./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/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 f9de9875f09e594325a645528f016ce12ac5c646 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 11:04:00,365 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:04:00,367 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:04:00,376 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:04:00,376 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:04:00,377 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:04:00,378 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:04:00,379 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:04:00,381 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:04:00,381 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:04:00,382 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:04:00,382 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:04:00,383 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:04:00,384 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:04:00,385 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:04:00,386 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:04:00,386 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:04:00,388 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:04:00,389 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:04:00,391 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:04:00,392 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:04:00,392 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:04:00,394 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:04:00,395 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:04:00,395 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:04:00,396 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:04:00,396 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:04:00,397 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:04:00,398 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:04:00,399 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:04:00,399 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:04:00,399 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:04:00,400 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:04:00,400 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:04:00,401 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:04:00,401 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:04:00,401 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 11:04:00,414 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:04:00,414 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:04:00,415 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:04:00,415 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:04:00,415 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:04:00,415 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 11:04:00,416 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 11:04:00,416 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 11:04:00,416 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 11:04:00,416 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 11:04:00,416 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 11:04:00,416 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:04:00,416 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 11:04:00,416 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 11:04:00,417 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:04:00,417 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 11:04:00,417 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 11:04:00,417 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 11:04:00,417 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:04:00,417 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 11:04:00,417 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:04:00,417 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 11:04:00,418 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:04:00,418 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:04:00,418 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 11:04:00,418 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:04:00,418 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 11:04:00,418 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 11:04:00,419 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 11:04:00,419 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_948b8374-4a83-4669-ad83-e6c280b2d982/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 -> f9de9875f09e594325a645528f016ce12ac5c646 [2018-11-28 11:04:00,445 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:04:00,454 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:04:00,457 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:04:00,458 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:04:00,459 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:04:00,459 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c [2018-11-28 11:04:00,508 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/data/271c43ba0/22271a81fdf74927a8705c458e8ae058/FLAG1f6f5c38f [2018-11-28 11:04:00,844 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:04:00,845 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c [2018-11-28 11:04:00,849 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/data/271c43ba0/22271a81fdf74927a8705c458e8ae058/FLAG1f6f5c38f [2018-11-28 11:04:00,859 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/data/271c43ba0/22271a81fdf74927a8705c458e8ae058 [2018-11-28 11:04:00,861 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:04:00,862 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:04:00,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:04:00,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:04:00,866 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:04:00,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:04:00" (1/1) ... [2018-11-28 11:04:00,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a39b0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:04:00, skipping insertion in model container [2018-11-28 11:04:00,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:04:00" (1/1) ... [2018-11-28 11:04:00,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:04:00,888 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:04:01,000 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:04:01,003 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:04:01,015 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:04:01,026 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:04:01,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:04:01 WrapperNode [2018-11-28 11:04:01,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:04:01,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:04:01,028 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:04:01,028 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:04:01,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:04:01" (1/1) ... [2018-11-28 11:04:01,043 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:04:01" (1/1) ... [2018-11-28 11:04:01,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:04:01,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:04:01,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:04:01,059 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:04:01,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:04:01" (1/1) ... [2018-11-28 11:04:01,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:04:01" (1/1) ... [2018-11-28 11:04:01,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:04:01" (1/1) ... [2018-11-28 11:04:01,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:04:01" (1/1) ... [2018-11-28 11:04:01,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:04:01" (1/1) ... [2018-11-28 11:04:01,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:04:01" (1/1) ... [2018-11-28 11:04:01,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:04:01" (1/1) ... [2018-11-28 11:04:01,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:04:01,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:04:01,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:04:01,122 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:04:01,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:04:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:01,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:04:01,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:04:01,310 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:04:01,310 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-28 11:04:01,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:04:01 BoogieIcfgContainer [2018-11-28 11:04:01,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:04:01,311 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 11:04:01,311 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 11:04:01,314 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 11:04:01,315 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 11:04:01,315 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:04:00" (1/3) ... [2018-11-28 11:04:01,316 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c9cb4a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:04:01, skipping insertion in model container [2018-11-28 11:04:01,317 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 11:04:01,317 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:04:01" (2/3) ... [2018-11-28 11:04:01,317 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c9cb4a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:04:01, skipping insertion in model container [2018-11-28 11:04:01,317 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 11:04:01,318 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:04:01" (3/3) ... [2018-11-28 11:04:01,319 INFO L375 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c [2018-11-28 11:04:01,378 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:04:01,378 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 11:04:01,378 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 11:04:01,378 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 11:04:01,379 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:04:01,379 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:04:01,379 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 11:04:01,379 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:04:01,379 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 11:04:01,389 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-11-28 11:04:01,407 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 11:04:01,408 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:04:01,408 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:04:01,414 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 