./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 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/Addition03-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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 0.1.24-678e011 [2019-11-20 01:06:56,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 01:06:56,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 01:06:56,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 01:06:56,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 01:06:56,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 01:06:56,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 01:06:56,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 01:06:56,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 01:06:56,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 01:06:56,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 01:06:56,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 01:06:56,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 01:06:56,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 01:06:56,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 01:06:56,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 01:06:56,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 01:06:56,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 01:06:56,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 01:06:56,914 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 01:06:56,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 01:06:56,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 01:06:56,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 01:06:56,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 01:06:56,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 01:06:56,926 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 01:06:56,926 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 01:06:56,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 01:06:56,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 01:06:56,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 01:06:56,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 01:06:56,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 01:06:56,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 01:06:56,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 01:06:56,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 01:06:56,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 01:06:56,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 01:06:56,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 01:06:56,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 01:06:56,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 01:06:56,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 01:06:56,943 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 01:06:56,964 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 01:06:56,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 01:06:56,966 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 01:06:56,966 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 01:06:56,966 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 01:06:56,967 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 01:06:56,967 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 01:06:56,967 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 01:06:56,967 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 01:06:56,967 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 01:06:56,968 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 01:06:56,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 01:06:56,969 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 01:06:56,969 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 01:06:56,969 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 01:06:56,969 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 01:06:56,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 01:06:56,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 01:06:56,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 01:06:56,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 01:06:56,970 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 01:06:56,970 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 01:06:56,970 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 01:06:56,970 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 01:06:56,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 01:06:56,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 01:06:56,971 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 01:06:56,971 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 01:06:56,971 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 01:06:56,972 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 01:06:56,972 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 01:06:56,973 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 01:06:56,973 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/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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 [2019-11-20 01:06:57,148 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 01:06:57,156 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 01:06:57,160 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 01:06:57,162 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 01:06:57,162 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 01:06:57,163 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/../../sv-benchmarks/c/recursive/Addition03-1.c [2019-11-20 01:06:57,225 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/data/eabc47f90/0c15c924d3d94b04ba2303c1c3c08d1c/FLAGdc94632ed [2019-11-20 01:06:57,591 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 01:06:57,592 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/sv-benchmarks/c/recursive/Addition03-1.c [2019-11-20 01:06:57,597 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/data/eabc47f90/0c15c924d3d94b04ba2303c1c3c08d1c/FLAGdc94632ed [2019-11-20 01:06:58,045 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/data/eabc47f90/0c15c924d3d94b04ba2303c1c3c08d1c [2019-11-20 01:06:58,047 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 01:06:58,048 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 01:06:58,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 01:06:58,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 01:06:58,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 01:06:58,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:06:58" (1/1) ... [2019-11-20 01:06:58,055 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67e30aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:06:58, skipping insertion in model container [2019-11-20 01:06:58,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:06:58" (1/1) ... [2019-11-20 01:06:58,062 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 01:06:58,075 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 01:06:58,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:06:58,268 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 01:06:58,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:06:58,382 INFO L192 MainTranslator]: Completed translation [2019-11-20 01:06:58,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:06:58 WrapperNode [2019-11-20 01:06:58,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 01:06:58,384 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 01:06:58,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 01:06:58,385 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 01:06:58,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:06:58" (1/1) ... [2019-11-20 01:06:58,398 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:06:58" (1/1) ... [2019-11-20 01:06:58,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 01:06:58,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 01:06:58,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 01:06:58,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 01:06:58,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:06:58" (1/1) ... [2019-11-20 01:06:58,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:06:58" (1/1) ... [2019-11-20 01:06:58,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:06:58" (1/1) ... [2019-11-20 01:06:58,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:06:58" (1/1) ... [2019-11-20 01:06:58,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:06:58" (1/1) ... [2019-11-20 01:06:58,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:06:58" (1/1) ... [2019-11-20 01:06:58,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:06:58" (1/1) ... [2019-11-20 01:06:58,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 01:06:58,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 01:06:58,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 01:06:58,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 01:06:58,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:06:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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 [2019-11-20 01:06:58,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 01:06:58,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 01:06:58,495 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2019-11-20 01:06:58,495 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2019-11-20 01:06:58,765 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 01:06:58,765 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-20 01:06:58,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:06:58 