./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f560e32afd5a40adf4a98abbf810cb377947c4f4 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 14:36:41,614 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:36:41,615 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:36:41,622 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:36:41,622 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:36:41,622 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:36:41,623 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:36:41,624 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:36:41,625 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:36:41,626 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:36:41,627 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:36:41,627 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:36:41,627 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:36:41,629 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:36:41,629 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:36:41,630 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:36:41,631 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:36:41,632 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:36:41,633 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:36:41,635 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:36:41,635 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:36:41,637 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:36:41,638 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:36:41,638 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:36:41,639 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:36:41,639 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:36:41,640 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:36:41,640 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:36:41,641 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:36:41,642 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:36:41,642 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:36:41,642 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:36:41,643 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:36:41,643 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:36:41,643 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:36:41,644 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:36:41,644 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-18 14:36:41,653 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:36:41,654 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:36:41,655 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:36:41,655 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:36:41,655 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:36:41,656 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 14:36:41,656 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 14:36:41,656 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 14:36:41,656 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 14:36:41,656 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 14:36:41,656 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 14:36:41,656 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:36:41,657 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 14:36:41,657 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:36:41,657 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:36:41,657 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 14:36:41,657 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 14:36:41,657 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 14:36:41,657 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:36:41,657 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 14:36:41,657 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:36:41,658 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 14:36:41,658 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:36:41,658 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:36:41,658 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 14:36:41,658 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:36:41,658 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 14:36:41,658 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 14:36:41,659 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 14:36:41,659 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_23418bcf-833b-4783-96f9-243305a330a4/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f560e32afd5a40adf4a98abbf810cb377947c4f4 [2018-11-18 14:36:41,683 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:36:41,691 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:36:41,693 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:36:41,693 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:36:41,694 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:36:41,694 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c [2018-11-18 14:36:41,728 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/bin-2019/uautomizer/data/c7d9bc168/d34264a2bb4d4a00a66cfb50a5c37869/FLAG20a244f29 [2018-11-18 14:36:42,125 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:36:42,126 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c [2018-11-18 14:36:42,130 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/bin-2019/uautomizer/data/c7d9bc168/d34264a2bb4d4a00a66cfb50a5c37869/FLAG20a244f29 [2018-11-18 14:36:42,139 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/bin-2019/uautomizer/data/c7d9bc168/d34264a2bb4d4a00a66cfb50a5c37869 [2018-11-18 14:36:42,141 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:36:42,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:36:42,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:36:42,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:36:42,146 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:36:42,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:36:42" (1/1) ... [2018-11-18 14:36:42,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69e0686 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:42, skipping insertion in model container [2018-11-18 14:36:42,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:36:42" (1/1) ... [2018-11-18 14:36:42,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:36:42,165 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:36:42,257 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:36:42,259 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:36:42,268 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:36:42,277 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:36:42,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:42 WrapperNode [2018-11-18 14:36:42,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:36:42,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:36:42,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:36:42,278 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:36:42,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:42" (1/1) ... [2018-11-18 14:36:42,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:42" (1/1) ... [2018-11-18 14:36:42,296 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:36:42,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:36:42,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:36:42,296 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:36:42,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:42" (1/1) ... [2018-11-18 14:36:42,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:42" (1/1) ... [2018-11-18 14:36:42,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:42" (1/1) ... [2018-11-18 14:36:42,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:42" (1/1) ... [2018-11-18 14:36:42,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:42" (1/1) ... [2018-11-18 14:36:42,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:42" (1/1) ... [2018-11-18 14:36:42,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:42" (1/1) ... [2018-11-18 14:36:42,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:36:42,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:36:42,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:36:42,307 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:36:42,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/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 [2018-11-18 14:36:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:36:42,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:36:42,470 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:36:42,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:36:42 BoogieIcfgContainer [2018-11-18 14:36:42,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:36:42,471 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 14:36:42,471 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 14:36:42,473 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 14:36:42,474 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:36:42,474 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 02:36:42" (1/3) ... [2018-11-18 14:36:42,475 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c57891c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 02:36:42, skipping insertion in model container [2018-11-18 14:36:42,475 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:36:42,475 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:36:42" (2/3) ... [2018-11-18 14:36:42,475 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c57891c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 02:36:42, skipping insertion in model container [2018-11-18 14:36:42,475 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:36:42,475 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:36:42" (3/3) ... [2018-11-18 14:36:42,477 INFO L375 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c [2018-11-18 14:36:42,515 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:36:42,516 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 14:36:42,516 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 14:36:42,516 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 14:36:42,516 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:36:42,516 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:36:42,516 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 14:36:42,516 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:36:42,516 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 14:36:42,525 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-11-18 14:36:42,538 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 14:36:42,539 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:36:42,539 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:36:42,544 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 14:36:42,545 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 14:36:42,545 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 14:36:42,545 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-11-18 14:36:42,546 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 14:36:42,546 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:36:42,546 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:36:42,546 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 14:36:42,546 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 14:36:42,553 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 7#L17true assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := main_~n~0; 9#L20-2true [2018-11-18 14:36:42,553 INFO L796 eck$LassoCheckResult]: Loop: 9#L20-2true assume true; 10#L19-1true assume !!