./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2e94e6aa 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-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.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 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 21:33:33,514 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 21:33:33,516 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 21:33:33,530 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 21:33:33,531 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 21:33:33,532 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 21:33:33,533 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 21:33:33,542 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 21:33:33,545 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 21:33:33,545 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 21:33:33,546 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 21:33:33,547 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 21:33:33,548 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 21:33:33,549 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 21:33:33,551 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 21:33:33,552 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 21:33:33,553 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 21:33:33,554 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 21:33:33,557 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 21:33:33,558 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 21:33:33,559 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 21:33:33,561 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 21:33:33,563 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 21:33:33,564 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 21:33:33,564 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 21:33:33,565 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 21:33:33,566 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 21:33:33,567 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 21:33:33,567 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 21:33:33,569 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 21:33:33,569 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 21:33:33,570 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 21:33:33,570 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 21:33:33,570 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 21:33:33,571 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 21:33:33,572 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 21:33:33,572 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-01-01 21:33:33,594 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 21:33:33,594 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 21:33:33,596 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 21:33:33,596 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 21:33:33,596 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 21:33:33,596 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-01 21:33:33,596 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-01 21:33:33,597 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-01 21:33:33,597 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-01 21:33:33,597 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-01 21:33:33,598 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-01 21:33:33,598 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 21:33:33,598 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 21:33:33,598 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 21:33:33,598 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 21:33:33,598 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-01 21:33:33,599 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-01 21:33:33,599 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-01 21:33:33,599 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 21:33:33,599 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-01 21:33:33,599 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 21:33:33,599 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-01 21:33:33,601 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 21:33:33,601 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 21:33:33,601 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-01 21:33:33,602 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 21:33:33,602 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 21:33:33,602 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-01 21:33:33,603 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-01 21:33:33,604 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 -> 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 [2019-01-01 21:33:33,660 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 21:33:33,676 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 21:33:33,680 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 21:33:33,682 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 21:33:33,682 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 21:33:33,683 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c [2019-01-01 21:33:33,743 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7ec88068/d52853a2cff44874bc93c9a480657b42/FLAGe4c172f87 [2019-01-01 21:33:34,203 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 21:33:34,204 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c [2019-01-01 21:33:34,211 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7ec88068/d52853a2cff44874bc93c9a480657b42/FLAGe4c172f87 [2019-01-01 21:33:34,575 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7ec88068/d52853a2cff44874bc93c9a480657b42 [2019-01-01 21:33:34,581 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 21:33:34,582 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 21:33:34,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 21:33:34,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 21:33:34,589 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 21:33:34,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 09:33:34" (1/1) ... [2019-01-01 21:33:34,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a9057ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:34, skipping insertion in model container [2019-01-01 21:33:34,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 09:33:34" (1/1) ... [2019-01-01 21:33:34,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 21:33:34,623 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 21:33:34,851 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 21:33:34,859 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 21:33:34,881 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 21:33:34,899 INFO L195 MainTranslator]: Completed translation [2019-01-01 21:33:34,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:34 WrapperNode [2019-01-01 21:33:34,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 21:33:34,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 21:33:34,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 21:33:34,901 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 21:33:34,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:34" (1/1) ... [2019-01-01 21:33:34,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:34" (1/1) ... [2019-01-01 21:33:34,943 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 21:33:34,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 21:33:34,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 21:33:34,944 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 21:33:34,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:34" (1/1) ... [2019-01-01 21:33:34,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:34" (1/1) ... [2019-01-01 21:33:34,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:34" (1/1) ... [2019-01-01 21:33:34,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:34" (1/1) ... [2019-01-01 21:33:34,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:34" (1/1) ... [2019-01-01 21:33:34,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:34" (1/1) ... [2019-01-01 21:33:34,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:34" (1/1) ... [2019-01-01 21:33:34,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 21:33:34,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 21:33:34,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 21:33:34,972 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 21:33:34,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:34" (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 [2019-01-01 21:33:35,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 21:33:35,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 21:33:35,502 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 21:33:35,502 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-01 21:33:35,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:33:35 BoogieIcfgContainer [2019-01-01 21:33:35,503 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 21:33:35,504 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-01 21:33:35,504 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-01 21:33:35,509 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-01 21:33:35,510 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:33:35,510 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.01 09:33:34" (1/3) ... [2019-01-01 21:33:35,511 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d07260a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 09:33:35, skipping insertion in model container [2019-01-01 21:33:35,512 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:33:35,512 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:33:34" (2/3) ... [2019-01-01 21:33:35,513 