./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive/Addition03-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/Addition03-1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/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 0.1.24-cad4683 [2019-10-22 09:00:48,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:48,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:48,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:48,597 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:48,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:48,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:48,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:48,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:48,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:48,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:48,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:48,614 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:48,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:48,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:48,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:48,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:48,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:48,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:48,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:48,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:48,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:48,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:48,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:48,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:48,632 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:48,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:48,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:48,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:48,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:48,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:48,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:48,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:48,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:48,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:48,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:48,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:48,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:48,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:48,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:48,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:48,640 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-10-22 09:00:48,651 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:48,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:48,652 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:48,652 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:48,652 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:48,653 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:00:48,653 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:00:48,653 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:00:48,653 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:00:48,653 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:00:48,653 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:00:48,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:48,654 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:00:48,654 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:00:48,654 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:00:48,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:00:48,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:48,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:00:48,655 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:00:48,655 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:00:48,655 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:00:48,655 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:00:48,655 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:00:48,655 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:48,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:00:48,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:48,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:48,656 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:00:48,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:48,656 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:00:48,657 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:00:48,657 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:00:48,657 INFO L138 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_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/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 [2019-10-22 09:00:48,686 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:48,698 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:48,701 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:48,703 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:48,705 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:48,706 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/uautomizer/../../sv-benchmarks/c/recursive/Addition03-1.c [2019-10-22 09:00:48,755 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/uautomizer/data/71bef27c7/ddba1b4b3339476db92552d623834a7e/FLAG7bfeca8e7 [2019-10-22 09:00:49,167 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:49,169 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/sv-benchmarks/c/recursive/Addition03-1.c [2019-10-22 09:00:49,175 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/uautomizer/data/71bef27c7/ddba1b4b3339476db92552d623834a7e/FLAG7bfeca8e7 [2019-10-22 09:00:49,562 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/uautomizer/data/71bef27c7/ddba1b4b3339476db92552d623834a7e [2019-10-22 09:00:49,564 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:49,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:00:49,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:49,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:49,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:49,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:49" (1/1) ... [2019-10-22 09:00:49,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f2d2514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:49, skipping insertion in model container [2019-10-22 09:00:49,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:49" (1/1) ... [2019-10-22 09:00:49,581 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:49,597 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:49,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:49,749 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:49,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:49,838 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:49,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:49 WrapperNode [2019-10-22 09:00:49,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:49,840 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:49,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:00:49,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:00:49,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:49" (1/1) ... [2019-10-22 09:00:49,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:49" (1/1) ... [2019-10-22 09:00:49,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:49,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:49,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:49,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:49,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:49" (1/1) ... [2019-10-22 09:00:49,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:49" (1/1) ... [2019-10-22 09:00:49,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:49" (1/1) ... [2019-10-22 09:00:49,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:49" (1/1) ... [2019-10-22 09:00:49,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:49" (1/1) ... [2019-10-22 09:00:49,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:49" (1/1) ... [2019-10-22 09:00:49,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:49" (1/1) ... [2019-10-22 09:00:49,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:49,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:49,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:49,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:49,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/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 [2019-10-22 09:00:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:49,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2019-10-22 09:00:49,939 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2019-10-22 09:00:50,069 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:50,069 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 09:00:50,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:50 BoogieIcfgContainer [2019-10-22 09:00:50,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:50,071 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:00:50,071 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:00:50,074 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:00:50,075 