./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive/gcd02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/recursive/gcd02.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash 4ba31a8852254650e4ff6b6614669c496c01110f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 03:43:31,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:43:31,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:43:31,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:43:31,673 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:43:31,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:43:31,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:43:31,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:43:31,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:43:31,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:43:31,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:43:31,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:43:31,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:43:31,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:43:31,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:43:31,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:43:31,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:43:31,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:43:31,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:43:31,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:43:31,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:43:31,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:43:31,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:43:31,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:43:31,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:43:31,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:43:31,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:43:31,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:43:31,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:43:31,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:43:31,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:43:31,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:43:31,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:43:31,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:43:31,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:43:31,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:43:31,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:43:31,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:43:31,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:43:31,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:43:31,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:43:31,747 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:43:31,784 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:43:31,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:43:31,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:43:31,789 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:43:31,789 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:43:31,789 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:43:31,789 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:43:31,790 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:43:31,790 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:43:31,790 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:43:31,791 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:43:31,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:43:31,791 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:43:31,791 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:43:31,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:43:31,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:43:31,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:43:31,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:43:31,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:43:31,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:43:31,793 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:43:31,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:43:31,794 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:43:31,794 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:43:31,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:43:31,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:43:31,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:43:31,795 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:43:31,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:43:31,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:43:31,797 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:43:31,798 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:43:31,799 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ba31a8852254650e4ff6b6614669c496c01110f [2019-11-28 03:43:32,125 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:43:32,142 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:43:32,146 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:43:32,148 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:43:32,148 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:43:32,149 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/gcd02.c [2019-11-28 03:43:32,229 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd15adbf4/050dc96b143f4b93a1982ce31580f913/FLAGd4d028039 [2019-11-28 03:43:32,689 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:43:32,690 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/gcd02.c [2019-11-28 03:43:32,697 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd15adbf4/050dc96b143f4b93a1982ce31580f913/FLAGd4d028039 [2019-11-28 03:43:33,104 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd15adbf4/050dc96b143f4b93a1982ce31580f913 [2019-11-28 03:43:33,108 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:43:33,110 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:43:33,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:43:33,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:43:33,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:43:33,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:43:33" (1/1) ... [2019-11-28 03:43:33,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75166d8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33, skipping insertion in model container [2019-11-28 03:43:33,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:43:33" (1/1) ... [2019-11-28 03:43:33,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:43:33,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:43:33,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:43:33,317 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:43:33,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:43:33,352 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:43:33,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33 WrapperNode [2019-11-28 03:43:33,352 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:43:33,353 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:43:33,353 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:43:33,353 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:43:33,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (1/1) ... [2019-11-28 03:43:33,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (1/1) ... [2019-11-28 03:43:33,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:43:33,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:43:33,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:43:33,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:43:33,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (1/1) ... [2019-11-28 03:43:33,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (1/1) ... [2019-11-28 03:43:33,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (1/1) ... [2019-11-28 03:43:33,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (1/1) ... [2019-11-28 03:43:33,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (1/1) ... [2019-11-28 03:43:33,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (1/1) ... [2019-11-28 03:43:33,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (1/1) ... [2019-11-28 03:43:33,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:43:33,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:43:33,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:43:33,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:43:33,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (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 [2019-11-28 03:43:33,529 INFO L130 BoogieDeclarations]: Found specification of procedure divides [2019-11-28 03:43:33,530 INFO L138 BoogieDeclarations]: Found implementation of procedure divides [2019-11-28 03:43:33,530 INFO L130 BoogieDeclarations]: Found specification of procedure gcd [2019-11-28 03:43:33,530 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd [2019-11-28 03:43:33,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:43:33,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:43:33,745 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:43:33,746 INFO L297 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-28 03:43:33,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:43:33 BoogieIcfgContainer [2019-11-28 03:43:33,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:43:33,750 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:43:33,750 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:43:33,756 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:43:33,757 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:43:33,758 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:43:33" (1/3) ... [2019-11-28 03:43:33,759 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63833bee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:43:33, skipping insertion in model container [2019-11-28 03:43:33,759 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:43:33,760 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:43:33" (2/3) ... [2019-11-28 03:43:33,760 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63833bee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:43:33, skipping insertion in model container [2019-11-28 03:43:33,761 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:43:33,761 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:43:33" (3/3) ... [2019-11-28 03:43:33,763 INFO L371 chiAutomizerObserver]: Analyzing ICFG gcd02.c [2019-11-28 03:43:33,830 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:43:33,831 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:43:33,831 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:43:33,831 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:43:33,832 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:43:33,832 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:43:33,832 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:43:33,832 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:43:33,852 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states. [2019-11-28 03:43:33,891 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2019-11-28 03:43:33,892 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:43:33,892 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:43:33,902 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 03:43:33,902 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-28 03:43:33,902 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:43:33,902 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states. [2019-11-28 03:43:33,907 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2019-11-28 03:43:33,907 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:43:33,907 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:43:33,908 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 03:43:33,908 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-28 03:43:33,918 INFO L794 eck$LassoCheckResult]: Stem: 29#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_~z~0, main_~m~0, main_~n~0;main_~m~0 := main_#t~nondet3;havoc main_#t~nondet3; 27#L42true assume !