./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.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_f67d21c6-60d3-4fb4-8d6c-dd9edbf9ff7b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f67d21c6-60d3-4fb4-8d6c-dd9edbf9ff7b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f67d21c6-60d3-4fb4-8d6c-dd9edbf9ff7b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f67d21c6-60d3-4fb4-8d6c-dd9edbf9ff7b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f67d21c6-60d3-4fb4-8d6c-dd9edbf9ff7b/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f67d21c6-60d3-4fb4-8d6c-dd9edbf9ff7b/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 208a8efcd2fd6b8ea52a20177afd9722587411ce ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 08:55:47,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:55:47,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:55:47,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:55:47,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:55:47,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:55:47,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:55:47,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:55:47,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:55:47,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:55:47,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:55:47,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:55:47,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:55:47,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:55:47,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:55:47,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:55:47,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:55:47,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:55:47,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:55:47,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:55:47,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:55:47,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:55:47,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:55:47,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:55:47,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:55:47,291 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:55:47,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:55:47,292 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:55:47,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:55:47,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:55:47,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:55:47,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:55:47,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:55:47,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:55:47,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:55:47,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:55:47,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:55:47,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:55:47,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:55:47,299 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:55:47,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:55:47,300 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f67d21c6-60d3-4fb4-8d6c-dd9edbf9ff7b/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 08:55:47,313 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:55:47,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:55:47,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:55:47,315 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:55:47,315 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:55:47,315 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:55:47,315 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:55:47,315 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:55:47,316 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:55:47,316 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:55:47,316 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:55:47,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:55:47,316 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:55:47,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:55:47,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:55:47,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:55:47,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:55:47,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:55:47,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:55:47,317 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:55:47,317 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:55:47,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:55:47,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:55:47,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:55:47,318 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:55:47,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:55:47,318 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:55:47,318 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:55:47,319 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:55:47,319 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_f67d21c6-60d3-4fb4-8d6c-dd9edbf9ff7b/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 -> 208a8efcd2fd6b8ea52a20177afd9722587411ce [2019-10-22 08:55:47,343 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:55:47,353 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:55:47,356 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:55:47,357 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:55:47,358 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:55:47,358 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f67d21c6-60d3-4fb4-8d6c-dd9edbf9ff7b/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.c [2019-10-22 08:55:47,416 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f67d21c6-60d3-4fb4-8d6c-dd9edbf9ff7b/bin/uautomizer/data/f85617ecd/a0ebd1b45c164f12b312c32eaa337ab5/FLAG22967deeb [2019-10-22 08:55:47,779 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:55:47,779 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f67d21c6-60d3-4fb4-8d6c-dd9edbf9ff7b/sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.c [2019-10-22 08:55:47,784 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f67d21c6-60d3-4fb4-8d6c-dd9edbf9ff7b/bin/uautomizer/data/f85617ecd/a0ebd1b45c164f12b312c32eaa337ab5/FLAG22967deeb [2019-10-22 08:55:47,794 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f67d21c6-60d3-4fb4-8d6c-dd9edbf9ff7b/bin/uautomizer/data/f85617ecd/a0ebd1b45c164f12b312c32eaa337ab5 [2019-10-22 08:55:47,797 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:55:47,798 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:55:47,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:47,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:55:47,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:55:47,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:47" (1/1) ... [2019-10-22 08:55:47,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d76dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:47, skipping insertion in model container [2019-10-22 08:55:47,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:47" (1/1) ... [2019-10-22 08:55:47,816 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:55:47,832 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:55:47,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:47,965 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:55:48,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:48,053 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:55:48,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:48 WrapperNode [2019-10-22 08:55:48,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:48,055 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:48,055 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:55:48,055 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:55:48,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:48" (1/1) ... [2019-10-22 