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:00:50,075 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:00:49" (1/3) ... [2019-10-22 09:00:50,076 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6eb72932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:00:50, skipping insertion in model container [2019-10-22 09:00:50,077 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:00:50,077 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:49" (2/3) ... [2019-10-22 09:00:50,077 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6eb72932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:00:50, skipping insertion in model container [2019-10-22 09:00:50,077 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:00:50,077 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:50" (3/3) ... [2019-10-22 09:00:50,079 INFO L371 chiAutomizerObserver]: Analyzing ICFG Addition03-1.c [2019-10-22 09:00:50,113 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:00:50,114 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:00:50,114 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:00:50,114 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:50,114 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:50,114 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:00:50,114 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:50,114 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:00:50,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-10-22 09:00:50,143 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-10-22 09:00:50,143 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:00:50,143 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:00:50,150 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 09:00:50,150 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-10-22 09:00:50,150 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:00:50,151 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-10-22 09:00:50,152 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-10-22 09:00:50,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:00:50,153 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:00:50,153 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 09:00:50,153 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-10-22 09:00:50,160 INFO L791 eck$LassoCheckResult]: Stem: 14#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_~m~0, main_~n~0, main_~result~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 8#L29true call main_#t~ret4 := addition(main_~m~0, main_~n~0);< 13#additionENTRYtrue [2019-10-22 09:00:50,160 INFO L793 eck$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 [2019-10-22 09:00:50,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:50,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1024, now seen corresponding path program 1 times [2019-10-22 09:00:50,174 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:50,174 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118312447] [2019-10-22 09:00:50,174 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:50,175 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:50,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:50,254 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:50,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:50,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1358578, now seen corresponding path program 1 times [2019-10-22 09:00:50,255 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:50,255 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989509144] [2019-10-22 09:00:50,255 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:50,256 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:50,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:50,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:50,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:50,275 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:50,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:50,276 INFO L82 PathProgramCache]: Analyzing trace with hash 946120561, now seen corresponding path program 1 times [2019-10-22 09:00:50,276 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:50,277 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356603369] [2019-10-22 09:00:50,277 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:50,277 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:50,277 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:50,290 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:50,401 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:00:50,402 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:00:50,402 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:00:50,402 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:00:50,402 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 09:00:50,402 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:00:50,402 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:00:50,402 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:00:50,403 INFO L131 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration1_Loop [2019-10-22 09:00:50,403 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:00:50,403 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:00:50,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:50,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:50,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:50,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:50,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:50,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:50,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:50,598 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:00:50,599 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/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 [2019-10-22 09:00:50,605 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:00:50,605 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:00:50,611 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:00:50,611 INFO L440 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_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/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 [2019-10-22 09:00:50,616 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:00:50,617 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:00:50,620 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:00:50,621 INFO L440 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_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 09:00:50,635 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:00:50,636 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:00:50,642 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:00:50,642 INFO L440 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_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/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 [2019-10-22 09:00:50,658 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:00:50,658 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/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 [2019-10-22 09:00:50,667 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:00:50,667 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:00:50,678 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:00:50,678 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#in~m=0} Honda state: {addition_#in~m=0} Generalized eigenvectors: [{addition_#in~m=4}, {addition_#in~m=0}, {addition_#in~m=-3}] Lambdas: [1, 5, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/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 [2019-10-22 09:00:50,684 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:00:50,684 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:00:50,686 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:00:50,687 INFO L440 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_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/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 [2019-10-22 09:00:50,693 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:00:50,693 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/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 [2019-10-22 09:00:50,704 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:00:50,704 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:00:50,712 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 09:00:50,716 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:00:50,716 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:00:50,716 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:00:50,717 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:00:50,717 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:00:50,717 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:00:50,717 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:00:50,717 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:00:50,717 INFO L131 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration1_Loop [2019-10-22 09:00:50,717 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:00:50,717 