,349 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 07:08:50,352 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 07:08:50,353 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 07:08:50,353 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 07:08:50" (1/3) ... [2018-11-10 07:08:50,354 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f9b5259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 07:08:50, skipping insertion in model container [2018-11-10 07:08:50,354 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 07:08:50,354 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:08:50" (2/3) ... [2018-11-10 07:08:50,354 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f9b5259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 07:08:50, skipping insertion in model container [2018-11-10 07:08:50,354 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 07:08:50,354 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:08:50" (3/3) ... [2018-11-10 07:08:50,356 INFO L375 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig8a_true-termination_true-no-overflow.c [2018-11-10 07:08:50,394 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:08:50,395 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 07:08:50,395 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 07:08:50,395 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 07:08:50,395 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:08:50,395 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:08:50,395 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 07:08:50,395 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:08:50,395 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 07:08:50,405 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-11-10 07:08:50,419 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 07:08:50,419 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 07:08:50,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 07:08:50,424 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 07:08:50,424 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 07:08:50,424 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 07:08:50,424 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-11-10 07:08:50,425 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 07:08:50,425 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 07:08:50,425 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 07:08:50,425 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 07:08:50,425 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 07:08:50,430 INFO L793 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_~x~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 4#L17-2true [2018-11-10 07:08:50,430 INFO L795 eck$LassoCheckResult]: Loop: 4#L17-2true assume true; 5#L16-1true assume !!(main_~x~0 != 0); 7#L17true assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 + 1; 4#L17-2true [2018-11-10 07:08:50,434 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:08:50,434 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-10 07:08:50,435 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:08:50,436 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:08:50,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:50,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:08:50,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:50,493 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:08:50,493 INFO L82 PathProgramCache]: Analyzing trace with hash 35946, now seen corresponding path program 1 times [2018-11-10 07:08:50,493 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:08:50,493 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:08:50,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:50,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:08:50,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:50,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:50,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:08:50,503 INFO L82 PathProgramCache]: Analyzing trace with hash 28694888, now seen corresponding path program 1 times [2018-11-10 07:08:50,503 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:08:50,503 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:08:50,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:50,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:08:50,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:50,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:50,585 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 07:08:50,586 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 07:08:50,586 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 07:08:50,586 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 07:08:50,586 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 07:08:50,586 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 07:08:50,586 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 07:08:50,587 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 07:08:50,587 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-10 07:08:50,587 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 07:08:50,587 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 07:08:50,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:08:50,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:08:50,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:08:50,686 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 07:08:50,687 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 07:08:50,691 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 07:08:50,691 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 07:08:50,710 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 07:08:50,710 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 07:08:50,713 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 07:08:50,713 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 07:08:50,729 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 07:08:50,729 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 07:08:50,732 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 07:08:50,733 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 07:08:50,751 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 07:08:50,751 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 07:08:50,779 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 07:08:50,780 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 07:08:50,780 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 07:08:50,780 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 07:08:50,780 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 07:08:50,780 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 07:08:50,780 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 07:08:50,780 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 07:08:50,780 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 07:08:50,781 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-10 07:08:50,781 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 07:08:50,781 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 07:08:50,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:08:50,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:08:50,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:08:50,853 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 07:08:50,856 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 07:08:50,857 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 07:08:50,859 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 07:08:50,859 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 07:08:50,859 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 07:08:50,859 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 07:08:50,862 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 07:08:50,862 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 07:08:50,870 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 07:08:50,871 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 07:08:50,871 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 07:08:50,872 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 07:08:50,872 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 07:08:50,872 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 07:08:50,874 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 07:08:50,874 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 07:08:50,881 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 07:08:50,882 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 07:08:50,882 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 07:08:50,882 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 07:08:50,883 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 07:08:50,883 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 07:08:50,883 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 07:08:50,884 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 07:08:50,884 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 07:08:50,888 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 07:08:50,890 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 07:08:50,891 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 07:08:50,892 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 07:08:50,892 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 07:08:50,892 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 07:08:50,893 