./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/c.02_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_57a3a7ff-9027-49f5-9e3a-c3856b98767e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_57a3a7ff-9027-49f5-9e3a-c3856b98767e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_57a3a7ff-9027-49f5-9e3a-c3856b98767e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_57a3a7ff-9027-49f5-9e3a-c3856b98767e/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/c.02_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_57a3a7ff-9027-49f5-9e3a-c3856b98767e/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_57a3a7ff-9027-49f5-9e3a-c3856b98767e/bin-2019/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 c3e40038ef85c6e1a2de0a898912241a10300c47 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:43:06,193 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:43:06,194 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:43:06,202 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:43:06,202 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:43:06,203 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:43:06,204 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:43:06,205 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:43:06,206 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:43:06,207 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:43:06,207 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:43:06,207 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:43:06,208 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:43:06,209 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:43:06,209 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:43:06,210 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:43:06,210 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:43:06,212 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:43:06,213 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:43:06,214 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:43:06,215 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:43:06,216 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:43:06,217 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:43:06,217 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:43:06,217 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:43:06,218 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:43:06,219 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:43:06,219 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:43:06,220 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:43:06,221 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:43:06,221 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:43:06,221 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:43:06,221 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:43:06,221 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:43:06,222 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:43:06,223 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:43:06,223 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_57a3a7ff-9027-49f5-9e3a-c3856b98767e/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 12:43:06,233 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:43:06,233 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:43:06,234 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:43:06,234 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:43:06,235 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:43:06,235 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 12:43:06,235 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 12:43:06,235 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 12:43:06,235 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 12:43:06,235 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 12:43:06,235 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 12:43:06,236 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:43:06,236 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:43:06,236 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:43:06,236 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:43:06,236 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 12:43:06,236 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 12:43:06,236 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 12:43:06,236 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:43:06,237 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 12:43:06,237 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:43:06,237 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 12:43:06,237 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:43:06,237 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:43:06,237 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 12:43:06,237 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:43:06,238 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:43:06,238 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 12:43:06,238 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 12:43:06,239 INFO L133 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_57a3a7ff-9027-49f5-9e3a-c3856b98767e/bin-2019/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 -> c3e40038ef85c6e1a2de0a898912241a10300c47 [2018-11-28 12:43:06,265 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:43:06,274 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:43:06,277 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:43:06,278 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:43:06,278 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:43:06,279 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_57a3a7ff-9027-49f5-9e3a-c3856b98767e/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/c.02_true-termination_true-no-overflow.c [2018-11-28 12:43:06,325 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_57a3a7ff-9027-49f5-9e3a-c3856b98767e/bin-2019/uautomizer/data/210fffb3c/3ef26e476f8443d8a1352725e8e7573b/FLAG14b3f4a45 [2018-11-28 12:43:06,651 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:43:06,651 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_57a3a7ff-9027-49f5-9e3a-c3856b98767e/sv-benchmarks/c/termination-restricted-15/c.02_true-termination_true-no-overflow.c [2018-11-28 12:43:06,655 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_57a3a7ff-9027-49f5-9e3a-c3856b98767e/bin-2019/uautomizer/data/210fffb3c/3ef26e476f8443d8a1352725e8e7573b/FLAG14b3f4a45 [2018-11-28 12:43:07,084 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_57a3a7ff-9027-49f5-9e3a-c3856b98767e/bin-2019/uautomizer/data/210fffb3c/3ef26e476f8443d8a1352725e8e7573b [2018-11-28 12:43:07,086 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:43:07,087 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:43:07,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:43:07,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:43:07,090 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:43:07,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:43:07" (1/1) ... [2018-11-28 12:43:07,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5738d09e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:07, skipping insertion in model container [2018-11-28 12:43:07,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:43:07" (1/1) ... [2018-11-28 12:43:07,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:43:07,105 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:43:07,198 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:43:07,201 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:43:07,211 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:43:07,220 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:43:07,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:07 WrapperNode [2018-11-28 12:43:07,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:43:07,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:43:07,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:43:07,221 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:43:07,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:07" (1/1) ... [2018-11-28 12:43:07,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:07" (1/1) ... [2018-11-28 12:43:07,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:43:07,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:43:07,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:43:07,246 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:43:07,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:07" (1/1) ... [2018-11-28 12:43:07,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:07" (1/1) ... [2018-11-28 12:43:07,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:07" (1/1) ... [2018-11-28 12:43:07,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:07" (1/1) ... [2018-11-28 12:43:07,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:07" (1/1) ... [2018-11-28 12:43:07,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:07" (1/1) ... [2018-11-28 12:43:07,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:07" (1/1) ... [2018-11-28 12:43:07,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:43:07,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:43:07,261 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:43:07,261 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:43:07,262 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57a3a7ff-9027-49f5-9e3a-c3856b98767e/bin-2019/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 [2018-11-28 