(main_~m~0 <= 0 || main_~m~0 > 2147483647);main_~n~0 := main_#t~nondet4;havoc main_#t~nondet4; 32#L46true assume !(main_~n~0 <= 0 || main_~n~0 > 2147483647); 5#L49true assume main_~m~0 > 0 && main_~n~0 > 0; 24#L50true call main_#t~ret5 := gcd(main_~m~0, main_~n~0);< 19#gcdENTRYtrue [2019-11-28 03:43:33,919 INFO L796 eck$LassoCheckResult]: Loop: 19#gcdENTRYtrue ~y1 := #in~y1;~y2 := #in~y2; 31#L16true assume !(~y1 <= 0 || ~y2 <= 0); 6#L16-2true assume !(~y1 == ~y2); 3#L23true assume ~y1 > ~y2; 21#L24true call #t~ret0 := gcd(~y1 - ~y2, ~y2);< 19#gcdENTRYtrue [2019-11-28 03:43:33,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:43:33,929 INFO L82 PathProgramCache]: Analyzing trace with hash 62188830, now seen corresponding path program 1 times [2019-11-28 03:43:33,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:43:33,941 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286855434] [2019-11-28 03:43:33,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:43:34,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:34,043 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:43:34,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:43:34,045 INFO L82 PathProgramCache]: Analyzing trace with hash 40301400, now seen corresponding path program 1 times [2019-11-28 03:43:34,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:43:34,045 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267130312] [2019-11-28 03:43:34,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:43:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:34,063 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:43:34,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:43:34,065 INFO L82 PathProgramCache]: Analyzing trace with hash -851791781, now seen corresponding path program 1 times [2019-11-28 03:43:34,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:43:34,066 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533067036] [2019-11-28 03:43:34,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:43:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:34,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:34,093 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:43:34,279 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:43:34,280 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:43:34,280 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:43:34,281 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:43:34,281 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 03:43:34,281 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:34,281 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:43:34,282 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:43:34,282 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd02.c_Iteration1_Loop [2019-11-28 03:43:34,282 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:43:34,283 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:43:34,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:34,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:34,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:34,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:34,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:34,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:34,405 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:43:34,406 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:34,418 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:34,419 INFO L160 nArgumentSynthesizer]: Using integer mode. 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) [2019-11-28 03:43:34,450 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 03:43:34,450 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:34,477 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 03:43:34,479 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:43:34,479 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:43:34,479 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:43:34,480 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:43:34,480 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:43:34,480 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:34,480 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:43:34,480 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:43:34,481 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd02.c_Iteration1_Loop [2019-11-28 03:43:34,481 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:43:34,481 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:43:34,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:34,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:34,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:34,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:34,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:34,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:34,568 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:43:34,574 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2019-11-28 03:43:34,586 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:34,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:34,589 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:43:34,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:34,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:43:34,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:34,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:43:34,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:34,598 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:34,618 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:34,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:34,620 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:43:34,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:34,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:43:34,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:34,623 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:43:34,623 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:43:34,628 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:43:34,636 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-28 03:43:34,636 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. 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 [2019-11-28 03:43:34,645 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:43:34,646 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 03:43:34,646 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:43:34,647 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_#in~y1) = 1*gcd_#in~y1 Supporting invariants [] [2019-11-28 03:43:34,653 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-28 03:43:34,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:43:34,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:43:34,723 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 03:43:34,725 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:43:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:43:34,750 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 03:43:34,751 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:43:34,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:43:34,838 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2019-11-28 03:43:34,840 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states. Second operand 5 states. [2019-11-28 03:43:35,055 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states.. Second operand 5 states. Result 145 states and 201 transitions. Complement of second has 35 states. [2019-11-28 03:43:35,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2019-11-28 03:43:35,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-28 03:43:35,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 60 transitions. [2019-11-28 03:43:35,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 60 transitions. Stem has 5 letters. Loop has 5 letters. [2019-11-28 03:43:35,064 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:43:35,065 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 60 transitions. Stem has 10 letters. Loop has 5 letters. [2019-11-28 03:43:35,065 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:43:35,065 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 60 transitions. Stem has 5 letters. Loop has 10 letters. [2019-11-28 03:43:35,066 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:43:35,067 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 145 states and 201 transitions. [2019-11-28 03:43:35,081 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2019-11-28 03:43:35,089 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 145 states to 61 states and 86 transitions. [2019-11-28 03:43:35,091 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2019-11-28 03:43:35,091 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2019-11-28 03:43:35,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 86 transitions. [2019-11-28 03:43:35,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:43:35,095 INFO L688 BuchiCegarLoop]: Abstraction has 61 states and 86 transitions. [2019-11-28 03:43:35,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 86 transitions. [2019-11-28 03:43:35,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 47. [2019-11-28 03:43:35,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-11-28 03:43:35,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2019-11-28 03:43:35,129 INFO L711 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2019-11-28 03:43:35,129 INFO L591 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2019-11-28 03:43:35,130 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:43:35,130 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 62 transitions. [2019-11-28 03:43:35,132 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2019-11-28 03:43:35,132 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:43:35,132 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:43:35,133 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:43:35,133 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-11-28 03:43:35,133 INFO L794 eck$LassoCheckResult]: Stem: 293#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_~z~0, main_~m~0, main_~n~0;main_~m~0 := main_#t~nondet3;havoc main_#t~nondet3; 291#L42 assume !