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:00:50,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:50,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:50,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:50,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:50,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:50,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:50,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:50,796 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:00:50,802 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:00:50,804 INFO L120 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 [2019-10-22 09:00:50,805 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:00:50,805 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:00:50,806 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:00:50,806 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:00:50,806 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:00:50,810 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:00:50,810 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:00:50,813 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:00:50,814 INFO L120 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 [2019-10-22 09:00:50,815 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:00:50,815 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:00:50,815 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:00:50,815 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:00:50,815 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:00:50,817 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:00:50,817 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:00:50,818 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:00:50,818 INFO L120 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 [2019-10-22 09:00:50,819 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:00:50,819 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:00:50,821 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:00:50,821 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:00:50,821 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:00:50,822 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:00:50,822 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:00:50,823 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:00:50,824 INFO L120 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 [2019-10-22 09:00:50,824 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:00:50,824 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:00:50,825 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:00:50,825 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:00:50,825 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:00:50,825 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:00:50,825 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:00:50,832 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:00:50,833 INFO L120 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 [2019-10-22 09:00:50,833 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:00:50,833 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:00:50,834 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:00:50,834 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:00:50,834 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:00:50,834 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:00:50,835 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:00:50,842 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:00:50,842 INFO L120 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 [2019-10-22 09:00:50,843 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:00:50,843 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:00:50,843 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:00:50,843 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:00:50,843 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:00:50,844 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:00:50,844 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:00:50,845 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:00:50,845 INFO L120 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 [2019-10-22 09:00:50,846 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:00:50,846 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:00:50,846 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:00:50,847 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:00:50,847 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:00:50,847 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:00:50,852 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:00:50,860 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:00:50,865 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:00:50,865 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 09:00:50,866 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:00:50,867 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 09:00:50,867 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:00:50,867 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_#in~n) = 1*addition_#in~n Supporting invariants [] [2019-10-22 09:00:50,870 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 09:00:50,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:50,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:00:50,915 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:50,940 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 09:00:50,941 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:50,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:50,986 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 [2019-10-22 09:00:50,988 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states. Second operand 4 states. [2019-10-22 09:00:51,124 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. [2019-10-22 09:00:51,127 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 [2019-10-22 09:00:51,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-10-22 09:00:51,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2019-10-22 09:00:51,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2019-10-22 09:00:51,134 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:00:51,134 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2019-10-22 09:00:51,134 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:00:51,134 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 8 letters. [2019-10-22 09:00:51,134 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:00:51,137 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 66 transitions. [2019-10-22 09:00:51,142 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-10-22 09:00:51,147 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 24 states and 27 transitions. [2019-10-22 09:00:51,150 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-10-22 09:00:51,150 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-10-22 09:00:51,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 27 transitions. [2019-10-22 09:00:51,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 09:00:51,152 INFO L688 BuchiCegarLoop]: Abstraction has 24 states and 27 transitions. [2019-10-22 09:00:51,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 27 transitions. [2019-10-22 09:00:51,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 15. [2019-10-22 09:00:51,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-22 09:00:51,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2019-10-22 09:00:51,182 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2019-10-22 09:00:51,183 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2019-10-22 09:00:51,183 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 09:00:51,183 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2019-10-22 09:00:51,185 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-10-22 09:00:51,185 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:00:51,185 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:00:51,185 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-10-22 09:00:51,185 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-10-22 09:00:51,186 INFO L791 eck$LassoCheckResult]: Stem: 129#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_~m~0, main_~n~0, main_~result~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 123#L29 call main_#t~ret4 := addition(main_~m~0, main_~n~0);< 124#additionENTRY ~m := #in~m;~n := #in~n; 126#L14 assume !(0 == ~n); 130#L17 assume !