./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Singapore-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Singapore-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/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 64bit --witnessprinter.graph.data.programhash 8798031d313d45f01361b1d24672bc4cca6c5157 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:15:34,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:15:34,741 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:15:34,826 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:15:34,826 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:15:34,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:15:34,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:15:34,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:15:34,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:15:34,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:15:34,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:15:34,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:15:34,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:15:34,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:15:34,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:15:34,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:15:34,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:15:34,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:15:34,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:15:34,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:15:34,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:15:34,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:15:34,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:15:34,864 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:15:34,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:15:34,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:15:34,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:15:34,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:15:34,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:15:34,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:15:34,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:15:34,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:15:34,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:15:34,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:15:34,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:15:34,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:15:34,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:15:34,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:15:34,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:15:34,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:15:34,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:15:34,897 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 03:15:34,944 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:15:34,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:15:34,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:15:34,946 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:15:34,946 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:15:34,947 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:15:34,947 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:15:34,947 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:15:34,947 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:15:34,948 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:15:34,949 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:15:34,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:15:34,950 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:15:34,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:15:34,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:15:34,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:15:34,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:15:34,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:15:34,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:15:34,952 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:15:34,952 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:15:34,952 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:15:34,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:15:34,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:15:34,953 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:15:34,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:15:34,954 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:15:34,954 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:15:34,954 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:15:34,956 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:15:34,957 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8798031d313d45f01361b1d24672bc4cca6c5157 [2020-11-28 03:15:35,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:15:35,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:15:35,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:15:35,257 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:15:35,258 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:15:35,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Singapore-2.c [2020-11-28 03:15:35,341 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/bin/uautomizer/data/1527f7ce5/46ee6165f10d40a8a7cb30aaf2e260c7/FLAGffb671f29 [2020-11-28 03:15:35,805 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:15:35,805 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/sv-benchmarks/c/termination-crafted/Singapore-2.c [2020-11-28 03:15:35,811 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/bin/uautomizer/data/1527f7ce5/46ee6165f10d40a8a7cb30aaf2e260c7/FLAGffb671f29 [2020-11-28 03:15:36,209 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/bin/uautomizer/data/1527f7ce5/46ee6165f10d40a8a7cb30aaf2e260c7 [2020-11-28 03:15:36,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:15:36,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:15:36,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:36,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:15:36,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:15:36,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:36" (1/1) ... [2020-11-28 03:15:36,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@470894ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36, skipping insertion in model container [2020-11-28 03:15:36,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:36" (1/1) ... [2020-11-28 03:15:36,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:15:36,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:15:36,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:36,425 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:15:36,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:36,479 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:15:36,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36 WrapperNode [2020-11-28 03:15:36,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:36,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:15:36,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:15:36,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:15:36,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36" (1/1) ... [2020-11-28 03:15:36,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36" (1/1) ... [2020-11-28 03:15:36,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:15:36,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:15:36,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:15:36,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:15:36,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36" (1/1) ... [2020-11-28 03:15:36,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36" (1/1) ... [2020-11-28 03:15:36,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36" (1/1) ... [2020-11-28 03:15:36,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36" (1/1) ... [2020-11-28 03:15:36,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36" (1/1) ... [2020-11-28 03:15:36,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36" (1/1) ... [2020-11-28 03:15:36,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36" (1/1) ... [2020-11-28 03:15:36,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:15:36,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:15:36,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:15:36,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:15:36,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/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 [2020-11-28 03:15:36,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:15:36,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:15:36,775 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:15:36,776 