(main_~m~0 <= 0 || main_~m~0 > 2147483647);main_~n~0 := main_#t~nondet4;havoc main_#t~nondet4; 292#L46 assume !(main_~n~0 <= 0 || main_~n~0 > 2147483647); 288#L49 assume main_~m~0 > 0 && main_~n~0 > 0; 273#L50 call main_#t~ret5 := gcd(main_~m~0, main_~n~0);< 276#gcdENTRY ~y1 := #in~y1;~y2 := #in~y2; 278#L16 assume !(~y1 <= 0 || ~y2 <= 0); 313#L16-2 assume !(~y1 == ~y2); 314#L23 assume !(~y1 > ~y2); 296#L26 call #t~ret1 := gcd(~y1, ~y2 - ~y1);< 301#gcdENTRY [2019-11-28 03:43:35,133 INFO L796 eck$LassoCheckResult]: Loop: 301#gcdENTRY ~y1 := #in~y1;~y2 := #in~y2; 311#L16 assume !(~y1 <= 0 || ~y2 <= 0); 310#L16-2 assume !(~y1 == ~y2); 308#L23 assume !(~y1 > ~y2); 297#L26 call #t~ret1 := gcd(~y1, ~y2 - ~y1);< 301#gcdENTRY [2019-11-28 03:43:35,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:43:35,134 INFO L82 PathProgramCache]: Analyzing trace with hash -851791686, now seen corresponding path program 1 times [2019-11-28 03:43:35,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:43:35,134 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232716760] [2019-11-28 03:43:35,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:43:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:35,171 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:43:35,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:43:35,172 INFO L82 PathProgramCache]: Analyzing trace with hash 40301495, now seen corresponding path program 1 times [2019-11-28 03:43:35,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:43:35,173 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732966540] [2019-11-28 03:43:35,173 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:43:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:35,193 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:43:35,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:43:35,196 INFO L82 PathProgramCache]: Analyzing trace with hash -99955042, now seen corresponding path program 2 times [2019-11-28 03:43:35,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:43:35,196 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736674577] [2019-11-28 03:43:35,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:43:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:35,253 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:43:35,357 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:43:35,357 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:43:35,357 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:43:35,357 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:43:35,357 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 03:43:35,358 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:35,358 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:43:35,358 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:43:35,358 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd02.c_Iteration2_Loop [2019-11-28 03:43:35,358 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:43:35,359 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:43:35,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:35,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:35,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:35,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:35,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:35,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:35,477 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:43:35,479 INFO L404 LassoAnalysis]: Checking for nontermination... 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 [2019-11-28 03:43:35,490 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:35,491 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 03:43:35,495 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:43:35,495 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_~y2=0} Honda state: {gcd_~y2=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) [2019-11-28 03:43:35,512 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:35,512 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:35,520 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:43:35,520 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_~y1=0} Honda state: {gcd_~y1=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) [2019-11-28 03:43:35,537 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:35,537 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:35,541 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:43:35,542 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#res=0} Honda state: {gcd_#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 [2019-11-28 03:43:35,556 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:35,559 INFO L160 nArgumentSynthesizer]: Using integer mode. 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) [2019-11-28 03:43:35,587 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 03:43:35,588 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:35,794 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 03:43:35,798 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:43:35,798 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:43:35,798 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:43:35,798 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:43:35,799 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:43:35,799 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:35,799 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:43:35,799 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:43:35,800 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd02.c_Iteration2_Loop [2019-11-28 03:43:35,800 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:43:35,800 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:43:35,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:35,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:35,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:35,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:35,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:35,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:35,907 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:43:35,907 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2019-11-28 03:43:35,921 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:35,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:35,924 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:43:35,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:35,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:43:35,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:35,925 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:43:35,926 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:35,928 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:43:35,944 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:35,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:35,947 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:43:35,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:35,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:43:35,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:35,950 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:43:35,950 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:35,954 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:43:35,960 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 03:43:35,960 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. 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) [2019-11-28 03:43:35,970 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:43:35,971 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 03:43:35,971 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:43:35,971 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_#in~y2) = 1*gcd_#in~y2 Supporting invariants [] Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:35,974 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-28 03:43:35,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:43:36,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:43:36,021 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 03:43:36,022 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:43:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:43:36,043 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 03:43:36,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:43:36,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:43:36,095 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2019-11-28 03:43:36,096 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 62 transitions. cyclomatic complexity: 18 Second operand 5 states. [2019-11-28 03:43:36,276 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 62 transitions. cyclomatic complexity: 18. Second operand 5 states. Result 142 states and 189 transitions. Complement of second has 31 states. [2019-11-28 03:43:36,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2019-11-28 03:43:36,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-28 03:43:36,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 36 transitions. [2019-11-28 03:43:36,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 36 transitions. Stem has 10 letters. Loop has 5 letters. [2019-11-28 03:43:36,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:43:36,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 36 transitions. Stem has 15 letters. Loop has 5 letters. [2019-11-28 03:43:36,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:43:36,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 36 transitions. Stem has 10 letters. Loop has 10 letters. [2019-11-28 03:43:36,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:43:36,281 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 