./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/cggmp2005b_true-unreach-call_true-termination.c.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_15875b1f-11d9-4a0a-8257-a67598d93898/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_15875b1f-11d9-4a0a-8257-a67598d93898/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_15875b1f-11d9-4a0a-8257-a67598d93898/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_15875b1f-11d9-4a0a-8257-a67598d93898/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/cggmp2005b_true-unreach-call_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_15875b1f-11d9-4a0a-8257-a67598d93898/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_15875b1f-11d9-4a0a-8257-a67598d93898/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 32bit --witnessprinter.graph.data.programhash 7408fe5ba42f5c474832c90e26f3e7ef2342554c .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 01:45:09,684 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 01:45:09,685 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 01:45:09,691 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 01:45:09,692 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 01:45:09,692 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 01:45:09,693 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 01:45:09,694 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 01:45:09,695 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 01:45:09,696 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 01:45:09,697 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 01:45:09,697 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 01:45:09,698 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 01:45:09,698 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 01:45:09,699 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 01:45:09,700 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 01:45:09,700 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 01:45:09,702 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 01:45:09,703 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 01:45:09,704 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 01:45:09,705 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 01:45:09,706 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 01:45:09,708 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 01:45:09,708 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 01:45:09,708 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 01:45:09,709 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 01:45:09,709 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 01:45:09,710 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 01:45:09,711 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 01:45:09,711 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 01:45:09,712 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 01:45:09,712 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 01:45:09,712 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 01:45:09,712 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 01:45:09,713 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 01:45:09,714 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 01:45:09,714 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_15875b1f-11d9-4a0a-8257-a67598d93898/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-23 01:45:09,725 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 01:45:09,725 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 01:45:09,726 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 01:45:09,727 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 01:45:09,727 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 01:45:09,727 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 01:45:09,727 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 01:45:09,727 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 01:45:09,727 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 01:45:09,727 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 01:45:09,728 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 01:45:09,728 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 01:45:09,728 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 01:45:09,728 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 01:45:09,728 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 01:45:09,728 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 01:45:09,728 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 01:45:09,729 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 01:45:09,729 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 01:45:09,729 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 01:45:09,729 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 01:45:09,729 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 01:45:09,729 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 01:45:09,729 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 01:45:09,730 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 01:45:09,730 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 01:45:09,730 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 01:45:09,730 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 01:45:09,730 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 01:45:09,730 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 01:45:09,730 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 01:45:09,731 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 01:45:09,731 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_15875b1f-11d9-4a0a-8257-a67598d93898/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7408fe5ba42f5c474832c90e26f3e7ef2342554c [2018-11-23 01:45:09,754 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 01:45:09,763 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 01:45:09,766 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 01:45:09,767 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 01:45:09,767 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 01:45:09,768 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_15875b1f-11d9-4a0a-8257-a67598d93898/bin-2019/uautomizer/../../sv-benchmarks/c/loop-lit/cggmp2005b_true-unreach-call_true-termination.c.i [2018-11-23 01:45:09,812 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_15875b1f-11d9-4a0a-8257-a67598d93898/bin-2019/uautomizer/data/8f8ff72de/c3922098dab743a28b5e1812289c2fea/FLAG99c69e866 [2018-11-23 01:45:10,139 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 01:45:10,139 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_15875b1f-11d9-4a0a-8257-a67598d93898/sv-benchmarks/c/loop-lit/cggmp2005b_true-unreach-call_true-termination.c.i [2018-11-23 01:45:10,143 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_15875b1f-11d9-4a0a-8257-a67598d93898/bin-2019/uautomizer/data/8f8ff72de/c3922098dab743a28b5e1812289c2fea/FLAG99c69e866 [2018-11-23 01:45:10,572 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_15875b1f-11d9-4a0a-8257-a67598d93898/bin-2019/uautomizer/data/8f8ff72de/c3922098dab743a28b5e1812289c2fea [2018-11-23 01:45:10,574 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 01:45:10,575 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 01:45:10,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 01:45:10,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 01:45:10,579 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 01:45:10,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:45:10" (1/1) ... [2018-11-23 01:45:10,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e234a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:10, skipping insertion in model container [2018-11-23 01:45:10,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:45:10" (1/1) ... [2018-11-23 01:45:10,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 