./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 41d35d9d9785c70c81ceac96efa22b5a4097e6f4 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 07:52:59,506 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 07:52:59,506 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 07:52:59,512 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 07:52:59,513 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 07:52:59,513 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 07:52:59,514 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 07:52:59,515 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 07:52:59,515 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 07:52:59,516 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 07:52:59,516 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 07:52:59,517 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 07:52:59,517 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 07:52:59,517 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 07:52:59,518 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 07:52:59,519 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 07:52:59,519 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 07:52:59,520 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 07:52:59,521 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 07:52:59,522 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 07:52:59,522 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 07:52:59,523 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 07:52:59,524 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 07:52:59,524 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 07:52:59,524 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 07:52:59,525 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 07:52:59,525 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 07:52:59,526 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 07:52:59,526 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 07:52:59,526 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 07:52:59,527 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 07:52:59,527 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 07:52:59,527 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 07:52:59,527 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 07:52:59,528 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 07:52:59,528 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 07:52:59,528 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-08 07:52:59,536 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 07:52:59,536 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 07:52:59,536 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 07:52:59,537 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 07:52:59,537 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 07:52:59,537 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-08 07:52:59,537 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-08 07:52:59,537 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-08 07:52:59,537 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-08 07:52:59,537 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-08 07:52:59,537 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-08 07:52:59,537 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 07:52:59,537 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 07:52:59,538 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 07:52:59,538 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 07:52:59,538 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-08 07:52:59,538 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-08 07:52:59,538 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-08 07:52:59,538 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 07:52:59,538 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-08 07:52:59,538 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 07:52:59,538 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-08 07:52:59,538 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 07:52:59,538 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 07:52:59,539 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-08 07:52:59,539 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 07:52:59,539 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 07:52:59,539 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-08 07:52:59,539 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-08 07:52:59,539 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_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41d35d9d9785c70c81ceac96efa22b5a4097e6f4 [2018-12-08 07:52:59,557 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 07:52:59,565 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 07:52:59,567 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 07:52:59,568 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 07:52:59,568 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 07:52:59,569 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c [2018-12-08 07:52:59,606 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/bin-2019/uautomizer/data/09b50c70e/d70c4d5b5e1e46b1b7c96cd04d03efa2/FLAGfc6db6aec [2018-12-08 07:52:59,987 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 07:52:59,987 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c [2018-12-08 07:52:59,990 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/bin-2019/uautomizer/data/09b50c70e/d70c4d5b5e1e46b1b7c96cd04d03efa2/FLAGfc6db6aec [2018-12-08 07:52:59,999 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/bin-2019/uautomizer/data/09b50c70e/d70c4d5b5e1e46b1b7c96cd04d03efa2 [2018-12-08 07:53:00,001 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 07:53:00,002 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 07:53:00,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 07:53:00,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 07:53:00,005 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 07:53:00,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:53:00" (1/1) ... [2018-12-08 07:53:00,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42aa496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:53:00, skipping insertion in model container [2018-12-08 07:53:00,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:53:00" (1/1) ... [2018-12-08 07:53:00,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 07:53:00,020 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 07:53:00,107 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 07:53:00,109 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 07:53:00,118 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 07:53:00,125 INFO L195 MainTranslator]: Completed translation [2018-12-08 07:53:00,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:53:00 WrapperNode [2018-12-08 07:53:00,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 07:53:00,126 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 07:53:00,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 07:53:00,126 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 07:53:00,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:53:00" (1/1) ... [2018-12-08 07:53:00,134 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:53:00" (1/1) ... [2018-12-08 07:53:00,144 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 07:53:00,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 07:53:00,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 07:53:00,144 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 07:53:00,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:53:00" (1/1) ... [2018-12-08 07:53:00,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:53:00" (1/1) ... [2018-12-08 07:53:00,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:53:00" (1/1) ... [2018-12-08 07:53:00,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:53:00" (1/1) ... [2018-12-08 07:53:00,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:53:00" (1/1) ... [2018-12-08 07:53:00,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:53:00" (1/1) ... [2018-12-08 07:53:00,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:53:00" (1/1) ... [2018-12-08 07:53:00,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 07:53:00,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 07:53:00,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 07:53:00,155 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 07:53:00,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:53:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/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 [2018-12-08 07:53:00,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 07:53:00,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 07:53:00,304 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 07:53:00,304 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-08 07:53:00,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:53:00 BoogieIcfgContainer [2018-12-08 07:53:00,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 07:53:00,305 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-08 07:53:00,305 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-08 07:53:00,307 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-08 07:53:00,308 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 07:53:00,308 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.12 07:53:00" (1/3) ... [2018-12-08 07:53:00,308 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e51225f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 07:53:00, skipping insertion in model container [2018-12-08 07:53:00,308 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 07:53:00,309 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:53:00" (2/3) ... [2018-12-08 07:53:00,309 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e51225f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 07:53:00, skipping insertion in model container [2018-12-08 07:53:00,309 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 07:53:00,309 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:53:00" (3/3) ... [2018-12-08 07:53:00,310 INFO L375 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c [2018-12-08 07:53:00,343 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 07:53:00,344 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-08 07:53:00,344 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-08 07:53:00,344 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-08 07:53:00,344 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 07:53:00,344 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 07:53:00,344 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-08 07:53:00,344 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 07:53:00,344 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-08 07:53:00,352 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-08 07:53:00,365 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-08 07:53:00,365 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 07:53:00,365 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 07:53:00,369 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-08 07:53:00,370 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-08 07:53:00,370 