./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive/MultCommutative_true-unreach-call_true-no-overflow_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/MultCommutative_true-unreach-call_true-no-overflow_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a755472942b72da612d26a2f3af20ed4332f07b5 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 09:34:11,780 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 09:34:11,781 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 09:34:11,789 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 09:34:11,789 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 09:34:11,790 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 09:34:11,791 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 09:34:11,792 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 09:34:11,793 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 09:34:11,794 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 09:34:11,794 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 09:34:11,794 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 09:34:11,795 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 09:34:11,796 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 09:34:11,796 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 09:34:11,797 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 09:34:11,797 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 09:34:11,799 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 09:34:11,800 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 09:34:11,801 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 09:34:11,802 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 09:34:11,803 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 09:34:11,804 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 09:34:11,804 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 09:34:11,805 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 09:34:11,805 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 09:34:11,806 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 09:34:11,807 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 09:34:11,807 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 09:34:11,808 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 09:34:11,808 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 09:34:11,809 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 09:34:11,809 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 09:34:11,809 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 09:34:11,810 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 09:34:11,810 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 09:34:11,810 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-23 09:34:11,821 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 09:34:11,821 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 09:34:11,822 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 09:34:11,822 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 09:34:11,822 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 09:34:11,822 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 09:34:11,823 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 09:34:11,823 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 09:34:11,823 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 09:34:11,823 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 09:34:11,823 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 09:34:11,823 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 09:34:11,823 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 09:34:11,823 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 09:34:11,823 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 09:34:11,824 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 09:34:11,824 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 09:34:11,824 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 09:34:11,824 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 09:34:11,824 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 09:34:11,824 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 09:34:11,824 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 09:34:11,824 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 09:34:11,824 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 09:34:11,825 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 09:34:11,825 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 09:34:11,825 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 09:34:11,825 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 09:34:11,825 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 09:34:11,825 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 09:34:11,825 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 09:34:11,826 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 09:34:11,826 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a755472942b72da612d26a2f3af20ed4332f07b5 [2018-11-23 09:34:11,849 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 09:34:11,859 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 09:34:11,861 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 09:34:11,863 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 09:34:11,863 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 09:34:11,863 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/../../sv-benchmarks/c/recursive/MultCommutative_true-unreach-call_true-no-overflow_true-termination.c [2018-11-23 09:34:11,906 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/data/8a6995f78/235a42555e0e44d999e1742bb371165f/FLAGe40073101 [2018-11-23 09:34:12,308 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 09:34:12,308 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/sv-benchmarks/c/recursive/MultCommutative_true-unreach-call_true-no-overflow_true-termination.c [2018-11-23 09:34:12,312 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/data/8a6995f78/235a42555e0e44d999e1742bb371165f/FLAGe40073101 [2018-11-23 09:34:12,323 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/data/8a6995f78/235a42555e0e44d999e1742bb371165f [2018-11-23 09:34:12,326 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 09:34:12,327 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 09:34:12,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 09:34:12,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 09:34:12,331 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 09:34:12,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:34:12" (1/1) ... [2018-11-23 09:34:12,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57fd911c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:12, skipping insertion in model container [2018-11-23 09:34:12,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:34:12" (1/1) ... [2018-11-23 09:34:12,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 09:34:12,359 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 09:34:12,484 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 09:34:12,487 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 09:34:12,500 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 09:34:12,512 INFO L195 MainTranslator]: Completed translation [2018-11-23 09:34:12,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:12 WrapperNode [2018-11-23 09:34:12,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 09:34:12,513 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 09:34:12,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 09:34:12,513 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 09:34:12,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:12" (1/1) ... [2018-11-23 09:34:12,524 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:12" (1/1) ... [2018-11-23 09:34:12,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 09:34:12,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 09:34:12,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 09:34:12,536 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 09:34:12,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:12" (1/1) ... [2018-11-23 09:34:12,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:12" (1/1) ... [2018-11-23 09:34:12,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:12" (1/1) ... [2018-11-23 09:34:12,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:12" (1/1) ... [2018-11-23 09:34:12,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:12" (1/1) ... [2018-11-23 09:34:12,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:12" (1/1) ... [2018-11-23 09:34:12,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:12" (1/1) ... [2018-11-23 09:34:12,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 09:34:12,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 09:34:12,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 09:34:12,547 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 09:34:12,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:12,623 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2018-11-23 09:34:12,623 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2018-11-23 09:34:12,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 09:34:12,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 09:34:12,727 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 09:34:12,728 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-23 09:34:12,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:34:12 BoogieIcfgContainer [2018-11-23 09:34:12,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 09:34:12,729 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 09:34:12,729 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 09:34:12,732 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 09:34:12,733 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 09:34:12,733 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 09:34:12" (1/3) ... [2018-11-23 09:34:12,734 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26cfe983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 09:34:12, skipping insertion in model container [2018-11-23 09:34:12,734 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 09:34:12,734 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:12" (2/3) ... [2018-11-23 09:34:12,735 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26cfe983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 09:34:12, skipping insertion in model container [2018-11-23 09:34:12,735 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 09:34:12,735 