./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig1_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_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/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 c0bce2603970e0a002a5b33cfd00ef3446011286 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 16:30:58,446 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:30:58,448 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:30:58,455 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:30:58,455 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:30:58,456 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:30:58,457 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:30:58,458 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:30:58,459 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:30:58,459 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:30:58,460 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:30:58,460 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:30:58,461 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:30:58,461 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:30:58,462 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:30:58,463 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:30:58,463 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:30:58,464 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:30:58,465 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:30:58,466 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:30:58,467 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:30:58,468 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:30:58,469 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:30:58,469 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:30:58,469 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:30:58,470 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:30:58,470 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:30:58,471 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:30:58,471 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:30:58,472 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:30:58,472 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:30:58,473 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:30:58,473 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:30:58,473 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:30:58,474 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:30:58,474 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:30:58,474 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-18 16:30:58,484 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:30:58,484 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:30:58,485 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:30:58,485 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:30:58,485 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:30:58,485 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 16:30:58,485 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 16:30:58,485 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 16:30:58,486 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 16:30:58,486 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 16:30:58,486 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 16:30:58,486 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:30:58,486 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 16:30:58,486 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:30:58,486 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:30:58,487 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 16:30:58,487 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 16:30:58,487 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 16:30:58,487 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:30:58,487 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 16:30:58,487 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:30:58,487 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 16:30:58,487 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:30:58,488 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:30:58,488 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 16:30:58,488 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:30:58,488 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 16:30:58,488 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 16:30:58,489 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 16:30:58,489 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_6d440809-bdec-4085-9aba-25475ee9401d/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 -> c0bce2603970e0a002a5b33cfd00ef3446011286 [2018-11-18 16:30:58,510 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:30:58,520 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:30:58,522 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:30:58,523 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:30:58,524 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:30:58,524 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c [2018-11-18 16:30:58,556 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/data/1f0bf4411/26767f3592fb489ea732be97f56678f6/FLAGf03072d79 [2018-11-18 16:30:58,941 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:30:58,942 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c [2018-11-18 16:30:58,946 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/data/1f0bf4411/26767f3592fb489ea732be97f56678f6/FLAGf03072d79 [2018-11-18 16:30:58,956 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/data/1f0bf4411/26767f3592fb489ea732be97f56678f6 [2018-11-18 16:30:58,957 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:30:58,958 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:30:58,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:30:58,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:30:58,961 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:30:58,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:30:58" (1/1) ... [2018-11-18 16:30:58,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cfef79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:30:58, skipping insertion in model container [2018-11-18 16:30:58,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:30:58" (1/1) ... [2018-11-18 16:30:58,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:30:58,978 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:30:59,078 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:30:59,079 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:30:59,089 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:30:59,098 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:30:59,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:30:59 WrapperNode [2018-11-18 16:30:59,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:30:59,099 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:30:59,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:30:59,099 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:30:59,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:30:59" (1/1) ... [2018-11-18 16:30:59,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:30:59" (1/1) ... [2018-11-18 16:30:59,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:30:59,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:30:59,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:30:59,118 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:30:59,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:30:59" (1/1) ... [2018-11-18 16:30:59,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:30:59" (1/1) ... [2018-11-18 16:30:59,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:30:59" (1/1) ... [2018-11-18 16:30:59,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:30:59" (1/1) ... [2018-11-18 16:30:59,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:30:59" (1/1) ... [2018-11-18 16:30:59,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:30:59" (1/1) ... [2018-11-18 16:30:59,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:30:59" (1/1) ... [2018-11-18 16:30:59,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:30:59,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:30:59,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:30:59,131 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:30:59,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:30:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/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 16:30:59,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:30:59,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:30:59,325 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:30:59,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:30:59 BoogieIcfgContainer [2018-11-18 16:30:59,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:30:59,326 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 16:30:59,326 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 16:30:59,328 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 16:30:59,329 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:30:59,329 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 04:30:58" (1/3) ... [2018-11-18 16:30:59,330 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@358546aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:30:59, skipping insertion in model container [2018-11-18 16:30:59,330 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:30:59,330 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:30:59" (2/3) ... [2018-11-18 16:30:59,330 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@358546aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:30:59, skipping insertion in model container [2018-11-18 16:30:59,330 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:30:59,330 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:30:59" (3/3) ... [2018-11-18 16:30:59,332 INFO L375 chiAutomizerObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c [2018-11-18 16:30:59,380 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:30:59,381 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 16:30:59,381 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 16:30:59,381 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 16:30:59,381 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:30:59,381 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:30:59,381 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 16:30:59,381 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:30:59,381 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 16:30:59,393 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2018-11-18 16:30:59,410 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2018-11-18 16:30:59,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:30:59,410 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:30:59,414 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-18 16:30:59,414 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 16:30:59,414 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 16:30:59,414 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2018-11-18 16:30:59,416 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2018-11-18 16:30:59,416 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:30:59,416 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:30:59,416 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-18 16:30:59,416 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 16:30:59,421 INFO L794 eck$LassoCheckResult]: Stem: 17#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 15#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5; 13#L41true assume 0 != main_#t~nondet5;havoc main_#t~nondet5;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 7#L18true assume !