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-08 07:53:00,370 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-08 07:53:00,370 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-08 07:53:00,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 07:53:00,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 07:53:00,371 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-08 07:53:00,371 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-08 07:53:00,375 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 4#L23-2true [2018-12-08 07:53:00,376 INFO L796 eck$LassoCheckResult]: Loop: 4#L23-2true assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 5#L21true assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 4#L23-2true [2018-12-08 07:53:00,379 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:00,379 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-12-08 07:53:00,380 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 07:53:00,381 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 07:53:00,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:00,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 07:53:00,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:00,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:00,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:00,440 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:00,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2018-12-08 07:53:00,440 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 07:53:00,440 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 07:53:00,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:00,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 07:53:00,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:00,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:00,449 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:00,449 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2018-12-08 07:53:00,449 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 07:53:00,449 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 07:53:00,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:00,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 07:53:00,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:00,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:00,493 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 07:53:00,494 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 07:53:00,494 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 07:53:00,494 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 07:53:00,494 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 07:53:00,495 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 07:53:00,495 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 07:53:00,495 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 07:53:00,495 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration1_Loop [2018-12-08 07:53:00,495 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 07:53:00,495 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 07:53:00,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:00,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:00,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:00,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:00,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:00,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:00,582 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 07:53:00,582 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/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 [2018-12-08 07:53:00,586 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:00,586 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:00,604 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 07:53:00,604 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_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/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 [2018-12-08 07:53:00,607 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:00,607 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:00,622 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 07:53:00,622 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_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/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 [2018-12-08 07:53:00,624 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:00,625 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/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 [2018-12-08 07:53:00,641 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 07:53:00,641 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:00,657 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 07:53:00,658 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 07:53:00,658 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 07:53:00,658 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 07:53:00,658 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 07:53:00,658 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 07:53:00,659 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 07:53:00,659 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 07:53:00,659 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 07:53:00,659 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration1_Loop [2018-12-08 07:53:00,659 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 07:53:00,659 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 07:53:00,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:00,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:00,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:00,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:00,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:00,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:00,705 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 07:53:00,708 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 07:53:00,709 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 [2018-12-08 07:53:00,710 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 07:53:00,710 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 07:53:00,710 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 07:53:00,710 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 07:53:00,713 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 07:53:00,713 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 07:53:00,717 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 07:53:00,718 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 [2018-12-08 07:53:00,718 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 07:53:00,718 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 07:53:00,718 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 07:53:00,718 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 07:53:00,719 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 07:53:00,719 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 07:53:00,724 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 07:53:00,724 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 [2018-12-08 07:53:00,724 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 07:53:00,724 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 07:53:00,725 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 07:53:00,725 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 07:53:00,725 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 07:53:00,725 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 07:53:00,725 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 07:53:00,728 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 07:53:00,730 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-08 07:53:00,730 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-08 07:53:00,731 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 07:53:00,731 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 07:53:00,731 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 07:53:00,732 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-12-08 07:53:00,733 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 07:53:00,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:53:00,755 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 07:53:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:53:00,764 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 07:53:00,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 07:53:00,783 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 [2018-12-08 07:53:00,784 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-12-08 07:53:00,814 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 37 states and 48 transitions. Complement of second has 8 states. [2018-12-08 07:53:00,814 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 [2018-12-08 07:53:00,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-08 07:53:00,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2018-12-08 07:53:00,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 1 letters. Loop has 2 letters. [2018-12-08 07:53:00,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 07:53:00,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-08 07:53:00,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 07:53:00,818 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 1 letters. Loop has 4 letters. [2018-12-08 07:53:00,818 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 07:53:00,818 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 48 transitions. [2018-12-08 07:53:00,820 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-08 07:53:00,822 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 13 states and 19 transitions. [2018-12-08 07:53:00,823 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-12-08 07:53:00,823 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-12-08 07:53:00,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2018-12-08 07:53:00,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 07:53:00,823 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2018-12-08 07:53:00,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2018-12-08 07:53:00,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2018-12-08 07:53:00,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-08 07:53:00,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 18 transitions. [2018-12-08 07:53:00,839 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2018-12-08 07:53:00,840 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2018-12-08 07:53:00,840 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-08 07:53:00,840 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 18 transitions. [2018-12-08 07:53:00,840 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-08 07:53:00,840 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 07:53:00,840 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 07:53:00,840 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-08 07:53:00,840 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-08 07:53:00,841 INFO L794 eck$LassoCheckResult]: Stem: 89#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 90#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 82#L21 [2018-12-08 07:53:00,841 INFO L796 eck$LassoCheckResult]: Loop: 