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-10 07:08:50,894 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 07:08:50,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:08:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:08:50,928 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:08:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:08:50,935 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:08:50,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:08:50,945 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-10 07:08:50,946 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 3 states. [2018-11-10 07:08:50,974 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states.. Second operand 3 states. Result 27 states and 32 transitions. Complement of second has 6 states. [2018-11-10 07:08:50,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-10 07:08:50,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 07:08:50,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2018-11-10 07:08:50,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 2 letters. Loop has 3 letters. [2018-11-10 07:08:50,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 07:08:50,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-10 07:08:50,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 07:08:50,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 2 letters. Loop has 6 letters. [2018-11-10 07:08:50,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 07:08:50,979 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 32 transitions. [2018-11-10 07:08:50,980 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 07:08:50,983 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 11 states and 14 transitions. [2018-11-10 07:08:50,983 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-10 07:08:50,984 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-11-10 07:08:50,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2018-11-10 07:08:50,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 07:08:50,984 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-10 07:08:50,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2018-11-10 07:08:50,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-10 07:08:50,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-10 07:08:51,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2018-11-10 07:08:51,000 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-10 07:08:51,001 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-10 07:08:51,001 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 07:08:51,001 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2018-11-10 07:08:51,001 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 07:08:51,001 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 07:08:51,001 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 07:08:51,002 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-10 07:08:51,002 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 07:08:51,002 INFO L793 eck$LassoCheckResult]: Stem: 84#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 79#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_~x~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 80#L17-2 assume true; 75#L16-1 assume !!(main_~x~0 != 0); 76#L17 assume main_~x~0 > 0;main_~x~0 := main_~x~0 - 1; 81#L17-2 [2018-11-10 07:08:51,002 INFO L795 eck$LassoCheckResult]: Loop: 81#L17-2 assume true; 82#L16-1 assume !!(main_~x~0 != 0); 85#L17 assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 + 1; 81#L17-2 [2018-11-10 07:08:51,002 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:08:51,002 INFO L82 PathProgramCache]: Analyzing trace with hash 28694886, now seen corresponding path program 1 times [2018-11-10 07:08:51,002 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:08:51,002 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:08:51,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:51,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:08:51,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:51,006 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:08:51,006 INFO L82 PathProgramCache]: Analyzing trace with hash 35946, now seen corresponding path program 2 times [2018-11-10 07:08:51,007 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:08:51,007 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:08:51,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:51,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:08:51,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:51,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:51,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:51,011 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:08:51,011 INFO L82 PathProgramCache]: Analyzing trace with hash 150863077, now seen corresponding path program 1 times [2018-11-10 07:08:51,011 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:08:51,011 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:08:51,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:51,012 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 07:08:51,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:08:51,056 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:08:51,057 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:08:51,057 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 07:08:51,070 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 07:08:51,071 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 07:08:51,071 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 07:08:51,071 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 07:08:51,071 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 07:08:51,071 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 07:08:51,071 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 07:08:51,071 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 07:08:51,071 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-10 07:08:51,071 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 07:08:51,071 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 07:08:51,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:08:51,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:08:51,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:08:51,113 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 07:08:51,114 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 07:08:51,115 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 07:08:51,115 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 07:08:51,141 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 07:08:51,141 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 07:08:51,143 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 07:08:51,143 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 07:08:51,160 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 07:08:51,160 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 07:08:51,165 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 07:08:51,165 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 07:08:51,182 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 07:08:51,182 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 07:08:51,199 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 07:08:51,200 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 07:08:51,200 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 07:08:51,200 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 07:08:51,201 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 07:08:51,201 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 07:08:51,201 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 07:08:51,201 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 07:08:51,201 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 07:08:51,201 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-10 07:08:51,201 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 07:08:51,201 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 07:08:51,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:08:51,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:08:51,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:08:51,266 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 07:08:51,266 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 07:08:51,266 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 07:08:51,267 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 07:08:51,267 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 07:08:51,267 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 07:08:51,267 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 07:08:51,268 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 07:08:51,268 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 07:08:51,271 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 07:08:51,271 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 07:08:51,272 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 07:08:51,272 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 07:08:51,272 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 07:08:51,272 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 07:08:51,272 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 07:08:51,273 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 07:08:51,273 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 07:08:51,275 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 07:08:51,277 