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:34:12" (3/3) ... [2018-11-23 09:34:12,736 INFO L375 chiAutomizerObserver]: Analyzing ICFG MultCommutative_true-unreach-call_true-no-overflow_true-termination.c [2018-11-23 09:34:12,778 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 09:34:12,779 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 09:34:12,779 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 09:34:12,779 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 09:34:12,779 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 09:34:12,779 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 09:34:12,779 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 09:34:12,779 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 09:34:12,779 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 09:34:12,789 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2018-11-23 09:34:12,808 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-23 09:34:12,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 09:34:12,808 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 09:34:12,815 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-23 09:34:12,815 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 09:34:12,815 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 09:34:12,816 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2018-11-23 09:34:12,818 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-23 09:34:12,818 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 09:34:12,818 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 09:34:12,818 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-23 09:34:12,818 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 09:34:12,823 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_~m~0, main_~n~0, main_~res1~0, main_~res2~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2; 8#L27true assume !(main_~m~0 < 0 || main_~m~0 > 46340);main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 10#L31true assume !(main_~n~0 < 0 || main_~n~0 > 46340); 16#L34true call main_#t~ret4 := mult(main_~m~0, main_~n~0);< 4#multENTRYtrue [2018-11-23 09:34:12,823 INFO L796 eck$LassoCheckResult]: Loop: 4#multENTRYtrue ~n := #in~n;~m := #in~m; 6#L16true assume ~m < 0; 3#L17true call #t~ret0 := mult(~n, -~m);< 4#multENTRYtrue [2018-11-23 09:34:12,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:12,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1390425, now seen corresponding path program 1 times [2018-11-23 09:34:12,829 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:34:12,830 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:34:12,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:12,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:34:12,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:12,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:12,905 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:12,905 INFO L82 PathProgramCache]: Analyzing trace with hash 29924, now seen corresponding path program 1 times [2018-11-23 09:34:12,905 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:34:12,905 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:34:12,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:12,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:34:12,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:12,914 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:12,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1527521652, now seen corresponding path program 1 times [2018-11-23 09:34:12,914 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:34:12,914 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:34:12,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:12,915 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:34:12,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:12,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:34:12,985 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:34:12,985 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 09:34:13,039 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:34:13,040 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:34:13,040 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:34:13,040 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:34:13,040 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 09:34:13,040 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:13,040 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:34:13,040 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:34:13,040 INFO L131 ssoRankerPreferences]: Filename of dumped script: MultCommutative_true-unreach-call_true-no-overflow_true-termination.c_Iteration1_Loop [2018-11-23 09:34:13,041 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:34:13,041 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:34:13,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:13,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:13,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:13,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:13,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:13,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:13,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:13,164 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:34:13,165 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:13,172 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:13,172 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:13,180 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:13,181 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:13,200 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:13,200 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:13,203 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:13,203 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:13,220 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:13,220 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:13,224 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:13,224 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:13,240 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:13,240 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:13,243 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:13,243 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:13,259 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:13,259 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:13,262 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:13,262 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:13,278 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:13,278 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:13,280 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:13,280 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:13,295 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:13,295 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:13,312 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 09:34:13,312 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:13,340 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 09:34:13,341 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:34:13,342 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:34:13,342 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:34:13,342 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:34:13,342 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 09:34:13,342 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:13,342 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:34:13,342 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:34:13,342 INFO L131 ssoRankerPreferences]: Filename of dumped script: MultCommutative_true-unreach-call_true-no-overflow_true-termination.c_Iteration1_Loop [2018-11-23 09:34:13,342 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:34:13,342 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:34:13,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:13,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:13,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:13,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:13,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:13,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:13,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:13,402 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:34:13,405 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 09:34:13,407 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:13,408 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:13,408 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:13,409 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:13,409 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:13,409 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:13,410 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:13,410 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:13,412 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:13,412 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:13,413 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:13,413 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:13,413 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:13,414 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:13,414 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:13,414 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:13,414 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:13,416 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:13,416 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:13,417 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:13,417 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:13,417 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:13,418 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:13,418 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:13,419 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:13,419 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:13,420 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:13,420 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:13,422 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:13,423 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:13,423 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:13,423 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:13,423 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:13,424 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:13,424 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:13,425 