(f_~k~0 > 1073741823); 16#L23-2true [2018-11-18 16:30:59,421 INFO L796 eck$LassoCheckResult]: Loop: 16#L23-2true assume true; 19#L23true assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 16#L23-2true [2018-11-18 16:30:59,424 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:30:59,425 INFO L82 PathProgramCache]: Analyzing trace with hash 925608, now seen corresponding path program 1 times [2018-11-18 16:30:59,426 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:30:59,426 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:30:59,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:30:59,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:30:59,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:30:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:30:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:30:59,491 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:30:59,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1415, now seen corresponding path program 1 times [2018-11-18 16:30:59,491 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:30:59,491 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:30:59,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:30:59,492 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:30:59,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:30:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:30:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:30:59,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:30:59,495 INFO L82 PathProgramCache]: Analyzing trace with hash 889509742, now seen corresponding path program 1 times [2018-11-18 16:30:59,495 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:30:59,496 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:30:59,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:30:59,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:30:59,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:30:59,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:30:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:30:59,562 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:30:59,562 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:30:59,563 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:30:59,563 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:30:59,563 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 16:30:59,563 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:30:59,563 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:30:59,563 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:30:59,563 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration1_Lasso [2018-11-18 16:30:59,563 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:30:59,564 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:30:59,577 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 16:30:59,581 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 16:30:59,583 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 16:30:59,585 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 16:30:59,586 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 16:30:59,590 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 16:30:59,594 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 16:30:59,618 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 16:30:59,622 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 16:30:59,624 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 16:30:59,626 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 16:30:59,718 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:30:59,718 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/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 16:30:59,721 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:30:59,721 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:30:59,728 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:30:59,728 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/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 16:30:59,744 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:30:59,745 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:30:59,747 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:30:59,747 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/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 16:30:59,771 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:30:59,771 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:30:59,774 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:30:59,774 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_6d440809-bdec-4085-9aba-25475ee9401d/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 16:30:59,792 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:30:59,792 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:30:59,794 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:30:59,794 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/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 16:30:59,809 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:30:59,809 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:30:59,814 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:30:59,815 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/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 16:30:59,829 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:30:59,830 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:30:59,832 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:30:59,832 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/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 16:30:59,847 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:30:59,847 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/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 16:30:59,864 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 16:30:59,865 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:13,392 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-18 16:31:13,398 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:31:13,398 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:31:13,399 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:31:13,399 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:31:13,399 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 16:31:13,399 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:13,399 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:31:13,399 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:31:13,399 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration1_Lasso [2018-11-18 16:31:13,400 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:31:13,400 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:31:13,401 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 16:31:13,403 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 16:31:13,404 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 16:31:13,406 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 16:31:13,408 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 16:31:13,410 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 16:31:13,424 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 16:31:13,426 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 16:31:13,427 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 16:31:13,429 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 16:31:13,431 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 16:31:13,523 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:31:13,527 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 16:31:13,529 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 16:31:13,530 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:13,530 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:13,531 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:13,531 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:13,531 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:13,533 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:13,533 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:13,535 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:13,535 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 16:31:13,536 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:13,536 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:13,536 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:13,536 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:13,536 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:13,537 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:13,538 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:13,538 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:13,538 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 16:31:13,539 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:13,539 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:13,539 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:13,539 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:13,539 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:13,540 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:13,540 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:13,541 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:13,541 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 16:31:13,542 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:13,542 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:13,542 