11:04:01,414 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 11:04:01,414 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 11:04:01,414 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-11-28 11:04:01,415 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 11:04:01,415 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:04:01,415 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:04:01,415 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 11:04:01,416 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 11:04:01,421 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 7#L21-2true [2018-11-28 11:04:01,421 INFO L796 eck$LassoCheckResult]: Loop: 7#L21-2true assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 3#L21true assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 7#L21-2true [2018-11-28 11:04:01,425 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:01,425 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 11:04:01,427 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:04:01,427 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:04:01,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:01,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:04:01,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:01,504 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:01,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2018-11-28 11:04:01,504 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:04:01,504 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:04:01,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:01,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:04:01,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:01,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:01,516 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2018-11-28 11:04:01,517 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:04:01,517 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:04:01,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:01,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:04:01,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:01,592 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:04:01,593 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:04:01,593 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:04:01,593 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:04:01,593 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:04:01,593 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:01,593 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:04:01,593 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:04:01,593 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 11:04:01,593 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:04:01,594 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:04:01,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:01,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:01,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:01,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:01,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:01,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:01,745 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:04:01,745 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:01,749 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:04:01,750 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:04:01,772 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:04:01,772 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:01,777 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:04:01,777 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:04:01,805 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:04:01,805 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:01,809 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:04:01,809 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:01,842 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:04:01,842 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:04:01,861 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:04:01,862 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:04:01,862 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:04:01,862 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:04:01,862 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:04:01,863 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:04:01,863 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:01,863 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:04:01,863 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:04:01,863 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 11:04:01,863 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:04:01,863 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:04:01,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:01,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:01,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:01,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:01,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:01,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:01,955 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:04:01,958 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:04:01,959 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:04:01,960 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:04:01,961 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:04:01,961 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:04:01,961 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:04:01,964 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:04:01,964 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:04:01,972 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:04:01,972 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:04:01,973 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:04:01,973 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:04:01,973 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:04:01,973 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:04:01,976 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:04:01,976 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:04:01,983 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:04:01,984 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:04:01,984 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:04:01,984 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:04:01,985 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:04:01,985 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:04:01,985 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:04:01,985 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:04:01,987 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:04:01,992 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:04:01,995 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 11:04:01,996 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 11:04:01,997 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:04:01,998 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 11:04:01,998 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:04:01,999 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-28 11:04:02,000 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 11:04:02,034 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:02,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:04:02,042 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:04:02,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:04:02,049 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:04:02,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:04:02,071 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 11:04:02,072 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2018-11-28 11:04:02,108 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 23 states and 30 transitions. Complement of second has 8 states. [2018-11-28 11:04:02,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-28 11:04:02,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 11:04:02,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2018-11-28 11:04:02,111 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2018-11-28 11:04:02,111 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:04:02,111 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-28 11:04:02,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:04:02,112 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2018-11-28 11:04:02,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:04:02,113 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2018-11-28 11:04:02,115 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 11:04:02,118 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2018-11-28 11:04:02,119 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-28 11:04:02,119 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-28 11:04:02,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2018-11-28 11:04:02,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:04:02,120 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-28 11:04:02,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2018-11-28 11:04:02,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-11-28 11:04:02,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-28 11:04:02,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2018-11-28 11:04:02,140 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-28 11:04:02,140 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-28 11:04:02,140 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 11:04:02,140 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2018-11-28 11:04:02,140 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 11:04:02,140 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:04:02,140 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:04:02,141 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 11:04:02,141 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 11:04:02,141 INFO L794 eck$LassoCheckResult]: Stem: 71#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 72#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 67#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~y~0 := main_~y~0 - 1;main_~d~0 := main_~d~0 - 1; 68#L21-2 [2018-11-28 11:04:02,141 INFO L796 eck$LassoCheckResult]: Loop: 68#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 73#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 68#L21-2 [2018-11-28 11:04:02,141 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:02,141 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2018-11-28 11:04:02,141 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:04:02,141 