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:13,425 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:13,426 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:13,426 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:13,426 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:13,426 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:13,426 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:13,427 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:13,427 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:13,428 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:13,428 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:13,429 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:13,433 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:13,433 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:13,433 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:13,433 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:13,434 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:13,434 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:13,436 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:13,437 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:13,437 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:13,437 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:13,438 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:13,438 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:13,438 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:13,438 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:13,439 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:13,443 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 09:34:13,445 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2018-11-23 09:34:13,446 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 09:34:13,447 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 09:34:13,447 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 09:34:13,447 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 09:34:13,448 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2018-11-23 09:34:13,449 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 09:34:13,498 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:13,510 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:34:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:13,522 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:34:13,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:34:13,567 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-23 09:34:13,568 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states. Second operand 4 states. [2018-11-23 09:34:13,662 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states.. Second operand 4 states. Result 50 states and 65 transitions. Complement of second has 12 states. [2018-11-23 09:34:13,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-23 09:34:13,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 09:34:13,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-11-23 09:34:13,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-23 09:34:13,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:13,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-23 09:34:13,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:13,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 6 letters. [2018-11-23 09:34:13,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:13,671 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 65 transitions. [2018-11-23 09:34:13,675 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-23 09:34:13,682 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 31 states and 44 transitions. [2018-11-23 09:34:13,683 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2018-11-23 09:34:13,684 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2018-11-23 09:34:13,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 44 transitions. [2018-11-23 09:34:13,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 09:34:13,684 INFO L705 BuchiCegarLoop]: Abstraction has 31 states and 44 transitions. [2018-11-23 09:34:13,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 44 transitions. [2018-11-23 09:34:13,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2018-11-23 09:34:13,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-23 09:34:13,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2018-11-23 09:34:13,710 INFO L728 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2018-11-23 09:34:13,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 09:34:13,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 09:34:13,714 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 5 states. [2018-11-23 09:34:13,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:34:13,790 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2018-11-23 09:34:13,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 09:34:13,791 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2018-11-23 09:34:13,793 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-23 09:34:13,795 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 26 states and 33 transitions. [2018-11-23 09:34:13,795 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2018-11-23 09:34:13,795 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2018-11-23 09:34:13,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 33 transitions. [2018-11-23 09:34:13,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 09:34:13,796 INFO L705 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2018-11-23 09:34:13,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 33 transitions. [2018-11-23 09:34:13,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 22. [2018-11-23 09:34:13,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-23 09:34:13,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2018-11-23 09:34:13,800 INFO L728 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2018-11-23 09:34:13,801 INFO L608 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2018-11-23 09:34:13,801 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 09:34:13,801 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 27 transitions. [2018-11-23 09:34:13,802 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-23 09:34:13,803 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 09:34:13,803 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 09:34:13,803 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:34:13,803 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 09:34:13,804 INFO L794 eck$LassoCheckResult]: Stem: 199#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_~m~0, main_~n~0, main_~res1~0, main_~res2~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2; 197#L27 assume !(main_~m~0 < 0 || main_~m~0 > 46340);main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 198#L31 assume !(main_~n~0 < 0 || main_~n~0 > 46340); 192#L34 call main_#t~ret4 := mult(main_~m~0, main_~n~0);< 191#multENTRY ~n := #in~n;~m := #in~m; 193#L16 assume !(~m < 0); 194#L19 assume !(0 == ~m); 187#L22 call #t~ret1 := mult(~n, ~m - 1);< 190#multENTRY [2018-11-23 09:34:13,804 INFO L796 eck$LassoCheckResult]: Loop: 190#multENTRY ~n := #in~n;~m := #in~m; 205#L16 assume ~m < 0; 186#L17 call #t~ret0 := mult(~n, -~m);< 190#multENTRY [2018-11-23 09:34:13,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:13,804 INFO L82 PathProgramCache]: Analyzing trace with hash -108528961, now seen corresponding path program 1 times [2018-11-23 09:34:13,804 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:34:13,804 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:34:13,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:13,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:34:13,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:13,819 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:13,820 INFO L82 PathProgramCache]: Analyzing trace with hash 29924, now seen corresponding path program 2 times [2018-11-23 09:34:13,820 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:34:13,820 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:34:13,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:13,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:34:13,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:13,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:13,828 INFO L82 PathProgramCache]: Analyzing trace with hash 924096870, now seen corresponding path program 1 times [2018-11-23 09:34:13,828 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:34:13,828 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:34:13,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:13,829 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 09:34:13,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:13,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:34:13,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:34:13,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 09:34:13,932 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:34:13,932 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:34:13,932 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:34:13,932 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:34:13,932 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 09:34:13,932 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:13,932 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:34:13,932 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:34:13,932 INFO L131 ssoRankerPreferences]: Filename of dumped script: MultCommutative_true-unreach-call_true-no-overflow_true-termination.c_Iteration2_Loop [2018-11-23 09:34:13,933 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:34:13,933 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:34:13,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:13,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:13,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:13,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:13,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:13,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:13,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:13,973 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:34:13,973 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:13,975 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:13,975 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:13,978 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:13,978 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:14,003 