82#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 83#L23 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~y~0 := main_~y~0 - 1;main_~z~0 := main_#t~nondet5;havoc main_#t~nondet5; 87#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 82#L21 [2018-12-08 07:53:00,841 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:00,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-12-08 07:53:00,841 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 07:53:00,841 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 07:53:00,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:00,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 07:53:00,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:00,848 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:00,849 INFO L82 PathProgramCache]: Analyzing trace with hash 44774, now seen corresponding path program 1 times [2018-12-08 07:53:00,849 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 07:53:00,849 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 07:53:00,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:00,849 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 07:53:00,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:00,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:00,853 INFO L82 PathProgramCache]: Analyzing trace with hash 29865565, now seen corresponding path program 1 times [2018-12-08 07:53:00,853 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 07:53:00,854 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 07:53:00,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:00,854 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 07:53:00,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:00,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:00,881 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 07:53:00,881 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 07:53:00,881 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 07:53:00,881 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 07:53:00,881 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 07:53:00,881 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 07:53:00,881 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 07:53:00,881 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 07:53:00,881 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration2_Loop [2018-12-08 07:53:00,881 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 07:53:00,881 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 07:53:00,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:00,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:00,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:00,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:00,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:00,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:00,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:00,940 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 07:53:00,940 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/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 [2018-12-08 07:53:00,942 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:00,942 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:00,957 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 07:53:00,957 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_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/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 [2018-12-08 07:53:00,960 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:00,960 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:00,963 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 07:53:00,963 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/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 [2018-12-08 07:53:00,977 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:00,977 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:00,992 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 07:53:00,992 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/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 [2018-12-08 07:53:00,995 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:00,995 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/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 [2018-12-08 07:53:01,012 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 07:53:01,012 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:01,052 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 07:53:01,053 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 07:53:01,053 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 07:53:01,053 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 07:53:01,053 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 07:53:01,053 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 07:53:01,053 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 07:53:01,053 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 07:53:01,053 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 07:53:01,053 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration2_Loop [2018-12-08 07:53:01,053 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 07:53:01,054 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 07:53:01,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,139 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 07:53:01,139 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 07:53:01,140 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 [2018-12-08 07:53:01,140 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 07:53:01,140 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 07:53:01,141 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 07:53:01,141 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 07:53:01,142 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 07:53:01,142 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 07:53:01,144 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 07:53:01,144 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 [2018-12-08 07:53:01,145 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 07:53:01,145 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 07:53:01,145 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 07:53:01,145 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 07:53:01,145 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 07:53:01,145 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 07:53:01,145 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 07:53:01,146 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 07:53:01,147 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 [2018-12-08 07:53:01,147 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 07:53:01,148 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 07:53:01,148 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 07:53:01,148 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 07:53:01,149 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 07:53:01,149 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 07:53:01,152 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 07:53:01,152 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 [2018-12-08 07:53:01,152 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 07:53:01,152 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 07:53:01,153 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 07:53:01,153 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 07:53:01,153 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 07:53:01,153 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 07:53:01,153 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 07:53:01,155 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 07:53:01,157 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-08 07:53:01,157 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-08 07:53:01,158 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 07:53:01,158 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 07:53:01,158 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 07:53:01,158 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-12-08 07:53:01,158 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 07:53:01,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:01,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:53:01,172 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 07:53:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:53:01,175 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 07:53:01,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 07:53:01,186 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 [2018-12-08 07:53:01,186 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 18 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-12-08 07:53:01,198 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 18 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 31 states and 49 transitions. Complement of second has 6 states. [2018-12-08 07:53:01,198 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 [2018-12-08 07:53:01,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-08 07:53:01,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2018-12-08 07:53:01,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 3 letters. [2018-12-08 07:53:01,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 07:53:01,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 3 letters. [2018-12-08 07:53:01,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 07:53:01,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 6 letters. [2018-12-08 07:53:01,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 07:53:01,200 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 49 transitions. [2018-12-08 07:53:01,200 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-08 07:53:01,201 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 27 states and 42 transitions. [2018-12-08 07:53:01,201 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-12-08 07:53:01,201 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-12-08 07:53:01,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 42 transitions. [2018-12-08 07:53:01,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 07:53:01,201 INFO L705 BuchiCegarLoop]: Abstraction has 27 states and 42 transitions. [2018-12-08 07:53:01,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 42 transitions. [2018-12-08 07:53:01,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2018-12-08 07:53:01,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-12-08 07:53:01,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 38 transitions. [2018-12-08 07:53:01,203 INFO L728 BuchiCegarLoop]: Abstraction has 23 states and 38 transitions. [2018-12-08 07:53:01,203 INFO L608 BuchiCegarLoop]: Abstraction has 23 states and 38 transitions. [2018-12-08 07:53:01,203 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-08 07:53:01,203 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 38 transitions. [2018-12-08 07:53:01,204 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-08 07:53:01,204 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 07:53:01,204 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 07:53:01,204 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-08 07:53:01,204 