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 07:08:51,277 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 07:08:51,278 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 07:08:51,278 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 07:08:51,278 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 07:08:51,278 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-10 07:08:51,279 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 07:08:51,291 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:08:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:08:51,294 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:08:51,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:08:51,297 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:08:51,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:08:51,298 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-10 07:08:51,298 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-10 07:08:51,306 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 17 states and 22 transitions. Complement of second has 5 states. [2018-11-10 07:08:51,306 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 [2018-11-10 07:08:51,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 07:08:51,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-10 07:08:51,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-10 07:08:51,307 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 07:08:51,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 3 letters. [2018-11-10 07:08:51,307 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 07:08:51,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 6 letters. [2018-11-10 07:08:51,307 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 07:08:51,307 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2018-11-10 07:08:51,308 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 07:08:51,309 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 22 transitions. [2018-11-10 07:08:51,309 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-10 07:08:51,309 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-10 07:08:51,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2018-11-10 07:08:51,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 07:08:51,309 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2018-11-10 07:08:51,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2018-11-10 07:08:51,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-10 07:08:51,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-10 07:08:51,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2018-11-10 07:08:51,311 INFO L728 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2018-11-10 07:08:51,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 07:08:51,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 07:08:51,314 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. Second operand 4 states. [2018-11-10 07:08:51,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:08:51,326 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2018-11-10 07:08:51,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 07:08:51,326 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 18 transitions. [2018-11-10 07:08:51,327 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 07:08:51,327 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 16 transitions. [2018-11-10 07:08:51,328 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2018-11-10 07:08:51,328 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-10 07:08:51,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 16 transitions. [2018-11-10 07:08:51,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 07:08:51,328 INFO L705 BuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2018-11-10 07:08:51,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 16 transitions. [2018-11-10 07:08:51,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 9. [2018-11-10 07:08:51,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-11-10 07:08:51,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2018-11-10 07:08:51,329 INFO L728 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-11-10 07:08:51,329 INFO L608 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-11-10 07:08:51,329 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-10 07:08:51,330 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2018-11-10 07:08:51,330 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 07:08:51,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 07:08:51,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 07:08:51,330 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-10 07:08:51,330 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 07:08:51,330 INFO L793 eck$LassoCheckResult]: Stem: 190#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 182#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_~x~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 183#L17-2 assume true; 185#L16-1 [2018-11-10 07:08:51,331 INFO L795 eck$LassoCheckResult]: Loop: 185#L16-1 assume !!(main_~x~0 != 0); 188#L17 assume main_~x~0 > 0;main_~x~0 := main_~x~0 - 1; 184#L17-2 assume true; 185#L16-1 [2018-11-10 07:08:51,331 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:08:51,331 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2018-11-10 07:08:51,331 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:08:51,331 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:08:51,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:51,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:08:51,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:51,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:08:51,334 INFO L82 PathProgramCache]: Analyzing trace with hash 41794, now seen corresponding path program 1 times [2018-11-10 07:08:51,334 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:08:51,334 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:08:51,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:51,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:08:51,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:51,337 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:08:51,337 INFO L82 PathProgramCache]: Analyzing trace with hash 889541472, now seen corresponding path program 2 times [2018-11-10 07:08:51,337 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:08:51,337 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:08:51,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:51,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:08:51,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:51,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:51,358 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 07:08:51,358 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 07:08:51,358 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 07:08:51,358 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 07:08:51,358 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 07:08:51,358 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 07:08:51,358 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 07:08:51,358 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 07:08:51,358 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-10 07:08:51,358 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 07:08:51,359 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 07:08:51,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:08:51,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:08:51,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:08:51,420 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 07:08:51,420 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 07:08:51,422 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 07:08:51,422 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 07:08:51,448 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 07:08:51,449 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 07:08:51,475 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 07:08:51,476 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 07:08:51,476 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 07:08:51,476 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 07:08:51,476 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 07:08:51,476 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 07:08:51,476 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 07:08:51,477 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 07:08:51,477 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 07:08:51,477 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-10 07:08:51,477 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 07:08:51,477 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 07:08:51,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:08:51,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:08:51,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:08:51,505 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 07:08:51,505 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 07:08:51,505 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 07:08:51,506 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 07:08:51,506 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 07:08:51,506 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 07:08:51,506 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 07:08:51,506 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 