142 states and 189 transitions. [2019-11-28 03:43:36,291 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-11-28 03:43:36,305 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 142 states to 118 states and 165 transitions. [2019-11-28 03:43:36,306 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 67 [2019-11-28 03:43:36,308 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 69 [2019-11-28 03:43:36,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 118 states and 165 transitions. [2019-11-28 03:43:36,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:43:36,311 INFO L688 BuchiCegarLoop]: Abstraction has 118 states and 165 transitions. [2019-11-28 03:43:36,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states and 165 transitions. [2019-11-28 03:43:36,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 87. [2019-11-28 03:43:36,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-11-28 03:43:36,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 116 transitions. [2019-11-28 03:43:36,337 INFO L711 BuchiCegarLoop]: Abstraction has 87 states and 116 transitions. [2019-11-28 03:43:36,337 INFO L591 BuchiCegarLoop]: Abstraction has 87 states and 116 transitions. [2019-11-28 03:43:36,337 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:43:36,337 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 87 states and 116 transitions. [2019-11-28 03:43:36,340 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:43:36,341 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:43:36,341 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:43:36,343 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:43:36,343 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-28 03:43:36,344 INFO L794 eck$LassoCheckResult]: Stem: 590#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_~z~0, main_~m~0, main_~n~0;main_~m~0 := main_#t~nondet3;havoc main_#t~nondet3; 588#L42 assume !(main_~m~0 <= 0 || main_~m~0 > 2147483647);main_~n~0 := main_#t~nondet4;havoc main_#t~nondet4; 589#L46 assume !(main_~n~0 <= 0 || main_~n~0 > 2147483647); 579#L49 assume main_~m~0 > 0 && main_~n~0 > 0; 560#L50 call main_#t~ret5 := gcd(main_~m~0, main_~n~0);< 586#gcdENTRY ~y1 := #in~y1;~y2 := #in~y2; 597#L16 assume !(~y1 <= 0 || ~y2 <= 0); 596#L16-2 assume ~y1 == ~y2;#res := ~y1; 585#gcdFINAL assume true; 593#gcdEXIT >#72#return; 583#L50-1 main_~z~0 := main_#t~ret5;havoc main_#t~ret5; 575#L51 call main_#t~ret6 := divides(main_~z~0, main_~m~0);< 587#dividesENTRY [2019-11-28 03:43:36,345 INFO L796 eck$LassoCheckResult]: Loop: 587#dividesENTRY ~n := #in~n;~m := #in~m; 591#L31 assume !(0 == ~m); 574#L34 assume !(~n > ~m); 576#L37 call #t~ret2 := divides(~n, ~m - ~n);< 587#dividesENTRY [2019-11-28 03:43:36,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:43:36,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1766113648, now seen corresponding path program 1 times [2019-11-28 03:43:36,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:43:36,346 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556618833] [2019-11-28 03:43:36,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:43:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:36,398 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:43:36,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:43:36,403 INFO L82 PathProgramCache]: Analyzing trace with hash 927678, now seen corresponding path program 1 times [2019-11-28 03:43:36,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:43:36,404 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626101469] [2019-11-28 03:43:36,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:43:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:36,426 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:43:36,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:43:36,429 INFO L82 PathProgramCache]: Analyzing trace with hash -853108307, now seen corresponding path program 1 times [2019-11-28 03:43:36,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:43:36,430 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403664677] [2019-11-28 03:43:36,430 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:43:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:36,469 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:43:36,711 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:43:36,712 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:43:36,712 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:43:36,712 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:43:36,712 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 03:43:36,712 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:36,713 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:43:36,713 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:43:36,713 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd02.c_Iteration3_Lasso [2019-11-28 03:43:36,713 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:43:36,713 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:43:36,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:36,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:36,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:36,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:36,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:36,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:36,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:36,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:36,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:36,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:36,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:36,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:36,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:36,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:36,909 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:43:36,909 INFO L404 LassoAnalysis]: Checking for nontermination... 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 [2019-11-28 03:43:36,915 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:36,915 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 03:43:36,919 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:43:36,919 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret6=0} Honda state: {ULTIMATE.start_main_#t~ret6=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) [2019-11-28 03:43:36,929 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:36,929 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:36,933 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:43:36,933 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret5=0} Honda state: {ULTIMATE.start_main_#t~ret5=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 [2019-11-28 03:43:36,945 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:36,945 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 03:43:36,949 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:43:36,949 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {divides_#res=0} Honda state: {divides_#res=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 [2019-11-28 03:43:36,967 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:36,967 INFO L160 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) [2019-11-28 03:43:36,993 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 03:43:36,993 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:37,007 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 03:43:37,010 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:43:37,010 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:43:37,010 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:43:37,010 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:43:37,010 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:43:37,010 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:37,011 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:43:37,011 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:43:37,011 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd02.c_Iteration3_Lasso [2019-11-28 03:43:37,011 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:43:37,011 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:43:37,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:37,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:37,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:37,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:37,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:37,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:37,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:37,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:37,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:37,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:37,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:37,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:37,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:37,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:37,144 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:43:37,145 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:37,151 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:37,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:37,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:43:37,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:37,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:43:37,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:37,154 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:43:37,154 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:43:37,157 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:37,172 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:37,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:37,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:43:37,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:37,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:43:37,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:37,175 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:43:37,175 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:43:37,180 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:43:37,200 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:37,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:37,202 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:43:37,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:37,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:43:37,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:37,204 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:43:37,205 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:37,207 