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:14,003 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:14,005 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:14,005 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:14,029 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:14,029 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:14,032 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:14,032 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:14,047 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:14,047 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:14,049 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:14,050 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:14,065 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:14,065 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:14,067 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:14,067 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:14,083 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:14,083 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:14,085 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:14,085 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:14,102 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:14,102 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:14,121 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 09:34:14,121 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:14,144 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 09:34:14,145 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:34:14,145 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:34:14,145 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:34:14,145 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:34:14,145 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 09:34:14,145 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:14,145 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:34:14,145 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:34:14,145 INFO L131 ssoRankerPreferences]: Filename of dumped script: MultCommutative_true-unreach-call_true-no-overflow_true-termination.c_Iteration2_Loop [2018-11-23 09:34:14,145 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:34:14,145 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:34:14,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,190 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:34:14,190 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 09:34:14,191 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:14,191 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:14,191 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:14,192 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:14,192 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:14,192 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:14,192 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:14,192 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:14,193 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:14,194 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:14,194 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:14,194 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:14,195 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:14,197 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:14,197 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:14,198 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:14,198 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:14,199 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:14,199 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:14,200 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:14,200 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:14,200 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:14,200 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:14,200 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:14,201 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:14,201 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:14,202 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:14,202 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:14,202 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:14,202 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:14,203 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:14,203 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:14,203 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:14,203 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:14,203 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:14,204 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:14,205 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:14,206 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:14,207 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:14,207 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:14,207 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:14,207 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:14,208 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:14,208 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:14,209 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:14,209 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:14,209 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:14,210 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:14,210 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:14,210 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:14,210 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:14,211 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:14,211 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:14,213 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 09:34:14,215 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2018-11-23 09:34:14,216 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 09:34:14,216 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 09:34:14,216 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 09:34:14,216 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 09:34:14,216 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2018-11-23 09:34:14,217 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 09:34:14,237 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:14,252 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:34:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:14,264 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:34:14,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:34:14,287 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-23 09:34:14,288 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 6 Second operand 4 states. [2018-11-23 09:34:14,354 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 72 states and 91 transitions. Complement of second has 15 states. [2018-11-23 09:34:14,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2018-11-23 09:34:14,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 09:34:14,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2018-11-23 09:34:14,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 8 letters. Loop has 3 letters. [2018-11-23 09:34:14,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:14,357 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 11 letters. Loop has 3 letters. [2018-11-23 09:34:14,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:14,357 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 8 letters. Loop has 6 letters. [2018-11-23 09:34:14,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:14,358 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 91 transitions. [2018-11-23 09:34:14,360 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-23 09:34:14,362 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 50 states and 65 transitions. [2018-11-23 09:34:14,362 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2018-11-23 09:34:14,363 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2018-11-23 09:34:14,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 65 transitions. [2018-11-23 09:34:14,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 09:34:14,364 INFO L705 BuchiCegarLoop]: Abstraction has 50 states and 65 transitions. [2018-11-23 09:34:14,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 65 transitions. [2018-11-23 09:34:14,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 43. [2018-11-23 09:34:14,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-23 09:34:14,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2018-11-23 09:34:14,369 INFO L728 BuchiCegarLoop]: Abstraction has 43 states and 54 transitions. [2018-11-23 09:34:14,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 09:34:14,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-23 09:34:14,369 INFO L87 Difference]: Start difference. First operand 43 states and 54 transitions. Second operand 5 states. [2018-11-23 09:34:14,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:34:14,403 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2018-11-23 09:34:14,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 09:34:14,404 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 59 transitions. [2018-11-23 09:34:14,405 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2018-11-23 09:34:14,405 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 41 states and 47 transitions. [2018-11-23 09:34:14,406 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2018-11-23 09:34:14,406 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2018-11-23 09:34:14,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 47 transitions. [2018-11-23 09:34:14,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 09:34:14,406 INFO L705 BuchiCegarLoop]: Abstraction has 41 states and 47 transitions. [2018-11-23 09:34:14,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 47 transitions. [2018-11-23 09:34:14,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-23 09:34:14,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-23 09:34:14,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2018-11-23 09:34:14,410 INFO L728 BuchiCegarLoop]: Abstraction has 41 states and 47 transitions. [2018-11-23 09:34:14,410 INFO L608 BuchiCegarLoop]: Abstraction has 41 states and 47 transitions. [2018-11-23 09:34:14,410 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-23 09:34:14,410 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 47 transitions. [2018-11-23 09:34:14,411 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2018-11-23 09:34:14,411 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 09:34:14,411 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 09:34:14,412 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:34:14,412 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 09:34:14,412 INFO L794 eck$LassoCheckResult]: Stem: 461#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_~m~0, main_~n~0, main_~res1~0, main_~res2~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2; 458#L27 assume !