./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive/Addition03_true-unreach-call_true-no-overflow_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/Addition03_true-unreach-call_true-no-overflow_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/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 dc212c6f03bbd9a964d699fa8baa949beea27f48 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 00:30:17,801 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 00:30:17,802 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 00:30:17,808 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 00:30:17,808 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 00:30:17,809 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 00:30:17,809 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 00:30:17,810 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 00:30:17,811 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 00:30:17,811 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 00:30:17,812 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 00:30:17,812 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 00:30:17,812 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 00:30:17,813 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 00:30:17,813 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 00:30:17,814 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 00:30:17,814 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 00:30:17,815 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 00:30:17,816 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 00:30:17,817 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 00:30:17,817 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 00:30:17,818 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 00:30:17,819 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 00:30:17,819 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 00:30:17,819 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 00:30:17,820 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 00:30:17,820 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 00:30:17,821 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 00:30:17,821 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 00:30:17,822 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 00:30:17,822 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 00:30:17,822 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 00:30:17,822 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 00:30:17,823 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 00:30:17,823 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 00:30:17,824 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 00:30:17,824 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-09 00:30:17,831 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 00:30:17,832 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 00:30:17,832 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 00:30:17,832 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 00:30:17,833 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 00:30:17,833 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-09 00:30:17,833 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-09 00:30:17,833 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-09 00:30:17,833 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-09 00:30:17,833 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-09 00:30:17,833 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-09 00:30:17,833 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 00:30:17,834 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 00:30:17,834 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 00:30:17,834 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 00:30:17,834 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 00:30:17,834 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 00:30:17,834 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-09 00:30:17,834 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-09 00:30:17,834 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-09 00:30:17,834 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 00:30:17,835 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 00:30:17,835 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-09 00:30:17,835 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 00:30:17,835 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-09 00:30:17,835 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 00:30:17,835 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 00:30:17,835 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-09 00:30:17,836 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 00:30:17,836 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 00:30:17,836 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-09 00:30:17,836 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-09 00:30:17,836 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_a7c957ce-a66a-40af-babb-b6c5350f8cd9/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 -> dc212c6f03bbd9a964d699fa8baa949beea27f48 [2018-12-09 00:30:17,853 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 00:30:17,860 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 00:30:17,862 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 00:30:17,863 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 00:30:17,863 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 00:30:17,863 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/../../sv-benchmarks/c/recursive/Addition03_true-unreach-call_true-no-overflow_true-termination.c [2018-12-09 00:30:17,897 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/data/8a208e422/c39710ba38b84a52bca02f34a41cf4e4/FLAGfad9fadee [2018-12-09 00:30:18,233 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 00:30:18,234 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/sv-benchmarks/c/recursive/Addition03_true-unreach-call_true-no-overflow_true-termination.c [2018-12-09 00:30:18,237 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/data/8a208e422/c39710ba38b84a52bca02f34a41cf4e4/FLAGfad9fadee [2018-12-09 00:30:18,632 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/data/8a208e422/c39710ba38b84a52bca02f34a41cf4e4 [2018-12-09 00:30:18,634 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 00:30:18,635 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 00:30:18,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 00:30:18,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 00:30:18,638 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 00:30:18,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:30:18" (1/1) ... [2018-12-09 00:30:18,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56acabfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:30:18, skipping insertion in model container [2018-12-09 00:30:18,641 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:30:18" (1/1) ... [2018-12-09 00:30:18,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 00:30:18,656 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 00:30:18,741 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:30:18,743 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 00:30:18,753 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:30:18,760 INFO L195 MainTranslator]: Completed translation [2018-12-09 00:30:18,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:30:18 WrapperNode [2018-12-09 00:30:18,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 00:30:18,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 00:30:18,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 00:30:18,761 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 00:30:18,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:30:18" (1/1) ... [2018-12-09 00:30:18,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:30:18" (1/1) ... [2018-12-09 00:30:18,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 00:30:18,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 00:30:18,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 00:30:18,779 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 