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:13,542 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:13,542 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:13,543 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:13,543 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:13,543 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:13,543 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 16:31:13,544 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:13,544 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:13,544 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:13,544 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:13,544 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:13,545 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:13,545 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:13,545 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:13,546 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 16:31:13,546 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:13,546 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:13,546 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:13,547 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:13,551 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:31:13,551 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:31:13,593 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 16:31:13,626 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2018-11-18 16:31:13,627 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-18 16:31:13,629 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 16:31:13,631 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-18 16:31:13,631 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 16:31:13,632 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~z~0, ULTIMATE.start_f_~k~0) = -1*ULTIMATE.start_f_~z~0 + 1*ULTIMATE.start_f_~k~0 Supporting invariants [1*ULTIMATE.start_f_~z~0 - 1 >= 0] [2018-11-18 16:31:13,635 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-18 16:31:13,673 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:13,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:13,683 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:13,693 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:13,694 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 16:31:13,708 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2018-11-18 16:31:13,709 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states. Second operand 4 states. [2018-11-18 16:31:13,783 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states.. Second operand 4 states. Result 67 states and 91 transitions. Complement of second has 7 states. [2018-11-18 16:31:13,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 16:31:13,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 16:31:13,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 64 transitions. [2018-11-18 16:31:13,787 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 64 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-18 16:31:13,787 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:13,788 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 64 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-18 16:31:13,788 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:13,788 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 64 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-18 16:31:13,788 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:13,789 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 91 transitions. [2018-11-18 16:31:13,792 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 16 [2018-11-18 16:31:13,795 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 27 states and 35 transitions. [2018-11-18 16:31:13,796 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2018-11-18 16:31:13,796 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2018-11-18 16:31:13,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2018-11-18 16:31:13,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 16:31:13,797 INFO L705 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2018-11-18 16:31:13,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2018-11-18 16:31:13,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2018-11-18 16:31:13,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-18 16:31:13,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2018-11-18 16:31:13,822 INFO L728 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2018-11-18 16:31:13,822 INFO L608 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2018-11-18 16:31:13,822 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 16:31:13,822 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 25 transitions. [2018-11-18 16:31:13,823 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2018-11-18 16:31:13,823 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:31:13,823 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:31:13,823 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-18 16:31:13,823 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 16:31:13,824 INFO L794 eck$LassoCheckResult]: Stem: 159#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 155#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5; 154#L41 assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 148#L18-1 assume !(f_~k~0 > 1073741823); 149#L23-5 [2018-11-18 16:31:13,824 INFO L796 eck$LassoCheckResult]: Loop: 149#L23-5 assume true; 152#L23-3 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 149#L23-5 [2018-11-18 16:31:13,824 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:13,824 INFO L82 PathProgramCache]: Analyzing trace with hash 926920, now seen corresponding path program 1 times [2018-11-18 16:31:13,824 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:13,824 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:13,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:13,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:31:13,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:13,829 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:13,829 INFO L82 PathProgramCache]: Analyzing trace with hash 2727, now seen corresponding path program 1 times [2018-11-18 16:31:13,829 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:13,829 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:13,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:13,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:31:13,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:13,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:13,833 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:13,833 INFO L82 PathProgramCache]: Analyzing trace with hash 890771886, now seen corresponding path program 1 times [2018-11-18 16:31:13,833 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:13,833 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:13,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:13,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:31:13,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:13,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:13,865 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:31:13,865 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:31:13,865 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:31:13,865 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:31:13,865 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 16:31:13,865 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:13,865 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:31:13,866 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:31:13,866 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration2_Lasso [2018-11-18 16:31:13,866 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:31:13,866 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:31:13,867 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 16:31:13,871 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 16:31:13,883 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 16:31:13,885 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 16:31:13,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:31:13,891 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 16:31:13,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:31:13,895 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 16:31:13,897 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 16:31:13,898 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 16:31:13,900 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 16:31:13,966 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:31:13,966 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/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 16:31:13,971 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:13,971 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:13,979 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:13,979 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/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 16:31:13,995 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:13,995 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:13,997 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:13,997 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/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 16:31:14,016 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:14,016 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:14,018 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:14,018 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/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 16:31:14,043 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:14,043 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:14,045 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:14,045 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_6d440809-bdec-4085-9aba-25475ee9401d/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 16:31:14,063 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:14,063 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:14,066 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:14,066 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~d=0, ULTIMATE.start_f_#in~d=0} Honda state: {ULTIMATE.start_f_~d=2, ULTIMATE.start_f_#in~d=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/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 16:31:14,083 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:14,083 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:14,086 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:14,086 