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-08 07:53:01,205 INFO L794 eck$LassoCheckResult]: Stem: 173#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 167#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 168#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 164#L23 [2018-12-08 07:53:01,205 INFO L796 eck$LassoCheckResult]: Loop: 164#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 174#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 180#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 164#L23 [2018-12-08 07:53:01,205 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:01,205 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2018-12-08 07:53:01,205 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 07:53:01,205 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 07:53:01,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:01,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 07:53:01,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:01,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:01,211 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:01,212 INFO L82 PathProgramCache]: Analyzing trace with hash 49336, now seen corresponding path program 1 times [2018-12-08 07:53:01,212 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 07:53:01,212 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 07:53:01,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:01,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 07:53:01,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:01,216 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:01,216 INFO L82 PathProgramCache]: Analyzing trace with hash 925834452, now seen corresponding path program 1 times [2018-12-08 07:53:01,216 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 07:53:01,216 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 07:53:01,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:01,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 07:53:01,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:01,246 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 07:53:01,246 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 07:53:01,246 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 07:53:01,246 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 07:53:01,246 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 07:53:01,246 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 07:53:01,246 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 07:53:01,246 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 07:53:01,246 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration3_Loop [2018-12-08 07:53:01,246 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 07:53:01,247 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 07:53:01,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,307 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 07:53:01,307 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/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 [2018-12-08 07:53:01,309 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:01,309 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:01,312 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 07:53:01,312 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/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 [2018-12-08 07:53:01,328 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:01,328 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:01,330 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 07:53:01,330 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/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 [2018-12-08 07:53:01,344 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:01,345 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:01,359 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 07:53:01,359 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_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/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 [2018-12-08 07:53:01,361 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:01,361 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:01,375 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 07:53:01,375 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_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/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 [2018-12-08 07:53:01,378 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:01,378 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/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 [2018-12-08 07:53:01,394 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 07:53:01,394 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:01,435 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 07:53:01,436 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 07:53:01,436 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 07:53:01,436 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 07:53:01,436 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 07:53:01,436 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 07:53:01,436 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 07:53:01,436 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 07:53:01,436 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 07:53:01,436 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration3_Loop [2018-12-08 07:53:01,437 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 07:53:01,437 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 07:53:01,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,495 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 07:53:01,495 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 07:53:01,495 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 [2018-12-08 07:53:01,495 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 07:53:01,495 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 07:53:01,496 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 07:53:01,496 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 07:53:01,496 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 07:53:01,496 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 07:53:01,496 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 07:53:01,497 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 07:53:01,497 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 [2018-12-08 07:53:01,497 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 07:53:01,497 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 07:53:01,497 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 07:53:01,497 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 07:53:01,497 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 07:53:01,498 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 07:53:01,498 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 07:53:01,498 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 07:53:01,498 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 [2018-12-08 07:53:01,499 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 07:53:01,499 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 07:53:01,499 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 07:53:01,499 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 07:53:01,499 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 07:53:01,499 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 07:53:01,499 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 07:53:01,500 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 07:53:01,500 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 [2018-12-08 07:53:01,500 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 07:53:01,500 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 07:53:01,500 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 07:53:01,500 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 07:53:01,501 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 07:53:01,501 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 07:53:01,501 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 07:53:01,503 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 07:53:01,504 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-08 07:53:01,504 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-08 07:53:01,505 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 07:53:01,505 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 07:53:01,505 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 07:53:01,505 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-12-08 07:53:01,505 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 07:53:01,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:53:01,520 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 07:53:01,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:53:01,523 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 07:53:01,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 07:53:01,532 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 [2018-12-08 07:53:01,532 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 38 transitions. cyclomatic complexity: 20 Second operand 4 states. [2018-12-08 07:53:01,543 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 38 transitions. cyclomatic complexity: 20. Second operand 4 states. Result 54 states and 85 transitions. Complement of second has 7 states. [2018-12-08 07:53:01,543 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 [2018-12-08 07:53:01,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-08 07:53:01,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2018-12-08 07:53:01,544 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 3 letters. [2018-12-08 07:53:01,544 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 07:53:01,544 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2018-12-08 07:53:01,544 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 07:53:01,544 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 6 letters. [2018-12-08 07:53:01,544 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 07:53:01,544 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 85 transitions. [2018-12-08 07:53:01,545 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-12-08 07:53:01,546 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 49 states and 78 transitions. [2018-12-08 07:53:01,546 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-12-08 07:53:01,546 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2018-12-08 07:53:01,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 78 transitions. [2018-12-08 07:53:01,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 07:53:01,546 INFO L705 BuchiCegarLoop]: Abstraction has 49 states and 78 transitions. [2018-12-08 07:53:01,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 78 transitions. [2018-12-08 07:53:01,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2018-12-08 07:53:01,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-12-08 07:53:01,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 76 transitions. [2018-12-08 07:53:01,549 INFO L728 BuchiCegarLoop]: Abstraction has 47 states and 76 transitions. [2018-12-08 07:53:01,549 INFO L608 BuchiCegarLoop]: Abstraction has 47 states and 76 transitions. [2018-12-08 