(main_~m~0 < 0 || main_~m~0 > 46340);main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 459#L31 assume !(main_~n~0 < 0 || main_~n~0 > 46340); 460#L34 call main_#t~ret4 := mult(main_~m~0, main_~n~0);< 467#multENTRY ~n := #in~n;~m := #in~m; 479#L16 assume !(~m < 0); 476#L19 assume 0 == ~m;#res := 0; 475#multFINAL assume true; 469#multEXIT >#45#return; 466#L34-1 main_~res1~0 := main_#t~ret4;havoc main_#t~ret4; 451#L35 call main_#t~ret5 := mult(main_~n~0, main_~m~0);< 452#multENTRY [2018-11-23 09:34:14,412 INFO L796 eck$LassoCheckResult]: Loop: 452#multENTRY ~n := #in~n;~m := #in~m; 474#L16 assume ~m < 0; 450#L17 call #t~ret0 := mult(~n, -~m);< 452#multENTRY [2018-11-23 09:34:14,412 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:14,412 INFO L82 PathProgramCache]: Analyzing trace with hash 922353405, now seen corresponding path program 1 times [2018-11-23 09:34:14,413 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:34:14,413 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:34:14,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:14,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:34:14,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:14,424 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:14,424 INFO L82 PathProgramCache]: Analyzing trace with hash 29924, now seen corresponding path program 3 times [2018-11-23 09:34:14,424 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:34:14,424 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:34:14,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:14,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:34:14,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:14,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:14,429 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:14,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1370471320, now seen corresponding path program 1 times [2018-11-23 09:34:14,429 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:34:14,429 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:34:14,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:14,430 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 09:34:14,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:14,452 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:34:14,452 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 09:34:14,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 09:34:14,473 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:34:14,473 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:34:14,473 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:34:14,473 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:34:14,473 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 09:34:14,473 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:14,473 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:34:14,473 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:34:14,473 INFO L131 ssoRankerPreferences]: Filename of dumped script: MultCommutative_true-unreach-call_true-no-overflow_true-termination.c_Iteration3_Loop [2018-11-23 09:34:14,474 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:34:14,474 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:34:14,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,523 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:34:14,523 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/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 [2018-11-23 09:34:14,527 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:14,527 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:14,529 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:14,530 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:14,547 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:14,547 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:14,549 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:14,549 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/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 [2018-11-23 09:34:14,566 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:14,566 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:14,568 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:14,568 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/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 [2018-11-23 09:34:14,592 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:14,593 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:14,594 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:14,595 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:14,611 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:14,611 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:14,628 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 09:34:14,628 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:14,652 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 09:34:14,653 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:34:14,654 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:34:14,654 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:34:14,654 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:34:14,654 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 09:34:14,654 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:14,654 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:34:14,654 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:34:14,654 INFO L131 ssoRankerPreferences]: Filename of dumped script: MultCommutative_true-unreach-call_true-no-overflow_true-termination.c_Iteration3_Loop [2018-11-23 09:34:14,654 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:34:14,654 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:34:14,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,681 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:34:14,682 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 09:34:14,682 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:14,682 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:14,682 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:14,683 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:14,683 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:14,683 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:14,683 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:14,683 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:14,685 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:14,685 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:14,685 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:14,685 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:14,685 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:14,686 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:14,686 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:14,686 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:14,686 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:14,687 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:14,687 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:14,687 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:14,687 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:14,688 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:14,688 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:14,688 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:14,688 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:14,688 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:14,689 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:14,689 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:14,689 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:14,689 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:14,689 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:14,689 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:14,689 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:14,690 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:14,690 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:14,690 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:14,690 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:14,691 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:14,691 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:14,691 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:14,691 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:14,691 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:14,691 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:14,691 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:14,698 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 09:34:14,699 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2018-11-23 09:34:14,699 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 09:34:14,700 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 09:34:14,700 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 09:34:14,700 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 09:34:14,700 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2018-11-23 09:34:14,700 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 09:34:14,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:14,725 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:34:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:14,744 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:34:14,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:34:14,761 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2018-11-23 09:34:14,761 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 47 transitions. cyclomatic complexity: 9 Second operand 5 states. [2018-11-23 09:34:14,803 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 47 transitions. cyclomatic complexity: 9. Second operand 5 states. Result 81 states and 90 transitions. Complement of second has 14 states. [2018-11-23 09:34:14,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-23 09:34:14,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 09:34:14,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2018-11-23 09:34:14,804 