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/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 16:31:14,103 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:14,103 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:14,106 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:14,107 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~y~0=0} Honda state: {ULTIMATE.start_f_~y~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/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 16:31:14,123 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:14,123 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:14,125 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:14,125 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/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 16:31:14,141 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:14,142 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:14,144 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:14,144 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:14,163 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:14,163 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:14,166 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:14,167 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:14,182 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:14,182 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:14,200 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 16:31:14,200 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:27,932 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-18 16:31:27,939 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:31:27,939 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:31:27,939 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:31:27,939 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:31:27,939 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 16:31:27,939 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:27,939 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:31:27,939 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:31:27,939 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration2_Lasso [2018-11-18 16:31:27,939 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:31:27,940 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:31:27,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:31:27,945 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 16:31:27,946 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 16:31:27,953 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 16:31:27,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:31:27,956 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 16:31:27,957 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 16:31:27,961 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 16:31:27,963 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 16:31:27,965 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 16:31:27,967 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 16:31:28,010 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:31:28,010 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 16:31:28,010 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 16:31:28,011 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:28,011 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:28,011 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:28,011 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:28,011 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:28,011 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:28,011 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:28,012 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:28,012 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 16:31:28,012 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:28,012 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:28,012 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:28,012 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:28,012 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:28,012 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:28,012 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:28,013 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:28,013 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 16:31:28,013 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:28,013 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:28,013 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:28,013 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:28,015 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:31:28,015 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:31:28,034 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 16:31:28,041 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-18 16:31:28,042 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 16:31:28,042 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 16:31:28,043 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-18 16:31:28,043 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 16:31:28,043 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~z~0, ULTIMATE.start_f_~k~0) = -1*ULTIMATE.start_f_~z~0 + 1*ULTIMATE.start_f_~k~0 Supporting invariants [1*ULTIMATE.start_f_~z~0 - 1 >= 0] [2018-11-18 16:31:28,062 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-18 16:31:28,077 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:28,082 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:28,085 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:28,085 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 16:31:28,086 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2018-11-18 16:31:28,086 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 25 transitions. cyclomatic complexity: 10 Second operand 4 states. [2018-11-18 16:31:28,116 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 25 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 33 states and 43 transitions. Complement of second has 6 states. [2018-11-18 16:31:28,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 16:31:28,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 16:31:28,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2018-11-18 16:31:28,118 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-18 16:31:28,118 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:28,118 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-18 16:31:28,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:28,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-18 16:31:28,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:28,119 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 43 transitions. [2018-11-18 16:31:28,121 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2018-11-18 16:31:28,122 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 29 states and 38 transitions. [2018-11-18 16:31:28,122 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2018-11-18 16:31:28,122 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2018-11-18 16:31:28,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 38 transitions. [2018-11-18 16:31:28,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 16:31:28,122 INFO L705 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2018-11-18 16:31:28,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 38 transitions. [2018-11-18 16:31:28,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 21. [2018-11-18 16:31:28,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-18 16:31:28,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2018-11-18 16:31:28,124 INFO L728 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2018-11-18 16:31:28,124 INFO L608 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2018-11-18 16:31:28,124 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 16:31:28,125 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 28 transitions. [2018-11-18 16:31:28,125 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-18 16:31:28,125 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:31:28,125 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:31:28,126 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-18 16:31:28,126 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 16:31:28,126 INFO L794 eck$LassoCheckResult]: Stem: 262#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 258#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5; 257#L41 assume 0 != main_#t~nondet5;havoc main_#t~nondet5;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 251#L18 assume !(f_~k~0 > 1073741823); 252#L23-2 assume true; 260#L23 assume !(f_~z~0 < f_~k~0); 246#L29-2 [2018-11-18 16:31:28,126 INFO L796 eck$LassoCheckResult]: Loop: 246#L29-2 assume true; 247#L27 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 248#L29 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 246#L29-2 [2018-11-18 16:31:28,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:28,126 INFO L82 PathProgramCache]: Analyzing trace with hash 889509740, now seen corresponding path program 1 times [2018-11-18 16:31:28,126 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:28,126 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:28,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:28,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:31:28,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:28,131 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:28,132 INFO L82 PathProgramCache]: Analyzing trace with hash 55808, now seen corresponding path program 1 times [2018-11-18 16:31:28,132 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:28,132 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:28,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:28,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:31:28,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:28,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:28,136 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:28,136 INFO L82 PathProgramCache]: Analyzing trace with hash -563525963, now seen corresponding path program 1 times [2018-11-18 16:31:28,136 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:28,136 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:28,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:28,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:31:28,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:28,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:28,190 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:31:28,190 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:31:28,190 