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:43:37,217 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:37,225 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:37,225 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:43:37,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:37,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:43:37,226 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:37,226 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:43:37,226 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:43:37,233 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:43:37,242 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:37,244 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:37,244 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:37,244 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-28 03:43:37,244 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:37,268 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-11-28 03:43:37,268 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-28 03:43:37,303 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:43:37,348 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2019-11-28 03:43:37,348 INFO L444 ModelExtractionUtils]: 3 out of 16 variables were initially zero. Simplification set additionally 7 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:43:37,354 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:37,360 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 4. [2019-11-28 03:43:37,360 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:43:37,360 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(divides_#in~m) = 1*divides_#in~m Supporting invariants [1*divides_#in~n - 1 >= 0, 1*divides_#in~m >= 0] [2019-11-28 03:43:37,369 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2019-11-28 03:43:37,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:43:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:43:37,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-28 03:43:37,421 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:43:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:43:37,538 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 03:43:37,539 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:43:37,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:43:37,580 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.6 stem predicates 3 loop predicates [2019-11-28 03:43:37,580 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 87 states and 116 transitions. cyclomatic complexity: 34 Second operand 9 states. [2019-11-28 03:43:37,918 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 87 states and 116 transitions. cyclomatic complexity: 34. Second operand 9 states. Result 119 states and 153 transitions. Complement of second has 21 states. [2019-11-28 03:43:37,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 6 stem states 2 non-accepting loop states 2 accepting loop states [2019-11-28 03:43:37,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-28 03:43:37,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 31 transitions. [2019-11-28 03:43:37,920 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 31 transitions. Stem has 12 letters. Loop has 4 letters. [2019-11-28 03:43:37,921 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:43:37,921 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 31 transitions. Stem has 16 letters. Loop has 4 letters. [2019-11-28 03:43:37,921 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:43:37,922 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 31 transitions. Stem has 12 letters. Loop has 8 letters. [2019-11-28 03:43:37,923 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:43:37,925 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 119 states and 153 transitions. [2019-11-28 03:43:37,933 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:43:37,941 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 119 states to 101 states and 134 transitions. [2019-11-28 03:43:37,943 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 66 [2019-11-28 03:43:37,943 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 67 [2019-11-28 03:43:37,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 134 transitions. [2019-11-28 03:43:37,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:43:37,946 INFO L688 BuchiCegarLoop]: Abstraction has 101 states and 134 transitions. [2019-11-28 03:43:37,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 134 transitions. [2019-11-28 03:43:37,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 91. [2019-11-28 03:43:37,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-11-28 03:43:37,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 123 transitions. [2019-11-28 03:43:37,962 INFO L711 BuchiCegarLoop]: Abstraction has 91 states and 123 transitions. [2019-11-28 03:43:37,963 INFO L591 BuchiCegarLoop]: Abstraction has 91 states and 123 transitions. [2019-11-28 03:43:37,963 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 03:43:37,963 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 123 transitions. [2019-11-28 03:43:37,966 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:43:37,968 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:43:37,969 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:43:37,970 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:43:37,970 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-28 03:43:37,970 INFO L794 eck$LassoCheckResult]: Stem: 918#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_~z~0, main_~m~0, main_~n~0;main_~m~0 := main_#t~nondet3;havoc main_#t~nondet3; 916#L42 assume !(main_~m~0 <= 0 || main_~m~0 > 2147483647);main_~n~0 := main_#t~nondet4;havoc main_#t~nondet4; 917#L46 assume !(main_~n~0 <= 0 || main_~n~0 > 2147483647); 910#L49 assume main_~m~0 > 0 && main_~n~0 > 0; 884#L50 call main_#t~ret5 := gcd(main_~m~0, main_~n~0);< 914#gcdENTRY ~y1 := #in~y1;~y2 := #in~y2; 931#L16 assume !(~y1 <= 0 || ~y2 <= 0); 935#L16-2 assume !(~y1 == ~y2); 932#L23 assume ~y1 > ~y2; 890#L24 call #t~ret0 := gcd(~y1 - ~y2, ~y2);< 928#gcdENTRY ~y1 := #in~y1;~y2 := #in~y2; 930#L16 assume !(~y1 <= 0 || ~y2 <= 0); 964#L16-2 assume ~y1 == ~y2;#res := ~y1; 892#gcdFINAL assume true; 922#gcdEXIT >#68#return; 943#L24-1 #res := #t~ret0;havoc #t~ret0; 936#gcdFINAL assume true; 925#gcdEXIT >#72#return; 909#L50-1 main_~z~0 := main_#t~ret5;havoc main_#t~ret5; 903#L51 call main_#t~ret6 := divides(main_~z~0, main_~m~0);< 915#dividesENTRY [2019-11-28 03:43:37,971 INFO L796 eck$LassoCheckResult]: Loop: 915#dividesENTRY ~n := #in~n;~m := #in~m; 919#L31 assume !(0 == ~m); 902#L34 assume !(~n > ~m); 904#L37 call #t~ret2 := divides(~n, ~m - ~n);< 915#dividesENTRY [2019-11-28 03:43:37,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:43:37,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1175107907, now seen corresponding path program 1 times [2019-11-28 03:43:37,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:43:37,973 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324248667] [2019-11-28 03:43:37,973 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:43:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:38,016 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:43:38,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:43:38,019 INFO L82 PathProgramCache]: Analyzing trace with hash 927678, now seen corresponding path program 2 times [2019-11-28 03:43:38,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:43:38,019 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841891802] [2019-11-28 03:43:38,020 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:43:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:38,034 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:43:38,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:43:38,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1672900608, now seen corresponding path program 1 times [2019-11-28 03:43:38,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:43:38,040 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110749980] [2019-11-28 03:43:38,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:43:38,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:38,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:38,065 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:43:38,378 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:43:38,378 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:43:38,379 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:43:38,379 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:43:38,379 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 03:43:38,379 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,379 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:43:38,379 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:43:38,379 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd02.c_Iteration4_Lasso [2019-11-28 03:43:38,379 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:43:38,379 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:43:38,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,528 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:43:38,528 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:43:38,543 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:38,543 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,547 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:43:38,547 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret5=0} Honda state: {ULTIMATE.start_main_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,552 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:38,552 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 03:43:38,555 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:43:38,555 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {divides_~n=0} Honda state: {divides_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,561 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:38,561 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 03:43:38,564 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:43:38,564 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,571 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:38,571 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 03:43:38,577 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:43:38,577 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~m~0=0} Honda state: {ULTIMATE.start_main_~m~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,588 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:38,589 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 