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 11 letters. Loop has 3 letters. [2018-11-23 09:34:14,804 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:14,804 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 14 letters. Loop has 3 letters. [2018-11-23 09:34:14,804 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:14,805 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 11 letters. Loop has 6 letters. [2018-11-23 09:34:14,805 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:14,805 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 90 transitions. [2018-11-23 09:34:14,806 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-23 09:34:14,807 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 62 states and 70 transitions. [2018-11-23 09:34:14,807 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 48 [2018-11-23 09:34:14,807 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2018-11-23 09:34:14,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 70 transitions. [2018-11-23 09:34:14,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 09:34:14,807 INFO L705 BuchiCegarLoop]: Abstraction has 62 states and 70 transitions. [2018-11-23 09:34:14,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 70 transitions. [2018-11-23 09:34:14,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 35. [2018-11-23 09:34:14,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-23 09:34:14,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2018-11-23 09:34:14,810 INFO L728 BuchiCegarLoop]: Abstraction has 35 states and 41 transitions. [2018-11-23 09:34:14,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 09:34:14,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 09:34:14,810 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand 5 states. [2018-11-23 09:34:14,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 09:34:14,824 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2018-11-23 09:34:14,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 09:34:14,824 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 40 transitions. [2018-11-23 09:34:14,825 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-23 09:34:14,826 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 35 states and 39 transitions. [2018-11-23 09:34:14,826 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2018-11-23 09:34:14,826 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2018-11-23 09:34:14,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 39 transitions. [2018-11-23 09:34:14,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 09:34:14,827 INFO L705 BuchiCegarLoop]: Abstraction has 35 states and 39 transitions. [2018-11-23 09:34:14,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 39 transitions. [2018-11-23 09:34:14,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2018-11-23 09:34:14,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-23 09:34:14,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2018-11-23 09:34:14,831 INFO L728 BuchiCegarLoop]: Abstraction has 31 states and 35 transitions. [2018-11-23 09:34:14,831 INFO L608 BuchiCegarLoop]: Abstraction has 31 states and 35 transitions. [2018-11-23 09:34:14,831 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-23 09:34:14,831 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 35 transitions. [2018-11-23 09:34:14,832 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-23 09:34:14,832 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 09:34:14,832 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 09:34:14,833 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:34:14,833 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-23 09:34:14,833 INFO L794 eck$LassoCheckResult]: Stem: 736#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_~m~0, main_~n~0, main_~res1~0, main_~res2~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2; 733#L27 assume !(main_~m~0 < 0 || main_~m~0 > 46340);main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 734#L31 assume !(main_~n~0 < 0 || main_~n~0 > 46340); 735#L34 call main_#t~ret4 := mult(main_~m~0, main_~n~0);< 742#multENTRY ~n := #in~n;~m := #in~m; 749#L16 assume !(~m < 0); 747#L19 assume 0 == ~m;#res := 0; 746#multFINAL assume true; 745#multEXIT >#45#return; 741#L34-1 main_~res1~0 := main_#t~ret4;havoc main_#t~ret4; 729#L35 call main_#t~ret5 := mult(main_~n~0, main_~m~0);< 728#multENTRY [2018-11-23 09:34:14,833 INFO L796 eck$LassoCheckResult]: Loop: 728#multENTRY ~n := #in~n;~m := #in~m; 730#L16 assume !(~m < 0); 732#L19 assume !(0 == ~m); 731#L22 call #t~ret1 := mult(~n, ~m - 1);< 728#multENTRY [2018-11-23 09:34:14,833 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:14,833 INFO L82 PathProgramCache]: Analyzing trace with hash 922353405, now seen corresponding path program 2 times [2018-11-23 09:34:14,833 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:34:14,833 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:34:14,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:14,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:34:14,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:14,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:14,842 INFO L82 PathProgramCache]: Analyzing trace with hash 929639, now seen corresponding path program 1 times [2018-11-23 09:34:14,842 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:34:14,842 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:34:14,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:14,842 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 09:34:14,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:14,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:14,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:14,845 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:14,845 INFO L82 PathProgramCache]: Analyzing trace with hash 465064035, now seen corresponding path program 1 times [2018-11-23 09:34:14,846 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:34:14,846 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:34:14,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:14,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:34:14,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:14,880 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:34:14,880 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:34:14,880 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:34:14,880 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:34:14,880 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 09:34:14,880 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:14,880 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:34:14,881 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:34:14,881 INFO L131 ssoRankerPreferences]: Filename of dumped script: MultCommutative_true-unreach-call_true-no-overflow_true-termination.c_Iteration4_Loop [2018-11-23 09:34:14,881 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:34:14,881 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:34:14,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:14,916 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:34:14,916 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:14,920 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:14,920 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:14,923 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:14,923 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:14,938 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:14,938 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:14,939 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:14,940 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:14,955 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:14,955 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:14,957 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:14,957 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/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 [2018-11-23 09:34:14,973 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:14,973 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/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 [2018-11-23 09:34:14,991 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 09:34:14,991 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:15,007 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 09:34:15,008 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:34:15,008 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:34:15,008 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:34:15,008 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:34:15,008 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 09:34:15,008 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:15,008 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:34:15,008 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:34:15,008 INFO L131 ssoRankerPreferences]: Filename of dumped script: MultCommutative_true-unreach-call_true-no-overflow_true-termination.c_Iteration4_Loop [2018-11-23 09:34:15,008 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:34:15,008 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:34:15,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:15,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:15,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:15,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:15,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:15,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:15,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:15,052 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:34:15,053 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 09:34:15,053 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:15,053 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:15,053 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:15,054 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:15,054 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:15,054 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:15,054 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:15,054 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:15,055 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:15,055 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:15,055 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:15,055 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:15,055 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:15,055 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:15,055 