./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/MinusUserDefined.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/run_dir_0128c8d6-63ba-41e1-b50f-e96472d042f2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0128c8d6-63ba-41e1-b50f-e96472d042f2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0128c8d6-63ba-41e1-b50f-e96472d042f2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0128c8d6-63ba-41e1-b50f-e96472d042f2/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0128c8d6-63ba-41e1-b50f-e96472d042f2/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0128c8d6-63ba-41e1-b50f-e96472d042f2/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 2e63fdedc7f36bfa4d0d39679a5a7ea76cc5ddf1 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 20:38:54,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:38:54,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:38:54,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:38:54,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:38:54,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:38:54,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:38:54,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:38:54,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:38:54,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:38:54,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:38:54,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:38:54,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:38:54,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:38:54,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:38:54,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:38:54,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:38:54,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:38:54,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:38:54,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:38:54,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:38:54,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:38:54,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:38:54,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:38:54,258 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:38:54,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:38:54,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:38:54,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:38:54,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:38:54,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:38:54,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:38:54,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:38:54,264 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:38:54,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:38:54,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:38:54,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:38:54,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:38:54,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:38:54,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:38:54,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:38:54,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:38:54,271 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0128c8d6-63ba-41e1-b50f-e96472d042f2/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-15 20:38:54,288 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:38:54,288 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:38:54,290 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:38:54,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:38:54,290 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:38:54,291 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 20:38:54,291 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 20:38:54,291 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 20:38:54,292 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 20:38:54,292 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 20:38:54,292 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 20:38:54,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:38:54,293 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 20:38:54,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:38:54,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:38:54,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 20:38:54,294 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 20:38:54,294 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 20:38:54,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:38:54,295 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 20:38:54,295 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:38:54,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 20:38:54,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:38:54,296 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:38:54,296 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 20:38:54,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:38:54,297 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:38:54,297 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 20:38:54,298 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 20:38:54,298 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0128c8d6-63ba-41e1-b50f-e96472d042f2/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 -> 2e63fdedc7f36bfa4d0d39679a5a7ea76cc5ddf1 [2019-11-15 20:38:54,328 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:38:54,340 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:38:54,344 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:38:54,345 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:38:54,346 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:38:54,347 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0128c8d6-63ba-41e1-b50f-e96472d042f2/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c [2019-11-15 20:38:54,415 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0128c8d6-63ba-41e1-b50f-e96472d042f2/bin/uautomizer/data/16c783e8e/8ae196864cb14437b40d276b479214b5/FLAG9f3bd6ac2 [2019-11-15 20:38:54,862 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:38:54,862 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0128c8d6-63ba-41e1-b50f-e96472d042f2/sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c [2019-11-15 20:38:54,869 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0128c8d6-63ba-41e1-b50f-e96472d042f2/bin/uautomizer/data/16c783e8e/8ae196864cb14437b40d276b479214b5/FLAG9f3bd6ac2 [2019-11-15 20:38:55,271 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0128c8d6-63ba-41e1-b50f-e96472d042f2/bin/uautomizer/data/16c783e8e/8ae196864cb14437b40d276b479214b5 [2019-11-15 20:38:55,273 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:38:55,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:38:55,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:38:55,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:38:55,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:38:55,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:38:55" (1/1) ... [2019-11-15 20:38:55,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c108e5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:55, skipping insertion in model container [2019-11-15 20:38:55,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:38:55" (1/1) ... [2019-11-15 20:38:55,294 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:38:55,312 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:38:55,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:38:55,522 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:38:55,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:38:55,660 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:38:55,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:55 WrapperNode [2019-11-15 20:38:55,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:38:55,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:38:55,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:38:55,663 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:38:55,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:55" (1/1) ... [2019-11-15 20:38:55,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:55" (1/1) ... [2019-11-15 20:38:55,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:38:55,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:38:55,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:38:55,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:38:55,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:55" (1/1) ... [2019-11-15 20:38:55,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:55" (1/1) ... [2019-11-15 20:38:55,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:55" (1/1) ... [2019-11-15 20:38:55,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:55" (1/1) ... [2019-11-15 20:38:55,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:55" (1/1) ... [2019-11-15 20:38:55,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:55" (1/1) ... [2019-11-15 20:38:55,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:55" (1/1) ... [2019-11-15 20:38:55,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:38:55,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:38:55,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:38:55,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:38:55,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0128c8d6-63ba-41e1-b50f-e96472d042f2/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:38:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:38:55,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:38:55,919 