07:53:01,549 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-08 07:53:01,549 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 76 transitions. [2018-12-08 07:53:01,550 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-12-08 07:53:01,550 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 07:53:01,550 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 07:53:01,550 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2018-12-08 07:53:01,550 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-08 07:53:01,550 INFO L794 eck$LassoCheckResult]: Stem: 292#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 283#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 284#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 289#L23 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~y~0 := main_~y~0 - 1;main_~z~0 := main_#t~nondet5;havoc main_#t~nondet5; 318#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 299#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 293#L23 [2018-12-08 07:53:01,550 INFO L796 eck$LassoCheckResult]: Loop: 293#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 294#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 314#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 293#L23 [2018-12-08 07:53:01,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:01,551 INFO L82 PathProgramCache]: Analyzing trace with hash 925832530, now seen corresponding path program 2 times [2018-12-08 07:53:01,551 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 07:53:01,551 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 07:53:01,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:01,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 07:53:01,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:01,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:01,557 INFO L82 PathProgramCache]: Analyzing trace with hash 49336, now seen corresponding path program 2 times [2018-12-08 07:53:01,557 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 07:53:01,557 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 07:53:01,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:01,558 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 07:53:01,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:01,561 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:01,561 INFO L82 PathProgramCache]: Analyzing trace with hash -803054137, now seen corresponding path program 1 times [2018-12-08 07:53:01,561 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 07:53:01,561 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 07:53:01,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:01,562 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 07:53:01,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:01,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:01,586 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 07:53:01,587 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 07:53:01,587 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 07:53:01,587 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 07:53:01,587 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 07:53:01,587 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 07:53:01,587 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 07:53:01,587 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 07:53:01,587 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration4_Loop [2018-12-08 07:53:01,587 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 07:53:01,587 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 07:53:01,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,637 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 07:53:01,637 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/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 [2018-12-08 07:53:01,639 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:01,639 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:01,641 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 07:53:01,641 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/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 [2018-12-08 07:53:01,656 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:01,656 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:01,658 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 07:53:01,658 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=4, ULTIMATE.start_main_#t~nondet6=4} Honda state: {ULTIMATE.start_main_~x~0=4, ULTIMATE.start_main_#t~nondet6=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/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 [2018-12-08 07:53:01,673 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:01,673 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:01,687 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 07:53:01,687 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_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/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 [2018-12-08 07:53:01,689 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:01,690 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:01,704 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 07:53:01,704 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/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 [2018-12-08 07:53:01,707 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:01,707 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/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 [2018-12-08 07:53:01,723 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 07:53:01,723 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:01,763 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 07:53:01,764 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 07:53:01,764 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 07:53:01,764 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 07:53:01,764 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 07:53:01,764 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 07:53:01,764 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 07:53:01,764 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 07:53:01,764 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 07:53:01,765 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration4_Loop [2018-12-08 07:53:01,765 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 07:53:01,765 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 07:53:01,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,827 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 07:53:01,827 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 07:53:01,828 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 [2018-12-08 07:53:01,828 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 07:53:01,828 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 07:53:01,828 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 07:53:01,828 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 07:53:01,828 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 07:53:01,829 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 07:53:01,829 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 07:53:01,829 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 07:53:01,829 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 [2018-12-08 07:53:01,830 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 07:53:01,830 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 07:53:01,830 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 07:53:01,830 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 07:53:01,830 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 07:53:01,830 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 07:53:01,830 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 07:53:01,831 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 07:53:01,831 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 [2018-12-08 07:53:01,831 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 07:53:01,831 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 07:53:01,831 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 07:53:01,832 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 07:53:01,832 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 07:53:01,832 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 07:53:01,832 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 07:53:01,834 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 07:53:01,835 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-08 07:53:01,835 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-08 07:53:01,835 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 07:53:01,835 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 07:53:01,835 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 07:53:01,835 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-12-08 07:53:01,835 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 07:53:01,843 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:01,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:53:01,847 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 07:53:01,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:53:01,849 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 07:53:01,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 07:53:01,860 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 [2018-12-08 07:53:01,860 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40 Second operand 4 states. [2018-12-08 07:53:01,874 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40. Second operand 4 states. Result 65 states and 102 transitions. Complement of second has 7 states. [2018-12-08 07:53:01,874 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 [2018-12-08 07:53:01,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-08 07:53:01,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2018-12-08 07:53:01,874 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2018-12-08 07:53:01,874 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 07:53:01,874 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-08 07:53:01,885 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:01,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:53:01,890 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 07:53:01,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:53:01,893 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 07:53:01,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 07:53:01,904 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2018-12-08 07:53:01,904 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40 Second operand 4 states. [2018-12-08 07:53:01,917 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40. Second operand 4 states. Result 60 states and 95 transitions. Complement of second has 7 states. [2018-12-08 07:53:01,917 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 [2018-12-08 07:53:01,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-08 07:53:01,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2018-12-08 07:53:01,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 6 letters. Loop has 3 letters. [2018-12-08 07:53:01,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 07:53:01,917 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-08 