12:43:07,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:43:07,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:43:07,472 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:43:07,472 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 12:43:07,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:43:07 BoogieIcfgContainer [2018-11-28 12:43:07,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:43:07,474 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 12:43:07,474 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 12:43:07,477 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 12:43:07,478 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:43:07,478 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 12:43:07" (1/3) ... [2018-11-28 12:43:07,479 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3fc7fd89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 12:43:07, skipping insertion in model container [2018-11-28 12:43:07,479 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:43:07,479 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:43:07" (2/3) ... [2018-11-28 12:43:07,480 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3fc7fd89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 12:43:07, skipping insertion in model container [2018-11-28 12:43:07,480 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:43:07,480 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:43:07" (3/3) ... [2018-11-28 12:43:07,481 INFO L375 chiAutomizerObserver]: Analyzing ICFG c.02_true-termination_true-no-overflow.c [2018-11-28 12:43:07,542 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:43:07,543 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 12:43:07,543 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 12:43:07,543 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 12:43:07,543 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:43:07,543 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:43:07,543 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 12:43:07,543 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:43:07,543 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 12:43:07,558 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 12:43:07,581 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 12:43:07,582 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:43:07,582 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:43:07,589 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 12:43:07,589 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 12:43:07,589 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 12:43:07,589 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 12:43:07,590 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 12:43:07,590 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:43:07,591 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:43:07,591 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 12:43:07,591 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 12:43:07,599 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 9#L10-2true [2018-11-28 12:43:07,600 INFO L796 eck$LassoCheckResult]: Loop: 9#L10-2true assume !!(main_~x~0 >= 0 && main_~x~0 < 2147483647);main_~x~0 := 1 + main_~x~0;main_~y~0 := 1; 5#L13-2true assume !(main_~x~0 > main_~y~0); 3#L13-3true main_~x~0 := main_~x~0 - 2; 9#L10-2true [2018-11-28 12:43:07,606 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:43:07,606 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 12:43:07,608 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:43:07,609 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:43:07,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:43:07,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:43:07,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:43:07,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:43:07,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:43:07,700 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:43:07,701 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2018-11-28 12:43:07,701 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:43:07,701 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:43:07,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:43:07,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:43:07,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:43:07,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:43:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:43:07,713 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:43:07,713 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2018-11-28 12:43:07,713 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:43:07,714 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:43:07,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:43:07,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:43:07,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:43:07,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:43:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:43:07,800 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:43:07,801 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:43:07,801 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:43:07,801 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:43:07,801 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 12:43:07,801 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:43:07,801 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:43:07,801 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:43:07,802 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.02_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 12:43:07,802 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:43:07,802 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:43:07,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:43:07,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:43:07,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:43:07,930 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:43:07,931 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57a3a7ff-9027-49f5-9e3a-c3856b98767e/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:43:07,935 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:43:07,935 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:43:07,966 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:43:07,966 INFO L448 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_57a3a7ff-9027-49f5-9e3a-c3856b98767e/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:43:07,970 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:43:07,970 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:43:07,988 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:43:07,988 INFO L448 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_57a3a7ff-9027-49f5-9e3a-c3856b98767e/bin-2019/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 [2018-11-28 12:43:07,992 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:43:07,992 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57a3a7ff-9027-49f5-9e3a-c3856b98767e/bin-2019/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 [2018-11-28 12:43:08,015 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 12:43:08,015 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:43:08,042 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 12:43:08,043 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:43:08,043 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:43:08,043 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:43:08,043 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:43:08,043 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 12:43:08,044 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:43:08,044 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:43:08,044 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:43:08,044 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.02_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 12:43:08,044 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:43:08,044 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:43:08,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:43:08,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:43:08,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:43:08,104 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:43:08,108 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 12:43:08,109 INFO L122 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 [2018-11-28 12:43:08,110 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:43:08,111 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:43:08,111 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:43:08,111 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:43:08,114 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 12:43:08,114 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 12:43:08,122 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:43:08,122 INFO L122 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 [2018-11-28 12:43:08,123 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:43:08,123 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:43:08,123 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:43:08,123 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:43:08,123 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:43:08,124 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:43:08,124 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:43:08,131 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 