00:30:18,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:30:18" (1/1) ... [2018-12-09 00:30:18,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:30:18" (1/1) ... [2018-12-09 00:30:18,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:30:18" (1/1) ... [2018-12-09 00:30:18,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:30:18" (1/1) ... [2018-12-09 00:30:18,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:30:18" (1/1) ... [2018-12-09 00:30:18,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:30:18" (1/1) ... [2018-12-09 00:30:18,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:30:18" (1/1) ... [2018-12-09 00:30:18,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 00:30:18,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 00:30:18,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 00:30:18,789 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 00:30:18,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:30:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:18,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 00:30:18,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 00:30:18,853 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2018-12-09 00:30:18,853 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2018-12-09 00:30:18,940 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 00:30:18,940 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-09 00:30:18,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:30:18 BoogieIcfgContainer [2018-12-09 00:30:18,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 00:30:18,941 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-09 00:30:18,941 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-09 00:30:18,944 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-09 00:30:18,944 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 00:30:18,944 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.12 12:30:18" (1/3) ... [2018-12-09 00:30:18,945 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6faa5933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 12:30:18, skipping insertion in model container [2018-12-09 00:30:18,945 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 00:30:18,945 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:30:18" (2/3) ... [2018-12-09 00:30:18,945 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6faa5933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 12:30:18, skipping insertion in model container [2018-12-09 00:30:18,945 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 00:30:18,945 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:30:18" (3/3) ... [2018-12-09 00:30:18,946 INFO L375 chiAutomizerObserver]: Analyzing ICFG Addition03_true-unreach-call_true-no-overflow_true-termination.c [2018-12-09 00:30:18,980 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 00:30:18,980 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-09 00:30:18,980 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-09 00:30:18,980 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-09 00:30:18,980 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 00:30:18,980 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 00:30:18,981 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-09 00:30:18,981 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 00:30:18,981 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-09 00:30:18,989 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2018-12-09 00:30:19,004 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-12-09 00:30:19,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 00:30:19,005 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 00:30:19,009 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-09 00:30:19,010 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-12-09 00:30:19,010 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-09 00:30:19,010 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2018-12-09 00:30:19,011 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-12-09 00:30:19,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 00:30:19,011 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 00:30:19,011 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-09 00:30:19,011 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-12-09 00:30:19,016 INFO L794 eck$LassoCheckResult]: Stem: 14#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_~m~0, main_~n~0, main_~result~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 8#L29true call main_#t~ret4 := addition(main_~m~0, main_~n~0);< 13#additionENTRYtrue [2018-12-09 00:30:19,017 INFO L796 eck$LassoCheckResult]: Loop: 13#additionENTRYtrue ~m := #in~m;~n := #in~n; 16#L14true assume !(0 == ~n); 11#L17true assume ~n > 0; 9#L18true call #t~ret0 := addition(1 + ~m, ~n - 1);< 13#additionENTRYtrue [2018-12-09 00:30:19,020 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:30:19,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1024, now seen corresponding path program 1 times [2018-12-09 00:30:19,022 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:30:19,022 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:30:19,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:30:19,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:30:19,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:30:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:30:19,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:30:19,075 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:30:19,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1358578, now seen corresponding path program 1 times [2018-12-09 00:30:19,075 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:30:19,076 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:30:19,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:30:19,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:30:19,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:30:19,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:30:19,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:30:19,087 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:30:19,087 INFO L82 PathProgramCache]: Analyzing trace with hash 946120561, now seen corresponding path program 1 times [2018-12-09 00:30:19,087 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:30:19,087 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:30:19,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:30:19,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:30:19,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:30:19,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:30:19,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:30:19,169 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 00:30:19,169 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 00:30:19,170 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 00:30:19,170 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 00:30:19,170 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 00:30:19,170 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:19,170 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 00:30:19,170 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 00:30:19,170 INFO L131 ssoRankerPreferences]: Filename of dumped script: Addition03_true-unreach-call_true-no-overflow_true-termination.c_Iteration1_Loop [2018-12-09 00:30:19,170 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 00:30:19,170 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 00:30:19,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:19,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:19,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:19,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:19,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:19,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:19,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:19,254 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 00:30:19,255 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:19,258 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:30:19,258 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:30:19,263 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 00:30:19,263 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_~m=0} Honda