07:53:01,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:01,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:53:01,927 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 07:53:01,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:53:01,930 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 07:53:01,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 07:53:01,941 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-12-08 07:53:01,941 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40 Second operand 4 states. [2018-12-08 07:53:01,958 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40. Second operand 4 states. Result 88 states and 137 transitions. Complement of second has 9 states. [2018-12-08 07:53:01,958 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 [2018-12-08 07:53:01,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-08 07:53:01,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-12-08 07:53:01,958 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 6 letters. Loop has 3 letters. [2018-12-08 07:53:01,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 07:53:01,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 9 letters. Loop has 3 letters. [2018-12-08 07:53:01,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 07:53:01,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 6 letters. Loop has 6 letters. [2018-12-08 07:53:01,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 07:53:01,959 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 137 transitions. [2018-12-08 07:53:01,960 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2018-12-08 07:53:01,961 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 66 states and 103 transitions. [2018-12-08 07:53:01,961 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2018-12-08 07:53:01,961 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2018-12-08 07:53:01,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 103 transitions. [2018-12-08 07:53:01,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 07:53:01,961 INFO L705 BuchiCegarLoop]: Abstraction has 66 states and 103 transitions. [2018-12-08 07:53:01,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 103 transitions. [2018-12-08 07:53:01,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 38. [2018-12-08 07:53:01,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-08 07:53:01,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2018-12-08 07:53:01,963 INFO L728 BuchiCegarLoop]: Abstraction has 38 states and 61 transitions. [2018-12-08 07:53:01,964 INFO L608 BuchiCegarLoop]: Abstraction has 38 states and 61 transitions. [2018-12-08 07:53:01,964 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-08 07:53:01,964 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 61 transitions. [2018-12-08 07:53:01,964 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-08 07:53:01,964 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 07:53:01,964 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 07:53:01,964 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2018-12-08 07:53:01,964 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-08 07:53:01,964 INFO L794 eck$LassoCheckResult]: Stem: 681#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 676#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 677#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 682#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 683#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 706#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 672#L23-2 [2018-12-08 07:53:01,965 INFO L796 eck$LassoCheckResult]: Loop: 672#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 671#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 672#L23-2 [2018-12-08 07:53:01,965 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:01,965 INFO L82 PathProgramCache]: Analyzing trace with hash 925834450, now seen corresponding path program 1 times [2018-12-08 07:53:01,965 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 07:53:01,965 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 07:53:01,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:01,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 07:53:01,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:01,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:01,970 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:01,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2018-12-08 07:53:01,971 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 07:53:01,971 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 07:53:01,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:01,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 07:53:01,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:01,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:01,973 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:01,973 INFO L82 PathProgramCache]: Analyzing trace with hash 668676501, now seen corresponding path program 2 times [2018-12-08 07:53:01,973 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 07:53:01,974 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 07:53:01,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:01,974 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 07:53:01,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:01,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:01,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:01,995 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 07:53:01,995 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 07:53:01,995 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 07:53:01,995 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 07:53:01,995 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 07:53:01,995 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 07:53:01,995 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 07:53:01,995 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 07:53:01,995 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration5_Loop [2018-12-08 07:53:01,995 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 07:53:01,995 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 07:53:01,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:01,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:02,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:02,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:02,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:02,030 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 07:53:02,031 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/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 [2018-12-08 07:53:02,032 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:02,032 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:02,048 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 07:53:02,048 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_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/bin-2019/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 07:53:02,051 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:02,051 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:02,065 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 07:53:02,065 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/bin-2019/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 07:53:02,068 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:02,068 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:02,082 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 07:53:02,082 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/bin-2019/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 07:53:02,085 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:02,085 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:02,087 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 07:53:02,087 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_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/bin-2019/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 07:53:02,102 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:02,102 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/bin-2019/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 07:53:02,118 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 07:53:02,118 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:02,133 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 07:53:02,134 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 07:53:02,135 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 07:53:02,135 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 07:53:02,135 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 07:53:02,135 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 07:53:02,135 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 07:53:02,135 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 07:53:02,135 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 07:53:02,135 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration5_Loop [2018-12-08 07:53:02,135 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 07:53:02,135 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 07:53:02,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:02,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:02,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:02,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:02,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:02,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:02,171 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 07:53:02,171 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 07:53:02,172 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 [2018-12-08 07:53:02,172 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 07:53:02,172 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 07:53:02,172 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 07:53:02,172 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 07:53:02,173 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 07:53:02,173 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 07:53:02,174 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 07:53:02,174 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 [2018-12-08 07:53:02,175 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 07:53:02,175 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 07:53:02,175 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 07:53:02,175 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 07:53:02,175 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 07:53:02,175 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 07:53:02,175 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 07:53:02,175 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 07:53:02,176 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 [2018-12-08 07:53:02,176 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 07:53:02,176 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 07:53:02,176 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 07:53:02,176 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 07:53:02,176 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 07:53:02,177 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 