01:45:10,602 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 01:45:10,717 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 01:45:10,719 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 01:45:10,728 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 01:45:10,736 INFO L195 MainTranslator]: Completed translation [2018-11-23 01:45:10,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:10 WrapperNode [2018-11-23 01:45:10,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 01:45:10,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 01:45:10,737 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 01:45:10,737 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 01:45:10,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:10" (1/1) ... [2018-11-23 01:45:10,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:10" (1/1) ... [2018-11-23 01:45:10,754 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 01:45:10,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 01:45:10,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 01:45:10,755 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 01:45:10,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:10" (1/1) ... [2018-11-23 01:45:10,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:10" (1/1) ... [2018-11-23 01:45:10,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:10" (1/1) ... [2018-11-23 01:45:10,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:10" (1/1) ... [2018-11-23 01:45:10,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:10" (1/1) ... [2018-11-23 01:45:10,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:10" (1/1) ... [2018-11-23 01:45:10,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:10" (1/1) ... [2018-11-23 01:45:10,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 01:45:10,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 01:45:10,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 01:45:10,766 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 01:45:10,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_15875b1f-11d9-4a0a-8257-a67598d93898/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:45:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 01:45:10,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 01:45:10,922 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 01:45:10,922 INFO L280 CfgBuilder]: Removed 9 assue(true) statements. [2018-11-23 01:45:10,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:45:10 BoogieIcfgContainer [2018-11-23 01:45:10,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 01:45:10,923 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 01:45:10,923 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 01:45:10,925 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 01:45:10,925 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 01:45:10,926 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 01:45:10" (1/3) ... [2018-11-23 01:45:10,926 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@671b2fcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:45:10, skipping insertion in model container [2018-11-23 01:45:10,926 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 01:45:10,926 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:10" (2/3) ... [2018-11-23 01:45:10,927 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@671b2fcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:45:10, skipping insertion in model container [2018-11-23 01:45:10,927 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 01:45:10,927 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:45:10" (3/3) ... [2018-11-23 01:45:10,928 INFO L375 chiAutomizerObserver]: Analyzing ICFG cggmp2005b_true-unreach-call_true-termination.c.i [2018-11-23 01:45:10,960 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 01:45:10,960 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 01:45:10,960 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 01:45:10,961 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 01:45:10,961 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 01:45:10,961 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 01:45:10,961 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 01:45:10,961 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 01:45:10,961 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 01:45:10,969 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-11-23 01:45:10,987 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-23 01:45:10,987 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 01:45:10,987 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 01:45:10,991 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 01:45:10,991 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-23 01:45:10,991 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 01:45:10,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-11-23 01:45:10,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-23 01:45:10,992 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 01:45:10,992 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 01:45:10,992 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 01:45:10,992 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-23 01:45:10,997 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 8#L21-3true [2018-11-23 01:45:10,997 INFO L796 eck$LassoCheckResult]: Loop: 8#L21-3true assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 3#L17-2true assume !(main_~j~0 < 20); 13#L17-3true main_~k~0 := 4; 11#L21-2true assume !true; 8#L21-3true [2018-11-23 01:45:11,000 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:45:11,000 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-23 01:45:11,001 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:45:11,002 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:45:11,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:45:11,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:45:11,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:45:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:45:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:45:11,065 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:45:11,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1238515, now seen corresponding path program 1 times [2018-11-23 01:45:11,065 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:45:11,065 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:45:11,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:45:11,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:45:11,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:45:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:45:11,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:45:11,085 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:45:11,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-11-23 01:45:11,088 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-23 01:45:11,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 01:45:11,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 01:45:11,100 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2018-11-23 01:45:11,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:45:11,105 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2018-11-23 01:45:11,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 01:45:11,107 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2018-11-23 01:45:11,108 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-23 01:45:11,111 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 5 states and 7 transitions. [2018-11-23 01:45:11,112 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-23 01:45:11,112 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-23 01:45:11,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 7 transitions. [2018-11-23 01:45:11,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 