state: {addition_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:19,287 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:30:19,287 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:30:19,289 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 00:30:19,289 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret1=0} Honda state: {addition_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:19,304 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:30:19,304 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:30:19,306 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 00:30:19,307 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret0=0} Honda state: {addition_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:19,323 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:30:19,323 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:19,340 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 00:30:19,340 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:30:19,349 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 00:30:19,349 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#in~m=0} Honda state: {addition_#in~m=0} Generalized eigenvectors: [{addition_#in~m=5}, {addition_#in~m=4}, {addition_#in~m=-8}] Lambdas: [1, 3, 1] Nus: [0, 1] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:19,364 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:30:19,364 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:30:19,366 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 00:30:19,367 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#res=0} Honda state: {addition_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:19,382 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:30:19,382 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:19,398 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 00:30:19,398 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:30:19,416 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 00:30:19,417 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 00:30:19,417 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 00:30:19,417 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 00:30:19,417 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 00:30:19,417 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 00:30:19,417 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:19,417 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 00:30:19,417 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 00:30:19,417 INFO L131 ssoRankerPreferences]: Filename of dumped script: Addition03_true-unreach-call_true-no-overflow_true-termination.c_Iteration1_Loop [2018-12-09 00:30:19,417 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 00:30:19,417 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 00:30:19,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:19,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:19,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:19,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:19,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:19,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:19,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:19,463 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 00:30:19,466 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 00:30:19,467 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:30:19,468 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:30:19,468 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:30:19,469 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:30:19,469 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:30:19,469 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:30:19,470 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:30:19,470 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:30:19,473 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 00:30:19,473 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:30:19,473 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:30:19,474 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:30:19,474 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:30:19,474 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:30:19,474 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:30:19,474 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:30:19,474 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:30:19,475 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 00:30:19,476 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:30:19,476 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:30:19,476 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:30:19,476 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:30:19,476 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:30:19,476 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:30:19,477 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:30:19,477 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:30:19,478 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 00:30:19,478 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:30:19,478 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:30:19,478 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:30:19,479 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:30:19,479 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:30:19,479 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:30:19,479 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:30:19,479 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:30:19,482 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 00:30:19,482 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:30:19,482 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:30:19,483 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:30:19,483 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:30:19,483 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:30:19,483 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:30:19,483 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:30:19,484 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:30:19,484 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 00:30:19,485 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:30:19,485 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:30:19,485 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:30:19,485 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:30:19,485 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:30:19,485 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:30:19,486 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:30:19,486 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:30:19,487 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 00:30:19,487 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:30:19,487 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:30:19,488 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:30:19,488 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:30:19,488 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:30:19,488 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:30:19,488 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:30:19,488 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:30:19,491 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 00:30:19,493 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 00:30:19,493 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-09 00:30:19,494 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 00:30:19,494 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 00:30:19,494 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 00:30:19,495 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_#in~n) = 1*addition_#in~n Supporting invariants [] [2018-12-09 00:30:19,496 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 00:30:19,509 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:30:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:30:19,520 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:30:19,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:30:19,531 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:30:19,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:30:19,555 