03:43:38,591 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:43:38,591 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=0} Honda state: {ULTIMATE.start_main_~z~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,597 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:38,597 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 03:43:38,599 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:43:38,599 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {divides_#res=0} Honda state: {divides_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,605 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:38,605 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 03:43:38,608 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:43:38,608 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret6=0} Honda state: {ULTIMATE.start_main_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,613 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:38,613 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 03:43:38,616 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:43:38,616 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {divides_#t~ret2=0} Honda state: {divides_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,626 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:38,626 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 03:43:38,629 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:43:38,629 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~n~0=0} Honda state: {ULTIMATE.start_main_~n~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,641 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:38,641 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 03:43:38,647 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:43:38,647 INFO L440 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 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,652 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:38,652 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 03:43:38,655 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:43:38,655 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_#t~ret7=0} Honda state: {ULTIMATE.start_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Exception during sending of exit command (exit): Broken pipe No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,662 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:38,662 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 03:43:38,665 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:43:38,665 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {divides_~m=0} Honda state: {divides_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,671 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:38,671 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 03:43:38,679 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:43:38,679 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:43:38,686 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:38,686 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:43:38,703 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 03:43:38,703 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,715 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 03:43:38,717 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:43:38,717 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:43:38,717 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:43:38,717 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:43:38,717 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:43:38,718 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,718 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:43:38,718 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:43:38,718 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd02.c_Iteration4_Lasso [2019-11-28 03:43:38,718 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:43:38,718 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:43:38,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:38,854 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:43:38,854 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:43:38,866 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:38,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:38,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:43:38,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:38,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:43:38,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:38,869 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:43:38,870 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,871 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,876 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:38,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:38,877 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:43:38,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:38,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:43:38,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:38,878 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:43:38,878 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:43:38,880 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,886 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:38,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:38,888 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:43:38,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:38,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:43:38,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:38,889 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:43:38,890 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:43:38,891 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,897 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:38,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:38,899 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:43:38,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:38,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:43:38,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:38,899 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:43:38,900 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:43:38,901 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,927 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:38,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:38,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:43:38,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:38,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:43:38,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:38,930 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:43:38,930 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:43:38,933 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,942 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:38,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:38,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:43:38,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:38,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:43:38,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:38,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:43:38,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:43:38,946 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,953 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:38,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:38,955 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:43:38,956 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:38,956 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:43:38,956 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:38,956 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:43:38,957 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:43:38,959 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,964 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:38,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:38,967 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:43:38,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:38,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:43:38,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:38,968 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:43:38,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:43:38,969 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,974 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:38,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:38,976 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:43:38,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:38,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:43:38,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:38,976 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:43:38,977 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:43:38,978 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,983 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:38,985 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:38,985 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:43:38,985 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:38,985 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:43:38,985 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:38,985 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:43:38,986 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:43:38,987 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:38,992 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:38,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:38,994 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:43:38,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:38,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:43:38,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:38,995 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:43:38,995 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:43:38,997 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:39,005 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:39,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:39,006 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:43:39,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:39,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:43:39,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:39,007 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:43:39,008 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:43:39,009 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:39,017 