01:45:11,113 INFO L705 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2018-11-23 01:45:11,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 7 transitions. [2018-11-23 01:45:11,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-11-23 01:45:11,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 01:45:11,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2018-11-23 01:45:11,134 INFO L728 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2018-11-23 01:45:11,134 INFO L608 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2018-11-23 01:45:11,134 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 01:45:11,134 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2018-11-23 01:45:11,134 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-23 01:45:11,134 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 01:45:11,134 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 01:45:11,135 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 01:45:11,135 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-23 01:45:11,135 INFO L794 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 35#L21-3 [2018-11-23 01:45:11,135 INFO L796 eck$LassoCheckResult]: Loop: 35#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 32#L17-2 assume !(main_~j~0 < 20); 33#L17-3 main_~k~0 := 4; 36#L21-2 assume !(main_~k~0 <= 3); 35#L21-3 [2018-11-23 01:45:11,135 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:45:11,135 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2018-11-23 01:45:11,135 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:45:11,136 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:45:11,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:45:11,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:45:11,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:45:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:45:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:45:11,140 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:45:11,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1238511, now seen corresponding path program 1 times [2018-11-23 01:45:11,141 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:45:11,141 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:45:11,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:45:11,141 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 01:45:11,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:45:11,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:45:11,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:45:11,149 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:45:11,149 INFO L82 PathProgramCache]: Analyzing trace with hash 29867662, now seen corresponding path program 1 times [2018-11-23 01:45:11,149 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:45:11,149 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:45:11,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:45:11,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:45:11,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:45:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:45:11,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:45:11,168 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:45:11,168 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 01:45:11,209 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 01:45:11,210 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 01:45:11,210 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 01:45:11,210 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 01:45:11,210 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 01:45:11,210 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:45:11,211 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 01:45:11,211 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 01:45:11,211 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration2_Loop [2018-11-23 01:45:11,211 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 01:45:11,211 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 01:45:11,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:45:11,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:45:11,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:45:11,283 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 01:45:11,284 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_15875b1f-11d9-4a0a-8257-a67598d93898/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:45:11,287 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 01:45:11,287 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 01:45:11,305 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 01:45:11,306 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=20} Honda state: {ULTIMATE.start_main_~j~0=20} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_15875b1f-11d9-4a0a-8257-a67598d93898/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:45:11,309 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 01:45:11,309 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_15875b1f-11d9-4a0a-8257-a67598d93898/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:45:11,336 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 01:45:11,336 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 01:45:11,355 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 01:45:11,356 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 01:45:11,356 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 01:45:11,356 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 01:45:11,356 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 01:45:11,356 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 01:45:11,356 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:45:11,356 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 01:45:11,357 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 01:45:11,357 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration2_Loop [2018-11-23 01:45:11,357 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 01:45:11,357 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 01:45:11,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:45:11,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:45:11,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:45:11,400 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 01:45:11,403 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 01:45:11,404 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 01:45:11,404 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 01:45:11,405 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 01:45:11,405 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 01:45:11,405 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 01:45:11,405 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 01:45:11,406 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 01:45:11,406 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 01:45:11,408 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 01:45:11,408 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 01:45:11,409 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 01:45:11,409 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 01:45:11,409 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 01:45:11,409 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 01:45:11,409 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 01:45:11,409 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 01:45:11,409 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 01:45:11,414 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 01:45:11,418 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 01:45:11,418 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 01:45:11,419 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 01:45:11,419 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 