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-12-09 00:30:19,555 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states. Second operand 4 states. [2018-12-09 00:30:19,618 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states.. Second operand 4 states. Result 48 states and 66 transitions. Complement of second has 12 states. [2018-12-09 00:30:19,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-09 00:30:19,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 00:30:19,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2018-12-09 00:30:19,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2018-12-09 00:30:19,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:30:19,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2018-12-09 00:30:19,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:30:19,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 8 letters. [2018-12-09 00:30:19,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:30:19,624 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 66 transitions. [2018-12-09 00:30:19,626 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-12-09 00:30:19,629 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 24 states and 27 transitions. [2018-12-09 00:30:19,630 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2018-12-09 00:30:19,631 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2018-12-09 00:30:19,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 27 transitions. [2018-12-09 00:30:19,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 00:30:19,631 INFO L705 BuchiCegarLoop]: Abstraction has 24 states and 27 transitions. [2018-12-09 00:30:19,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 27 transitions. [2018-12-09 00:30:19,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 15. [2018-12-09 00:30:19,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-09 00:30:19,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2018-12-09 00:30:19,650 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2018-12-09 00:30:19,650 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2018-12-09 00:30:19,650 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-09 00:30:19,650 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2018-12-09 00:30:19,650 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-12-09 00:30:19,651 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 00:30:19,651 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 00:30:19,651 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-12-09 00:30:19,651 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-12-09 00:30:19,651 INFO L794 eck$LassoCheckResult]: Stem: 129#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_~m~0, main_~n~0, main_~result~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 123#L29 call main_#t~ret4 := addition(main_~m~0, main_~n~0);< 124#additionENTRY ~m := #in~m;~n := #in~n; 126#L14 assume !(0 == ~n); 130#L17 assume !(~n > 0); 119#L20 [2018-12-09 00:30:19,651 INFO L796 eck$LassoCheckResult]: Loop: 119#L20 assume ~n < 0; 120#L21 call #t~ret1 := addition(~m - 1, 1 + ~n);< 128#additionENTRY ~m := #in~m;~n := #in~n; 133#L14 assume !(0 == ~n); 132#L17 assume !(~n > 0); 119#L20 [2018-12-09 00:30:19,652 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:30:19,652 INFO L82 PathProgramCache]: Analyzing trace with hash 30520020, now seen corresponding path program 1 times [2018-12-09 00:30:19,652 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:30:19,652 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:30:19,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:30:19,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:30:19,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:30:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:30:19,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:30:19,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:30:19,659 INFO L82 PathProgramCache]: Analyzing trace with hash 54650730, now seen corresponding path program 1 times [2018-12-09 00:30:19,659 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:30:19,659 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:30:19,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:30:19,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:30:19,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:30:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:30:19,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:30:19,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:30:19,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1564606345, now seen corresponding path program 1 times [2018-12-09 00:30:19,664 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:30:19,665 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:30:19,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:30:19,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:30:19,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:30:19,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:30:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:30:19,735 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 00:30:19,735 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 00:30:19,735 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 00:30:19,735 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 00:30:19,735 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 00:30:19,735 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:19,736 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 00:30:19,736 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 00:30:19,736 INFO L131 ssoRankerPreferences]: Filename of dumped script: Addition03_true-unreach-call_true-no-overflow_true-termination.c_Iteration2_Loop [2018-12-09 00:30:19,736 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 00:30:19,736 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 00:30:19,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:19,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:19,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:19,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:19,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:19,791 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 00:30:19,791 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:19,793 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:30:19,793 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:30:19,796 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 00:30:19,796 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret1=0} Honda state: {addition_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:19,811 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:30:19,811 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:19,831 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 00:30:19,831 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:30:19,919 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 00:30:19,919 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#in~m=-8, addition_~m=-8} Honda state: {addition_#in~m=-8, addition_~m=-8} Generalized eigenvectors: [{addition_#in~m=7, addition_~m=-1}, {addition_#in~m=-8, addition_~m=0}, {addition_#in~m=0, addition_~m=0}] Lambdas: [1, 0, 15] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:19,935 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:30:19,935 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:30:19,937 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 00:30:19,937 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#res=0} Honda state: {addition_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:19,951 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:30:19,951 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:30:19,953 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 00:30:19,953 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret0=0} Honda state: {addition_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:19,967 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:30:19,967 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:19,986 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 00:30:19,986 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:30:27,459 