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d07260a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 09:33:35, skipping insertion in model container [2019-01-01 21:33:35,513 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:33:35,513 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:33:35" (3/3) ... [2019-01-01 21:33:35,516 INFO L375 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c [2019-01-01 21:33:35,624 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 21:33:35,625 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-01 21:33:35,625 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-01 21:33:35,625 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-01 21:33:35,626 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 21:33:35,626 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 21:33:35,626 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-01 21:33:35,627 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 21:33:35,627 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-01 21:33:35,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-01-01 21:33:35,693 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-01-01 21:33:35,693 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:33:35,694 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:33:35,704 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-01 21:33:35,705 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-01 21:33:35,705 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-01 21:33:35,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-01-01 21:33:35,707 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-01-01 21:33:35,708 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:33:35,708 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:33:35,709 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-01 21:33:35,709 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-01 21:33:35,723 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 8#L18true assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 5#L19-2true [2019-01-01 21:33:35,724 INFO L796 eck$LassoCheckResult]: Loop: 5#L19-2true assume !!(main_~x~0 >= 0);main_~y~0 := 1; 3#L21true assume !(main_~y~0 < main_~x~0); 12#L21-1true main_~x~0 := main_~x~0 - 1; 5#L19-2true [2019-01-01 21:33:35,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:33:35,736 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2019-01-01 21:33:35,738 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:33:35,739 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:33:35,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:35,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:33:35,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:35,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:33:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:33:35,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:33:35,842 INFO L82 PathProgramCache]: Analyzing trace with hash 43246, now seen corresponding path program 1 times [2019-01-01 21:33:35,842 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:33:35,843 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:33:35,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:35,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:33:35,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:33:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:33:35,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:33:35,859 INFO L82 PathProgramCache]: Analyzing trace with hash 29685291, now seen corresponding path program 1 times [2019-01-01 21:33:35,859 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:33:35,859 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:33:35,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:35,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:33:35,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:33:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:33:36,000 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 21:33:36,002 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 21:33:36,002 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 21:33:36,002 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 21:33:36,002 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-01 21:33:36,002 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:33:36,003 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 21:33:36,003 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 21:33:36,003 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c_Iteration1_Loop [2019-01-01 21:33:36,003 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 21:33:36,003 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 21:33:36,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:36,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:36,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:36,279 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 21:33:36,280 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) [2019-01-01 21:33:36,293 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:33:36,294 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:33:36,338 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:33:36,338 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:33:36,345 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:33:36,345 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:33:36,365 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:33:36,366 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 [2019-01-01 21:33:36,372 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:33:36,372 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) [2019-01-01 21:33:36,402 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-01 21:33:36,402 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:33:36,434 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-01 21:33:36,436 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 21:33:36,436 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 21:33:36,436 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 21:33:36,436 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 21:33:36,436 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-01 21:33:36,437 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:33:36,437 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 21:33:36,437 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 21:33:36,437 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c_Iteration1_Loop [2019-01-01 21:33:36,437 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 21:33:36,437 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 21:33:36,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:36,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:36,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:36,796 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 21:33:36,802 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-01 21:33:36,803 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 [2019-01-01 21:33:36,805 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:33:36,805 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:33:36,805 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:33:36,806 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:33:36,811 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 21:33:36,811 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 21:33:36,820 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:33:36,821 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 [2019-01-01 21:33:36,822 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:33:36,822 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:33:36,822 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:33:36,822 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:33:36,825 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 21:33:36,825 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 21:33:36,835 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:33:36,836 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 [2019-01-01 21:33:36,836 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:33:36,836 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 21:33:36,837 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:33:36,837 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:33:36,837 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:33:36,839 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 21:33:36,839 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 21:33:36,849 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-01 21:33:36,856 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-01 21:33:36,856 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-01-01 21:33:36,859 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-01 21:33:36,859 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-01 21:33:36,859 INFO L518 LassoAnalysis]: Proved termination. [2019-01-01 21:33:36,860 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2019-01-01 21:33:36,861 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-01 21:33:36,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:33:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:33:36,966 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:33:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:33:36,987 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:33:37,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 21:33:37,100 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-01-01 21:33:37,102 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 3 states. [2019-01-01 21:33:37,221 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 3 states. Result 30 states and 44 transitions. Complement of second has 7 states. [2019-01-01 21:33:37,223 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 [2019-01-01 21:33:37,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-01 21:33:37,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2019-01-01 21:33:37,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 2 letters. Loop has 3 letters. [2019-01-01 21:33:37,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:33:37,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 5 letters. Loop has 3 letters. [2019-01-01 21:33:37,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:33:37,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 2 letters. Loop has 6 letters. [2019-01-01 21:33:37,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:33:37,232 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 44 transitions. [2019-01-01 21:33:37,236 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 21:33:37,240 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 9 states and 13 transitions. [2019-01-01 21:33:37,241 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-01-01 21:33:37,242 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-01-01 21:33:37,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2019-01-01 21:33:37,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-01-01 21:33:37,243 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2019-01-01 21:33:37,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2019-01-01 21:33:37,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-01-01 21:33:37,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-01-01 21:33:37,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2019-01-01 21:33:37,269 INFO L728 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2019-01-01 21:33:37,269 INFO L608 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2019-01-01 21:33:37,269 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-01 21:33:37,269 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 13 transitions. [2019-01-01 21:33:37,270 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 21:33:37,270 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:33:37,270 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:33:37,271 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-01-01 21:33:37,271 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-01 21:33:37,271 INFO L794 eck$LassoCheckResult]: Stem: 87#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 88#L18 assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 89#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 82#L21 assume main_~y~0 < main_~x~0; 83#L22-2 [2019-01-01 21:33:37,271 INFO L796 eck$LassoCheckResult]: Loop: 83#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 83#L22-2 [2019-01-01 21:33:37,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:33:37,272 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2019-01-01 21:33:37,272 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:33:37,272 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:33:37,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:37,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:33:37,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:33:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:33:37,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:33:37,284 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2019-01-01 21:33:37,284 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:33:37,284 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:33:37,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:37,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:33:37,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:33:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:33:37,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:33:37,291 INFO L82 PathProgramCache]: Analyzing trace with hash 29684850, now seen corresponding path program 1 times [2019-01-01 21:33:37,292 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:33:37,292 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:33:37,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:37,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:33:37,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:33:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:33:37,403 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 21:33:37,404 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 21:33:37,404 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 21:33:37,404 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 21:33:37,404 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-01 21:33:37,404 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:33:37,404 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 21:33:37,404 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 21:33:37,405 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c_Iteration2_Lasso [2019-01-01 21:33:37,405 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 21:33:37,405 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 21:33:37,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:37,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:37,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:37,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:37,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:37,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:37,970 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 21:33:37,971 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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:33:37,984 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:33:37,984 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:33:38,012 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:33:38,012 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 [2019-01-01 21:33:38,020 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:33:38,020 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:33:38,024 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:33:38,024 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /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 [2019-01-01 21:33:38,047 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:33:38,047 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:33:38,051 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:33:38,051 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /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 [2019-01-01 21:33:38,071 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:33:38,072 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:33:38,090 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:33:38,091 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /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 [2019-01-01 21:33:38,118 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:33:38,118 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:33:38,142 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:33:38,143 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 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 [2019-01-01 21:33:38,147 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:33:38,147 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 [2019-01-01 21:33:38,178 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-01 21:33:38,178 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:33:50,285 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2019-01-01 21:33:50,294 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 21:33:50,294 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 21:33:50,294 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 21:33:50,294 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 21:33:50,294 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-01 21:33:50,295 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:33:50,295 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 21:33:50,295 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 21:33:50,295 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c_Iteration2_Lasso [2019-01-01 21:33:50,295 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 21:33:50,295 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 21:33:50,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:50,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:50,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:50,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:50,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:50,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:50,639 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 21:33:50,640 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-01 21:33:50,641 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 [2019-01-01 21:33:50,642 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:33:50,642 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:33:50,642 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:33:50,643 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:33:50,645 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 21:33:50,645 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 21:33:50,650 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:33:50,651 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 [2019-01-01 21:33:50,651 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:33:50,652 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:33:50,652 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:33:50,652 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:33:50,657 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 21:33:50,657 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 21:33:50,744 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-01 21:33:50,780 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-01-01 21:33:50,780 