08:55:48,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:48" (1/1) ... [2019-10-22 08:55:48,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:48,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:55:48,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:55:48,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:55:48,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:48" (1/1) ... [2019-10-22 08:55:48,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:48" (1/1) ... [2019-10-22 08:55:48,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:48" (1/1) ... [2019-10-22 08:55:48,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:48" (1/1) ... [2019-10-22 08:55:48,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:48" (1/1) ... [2019-10-22 08:55:48,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:48" (1/1) ... [2019-10-22 08:55:48,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:48" (1/1) ... [2019-10-22 08:55:48,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:55:48,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:55:48,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:55:48,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:55:48,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f67d21c6-60d3-4fb4-8d6c-dd9edbf9ff7b/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 08:55:48,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:55:48,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:55:48,340 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:55:48,340 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-22 08:55:48,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:48 BoogieIcfgContainer [2019-10-22 08:55:48,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:55:48,342 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:55:48,342 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:55:48,346 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:55:48,347 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:55:48,347 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:55:47" (1/3) ... [2019-10-22 08:55:48,348 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d1d4db8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:55:48, skipping insertion in model container [2019-10-22 08:55:48,349 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:55:48,349 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:48" (2/3) ... [2019-10-22 08:55:48,349 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d1d4db8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:55:48, skipping insertion in model container [2019-10-22 08:55:48,350 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:55:48,350 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:48" (3/3) ... [2019-10-22 08:55:48,351 INFO L371 chiAutomizerObserver]: Analyzing ICFG 4NestedWith3Variables-1.c [2019-10-22 08:55:48,454 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:55:48,455 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:55:48,455 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:55:48,455 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:55:48,455 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:55:48,455 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:55:48,455 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:55:48,456 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:55:48,473 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2019-10-22 08:55:48,494 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-10-22 08:55:48,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:55:48,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:55:48,501 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-10-22 08:55:48,501 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-10-22 08:55:48,502 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:55:48,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2019-10-22 08:55:48,503 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-10-22 08:55:48,504 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:55:48,504 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:55:48,505 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-10-22 08:55:48,505 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-10-22 08:55:48,512 INFO L791 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~a~0, main_~b~0, main_~q~0, main_~olda~0;havoc main_~a~0;havoc main_~b~0;havoc main_~q~0;havoc main_~olda~0;main_~q~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~a~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~b~0 := main_#t~nondet2;havoc main_#t~nondet2; 5#L23true assume !!(-524287 <= main_~q~0 && main_~q~0 <= 524287); 8#L24true assume !!(-524287 <= main_~a~0 && main_~a~0 <= 524287); 11#L25true assume !!(-524287 <= main_~b~0 && main_~b~0 <= 524287); 9#L26-2true [2019-10-22 08:55:48,513 INFO L793 eck$LassoCheckResult]: Loop: 9#L26-2true assume !!(main_~q~0 > 0);main_~q~0 := main_~q~0 + main_~a~0 - 1;main_~olda~0 := main_~a~0;main_~a~0 := 3 * main_~olda~0 - 4 * main_~b~0;main_~b~0 := 4 * main_~olda~0 + 3 * main_~b~0; 9#L26-2true [2019-10-22 08:55:48,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:48,519 INFO L82 PathProgramCache]: Analyzing trace with hash 959435, now seen corresponding path program 1 times [2019-10-22 08:55:48,527 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:48,527 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998271203] [2019-10-22 08:55:48,528 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:48,528 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:48,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:48,634 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:48,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:48,636 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2019-10-22 08:55:48,637 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:48,637 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792440149] [2019-10-22 08:55:48,637 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:48,637 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:48,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:48,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:48,652 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:48,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:48,653 INFO L82 PathProgramCache]: Analyzing trace with hash 29742510, now seen corresponding path program 1 times [2019-10-22 08:55:48,654 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:48,654 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969655897] [2019-10-22 08:55:48,654 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:48,654 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:48,654 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:48,681 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:55:48,740 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:55:48,741 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:55:48,741 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:55:48,741 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:55:48,741 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:55:48,741 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:55:48,742 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:55:48,742 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:55:48,742 INFO L131 ssoRankerPreferences]: Filename of dumped script: 4NestedWith3Variables-1.c_Iteration1_Loop [2019-10-22 08:55:48,742 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:55:48,742 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:55:48,764 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 08:55:48,773 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 08:55:48,778 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 08:55:48,908 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:55:48,909 