(main_~i~0 > 0); 12#L20true assume main_~i~0 < main_~m~0;main_~i~0 := main_~i~0 - 1; 9#L20-2true [2018-11-18 14:36:42,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:42,557 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2018-11-18 14:36:42,558 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:36:42,559 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:36:42,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:42,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:36:42,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:36:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:36:42,624 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:42,625 INFO L82 PathProgramCache]: Analyzing trace with hash 38923, now seen corresponding path program 1 times [2018-11-18 14:36:42,625 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:36:42,625 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:36:42,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:42,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:36:42,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:36:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:36:42,631 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:42,631 INFO L82 PathProgramCache]: Analyzing trace with hash 889508810, now seen corresponding path program 1 times [2018-11-18 14:36:42,631 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:36:42,631 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:36:42,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:42,632 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:36:42,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:36:42,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:36:42,680 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:36:42,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:36:42,711 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 14:36:42,711 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 14:36:42,711 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 14:36:42,712 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 14:36:42,712 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 14:36:42,712 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:36:42,712 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 14:36:42,712 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 14:36:42,712 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-18 14:36:42,712 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 14:36:42,712 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 14:36:42,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:42,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:42,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:42,797 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 14:36:42,797 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/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 [2018-11-18 14:36:42,800 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 14:36:42,800 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 14:36:42,819 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 14:36:42,819 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/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 [2018-11-18 14:36:42,822 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 14:36:42,822 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 14:36:42,837 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 14:36:42,837 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/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 [2018-11-18 14:36:42,840 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 14:36:42,840 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/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 [2018-11-18 14:36:42,858 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 14:36:42,858 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 14:36:42,877 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 14:36:42,878 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 14:36:42,878 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 14:36:42,879 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 14:36:42,879 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 14:36:42,879 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 14:36:42,879 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:36:42,879 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 14:36:42,879 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 14:36:42,879 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-18 14:36:42,879 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 14:36:42,879 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 14:36:42,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:42,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:42,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:42,976 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 14:36:42,979 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 14:36:42,980 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 [2018-11-18 14:36:42,981 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:36:42,981 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:36:42,981 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:36:42,981 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:36:42,986 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 14:36:42,986 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 14:36:42,990 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 14:36:42,991 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 [2018-11-18 14:36:42,991 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:36:42,992 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:36:42,992 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:36:42,992 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:36:42,994 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 14:36:42,994 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 14:36:43,000 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 14:36:43,000 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 [2018-11-18 14:36:43,001 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:36:43,001 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 14:36:43,001 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:36:43,001 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:36:43,001 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:36:43,002 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 14:36:43,002 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 14:36:43,007 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 14:36:43,011 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 14:36:43,011 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 14:36:43,012 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 14:36:43,013 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 14:36:43,013 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 14:36:43,013 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-11-18 14:36:43,014 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 14:36:43,043 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:43,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:36:43,050 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:36:43,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:36:43,056 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:36:43,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:36:43,071 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 14:36:43,071 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 4 states. [2018-11-18 14:36:43,110 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 4 states. Result 32 states and 37 transitions. Complement of second has 8 states. [2018-11-18 14:36:43,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 14:36:43,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 14:36:43,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2018-11-18 14:36:43,113 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 3 letters. Loop has 3 letters. [2018-11-18 14:36:43,114 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:36:43,114 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-18 14:36:43,114 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:36:43,114 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 3 letters. Loop has 6 letters. [2018-11-18 14:36:43,114 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:36:43,115 