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 00:30:27,461 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 00:30:27,461 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 00:30:27,461 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 00:30:27,461 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 00:30:27,461 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 00:30:27,461 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:27,461 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 00:30:27,461 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 00:30:27,461 INFO L131 ssoRankerPreferences]: Filename of dumped script: Addition03_true-unreach-call_true-no-overflow_true-termination.c_Iteration2_Loop [2018-12-09 00:30:27,461 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 00:30:27,462 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 00:30:27,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:27,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:27,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:27,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:27,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:27,514 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 00:30:27,515 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 00:30:27,515 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:30:27,516 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:30:27,516 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:30:27,516 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:30:27,516 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:30:27,516 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:30:27,516 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:30:27,517 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:30:27,517 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 00:30:27,518 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:30:27,518 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:30:27,518 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:30:27,518 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:30:27,518 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:30:27,518 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:30:27,519 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:30:27,519 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:30:27,519 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 00:30:27,520 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:30:27,520 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:30:27,520 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:30:27,521 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:30:27,521 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:30:27,521 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:30:27,521 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:30:27,521 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:30:27,524 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 00:30:27,524 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:30:27,525 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:30:27,525 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:30:27,525 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:30:27,525 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:30:27,525 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:30:27,525 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:30:27,525 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:30:27,526 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 00:30:27,526 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:30:27,527 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:30:27,527 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:30:27,527 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:30:27,527 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:30:27,527 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:30:27,527 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:30:27,527 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:30:27,530 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 00:30:27,533 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 00:30:27,533 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-09 00:30:27,533 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 00:30:27,533 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 00:30:27,533 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 00:30:27,533 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_~n) = -1*addition_~n Supporting invariants [] [2018-12-09 00:30:27,534 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 00:30:27,544 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:30:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:30:27,551 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:30:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:30:27,559 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:30:27,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:30:27,573 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-12-09 00:30:27,573 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand 5 states. [2018-12-09 00:30:27,602 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5. Second operand 5 states. Result 29 states and 34 transitions. Complement of second has 13 states. [2018-12-09 00:30:27,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2018-12-09 00:30:27,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-09 00:30:27,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2018-12-09 00:30:27,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 5 letters. [2018-12-09 00:30:27,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:30:27,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 10 letters. Loop has 5 letters. [2018-12-09 00:30:27,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:30:27,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 10 letters. [2018-12-09 00:30:27,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:30:27,605 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 34 transitions. [2018-12-09 00:30:27,605 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-12-09 00:30:27,606 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 28 states and 33 transitions. [2018-12-09 00:30:27,606 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2018-12-09 00:30:27,606 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2018-12-09 00:30:27,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 33 transitions. [2018-12-09 00:30:27,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 00:30:27,606 INFO L705 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2018-12-09 00:30:27,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 33 transitions. [2018-12-09 00:30:27,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2018-12-09 00:30:27,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-09 00:30:27,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2018-12-09 00:30:27,608 INFO L728 BuchiCegarLoop]: Abstraction has 25 states and 30 transitions. [2018-12-09 00:30:27,608 INFO L608 BuchiCegarLoop]: Abstraction has 25 states and 30 transitions. [2018-12-09 00:30:27,608 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-09 00:30:27,608 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 30 transitions. [2018-12-09 00:30:27,609 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-12-09 00:30:27,609 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 00:30:27,609 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 00:30:27,609 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2018-12-09 00:30:27,609 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-12-09 00:30:27,609 INFO L794 eck$LassoCheckResult]: Stem: 236#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_~m~0, main_~n~0, main_~result~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 234#L29 call main_#t~ret4 := addition(main_~m~0, main_~n~0);< 239#additionENTRY ~m := #in~m;~n := #in~n; 246#L14 assume !(0 == ~n); 249#L17 assume !(~n > 0); 232#L20 assume ~n < 0; 227#L21 call #t~ret1 := addition(~m - 1, 1 + ~n);< 226#additionENTRY ~m := #in~m;~n := #in~n; 228#L14 assume !