BoogieIcfgContainer [2019-11-20 01:06:58,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 01:06:58,767 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 01:06:58,767 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 01:06:58,770 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 01:06:58,770 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 01:06:58,771 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 01:06:58" (1/3) ... [2019-11-20 01:06:58,772 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5632cb9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 01:06:58, skipping insertion in model container [2019-11-20 01:06:58,772 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 01:06:58,772 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:06:58" (2/3) ... [2019-11-20 01:06:58,773 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5632cb9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 01:06:58, skipping insertion in model container [2019-11-20 01:06:58,773 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 01:06:58,773 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:06:58" (3/3) ... [2019-11-20 01:06:58,774 INFO L371 chiAutomizerObserver]: Analyzing ICFG Addition03-1.c [2019-11-20 01:06:58,843 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 01:06:58,843 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 01:06:58,843 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 01:06:58,843 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 01:06:58,844 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 01:06:58,844 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 01:06:58,844 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 01:06:58,844 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 01:06:58,857 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-20 01:06:58,879 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-20 01:06:58,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:06:58,880 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:06:58,887 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 01:06:58,887 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-20 01:06:58,887 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 01:06:58,887 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-20 01:06:58,889 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-20 01:06:58,890 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:06:58,890 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:06:58,890 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 01:06:58,890 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-20 01:06:58,896 INFO L794 eck$LassoCheckResult]: Stem: 14#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_~m~0, main_~n~0, main_~result~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 8#L29true call main_#t~ret4 := addition(main_~m~0, main_~n~0);< 13#additionENTRYtrue [2019-11-20 01:06:58,897 INFO L796 eck$LassoCheckResult]: Loop: 13#additionENTRYtrue ~m := #in~m;~n := #in~n; 16#L14true assume !(0 == ~n); 11#L17true assume ~n > 0; 9#L18true call #t~ret0 := addition(1 + ~m, ~n - 1);< 13#additionENTRYtrue [2019-11-20 01:06:58,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:06:58,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1024, now seen corresponding path program 1 times [2019-11-20 01:06:58,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:06:58,908 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964054891] [2019-11-20 01:06:58,908 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:06:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:06:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:06:58,978 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:06:58,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:06:58,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1358578, now seen corresponding path program 1 times [2019-11-20 01:06:58,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:06:58,980 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945546526] [2019-11-20 01:06:58,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:06:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:06:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:06:59,000 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:06:59,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:06:59,001 INFO L82 PathProgramCache]: Analyzing trace with hash 946120561, now seen corresponding path program 1 times [2019-11-20 01:06:59,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:06:59,002 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776618467] [2019-11-20 01:06:59,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:06:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:06:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:06:59,016 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:06:59,141 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 01:06:59,142 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 01:06:59,142 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 01:06:59,142 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 01:06:59,142 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 01:06:59,143 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:06:59,143 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 01:06:59,143 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 01:06:59,143 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration1_Loop [2019-11-20 01:06:59,143 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 01:06:59,144 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 01:06:59,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:06:59,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:06:59,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:06:59,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:06:59,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:06:59,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:06:59,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:06:59,271 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 01:06:59,272 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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 [2019-11-20 01:06:59,281 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:06:59,281 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 01:06:59,293 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 01:06:59,294 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/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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 [2019-11-20 01:06:59,315 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:06:59,318 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 01:06:59,323 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 01:06:59,323 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/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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) [2019-11-20 01:06:59,338 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:06:59,338 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 [2019-11-20 01:06:59,346 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 01:06:59,346 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/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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) [2019-11-20 01:06:59,361 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:06:59,361 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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) [2019-11-20 01:06:59,382 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 01:06:59,383 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:06:59,401 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 01:06:59,401 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/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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) [2019-11-20 01:06:59,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:06:59,423 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:06:59,432 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 01:06:59,432 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/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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 [2019-11-20 01:06:59,441 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:06:59,441 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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 [2019-11-20 01:06:59,462 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 01:06:59,463 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 01:06:59,470 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 01:06:59,472 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 01:06:59,472 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 01:06:59,472 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 01:06:59,472 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 01:06:59,472 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 01:06:59,473 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:06:59,473 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 01:06:59,473 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 01:06:59,473 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration1_Loop [2019-11-20 01:06:59,473 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 01:06:59,473 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 