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2018-11-18 14:36:43,117 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 14:36:43,119 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 12 states and 15 transitions. [2018-11-18 14:36:43,120 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-18 14:36:43,120 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-11-18 14:36:43,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2018-11-18 14:36:43,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 14:36:43,121 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-18 14:36:43,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2018-11-18 14:36:43,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-18 14:36:43,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-18 14:36:43,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2018-11-18 14:36:43,137 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-18 14:36:43,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:36:43,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:36:43,139 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. Second operand 3 states. [2018-11-18 14:36:43,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:36:43,149 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-11-18 14:36:43,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:36:43,150 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2018-11-18 14:36:43,151 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 14:36:43,151 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 9 states and 10 transitions. [2018-11-18 14:36:43,151 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-18 14:36:43,151 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-11-18 14:36:43,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2018-11-18 14:36:43,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:36:43,151 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-11-18 14:36:43,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2018-11-18 14:36:43,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-11-18 14:36:43,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-11-18 14:36:43,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2018-11-18 14:36:43,152 INFO L728 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-11-18 14:36:43,152 INFO L608 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-11-18 14:36:43,152 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 14:36:43,152 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2018-11-18 14:36:43,153 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 14:36:43,153 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:36:43,153 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:36:43,153 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-18 14:36:43,153 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 14:36:43,153 INFO L794 eck$LassoCheckResult]: Stem: 114#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 112#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 113#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := main_~n~0; 115#L20-2 assume true; 116#L19-1 assume !!(main_~i~0 > 0); 117#L20 assume !(main_~i~0 < main_~m~0);main_~i~0 := main_~i~0 - main_~m~0; 118#L20-2 [2018-11-18 14:36:43,153 INFO L796 eck$LassoCheckResult]: Loop: 118#L20-2 assume true; 120#L19-1 assume !!(main_~i~0 > 0); 119#L20 assume main_~i~0 < main_~m~0;main_~i~0 := main_~i~0 - 1; 118#L20-2 [2018-11-18 14:36:43,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:43,154 INFO L82 PathProgramCache]: Analyzing trace with hash 889508812, now seen corresponding path program 1 times [2018-11-18 14:36:43,154 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:36:43,154 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:36:43,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:43,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:36:43,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:43,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:36:43,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:36:43,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:43,161 INFO L82 PathProgramCache]: Analyzing trace with hash 38923, now seen corresponding path program 2 times [2018-11-18 14:36:43,161 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:36:43,162 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:36:43,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:43,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:36:43,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:43,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:36:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:36:43,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:43,166 INFO L82 PathProgramCache]: Analyzing trace with hash -591188896, now seen corresponding path program 1 times [2018-11-18 14:36:43,167 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:36:43,167 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:36:43,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:43,168 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:36:43,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:36:43,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:36:43,189 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 14:36:43,189 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 14:36:43,189 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 14:36:43,189 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 14:36:43,190 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 14:36:43,190 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:36:43,190 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 14:36:43,190 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 14:36:43,190 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 14:36:43,190 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 14:36:43,190 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 14:36:43,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:43,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:43,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:43,238 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 14:36:43,238 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/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 [2018-11-18 14:36:43,239 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 14:36:43,240 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 14:36:43,255 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 14:36:43,255 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/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 [2018-11-18 14:36:43,259 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 14:36:43,259 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 14:36:43,274 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 14:36:43,274 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/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 [2018-11-18 14:36:43,277 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 14:36:43,277 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/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 [2018-11-18 14:36:43,294 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 14:36:43,294 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 14:36:43,312 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 14:36:43,313 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 14:36:43,313 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 14:36:43,313 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 14:36:43,313 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 14:36:43,313 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 14:36:43,313 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:36:43,313 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 14:36:43,313 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 14:36:43,313 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 14:36:43,313 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 14:36:43,313 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 14:36:43,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:43,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:43,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:43,347 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 14:36:43,347 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 14:36:43,347 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 [2018-11-18 14:36:43,348 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:36:43,348 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:36:43,348 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:36:43,349 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:36:43,350 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 14:36:43,350 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 14:36:43,354 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 14:36:43,354 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 [2018-11-18 14:36:43,354 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:36:43,355 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 14:36:43,355 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:36:43,355 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:36:43,355 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:36:43,356 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 14:36:43,356 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 14:36:43,359 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 14:36:43,362 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 14:36:43,363 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 14:36:43,363 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 14:36:43,363 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 14:36:43,363 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 14:36:43,363 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-11-18 14:36:43,364 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 14:36:43,376 