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 03:15:36,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:36 BoogieIcfgContainer [2020-11-28 03:15:36,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:15:36,778 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:15:36,778 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:15:36,782 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:15:36,782 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:15:36,782 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:15:36" (1/3) ... [2020-11-28 03:15:36,783 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70e8b7f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:15:36, skipping insertion in model container [2020-11-28 03:15:36,783 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:15:36,783 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:36" (2/3) ... [2020-11-28 03:15:36,784 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70e8b7f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:15:36, skipping insertion in model container [2020-11-28 03:15:36,784 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:15:36,784 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:36" (3/3) ... [2020-11-28 03:15:36,785 INFO L373 chiAutomizerObserver]: Analyzing ICFG Singapore-2.c [2020-11-28 03:15:36,831 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:15:36,831 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:15:36,831 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:15:36,831 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:15:36,831 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:15:36,831 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:15:36,831 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:15:36,832 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:15:36,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2020-11-28 03:15:36,860 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-28 03:15:36,860 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:15:36,860 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:15:36,866 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-28 03:15:36,866 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-28 03:15:36,866 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:15:36,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2020-11-28 03:15:36,870 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-28 03:15:36,870 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:15:36,870 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:15:36,870 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-28 03:15:36,870 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-28 03:15:36,892 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 4#L17true assume !!(-65535 <= main_~x~0 && main_~x~0 <= 65535); 6#L18true assume !!(-65535 <= main_~y~0 && main_~y~0 <= 65535); 10#L19true assume main_~x~0 + main_~y~0 <= 0; 7#L20-2true [2020-11-28 03:15:36,892 INFO L796 eck$LassoCheckResult]: Loop: 7#L20-2true assume !!(main_~x~0 > 0);main_~x~0 := main_~x~0 + main_~x~0 + main_~y~0;main_~y~0 := main_~y~0 - 1; 7#L20-2true [2020-11-28 03:15:36,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:36,898 INFO L82 PathProgramCache]: Analyzing trace with hash 959433, now seen corresponding path program 1 times [2020-11-28 03:15:36,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:36,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443476360] [2020-11-28 03:15:36,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:37,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:37,044 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:37,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:37,058 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:37,078 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:15:37,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:37,089 INFO L82 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 1 times [2020-11-28 03:15:37,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:37,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332544969] [2020-11-28 03:15:37,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:37,110 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:37,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:37,122 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:37,126 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:15:37,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:37,129 INFO L82 PathProgramCache]: Analyzing trace with hash 29742446, now seen corresponding path program 1 times [2020-11-28 03:15:37,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:37,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109185052] [2020-11-28 03:15:37,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:37,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:37,148 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:37,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:37,171 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:37,173 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:15:37,261 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:15:37,263 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:15:37,263 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:15:37,264 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:15:37,264 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:15:37,264 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:37,264 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:15:37,264 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:15:37,265 INFO L133 ssoRankerPreferences]: Filename of dumped script: Singapore-2.c_Iteration1_Loop [2020-11-28 03:15:37,265 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:15:37,265 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:15:37,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:37,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:37,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:37,411 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:15:37,412 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/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) [2020-11-28 03:15:37,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:15:37,423 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:37,436 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:15:37,437 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/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 [2020-11-28 03:15:37,481 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:15:37,481 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:15:37,489 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:15:37,489 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/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) [2020-11-28 03:15:37,533 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:15:37,533 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 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/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) [2020-11-28 03:15:37,580 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:15:37,580 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 [2020-11-28 03:15:37,659 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:15:37,659 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=-3, ULTIMATE.start_main_~x~0=11} Honda state: {ULTIMATE.start_main_~y~0=-3, ULTIMATE.start_main_~x~0=11} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=5, ULTIMATE.start_main_~x~0=2}, {ULTIMATE.start_main_~y~0=-5, ULTIMATE.start_main_~x~0=5}, {ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~x~0=1}] Lambdas: [2, 1, 1] Nus: [1, 0] [2020-11-28 03:15:37,753 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:15:37,753 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:15:37,754 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:15:37,754 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:15:37,754 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:15:37,754 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:37,754 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:15:37,754 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:15:37,754 INFO L133 ssoRankerPreferences]: Filename of dumped script: Singapore-2.c_Iteration1_Lasso [2020-11-28 03:15:37,754 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:15:37,755 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:15:37,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:37,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:37,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:37,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:37,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:37,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:37,981 