01:45:11,420 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 01:45:11,420 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 201 Supporting invariants [] [2018-11-23 01:45:11,421 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 01:45:11,441 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:45:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:45:11,447 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:45:11,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:45:11,453 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:45:11,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:45:11,478 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 01:45:11,479 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-11-23 01:45:11,505 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 4 states. [2018-11-23 01:45:11,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 01:45:11,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 01:45:11,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-11-23 01:45:11,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 1 letters. Loop has 4 letters. [2018-11-23 01:45:11,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:45:11,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-23 01:45:11,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:45:11,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 1 letters. Loop has 8 letters. [2018-11-23 01:45:11,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:45:11,510 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 20 transitions. [2018-11-23 01:45:11,512 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2018-11-23 01:45:11,513 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 19 transitions. [2018-11-23 01:45:11,513 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-23 01:45:11,513 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-23 01:45:11,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 19 transitions. [2018-11-23 01:45:11,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 01:45:11,514 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2018-11-23 01:45:11,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 19 transitions. [2018-11-23 01:45:11,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2018-11-23 01:45:11,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-11-23 01:45:11,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 16 transitions. [2018-11-23 01:45:11,516 INFO L728 BuchiCegarLoop]: Abstraction has 10 states and 16 transitions. [2018-11-23 01:45:11,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 01:45:11,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 01:45:11,517 INFO L87 Difference]: Start difference. First operand 10 states and 16 transitions. Second operand 3 states. [2018-11-23 01:45:11,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:45:11,526 INFO L93 Difference]: Finished difference Result 11 states and 18 transitions. [2018-11-23 01:45:11,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 01:45:11,526 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 18 transitions. [2018-11-23 01:45:11,527 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2018-11-23 01:45:11,527 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 18 transitions. [2018-11-23 01:45:11,527 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-23 01:45:11,527 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-23 01:45:11,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 18 transitions. [2018-11-23 01:45:11,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 01:45:11,528 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 18 transitions. [2018-11-23 01:45:11,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 18 transitions. [2018-11-23 01:45:11,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-23 01:45:11,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-23 01:45:11,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 18 transitions. [2018-11-23 01:45:11,529 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 18 transitions. [2018-11-23 01:45:11,529 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 18 transitions. [2018-11-23 01:45:11,529 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-23 01:45:11,529 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 18 transitions. [2018-11-23 01:45:11,529 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2018-11-23 01:45:11,530 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 01:45:11,530 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 01:45:11,530 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-23 01:45:11,530 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 01:45:11,530 INFO L794 eck$LassoCheckResult]: Stem: 111#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 112#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 113#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 107#L17-2 [2018-11-23 01:45:11,530 INFO L796 eck$LassoCheckResult]: Loop: 107#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 107#L17-2 [2018-11-23 01:45:11,530 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:45:11,531 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2018-11-23 01:45:11,531 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:45:11,531 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:45:11,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:45:11,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:45:11,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:45:11,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:45:11,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:45:11,541 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:45:11,542 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2018-11-23 01:45:11,542 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:45:11,542 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:45:11,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:45:11,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:45:11,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:45:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:45:11,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:45:11,545 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:45:11,545 INFO L82 PathProgramCache]: Analyzing trace with hash 963530, now seen corresponding path program 2 times [2018-11-23 01:45:11,546 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:45:11,546 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:45:11,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:45:11,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:45:11,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:45:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:45:11,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:45:11,602 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 01:45:11,603 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 01:45:11,603 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 01:45:11,603 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 01:45:11,603 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 01:45:11,603 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:45:11,603 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 01:45:11,603 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 01:45:11,603 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration3_Lasso [2018-11-23 01:45:11,603 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 01:45:11,603 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 01:45:11,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:45:11,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:45:11,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:45:11,658 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 01:45:11,658 