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:36:43,380 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:36:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:36:43,383 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:36:43,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:36:43,390 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 14:36:43,390 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand 4 states. [2018-11-18 14:36:43,401 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 15 states and 18 transitions. Complement of second has 7 states. [2018-11-18 14:36:43,402 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 [2018-11-18 14:36:43,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 14:36:43,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2018-11-18 14:36:43,402 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-18 14:36:43,402 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:36:43,404 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-18 14:36:43,404 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:36:43,404 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-18 14:36:43,404 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:36:43,404 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2018-11-18 14:36:43,405 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 14:36:43,406 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 18 transitions. [2018-11-18 14:36:43,406 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2018-11-18 14:36:43,406 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-11-18 14:36:43,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2018-11-18 14:36:43,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 14:36:43,406 INFO L705 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2018-11-18 14:36:43,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2018-11-18 14:36:43,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-18 14:36:43,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-18 14:36:43,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2018-11-18 14:36:43,408 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2018-11-18 14:36:43,408 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2018-11-18 14:36:43,408 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 14:36:43,408 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2018-11-18 14:36:43,409 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 14:36:43,409 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:36:43,409 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:36:43,409 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1] [2018-11-18 14:36:43,409 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 14:36:43,410 INFO L794 eck$LassoCheckResult]: Stem: 189#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 187#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 188#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := main_~n~0; 190#L20-2 assume true; 201#L19-1 assume !!(main_~i~0 > 0); 200#L20 assume !(main_~i~0 < main_~m~0);main_~i~0 := main_~i~0 - main_~m~0; 199#L20-2 assume true; 195#L19-1 assume !!(main_~i~0 > 0); 198#L20 assume !(main_~i~0 < main_~m~0);main_~i~0 := main_~i~0 - main_~m~0; 191#L20-2 [2018-11-18 14:36:43,410 INFO L796 eck$LassoCheckResult]: Loop: 191#L20-2 assume true; 192#L19-1 assume !!(main_~i~0 > 0); 196#L20 assume main_~i~0 < main_~m~0;main_~i~0 := main_~i~0 - 1; 191#L20-2 [2018-11-18 14:36:43,410 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:43,410 INFO L82 PathProgramCache]: Analyzing trace with hash -591188894, now seen corresponding path program 2 times [2018-11-18 14:36:43,410 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:36:43,410 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:36:43,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:43,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:36:43,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:43,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:36:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:36:43,419 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:43,419 INFO L82 PathProgramCache]: Analyzing trace with hash 38923, now seen corresponding path program 3 times [2018-11-18 14:36:43,419 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:36:43,419 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:36:43,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:43,420 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:36:43,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:36:43,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:36:43,424 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:43,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1552548874, now seen corresponding path program 2 times [2018-11-18 14:36:43,425 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:36:43,425 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:36:43,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:43,426 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:36:43,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:43,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:36:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:36:43,454 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 14:36:43,454 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 14:36:43,455 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 14:36:43,455 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 14:36:43,455 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 14:36:43,455 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:36:43,455 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 14:36:43,455 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 14:36:43,455 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-18 14:36:43,455 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 14:36:43,455 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 14:36:43,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:43,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:43,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:43,508 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 14:36:43,508 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/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 [2018-11-18 14:36:43,510 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 14:36:43,510 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 14:36:43,536 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 14:36:43,536 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/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 [2018-11-18 14:36:43,544 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 14:36:43,545 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/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 [2018-11-18 14:36:43,573 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 14:36:43,573 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 14:36:43,592 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 14:36:43,593 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 14:36:43,593 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 14:36:43,593 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 14:36:43,593 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 14:36:43,593 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 14:36:43,593 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:36:43,593 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 14:36:43,593 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 14:36:43,593 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-18 14:36:43,594 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 14:36:43,594 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 14:36:43,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:43,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:43,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:43,635 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 14:36:43,635 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 14:36:43,636 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 [2018-11-18 14:36:43,636 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:36:43,637 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:36:43,637 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:36:43,637 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:36:43,638 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 14:36:43,638 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 14:36:43,649 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 14:36:43,649 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 [2018-11-18 14:36:43,649 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:36:43,650 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 14:36:43,650 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:36:43,650 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:36:43,650 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:36:43,650 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 14:36:43,651 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 14:36:43,653 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 14:36:43,654 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 14:36:43,654 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 14:36:43,655 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 14:36:43,655 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 14:36:43,655 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 14:36:43,655 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-11-18 14:36:43,655 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 14:36:43,674 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:43,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:36:43,678 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:36:43,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:36:43,681 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:36:43,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:36:43,687 