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:15:37,982 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/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) [2020-11-28 03:15:37,990 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:15:37,990 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 [2020-11-28 03:15:37,994 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:15:37,994 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:38,034 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:15:38,034 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:15:38,037 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:15:38,038 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_2=0} Honda state: {v_rep~unnamed0~0~false_2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/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) [2020-11-28 03:15:38,078 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:15:38,078 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:38,085 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:15:38,085 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/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) [2020-11-28 03:15:38,126 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:15:38,126 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:38,131 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:15:38,131 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/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 [2020-11-28 03:15:38,158 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:15:38,158 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/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 [2020-11-28 03:15:38,197 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:15:38,197 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:15:49,918 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:15:49,922 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:15:49,923 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:15:49,923 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:15:49,923 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:15:49,923 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:15:49,923 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:49,923 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:15:49,923 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:15:49,923 INFO L133 ssoRankerPreferences]: Filename of dumped script: Singapore-2.c_Iteration1_Lasso [2020-11-28 03:15:49,923 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:15:49,923 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:15:49,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:49,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:49,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:49,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:49,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:49,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:15:50,101 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:15:50,106 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/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) [2020-11-28 03:15:50,112 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 [2020-11-28 03:15:50,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:15:50,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:15:50,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:15:50,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:15:50,119 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:15:50,119 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:50,125 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/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 [2020-11-28 03:15:50,149 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 [2020-11-28 03:15:50,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:15:50,151 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:15:50,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:15:50,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:15:50,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:15:50,153 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:15:50,153 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:15:50,157 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/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 [2020-11-28 03:15:50,184 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 [2020-11-28 03:15:50,186 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:15:50,186 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:15:50,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:15:50,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:15:50,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:15:50,187 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:15:50,187 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:15:50,188 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/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 [2020-11-28 03:15:50,214 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 [2020-11-28 03:15:50,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:15:50,216 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:15:50,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:15:50,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:15:50,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:15:50,217 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:15:50,217 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:15:50,218 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/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) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:50,243 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 [2020-11-28 03:15:50,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:15:50,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:15:50,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:15:50,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:15:50,248 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:15:50,248 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:15:50,253 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/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 [2020-11-28 03:15:50,279 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 [2020-11-28 03:15:50,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:15:50,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:15:50,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:15:50,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:15:50,289 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:15:50,290 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:15:50,309 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-28 03:15:50,343 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/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) [2020-11-28 03:15:50,350 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 [2020-11-28 03:15:50,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:15:50,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:15:50,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:15:50,352 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-28 03:15:50,356 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-11-28 03:15:50,357 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:50,365 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:50,398 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 [2020-11-28 03:15:50,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:15:50,399 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:15:50,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:15:50,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:15:50,400 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-28 03:15:50,400 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-28 03:15:50,401 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:15:50,402 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:50,429 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 [2020-11-28 03:15:50,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:15:50,431 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:15:50,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:15:50,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:15:50,432 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-28 03:15:50,433 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-28 03:15:50,433 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:15:50,436 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/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 [2020-11-28 