./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e465fe2a-624a-4de4-83ce-59ea788a0a75/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e465fe2a-624a-4de4-83ce-59ea788a0a75/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e465fe2a-624a-4de4-83ce-59ea788a0a75/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e465fe2a-624a-4de4-83ce-59ea788a0a75/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Singapore-2.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e465fe2a-624a-4de4-83ce-59ea788a0a75/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e465fe2a-624a-4de4-83ce-59ea788a0a75/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 0.1.24-cad4683 [2019-10-22 08:58:13,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:13,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:13,941 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:13,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:13,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:13,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:13,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:13,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:13,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:13,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:13,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:13,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:13,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:13,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:13,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:13,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:13,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:13,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:13,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:13,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:13,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:13,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:13,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:13,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:13,962 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:13,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:13,963 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:13,963 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:13,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:13,964 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:13,965 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:13,965 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:13,966 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:13,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:13,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:13,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:13,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:13,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:13,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:13,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:13,971 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e465fe2a-624a-4de4-83ce-59ea788a0a75/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 08:58:13,989 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:13,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:13,995 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:13,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:13,995 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:13,995 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:58:13,995 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:58:13,995 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:58:13,996 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:58:13,996 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:58:13,996 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:58:13,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:13,996 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:58:13,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:13,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:13,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:58:13,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:58:13,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:58:13,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:58:13,997 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:58:13,997 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:13,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:58:13,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:13,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:13,998 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:58:13,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:13,998 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:13,998 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:58:13,999 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:58:13,999 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_e465fe2a-624a-4de4-83ce-59ea788a0a75/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 [2019-10-22 08:58:14,034 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:14,042 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:14,046 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:14,048 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:14,048 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:14,049 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e465fe2a-624a-4de4-83ce-59ea788a0a75/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Singapore-2.c [2019-10-22 08:58:14,103 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e465fe2a-624a-4de4-83ce-59ea788a0a75/bin/uautomizer/data/c7956acef/a698cfbd0533442d867061e98cdab750/FLAG65adf9ee5 [2019-10-22 08:58:14,476 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:14,476 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e465fe2a-624a-4de4-83ce-59ea788a0a75/sv-benchmarks/c/termination-crafted/Singapore-2.c [2019-10-22 08:58:14,482 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e465fe2a-624a-4de4-83ce-59ea788a0a75/bin/uautomizer/data/c7956acef/a698cfbd0533442d867061e98cdab750/FLAG65adf9ee5 [2019-10-22 08:58:14,496 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e465fe2a-624a-4de4-83ce-59ea788a0a75/bin/uautomizer/data/c7956acef/a698cfbd0533442d867061e98cdab750 [2019-10-22 08:58:14,498 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:14,500 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:58:14,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:14,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:14,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:14,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:14" (1/1) ... [2019-10-22 08:58:14,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12c2988b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:14, skipping insertion in model container [2019-10-22 08:58:14,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:14" (1/1) ... [2019-10-22 08:58:14,516 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:14,531 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:14,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:14,700 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:14,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:14,793 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:14,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:14 WrapperNode [2019-10-22 08:58:14,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:14,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:14,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:58:14,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:58:14,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:14" (1/1) ... [2019-10-22 08:58:14,808 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:14" (1/1) ... [2019-10-22 08:58:14,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:14,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:14,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:14,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:14,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:14" (1/1) ... [2019-10-22 08:58:14,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:14" (1/1) ... [2019-10-22 08:58:14,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:14" (1/1) ... [2019-10-22 08:58:14,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:14" (1/1) ... [2019-10-22 08:58:14,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:14" (1/1) ... [2019-10-22 08:58:14,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:14" (1/1) ... [2019-10-22 08:58:14,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:14" (1/1) ... [2019-10-22 08:58:14,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:14,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:14,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:14,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:14,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e465fe2a-624a-4de4-83ce-59ea788a0a75/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:14,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:15,033 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:15,033 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-22 08:58:15,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:15 BoogieIcfgContainer [2019-10-22 08:58:15,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:15,035 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:58:15,035 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:58:15,038 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:58:15,039 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:58:15,039 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:58:14" (1/3) ... [2019-10-22 08:58:15,040 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70d78f40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:58:15, skipping insertion in model container [2019-10-22 08:58:15,040 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:58:15,040 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:14" (2/3) ... [2019-10-22 08:58:15,041 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70d78f40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:58:15, skipping insertion in model container [2019-10-22 08:58:15,041 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:58:15,041 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:15" (3/3) ... [2019-10-22 08:58:15,043 INFO L371 chiAutomizerObserver]: Analyzing ICFG Singapore-2.c [2019-10-22 08:58:15,115 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:58:15,115 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:58:15,115 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:58:15,115 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:15,115 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:15,115 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:58:15,115 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:15,116 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:58:15,132 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2019-10-22 08:58:15,149 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-10-22 08:58:15,151 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:15,151 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:15,157 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-10-22 08:58:15,157 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-10-22 08:58:15,157 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:58:15,157 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2019-10-22 08:58:15,162 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-10-22 08:58:15,163 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:58:15,163 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:58:15,163 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-10-22 08:58:15,163 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-10-22 08:58:15,171 INFO L791 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 4#L17true assume !!