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_15875b1f-11d9-4a0a-8257-a67598d93898/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:45:11,660 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 01:45:11,660 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_15875b1f-11d9-4a0a-8257-a67598d93898/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:45:11,677 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 01:45:11,677 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 01:45:12,082 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 01:45:12,084 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 01:45:12,084 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 01:45:12,084 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 01:45:12,084 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 01:45:12,084 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 01:45:12,084 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:45:12,084 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 01:45:12,084 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 01:45:12,084 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration3_Lasso [2018-11-23 01:45:12,084 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 01:45:12,084 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 01:45:12,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:45:12,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:45:12,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:45:12,130 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 01:45:12,131 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 01:45:12,131 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 01:45:12,131 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 01:45:12,132 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 01:45:12,132 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 01:45:12,132 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 01:45:12,134 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 01:45:12,135 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 01:45:12,156 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 01:45:12,173 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-23 01:45:12,173 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-23 01:45:12,174 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 01:45:12,176 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-23 01:45:12,176 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 01:45:12,176 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 39 Supporting invariants [1*ULTIMATE.start_main_~i~0 - 1 >= 0] [2018-11-23 01:45:12,185 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-23 01:45:12,217 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:45:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:45:12,221 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:45:12,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:45:12,233 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:45:12,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:45:12,234 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 1 loop predicates [2018-11-23 01:45:12,234 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 18 transitions. cyclomatic complexity: 10 Second operand 4 states. [2018-11-23 01:45:12,283 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 18 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 20 states and 33 transitions. Complement of second has 6 states. [2018-11-23 01:45:12,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 01:45:12,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 01:45:12,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2018-11-23 01:45:12,286 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-23 01:45:12,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:45:12,286 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 4 letters. Loop has 1 letters. [2018-11-23 01:45:12,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:45:12,286 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-23 01:45:12,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:45:12,286 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 33 transitions. [2018-11-23 01:45:12,287 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 01:45:12,288 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 17 states and 27 transitions. [2018-11-23 01:45:12,288 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-23 01:45:12,288 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-23 01:45:12,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 27 transitions. [2018-11-23 01:45:12,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 01:45:12,289 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 27 transitions. [2018-11-23 01:45:12,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 27 transitions. [2018-11-23 01:45:12,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2018-11-23 01:45:12,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-23 01:45:12,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 26 transitions. [2018-11-23 01:45:12,291 INFO L728 BuchiCegarLoop]: Abstraction has 16 states and 26 transitions. [2018-11-23 01:45:12,291 INFO L608 BuchiCegarLoop]: Abstraction has 16 states and 26 transitions. [2018-11-23 01:45:12,291 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-23 01:45:12,291 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 26 transitions. [2018-11-23 01:45:12,291 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 01:45:12,292 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 01:45:12,292 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 01:45:12,292 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-23 01:45:12,292 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 01:45:12,292 INFO L794 eck$LassoCheckResult]: Stem: 186#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 187#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 188#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 183#L17-2 assume !(main_~j~0 < 20); 184#L17-3 main_~k~0 := 4; 191#L21-2 [2018-11-23 01:45:12,292 INFO L796 eck$LassoCheckResult]: Loop: 191#L21-2 assume !!(main_~k~0 <= 3);main_~k~0 := 1 + main_~k~0; 191#L21-2 [2018-11-23 01:45:12,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:45:12,293 INFO L82 PathProgramCache]: Analyzing trace with hash 29869391, now seen corresponding path program 1 times [2018-11-23 01:45:12,293 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:45:12,293 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:45:12,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:45:12,294 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 01:45:12,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:45:12,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:45:12,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:45:12,336 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 01:45:12,336 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_15875b1f-11d9-4a0a-8257-a67598d93898/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 01:45:12,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:45:12,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:45:12,348 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:45:12,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:45:12,393 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 01:45:12,393 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-11-23 01:45:12,393 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-23 01:45:12,393 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:45:12,393 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 1 times [2018-11-23 01:45:12,394 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:45:12,394 