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:38:55,919 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-15 20:38:55,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:38:55 BoogieIcfgContainer [2019-11-15 20:38:55,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:38:55,921 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 20:38:55,921 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 20:38:55,926 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 20:38:55,928 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:38:55,928 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 08:38:55" (1/3) ... [2019-11-15 20:38:55,929 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@599f72ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 08:38:55, skipping insertion in model container [2019-11-15 20:38:55,929 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:38:55,930 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:38:55" (2/3) ... [2019-11-15 20:38:55,931 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@599f72ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 08:38:55, skipping insertion in model container [2019-11-15 20:38:55,931 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 20:38:55,931 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:38:55" (3/3) ... [2019-11-15 20:38:55,933 INFO L371 chiAutomizerObserver]: Analyzing ICFG MinusUserDefined.c [2019-11-15 20:38:55,978 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 20:38:55,978 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 20:38:55,978 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 20:38:55,978 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:38:55,978 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:38:55,979 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 20:38:55,979 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:38:55,979 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 20:38:55,992 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-15 20:38:56,009 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2019-11-15 20:38:56,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:38:56,010 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:38:56,016 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-15 20:38:56,016 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-15 20:38:56,016 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 20:38:56,016 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-15 20:38:56,017 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2019-11-15 20:38:56,017 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:38:56,018 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:38:56,018 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-15 20:38:56,018 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-15 20:38:56,024 INFO L791 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~res~0;havoc main_~x~0;havoc main_~y~0;havoc main_~res~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~res~0 := 0; 4#L13-2true [2019-11-15 20:38:56,024 INFO L793 eck$LassoCheckResult]: Loop: 4#L13-2true assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 4#L13-2true [2019-11-15 20:38:56,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:38:56,029 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-15 20:38:56,035 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:38:56,035 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292052027] [2019-11-15 20:38:56,036 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:38:56,036 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:38:56,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:38:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:38:56,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:38:56,110 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:38:56,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:38:56,111 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-11-15 20:38:56,111 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:38:56,111 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191325974] [2019-11-15 20:38:56,111 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:38:56,111 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:38:56,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:38:56,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:38:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:38:56,123 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:38:56,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:38:56,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-15 20:38:56,125 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:38:56,125 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083529231] [2019-11-15 20:38:56,126 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:38:56,126 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:38:56,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:38:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:38:56,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:38:56,140 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:38:56,210 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 20:38:56,211 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 20:38:56,211 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 20:38:56,211 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 20:38:56,211 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 20:38:56,211 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:38:56,212 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 20:38:56,212 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 20:38:56,212 INFO L131 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined.c_Iteration1_Loop [2019-11-15 20:38:56,212 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 20:38:56,213 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 20:38:56,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:56,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:56,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:56,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:56,420 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 20:38:56,421 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0128c8d6-63ba-41e1-b50f-e96472d042f2/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) [2019-11-15 20:38:56,433 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 20:38:56,433 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 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0128c8d6-63ba-41e1-b50f-e96472d042f2/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) [2019-11-15 20:38:56,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 20:38:56,451 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 20:38:56,462 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:38:56,466 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 20:38:56,468 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 20:38:56,468 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 20:38:56,469 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 20:38:56,469 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 20:38:56,469 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:38:56,469 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 20:38:56,469 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 20:38:56,469 INFO L131 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined.c_Iteration1_Loop [2019-11-15 20:38:56,469 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 20:38:56,470 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 20:38:56,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:56,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:56,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:56,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:56,605 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 20:38:56,611 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 20:38:56,613 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 20:38:56,615 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 20:38:56,615 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 20:38:56,618 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 20:38:56,619 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 20:38:56,619 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 20:38:56,622 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 20:38:56,623 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 20:38:56,647 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 20:38:56,663 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 20:38:56,664 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 20:38:56,667 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 20:38:56,668 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 20:38:56,669 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 20:38:56,669 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-11-15 20:38:56,673 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 20:38:56,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:38:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:38:56,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 