12:43:08,135 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 12:43:08,136 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 12:43:08,137 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 12:43:08,137 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 12:43:08,137 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 12:43:08,138 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-11-28 12:43:08,139 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 12:43:08,171 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:43:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:43:08,180 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:43:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:43:08,193 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:43:08,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:43:08,242 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 [2018-11-28 12:43:08,244 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-11-28 12:43:08,294 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 35 transitions. Complement of second has 7 states. [2018-11-28 12:43:08,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-28 12:43:08,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 12:43:08,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2018-11-28 12:43:08,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2018-11-28 12:43:08,298 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:43:08,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-28 12:43:08,299 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:43:08,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2018-11-28 12:43:08,299 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:43:08,300 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2018-11-28 12:43:08,302 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 12:43:08,305 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2018-11-28 12:43:08,305 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-11-28 12:43:08,306 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-28 12:43:08,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2018-11-28 12:43:08,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 12:43:08,306 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-28 12:43:08,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2018-11-28 12:43:08,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2018-11-28 12:43:08,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-28 12:43:08,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2018-11-28 12:43:08,327 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2018-11-28 12:43:08,327 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2018-11-28 12:43:08,327 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 12:43:08,327 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2018-11-28 12:43:08,328 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 12:43:08,328 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:43:08,328 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:43:08,328 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 12:43:08,328 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 12:43:08,329 INFO L794 eck$LassoCheckResult]: Stem: 72#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 73#L10-2 assume !!(main_~x~0 >= 0 && main_~x~0 < 2147483647);main_~x~0 := 1 + main_~x~0;main_~y~0 := 1; 74#L13-2 [2018-11-28 12:43:08,329 INFO L796 eck$LassoCheckResult]: Loop: 74#L13-2 assume !!(main_~x~0 > main_~y~0);main_~y~0 := 1 + main_~y~0; 74#L13-2 [2018-11-28 12:43:08,329 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:43:08,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-28 12:43:08,329 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:43:08,329 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:43:08,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:43:08,331 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:43:08,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:43:08,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:43:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:43:08,337 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:43:08,337 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2018-11-28 12:43:08,337 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:43:08,338 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:43:08,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:43:08,339 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:43:08,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:43:08,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:43:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:43:08,342 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:43:08,342 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2018-11-28 12:43:08,342 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:43:08,343 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:43:08,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:43:08,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:43:08,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:43:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:43:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:43:08,369 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:43:08,369 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:43:08,369 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:43:08,369 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:43:08,370 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 12:43:08,370 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:43:08,370 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:43:08,370 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:43:08,370 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.02_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 12:43:08,370 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:43:08,370 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:43:08,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:43:08,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:43:08,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:43:08,407 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:43:08,407 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57a3a7ff-9027-49f5-9e3a-c3856b98767e/bin-2019/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 [2018-11-28 12:43:08,409 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:43:08,409 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:43:08,428 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:43:08,428 INFO L448 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/working_dir_57a3a7ff-9027-49f5-9e3a-c3856b98767e/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:43:08,431 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:43:08,431 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:43:08,449 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:43:08,450 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57a3a7ff-9027-49f5-9e3a-c3856b98767e/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:43:08,452 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:43:08,452 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57a3a7ff-9027-49f5-9e3a-c3856b98767e/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:43:08,472 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 12:43:08,472 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:43:08,578 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 12:43:08,580 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:43:08,580 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:43:08,580 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:43:08,580 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:43:08,580 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 12:43:08,580 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:43:08,580 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:43:08,580 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:43:08,580 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.02_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 12:43:08,580 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:43:08,580 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:43:08,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:43:08,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:43:08,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:43:08,622 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:43:08,623 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 12:43:08,623 INFO L122 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 [2018-11-28 12:43:08,624 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:43:08,624 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:43:08,625 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:43:08,625 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:43:08,627 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 12:43:08,627 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 12:43:08,631 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:43:08,632 INFO L122 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 [2018-11-28 12:43:08,632 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:43:08,633 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:43:08,633 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:43:08,633 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:43:08,634 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 