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-01-01 21:33:50,782 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-01 21:33:50,787 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2019-01-01 21:33:50,787 INFO L518 LassoAnalysis]: Proved termination. [2019-01-01 21:33:50,787 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 2147483645 Supporting invariants [-1*ULTIMATE.start_main_~x~0 + 1073741823 >= 0, 1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2019-01-01 21:33:50,841 INFO L297 tatePredicateManager]: 0 out of 2 supporting invariants were superfluous and have been removed [2019-01-01 21:33:51,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:33:51,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:33:51,110 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:33:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:33:51,269 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:33:51,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 21:33:51,270 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 1 loop predicates [2019-01-01 21:33:51,270 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6 Second operand 4 states. [2019-01-01 21:33:51,594 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 20 states and 28 transitions. Complement of second has 7 states. [2019-01-01 21:33:51,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2019-01-01 21:33:51,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-01-01 21:33:51,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2019-01-01 21:33:51,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 4 letters. Loop has 1 letters. [2019-01-01 21:33:51,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:33:51,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 5 letters. Loop has 1 letters. [2019-01-01 21:33:51,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:33:51,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 4 letters. Loop has 2 letters. [2019-01-01 21:33:51,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:33:51,600 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2019-01-01 21:33:51,602 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 21:33:51,603 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 15 states and 21 transitions. [2019-01-01 21:33:51,603 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-01-01 21:33:51,603 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-01-01 21:33:51,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 21 transitions. [2019-01-01 21:33:51,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-01-01 21:33:51,603 INFO L705 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2019-01-01 21:33:51,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 21 transitions. [2019-01-01 21:33:51,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2019-01-01 21:33:51,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-01-01 21:33:51,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2019-01-01 21:33:51,606 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-01-01 21:33:51,606 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-01-01 21:33:51,606 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2019-01-01 21:33:51,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2019-01-01 21:33:51,607 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 21:33:51,607 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:33:51,607 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:33:51,608 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2019-01-01 21:33:51,608 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-01 21:33:51,608 INFO L794 eck$LassoCheckResult]: Stem: 169#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 170#L18 assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 171#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 172#L21 assume main_~y~0 < main_~x~0; 167#L22-2 assume !(main_~y~0 < main_~x~0); 168#L21-1 main_~x~0 := main_~x~0 - 1; 174#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 164#L21 assume main_~y~0 < main_~x~0; 165#L22-2 [2019-01-01 21:33:51,608 INFO L796 eck$LassoCheckResult]: Loop: 165#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 165#L22-2 [2019-01-01 21:33:51,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:33:51,609 INFO L82 PathProgramCache]: Analyzing trace with hash -421925037, now seen corresponding path program 1 times [2019-01-01 21:33:51,609 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:33:51,609 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:33:51,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:51,611 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:33:51,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:33:51,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 21:33:51,654 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 21:33:51,655 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-01 21:33:51,657 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-01-01 21:33:51,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:33:51,657 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 2 times [2019-01-01 21:33:51,658 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:33:51,658 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:33:51,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:51,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:33:51,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:33:51,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:33:51,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 21:33:51,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 21:33:51,689 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2019-01-01 21:33:51,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 21:33:51,731 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2019-01-01 21:33:51,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 21:33:51,733 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2019-01-01 21:33:51,735 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 21:33:51,735 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 18 transitions. [2019-01-01 21:33:51,736 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-01-01 21:33:51,736 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-01-01 21:33:51,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2019-01-01 21:33:51,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-01-01 21:33:51,737 INFO L705 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2019-01-01 21:33:51,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2019-01-01 21:33:51,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-01-01 21:33:51,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-01-01 21:33:51,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2019-01-01 21:33:51,739 INFO L728 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-01-01 21:33:51,740 INFO L608 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-01-01 21:33:51,740 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2019-01-01 21:33:51,740 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2019-01-01 21:33:51,740 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 21:33:51,741 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:33:51,741 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:33:51,741 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2019-01-01 21:33:51,741 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-01 21:33:51,742 INFO L794 eck$LassoCheckResult]: Stem: 201#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 202#L18 assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 203#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 198#L21 assume main_~y~0 < main_~x~0; 199#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 205#L22-2 assume !(main_~y~0 < main_~x~0); 208#L21-1 main_~x~0 := main_~x~0 - 1; 206#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 196#L21 assume main_~y~0 < main_~x~0; 197#L22-2 [2019-01-01 21:33:51,742 INFO L796 eck$LassoCheckResult]: Loop: 197#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 197#L22-2 [2019-01-01 21:33:51,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:33:51,742 INFO L82 PathProgramCache]: Analyzing trace with hash -193177154, now seen corresponding path program 1 times [2019-01-01 21:33:51,742 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:33:51,742 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:33:51,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:51,744 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 21:33:51,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:33:51,861 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 21:33:51,861 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-01 21:33:51,862 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-01 21:33:51,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:33:51,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:33:51,887 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:33:51,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 21:33:51,977 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-01 21:33:51,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-01-01 21:33:51,977 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-01-01 21:33:51,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:33:51,978 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 3 times [2019-01-01 21:33:51,978 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:33:51,978 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:33:51,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:51,980 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:33:51,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:33:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:33:52,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-01 