./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-crafted/aaron3_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/termination-crafted/aaron3_true-termination_true-valid-memsafety.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 b11f086006b59545dfe302b4d0afe0208312f571 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 23:14:38,372 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:14:38,378 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:14:38,394 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:14:38,394 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:14:38,395 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:14:38,397 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:14:38,399 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:14:38,401 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:14:38,402 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:14:38,403 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:14:38,406 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:14:38,407 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:14:38,408 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:14:38,409 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:14:38,412 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:14:38,414 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:14:38,422 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:14:38,428 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:14:38,433 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:14:38,434 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:14:38,438 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:14:38,441 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:14:38,441 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:14:38,444 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:14:38,448 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:14:38,449 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:14:38,449 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:14:38,452 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:14:38,454 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:14:38,454 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:14:38,454 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:14:38,458 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:14:38,458 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:14:38,460 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:14:38,460 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:14:38,461 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 23:14:38,488 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:14:38,488 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:14:38,490 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:14:38,490 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:14:38,490 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:14:38,491 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:14:38,493 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:14:38,493 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:14:38,493 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:14:38,493 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:14:38,494 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:14:38,494 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:14:38,494 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:14:38,494 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:14:38,494 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:14:38,494 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:14:38,495 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:14:38,495 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:14:38,495 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:14:38,495 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:14:38,495 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:14:38,495 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:14:38,499 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:14:38,499 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:14:38,500 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:14:38,500 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:14:38,500 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:14:38,500 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:14:38,502 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:14:38,503 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> b11f086006b59545dfe302b4d0afe0208312f571 [2018-11-28 23:14:38,579 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:14:38,597 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:14:38,602 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:14:38,604 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:14:38,604 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:14:38,605 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted/aaron3_true-termination_true-valid-memsafety.c [2018-11-28 23:14:38,674 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/554091948/49953490058c469a8cee11edb4765b31/FLAGcf082275b [2018-11-28 23:14:39,238 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:14:39,239 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted/aaron3_true-termination_true-valid-memsafety.c [2018-11-28 23:14:39,246 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/554091948/49953490058c469a8cee11edb4765b31/FLAGcf082275b [2018-11-28 23:14:39,597 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/554091948/49953490058c469a8cee11edb4765b31 [2018-11-28 23:14:39,602 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:14:39,604 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:14:39,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:14:39,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:14:39,610 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:14:39,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:14:39" (1/1) ... [2018-11-28 23:14:39,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@364f73cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:39, skipping insertion in model container [2018-11-28 23:14:39,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:14:39" (1/1) ... [2018-11-28 23:14:39,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:14:39,651 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:14:39,919 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:14:39,928 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:14:39,965 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:14:39,984 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:14:39,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:39 WrapperNode [2018-11-28 23:14:39,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:14:39,986 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:14:39,986 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:14:39,986 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:14:39,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:39" (1/1) ... [2018-11-28 23:14:40,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:39" (1/1) ... [2018-11-28 23:14:40,034 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:14:40,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:14:40,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:14:40,035 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:14:40,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:39" (1/1) ... [2018-11-28 23:14:40,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:39" (1/1) ... [2018-11-28 23:14:40,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:39" (1/1) ... [2018-11-28 23:14:40,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:39" (1/1) ... [2018-11-28 23:14:40,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:39" (1/1) ... [2018-11-28 23:14:40,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:39" (1/1) ... [2018-11-28 23:14:40,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:39" (1/1) ... [2018-11-28 23:14:40,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:14:40,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:14:40,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:14:40,061 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:14:40,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 23:14:40,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:14:40,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:14:40,530 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:14:40,530 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-28 23:14:40,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:14:40 BoogieIcfgContainer [2018-11-28 23:14:40,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:14:40,532 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:14:40,532 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:14:40,537 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:14:40,538 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:14:40,539 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:14:39" (1/3) ... [2018-11-28 23:14:40,540 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@534edb67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:14:40, skipping insertion in model container [2018-11-28 23:14:40,540 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:14:40,540 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:39" (2/3) ... [2018-11-28 23:14:40,541 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@534edb67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:14:40, skipping insertion in model container [2018-11-28 23:14:40,541 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:14:40,541 