01:06:59,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:06:59,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:06:59,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:06:59,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:06:59,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:06:59,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:06:59,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:06:59,553 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 01:06:59,558 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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 [2019-11-20 01:06:59,571 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 [2019-11-20 01:06:59,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:06:59,574 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:06:59,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:06:59,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:06:59,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:06:59,577 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:06:59,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:06:59,579 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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 [2019-11-20 01:06:59,590 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 [2019-11-20 01:06:59,591 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:06:59,592 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:06:59,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:06:59,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:06:59,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:06:59,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:06:59,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:06:59,595 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:06:59,607 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 [2019-11-20 01:06:59,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:06:59,609 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:06:59,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:06:59,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:06:59,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:06:59,610 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:06:59,610 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:06:59,612 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:06:59,617 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 [2019-11-20 01:06:59,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:06:59,619 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:06:59,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:06:59,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:06:59,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:06:59,620 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:06:59,620 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:06:59,625 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:06:59,632 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 [2019-11-20 01:06:59,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:06:59,634 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:06:59,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:06:59,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:06:59,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:06:59,635 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:06:59,635 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:06:59,637 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:06:59,655 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 [2019-11-20 01:06:59,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:06:59,656 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:06:59,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:06:59,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:06:59,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:06:59,658 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:06:59,658 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:06:59,660 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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) [2019-11-20 01:06:59,679 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 [2019-11-20 01:06:59,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:06:59,681 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:06:59,681 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:06:59,681 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:06:59,681 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:06:59,683 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:06:59,683 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:06:59,689 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 01:06:59,694 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 01:06:59,694 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:06:59,699 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 01:06:59,699 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 01:06:59,700 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 01:06:59,700 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_#in~n) = 1*addition_#in~n Supporting invariants [] [2019-11-20 01:06:59,706 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 01:06:59,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:06:59,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:06:59,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 01:06:59,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:06:59,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:06:59,774 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 01:06:59,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:06:59,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:06:59,826 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 [2019-11-20 01:06:59,828 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states. Second operand 4 states. [2019-11-20 01:06:59,976 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. [2019-11-20 01:06:59,980 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 [2019-11-20 01:06:59,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 01:06:59,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2019-11-20 01:06:59,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-20 01:06:59,986 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:06:59,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2019-11-20 01:06:59,986 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:06:59,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 8 letters. [2019-11-20 01:06:59,987 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:06:59,987 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 66 transitions. [2019-11-20 01:07:00,002 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-20 01:07:00,009 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 24 states and 27 transitions. [2019-11-20 01:07:00,011 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-11-20 01:07:00,011 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-11-20 01:07:00,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 27 transitions. [2019-11-20 01:07:00,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 01:07:00,012 INFO L688 BuchiCegarLoop]: Abstraction has 24 states and 27 transitions. [2019-11-20 01:07:00,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 27 transitions. [2019-11-20 01:07:00,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 15. [2019-11-20 01:07:00,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-20 01:07:00,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2019-11-20 01:07:00,043 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2019-11-20 01:07:00,043 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2019-11-20 01:07:00,043 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 01:07:00,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2019-11-20 01:07:00,045 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-20 01:07:00,045 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:07:00,045 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:07:00,046 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 01:07:00,046 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-20 01:07:00,046 INFO L794 eck$LassoCheckResult]: Stem: 129#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_~m~0, main_~n~0, main_~result~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 123#L29 call main_#t~ret4 := addition(main_~m~0, main_~n~0);< 124#additionENTRY ~m := #in~m;~n := #in~n; 126#L14 assume !(0 == ~n); 130#L17 assume !(~n > 0); 119#L20 [2019-11-20 01:07:00,046 INFO L796 eck$LassoCheckResult]: Loop: 119#L20 assume ~n < 0; 120#L21 call #t~ret1 := addition(~m - 1, 1 + ~n);< 128#additionENTRY ~m := #in~m;~n := #in~n; 133#L14 assume !(0 == ~n); 132#L17 assume !