03:15:50,461 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 [2020-11-28 03:15:50,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:15:50,463 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:15:50,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:15:50,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:15:50,463 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-28 03:15:50,464 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-28 03:15:50,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:15:50,470 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/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) [2020-11-28 03:15:50,520 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 [2020-11-28 03:15:50,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:15:50,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:15:50,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:15:50,523 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-28 03:15:50,529 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-11-28 03:15:50,530 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:50,537 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:50,567 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 [2020-11-28 03:15:50,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:15:50,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:15:50,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:15:50,570 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-28 03:15:50,579 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-11-28 03:15:50,579 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-11-28 03:15:50,597 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:15:50,642 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2020-11-28 03:15:50,642 INFO L444 ModelExtractionUtils]: 1 out of 16 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a6a1a8-96ca-4898-916b-63a562c934bb/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) [2020-11-28 03:15:50,650 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:15:50,656 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 3. [2020-11-28 03:15:50,656 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:15:50,657 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 3*ULTIMATE.start_main_~x~0 + 2*ULTIMATE.start_main_~y~0 f1 = 2*ULTIMATE.start_main_~x~0 Supporting invariants [-1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~x~0 >= 0] [2020-11-28 03:15:50,729 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-11-28 03:15:50,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:50,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:50,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:15:50,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:15:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:15:50,857 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 03:15:50,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:15:50,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:15:50,876 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-11-28 03:15:50,877 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 2 states. [2020-11-28 03:15:50,974 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states.. Second operand 2 states. Result 22 states and 27 transitions. Complement of second has 5 states. [2020-11-28 03:15:50,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:15:50,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-11-28 03:15:50,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2020-11-28 03:15:50,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 4 letters. Loop has 1 letters. [2020-11-28 03:15:50,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:15:50,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 1 letters. [2020-11-28 03:15:50,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:15:50,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-28 03:15:50,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:15:50,982 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2020-11-28 03:15:50,985 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:15:50,987 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2020-11-28 03:15:50,988 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:15:50,988 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:15:50,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:15:50,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:15:50,990 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:15:50,990 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:15:50,990 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:15:50,990 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:15:50,990 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:15:50,990 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:15:50,990 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:15:50,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:15:50 BoogieIcfgContainer [2020-11-28 03:15:50,996 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:15:50,996 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:15:50,996 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:15:50,997 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:15:50,997 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:36" (3/4) ... [2020-11-28 03:15:51,000 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:15:51,003 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:15:51,005 INFO L168 Benchmark]: Toolchain (without parser) took 14789.27 ms. Allocated memory is still 119.5 MB. Free memory was 89.3 MB in the beginning and 78.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:51,007 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 81.8 MB. Free memory was 54.1 MB in the beginning and 54.0 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:51,008 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.28 ms. Allocated memory is still 119.5 MB. Free memory was 89.3 MB in the beginning and 99.0 MB in the end (delta: -9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:51,011 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.60 ms. Allocated memory is still 119.5 MB. Free memory was 99.0 MB in the beginning and 97.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:51,013 INFO L168 Benchmark]: Boogie Preprocessor took 21.44 ms. Allocated memory is still 119.5 MB. Free memory was 97.7 MB in the beginning and 97.1 MB in the end (delta: 673.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:51,014 INFO L168 Benchmark]: RCFGBuilder took 234.15 ms. Allocated memory is still 119.5 MB. Free memory was 97.1 MB in the beginning and 87.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:51,014 INFO L168 Benchmark]: BuchiAutomizer took 14217.59 ms. Allocated memory is still 119.5 MB. Free memory was 87.9 MB in the beginning and 78.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:51,014 INFO L168 Benchmark]: Witness Printer took 6.65 ms. Allocated memory is still 119.5 MB. Free memory is still 78.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:51,023 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 81.8 MB. Free memory was 54.1 MB in the beginning and 54.0 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 268.28 ms. Allocated memory is still 119.5 MB. Free memory was 89.3 MB in the beginning and 99.0 MB in the end (delta: -9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.60 ms. Allocated memory is still 119.5 MB. Free memory was 99.0 MB in the beginning and 97.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.44 ms. Allocated memory is still 119.5 MB. Free memory was 97.7 MB in the beginning and 97.1 MB in the end (delta: 673.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 234.15 ms. Allocated memory is still 119.5 MB. Free memory was 97.1 MB in the beginning and 87.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 14217.59 ms. Allocated memory is still 119.5 MB. Free memory was 87.9 MB in the beginning and 78.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. * Witness Printer took 6.65 ms. Allocated memory is still 119.5 MB. Free memory is still 78.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 2-nested ranking function (if 3 * x + 2 * y > 0 then 1 else 0), (if 3 * x + 2 * y > 0 then 3 * x + 2 * y else 2 * x) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 14.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 13.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 13 SDtfs, 13 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital27 mio100 ax148 hnf100 lsp68 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf94 smp100 dnf100 smp100 tf102 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 11.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...