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:04:02,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:02,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:04:02,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:02,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:02,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2018-11-28 11:04:02,153 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:04:02,153 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:04:02,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:02,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:04:02,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:02,159 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:02,159 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2018-11-28 11:04:02,159 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:04:02,159 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:04:02,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:02,161 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:04:02,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:02,207 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:04:02,207 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:04:02,207 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:04:02,208 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:04:02,208 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:04:02,208 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:02,208 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:04:02,208 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:04:02,208 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 11:04:02,208 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:04:02,208 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:04:02,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:02,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:02,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:02,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:02,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:02,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:02,267 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:04:02,267 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:02,269 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:04:02,269 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:04:02,286 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:04:02,286 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:02,290 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:04:02,290 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:04:02,294 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:04:02,294 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=4, ULTIMATE.start_main_~d~0=4} Honda state: {ULTIMATE.start_main_#t~nondet4=4, ULTIMATE.start_main_~d~0=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:02,309 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:04:02,309 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:04:02,312 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:04:02,312 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=7} Honda state: {ULTIMATE.start_main_#t~nondet3=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:02,335 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:04:02,335 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:02,352 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:04:02,352 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:04:02,383 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:04:02,384 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:04:02,384 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:04:02,384 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:04:02,384 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:04:02,384 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:04:02,385 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:02,385 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:04:02,385 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:04:02,385 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 11:04:02,385 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:04:02,385 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:04:02,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:02,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:02,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:02,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:02,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:02,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:02,463 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:04:02,463 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:04:02,463 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:04:02,464 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:04:02,464 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:04:02,464 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:04:02,464 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:04:02,466 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:04:02,466 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:04:02,469 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:04:02,470 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:04:02,470 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:04:02,470 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:04:02,471 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:04:02,471 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:04:02,471 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:04:02,471 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:04:02,472 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:04:02,476 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:04:02,477 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:04:02,480 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:04:02,480 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:04:02,480 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:04:02,480 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-28 11:04:02,481 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:04:02,481 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-28 11:04:02,482 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:04:02,485 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:04:02,485 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:04:02,488 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:04:02,488 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:04:02,488 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:04:02,488 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:04:02,489 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:04:02,489 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:04:02,489 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:04:02,493 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:04:02,495 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 11:04:02,496 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 11:04:02,496 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:04:02,496 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 11:04:02,497 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:04:02,497 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-28 11:04:02,498 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 11:04:02,548 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:04:02,557 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:04:02,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:04:02,565 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:04:02,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:04:02,582 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 11:04:02,582 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-28 11:04:02,602 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 11 states and 16 transitions. Complement of second has 5 states. [2018-11-28 11:04:02,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:04:02,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 11:04:02,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-11-28 11:04:02,603 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-28 11:04:02,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:04:02,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-28 11:04:02,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:04:02,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2018-11-28 11:04:02,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:04:02,605 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2018-11-28 11:04:02,607 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 11:04:02,608 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2018-11-28 11:04:02,608 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-11-28 11:04:02,608 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-28 11:04:02,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2018-11-28 11:04:02,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:04:02,608 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-11-28 11:04:02,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2018-11-28 11:04:02,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-28 11:04:02,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-28 11:04:02,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2018-11-28 11:04:02,610 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-11-28 11:04:02,610 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-11-28 11:04:02,610 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 11:04:02,610 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2018-11-28 11:04:02,611 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 11:04:02,611 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:04:02,611 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:04:02,612 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2018-11-28 11:04:02,612 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 11:04:02,612 INFO L794 eck$LassoCheckResult]: Stem: 125#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 126#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 121#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~y~0 := main_~y~0 - 1;main_~d~0 := main_~d~0 - 1; 122#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 129#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~y~0 := main_~y~0 - 1;main_~d~0 := main_~d~0 - 1; 127#L21-2 [2018-11-28 11:04:02,612 INFO L796 eck$LassoCheckResult]: Loop: 127#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 128#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 127#L21-2 [2018-11-28 11:04:02,612 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:02,612 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2018-11-28 11:04:02,613 