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:31:28,190 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:31:28,190 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 16:31:28,190 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:28,190 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:31:28,190 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:31:28,190 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration3_Lasso [2018-11-18 16:31:28,191 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:31:28,191 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:31:28,192 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 16:31:28,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:31:28,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:31:28,199 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 16:31:28,200 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 16:31:28,201 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 16:31:28,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:31:28,208 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 16:31:28,210 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 16:31:28,215 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 16:31:28,261 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:31:28,261 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:28,263 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:28,263 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:28,265 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:28,265 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:28,280 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:28,280 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:28,282 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:28,282 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:28,297 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:28,297 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:28,300 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:28,300 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~k~0=0, ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~k~0=-13, ULTIMATE.start_f_~z~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:28,326 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:28,326 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:28,329 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:28,329 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_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:28,345 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:28,345 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:28,347 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:28,347 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:28,362 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:28,362 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:28,364 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:28,365 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:28,381 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:28,381 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:28,399 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 16:31:28,399 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:28,485 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 16:31:28,487 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:31:28,487 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:31:28,487 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:31:28,487 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:31:28,487 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 16:31:28,487 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:28,487 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:31:28,488 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:31:28,488 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration3_Lasso [2018-11-18 16:31:28,488 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:31:28,488 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:31:28,490 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 16:31:28,493 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 16:31:28,496 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 16:31:28,496 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 16:31:28,505 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 16:31:28,506 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 16:31:28,512 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 16:31:28,514 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 16:31:28,515 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 16:31:28,515 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 16:31:28,552 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:31:28,552 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 16:31:28,553 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 16:31:28,553 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:28,553 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:28,553 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:28,554 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:28,554 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:28,554 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:28,554 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:28,555 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:28,555 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 16:31:28,555 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:28,555 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:28,556 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:28,556 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:28,557 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:31:28,557 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:31:28,560 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:28,560 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 16:31:28,560 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:28,561 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:28,561 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:28,561 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:28,561 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:28,561 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:28,561 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:28,562 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:28,562 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 16:31:28,562 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:28,562 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:28,562 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:28,562 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:28,564 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:31:28,564 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:31:28,571 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 16:31:28,575 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-18 16:31:28,575 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 16:31:28,575 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 16:31:28,576 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-18 16:31:28,576 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 16:31:28,576 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-11-18 16:31:28,582 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-18 16:31:28,606 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:28,610 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:28,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:28,620 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:28,628 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 16:31:28,628 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-18 16:31:28,628 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 28 transitions. cyclomatic complexity: 11 Second operand 5 states. [2018-11-18 16:31:28,651 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 28 transitions. cyclomatic complexity: 11. Second operand 5 states. Result 29 states and 38 transitions. Complement of second has 8 states. [2018-11-18 16:31:28,652 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 16:31:28,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 16:31:28,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2018-11-18 16:31:28,652 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-18 16:31:28,653 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:28,653 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-18 16:31:28,653 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:28,653 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-18 16:31:28,653 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:28,653 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 38 transitions. [2018-11-18 16:31:28,654 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-18 16:31:28,654 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 28 states and 37 transitions. [2018-11-18 16:31:28,654 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2018-11-18 16:31:28,654 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2018-11-18 16:31:28,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 37 transitions. [2018-11-18 16:31:28,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 16:31:28,655 INFO L705 BuchiCegarLoop]: Abstraction has 28 states and 37 transitions. [2018-11-18 16:31:28,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 37 transitions. [2018-11-18 16:31:28,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2018-11-18 16:31:28,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-18 16:31:28,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2018-11-18 16:31:28,656 INFO L728 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2018-11-18 16:31:28,656 INFO L608 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2018-11-18 16:31:28,656 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 16:31:28,657 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 36 transitions. [2018-11-18 16:31:28,657 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-18 16:31:28,657 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:31:28,657 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:31:28,657 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-18 16:31:28,657 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 16:31:28,658 INFO L794 eck$LassoCheckResult]: Stem: 378#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 374#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5; 373#L41 assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 365#L18-1 assume !