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:39,018 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:39,018 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:39,018 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-28 03:43:39,018 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:39,027 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-11-28 03:43:39,028 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-28 03:43:39,062 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:43:39,102 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2019-11-28 03:43:39,102 INFO L444 ModelExtractionUtils]: 2 out of 16 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:39,105 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:43:39,114 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2019-11-28 03:43:39,114 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:43:39,115 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(divides_#in~m) = 1*divides_#in~m Supporting invariants [2*divides_#in~n - 1 >= 0] [2019-11-28 03:43:39,120 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-28 03:43:39,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:43:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:43:39,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-28 03:43:39,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:43:39,246 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:43:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:43:39,326 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 03:43:39,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:43:39,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:43:39,374 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.7 stem predicates 3 loop predicates [2019-11-28 03:43:39,375 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 91 states and 123 transitions. cyclomatic complexity: 37 Second operand 10 states. [2019-11-28 03:43:39,691 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 91 states and 123 transitions. cyclomatic complexity: 37. Second operand 10 states. Result 115 states and 148 transitions. Complement of second has 23 states. [2019-11-28 03:43:39,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 7 stem states 2 non-accepting loop states 2 accepting loop states [2019-11-28 03:43:39,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-28 03:43:39,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 32 transitions. [2019-11-28 03:43:39,693 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 32 transitions. Stem has 20 letters. Loop has 4 letters. [2019-11-28 03:43:39,694 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:43:39,694 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 32 transitions. Stem has 24 letters. Loop has 4 letters. [2019-11-28 03:43:39,694 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:43:39,694 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 32 transitions. Stem has 20 letters. Loop has 8 letters. [2019-11-28 03:43:39,694 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:43:39,694 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 115 states and 148 transitions. [2019-11-28 03:43:39,697 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:43:39,698 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 115 states to 93 states and 124 transitions. [2019-11-28 03:43:39,698 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 58 [2019-11-28 03:43:39,699 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2019-11-28 03:43:39,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 124 transitions. [2019-11-28 03:43:39,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:43:39,699 INFO L688 BuchiCegarLoop]: Abstraction has 93 states and 124 transitions. [2019-11-28 03:43:39,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 124 transitions. [2019-11-28 03:43:39,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2019-11-28 03:43:39,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-11-28 03:43:39,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 122 transitions. [2019-11-28 03:43:39,713 INFO L711 BuchiCegarLoop]: Abstraction has 91 states and 122 transitions. [2019-11-28 03:43:39,713 INFO L591 BuchiCegarLoop]: Abstraction has 91 states and 122 transitions. [2019-11-28 03:43:39,713 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-28 03:43:39,713 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 122 transitions. [2019-11-28 03:43:39,719 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 03:43:39,719 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:43:39,719 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:43:39,720 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:43:39,721 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-28 03:43:39,721 INFO L794 eck$LassoCheckResult]: Stem: 1267#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_~z~0, main_~m~0, main_~n~0;main_~m~0 := main_#t~nondet3;havoc main_#t~nondet3; 1265#L42 assume !(main_~m~0 <= 0 || main_~m~0 > 2147483647);main_~n~0 := main_#t~nondet4;havoc main_#t~nondet4; 1266#L46 assume !(main_~n~0 <= 0 || main_~n~0 > 2147483647); 1254#L49 assume main_~m~0 > 0 && main_~n~0 > 0; 1234#L50 call main_#t~ret5 := gcd(main_~m~0, main_~n~0);< 1263#gcdENTRY ~y1 := #in~y1;~y2 := #in~y2; 1292#L16 assume !(~y1 <= 0 || ~y2 <= 0); 1290#L16-2 assume !(~y1 == ~y2); 1287#L23 assume !(~y1 > ~y2); 1237#L26 call #t~ret1 := gcd(~y1, ~y2 - ~y1);< 1284#gcdENTRY ~y1 := #in~y1;~y2 := #in~y2; 1273#L16 assume !(~y1 <= 0 || ~y2 <= 0); 1257#L16-2 assume !(~y1 == ~y2); 1236#L23 assume ~y1 > ~y2; 1239#L24 call #t~ret0 := gcd(~y1 - ~y2, ~y2);< 1247#gcdENTRY ~y1 := #in~y1;~y2 := #in~y2; 1248#L16 assume !(~y1 <= 0 || ~y2 <= 0); 1255#L16-2 assume ~y1 == ~y2;#res := ~y1; 1256#gcdFINAL assume true; 1321#gcdEXIT >#68#return; 1319#L24-1 #res := #t~ret0;havoc #t~ret0; 1320#gcdFINAL assume true; 1283#gcdEXIT >#70#return; 1276#L26-1 #res := #t~ret1;havoc #t~ret1; 1275#gcdFINAL assume true; 1274#gcdEXIT >#72#return; 1253#L50-1 main_~z~0 := main_#t~ret5;havoc main_#t~ret5; 1251#L51 call main_#t~ret6 := divides(main_~z~0, main_~m~0);< 1264#dividesENTRY [2019-11-28 03:43:39,721 INFO L796 eck$LassoCheckResult]: Loop: 1264#dividesENTRY ~n := #in~n;~m := #in~m; 1268#L31 assume !(0 == ~m); 1250#L34 assume !(~n > ~m); 1252#L37 call #t~ret2 := divides(~n, ~m - ~n);< 1264#dividesENTRY [2019-11-28 03:43:39,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:43:39,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1141063152, now seen corresponding path program 1 times [2019-11-28 03:43:39,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:43:39,722 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075319542] [2019-11-28 03:43:39,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:43:39,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:39,744 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:43:39,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:43:39,745 INFO L82 PathProgramCache]: Analyzing trace with hash 927678, now seen corresponding path program 3 times [2019-11-28 03:43:39,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:43:39,746 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065270878] [2019-11-28 03:43:39,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:43:39,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:39,753 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:43:39,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:43:39,754 INFO L82 PathProgramCache]: Analyzing trace with hash -212675027, now seen corresponding path program 1 times [2019-11-28 03:43:39,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:43:39,754 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763464351] [2019-11-28 03:43:39,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:43:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:43:39,777 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:43:40,221 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:43:40,222 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:43:40,222 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:43:40,222 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:43:40,222 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 03:43:40,222 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:40,222 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:43:40,222 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:43:40,222 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd02.c_Iteration5_Lasso [2019-11-28 03:43:40,222 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:43:40,223 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:43:40,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,352 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:43:40,353 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:40,361 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:40,361 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 03:43:40,364 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:43:40,364 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret6=0} Honda state: {ULTIMATE.start_main_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:40,370 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:40,370 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 03:43:40,378 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:43:40,378 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret5=0} Honda state: {ULTIMATE.start_main_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:40,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:40,385 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 03:43:40,387 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 03:43:40,387 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~m~0=0} Honda state: {ULTIMATE.start_main_~m~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:40,397 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 03:43:40,397 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:40,407 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 03:43:40,407 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 03:43:40,421 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 03:43:40,423 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:43:40,423 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:43:40,424 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:43:40,424 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:43:40,424 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:43:40,424 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:40,424 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:43:40,424 