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:14:40" (3/3) ... [2018-11-28 23:14:40,544 INFO L375 chiAutomizerObserver]: Analyzing ICFG aaron3_true-termination_true-valid-memsafety.c [2018-11-28 23:14:40,642 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:14:40,643 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:14:40,643 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:14:40,643 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:14:40,644 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:14:40,644 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:14:40,644 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:14:40,644 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:14:40,644 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:14:40,662 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-11-28 23:14:40,684 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:14:40,684 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:14:40,685 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:14:40,693 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-28 23:14:40,693 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:14:40,693 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:14:40,694 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-11-28 23:14:40,695 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:14:40,695 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:14:40,696 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:14:40,696 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-28 23:14:40,696 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:14:40,706 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 6#L22true assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 7#L23true assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 9#L24true assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 12#L25true assume !!(main_~y~0 <= 1073741823); 13#L27-2true [2018-11-28 23:14:40,707 INFO L796 eck$LassoCheckResult]: Loop: 13#L27-2true assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 5#L27true assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := 1 + main_~y~0; 13#L27-2true [2018-11-28 23:14:40,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:40,715 INFO L82 PathProgramCache]: Analyzing trace with hash 29742506, now seen corresponding path program 1 times [2018-11-28 23:14:40,717 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:40,718 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:40,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:40,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:14:40,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:40,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:40,864 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:40,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 1 times [2018-11-28 23:14:40,864 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:40,865 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:40,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:40,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:14:40,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:40,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:40,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221836, now seen corresponding path program 1 times [2018-11-28 23:14:40,880 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:40,880 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:40,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:40,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:14:40,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:41,037 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:14:41,038 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:14:41,039 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:14:41,039 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:14:41,039 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:14:41,039 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:41,039 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:14:41,040 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:14:41,040 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration1_Loop [2018-11-28 23:14:41,040 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:14:41,040 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:14:41,069 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 23:14:41,095 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 23:14:41,109 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 23:14:41,126 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 23:14:41,385 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:14:41,386 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 23:14:41,400 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:14:41,400 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:14:41,456 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:14:41,456 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: [] [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Exception during sending of exit command (exit): Stream closed No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2018-11-28 23:14:41,469 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:14:41,469 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:41,521 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:14:41,522 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 23:14:41,541 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:14:41,541 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 23:14:41,583 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:14:41,583 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:14:41,845 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:14:41,848 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:14:41,848 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:14:41,848 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:14:41,848 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:14:41,848 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:14:41,848 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:41,849 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:14:41,849 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:14:41,849 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration1_Loop [2018-11-28 23:14:41,849 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:14:41,849 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:14:41,851 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 23:14:41,857 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 23:14:41,882 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 23:14:41,930 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 23:14:42,096 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:14:42,102 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:14:42,104 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 23:14:42,106 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:14:42,106 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:14:42,106 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:14:42,107 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:14:42,111 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:14:42,112 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:14:42,121 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:14:42,122 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 23:14:42,123 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:14:42,123 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:14:42,123 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:14:42,123 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:14:42,126 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:14:42,126 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:14:42,136 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:14:42,136 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 23:14:42,137 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:14:42,137 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:14:42,138 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:14:42,138 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:14:42,139 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:14:42,140 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:14:42,140 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:14:42,148 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:14:42,156 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:14:42,156 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:14:42,162 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:14:42,163 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:14:42,163 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:14:42,163 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~x~0 - 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2018-11-28 23:14:42,165 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:14:42,307 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:42,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:14:42,340 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:14:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:14:42,366 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:14:42,389 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 23:14:42,404 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 23:14:42,406 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 3 states. [2018-11-28 23:14:42,476 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 3 states. Result 31 states and 42 transitions. Complement of second has 8 states. [2018-11-28 23:14:42,477 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 