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:04:02,613 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:04:02,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:02,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:04:02,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:02,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:02,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:02,626 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:02,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2018-11-28 11:04:02,626 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:04:02,627 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:04:02,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:02,628 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:04:02,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:02,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:02,633 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:02,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1364196307, now seen corresponding path program 2 times [2018-11-28 11:04:02,633 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:04:02,633 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:04:02,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:02,635 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:04:02,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:02,676 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:04:02,676 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:04:02,676 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:04:02,676 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:04:02,676 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:04:02,676 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:02,676 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:04:02,677 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:04:02,677 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 11:04:02,677 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:04:02,677 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:04:02,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:02,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:02,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:02,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:02,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:02,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:02,747 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:04:02,747 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:02,751 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:04:02,752 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:04:02,755 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:04:02,755 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=7} Honda state: {ULTIMATE.start_main_#t~nondet3=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:02,774 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:04:02,774 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:04:02,791 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:04:02,791 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:02,795 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:04:02,795 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:04:02,799 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:04:02,799 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=4, ULTIMATE.start_main_~d~0=4} Honda state: {ULTIMATE.start_main_#t~nondet4=4, ULTIMATE.start_main_~d~0=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:02,819 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:04:02,819 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:04:02,838 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:04:02,838 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:02,842 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:04:02,842 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:04:02,861 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:04:02,861 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:02,865 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:04:02,865 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:02,887 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:04:02,887 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:04:02,907 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:04:02,909 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:04:02,909 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:04:02,909 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:04:02,909 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:04:02,909 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:04:02,910 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:02,910 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:04:02,910 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:04:02,910 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 11:04:02,910 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:04:02,910 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:04:02,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:02,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:02,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:02,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:02,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:02,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:02,985 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:04:02,985 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:04:02,986 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:04:02,986 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:04:02,986 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:04:02,987 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:04:02,987 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-28 11:04:02,987 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:04:02,987 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-28 11:04:02,988 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:04:02,993 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:04:02,993 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:04:02,994 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:04:02,994 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:04:02,994 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:04:02,994 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:04:02,995 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:04:02,995 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:04:02,998 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:04:02,999 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:04:02,999 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:04:02,999 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:04:02,999 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:04:03,000 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:04:03,000 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:04:03,001 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:04:03,001 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:04:03,004 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:04:03,005 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:04:03,005 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:04:03,005 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:04:03,006 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:04:03,006 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:04:03,006 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:04:03,006 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:04:03,006 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:04:03,007 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:04:03,008 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:04:03,008 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:04:03,008 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:04:03,009 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:04:03,009 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:04:03,010 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:04:03,010 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:04:03,013 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:04:03,013 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:04:03,013 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:04:03,014 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:04:03,014 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:04:03,014 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:04:03,014 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:04:03,014 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:04:03,015 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:04:03,017 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:04:03,018 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 11:04:03,018 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 11:04:03,019 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:04:03,019 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 11:04:03,019 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:04:03,019 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-28 11:04:03,020 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 11:04:03,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:04:03,051 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:04:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:04:03,055 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:04:03,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:04:03,067 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 11:04:03,067 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-11-28 11:04:03,082 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2018-11-28 11:04:03,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:04:03,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 11:04:03,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-11-28 11:04:03,084 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-28 11:04:03,084 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:04:03,084 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 11:04:03,094 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:04:03,100 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:04:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:04:03,105 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:04:03,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:04:03,123 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 11:04:03,123 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-11-28 11:04:03,130 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2018-11-28 