(0 == ~n); 237#L17 assume ~n > 0; 240#L18 [2018-12-09 00:30:27,609 INFO L796 eck$LassoCheckResult]: Loop: 240#L18 call #t~ret0 := addition(1 + ~m, ~n - 1);< 241#additionENTRY ~m := #in~m;~n := #in~n; 250#L14 assume !(0 == ~n); 247#L17 assume ~n > 0; 240#L18 [2018-12-09 00:30:27,609 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:30:27,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1564606348, now seen corresponding path program 1 times [2018-12-09 00:30:27,610 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:30:27,610 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:30:27,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:30:27,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:30:27,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:30:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:30:27,637 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:30:27,638 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:30:27,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 00:30:27,640 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-12-09 00:30:27,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:30:27,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1950448, now seen corresponding path program 2 times [2018-12-09 00:30:27,640 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:30:27,640 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:30:27,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:30:27,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:30:27,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:30:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:30:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:30:27,699 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 00:30:27,699 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 00:30:27,699 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 00:30:27,699 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 00:30:27,699 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 00:30:27,700 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:27,700 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 00:30:27,700 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 00:30:27,700 INFO L131 ssoRankerPreferences]: Filename of dumped script: Addition03_true-unreach-call_true-no-overflow_true-termination.c_Iteration3_Loop [2018-12-09 00:30:27,700 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 00:30:27,700 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 00:30:27,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:27,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:27,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:27,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:27,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:27,733 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 00:30:27,733 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:27,735 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:30:27,735 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:27,753 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 00:30:27,753 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:30:27,870 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 00:30:27,870 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#in~m=-6, addition_~m=-6} Honda state: {addition_#in~m=-6, addition_~m=-6} Generalized eigenvectors: [{addition_#in~m=7, addition_~m=2}, {addition_#in~m=-5, addition_~m=0}, {addition_#in~m=-1, addition_~m=-1}] Lambdas: [1, 0, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:27,885 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:30:27,886 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:30:27,887 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 00:30:27,887 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret1=0} Honda state: {addition_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:27,902 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:30:27,902 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:30:27,904 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 00:30:27,904 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#res=0} Honda state: {addition_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:27,921 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:30:27,921 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:30:27,923 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 00:30:27,923 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret0=0} Honda state: {addition_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:27,938 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:30:27,938 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a7c957ce-a66a-40af-babb-b6c5350f8cd9/bin-2019/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:27,956 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 00:30:27,956 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:30:28,640 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 00:30:28,642 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 00:30:28,642 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 00:30:28,642 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 00:30:28,642 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 00:30:28,642 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 00:30:28,642 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:30:28,642 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 00:30:28,642 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 00:30:28,642 INFO L131 ssoRankerPreferences]: Filename of dumped script: Addition03_true-unreach-call_true-no-overflow_true-termination.c_Iteration3_Loop [2018-12-09 00:30:28,643 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 00:30:28,643 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 00:30:28,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:28,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:28,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:28,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:28,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:30:28,688 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 00:30:28,688 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 00:30:28,688 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:30:28,689 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:30:28,689 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:30:28,689 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:30:28,689 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:30:28,689 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:30:28,689 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:30:28,690 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:30:28,691 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 00:30:28,692 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:30:28,692 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:30:28,692 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:30:28,692 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:30:28,692 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:30:28,692 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:30:28,693 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:30:28,693 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:30:28,694 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 00:30:28,694 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:30:28,694 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:30:28,695 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:30:28,695 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:30:28,695 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:30:28,695 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:30:28,695 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:30:28,695 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:30:28,696 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 00:30:28,697 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 00:30:28,697 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:30:28,697 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:30:28,697 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:30:28,697 