23:14:42,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:14:42,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2018-11-28 23:14:42,482 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-28 23:14:42,483 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:14:42,484 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-28 23:14:42,484 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:14:42,484 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-28 23:14:42,484 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:14:42,486 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 42 transitions. [2018-11-28 23:14:42,490 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:14:42,494 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 12 states and 15 transitions. [2018-11-28 23:14:42,496 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-28 23:14:42,496 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-11-28 23:14:42,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2018-11-28 23:14:42,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:14:42,498 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-28 23:14:42,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2018-11-28 23:14:42,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-28 23:14:42,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-28 23:14:42,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2018-11-28 23:14:42,527 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-28 23:14:42,527 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-28 23:14:42,528 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:14:42,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2018-11-28 23:14:42,529 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:14:42,529 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:14:42,529 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:14:42,530 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:14:42,530 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:14:42,530 INFO L794 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 95#L22 assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 99#L23 assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 100#L24 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 101#L25 assume !!(main_~y~0 <= 1073741823); 103#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 96#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 92#L31 [2018-11-28 23:14:42,530 INFO L796 eck$LassoCheckResult]: Loop: 92#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 93#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 102#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 92#L31 [2018-11-28 23:14:42,531 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:42,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221843, now seen corresponding path program 1 times [2018-11-28 23:14:42,531 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:42,531 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:42,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:42,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:14:42,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:42,555 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:42,555 INFO L82 PathProgramCache]: Analyzing trace with hash 67272, now seen corresponding path program 1 times [2018-11-28 23:14:42,556 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:42,556 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:42,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:42,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:14:42,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:42,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:42,569 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:42,569 INFO L82 PathProgramCache]: Analyzing trace with hash -312117156, now seen corresponding path program 1 times [2018-11-28 23:14:42,570 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:42,570 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:42,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:42,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:14:42,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:42,669 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:14:42,669 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:14:42,670 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:14:42,670 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:14:42,670 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:14:42,670 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:42,670 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:14:42,671 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:14:42,671 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration2_Loop [2018-11-28 23:14:42,671 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:14:42,671 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:14:42,674 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 23:14:42,681 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 23:14:42,687 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 23:14:42,698 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 23:14:43,065 WARN L180 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-11-28 23:14:43,345 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:14:43,346 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2018-11-28 23:14:43,358 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:14:43,358 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:43,382 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:14:43,382 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 23:14:43,388 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:14:43,389 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:14:43,396 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:14:43,396 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=-1} Honda state: {ULTIMATE.start_main_#t~nondet4=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 23:14:43,419 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:14:43,419 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:14:43,441 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:14:43,441 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 23:14:43,447 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:14:43,447 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 23:14:43,492 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:14:43,492 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:02,136 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-28 23:15:02,146 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:15:02,146 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:15:02,146 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:15:02,146 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:15:02,146 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:15:02,147 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:02,147 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:15:02,147 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:15:02,147 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration2_Loop [2018-11-28 23:15:02,147 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:15:02,147 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:15:02,152 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 23:15:02,162 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 23:15:02,169 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 23:15:02,177 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 23:15:02,363 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:15:02,363 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:15:02,363 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 23:15:02,366 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:02,366 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:02,366 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:02,367 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:02,369 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:15:02,369 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:15:02,385 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:02,387 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 23:15:02,388 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:02,388 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:02,388 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:02,388 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-28 23:15:02,389 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:02,393 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-28 23:15:02,393 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:02,400 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:02,401 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 23:15:02,401 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:02,401 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:02,407 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:02,407 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:02,409 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:15:02,409 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:15:02,420 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:02,420 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 23:15:02,421 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:02,421 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:02,421 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:02,421 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:02,421 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:02,425 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:15:02,425 