21:33:52,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-01-01 21:33:52,061 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. cyclomatic complexity: 7 Second operand 8 states. [2019-01-01 21:33:52,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 21:33:52,269 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2019-01-01 21:33:52,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-01-01 21:33:52,271 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2019-01-01 21:33:52,273 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 21:33:52,273 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 14 states and 16 transitions. [2019-01-01 21:33:52,273 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-01-01 21:33:52,274 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-01-01 21:33:52,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 16 transitions. [2019-01-01 21:33:52,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-01-01 21:33:52,274 INFO L705 BuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-01-01 21:33:52,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 16 transitions. [2019-01-01 21:33:52,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 11. [2019-01-01 21:33:52,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-01-01 21:33:52,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-01-01 21:33:52,276 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-01-01 21:33:52,276 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-01-01 21:33:52,276 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2019-01-01 21:33:52,276 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2019-01-01 21:33:52,277 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 21:33:52,277 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:33:52,277 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:33:52,277 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1] [2019-01-01 21:33:52,278 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-01 21:33:52,278 INFO L794 eck$LassoCheckResult]: Stem: 283#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 284#L18 assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 285#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 281#L21 assume main_~y~0 < main_~x~0; 282#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 287#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 289#L22-2 assume !(main_~y~0 < main_~x~0); 288#L21-1 main_~x~0 := main_~x~0 - 1; 286#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 279#L21 assume main_~y~0 < main_~x~0; 280#L22-2 [2019-01-01 21:33:52,278 INFO L796 eck$LassoCheckResult]: Loop: 280#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 280#L22-2 [2019-01-01 21:33:52,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:33:52,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1691927373, now seen corresponding path program 2 times [2019-01-01 21:33:52,278 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:33:52,278 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:33:52,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:52,280 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 21:33:52,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:33:52,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:33:52,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:33:52,291 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 4 times [2019-01-01 21:33:52,291 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:33:52,291 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:33:52,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:52,292 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 21:33:52,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:33:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:33:52,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:33:52,296 INFO L82 PathProgramCache]: Analyzing trace with hash -910140986, now seen corresponding path program 3 times [2019-01-01 21:33:52,297 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:33:52,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:33:52,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:52,298 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 21:33:52,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:33:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:33:52,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:33:52,583 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 21:33:52,583 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 21:33:52,584 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 21:33:52,584 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 21:33:52,584 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-01 21:33:52,584 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:33:52,584 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 21:33:52,585 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 21:33:52,585 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c_Iteration5_Lasso [2019-01-01 21:33:52,585 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 21:33:52,585 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 21:33:52,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:52,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:52,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:52,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:52,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:52,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:52,729 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 21:33:52,729 INFO L412 LassoAnalysis]: Checking for nontermination... 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 [2019-01-01 21:33:52,735 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:33:52,735 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:33:52,749 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:33:52,749 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /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 [2019-01-01 21:33:52,777 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:33:52,778 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:33:52,792 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:33:52,793 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /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 [2019-01-01 21:33:52,818 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:33:52,818 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:33:52,821 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:33:52,821 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /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 [2019-01-01 21:33:52,843 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:33:52,843 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:33:52,863 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:33:52,863 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 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:33:52,869 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:33:52,869 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:33:52,897 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-01 21:33:52,897 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:33:52,991 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-01 21:33:52,993 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 21:33:52,993 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 21:33:52,993 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 21:33:52,993 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 21:33:52,994 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-01 21:33:52,994 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:33:52,994 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 21:33:52,994 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 21:33:52,994 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c_Iteration5_Lasso [2019-01-01 21:33:52,994 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 21:33:52,994 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 21:33:52,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:53,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:53,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:53,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:53,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:53,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:33:53,200 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 21:33:53,200 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-01 21:33:53,202 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 [2019-01-01 21:33:53,203 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:33:53,203 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 21:33:53,203 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:33:53,203 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:33:53,203 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:33:53,204 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 21:33:53,204 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 21:33:53,205 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:33:53,205 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 [2019-01-01 21:33:53,206 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:33:53,206 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 21:33:53,206 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:33:53,206 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:33:53,206 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:33:53,207 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 21:33:53,207 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 21:33:53,207 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:33:53,208 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 [2019-01-01 21:33:53,209 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:33:53,209 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 21:33:53,209 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:33:53,209 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:33:53,209 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:33:53,209 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 21:33:53,210 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 21:33:53,210 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:33:53,211 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 [2019-01-01 21:33:53,211 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:33:53,211 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:33:53,211 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:33:53,211 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:33:53,213 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 21:33:53,213 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 21:33:53,227 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:33:53,228 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 [2019-01-01 21:33:53,229 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:33:53,229 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:33:53,229 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:33:53,229 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:33:53,235 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 21:33:53,235 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 21:33:53,297 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-01 21:33:53,330 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-01-01 21:33:53,333 INFO L444 ModelExtractionUtils]: 4 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2019-01-01 21:33:53,333 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-01 21:33:53,335 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-01-01 21:33:53,335 INFO L518 LassoAnalysis]: Proved termination. [2019-01-01 21:33:53,335 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2019-01-01 21:33:53,363 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-01-01 21:33:53,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:33:53,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:33:53,543 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:33:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:33:53,563 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:33:53,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 21:33:53,564 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2019-01-01 21:33:53,564 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2019-01-01 21:33:53,629 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 19 states and 23 transitions. Complement of second has 6 states. [2019-01-01 21:33:53,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-01-01 21:33:53,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-01 21:33:53,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2019-01-01 21:33:53,631 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 10 letters. Loop has 1 letters. [2019-01-01 21:33:53,631 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:33:53,631 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-01-01 21:33:53,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:33:53,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:33:53,680 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:33:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:33:53,685 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:33:53,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 21:33:53,686 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2019-01-01 21:33:53,686 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2019-01-01 21:33:53,719 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 19 states and 23 transitions. Complement of second has 6 states. [2019-01-01 21:33:53,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-01-01 21:33:53,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-01 21:33:53,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2019-01-01 21:33:53,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 10 letters. Loop has 1 letters. [2019-01-01 21:33:53,721 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:33:53,721 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-01-01 21:33:53,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:33:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:33:53,758 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:33:53,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:33:53,766 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:33:53,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 21:33:53,767 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2019-01-01 21:33:53,767 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2019-01-01 21:33:53,853 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 14 states and 16 transitions. Complement of second has 5 states. [2019-01-01 21:33:53,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-01-01 21:33:53,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-01 21:33:53,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2019-01-01 21:33:53,855 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 1 letters. [2019-01-01 21:33:53,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:33:53,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 11 letters. Loop has 1 letters. [2019-01-01 21:33:53,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:33:53,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 2 letters. [2019-01-01 21:33:53,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:33:53,857 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2019-01-01 21:33:53,857 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 21:33:53,858 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2019-01-01 21:33:53,858 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-01 21:33:53,858 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-01 21:33:53,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-01 21:33:53,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 21:33:53,858 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 21:33:53,858 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 21:33:53,858 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 21:33:53,858 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2019-01-01 21:33:53,859 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-01 21:33:53,859 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 21:33:53,859 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-01 21:33:53,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.01 09:33:53 BoogieIcfgContainer [2019-01-01 21:33:53,868 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-01 21:33:53,869 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 21:33:53,869 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 21:33:53,869 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 21:33:53,870 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:33:35" (3/4) ... [2019-01-01 21:33:53,874 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-01 21:33:53,874 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 21:33:53,875 INFO L168 Benchmark]: Toolchain (without parser) took 19293.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 214.4 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -195.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2019-01-01 21:33:53,877 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:33:53,877 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.44 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-01 21:33:53,878 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.00 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:33:53,878 INFO L168 Benchmark]: Boogie Preprocessor took 28.08 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:33:53,879 INFO L168 Benchmark]: RCFGBuilder took 531.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -184.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-01-01 21:33:53,880 INFO L168 Benchmark]: BuchiAutomizer took 18364.36 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 64.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -22.5 MB). Peak memory consumption was 41.4 MB. Max. memory is 11.5 GB. [2019-01-01 21:33:53,881 INFO L168 Benchmark]: Witness Printer took 4.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:33:53,885 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 315.44 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 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 43.00 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.08 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 531.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -184.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 18364.36 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 64.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -22.5 MB). Peak memory consumption was 41.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 5 locations. One deterministic module has affine ranking function -2 * y + 2147483645 and consists of 5 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 18.2s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 16.3s. Construction of modules took 0.3s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 32 SDtfs, 37 SDslu, 11 SDs, 0 SdLazy, 108 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN2 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax158 hnf98 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf92 smp100 dnf100 smp100 tf102 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 12.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...