11:04:03,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:04:03,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 11:04:03,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-11-28 11:04:03,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-28 11:04:03,131 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:04:03,131 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 11:04:03,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:04:03,165 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:04:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:04:03,168 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:04:03,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:04:03,174 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 11:04:03,174 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-11-28 11:04:03,181 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 15 states and 23 transitions. Complement of second has 4 states. [2018-11-28 11:04:03,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:04:03,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 11:04:03,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-11-28 11:04:03,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-28 11:04:03,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:04:03,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-28 11:04:03,183 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:04:03,183 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-28 11:04:03,183 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:04:03,183 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2018-11-28 11:04:03,184 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 11:04:03,184 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2018-11-28 11:04:03,184 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-28 11:04:03,185 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-28 11:04:03,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2018-11-28 11:04:03,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:04:03,185 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2018-11-28 11:04:03,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2018-11-28 11:04:03,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2018-11-28 11:04:03,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-28 11:04:03,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2018-11-28 11:04:03,186 INFO L728 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2018-11-28 11:04:03,186 INFO L608 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2018-11-28 11:04:03,186 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 11:04:03,186 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2018-11-28 11:04:03,187 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 11:04:03,187 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:04:03,187 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:04:03,187 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 11:04:03,187 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 11:04:03,187 INFO L794 eck$LassoCheckResult]: Stem: 272#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 269#L21-2 [2018-11-28 11:04:03,187 INFO L796 eck$LassoCheckResult]: Loop: 269#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 268#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~y~0 := main_~y~0 - 1;main_~d~0 := main_~d~0 - 1; 269#L21-2 [2018-11-28 11:04:03,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:03,188 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2018-11-28 11:04:03,188 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:04:03,188 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:04:03,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:03,189 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:04:03,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:03,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:03,192 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:03,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1286, now seen corresponding path program 1 times [2018-11-28 11:04:03,192 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:04:03,192 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:04:03,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:03,193 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:04:03,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:03,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:03,197 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:03,197 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 3 times [2018-11-28 11:04:03,197 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:04:03,197 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:04:03,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:03,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:04:03,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:03,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:03,232 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:04:03,232 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:04:03,232 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:04:03,232 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:04:03,232 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:04:03,232 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:03,232 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:04:03,233 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:04:03,233 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-28 11:04:03,233 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:04:03,233 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:04:03,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,285 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:04:03,285 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:03,287 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:04:03,287 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:03,305 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:04:03,305 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:04:03,321 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:04:03,323 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:04:03,323 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:04:03,323 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:04:03,323 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:04:03,323 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:04:03,323 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:03,323 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:04:03,323 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:04:03,323 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-28 11:04:03,323 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:04:03,323 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:04:03,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,373 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:04:03,373 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:04:03,373 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:04:03,374 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:04:03,374 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:04:03,374 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:04:03,374 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:04:03,374 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:04:03,374 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:04:03,374 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:04:03,376 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:04:03,378 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 11:04:03,378 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 11:04:03,378 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:04:03,378 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 11:04:03,378 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:04:03,378 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0) = 1*ULTIMATE.start_main_~d~0 Supporting invariants [] [2018-11-28 11:04:03,379 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 11:04:03,386 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:04:03,388 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:04:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:04:03,391 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:04:03,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:04:03,396 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 11:04:03,396 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-11-28 11:04:03,407 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 11 states and 17 transitions. Complement of second has 5 states. [2018-11-28 11:04:03,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:04:03,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 11:04:03,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3 transitions. [2018-11-28 11:04:03,408 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 1 letters. Loop has 2 letters. [2018-11-28 11:04:03,408 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:04:03,408 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-28 11:04:03,409 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:04:03,409 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 1 letters. Loop has 4 letters. [2018-11-28 11:04:03,409 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:04:03,409 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2018-11-28 11:04:03,409 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 11:04:03,410 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 9 states and 13 transitions. [2018-11-28 11:04:03,410 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-28 11:04:03,410 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-28 11:04:03,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2018-11-28 11:04:03,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:04:03,410 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2018-11-28 11:04:03,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2018-11-28 11:04:03,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2018-11-28 11:04:03,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-28 11:04:03,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 12 transitions. [2018-11-28 11:04:03,411 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2018-11-28 11:04:03,411 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2018-11-28 11:04:03,411 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-28 11:04:03,411 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 12 transitions. [2018-11-28 11:04:03,412 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 11:04:03,412 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:04:03,412 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:04:03,413 