(~n > 0); 119#L20 [2019-10-22 09:00:51,186 INFO L793 eck$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 [2019-10-22 09:00:51,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:51,186 INFO L82 PathProgramCache]: Analyzing trace with hash 30520020, now seen corresponding path program 1 times [2019-10-22 09:00:51,186 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:51,187 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721702517] [2019-10-22 09:00:51,187 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:51,187 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:51,187 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:51,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:51,203 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:51,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:51,205 INFO L82 PathProgramCache]: Analyzing trace with hash 54650730, now seen corresponding path program 1 times [2019-10-22 09:00:51,205 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:51,206 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147297866] [2019-10-22 09:00:51,206 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:51,206 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:51,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:51,217 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:51,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:51,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1564606345, now seen corresponding path program 1 times [2019-10-22 09:00:51,217 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:51,218 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567479576] [2019-10-22 09:00:51,218 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:51,218 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:51,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:51,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:51,255 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:51,343 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:00:51,343 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:00:51,343 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:00:51,343 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:00:51,343 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 09:00:51,343 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:00:51,343 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:00:51,343 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:00:51,343 INFO L131 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration2_Loop [2019-10-22 09:00:51,343 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:00:51,344 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:00:51,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:51,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:51,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:51,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:51,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:00:51,407 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:00:51,408 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/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 [2019-10-22 09:00:51,420 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:00:51,420 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:00:51,423 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:00:51,424 INFO L440 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_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/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 [2019-10-22 09:00:51,430 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:00:51,430 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 09:00:51,450 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:00:51,451 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:00:51,628 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:00:51,628 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#in~m=-4, addition_~m=3} Honda state: {addition_#in~m=-4, addition_~m=3} Generalized eigenvectors: [{addition_#in~m=7, addition_~m=0}, {addition_#in~m=5, addition_~m=-1}, {addition_#in~m=-6, addition_~m=0}] Lambdas: [0, 1, 0] Nus: [0, 1] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 09:00:51,637 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:00:51,638 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:00:51,641 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:00:51,641 INFO L440 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_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 09:00:51,648 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:00:51,648 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:00:51,651 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:00:51,651 INFO L440 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_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 09:00:51,661 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:00:51,661 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 09:00:51,676 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:00:51,676 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:02,573 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 09:01:02,575 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:01:02,575 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:01:02,576 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:01:02,576 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:01:02,576 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:01:02,576 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:02,576 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:01:02,576 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:01:02,576 INFO L131 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration2_Loop [2019-10-22 09:01:02,576 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:01:02,576 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:01:02,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:02,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:02,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:02,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:02,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:02,669 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:01:02,670 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:01:02,670 INFO L120 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 [2019-10-22 09:01:02,671 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:02,671 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:02,671 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:02,671 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:02,671 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:02,672 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:02,672 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:02,676 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:02,678 INFO L120 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 [2019-10-22 09:01:02,678 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:02,678 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:02,678 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:02,679 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:02,679 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:02,679 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:02,679 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:02,680 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:02,680 INFO L120 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 [2019-10-22 09:01:02,681 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:02,681 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:02,681 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:02,681 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:02,682 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:02,682 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:02,682 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:02,697 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:02,697 INFO L120 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 [2019-10-22 09:01:02,698 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:02,698 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:02,698 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:02,698 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:02,698 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:02,699 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:02,699 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:02,700 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:02,702 INFO L120 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 [2019-10-22 09:01:02,705 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:02,705 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:02,705 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:02,705 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:02,705 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:02,706 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:02,706 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:02,715 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:01:02,718 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:01:02,719 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 09:01:02,719 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:01:02,719 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 09:01:02,719 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:01:02,720 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_~n) = -1*addition_~n Supporting invariants [] [2019-10-22 09:01:02,720 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 09:01:02,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:02,743 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 09:01:02,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:02,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:02,758 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 09:01:02,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:02,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:02,778 