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:30:28,698 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:30:28,698 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:30:28,698 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:30:28,701 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 00:30:28,704 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 00:30:28,705 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-09 00:30:28,705 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 00:30:28,705 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 00:30:28,705 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 00:30:28,705 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_~n) = 1*addition_~n Supporting invariants [] [2018-12-09 00:30:28,706 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 00:30:28,726 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:30:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:30:28,735 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:30:28,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:30:28,740 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:30:28,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:30:28,753 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-12-09 00:30:28,753 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 30 transitions. cyclomatic complexity: 8 Second operand 4 states. [2018-12-09 00:30:28,773 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 30 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 62 states and 72 transitions. Complement of second has 9 states. [2018-12-09 00:30:28,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-09 00:30:28,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 00:30:28,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2018-12-09 00:30:28,774 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 4 letters. [2018-12-09 00:30:28,774 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:30:28,774 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 14 letters. Loop has 4 letters. [2018-12-09 00:30:28,774 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:30:28,774 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 8 letters. [2018-12-09 00:30:28,774 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:30:28,774 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 72 transitions. [2018-12-09 00:30:28,776 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-12-09 00:30:28,776 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 53 states and 63 transitions. [2018-12-09 00:30:28,776 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2018-12-09 00:30:28,776 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2018-12-09 00:30:28,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 63 transitions. [2018-12-09 00:30:28,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 00:30:28,777 INFO L705 BuchiCegarLoop]: Abstraction has 53 states and 63 transitions. [2018-12-09 00:30:28,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 63 transitions. [2018-12-09 00:30:28,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 46. [2018-12-09 00:30:28,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-12-09 00:30:28,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2018-12-09 00:30:28,779 INFO L728 BuchiCegarLoop]: Abstraction has 46 states and 55 transitions. [2018-12-09 00:30:28,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 00:30:28,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-09 00:30:28,781 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand 5 states. [2018-12-09 00:30:28,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:30:28,802 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2018-12-09 00:30:28,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 00:30:28,803 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 40 transitions. [2018-12-09 00:30:28,803 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-09 00:30:28,803 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 0 states and 0 transitions. [2018-12-09 00:30:28,803 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-09 00:30:28,803 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-09 00:30:28,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-09 00:30:28,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 00:30:28,804 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 00:30:28,804 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 00:30:28,804 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 00:30:28,804 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-09 00:30:28,804 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-09 00:30:28,804 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-09 00:30:28,804 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-09 00:30:28,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.12 12:30:28 BoogieIcfgContainer [2018-12-09 00:30:28,809 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-09 00:30:28,809 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 00:30:28,809 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 00:30:28,809 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 00:30:28,809 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:30:18" (3/4) ... [2018-12-09 00:30:28,811 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 00:30:28,811 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 00:30:28,812 INFO L168 Benchmark]: Toolchain (without parser) took 10177.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.3 MB). Free memory was 956.0 MB in the beginning and 1.2 GB in the end (delta: -211.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:30:28,813 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:30:28,813 INFO L168 Benchmark]: CACSL2BoogieTranslator took 125.05 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 00:30:28,813 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.82 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:30:28,813 INFO L168 Benchmark]: Boogie Preprocessor took 9.73 ms. Allocated memory is still 1.0 GB. Free memory was 945.3 MB in the beginning and 939.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 00:30:28,814 INFO L168 Benchmark]: RCFGBuilder took 151.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -164.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-09 00:30:28,814 INFO L168 Benchmark]: BuchiAutomizer took 9867.55 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 73.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -62.4 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. [2018-12-09 00:30:28,815 INFO L168 Benchmark]: Witness Printer took 2.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:30:28,816 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 125.05 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.3 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 17.82 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.73 ms. Allocated memory is still 1.0 GB. Free memory was 945.3 MB in the beginning and 939.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 151.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -164.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 9867.55 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 73.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -62.4 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. 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 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 4 locations. One deterministic module has affine ranking function -1 * n and consists of 5 locations. One deterministic module has affine ranking function n and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.8s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 9.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 19 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 25 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 33 SDtfs, 52 SDslu, 10 SDs, 0 SdLazy, 79 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq173 hnf92 smp91 dnf100 smp100 tf110 neg98 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 5ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 8.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...