07:53:02,178 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 07:53:02,178 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 [2018-12-08 07:53:02,179 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 07:53:02,179 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 07:53:02,179 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 07:53:02,179 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-12-08 07:53:02,179 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 07:53:02,179 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-12-08 07:53:02,179 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 07:53:02,180 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 07:53:02,181 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 [2018-12-08 07:53:02,181 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 07:53:02,181 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 07:53:02,181 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 07:53:02,181 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 07:53:02,181 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 07:53:02,181 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 07:53:02,181 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 07:53:02,183 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 07:53:02,184 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-08 07:53:02,184 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-08 07:53:02,184 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 07:53:02,184 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 07:53:02,184 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 07:53:02,184 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-12-08 07:53:02,185 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 07:53:02,208 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:53:02,212 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 07:53:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:53:02,214 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 07:53:02,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 07:53:02,220 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 [2018-12-08 07:53:02,220 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 61 transitions. cyclomatic complexity: 30 Second operand 3 states. [2018-12-08 07:53:02,227 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 61 transitions. cyclomatic complexity: 30. Second operand 3 states. Result 100 states and 153 transitions. Complement of second has 5 states. [2018-12-08 07:53:02,227 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 [2018-12-08 07:53:02,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-08 07:53:02,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-12-08 07:53:02,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2018-12-08 07:53:02,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 07:53:02,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2018-12-08 07:53:02,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 07:53:02,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2018-12-08 07:53:02,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 07:53:02,228 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 100 states and 153 transitions. [2018-12-08 07:53:02,229 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-08 07:53:02,229 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 100 states to 82 states and 129 transitions. [2018-12-08 07:53:02,230 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-12-08 07:53:02,230 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2018-12-08 07:53:02,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 129 transitions. [2018-12-08 07:53:02,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 07:53:02,230 INFO L705 BuchiCegarLoop]: Abstraction has 82 states and 129 transitions. [2018-12-08 07:53:02,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 129 transitions. [2018-12-08 07:53:02,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 69. [2018-12-08 07:53:02,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-12-08 07:53:02,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 111 transitions. [2018-12-08 07:53:02,233 INFO L728 BuchiCegarLoop]: Abstraction has 69 states and 111 transitions. [2018-12-08 07:53:02,233 INFO L608 BuchiCegarLoop]: Abstraction has 69 states and 111 transitions. [2018-12-08 07:53:02,233 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-12-08 07:53:02,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 111 transitions. [2018-12-08 07:53:02,233 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-08 07:53:02,233 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 07:53:02,233 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 07:53:02,234 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2018-12-08 07:53:02,234 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-08 07:53:02,234 INFO L794 eck$LassoCheckResult]: Stem: 863#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 864#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 898#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 910#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 860#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 870#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 890#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 886#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 877#L23-2 [2018-12-08 07:53:02,234 INFO L796 eck$LassoCheckResult]: Loop: 877#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 876#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 877#L23-2 [2018-12-08 07:53:02,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:02,234 INFO L82 PathProgramCache]: Analyzing trace with hash 602338671, now seen corresponding path program 3 times [2018-12-08 07:53:02,234 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 07:53:02,234 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 07:53:02,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:02,235 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 07:53:02,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:02,241 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:02,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2018-12-08 07:53:02,242 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 07:53:02,242 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 07:53:02,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:02,243 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 07:53:02,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:02,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:02,245 INFO L82 PathProgramCache]: Analyzing trace with hash -973121806, now seen corresponding path program 4 times [2018-12-08 07:53:02,245 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 07:53:02,245 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 07:53:02,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:02,246 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 07:53:02,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 07:53:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:02,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 07:53:02,262 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 07:53:02,262 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 07:53:02,262 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 07:53:02,262 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 07:53:02,262 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 07:53:02,262 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 07:53:02,262 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 07:53:02,262 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 07:53:02,262 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration6_Loop [2018-12-08 07:53:02,262 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 07:53:02,262 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 07:53:02,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:02,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:02,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:02,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:02,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:02,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:02,301 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 07:53:02,301 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/bin-2019/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 07:53:02,302 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:02,302 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:02,317 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 07:53:02,317 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_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/bin-2019/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 07:53:02,320 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:02,320 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:02,334 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 07:53:02,335 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/bin-2019/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 07:53:02,337 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:02,337 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:02,351 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 07:53:02,351 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/bin-2019/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 07:53:02,354 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:02,354 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:02,356 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 07:53:02,356 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_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/bin-2019/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 07:53:02,371 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 07:53:02,371 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a0e1065-be84-4d47-9a16-aaeacf4de6ba/bin-2019/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 07:53:02,388 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 07:53:02,388 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 07:53:02,403 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 07:53:02,404 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 07:53:02,404 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 07:53:02,405 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 07:53:02,405 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 07:53:02,405 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 07:53:02,405 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 07:53:02,405 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 07:53:02,405 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 07:53:02,405 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration6_Loop [2018-12-08 07:53:02,405 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 07:53:02,405 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 07:53:02,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:02,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:02,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:02,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:02,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:02,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 