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 [2019-10-22 09:01:02,778 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand 5 states. [2019-10-22 09:01:02,826 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. [2019-10-22 09:01:02,828 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 [2019-10-22 09:01:02,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-10-22 09:01:02,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2019-10-22 09:01:02,829 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 5 letters. [2019-10-22 09:01:02,830 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:02,830 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 10 letters. Loop has 5 letters. [2019-10-22 09:01:02,830 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:02,830 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 10 letters. [2019-10-22 09:01:02,830 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:02,831 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 34 transitions. [2019-10-22 09:01:02,831 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-10-22 09:01:02,832 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 28 states and 33 transitions. [2019-10-22 09:01:02,833 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-10-22 09:01:02,833 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2019-10-22 09:01:02,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 33 transitions. [2019-10-22 09:01:02,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 09:01:02,833 INFO L688 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2019-10-22 09:01:02,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 33 transitions. [2019-10-22 09:01:02,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2019-10-22 09:01:02,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-10-22 09:01:02,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2019-10-22 09:01:02,836 INFO L711 BuchiCegarLoop]: Abstraction has 25 states and 30 transitions. [2019-10-22 09:01:02,836 INFO L591 BuchiCegarLoop]: Abstraction has 25 states and 30 transitions. [2019-10-22 09:01:02,836 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 09:01:02,836 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 30 transitions. [2019-10-22 09:01:02,837 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-10-22 09:01:02,837 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:02,837 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:02,838 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:02,838 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-10-22 09:01:02,838 INFO L791 eck$LassoCheckResult]: Stem: 236#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_~m~0, main_~n~0, main_~result~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 234#L29 call main_#t~ret4 := addition(main_~m~0, main_~n~0);< 239#additionENTRY ~m := #in~m;~n := #in~n; 246#L14 assume !(0 == ~n); 249#L17 assume !(~n > 0); 232#L20 assume ~n < 0; 227#L21 call #t~ret1 := addition(~m - 1, 1 + ~n);< 226#additionENTRY ~m := #in~m;~n := #in~n; 228#L14 assume !(0 == ~n); 237#L17 assume ~n > 0; 240#L18 [2019-10-22 09:01:02,838 INFO L793 eck$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 [2019-10-22 09:01:02,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:02,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1564606348, now seen corresponding path program 1 times [2019-10-22 09:01:02,839 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:02,839 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877154400] [2019-10-22 09:01:02,839 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:02,839 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:02,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:02,879 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:02,879 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877154400] [2019-10-22 09:01:02,880 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:02,880 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:01:02,880 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688191275] [2019-10-22 09:01:02,883 INFO L796 eck$LassoCheckResult]: stem already infeasible [2019-10-22 09:01:02,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:02,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1950448, now seen corresponding path program 2 times [2019-10-22 09:01:02,884 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:02,884 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301415633] [2019-10-22 09:01:02,884 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:02,884 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:02,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:02,892 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:02,967 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:01:02,967 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:01:02,967 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:01:02,967 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:01:02,968 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 09:01:02,968 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:02,968 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:01:02,968 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:01:02,968 INFO L131 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration3_Loop [2019-10-22 09:01:02,968 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:01:02,968 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:01:02,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:02,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:02,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:02,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:02,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:03,027 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:01:03,027 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 09:01:03,052 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:01:03,052 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/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 [2019-10-22 09:01:03,065 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:01:03,066 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:01:03,176 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:01:03,176 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#in~m=5, addition_~m=-1} Honda state: {addition_#in~m=5, addition_~m=-1} Generalized eigenvectors: [{addition_#in~m=1, addition_~m=0}, {addition_#in~m=-7, addition_~m=0}, {addition_#in~m=1, addition_~m=1}] Lambdas: [7, 0, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/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 [2019-10-22 09:01:03,181 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:01:03,181 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:01:03,183 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:01:03,183 INFO L440 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_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/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 [2019-10-22 09:01:03,187 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:01:03,188 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:01:03,190 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:01:03,190 INFO L440 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_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/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 [2019-10-22 09:01:03,195 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:01:03,195 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:01:03,197 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 09:01:03,197 INFO L440 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_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/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 [2019-10-22 09:01:03,202 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 09:01:03,202 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f287a12a-5b67-4dcf-8156-7b4aecd6bcc7/bin/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 [2019-10-22 09:01:03,210 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 09:01:03,210 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 09:01:04,058 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 09:01:04,059 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:01:04,059 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:01:04,059 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:01:04,059 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:01:04,060 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:01:04,060 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:04,060 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:01:04,060 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:01:04,060 INFO L131 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration3_Loop [2019-10-22 09:01:04,060 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:01:04,060 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:01:04,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:04,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:04,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:04,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:04,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:04,107 