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 14:36:43,688 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-11-18 14:36:43,697 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 19 states and 24 transitions. Complement of second has 7 states. [2018-11-18 14:36:43,697 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 [2018-11-18 14:36:43,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 14:36:43,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2018-11-18 14:36:43,698 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-18 14:36:43,698 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:36:43,698 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 14:36:43,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:36:43,711 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:36:43,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:36:43,714 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:36:43,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:36:43,725 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 14:36:43,725 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-11-18 14:36:43,734 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 19 states and 24 transitions. Complement of second has 7 states. [2018-11-18 14:36:43,734 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 [2018-11-18 14:36:43,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 14:36:43,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2018-11-18 14:36:43,734 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-18 14:36:43,734 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:36:43,734 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 14:36:43,749 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:36:43,753 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:36:43,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:36:43,756 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:36:43,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:36:43,762 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 14:36:43,762 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-11-18 14:36:43,768 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 22 states and 28 transitions. Complement of second has 6 states. [2018-11-18 14:36:43,768 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 [2018-11-18 14:36:43,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 14:36:43,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2018-11-18 14:36:43,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-18 14:36:43,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:36:43,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-18 14:36:43,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:36:43,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 9 letters. Loop has 6 letters. [2018-11-18 14:36:43,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:36:43,770 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 28 transitions. [2018-11-18 14:36:43,771 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-18 14:36:43,771 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 22 transitions. [2018-11-18 14:36:43,771 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-18 14:36:43,771 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-11-18 14:36:43,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 22 transitions. [2018-11-18 14:36:43,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 14:36:43,772 INFO L705 BuchiCegarLoop]: Abstraction has 18 states and 22 transitions. [2018-11-18 14:36:43,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 22 transitions. [2018-11-18 14:36:43,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 10. [2018-11-18 14:36:43,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-11-18 14:36:43,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2018-11-18 14:36:43,772 INFO L728 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2018-11-18 14:36:43,773 INFO L608 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2018-11-18 14:36:43,773 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 14:36:43,773 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2018-11-18 14:36:43,773 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-18 14:36:43,773 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:36:43,773 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:36:43,773 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-18 14:36:43,773 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 14:36:43,773 INFO L794 eck$LassoCheckResult]: Stem: 413#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 411#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 412#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := main_~n~0; 414#L20-2 assume true; 415#L19-1 [2018-11-18 14:36:43,773 INFO L796 eck$LassoCheckResult]: Loop: 415#L19-1 assume !!(main_~i~0 > 0); 418#L20 assume !(main_~i~0 < main_~m~0);main_~i~0 := main_~i~0 - main_~m~0; 420#L20-2 assume true; 415#L19-1 [2018-11-18 14:36:43,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:43,774 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2018-11-18 14:36:43,774 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:36:43,774 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:36:43,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:43,775 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 14:36:43,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:43,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:36:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:36:43,778 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:43,778 INFO L82 PathProgramCache]: Analyzing trace with hash 44835, now seen corresponding path program 1 times [2018-11-18 14:36:43,778 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:36:43,778 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:36:43,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:43,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:36:43,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:43,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:36:43,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:36:43,782 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:43,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1804969405, now seen corresponding path program 3 times [2018-11-18 14:36:43,782 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:36:43,782 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:36:43,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:43,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:36:43,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:36:43,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:36:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:36:43,814 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 14:36:43,814 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 14:36:43,814 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 14:36:43,814 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 14:36:43,814 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 14:36:43,814 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:36:43,814 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 14:36:43,814 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 14:36:43,814 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c_Iteration4_Lasso [2018-11-18 14:36:43,814 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 14:36:43,814 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 14:36:43,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:43,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:43,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:43,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:43,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:43,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:43,876 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 14:36:43,876 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/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 [2018-11-18 14:36:43,879 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 14:36:43,879 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 14:36:43,881 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 14:36:43,881 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/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 [2018-11-18 14:36:43,896 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 14:36:43,896 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 14:36:43,898 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 14:36:43,898 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/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 [2018-11-18 14:36:43,919 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 14:36:43,920 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 14:36:43,921 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 14:36:43,921 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/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 [2018-11-18 14:36:43,936 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 14:36:43,936 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 14:36:43,951 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 14:36:43,951 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/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 [2018-11-18 14:36:43,954 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 14:36:43,954 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23418bcf-833b-4783-96f9-243305a330a4/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 [2018-11-18 14:36:43,972 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 14:36:43,972 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 14:36:44,043 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 14:36:44,044 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 14:36:44,044 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 14:36:44,044 