12:43:08,635 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 12:43:08,640 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:43:08,640 INFO L122 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 [2018-11-28 12:43:08,641 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:43:08,641 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:43:08,642 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:43:08,642 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:43:08,642 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:43:08,643 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:43:08,643 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:43:08,647 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 12:43:08,651 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 12:43:08,651 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 12:43:08,651 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 12:43:08,651 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 12:43:08,652 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 12:43:08,652 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-28 12:43:08,652 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 12:43:08,700 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:43:08,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:43:08,705 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:43:08,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:43:08,709 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:43:08,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:43:08,709 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 [2018-11-28 12:43:08,709 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. [2018-11-28 12:43:08,723 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 13 states and 18 transitions. Complement of second has 5 states. [2018-11-28 12:43:08,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 12:43:08,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 12:43:08,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-28 12:43:08,724 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2018-11-28 12:43:08,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:43:08,725 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-28 12:43:08,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:43:08,725 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-28 12:43:08,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:43:08,725 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2018-11-28 12:43:08,726 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 12:43:08,726 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 13 transitions. [2018-11-28 12:43:08,726 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-11-28 12:43:08,726 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2018-11-28 12:43:08,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2018-11-28 12:43:08,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 12:43:08,727 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2018-11-28 12:43:08,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2018-11-28 12:43:08,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 6. [2018-11-28 12:43:08,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-28 12:43:08,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2018-11-28 12:43:08,728 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-11-28 12:43:08,728 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-11-28 12:43:08,728 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 12:43:08,728 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2018-11-28 12:43:08,728 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 12:43:08,728 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:43:08,728 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:43:08,728 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2018-11-28 12:43:08,728 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 12:43:08,729 INFO L794 eck$LassoCheckResult]: Stem: 120#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 121#L10-2 assume !!(main_~x~0 >= 0 && main_~x~0 < 2147483647);main_~x~0 := 1 + main_~x~0;main_~y~0 := 1; 123#L13-2 assume !(main_~x~0 > main_~y~0); 118#L13-3 main_~x~0 := main_~x~0 - 2; 119#L10-2 assume !!(main_~x~0 >= 0 && main_~x~0 < 2147483647);main_~x~0 := 1 + main_~x~0;main_~y~0 := 1; 122#L13-2 [2018-11-28 12:43:08,729 INFO L796 eck$LassoCheckResult]: Loop: 122#L13-2 assume !!(main_~x~0 > main_~y~0);main_~y~0 := 1 + main_~y~0; 122#L13-2 [2018-11-28 12:43:08,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:43:08,729 INFO L82 PathProgramCache]: Analyzing trace with hash 29867642, now seen corresponding path program 2 times [2018-11-28 12:43:08,729 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:43:08,729 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:43:08,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:43:08,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:43:08,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:43:08,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:43:08,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:43:08,771 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:43:08,771 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 12:43:08,773 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 12:43:08,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:43:08,773 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2018-11-28 12:43:08,774 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:43:08,774 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:43:08,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:43:08,775 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:43:08,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:43:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:43:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:43:08,791 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:43:08,792 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:43:08,792 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:43:08,792 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:43:08,792 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 12:43:08,792 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:43:08,792 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:43:08,792 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:43:08,792 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.02_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 12:43:08,793 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:43:08,793 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:43:08,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:43:08,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:43:08,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:43:08,844 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:43:08,845 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57a3a7ff-9027-49f5-9e3a-c3856b98767e/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:43:08,852 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:43:08,852 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:43:08,871 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:43:08,871 INFO L448 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57a3a7ff-9027-49f5-9e3a-c3856b98767e/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:43:08,880 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:43:08,880 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57a3a7ff-9027-49f5-9e3a-c3856b98767e/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:43:08,901 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 12:43:08,902 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:43:09,007 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 12:43:09,009 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:43:09,009 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:43:09,009 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:43:09,009 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:43:09,009 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 12:43:09,009 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:43:09,010 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:43:09,010 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:43:09,010 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.02_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 12:43:09,010 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:43:09,010 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:43:09,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:43:09,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:43:09,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:43:09,053 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:43:09,053 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 12:43:09,053 INFO L122 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 [2018-11-28 12:43:09,054 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:43:09,054 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:43:09,054 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:43:09,055 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:43:09,056 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 12:43:09,056 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 12:43:09,060 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:43:09,061 INFO L122 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 [2018-11-28 