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:15,055 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:15,055 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:15,056 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:15,056 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:15,056 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:15,056 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:15,056 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:15,056 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:15,056 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:15,057 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:15,057 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:15,058 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 09:34:15,060 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 09:34:15,060 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 09:34:15,060 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 09:34:15,061 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 09:34:15,061 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 09:34:15,061 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = 1*mult_#in~m Supporting invariants [] [2018-11-23 09:34:15,061 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 09:34:15,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:15,087 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:34:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:15,101 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:34:15,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:34:15,117 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2018-11-23 09:34:15,117 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 35 transitions. cyclomatic complexity: 6 Second operand 5 states. [2018-11-23 09:34:15,152 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 35 transitions. cyclomatic complexity: 6. Second operand 5 states. Result 41 states and 45 transitions. Complement of second has 13 states. [2018-11-23 09:34:15,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-23 09:34:15,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 09:34:15,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2018-11-23 09:34:15,152 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 4 letters. [2018-11-23 09:34:15,152 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:15,153 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 15 letters. Loop has 4 letters. [2018-11-23 09:34:15,153 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:15,153 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 8 letters. [2018-11-23 09:34:15,153 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:15,153 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 45 transitions. [2018-11-23 09:34:15,154 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-23 09:34:15,154 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 15 states and 15 transitions. [2018-11-23 09:34:15,154 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2018-11-23 09:34:15,155 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2018-11-23 09:34:15,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 15 transitions. [2018-11-23 09:34:15,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 09:34:15,155 INFO L705 BuchiCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-11-23 09:34:15,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 15 transitions. [2018-11-23 09:34:15,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 8. [2018-11-23 09:34:15,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-23 09:34:15,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-11-23 09:34:15,156 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-11-23 09:34:15,156 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-11-23 09:34:15,156 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-23 09:34:15,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 8 transitions. [2018-11-23 09:34:15,156 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-23 09:34:15,156 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 09:34:15,156 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 09:34:15,156 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-23 09:34:15,156 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-23 09:34:15,156 INFO L794 eck$LassoCheckResult]: Stem: 887#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_~m~0, main_~n~0, main_~res1~0, main_~res2~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2; 888#L27 assume !(main_~m~0 < 0 || main_~m~0 > 46340);main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 881#L31 assume !(main_~n~0 < 0 || main_~n~0 > 46340); 882#L34 call main_#t~ret4 := mult(main_~m~0, main_~n~0);< 883#multENTRY [2018-11-23 09:34:15,157 INFO L796 eck$LassoCheckResult]: Loop: 883#multENTRY ~n := #in~n;~m := #in~m; 885#L16 assume !(~m < 0); 886#L19 assume !(0 == ~m); 884#L22 call #t~ret1 := mult(~n, ~m - 1);< 883#multENTRY [2018-11-23 09:34:15,157 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:15,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1390425, now seen corresponding path program 2 times [2018-11-23 09:34:15,157 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:34:15,157 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:34:15,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:15,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:34:15,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:15,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:15,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:15,161 INFO L82 PathProgramCache]: Analyzing trace with hash 929639, now seen corresponding path program 2 times [2018-11-23 09:34:15,161 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:34:15,161 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:34:15,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:15,162 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 09:34:15,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:15,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:15,165 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:15,165 INFO L82 PathProgramCache]: Analyzing trace with hash -108528961, now seen corresponding path program 2 times [2018-11-23 09:34:15,165 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:34:15,165 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:34:15,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:15,166 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 09:34:15,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:34:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:34:15,192 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:34:15,192 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:34:15,192 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:34:15,192 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:34:15,192 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 09:34:15,192 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:15,192 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:34:15,192 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:34:15,192 INFO L131 ssoRankerPreferences]: Filename of dumped script: MultCommutative_true-unreach-call_true-no-overflow_true-termination.c_Iteration5_Loop [2018-11-23 09:34:15,192 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:34:15,192 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:34:15,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:15,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:15,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:15,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:15,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:15,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:15,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:15,228 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:34:15,228 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/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 [2018-11-23 09:34:15,230 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:15,230 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:15,232 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:15,232 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/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 [2018-11-23 09:34:15,249 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:15,249 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:15,251 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:15,251 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/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 [2018-11-23 09:34:15,269 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:15,269 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:15,271 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:15,271 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/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 [2018-11-23 09:34:15,288 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:15,289 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:15,291 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:15,291 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/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 [2018-11-23 09:34:15,309 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:15,309 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:15,311 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:34:15,311 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/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 [2018-11-23 09:34:15,329 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:34:15,329 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce5b44d9-2392-4426-b755-55d3bd9859c2/bin-2019/uautomizer/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 [2018-11-23 09:34:15,348 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 09:34:15,348 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:34:15,367 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 09:34:15,368 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:34:15,368 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:34:15,368 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:34:15,369 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:34:15,369 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 09:34:15,369 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:34:15,369 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:34:15,369 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:34:15,369 