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2018-11-28 11:04:03,413 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 11:04:03,414 INFO L794 eck$LassoCheckResult]: Stem: 318#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 319#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 320#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 321#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 314#L21 [2018-11-28 11:04:03,414 INFO L796 eck$LassoCheckResult]: Loop: 314#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~y~0 := main_~y~0 - 1;main_~d~0 := main_~d~0 - 1; 315#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 314#L21 [2018-11-28 11:04:03,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:03,414 INFO L82 PathProgramCache]: Analyzing trace with hash 963335, now seen corresponding path program 2 times [2018-11-28 11:04:03,414 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:04:03,414 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:04:03,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:03,415 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:04:03,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:03,421 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:03,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 2 times [2018-11-28 11:04:03,421 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:04:03,422 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:04:03,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:03,423 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:04:03,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:03,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:03,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:03,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:03,427 INFO L82 PathProgramCache]: Analyzing trace with hash 925765410, now seen corresponding path program 3 times [2018-11-28 11:04:03,427 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:04:03,427 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:04:03,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:03,428 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:04:03,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:03,462 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:04:03,462 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:04:03,462 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:04:03,462 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:04:03,462 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:04:03,462 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:03,462 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:04:03,462 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:04:03,462 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-28 11:04:03,462 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:04:03,463 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:04:03,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,521 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:04:03,521 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:03,523 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:04:03,523 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:03,544 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:04:03,544 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:04:03,605 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:04:03,607 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:04:03,607 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:04:03,607 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:04:03,607 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:04:03,607 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:04:03,607 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:03,607 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:04:03,607 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:04:03,607 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-28 11:04:03,607 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:04:03,607 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:04:03,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,676 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:04:03,676 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:04:03,677 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:04:03,677 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:04:03,677 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:04:03,678 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:04:03,678 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:04:03,679 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:04:03,679 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:04:03,681 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:04:03,681 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:04:03,681 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:04:03,681 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:04:03,682 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:04:03,682 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:04:03,682 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:04:03,682 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:04:03,682 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:04:03,684 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:04:03,687 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 11:04:03,687 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 11:04:03,688 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:04:03,688 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 11:04:03,688 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:04:03,688 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0) = 1*ULTIMATE.start_main_~d~0 Supporting invariants [] [2018-11-28 11:04:03,688 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 11:04:03,699 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:04:03,703 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:04:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:04:03,706 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:04:03,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:04:03,718 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 11:04:03,718 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-11-28 11:04:03,729 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 10 states and 14 transitions. Complement of second has 5 states. [2018-11-28 11:04:03,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:04:03,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 11:04:03,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2018-11-28 11:04:03,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-28 11:04:03,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:04:03,730 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 11:04:03,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:04:03,748 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:04:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:04:03,751 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:04:03,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:04:03,757 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 11:04:03,757 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-11-28 11:04:03,766 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 10 states and 14 transitions. Complement of second has 5 states. [2018-11-28 11:04:03,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:04:03,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 11:04:03,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2018-11-28 11:04:03,767 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-28 11:04:03,767 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:04:03,767 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 11:04:03,775 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:04:03,778 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:04:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:04:03,787 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:04:03,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:04:03,802 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 11:04:03,802 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-11-28 11:04:03,813 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 13 states and 19 transitions. Complement of second has 4 states. [2018-11-28 11:04:03,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 11:04:03,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 11:04:03,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-11-28 11:04:03,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-28 11:04:03,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:04:03,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-28 11:04:03,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:04:03,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-28 11:04:03,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:04:03,815 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 19 transitions. [2018-11-28 11:04:03,816 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-28 11:04:03,816 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 11 states and 16 transitions. [2018-11-28 11:04:03,816 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-11-28 11:04:03,817 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2018-11-28 11:04:03,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2018-11-28 11:04:03,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:04:03,817 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-11-28 11:04:03,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2018-11-28 11:04:03,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 7. [2018-11-28 11:04:03,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-28 11:04:03,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2018-11-28 11:04:03,819 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-28 11:04:03,819 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-28 11:04:03,819 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-28 11:04:03,819 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2018-11-28 11:04:03,819 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-28 11:04:03,820 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:04:03,820 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:04:03,820 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2018-11-28 11:04:03,820 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2018-11-28 11:04:03,820 INFO L794 eck$LassoCheckResult]: Stem: 445#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 446#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 443#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 444#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 