(-65535 <= main_~x~0 && main_~x~0 <= 65535); 6#L18true assume !!(-65535 <= main_~y~0 && main_~y~0 <= 65535); 10#L19true assume main_~x~0 + main_~y~0 <= 0; 7#L20-2true [2019-10-22 08:58:15,171 INFO L793 eck$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 [2019-10-22 08:58:15,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:15,178 INFO L82 PathProgramCache]: Analyzing trace with hash 959433, now seen corresponding path program 1 times [2019-10-22 08:58:15,184 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:15,184 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312453205] [2019-10-22 08:58:15,184 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:15,184 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:15,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:15,268 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:15,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:15,269 INFO L82 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 1 times [2019-10-22 08:58:15,269 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:15,270 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321861386] [2019-10-22 08:58:15,270 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:15,270 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:15,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:15,280 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:15,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:15,282 INFO L82 PathProgramCache]: Analyzing trace with hash 29742446, now seen corresponding path program 1 times [2019-10-22 08:58:15,282 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:15,282 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973807793] [2019-10-22 08:58:15,282 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:15,282 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:15,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:15,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:58:15,295 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:58:15,347 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:58:15,347 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:58:15,347 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:58:15,348 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:58:15,348 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:58:15,348 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:15,349 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:58:15,349 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:58:15,349 INFO L131 ssoRankerPreferences]: Filename of dumped script: Singapore-2.c_Iteration1_Loop [2019-10-22 08:58:15,349 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:58:15,349 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:58:15,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:15,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:15,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:15,461 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:58:15,461 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e465fe2a-624a-4de4-83ce-59ea788a0a75/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:15,470 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:15,470 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:58:15,476 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:15,476 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/working_dir_e465fe2a-624a-4de4-83ce-59ea788a0a75/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:15,482 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:15,483 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:58:15,486 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:15,486 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/working_dir_e465fe2a-624a-4de4-83ce-59ea788a0a75/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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:15,495 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:15,495 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e465fe2a-624a-4de4-83ce-59ea788a0a75/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) [2019-10-22 08:58:15,510 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:58:15,510 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 [2019-10-22 08:58:15,555 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:15,556 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=5, ULTIMATE.start_main_~x~0=14} Honda state: {ULTIMATE.start_main_~y~0=5, ULTIMATE.start_main_~x~0=14} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=14}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=4}] Lambdas: [1, 2, 2] Nus: [0, 0] [2019-10-22 08:58:15,595 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:58:15,596 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:58:15,596 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:58:15,596 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:58:15,596 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:58:15,596 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:15,596 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:58:15,596 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:58:15,597 INFO L131 ssoRankerPreferences]: Filename of dumped script: Singapore-2.c_Iteration1_Lasso [2019-10-22 08:58:15,597 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:58:15,597 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:58:15,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:15,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:15,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:15,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:15,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:15,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:15,697 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:58:15,697 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e465fe2a-624a-4de4-83ce-59ea788a0a75/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) [2019-10-22 08:58:15,704 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:15,705 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 [2019-10-22 08:58:15,709 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:15,709 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/working_dir_e465fe2a-624a-4de4-83ce-59ea788a0a75/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) [2019-10-22 08:58:15,717 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:15,717 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 [2019-10-22 08:58:15,723 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:15,724 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/working_dir_e465fe2a-624a-4de4-83ce-59ea788a0a75/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) [2019-10-22 08:58:15,731 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:15,731 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 [2019-10-22 08:58:15,737 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:15,737 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/working_dir_e465fe2a-624a-4de4-83ce-59ea788a0a75/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) [2019-10-22 08:58:15,745 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:15,745 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 [2019-10-22 08:58:15,749 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:58:15,749 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/working_dir_e465fe2a-624a-4de4-83ce-59ea788a0a75/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) [2019-10-22 08:58:15,757 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:58:15,758 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e465fe2a-624a-4de4-83ce-59ea788a0a75/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) [2019-10-22 08:58:15,777 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:58:15,777 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:19,372 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 08:58:19,375 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:58:19,375 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:58:19,375 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:58:19,375 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:58:19,376 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:58:19,376 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:58:19,376 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:58:19,376 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:58:19,376 INFO L131 ssoRankerPreferences]: Filename of dumped script: Singapore-2.c_Iteration1_Lasso [2019-10-22 08:58:19,376 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:58:19,376 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:58:19,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:19,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:19,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:19,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:19,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:19,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:58:19,478 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:58:19,483 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:58:19,485 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:58:19,486 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:19,486 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:19,486 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:19,487 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:19,490 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:58:19,491 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:58:19,498 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:19,499 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:58:19,499 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:19,499 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:19,500 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:19,500 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:19,500 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:19,501 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:58:19,501 