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:45:12,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:45:12,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:45:12,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:45:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:45:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:45:12,405 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 01:45:12,406 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 01:45:12,406 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 01:45:12,406 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 01:45:12,406 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 01:45:12,406 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:45:12,407 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 01:45:12,407 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 01:45:12,407 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration4_Loop [2018-11-23 01:45:12,407 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 01:45:12,407 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 01:45:12,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:45:12,422 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 01:45:12,422 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_15875b1f-11d9-4a0a-8257-a67598d93898/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:45:12,432 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 01:45:12,432 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_15875b1f-11d9-4a0a-8257-a67598d93898/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:45:12,448 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 01:45:12,449 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 01:45:12,465 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 01:45:12,466 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 01:45:12,466 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 01:45:12,467 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 01:45:12,467 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 01:45:12,467 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 01:45:12,467 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:45:12,467 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 01:45:12,467 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 01:45:12,467 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration4_Loop [2018-11-23 01:45:12,467 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 01:45:12,467 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 01:45:12,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:45:12,481 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 01:45:12,481 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 01:45:12,481 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 01:45:12,482 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 01:45:12,482 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 01:45:12,482 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 01:45:12,482 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 01:45:12,482 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 01:45:12,483 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 01:45:12,483 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 01:45:12,485 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 01:45:12,487 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 01:45:12,487 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 01:45:12,487 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 01:45:12,488 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 01:45:12,488 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 01:45:12,488 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = -2*ULTIMATE.start_main_~k~0 + 7 Supporting invariants [] [2018-11-23 01:45:12,489 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 01:45:12,501 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:45:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:45:12,505 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:45:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:45:12,507 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:45:12,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:45:12,508 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-23 01:45:12,508 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 26 transitions. cyclomatic complexity: 14 Second operand 2 states. [2018-11-23 01:45:12,518 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 26 transitions. cyclomatic complexity: 14. Second operand 2 states. Result 47 states and 75 transitions. Complement of second has 5 states. [2018-11-23 01:45:12,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 01:45:12,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 01:45:12,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-11-23 01:45:12,519 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 1 letters. [2018-11-23 01:45:12,519 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:45:12,520 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 1 letters. [2018-11-23 01:45:12,520 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:45:12,520 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-23 01:45:12,520 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:45:12,520 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 75 transitions. [2018-11-23 01:45:12,523 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 01:45:12,524 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 31 states and 51 transitions. [2018-11-23 01:45:12,524 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-23 01:45:12,524 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-23 01:45:12,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 51 transitions. [2018-11-23 01:45:12,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 01:45:12,524 INFO L705 BuchiCegarLoop]: Abstraction has 31 states and 51 transitions. [2018-11-23 01:45:12,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 51 transitions. [2018-11-23 01:45:12,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 16. [2018-11-23 01:45:12,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-23 01:45:12,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 25 transitions. [2018-11-23 01:45:12,526 INFO L728 BuchiCegarLoop]: Abstraction has 16 states and 25 transitions. [2018-11-23 01:45:12,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 01:45:12,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-23 01:45:12,526 INFO L87 Difference]: Start difference. First operand 16 states and 25 transitions. Second operand 8 states. [2018-11-23 01:45:12,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:45:12,548 INFO L93 Difference]: Finished difference Result 17 states and 26 transitions. [2018-11-23 01:45:12,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 01:45:12,549 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 26 transitions. [2018-11-23 01:45:12,549 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 01:45:12,550 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 26 transitions. [2018-11-23 01:45:12,550 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-23 01:45:12,550 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-23 01:45:12,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 26 transitions. [2018-11-23 01:45:12,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 01:45:12,550 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2018-11-23 01:45:12,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 26 transitions. [2018-11-23 01:45:12,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-23 01:45:12,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-23 01:45:12,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2018-11-23 01:45:12,552 INFO L728 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2018-11-23 01:45:12,552 INFO L608 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2018-11-23 01:45:12,552 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-23 01:45:12,552 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 26 transitions. [2018-11-23 01:45:12,552 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 01:45:12,552 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 01:45:12,552 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 01:45:12,553 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1] [2018-11-23 01:45:12,553 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 01:45:12,553 INFO L794 eck$LassoCheckResult]: Stem: 342#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 343#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 340#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 341#L17-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 351#L17-2 assume !