(~n > 0); 119#L20 [2019-11-20 01:07:00,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:07:00,047 INFO L82 PathProgramCache]: Analyzing trace with hash 30520020, now seen corresponding path program 1 times [2019-11-20 01:07:00,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:07:00,047 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256593440] [2019-11-20 01:07:00,048 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:07:00,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:07:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:07:00,078 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:07:00,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:07:00,079 INFO L82 PathProgramCache]: Analyzing trace with hash 54650730, now seen corresponding path program 1 times [2019-11-20 01:07:00,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:07:00,079 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56748672] [2019-11-20 01:07:00,079 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:07:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:07:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:07:00,113 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:07:00,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:07:00,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1564606345, now seen corresponding path program 1 times [2019-11-20 01:07:00,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:07:00,114 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328748565] [2019-11-20 01:07:00,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:07:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:07:00,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:07:00,129 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:07:00,241 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 01:07:00,241 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 01:07:00,241 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 01:07:00,241 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 01:07:00,241 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 01:07:00,242 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:07:00,242 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 01:07:00,242 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 01:07:00,242 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration2_Loop [2019-11-20 01:07:00,242 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 01:07:00,242 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 01:07:00,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:07:00,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:07:00,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:07:00,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:07:00,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:07:00,347 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 01:07:00,347 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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 [2019-11-20 01:07:00,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:07:00,354 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 01:07:00,362 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 01:07:00,362 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/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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) [2019-11-20 01:07:00,377 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:07:00,378 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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) [2019-11-20 01:07:00,415 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 01:07:00,415 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:07:00,604 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 01:07:00,605 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/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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 [2019-11-20 01:07:00,615 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:07:00,615 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 01:07:00,618 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 01:07:00,619 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/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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) [2019-11-20 01:07:00,634 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:07:00,634 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:07:00,638 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 01:07:00,638 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/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/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) [2019-11-20 01:07:00,646 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:07:00,646 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 01:07:00,660 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 01:07:00,661 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:07:12,693 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2019-11-20 01:07:12,696 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 01:07:12,696 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 01:07:12,696 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 01:07:12,696 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 01:07:12,696 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 01:07:12,696 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:07:12,696 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 01:07:12,696 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 01:07:12,697 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration2_Loop [2019-11-20 01:07:12,697 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 01:07:12,697 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 01:07:12,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:07:12,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:07:12,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:07:12,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:07:12,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:07:12,787 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 01:07:12,788 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 01:07:12,793 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 [2019-11-20 01:07:12,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:07:12,795 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:07:12,795 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:07:12,795 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:07:12,795 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:07:12,796 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:07:12,796 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:07:12,803 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 01:07:12,809 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 Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:07:12,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:07:12,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:07:12,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:07:12,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:07:12,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:07:12,811 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:07:12,812 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:07:12,813 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:07:12,817 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 [2019-11-20 01:07:12,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:07:12,818 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:07:12,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:07:12,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:07:12,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:07:12,820 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:07:12,821 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:07:12,823 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 01:07:12,831 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 [2019-11-20 01:07:12,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:07:12,833 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:07:12,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:07:12,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:07:12,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:07:12,834 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:07:12,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:07:12,841 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:07:12,847 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 [2019-11-20 01:07:12,849 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:07:12,849 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:07:12,849 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:07:12,849 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:07:12,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:07:12,851 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:07:12,851 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:07:12,854 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 01:07:12,856 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-20 01:07:12,857 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 01:07:12,861 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 01:07:12,861 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 01:07:12,862 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 01:07:12,862 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_~n) = -1*addition_~n Supporting invariants [] Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:07:12,866 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 01:07:12,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:07:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:07:12,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 01:07:12,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:07:12,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:07:12,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 01:07:12,919 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:07:12,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:07:12,943 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 [2019-11-20 01:07:12,943 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand 5 states. [2019-11-20 01:07:12,991 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. [2019-11-20 01:07:12,992 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 [2019-11-20 01:07:12,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-20 01:07:12,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2019-11-20 01:07:12,993 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 5 letters. [2019-11-20 01:07:12,993 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:07:12,993 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 10 letters. Loop has 5 letters. [2019-11-20 01:07:12,994 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:07:12,994 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 10 letters. [2019-11-20 01:07:12,994 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:07:12,994 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 34 transitions. [2019-11-20 01:07:12,995 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-20 01:07:12,997 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 28 states and 33 transitions. [2019-11-20 01:07:12,997 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-11-20 01:07:12,997 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2019-11-20 01:07:12,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 33 transitions. [2019-11-20 01:07:12,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 01:07:12,997 INFO L688 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2019-11-20 01:07:12,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 33 transitions. [2019-11-20 01:07:13,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2019-11-20 01:07:13,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-20 01:07:13,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2019-11-20 01:07:13,004 INFO L711 BuchiCegarLoop]: Abstraction has 25 states and 30 transitions. [2019-11-20 01:07:13,004 INFO L591 BuchiCegarLoop]: Abstraction has 25 states and 30 transitions. [2019-11-20 01:07:13,004 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 01:07:13,004 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 30 transitions. [2019-11-20 01:07:13,005 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-20 01:07:13,006 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:07:13,006 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:07:13,007 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-11-20 01:07:13,007 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-20 01:07:13,007 INFO L794 eck$LassoCheckResult]: Stem: 236#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_~m~0, main_~n~0, main_~result~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 234#L29 call main_#t~ret4 := addition(main_~m~0, main_~n~0);< 239#additionENTRY ~m := #in~m;~n := #in~n; 246#L14 assume !(0 == ~n); 249#L17 assume !(~n > 0); 232#L20 assume ~n < 0; 227#L21 call #t~ret1 := addition(~m - 1, 1 + ~n);< 226#additionENTRY ~m := #in~m;~n := #in~n; 228#L14 assume !(0 == ~n); 237#L17 assume ~n > 0; 240#L18 [2019-11-20 01:07:13,008 INFO L796 eck$LassoCheckResult]: Loop: 240#L18 call #t~ret0 := addition(1 + ~m, ~n - 1);< 241#additionENTRY ~m := #in~m;~n := #in~n; 250#L14 assume !(0 == ~n); 247#L17 assume ~n > 0; 240#L18 [2019-11-20 01:07:13,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:07:13,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1564606348, now seen corresponding path program 1 times [2019-11-20 01:07:13,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:07:13,009 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536770674] [2019-11-20 01:07:13,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:07:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:07:13,074 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:07:13,075 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536770674] [2019-11-20 01:07:13,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:07:13,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 01:07:13,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776693171] [2019-11-20 01:07:13,079 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 01:07:13,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:07:13,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1950448, now seen corresponding path program 2 times [2019-11-20 01:07:13,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:07:13,080 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798520735] [2019-11-20 01:07:13,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:07:13,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:07:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:07:13,094 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:07:13,191 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 01:07:13,191 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 01:07:13,191 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 01:07:13,191 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 01:07:13,191 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 01:07:13,191 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:07:13,191 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 01:07:13,192 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 01:07:13,192 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration3_Loop [2019-11-20 01:07:13,192 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 01:07:13,192 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 01:07:13,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:07:13,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:07:13,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:07:13,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:07:13,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:07:13,265 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 01:07:13,265 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 01:07:13,273 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:07:13,273 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 01:07:13,285 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 01:07:13,285 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:07:13,416 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 01:07:13,416 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/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:07:13,421 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:07:13,421 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 01:07:13,424 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 01:07:13,424 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/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:07:13,428 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:07:13,428 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 01:07:13,433 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 01:07:13,433 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/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:07:13,437 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:07:13,437 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 01:07:13,440 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 01:07:13,440 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/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/z3 Starting monitored process 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:07:13,444 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 01:07:13,444 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:07:13,457 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 01:07:13,457 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 01:07:14,426 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 01:07:14,428 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 01:07:14,428 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 01:07:14,429 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 01:07:14,429 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 01:07:14,429 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 01:07:14,429 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:07:14,429 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 01:07:14,429 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 01:07:14,429 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration3_Loop [2019-11-20 01:07:14,429 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 01:07:14,429 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 01:07:14,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:07:14,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:07:14,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:07:14,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:07:14,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:07:14,513 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 01:07:14,513 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/z3 Starting monitored process 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:07:14,519 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 [2019-11-20 01:07:14,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:07:14,521 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:07:14,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:07:14,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:07:14,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:07:14,522 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:07:14,522 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:07:14,529 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/z3 