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:19,502 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:19,513 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:58:19,514 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:19,514 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:19,514 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:19,514 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:19,515 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:19,515 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:58:19,515 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:19,516 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:19,516 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:58:19,517 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:19,517 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:19,517 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:19,517 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:19,518 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:19,529 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:58:19,530 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:19,531 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:19,532 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:58:19,532 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:19,532 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:19,533 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:19,533 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:19,534 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:58:19,534 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:58:19,540 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:19,540 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:58:19,541 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:19,541 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:19,541 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:19,541 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:58:19,550 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:58:19,550 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:58:19,665 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:19,665 INFO L489 LassoAnalysis]: Using template '2-nested'. [2019-10-22 08:58:19,666 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:58:19,666 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:19,667 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:19,667 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:19,667 INFO L204 nArgumentSynthesizer]: 3 template conjuncts. [2019-10-22 08:58:19,669 INFO L400 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-10-22 08:58:19,669 INFO L401 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-10-22 08:58:19,682 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:19,683 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:58:19,684 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:19,684 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:19,684 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:19,684 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:19,684 INFO L204 nArgumentSynthesizer]: 3 template conjuncts. [2019-10-22 08:58:19,685 INFO L400 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-10-22 08:58:19,685 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:19,690 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:19,690 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:58:19,691 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:19,691 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:19,691 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:19,692 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:19,692 INFO L204 nArgumentSynthesizer]: 3 template conjuncts. [2019-10-22 08:58:19,692 INFO L400 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-10-22 08:58:19,692 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:19,693 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:19,693 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:58:19,694 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:19,694 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:58:19,694 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:19,694 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:19,695 INFO L204 nArgumentSynthesizer]: 3 template conjuncts. [2019-10-22 08:58:19,695 INFO L400 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-10-22 08:58:19,695 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:58:19,696 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:19,696 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:58:19,697 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:19,697 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:19,697 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:19,697 INFO L204 nArgumentSynthesizer]: 3 template conjuncts. [2019-10-22 08:58:19,702 INFO L400 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-10-22 08:58:19,702 INFO L401 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-10-22 08:58:19,718 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:58:19,719 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-10-22 08:58:19,720 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:58:19,720 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:58:19,720 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:58:19,720 INFO L204 nArgumentSynthesizer]: 3 template conjuncts. [2019-10-22 08:58:19,725 INFO L400 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-10-22 08:58:19,725 INFO L401 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-10-22 08:58:20,205 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:58:20,352 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2019-10-22 08:58:20,352 INFO L444 ModelExtractionUtils]: 1 out of 16 variables were initially zero. Simplification set additionally 9 variables to zero. [2019-10-22 08:58:20,363 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:58:20,366 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 3. [2019-10-22 08:58:20,366 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:58:20,367 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] [2019-10-22 08:58:20,372 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-10-22 08:58:20,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:20,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-22 08:58:20,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:20,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:20,435 WARN L254 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 08:58:20,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:20,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:20,450 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 [2019-10-22 08:58:20,452 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 2 states. [2019-10-22 08:58:20,532 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states.. Second operand 2 states. Result 22 states and 27 transitions. Complement of second has 5 states. [2019-10-22 08:58:20,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-10-22 08:58:20,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-10-22 08:58:20,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2019-10-22 08:58:20,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 4 letters. Loop has 1 letters. [2019-10-22 08:58:20,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:20,540 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 1 letters. [2019-10-22 08:58:20,540 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:20,540 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 4 letters. Loop has 2 letters. [2019-10-22 08:58:20,540 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:58:20,541 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2019-10-22 08:58:20,545 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:58:20,548 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2019-10-22 08:58:20,549 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 08:58:20,550 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 08:58:20,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 08:58:20,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:58:20,552 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:58:20,552 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:58:20,553 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:58:20,553 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:58:20,553 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:58:20,553 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:58:20,553 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 08:58:20,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:58:20 BoogieIcfgContainer [2019-10-22 08:58:20,560 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:58:20,560 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:20,560 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:20,561 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:20,561 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:15" (3/4) ... [2019-10-22 08:58:20,565 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:58:20,565 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:20,568 INFO L168 Benchmark]: Toolchain (without parser) took 6066.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -119.6 MB). Peak memory consumption was 10.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:20,568 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:20,569 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:20,569 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.31 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:20,571 INFO L168 Benchmark]: Boogie Preprocessor took 14.34 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: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:20,572 INFO L168 Benchmark]: RCFGBuilder took 198.10 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:20,573 INFO L168 Benchmark]: BuchiAutomizer took 5524.77 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: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:20,573 INFO L168 Benchmark]: Witness Printer took 4.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:20,576 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 293.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.31 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.34 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: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 198.10 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5524.77 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: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.61 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 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 5.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 5.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 3.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...