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f67d21c6-60d3-4fb4-8d6c-dd9edbf9ff7b/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) [2019-10-22 08:55:48,918 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:55:48,918 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 [2019-10-22 08:55:48,929 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:55:48,929 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_f67d21c6-60d3-4fb4-8d6c-dd9edbf9ff7b/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) [2019-10-22 08:55:48,940 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:55:48,940 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:55:48,946 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:55:48,947 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_f67d21c6-60d3-4fb4-8d6c-dd9edbf9ff7b/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-10-22 08:55:48,957 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:55:48,957 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f67d21c6-60d3-4fb4-8d6c-dd9edbf9ff7b/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 08:55:48,977 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:55:48,978 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 08:56:01,013 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2019-10-22 08:56:01,016 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:56:01,016 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:56:01,016 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:56:01,016 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:56:01,017 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:56:01,017 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:56:01,017 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:56:01,017 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:56:01,017 INFO L131 ssoRankerPreferences]: Filename of dumped script: 4NestedWith3Variables-1.c_Iteration1_Loop [2019-10-22 08:56:01,017 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:56:01,017 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:56:01,018 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 08:56:01,028 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 08:56:01,032 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 08:56:01,130 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:56:01,135 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:56:01,136 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 08:56:01,139 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:01,139 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:01,139 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:01,139 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:01,143 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:56:01,143 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:56:01,149 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:01,150 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 08:56:01,151 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:01,151 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:01,151 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:01,151 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:01,153 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:56:01,154 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:56:01,163 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:01,163 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 08:56:01,164 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:01,164 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:01,165 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:01,165 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:01,165 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:01,166 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:01,166 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:01,180 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:01,180 INFO L489 LassoAnalysis]: Using template '2-nested'. [2019-10-22 08:56:01,181 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 08:56:01,182 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:01,182 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:01,182 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:01,182 INFO L204 nArgumentSynthesizer]: 3 template conjuncts. [2019-10-22 08:56:01,184 INFO L400 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-10-22 08:56:01,185 INFO L401 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-10-22 08:56:01,201 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:01,201 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 08:56:01,202 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:01,202 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:01,202 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:01,202 INFO L204 nArgumentSynthesizer]: 3 template conjuncts. [2019-10-22 08:56:01,205 INFO L400 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-10-22 08:56:01,205 INFO L401 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-10-22 08:56:01,221 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:01,222 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 08:56:01,222 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:01,222 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:01,223 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:01,223 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:01,223 INFO L204 nArgumentSynthesizer]: 3 template conjuncts. [2019-10-22 08:56:01,232 INFO L400 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-10-22 08:56:01,232 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:01,253 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:01,253 INFO L489 LassoAnalysis]: Using template '3-nested'. [2019-10-22 08:56:01,253 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 08:56:01,254 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:01,257 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:01,257 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:01,258 INFO L204 nArgumentSynthesizer]: 4 template conjuncts. [2019-10-22 08:56:01,260 INFO L400 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-10-22 08:56:01,261 INFO L401 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-10-22 08:56:01,271 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:01,276 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 08:56:01,277 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:01,277 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:01,277 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:01,278 INFO L204 nArgumentSynthesizer]: 4 template conjuncts. [2019-10-22 08:56:01,284 INFO L400 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-10-22 08:56:01,284 INFO L401 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-10-22 08:56:01,296 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:01,296 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 08:56:01,297 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:01,297 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:01,298 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:01,298 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:01,298 INFO L204 nArgumentSynthesizer]: 4 template conjuncts. [2019-10-22 08:56:01,300 INFO L400 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-10-22 08:56:01,300 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:01,318 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:01,319 INFO L489 LassoAnalysis]: Using template '4-nested'. [2019-10-22 08:56:01,319 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 08:56:01,320 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:01,320 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:01,320 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:01,320 INFO L204 nArgumentSynthesizer]: 5 template conjuncts. [2019-10-22 08:56:01,323 INFO L400 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-10-22 