INFO L131 ssoRankerPreferences]: Filename of dumped script: MultCommutative_true-unreach-call_true-no-overflow_true-termination.c_Iteration5_Loop [2018-11-23 09:34:15,369 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:34:15,369 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:34:15,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:15,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:15,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:15,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:15,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:15,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:15,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:34:15,426 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:34:15,426 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 09:34:15,426 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:15,427 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:15,427 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:15,427 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:15,427 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:15,427 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:15,427 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:15,427 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:15,428 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:15,428 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:15,429 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:15,429 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:15,429 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:15,429 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:15,429 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:15,429 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:15,429 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:15,430 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:15,430 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:15,431 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:15,431 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:15,431 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:15,431 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:15,431 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:15,431 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:15,431 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:15,432 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:15,432 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:15,433 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:15,433 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:15,433 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:15,433 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:15,433 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:15,434 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:15,434 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:15,434 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:15,434 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:15,435 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:15,435 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:15,435 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:15,435 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:15,435 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:15,436 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:15,436 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:15,436 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:34:15,437 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 09:34:15,437 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:34:15,437 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:34:15,437 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:34:15,437 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:34:15,437 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:34:15,438 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:34:15,438 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:34:15,440 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 09:34:15,441 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 09:34:15,441 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 09:34:15,441 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 09:34:15,442 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 09:34:15,442 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 09:34:15,442 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = 1*mult_#in~m Supporting invariants [] [2018-11-23 09:34:15,442 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 09:34:15,451 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:34:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:15,457 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:34:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:34:15,462 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:34:15,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:34:15,473 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-23 09:34:15,473 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 8 transitions. cyclomatic complexity: 1 Second operand 4 states. [2018-11-23 09:34:15,500 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 8 transitions. cyclomatic complexity: 1. Second operand 4 states. Result 18 states and 18 transitions. Complement of second has 11 states. [2018-11-23 09:34:15,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-23 09:34:15,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 09:34:15,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-11-23 09:34:15,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-23 09:34:15,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:15,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2018-11-23 09:34:15,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:15,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 8 letters. [2018-11-23 09:34:15,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:34:15,501 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 18 transitions. [2018-11-23 09:34:15,502 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 09:34:15,502 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2018-11-23 09:34:15,502 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 09:34:15,502 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 09:34:15,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 09:34:15,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 09:34:15,502 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 09:34:15,502 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 09:34:15,502 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 09:34:15,502 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-23 09:34:15,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 09:34:15,502 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 09:34:15,502 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 09:34:15,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 09:34:15 BoogieIcfgContainer [2018-11-23 09:34:15,507 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 09:34:15,507 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 09:34:15,507 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 09:34:15,507 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 09:34:15,507 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:34:12" (3/4) ... [2018-11-23 09:34:15,510 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 09:34:15,510 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 09:34:15,511 INFO L168 Benchmark]: Toolchain (without parser) took 3184.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 959.2 MB in the beginning and 893.5 MB in the end (delta: 65.7 MB). Peak memory consumption was 202.0 MB. Max. memory is 11.5 GB. [2018-11-23 09:34:15,512 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 09:34:15,512 INFO L168 Benchmark]: CACSL2BoogieTranslator took 184.53 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 09:34:15,512 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.87 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 09:34:15,513 INFO L168 Benchmark]: Boogie Preprocessor took 10.34 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 09:34:15,513 INFO L168 Benchmark]: RCFGBuilder took 182.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-23 09:34:15,513 INFO L168 Benchmark]: BuchiAutomizer took 2777.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 893.5 MB in the end (delta: 228.4 MB). Peak memory consumption was 228.4 MB. Max. memory is 11.5 GB. [2018-11-23 09:34:15,514 INFO L168 Benchmark]: Witness Printer took 3.08 ms. Allocated memory is still 1.2 GB. Free memory is still 893.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 09:34:15,516 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 184.53 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 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 22.87 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.34 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 182.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2777.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 893.5 MB in the end (delta: 228.4 MB). Peak memory consumption was 228.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.08 ms. Allocated memory is still 1.2 GB. Free memory is still 893.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 8 terminating modules (3 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * \old(m) and consists of 4 locations. One deterministic module has affine ranking function -1 * \old(m) and consists of 5 locations. One deterministic module has affine ranking function -1 * \old(m) and consists of 5 locations. One deterministic module has affine ranking function \old(m) and consists of 5 locations. One deterministic module has affine ranking function \old(m) and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 53 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 41 states and ocurred in iteration 2. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 120 SDtfs, 138 SDslu, 102 SDs, 0 SdLazy, 159 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT3 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp79 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf94 smp87 dnf100 smp100 tf112 neg97 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 5ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 24 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...