20:38:56,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:38:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:38:56,750 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 20:38:56,752 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:38:56,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:38:56,772 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 [2019-11-15 20:38:56,774 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 2 states. [2019-11-15 20:38:56,842 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 2 states. Result 23 states and 39 transitions. Complement of second has 5 states. [2019-11-15 20:38:56,843 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 [2019-11-15 20:38:56,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-15 20:38:56,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2019-11-15 20:38:56,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 1 letters. Loop has 1 letters. [2019-11-15 20:38:56,850 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 20:38:56,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 1 letters. [2019-11-15 20:38:56,850 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 20:38:56,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-15 20:38:56,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 20:38:56,852 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 39 transitions. [2019-11-15 20:38:56,855 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 20:38:56,861 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 9 states and 16 transitions. [2019-11-15 20:38:56,862 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-15 20:38:56,863 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-15 20:38:56,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 16 transitions. [2019-11-15 20:38:56,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 20:38:56,864 INFO L688 BuchiCegarLoop]: Abstraction has 9 states and 16 transitions. [2019-11-15 20:38:56,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 16 transitions. [2019-11-15 20:38:56,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2019-11-15 20:38:56,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-15 20:38:56,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 15 transitions. [2019-11-15 20:38:56,897 INFO L711 BuchiCegarLoop]: Abstraction has 8 states and 15 transitions. [2019-11-15 20:38:56,897 INFO L591 BuchiCegarLoop]: Abstraction has 8 states and 15 transitions. [2019-11-15 20:38:56,898 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 20:38:56,898 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 15 transitions. [2019-11-15 20:38:56,899 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 20:38:56,899 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:38:56,899 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:38:56,900 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-15 20:38:56,900 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 20:38:56,900 INFO L791 eck$LassoCheckResult]: Stem: 60#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~res~0;havoc main_~x~0;havoc main_~y~0;havoc main_~res~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~res~0 := 0; 61#L13-2 assume !(main_~x~0 > 0 && main_~y~0 > 0); 63#L21-3 [2019-11-15 20:38:56,901 INFO L793 eck$LassoCheckResult]: Loop: 63#L21-3 assume !!(main_~x~0 > 0);main_~y~0 := 1 + main_~y~0;main_~res~0 := 1 + main_~res~0; 65#L21-2 assume !(main_~x~0 > 0 && main_~y~0 > 0); 63#L21-3 [2019-11-15 20:38:56,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:38:56,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1000, now seen corresponding path program 1 times [2019-11-15 20:38:56,901 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:38:56,902 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58305120] [2019-11-15 20:38:56,902 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:38:56,902 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:38:56,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:38:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:38:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:38:56,913 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:38:56,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:38:56,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1640, now seen corresponding path program 1 times [2019-11-15 20:38:56,914 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:38:56,914 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625545493] [2019-11-15 20:38:56,915 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:38:56,915 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:38:56,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:38:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:38:56,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:38:56,925 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:38:56,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:38:56,926 INFO L82 PathProgramCache]: Analyzing trace with hash 961679, now seen corresponding path program 1 times [2019-11-15 20:38:56,926 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:38:56,927 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730084796] [2019-11-15 20:38:56,927 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:38:56,927 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:38:56,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:38:56,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:38:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:38:56,940 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:38:56,988 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 20:38:56,988 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 20:38:56,988 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 20:38:56,988 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 20:38:56,988 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 20:38:56,988 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:38:56,989 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 20:38:56,989 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 20:38:56,989 INFO L131 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined.c_Iteration2_Loop [2019-11-15 20:38:56,989 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 20:38:56,989 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 20:38:56,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:56,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:57,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:57,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:57,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:57,086 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 20:38:57,087 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0128c8d6-63ba-41e1-b50f-e96472d042f2/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 [2019-11-15 20:38:57,097 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 20:38:57,097 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 20:38:57,105 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 20:38:57,105 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0128c8d6-63ba-41e1-b50f-e96472d042f2/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:38:57,117 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 20:38:57,117 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0128c8d6-63ba-41e1-b50f-e96472d042f2/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:38:57,137 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 20:38:57,137 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 20:38:57,233 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 20:38:57,236 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 20:38:57,236 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 20:38:57,236 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 20:38:57,236 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 20:38:57,236 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 20:38:57,237 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:38:57,237 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 20:38:57,237 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 20:38:57,237 INFO L131 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined.c_Iteration2_Loop [2019-11-15 20:38:57,237 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 20:38:57,237 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 20:38:57,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:57,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:57,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:57,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:57,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:57,337 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 20:38:57,338 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 20:38:57,338 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 20:38:57,339 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 20:38:57,339 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 20:38:57,340 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 20:38:57,340 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 20:38:57,343 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 20:38:57,343 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 20:38:57,349 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 20:38:57,350 