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:02,448 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:02,448 INFO L497 LassoAnalysis]: Using template '2-nested'. [2018-11-28 23:15:02,449 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 23:15:02,451 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:02,452 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:02,452 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:02,452 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-28 23:15:02,454 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-11-28 23:15:02,454 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-11-28 23:15:02,458 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:02,458 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 23:15:02,459 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:02,459 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:02,459 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:02,459 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-28 23:15:02,459 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-28 23:15:02,460 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:15:02,461 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:02,465 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:02,466 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 23:15:02,467 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:02,467 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:02,467 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:02,467 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-28 23:15:02,469 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-11-28 23:15:02,469 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-11-28 23:15:02,475 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:02,476 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 23:15:02,477 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:02,477 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:02,477 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:02,477 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:02,477 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-28 23:15:02,479 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2018-11-28 23:15:02,479 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:02,493 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:15:02,513 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 23:15:02,513 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:15:02,514 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:15:02,514 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:15:02,514 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:15:02,514 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 2*ULTIMATE.start_main_~z~0 f1 = 2*ULTIMATE.start_main_~tx~0 + 2*ULTIMATE.start_main_~z~0 + 2147483647 Supporting invariants [] [2018-11-28 23:15:02,515 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:15:02,776 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:02,794 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:02,811 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:02,951 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 27 [2018-11-28 23:15:03,229 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2018-11-28 23:15:03,231 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 23:15:03,231 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-28 23:15:03,231 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-11-28 23:15:03,476 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2018-11-28 23:15:03,490 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 17 states and 22 transitions. Complement of second has 6 states. [2018-11-28 23:15:03,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-28 23:15:03,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:15:03,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2018-11-28 23:15:03,493 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-28 23:15:03,494 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:03,494 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 10 letters. Loop has 3 letters. [2018-11-28 23:15:03,495 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:03,495 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 7 letters. Loop has 6 letters. [2018-11-28 23:15:03,495 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:03,496 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2018-11-28 23:15:03,497 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:15:03,498 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 22 transitions. [2018-11-28 23:15:03,498 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-28 23:15:03,498 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-28 23:15:03,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2018-11-28 23:15:03,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:15:03,499 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2018-11-28 23:15:03,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2018-11-28 23:15:03,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2018-11-28 23:15:03,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-28 23:15:03,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2018-11-28 23:15:03,501 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2018-11-28 23:15:03,502 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2018-11-28 23:15:03,502 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 23:15:03,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2018-11-28 23:15:03,503 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:15:03,503 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:15:03,503 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:15:03,503 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:15:03,504 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:15:03,504 INFO L794 eck$LassoCheckResult]: Stem: 183#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 184#L22 assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 188#L23 assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 189#L24 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 190#L25 assume !!(main_~y~0 <= 1073741823); 192#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 193#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 179#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 181#L27-2 [2018-11-28 23:15:03,504 INFO L796 eck$LassoCheckResult]: Loop: 181#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 185#L27 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := 1 + main_~y~0; 181#L27-2 [2018-11-28 23:15:03,504 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:03,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1295763161, now seen corresponding path program 2 times [2018-11-28 23:15:03,505 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:03,505 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:03,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:03,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:15:03,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:03,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:03,523 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:03,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 2 times [2018-11-28 23:15:03,524 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:03,524 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:03,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:03,525 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:15:03,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:03,530 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:03,531 INFO L82 PathProgramCache]: Analyzing trace with hash -312117149, now seen corresponding path program 1 times [2018-11-28 23:15:03,531 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:03,531 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:03,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:03,532 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:15:03,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:03,624 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:15:03,624 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:15:03,624 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:15:03,624 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:15:03,625 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:15:03,625 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:03,625 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:15:03,625 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:15:03,625 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration3_Loop [2018-11-28 23:15:03,625 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:15:03,625 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:15:03,628 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 23:15:03,663 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 23:15:03,680 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 23:15:03,685 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 23:15:03,772 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:15:03,772 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 23:15:03,777 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:03,777 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:03,781 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:03,781 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 23:15:03,803 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:03,803 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:03,823 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:03,823 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:03,829 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:03,829 