07:08:51,507 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 07:08:51,507 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 07:08:51,509 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 07:08:51,511 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 07:08:51,511 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 07:08:51,511 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 07:08:51,511 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 07:08:51,511 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 07:08:51,511 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-10 07:08:51,512 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 07:08:51,527 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:08:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:08:51,529 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:08:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:08:51,532 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:08:51,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:08:51,548 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 07:08:51,549 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand 4 states. [2018-11-10 07:08:51,561 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 19 states and 21 transitions. Complement of second has 5 states. [2018-11-10 07:08:51,562 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 [2018-11-10 07:08:51,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 07:08:51,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-11-10 07:08:51,562 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 3 letters. [2018-11-10 07:08:51,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 07:08:51,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-10 07:08:51,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 07:08:51,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 6 letters. [2018-11-10 07:08:51,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 07:08:51,563 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 21 transitions. [2018-11-10 07:08:51,564 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 07:08:51,564 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 11 states and 12 transitions. [2018-11-10 07:08:51,564 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-11-10 07:08:51,564 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-10 07:08:51,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 12 transitions. [2018-11-10 07:08:51,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 07:08:51,564 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2018-11-10 07:08:51,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 12 transitions. [2018-11-10 07:08:51,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2018-11-10 07:08:51,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-11-10 07:08:51,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2018-11-10 07:08:51,565 INFO L728 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-11-10 07:08:51,565 INFO L608 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-11-10 07:08:51,565 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-10 07:08:51,565 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2018-11-10 07:08:51,565 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 07:08:51,566 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 07:08:51,566 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 07:08:51,566 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2018-11-10 07:08:51,566 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 07:08:51,566 INFO L793 eck$LassoCheckResult]: Stem: 256#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 255#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_~x~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 249#L17-2 assume true; 250#L16-1 assume !!(main_~x~0 != 0); 254#L17 assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 + 1; 251#L17-2 assume true; 252#L16-1 [2018-11-10 07:08:51,566 INFO L795 eck$LassoCheckResult]: Loop: 252#L16-1 assume !!(main_~x~0 != 0); 253#L17 assume main_~x~0 > 0;main_~x~0 := main_~x~0 - 1; 257#L17-2 assume true; 252#L16-1 [2018-11-10 07:08:51,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:08:51,567 INFO L82 PathProgramCache]: Analyzing trace with hash 889541534, now seen corresponding path program 2 times [2018-11-10 07:08:51,567 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:08:51,567 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:08:51,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:51,568 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 07:08:51,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:51,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:51,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:08:51,570 INFO L82 PathProgramCache]: Analyzing trace with hash 41794, now seen corresponding path program 2 times [2018-11-10 07:08:51,570 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:08:51,570 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:08:51,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:51,571 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 07:08:51,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:51,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:51,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:08:51,573 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:08:51,574 INFO L82 PathProgramCache]: Analyzing trace with hash 383635077, now seen corresponding path program 2 times [2018-11-10 07:08:51,574 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:08:51,574 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:08:51,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:51,575 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 07:08:51,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:08:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:08:51,594 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:08:51,594 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 07:08:51,595 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 07:08:51,602 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-10 07:08:51,606 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 07:08:51,606 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 07:08:51,607 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:08:51,612 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:08:51,627 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 07:08:51,627 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-11-10 07:08:51,653 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 07:08:51,653 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 07:08:51,653 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 07:08:51,653 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 07:08:51,653 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 07:08:51,653 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 07:08:51,653 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 07:08:51,653 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 07:08:51,653 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-10 07:08:51,653 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 07:08:51,653 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 07:08:51,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:08:51,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:08:51,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:08:51,688 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 07:08:51,689 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/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 [2018-11-10 07:08:51,694 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 07:08:51,694 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af76f644-9c52-4ed4-aa48-9028ded4cf49/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 [2018-11-10 07:08:51,712 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 07:08:51,712 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 07:08:51,728 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 07:08:51,729 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 07:08:51,729 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 07:08:51,729 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 07:08:51,729 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 07:08:51,730 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 07:08:51,730 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 07:08:51,730 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 07:08:51,730 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 07:08:51,730 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-10 07:08:51,730 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 07:08:51,730 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 07:08:51,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:08:51,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:08:51,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 07:08:51,765 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 07:08:51,766 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 07:08:51,766 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 07:08:51,767 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 07:08:51,767 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 07:08:51,767 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 07:08:51,767 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 