(main_~j~0 < 20); 348#L17-3 main_~k~0 := 4; 347#L21-2 assume !(main_~k~0 <= 3); 344#L21-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 345#L17-2 assume !(main_~j~0 < 20); 338#L17-3 main_~k~0 := 4; 346#L21-2 [2018-11-23 01:45:12,553 INFO L796 eck$LassoCheckResult]: Loop: 346#L21-2 assume !!(main_~k~0 <= 3);main_~k~0 := 1 + main_~k~0; 346#L21-2 [2018-11-23 01:45:12,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:45:12,553 INFO L82 PathProgramCache]: Analyzing trace with hash 352026178, now seen corresponding path program 1 times [2018-11-23 01:45:12,553 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:45:12,554 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:45:12,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:45:12,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:45:12,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:45:12,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:45:12,582 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 01:45:12,583 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 01:45:12,583 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_15875b1f-11d9-4a0a-8257-a67598d93898/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 01:45:12,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:45:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:45:12,597 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:45:12,629 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 01:45:12,643 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 01:45:12,644 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-11-23 01:45:12,644 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-23 01:45:12,644 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:45:12,644 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 2 times [2018-11-23 01:45:12,644 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:45:12,644 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:45:12,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:45:12,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:45:12,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:45:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:45:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 01:45:12,661 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 01:45:12,661 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 01:45:12,661 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 01:45:12,661 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 01:45:12,662 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 01:45:12,662 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:45:12,662 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 01:45:12,662 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 01:45:12,662 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration5_Loop [2018-11-23 01:45:12,662 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 01:45:12,662 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 01:45:12,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:45:12,675 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 01:45:12,675 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_15875b1f-11d9-4a0a-8257-a67598d93898/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:45:12,680 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 01:45:12,680 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_15875b1f-11d9-4a0a-8257-a67598d93898/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:45:12,707 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 01:45:12,708 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 01:45:12,723 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 01:45:12,725 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 01:45:12,725 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 01:45:12,725 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 01:45:12,725 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 01:45:12,725 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 01:45:12,725 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 01:45:12,725 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 01:45:12,726 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 01:45:12,726 INFO L131 ssoRankerPreferences]: Filename of dumped script: cggmp2005b_true-unreach-call_true-termination.c.i_Iteration5_Loop [2018-11-23 01:45:12,726 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 01:45:12,726 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 01:45:12,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 01:45:12,737 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 01:45:12,737 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 01:45:12,737 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 01:45:12,738 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 01:45:12,738 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 01:45:12,738 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 01:45:12,738 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 01:45:12,738 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 01:45:12,738 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 01:45:12,739 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 01:45:12,740 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 01:45:12,741 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 01:45:12,741 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 01:45:12,741 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 01:45:12,741 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 01:45:12,742 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 01:45:12,742 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = -2*ULTIMATE.start_main_~k~0 + 7 Supporting invariants [] [2018-11-23 01:45:12,742 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 01:45:12,759 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:45:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:45:12,767 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:45:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:45:12,771 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:45:12,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:45:12,771 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-23 01:45:12,771 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13 Second operand 2 states. [2018-11-23 01:45:12,779 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 43 states and 68 transitions. Complement of second has 5 states. [2018-11-23 01:45:12,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 01:45:12,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 01:45:12,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-11-23 01:45:12,780 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 10 letters. Loop has 1 letters. [2018-11-23 01:45:12,780 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:45:12,780 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 01:45:12,787 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:45:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:45:12,791 