Starting monitored process 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:07:14,535 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 [2019-11-20 01:07:14,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:07:14,538 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:07:14,539 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:07:14,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:07:14,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:07:14,539 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:07:14,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:07:14,541 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/z3 Starting monitored process 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:07:14,550 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 [2019-11-20 01:07:14,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:07:14,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:07:14,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:07:14,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:07:14,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:07:14,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:07:14,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:07:14,553 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/z3 Starting monitored process 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:07:14,557 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 [2019-11-20 01:07:14,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:07:14,559 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:07:14,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:07:14,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:07:14,559 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:07:14,560 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:07:14,560 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:07:14,562 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 01:07:14,565 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 01:07:14,565 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_261602cf-821f-4d79-b584-8d5eea7a687b/bin/uautomizer/z3 Starting monitored process 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:07:14,567 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 01:07:14,567 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 01:07:14,568 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 01:07:14,568 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_~n) = 1*addition_~n Supporting invariants [] [2019-11-20 01:07:14,569 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 01:07:14,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:07:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:07:14,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 01:07:14,599 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:07:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:07:14,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 01:07:14,610 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:07:14,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:07:14,635 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 [2019-11-20 01:07:14,635 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 30 transitions. cyclomatic complexity: 8 Second operand 4 states. [2019-11-20 01:07:14,691 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. [2019-11-20 01:07:14,691 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 [2019-11-20 01:07:14,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 01:07:14,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2019-11-20 01:07:14,692 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 4 letters. [2019-11-20 01:07:14,692 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:07:14,692 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 14 letters. Loop has 4 letters. [2019-11-20 01:07:14,693 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:07:14,693 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 8 letters. [2019-11-20 01:07:14,693 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:07:14,693 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 72 transitions. [2019-11-20 01:07:14,696 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-20 01:07:14,698 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 53 states and 63 transitions. [2019-11-20 01:07:14,698 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2019-11-20 01:07:14,699 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2019-11-20 01:07:14,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 63 transitions. [2019-11-20 01:07:14,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 01:07:14,699 INFO L688 BuchiCegarLoop]: Abstraction has 53 states and 63 transitions. [2019-11-20 01:07:14,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 63 transitions. [2019-11-20 01:07:14,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 46. [2019-11-20 01:07:14,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-11-20 01:07:14,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2019-11-20 01:07:14,704 INFO L711 BuchiCegarLoop]: Abstraction has 46 states and 55 transitions. [2019-11-20 01:07:14,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:07:14,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 01:07:14,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 01:07:14,708 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand 5 states. [2019-11-20 01:07:14,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:07:14,746 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2019-11-20 01:07:14,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 01:07:14,747 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 40 transitions. [2019-11-20 01:07:14,747 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 01:07:14,748 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 0 states and 0 transitions. [2019-11-20 01:07:14,748 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 01:07:14,748 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 01:07:14,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 01:07:14,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 01:07:14,748 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 01:07:14,748 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 01:07:14,748 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 01:07:14,748 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 01:07:14,748 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 01:07:14,749 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 01:07:14,749 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 01:07:14,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 01:07:14 BoogieIcfgContainer [2019-11-20 01:07:14,753 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 01:07:14,753 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 01:07:14,753 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 01:07:14,754 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 01:07:14,754 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:06:58" (3/4) ... [2019-11-20 01:07:14,757 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 01:07:14,757 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 01:07:14,759 INFO L168 Benchmark]: Toolchain (without parser) took 16710.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 211.8 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -138.4 MB). Peak memory consumption was 73.5 MB. Max. memory is 11.5 GB. [2019-11-20 01:07:14,759 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:07:14,760 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -189.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-20 01:07:14,760 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.08 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. [2019-11-20 01:07:14,761 INFO L168 Benchmark]: Boogie Preprocessor took 20.55 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. [2019-11-20 01:07:14,761 INFO L168 Benchmark]: RCFGBuilder took 331.08 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: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2019-11-20 01:07:14,762 INFO L168 Benchmark]: BuchiAutomizer took 15986.29 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 66.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.8 MB). Peak memory consumption was 96.9 MB. Max. memory is 11.5 GB. [2019-11-20 01:07:14,762 INFO L168 Benchmark]: Witness Printer took 3.74 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. [2019-11-20 01:07:14,765 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 335.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -189.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.08 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 20.55 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 331.08 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: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 15986.29 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 66.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.8 MB). Peak memory consumption was 96.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.74 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 15.9s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 15.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. 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, 0.1s 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: 20ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 13.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...