12:43:09,061 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:43:09,062 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:43:09,062 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:43:09,062 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:43:09,062 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:43:09,063 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:43:09,063 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:43:09,067 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 12:43:09,071 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 12:43:09,071 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 12:43:09,072 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 12:43:09,072 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 12:43:09,072 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 12:43:09,072 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-28 12:43:09,072 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 12:43:09,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:43:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:43:09,103 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:43:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:43:09,106 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:43:09,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:43:09,106 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 [2018-11-28 12:43:09,107 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-28 12:43:09,117 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 5 states. [2018-11-28 12:43:09,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 12:43:09,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 12:43:09,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-28 12:43:09,118 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 1 letters. [2018-11-28 12:43:09,118 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:43:09,118 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 12:43:09,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:43:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:43:09,138 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:43:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:43:09,142 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:43:09,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:43:09,143 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 12:43:09,143 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-28 12:43:09,150 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 5 states. [2018-11-28 12:43:09,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 12:43:09,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 12:43:09,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-28 12:43:09,151 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 1 letters. [2018-11-28 12:43:09,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:43:09,151 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 12:43:09,163 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:43:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:43:09,169 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:43:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:43:09,174 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:43:09,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:43:09,174 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 12:43:09,175 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-28 12:43:09,184 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 9 states and 11 transitions. Complement of second has 4 states. [2018-11-28 12:43:09,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 12:43:09,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 12:43:09,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-28 12:43:09,185 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 1 letters. [2018-11-28 12:43:09,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:43:09,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2018-11-28 12:43:09,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:43:09,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-28 12:43:09,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:43:09,187 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 11 transitions. [2018-11-28 12:43:09,187 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 12:43:09,187 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2018-11-28 12:43:09,187 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 12:43:09,188 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 12:43:09,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 12:43:09,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 12:43:09,188 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:43:09,188 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:43:09,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 12:43:09,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:43:09,191 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2018-11-28 12:43:09,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:43:09,193 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-28 12:43:09,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 12:43:09,193 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-28 12:43:09,193 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 12:43:09,193 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:43:09,194 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 12:43:09,194 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 12:43:09,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 12:43:09,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 12:43:09,194 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:43:09,194 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:43:09,194 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:43:09,194 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 12:43:09,194 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:43:09,194 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 12:43:09,194 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 12:43:09,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 12:43:09 BoogieIcfgContainer [2018-11-28 12:43:09,199 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 12:43:09,199 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:43:09,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:43:09,199 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:43:09,200 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:43:07" (3/4) ... [2018-11-28 12:43:09,202 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 12:43:09,202 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:43:09,203 INFO L168 Benchmark]: Toolchain (without parser) took 2116.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 958.7 MB in the beginning and 880.3 MB in the end (delta: 78.3 MB). Peak memory consumption was 181.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:43:09,204 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:43:09,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 133.19 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.7 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:43:09,205 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.05 ms. Allocated memory is still 1.0 GB. Free memory is still 947.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:43:09,205 INFO L168 Benchmark]: Boogie Preprocessor took 15.36 ms. Allocated memory is still 1.0 GB. Free memory is still 947.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:43:09,205 INFO L168 Benchmark]: RCFGBuilder took 212.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 947.7 MB in the beginning and 1.1 GB in the end (delta: -140.7 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:43:09,206 INFO L168 Benchmark]: BuchiAutomizer took 1725.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 880.3 MB in the end (delta: 204.6 MB). Peak memory consumption was 204.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:43:09,206 INFO L168 Benchmark]: Witness Printer took 3.03 ms. Allocated memory is still 1.1 GB. Free memory is still 880.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:43:09,208 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 133.19 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.7 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.05 ms. Allocated memory is still 1.0 GB. Free memory is still 947.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.36 ms. Allocated memory is still 1.0 GB. Free memory is still 947.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 212.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 947.7 MB in the beginning and 1.1 GB in the end (delta: -140.7 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1725.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 880.3 MB in the end (delta: 204.6 MB). Peak memory consumption was 204.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.03 ms. Allocated memory is still 1.1 GB. Free memory is still 880.3 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, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 5 locations. One deterministic module has affine ranking function -1 * y + x and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 15 SDtfs, 18 SDslu, 6 SDs, 0 SdLazy, 42 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax202 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq158 hnf93 smp96 dnf100 smp100 tf111 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...