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:43:40,424 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd02.c_Iteration5_Lasso [2019-11-28 03:43:40,424 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:43:40,424 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:43:40,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:43:40,550 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:43:40,551 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:43:40,561 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:40,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:40,563 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:43:40,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:40,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:43:40,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:40,565 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:43:40,565 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:40,567 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:43:40,575 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:40,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:40,577 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:43:40,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:40,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:43:40,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:40,578 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:43:40,578 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:40,580 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:43:40,588 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:40,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:40,590 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:43:40,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:40,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:43:40,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:40,591 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:43:40,591 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:40,593 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:43:40,603 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:43:40,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:40,605 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:43:40,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:40,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:43:40,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:40,606 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:43:40,606 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:40,608 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:43:40,615 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:40,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:43:40,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:43:40,616 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-28 03:43:40,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:43:40,637 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-11-28 03:43:40,637 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-28 03:43:40,673 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:43:40,712 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2019-11-28 03:43:40,712 INFO L444 ModelExtractionUtils]: 2 out of 16 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:43:40,716 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:43:40,721 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2019-11-28 03:43:40,721 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:43:40,721 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(divides_#in~m) = 1*divides_#in~m Supporting invariants [3*divides_#in~n - 1 >= 0] [2019-11-28 03:43:40,728 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-11-28 03:43:40,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:43:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:43:40,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-28 03:43:40,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:43:40,868 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:43:40,895 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 03:43:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:43:40,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 03:43:40,968 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:43:41,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:43:41,023 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.8 stem predicates 3 loop predicates [2019-11-28 03:43:41,023 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 91 states and 122 transitions. cyclomatic complexity: 36 Second operand 11 states. [2019-11-28 03:43:41,504 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 91 states and 122 transitions. cyclomatic complexity: 36. Second operand 11 states. Result 101 states and 132 transitions. Complement of second has 23 states. [2019-11-28 03:43:41,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 8 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-28 03:43:41,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-28 03:43:41,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 25 transitions. [2019-11-28 03:43:41,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 25 transitions. Stem has 28 letters. Loop has 4 letters. [2019-11-28 03:43:41,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:43:41,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 25 transitions. Stem has 32 letters. Loop has 4 letters. [2019-11-28 03:43:41,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:43:41,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 25 transitions. Stem has 28 letters. Loop has 8 letters. [2019-11-28 03:43:41,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:43:41,509 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 101 states and 132 transitions. [2019-11-28 03:43:41,512 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:43:41,512 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 101 states to 0 states and 0 transitions. [2019-11-28 03:43:41,512 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 03:43:41,512 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 03:43:41,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 03:43:41,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:43:41,513 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:43:41,513 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:43:41,513 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:43:41,513 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-28 03:43:41,513 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 03:43:41,513 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:43:41,514 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 03:43:41,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:43:41 BoogieIcfgContainer [2019-11-28 03:43:41,520 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:43:41,520 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:43:41,521 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:43:41,521 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:43:41,522 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:43:33" (3/4) ... [2019-11-28 03:43:41,526 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 03:43:41,526 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:43:41,529 INFO L168 Benchmark]: Toolchain (without parser) took 8417.80 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 308.8 MB). Free memory was 960.4 MB in the beginning and 855.9 MB in the end (delta: 104.4 MB). Peak memory consumption was 413.2 MB. Max. memory is 11.5 GB. [2019-11-28 03:43:41,529 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:43:41,530 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.42 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:43:41,531 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -190.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-11-28 03:43:41,531 INFO L168 Benchmark]: Boogie Preprocessor took 24.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-28 03:43:41,532 INFO L168 Benchmark]: RCFGBuilder took 279.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2019-11-28 03:43:41,533 INFO L168 Benchmark]: BuchiAutomizer took 7770.00 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 165.7 MB). Free memory was 1.1 GB in the beginning and 863.4 MB in the end (delta: 249.8 MB). Peak memory consumption was 415.4 MB. Max. memory is 11.5 GB. [2019-11-28 03:43:41,533 INFO L168 Benchmark]: Witness Printer took 5.70 ms. Allocated memory is still 1.3 GB. Free memory was 863.4 MB in the beginning and 855.9 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2019-11-28 03:43:41,538 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 241.42 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 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 90.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -190.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 279.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 7770.00 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 165.7 MB). Free memory was 1.1 GB in the beginning and 863.4 MB in the end (delta: 249.8 MB). Peak memory consumption was 415.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.70 ms. Allocated memory is still 1.3 GB. Free memory was 863.4 MB in the beginning and 855.9 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (0 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(y1) and consists of 8 locations. One deterministic module has affine ranking function \old(y2) and consists of 7 locations. One deterministic module has affine ranking function \old(m) and consists of 10 locations. One deterministic module has affine ranking function \old(m) and consists of 11 locations. One deterministic module has affine ranking function \old(m) and consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.7s and 6 iterations. TraceHistogramMax:3. Analysis of lassos took 4.7s. Construction of modules took 0.3s. Büchi inclusion checks took 2.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 57 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 91 states and ocurred in iteration 3. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 80 SDtfs, 180 SDslu, 88 SDs, 0 SdLazy, 281 SolverSat, 105 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital25 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq165 hnf93 smp95 dnf126 smp100 tf103 neg97 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 123ms VariablesStem: 2 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 22 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...