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:03,849 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:03,850 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:03,855 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:03,855 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:03,882 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:15:03,882 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:04,126 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:15:04,128 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:15:04,128 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:15:04,128 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:15:04,129 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:15:04,129 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:15:04,129 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:04,129 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:15:04,129 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:15:04,129 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration3_Loop [2018-11-28 23:15:04,129 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:15:04,129 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:15:04,131 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 23:15:04,138 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 23:15:04,141 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 23:15:04,150 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 23:15:04,235 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:15:04,236 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:15:04,237 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 23:15:04,238 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:04,238 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:04,238 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:04,238 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:04,238 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:04,239 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:15:04,239 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:04,240 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:04,241 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 23:15:04,241 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:04,241 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:04,241 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:04,242 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:04,243 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:15:04,243 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:15:04,247 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:04,247 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 23:15:04,248 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:04,248 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:04,248 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:04,248 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:04,249 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:04,249 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:15:04,249 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:04,253 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:15:04,256 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:15:04,256 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:15:04,256 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:15:04,257 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:15:04,257 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:15:04,257 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-11-28 23:15:04,257 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:15:04,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:04,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:04,305 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:04,316 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:04,333 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 23:15:04,334 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 23:15:04,334 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-11-28 23:15:04,352 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 22 states and 29 transitions. Complement of second has 5 states. [2018-11-28 23:15:04,353 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 23:15:04,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:15:04,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-28 23:15:04,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-28 23:15:04,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:04,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2018-11-28 23:15:04,355 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:04,355 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 4 letters. [2018-11-28 23:15:04,355 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:04,355 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 29 transitions. [2018-11-28 23:15:04,356 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:15:04,357 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 23 transitions. [2018-11-28 23:15:04,357 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-28 23:15:04,357 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-11-28 23:15:04,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2018-11-28 23:15:04,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:15:04,358 INFO L705 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-28 23:15:04,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2018-11-28 23:15:04,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-28 23:15:04,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 23:15:04,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2018-11-28 23:15:04,361 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-28 23:15:04,361 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-28 23:15:04,361 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 23:15:04,361 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2018-11-28 23:15:04,363 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:15:04,363 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:15:04,364 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:15:04,364 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2018-11-28 23:15:04,365 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:15:04,365 INFO L794 eck$LassoCheckResult]: Stem: 272#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 273#L22 assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 276#L23 assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 277#L24 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 278#L25 assume !!(main_~y~0 <= 1073741823); 280#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 281#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 267#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 268#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 282#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 269#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 271#L27-2 [2018-11-28 23:15:04,365 INFO L796 eck$LassoCheckResult]: Loop: 271#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 274#L27 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := 1 + main_~y~0; 271#L27-2 [2018-11-28 23:15:04,365 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:04,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1085697206, now seen corresponding path program 3 times [2018-11-28 23:15:04,365 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:04,366 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:04,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:04,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:15:04,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:04,392 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:04,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 3 times [2018-11-28 23:15:04,392 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:04,393 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:04,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:04,394 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:15:04,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:04,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:04,399 INFO L82 PathProgramCache]: Analyzing trace with hash 322038932, now seen corresponding path program 2 times [2018-11-28 23:15:04,399 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:04,399 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:04,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:04,400 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:15:04,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:04,470 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:15:04,470 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:15:04,470 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:15:04,470 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:15:04,470 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:15:04,470 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:04,471 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:15:04,471 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:15:04,471 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration4_Loop [2018-11-28 23:15:04,471 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:15:04,471 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:15:04,472 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 23:15:04,483 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 23:15:04,487 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 23:15:04,491 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 23:15:04,579 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:15:04,580 