08:56:01,323 INFO L401 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2019-10-22 08:56:01,328 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:01,328 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 08:56:01,329 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:01,329 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:01,329 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:01,330 INFO L204 nArgumentSynthesizer]: 5 template conjuncts. [2019-10-22 08:56:01,332 INFO L400 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-10-22 08:56:01,332 INFO L401 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2019-10-22 08:56:01,341 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:01,341 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 08:56:01,342 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:01,342 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:01,342 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:01,342 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:01,343 INFO L204 nArgumentSynthesizer]: 5 template conjuncts. [2019-10-22 08:56:01,344 INFO L400 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2019-10-22 08:56:01,344 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:01,368 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:56:01,435 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-10-22 08:56:01,435 INFO L444 ModelExtractionUtils]: 8 out of 21 variables were initially zero. Simplification set additionally 4 variables to zero. [2019-10-22 08:56:01,437 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:56:01,438 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 08:56:01,438 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:56:01,438 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 4-nested ranking function: f0 = -20*ULTIMATE.start_main_~b~0 + 100*ULTIMATE.start_main_~q~0 - 10*ULTIMATE.start_main_~a~0 f1 = -4*ULTIMATE.start_main_~b~0 + 3*ULTIMATE.start_main_~a~0 f2 = 1*ULTIMATE.start_main_~q~0 + 1*ULTIMATE.start_main_~a~0 f3 = 1*ULTIMATE.start_main_~q~0 Supporting invariants [] [2019-10-22 08:56:01,442 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 08:56:01,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:01,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:01,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:56:01,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:01,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:01,513 WARN L254 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 12 conjunts are in the unsatisfiable core [2019-10-22 08:56:01,513 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:01,514 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 08:56:01,529 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 08:56:01,530 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 2 states. [2019-10-22 08:56:01,566 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states.. Second operand 2 states. Result 21 states and 26 transitions. Complement of second has 5 states. [2019-10-22 08:56:01,567 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 08:56:01,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-10-22 08:56:01,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2019-10-22 08:56:01,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 1 letters. [2019-10-22 08:56:01,572 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:56:01,572 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 1 letters. [2019-10-22 08:56:01,572 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:56:01,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 2 letters. [2019-10-22 08:56:01,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:56:01,574 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2019-10-22 08:56:01,576 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:56:01,578 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2019-10-22 08:56:01,579 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 08:56:01,580 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 08:56:01,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 08:56:01,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:56:01,580 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:56:01,581 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:56:01,581 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:56:01,581 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:56:01,581 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:56:01,581 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:56:01,581 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 08:56:01,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:56:01 BoogieIcfgContainer [2019-10-22 08:56:01,587 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:56:01,587 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:56:01,588 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:56:01,588 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:56:01,588 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:48" (3/4) ... [2019-10-22 08:56:01,592 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:56:01,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:56:01,594 INFO L168 Benchmark]: Toolchain (without parser) took 13794.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 944.7 MB in the beginning and 997.6 MB in the end (delta: -52.8 MB). Peak memory consumption was 87.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:01,594 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:01,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -192.6 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:01,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.47 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 08:56:01,596 INFO L168 Benchmark]: Boogie Preprocessor took 19.30 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:01,597 INFO L168 Benchmark]: RCFGBuilder took 234.12 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: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:01,597 INFO L168 Benchmark]: BuchiAutomizer took 13245.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 997.6 MB in the end (delta: 120.0 MB). Peak memory consumption was 120.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:01,598 INFO L168 Benchmark]: Witness Printer took 4.42 ms. Allocated memory is still 1.2 GB. Free memory is still 997.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:01,601 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 254.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -192.6 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.47 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 19.30 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 234.12 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: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 13245.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 997.6 MB in the end (delta: 120.0 MB). Peak memory consumption was 120.0 MB. Max. memory is 11.5 GB. * Witness Printer took 4.42 ms. Allocated memory is still 1.2 GB. Free memory is still 997.6 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 4-nested ranking function (if -20 * b + 100 * q + -10 * a > 0 then 3 else (if -4 * b + 3 * a > 0 then 2 else (if q + a > 0 then 1 else 0))), (if -20 * b + 100 * q + -10 * a > 0 then -20 * b + 100 * q + -10 * a else (if -4 * b + 3 * a > 0 then -4 * b + 3 * a else (if q + a > 0 then q + a else q))) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 12.9s. 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: 12 SDtfs, 12 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital32 mio100 ax137 hnf102 lsp73 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq196 hnf93 smp100 dnf100 smp100 tf103 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 5 MotzkinApplications: 15 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 12.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...