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:45:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:45:12,794 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:45:12,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:45:12,795 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-23 01:45:12,795 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13 Second operand 2 states. [2018-11-23 01:45:12,801 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 43 states and 68 transitions. Complement of second has 5 states. [2018-11-23 01:45:12,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 01:45:12,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 01:45:12,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-11-23 01:45:12,804 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 10 letters. Loop has 1 letters. [2018-11-23 01:45:12,804 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:45:12,804 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 01:45:12,813 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:45:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:45:12,817 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:45:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:45:12,820 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 01:45:12,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:45:12,820 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 1 loop predicates [2018-11-23 01:45:12,820 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13 Second operand 2 states. [2018-11-23 01:45:12,828 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 32 states and 48 transitions. Complement of second has 4 states. [2018-11-23 01:45:12,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 01:45:12,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 01:45:12,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2018-11-23 01:45:12,829 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 10 letters. Loop has 1 letters. [2018-11-23 01:45:12,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:45:12,829 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 11 letters. Loop has 1 letters. [2018-11-23 01:45:12,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:45:12,830 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 10 letters. Loop has 2 letters. [2018-11-23 01:45:12,830 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 01:45:12,830 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 48 transitions. [2018-11-23 01:45:12,831 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 01:45:12,831 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2018-11-23 01:45:12,831 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 01:45:12,831 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 01:45:12,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 01:45:12,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 01:45:12,831 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 01:45:12,831 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 01:45:12,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 01:45:12,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-23 01:45:12,832 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 9 states. [2018-11-23 01:45:12,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:45:12,832 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 01:45:12,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 01:45:12,832 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-23 01:45:12,832 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 01:45:12,832 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 01:45:12,833 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 01:45:12,833 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 01:45:12,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 01:45:12,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 01:45:12,833 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 01:45:12,833 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 01:45:12,833 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 01:45:12,833 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-23 01:45:12,833 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 01:45:12,833 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 01:45:12,833 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 01:45:12,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 01:45:12 BoogieIcfgContainer [2018-11-23 01:45:12,838 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 01:45:12,839 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 01:45:12,839 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 01:45:12,839 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 01:45:12,839 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:45:10" (3/4) ... [2018-11-23 01:45:12,841 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 01:45:12,841 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 01:45:12,842 INFO L168 Benchmark]: Toolchain (without parser) took 2267.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 959.1 MB in the beginning and 897.1 MB in the end (delta: 62.0 MB). Peak memory consumption was 211.5 MB. Max. memory is 11.5 GB. [2018-11-23 01:45:12,843 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 01:45:12,843 INFO L168 Benchmark]: CACSL2BoogieTranslator took 161.08 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 01:45:12,844 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.24 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 01:45:12,844 INFO L168 Benchmark]: Boogie Preprocessor took 10.86 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 01:45:12,845 INFO L168 Benchmark]: RCFGBuilder took 156.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -181.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-23 01:45:12,845 INFO L168 Benchmark]: BuchiAutomizer took 1915.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 897.1 MB in the end (delta: 230.1 MB). Peak memory consumption was 230.1 MB. Max. memory is 11.5 GB. [2018-11-23 01:45:12,846 INFO L168 Benchmark]: Witness Printer took 2.95 ms. Allocated memory is still 1.2 GB. Free memory is still 897.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 01:45:12,847 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 161.08 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 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 17.24 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.86 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 156.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -181.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1915.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 897.1 MB in the end (delta: 230.1 MB). Peak memory consumption was 230.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.95 ms. Allocated memory is still 1.2 GB. Free memory is still 897.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 8 terminating modules (4 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * i + 201 and consists of 3 locations. One deterministic module has affine ranking function -2 * j + 39 and consists of 5 locations. One deterministic module has affine ranking function -2 * k + 7 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * k + 7 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 17 states and ocurred in iteration 4. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 72 SDtfs, 45 SDslu, 34 SDs, 0 SdLazy, 44 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso1 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf98 lsp87 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq167 hnf93 smp100 dnf100 smp100 tf109 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 45ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 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...