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 14:36:44,044 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 14:36:44,044 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 14:36:44,044 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:36:44,044 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 14:36:44,044 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 14:36:44,044 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c_Iteration4_Lasso [2018-11-18 14:36:44,044 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 14:36:44,044 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 14:36:44,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:44,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:44,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:44,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:44,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:44,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:36:44,088 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 14:36:44,088 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 14:36:44,089 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 [2018-11-18 14:36:44,089 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:36:44,089 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 14:36:44,089 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:36:44,089 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:36:44,089 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:36:44,091 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 14:36:44,091 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 14:36:44,091 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 14:36:44,092 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 [2018-11-18 14:36:44,092 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:36:44,092 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 14:36:44,092 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:36:44,092 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:36:44,092 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:36:44,093 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 14:36:44,093 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 14:36:44,093 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 14:36:44,093 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 [2018-11-18 14:36:44,093 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:36:44,094 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 14:36:44,094 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:36:44,094 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:36:44,094 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:36:44,094 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 14:36:44,094 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 14:36:44,095 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 14:36:44,095 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 [2018-11-18 14:36:44,095 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:36:44,096 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:36:44,096 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:36:44,096 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:36:44,097 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 14:36:44,097 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 14:36:44,099 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 14:36:44,100 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 [2018-11-18 14:36:44,100 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:36:44,100 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:36:44,101 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:36:44,101 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:36:44,102 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 14:36:44,102 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 14:36:44,117 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 14:36:44,129 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-11-18 14:36:44,129 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-18 14:36:44,130 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 14:36:44,131 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-18 14:36:44,131 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 14:36:44,132 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [1*ULTIMATE.start_main_~m~0 - 1 >= 0] [2018-11-18 14:36:44,140 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-18 14:36:44,177 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:36:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:36:44,183 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:36:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:36:44,202 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:36:44,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:36:44,228 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 [2018-11-18 14:36:44,228 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3 Second operand 5 states. [2018-11-18 14:36:44,253 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3. Second operand 5 states. Result 16 states and 20 transitions. Complement of second has 7 states. [2018-11-18 14:36:44,253 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 [2018-11-18 14:36:44,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 14:36:44,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9 transitions. [2018-11-18 14:36:44,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-18 14:36:44,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:36:44,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-18 14:36:44,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:36:44,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 4 letters. Loop has 6 letters. [2018-11-18 14:36:44,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:36:44,255 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 20 transitions. [2018-11-18 14:36:44,256 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 14:36:44,256 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2018-11-18 14:36:44,256 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 14:36:44,256 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 14:36:44,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 14:36:44,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:36:44,257 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:36:44,257 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:36:44,257 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:36:44,257 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 14:36:44,257 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 14:36:44,257 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 14:36:44,257 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 14:36:44,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 02:36:44 BoogieIcfgContainer [2018-11-18 14:36:44,262 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 14:36:44,262 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:36:44,262 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:36:44,262 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:36:44,263 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:36:42" (3/4) ... [2018-11-18 14:36:44,265 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 14:36:44,265 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:36:44,269 INFO L168 Benchmark]: Toolchain (without parser) took 2126.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 959.1 MB in the beginning and 861.6 MB in the end (delta: 97.5 MB). Peak memory consumption was 263.2 MB. Max. memory is 11.5 GB. [2018-11-18 14:36:44,270 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:36:44,270 INFO L168 Benchmark]: CACSL2BoogieTranslator took 134.14 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:36:44,271 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.39 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:36:44,271 INFO L168 Benchmark]: Boogie Preprocessor took 10.60 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:36:44,271 INFO L168 Benchmark]: RCFGBuilder took 163.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -204.3 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 14:36:44,272 INFO L168 Benchmark]: BuchiAutomizer took 1790.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 861.6 MB in the end (delta: 288.4 MB). Peak memory consumption was 288.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:36:44,272 INFO L168 Benchmark]: Witness Printer took 5.77 ms. Allocated memory is still 1.2 GB. Free memory is still 861.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:36:44,275 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 134.14 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 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 18.39 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.60 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 163.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -204.3 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1790.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 861.6 MB in the end (delta: 288.4 MB). Peak memory consumption was 288.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.77 ms. Allocated memory is still 1.2 GB. Free memory is still 861.6 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 5 terminating modules (1 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function i and consists of 5 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function i and consists of 5 locations. One nondeterministic module has affine ranking function i and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 15 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 50 SDtfs, 47 SDslu, 20 SDs, 0 SdLazy, 42 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax181 hnf97 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq145 hnf94 smp100 dnf100 smp100 tf108 neg100 sie119 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 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...