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:01:04,107 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:01:04,107 INFO L120 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 [2019-10-22 09:01:04,108 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:04,108 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:04,108 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:04,108 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:04,108 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:04,109 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:04,109 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:04,114 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:04,114 INFO L120 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 [2019-10-22 09:01:04,115 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:04,115 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:04,115 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:04,116 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:04,116 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:04,116 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:04,116 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:04,117 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:04,117 INFO L120 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 [2019-10-22 09:01:04,118 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:04,118 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:04,118 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:04,118 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:04,118 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:04,119 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:04,119 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:04,120 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:04,120 INFO L120 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 [2019-10-22 09:01:04,121 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:04,121 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:04,121 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:04,121 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:04,121 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:04,122 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:04,122 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:04,126 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:01:04,130 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-10-22 09:01:04,130 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 09:01:04,131 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:01:04,131 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 09:01:04,131 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:01:04,131 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_~n) = 1*addition_~n Supporting invariants [] [2019-10-22 09:01:04,132 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 09:01:04,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:04,157 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 09:01:04,158 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:04,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:04,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 09:01:04,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:04,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:04,185 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 [2019-10-22 09:01:04,185 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 30 transitions. cyclomatic complexity: 8 Second operand 4 states. [2019-10-22 09:01:04,216 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. [2019-10-22 09:01:04,217 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 [2019-10-22 09:01:04,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-10-22 09:01:04,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2019-10-22 09:01:04,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 4 letters. [2019-10-22 09:01:04,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:04,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 14 letters. Loop has 4 letters. [2019-10-22 09:01:04,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:04,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 8 letters. [2019-10-22 09:01:04,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:04,219 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 72 transitions. [2019-10-22 09:01:04,221 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-10-22 09:01:04,222 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 53 states and 63 transitions. [2019-10-22 09:01:04,223 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2019-10-22 09:01:04,223 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2019-10-22 09:01:04,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 63 transitions. [2019-10-22 09:01:04,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 09:01:04,224 INFO L688 BuchiCegarLoop]: Abstraction has 53 states and 63 transitions. [2019-10-22 09:01:04,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 63 transitions. [2019-10-22 09:01:04,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 46. [2019-10-22 09:01:04,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-10-22 09:01:04,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2019-10-22 09:01:04,229 INFO L711 BuchiCegarLoop]: Abstraction has 46 states and 55 transitions. [2019-10-22 09:01:04,229 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:04,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:01:04,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:01:04,232 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand 5 states. [2019-10-22 09:01:04,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:04,267 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2019-10-22 09:01:04,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:01:04,269 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 40 transitions. [2019-10-22 09:01:04,271 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:01:04,272 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 0 states and 0 transitions. [2019-10-22 09:01:04,272 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 09:01:04,272 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 09:01:04,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 09:01:04,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:01:04,272 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:04,272 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:04,272 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:04,272 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-10-22 09:01:04,272 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:01:04,273 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:01:04,273 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 09:01:04,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:01:04 BoogieIcfgContainer [2019-10-22 09:01:04,277 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:01:04,278 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:01:04,278 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:01:04,278 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:01:04,278 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:50" (3/4) ... [2019-10-22 09:01:04,281 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:01:04,281 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:01:04,290 INFO L168 Benchmark]: Toolchain (without parser) took 14717.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -101.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:04,291 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:04,291 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -175.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:04,291 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:04,291 INFO L168 Benchmark]: Boogie Preprocessor took 13.79 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:04,292 INFO L168 Benchmark]: RCFGBuilder took 190.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:04,292 INFO L168 Benchmark]: BuchiAutomizer took 14206.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 52.6 MB). Peak memory consumption was 52.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:04,293 INFO L168 Benchmark]: Witness Printer took 3.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:04,295 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 273.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -175.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.79 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 190.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 14206.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 52.6 MB). Peak memory consumption was 52.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 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 14.1s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 13.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 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: 10ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 12.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...