441#L21 [2018-11-28 11:04:03,820 INFO L796 eck$LassoCheckResult]: Loop: 441#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~y~0 := main_~y~0 - 1;main_~d~0 := main_~d~0 - 1; 442#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 443#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 444#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 441#L21 [2018-11-28 11:04:03,820 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:03,821 INFO L82 PathProgramCache]: Analyzing trace with hash 963335, now seen corresponding path program 3 times [2018-11-28 11:04:03,821 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:04:03,821 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:04:03,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:03,822 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:04:03,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:03,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:03,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 1 times [2018-11-28 11:04:03,829 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:04:03,829 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:04:03,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:03,830 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:04:03,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:03,835 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:03,835 INFO L82 PathProgramCache]: Analyzing trace with hash 602329151, now seen corresponding path program 4 times [2018-11-28 11:04:03,835 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:04:03,835 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:04:03,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:03,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:04:03,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:04:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:03,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:04:03,893 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:04:03,893 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:04:03,893 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:04:03,893 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:04:03,893 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:04:03,893 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:03,893 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:04:03,893 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:04:03,894 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration6_Loop [2018-11-28 11:04:03,894 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:04:03,894 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:04:03,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:03,959 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:04:03,959 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:03,961 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:04:03,961 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_948b8374-4a83-4669-ad83-e6c280b2d982/bin-2019/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:03,981 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:04:03,981 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:04:04,027 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:04:04,028 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:04:04,028 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:04:04,028 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:04:04,028 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:04:04,028 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:04:04,028 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:04:04,028 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:04:04,029 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:04:04,029 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration6_Loop [2018-11-28 11:04:04,029 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:04:04,029 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:04:04,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:04,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:04,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:04,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:04,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:04,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:04:04,072 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:04:04,072 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:04:04,072 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:04:04,073 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:04:04,073 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:04:04,073 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:04:04,073 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:04:04,073 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:04:04,074 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:04:04,074 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:04:04,075 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:04:04,077 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 11:04:04,077 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 11:04:04,077 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:04:04,077 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 11:04:04,077 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:04:04,077 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-28 11:04:04,078 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 11:04:04,089 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:04:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:04:04,093 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:04:04,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:04:04,097 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:04:04,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:04:04,109 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-28 11:04:04,109 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 4 Second operand 4 states. [2018-11-28 11:04:04,122 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 20 states and 29 transitions. Complement of second has 6 states. [2018-11-28 11:04:04,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-28 11:04:04,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 11:04:04,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-11-28 11:04:04,124 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-28 11:04:04,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:04:04,124 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2018-11-28 11:04:04,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:04:04,124 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 8 letters. [2018-11-28 11:04:04,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:04:04,124 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 29 transitions. [2018-11-28 11:04:04,125 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 11:04:04,125 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2018-11-28 11:04:04,125 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 11:04:04,125 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 11:04:04,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 11:04:04,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 11:04:04,125 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:04:04,125 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:04:04,126 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:04:04,126 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-28 11:04:04,126 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 11:04:04,126 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 11:04:04,126 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 11:04:04,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:04:04 BoogieIcfgContainer [2018-11-28 11:04:04,131 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 11:04:04,131 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:04:04,131 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:04:04,132 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:04:04,132 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:04:01" (3/4) ... [2018-11-28 11:04:04,134 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 11:04:04,135 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:04:04,135 INFO L168 Benchmark]: Toolchain (without parser) took 3273.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 953.3 MB in the beginning and 911.0 MB in the end (delta: 42.4 MB). Peak memory consumption was 164.5 MB. Max. memory is 11.5 GB. [2018-11-28 11:04:04,136 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:04:04,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.59 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-28 11:04:04,137 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.59 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:04:04,137 INFO L168 Benchmark]: Boogie Preprocessor took 63.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -180.4 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-11-28 11:04:04,137 INFO L168 Benchmark]: RCFGBuilder took 188.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-28 11:04:04,138 INFO L168 Benchmark]: BuchiAutomizer took 2819.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 914.0 MB in the end (delta: 194.5 MB). Peak memory consumption was 194.5 MB. Max. memory is 11.5 GB. [2018-11-28 11:04:04,138 INFO L168 Benchmark]: Witness Printer took 3.24 ms. Allocated memory is still 1.2 GB. Free memory is still 911.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:04:04,140 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 164.59 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.59 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 63.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -180.4 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 188.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2819.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 914.0 MB in the end (delta: 194.5 MB). Peak memory consumption was 194.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.24 ms. Allocated memory is still 1.2 GB. Free memory is still 911.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (0 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function x and consists of 3 locations. One deterministic module has affine ranking function d and consists of 3 locations. One deterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function d and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 41 SDtfs, 27 SDslu, 8 SDs, 0 SdLazy, 57 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital25 mio100 ax147 hnf100 lsp27 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq157 hnf93 smp100 dnf100 smp100 tf113 neg100 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...