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 [2019-11-15 20:38:57,351 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 20:38:57,351 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 20:38:57,351 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 20:38:57,351 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 20:38:57,352 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 20:38:57,353 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 20:38:57,353 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 20:38:57,359 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 20:38:57,363 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 20:38:57,363 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 20:38:57,364 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 20:38:57,364 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 20:38:57,365 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 20:38:57,365 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-11-15 20:38:57,366 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 20:38:57,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:38:57,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:38:57,413 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 20:38:57,414 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:38:57,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:38:57,422 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 20:38:57,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:38:57,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:38:57,453 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-15 20:38:57,453 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 15 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-11-15 20:38:57,489 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 15 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 22 states and 34 transitions. Complement of second has 7 states. [2019-11-15 20:38:57,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-15 20:38:57,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 20:38:57,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2019-11-15 20:38:57,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-15 20:38:57,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 20:38:57,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-15 20:38:57,492 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 20:38:57,492 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-15 20:38:57,492 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 20:38:57,492 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 34 transitions. [2019-11-15 20:38:57,494 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 20:38:57,495 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 15 states and 23 transitions. [2019-11-15 20:38:57,495 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-15 20:38:57,495 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-11-15 20:38:57,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 23 transitions. [2019-11-15 20:38:57,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 20:38:57,496 INFO L688 BuchiCegarLoop]: Abstraction has 15 states and 23 transitions. [2019-11-15 20:38:57,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 23 transitions. [2019-11-15 20:38:57,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-15 20:38:57,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-15 20:38:57,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 23 transitions. [2019-11-15 20:38:57,498 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 23 transitions. [2019-11-15 20:38:57,498 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 23 transitions. [2019-11-15 20:38:57,498 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-15 20:38:57,499 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 23 transitions. [2019-11-15 20:38:57,500 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 20:38:57,500 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 20:38:57,500 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 20:38:57,500 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2019-11-15 20:38:57,501 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 20:38:57,501 INFO L791 eck$LassoCheckResult]: Stem: 126#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~res~0;havoc main_~x~0;havoc main_~y~0;havoc main_~res~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~res~0 := 0; 127#L13-2 assume !(main_~x~0 > 0 && main_~y~0 > 0); 128#L21-3 assume !!(main_~x~0 > 0);main_~y~0 := 1 + main_~y~0;main_~res~0 := 1 + main_~res~0; 140#L21-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 137#L21-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 135#L21-2 assume !(main_~x~0 > 0 && main_~y~0 > 0); 130#L21-3 [2019-11-15 20:38:57,501 INFO L793 eck$LassoCheckResult]: Loop: 130#L21-3 assume !!(main_~x~0 > 0);main_~y~0 := 1 + main_~y~0;main_~res~0 := 1 + main_~res~0; 131#L21-2 assume !(main_~x~0 > 0 && main_~y~0 > 0); 130#L21-3 [2019-11-15 20:38:57,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:38:57,501 INFO L82 PathProgramCache]: Analyzing trace with hash 924176399, now seen corresponding path program 1 times [2019-11-15 20:38:57,502 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:38:57,502 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978789337] [2019-11-15 20:38:57,502 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:38:57,502 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:38:57,502 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:38:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:38:57,584 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:38:57,585 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978789337] [2019-11-15 20:38:57,585 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:38:57,586 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 20:38:57,586 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832317897] [2019-11-15 20:38:57,588 INFO L796 eck$LassoCheckResult]: stem already infeasible [2019-11-15 20:38:57,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:38:57,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1640, now seen corresponding path program 2 times [2019-11-15 20:38:57,589 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:38:57,589 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772671856] [2019-11-15 20:38:57,589 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:38:57,589 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:38:57,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:38:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:38:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 20:38:57,615 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 20:38:57,658 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 20:38:57,658 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 20:38:57,659 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 20:38:57,659 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 20:38:57,659 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 20:38:57,659 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:38:57,659 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 20:38:57,659 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 20:38:57,659 INFO L131 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined.c_Iteration3_Loop [2019-11-15 20:38:57,659 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 20:38:57,660 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 20:38:57,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:57,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:57,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:57,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:57,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:57,773 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 20:38:57,773 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0128c8d6-63ba-41e1-b50f-e96472d042f2/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 20:38:57,779 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 20:38:57,779 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 20:38:57,785 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 20:38:57,785 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0128c8d6-63ba-41e1-b50f-e96472d042f2/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) [2019-11-15 20:38:57,809 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 20:38:57,809 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 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0128c8d6-63ba-41e1-b50f-e96472d042f2/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) [2019-11-15 20:38:57,835 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 20:38:57,835 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 [2019-11-15 20:38:57,937 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 20:38:57,940 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 20:38:57,941 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 20:38:57,941 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 20:38:57,941 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 20:38:57,941 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 20:38:57,942 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 20:38:57,942 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 20:38:57,942 