07:53:02,440 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 07:53:02,440 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 07:53:02,440 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 [2018-12-08 07:53:02,441 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 07:53:02,441 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 07:53:02,441 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 07:53:02,441 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 07:53:02,441 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 07:53:02,441 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 07:53:02,441 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 07:53:02,441 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 07:53:02,442 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 [2018-12-08 07:53:02,442 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 07:53:02,442 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 07:53:02,442 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 07:53:02,442 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 07:53:02,443 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 07:53:02,443 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 07:53:02,444 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 07:53:02,445 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 [2018-12-08 07:53:02,445 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 07:53:02,445 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 07:53:02,445 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 07:53:02,445 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-12-08 07:53:02,445 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 07:53:02,446 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-12-08 07:53:02,446 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 07:53:02,447 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 07:53:02,448 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 [2018-12-08 07:53:02,448 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 07:53:02,448 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 07:53:02,448 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 07:53:02,448 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 07:53:02,449 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 07:53:02,449 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 07:53:02,449 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 07:53:02,450 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 07:53:02,452 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-08 07:53:02,452 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-08 07:53:02,452 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 07:53:02,452 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 07:53:02,453 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 07:53:02,453 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-12-08 07:53:02,453 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 07:53:02,464 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:53:02,468 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 07:53:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:53:02,471 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 07:53:02,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 07:53:02,479 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 [2018-12-08 07:53:02,479 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56 Second operand 3 states. [2018-12-08 07:53:02,486 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56. Second operand 3 states. Result 109 states and 164 transitions. Complement of second has 5 states. [2018-12-08 07:53:02,486 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 [2018-12-08 07:53:02,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-08 07:53:02,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-12-08 07:53:02,487 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2018-12-08 07:53:02,487 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 07:53:02,487 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-08 07:53:02,497 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:53:02,501 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 07:53:02,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:53:02,504 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 07:53:02,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 07:53:02,510 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 [2018-12-08 07:53:02,510 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56 Second operand 3 states. [2018-12-08 07:53:02,515 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56. Second operand 3 states. Result 109 states and 164 transitions. Complement of second has 5 states. [2018-12-08 07:53:02,515 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 [2018-12-08 07:53:02,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-08 07:53:02,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-12-08 07:53:02,515 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2018-12-08 07:53:02,515 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 07:53:02,515 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-08 07:53:02,522 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 07:53:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:53:02,526 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 07:53:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 07:53:02,528 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 07:53:02,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 07:53:02,535 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 [2018-12-08 07:53:02,536 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56 Second operand 3 states. [2018-12-08 07:53:02,546 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56. Second operand 3 states. Result 125 states and 192 transitions. Complement of second has 4 states. [2018-12-08 07:53:02,546 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 [2018-12-08 07:53:02,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-08 07:53:02,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2018-12-08 07:53:02,547 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 8 letters. Loop has 2 letters. [2018-12-08 07:53:02,547 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 07:53:02,547 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 2 letters. [2018-12-08 07:53:02,547 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 07:53:02,547 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 8 letters. Loop has 4 letters. [2018-12-08 07:53:02,548 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 07:53:02,548 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 192 transitions. [2018-12-08 07:53:02,549 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-08 07:53:02,549 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 0 states and 0 transitions. [2018-12-08 07:53:02,549 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-08 07:53:02,549 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-08 07:53:02,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-08 07:53:02,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 07:53:02,550 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 07:53:02,550 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 07:53:02,550 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 07:53:02,550 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-12-08 07:53:02,550 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-08 07:53:02,550 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-08 07:53:02,550 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-08 07:53:02,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.12 07:53:02 BoogieIcfgContainer [2018-12-08 07:53:02,555 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-08 07:53:02,555 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 07:53:02,555 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 07:53:02,556 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 07:53:02,556 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:53:00" (3/4) ... [2018-12-08 07:53:02,559 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 07:53:02,559 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 07:53:02,559 INFO L168 Benchmark]: Toolchain (without parser) took 2557.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.9 MB). Free memory was 954.4 MB in the beginning and 970.6 MB in the end (delta: -16.2 MB). Peak memory consumption was 175.6 MB. Max. memory is 11.5 GB. [2018-12-08 07:53:02,560 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-12-08 07:53:02,560 INFO L168 Benchmark]: CACSL2BoogieTranslator took 123.24 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 07:53:02,561 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.12 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 07:53:02,561 INFO L168 Benchmark]: Boogie Preprocessor took 10.60 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 07:53:02,561 INFO L168 Benchmark]: RCFGBuilder took 149.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.1 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -130.4 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-12-08 07:53:02,562 INFO L168 Benchmark]: BuchiAutomizer took 2250.26 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 102.8 MB). Free memory was 1.1 GB in the beginning and 970.6 MB in the end (delta: 100.7 MB). Peak memory consumption was 203.5 MB. Max. memory is 11.5 GB. [2018-12-08 07:53:02,562 INFO L168 Benchmark]: Witness Printer took 3.28 ms. Allocated memory is still 1.2 GB. Free memory is still 970.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 07:53:02,564 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 123.24 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.12 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.60 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 149.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.1 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -130.4 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2250.26 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 102.8 MB). Free memory was 1.1 GB in the beginning and 970.6 MB in the end (delta: 100.7 MB). Peak memory consumption was 203.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.28 ms. Allocated memory is still 1.2 GB. Free memory is still 970.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (0 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function z and consists of 4 locations. One deterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function z and consists of 4 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 7 iterations. TraceHistogramMax:3. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 48 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 69 states and ocurred in iteration 5. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 81 SDtfs, 75 SDslu, 35 SDs, 0 SdLazy, 76 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax153 hnf100 lsp29 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 21 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...