07:08:51,767 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 07:08:51,767 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 07:08:51,767 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 07:08:51,770 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 07:08:51,772 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 07:08:51,772 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 07:08:51,772 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 07:08:51,773 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 07:08:51,773 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 07:08:51,773 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-10 07:08:51,773 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 07:08:51,782 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:08:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:08:51,785 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:08:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:08:51,788 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:08:51,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:08:51,795 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 07:08:51,796 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-11-10 07:08:51,801 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 12 states and 13 transitions. Complement of second has 5 states. [2018-11-10 07:08:51,802 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 [2018-11-10 07:08:51,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 07:08:51,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2018-11-10 07:08:51,802 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-10 07:08:51,802 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 07:08:51,802 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 07:08:51,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:08:51,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:08:51,817 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:08:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:08:51,820 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:08:51,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:08:51,827 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 [2018-11-10 07:08:51,827 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-11-10 07:08:51,831 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 12 states and 13 transitions. Complement of second has 5 states. [2018-11-10 07:08:51,831 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 [2018-11-10 07:08:51,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 07:08:51,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2018-11-10 07:08:51,831 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-10 07:08:51,831 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 07:08:51,832 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 07:08:51,838 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:08:51,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:08:51,841 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:08:51,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:08:51,843 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:08:51,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:08:51,851 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 [2018-11-10 07:08:51,851 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-11-10 07:08:51,856 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 14 states and 15 transitions. Complement of second has 6 states. [2018-11-10 07:08:51,857 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 [2018-11-10 07:08:51,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 07:08:51,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-10 07:08:51,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-10 07:08:51,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 07:08:51,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-10 07:08:51,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 07:08:51,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-10 07:08:51,859 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 07:08:51,859 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 15 transitions. [2018-11-10 07:08:51,859 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 07:08:51,860 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2018-11-10 07:08:51,860 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 07:08:51,860 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 07:08:51,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 07:08:51,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 07:08:51,860 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 07:08:51,860 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 07:08:51,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 07:08:51,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 07:08:51,861 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2018-11-10 07:08:51,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:08:51,861 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-10 07:08:51,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 07:08:51,861 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-10 07:08:51,861 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 07:08:51,861 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 07:08:51,861 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 07:08:51,861 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 07:08:51,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 07:08:51,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 07:08:51,861 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 07:08:51,861 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 07:08:51,861 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 07:08:51,861 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-10 07:08:51,862 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-10 07:08:51,862 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 07:08:51,862 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-10 07:08:51,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 07:08:51 BoogieIcfgContainer [2018-11-10 07:08:51,866 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 07:08:51,866 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:08:51,866 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:08:51,866 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:08:51,867 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:08:50" (3/4) ... [2018-11-10 07:08:51,869 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 07:08:51,869 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:08:51,870 INFO L168 Benchmark]: Toolchain (without parser) took 1847.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 963.4 MB in the beginning and 920.1 MB in the end (delta: 43.3 MB). Peak memory consumption was 194.3 MB. Max. memory is 11.5 GB. [2018-11-10 07:08:51,871 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:08:51,871 INFO L168 Benchmark]: CACSL2BoogieTranslator took 129.17 ms. Allocated memory is still 1.0 GB. Free memory was 963.4 MB in the beginning and 952.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:08:51,871 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.46 ms. Allocated memory is still 1.0 GB. Free memory is still 952.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:08:51,871 INFO L168 Benchmark]: Boogie Preprocessor took 10.98 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 947.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 07:08:51,872 INFO L168 Benchmark]: RCFGBuilder took 166.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -191.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-10 07:08:51,872 INFO L168 Benchmark]: BuchiAutomizer took 1516.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 920.1 MB in the end (delta: 218.6 MB). Peak memory consumption was 218.6 MB. Max. memory is 11.5 GB. [2018-11-10 07:08:51,873 INFO L168 Benchmark]: Witness Printer took 2.93 ms. Allocated memory is still 1.2 GB. Free memory is still 920.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:08:51,875 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 129.17 ms. Allocated memory is still 1.0 GB. Free memory was 963.4 MB in the beginning and 952.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.46 ms. Allocated memory is still 1.0 GB. Free memory is still 952.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.98 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 947.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 166.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -191.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1516.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 920.1 MB in the end (delta: 218.6 MB). Peak memory consumption was 218.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.93 ms. Allocated memory is still 1.2 GB. Free memory is still 920.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * x and consists of 4 locations. One deterministic module has affine ranking function -1 * x and consists of 3 locations. One deterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 37 SDtfs, 33 SDslu, 10 SDs, 0 SdLazy, 42 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax199 hnf98 lsp49 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq165 hnf94 smp84 dnf100 smp100 tf112 neg97 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...