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:04,585 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:04,585 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:04,611 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:15:04,611 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:04,934 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:15:04,936 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:15:04,936 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:15:04,936 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:15:04,936 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:15:04,937 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:15:04,937 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:04,937 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:15:04,937 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:15:04,937 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration4_Loop [2018-11-28 23:15:04,937 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:15:04,937 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:15:04,941 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 23:15:04,954 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 23:15:04,958 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 23:15:04,966 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 23:15:05,070 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:15:05,070 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:15:05,071 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 23:15:05,071 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:05,072 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:05,072 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:05,072 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:05,072 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:05,073 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:15:05,073 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:05,076 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:15:05,079 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:15:05,079 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:15:05,079 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:15:05,079 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:15:05,080 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:15:05,080 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-11-28 23:15:05,080 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:15:05,195 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:05,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:05,219 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:05,242 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:05,271 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 23:15:05,271 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 23:15:05,272 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand 3 states. [2018-11-28 23:15:05,294 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 20 states and 25 transitions. Complement of second has 5 states. [2018-11-28 23:15:05,296 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 23:15:05,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:15:05,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-28 23:15:05,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-28 23:15:05,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:05,297 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:15:05,309 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:05,322 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:05,328 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:05,338 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 23:15:05,339 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 23:15:05,339 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand 3 states. [2018-11-28 23:15:05,352 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 20 states and 25 transitions. Complement of second has 5 states. [2018-11-28 23:15:05,354 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 23:15:05,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:15:05,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-28 23:15:05,355 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-28 23:15:05,356 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:05,356 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:15:05,382 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:05,397 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:05,402 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:05,413 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 23:15:05,414 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 2 loop predicates [2018-11-28 23:15:05,414 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand 3 states. [2018-11-28 23:15:05,449 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 23 states and 29 transitions. Complement of second has 4 states. [2018-11-28 23:15:05,450 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 23:15:05,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:15:05,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2018-11-28 23:15:05,451 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-28 23:15:05,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:05,453 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 13 letters. Loop has 2 letters. [2018-11-28 23:15:05,453 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:05,453 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 11 letters. Loop has 4 letters. [2018-11-28 23:15:05,455 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:05,455 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 29 transitions. [2018-11-28 23:15:05,457 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:15:05,457 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2018-11-28 23:15:05,457 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:15:05,457 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:15:05,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:15:05,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:15:05,458 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:15:05,458 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:15:05,458 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:15:05,458 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-28 23:15:05,458 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:15:05,458 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:15:05,458 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 23:15:05,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:15:05 BoogieIcfgContainer [2018-11-28 23:15:05,468 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:15:05,468 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:15:05,468 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:15:05,468 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:15:05,469 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:14:40" (3/4) ... [2018-11-28 23:15:05,473 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 23:15:05,473 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:15:05,474 INFO L168 Benchmark]: Toolchain (without parser) took 25871.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 198.2 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -204.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:15:05,476 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:15:05,477 INFO L168 Benchmark]: CACSL2BoogieTranslator took 380.37 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:15:05,477 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.85 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:15:05,478 INFO L168 Benchmark]: Boogie Preprocessor took 25.84 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:15:05,479 INFO L168 Benchmark]: RCFGBuilder took 470.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -172.8 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-11-28 23:15:05,480 INFO L168 Benchmark]: BuchiAutomizer took 24936.00 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -49.5 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2018-11-28 23:15:05,480 INFO L168 Benchmark]: Witness Printer took 5.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:15:05,486 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 380.37 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.85 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.84 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 470.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -172.8 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 24936.00 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -49.5 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. 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 (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + -2 * y + 1 and consists of 5 locations. One deterministic module has 2-nested ranking function (if 2 * z > 0 then 1 else 0), (if 2 * z > 0 then 2 * z else 2 * tx + 2 * z + 2147483647) and consists of 4 locations. One deterministic module has affine ranking function -2 * y + 2 * x + 1 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * y + 2 * x + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 24.8s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 22.9s. Construction of modules took 0.1s. Büchi inclusion checks took 1.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 60 SDtfs, 60 SDslu, 8 SDs, 0 SdLazy, 39 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax159 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq142 hnf94 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 19.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...