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 20:38:57,942 INFO L131 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined.c_Iteration3_Loop [2019-11-15 20:38:57,942 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 20:38:57,943 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 20:38:57,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:57,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:57,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:57,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:57,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 20:38:58,057 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 20:38:58,057 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 20:38:58,058 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 20:38:58,059 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 20:38:58,059 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 20:38:58,059 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 20:38:58,060 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 20:38:58,062 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 20:38:58,062 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 20:38:58,077 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 20:38:58,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 20:38:58,079 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 20:38:58,079 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 20:38:58,079 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 20:38:58,079 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 20:38:58,080 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 20:38:58,089 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 20:38:58,089 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 20:38:58,094 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 20:38:58,097 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 20:38:58,097 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 20:38:58,098 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 20:38:58,098 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 20:38:58,098 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 20:38:58,098 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-11-15 20:38:58,099 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 20:38:58,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:38:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:38:58,136 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 20:38:58,137 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:38:58,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:38:58,145 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 20:38:58,145 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:38:58,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:38:58,162 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-15 20:38:58,163 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 23 transitions. cyclomatic complexity: 13 Second operand 3 states. [2019-11-15 20:38:58,201 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 23 transitions. cyclomatic complexity: 13. Second operand 3 states. Result 43 states and 65 transitions. Complement of second has 7 states. [2019-11-15 20:38:58,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-15 20:38:58,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 20:38:58,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2019-11-15 20:38:58,203 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-15 20:38:58,203 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 20:38:58,203 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2019-11-15 20:38:58,204 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 20:38:58,204 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2019-11-15 20:38:58,204 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 20:38:58,204 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 65 transitions. [2019-11-15 20:38:58,207 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 20:38:58,208 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 30 states and 45 transitions. [2019-11-15 20:38:58,209 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-15 20:38:58,209 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-11-15 20:38:58,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 45 transitions. [2019-11-15 20:38:58,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 20:38:58,209 INFO L688 BuchiCegarLoop]: Abstraction has 30 states and 45 transitions. [2019-11-15 20:38:58,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 45 transitions. [2019-11-15 20:38:58,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 19. [2019-11-15 20:38:58,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-15 20:38:58,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 30 transitions. [2019-11-15 20:38:58,213 INFO L711 BuchiCegarLoop]: Abstraction has 19 states and 30 transitions. [2019-11-15 20:38:58,216 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:38:58,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 20:38:58,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:38:58,222 INFO L87 Difference]: Start difference. First operand 19 states and 30 transitions. Second operand 5 states. [2019-11-15 20:38:58,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:38:58,278 INFO L93 Difference]: Finished difference Result 13 states and 18 transitions. [2019-11-15 20:38:58,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:38:58,279 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2019-11-15 20:38:58,280 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 20:38:58,280 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2019-11-15 20:38:58,280 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-15 20:38:58,280 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-15 20:38:58,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-15 20:38:58,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 20:38:58,281 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:38:58,281 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:38:58,281 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:38:58,281 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-15 20:38:58,281 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-15 20:38:58,281 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 20:38:58,281 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-15 20:38:58,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 08:38:58 BoogieIcfgContainer [2019-11-15 20:38:58,289 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 20:38:58,290 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:38:58,290 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:38:58,290 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:38:58,291 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:38:55" (3/4) ... [2019-11-15 20:38:58,295 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 20:38:58,295 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:38:58,298 INFO L168 Benchmark]: Toolchain (without parser) took 3022.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 947.4 MB in the beginning and 914.7 MB in the end (delta: 32.7 MB). Peak memory consumption was 175.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:38:58,299 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:38:58,300 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 947.4 MB in the beginning and 1.1 GB in the end (delta: -189.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-15 20:38:58,300 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:38:58,301 INFO L168 Benchmark]: Boogie Preprocessor took 17.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:38:58,302 INFO L168 Benchmark]: RCFGBuilder took 210.49 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: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:38:58,303 INFO L168 Benchmark]: BuchiAutomizer took 2368.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 914.7 MB in the end (delta: 200.9 MB). Peak memory consumption was 200.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:38:58,303 INFO L168 Benchmark]: Witness Printer took 5.73 ms. Allocated memory is still 1.2 GB. Free memory is still 914.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:38:58,307 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 386.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 947.4 MB in the beginning and 1.1 GB in the end (delta: -189.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 210.49 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: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2368.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 914.7 MB in the end (delta: 200.9 MB). Peak memory consumption was 200.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.73 ms. Allocated memory is still 1.2 GB. Free memory is still 914.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function -1 * y and consists of 4 locations. One deterministic module has affine ranking function -1 * y and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 15 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 16 SDtfs, 18 SDslu, 3 SDs, 0 SdLazy, 43 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax164 hnf97 lsp33 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 11ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...