(f_~k~0 > 1073741823); 366#L23-5 assume true; 368#L23-3 assume !(f_~z~0 < f_~k~0); 356#L29-5 [2018-11-18 16:31:28,658 INFO L796 eck$LassoCheckResult]: Loop: 356#L29-5 assume true; 380#L27-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 355#L29-3 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 356#L29-5 [2018-11-18 16:31:28,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:28,658 INFO L82 PathProgramCache]: Analyzing trace with hash 890771884, now seen corresponding path program 1 times [2018-11-18 16:31:28,658 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:28,658 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:28,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:28,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:31:28,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:28,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:28,663 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:28,663 INFO L82 PathProgramCache]: Analyzing trace with hash 96521, now seen corresponding path program 1 times [2018-11-18 16:31:28,663 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:28,663 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:28,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:28,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:31:28,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:28,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:28,666 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:28,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1617659010, now seen corresponding path program 1 times [2018-11-18 16:31:28,666 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:28,667 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:28,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:28,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:31:28,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:28,705 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:31:28,705 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:31:28,705 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:31:28,705 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:31:28,705 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 16:31:28,705 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:28,706 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:31:28,706 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:31:28,706 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration4_Lasso [2018-11-18 16:31:28,706 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:31:28,706 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:31:28,707 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 16:31:28,711 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 16:31:28,712 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 16:31:28,713 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 16:31:28,714 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 16:31:28,718 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 16:31:28,723 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 16:31:28,725 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 16:31:28,727 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 16:31:28,746 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 16:31:28,780 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:31:28,781 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:28,783 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:28,783 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:28,785 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:28,785 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:28,799 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:28,799 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:28,801 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:28,801 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_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:28,816 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:28,816 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:28,818 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:28,818 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:28,833 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:28,833 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:28,835 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:28,835 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:28,849 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:28,850 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:28,852 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:28,852 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0, ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~z~0=1, ULTIMATE.start_f_~k~0=-13} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:28,867 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:28,868 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:28,884 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 16:31:28,884 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:28,944 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 16:31:28,945 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:31:28,945 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:31:28,945 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:31:28,945 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:31:28,946 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 16:31:28,946 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:28,946 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:31:28,946 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:31:28,946 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration4_Lasso [2018-11-18 16:31:28,946 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:31:28,946 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:31:28,947 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 16:31:28,950 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 16:31:28,951 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 16:31:28,952 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 16:31:28,963 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 16:31:28,964 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 16:31:28,964 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 16:31:28,965 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 16:31:28,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:31:28,967 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 16:31:29,003 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:31:29,003 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 16:31:29,003 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 16:31:29,004 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:29,004 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:29,004 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:29,004 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:29,005 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:31:29,005 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:31:29,007 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:29,007 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 16:31:29,008 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:29,008 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:29,008 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:29,008 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:29,008 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:29,008 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:29,008 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:29,009 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:29,009 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 16:31:29,009 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:29,009 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:29,009 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:29,009 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:29,009 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:29,010 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:29,010 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:29,010 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:29,010 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 16:31:29,011 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:29,011 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:29,011 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:29,011 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:29,012 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:31:29,012 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:31:29,018 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 16:31:29,021 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 16:31:29,021 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 16:31:29,021 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 16:31:29,022 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-18 16:31:29,023 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 16:31:29,023 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2018-11-18 16:31:29,034 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-18 16:31:29,049 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:29,052 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:29,055 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:29,065 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 16:31:29,065 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-18 16:31:29,065 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 36 transitions. cyclomatic complexity: 14 Second operand 5 states. [2018-11-18 16:31:29,084 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 36 transitions. cyclomatic complexity: 14. Second operand 5 states. Result 35 states and 46 transitions. Complement of second has 8 states. [2018-11-18 16:31:29,084 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 16:31:29,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 16:31:29,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2018-11-18 16:31:29,085 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-18 16:31:29,085 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:29,085 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-18 16:31:29,085 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:29,085 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-18 16:31:29,085 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:29,085 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 46 transitions. [2018-11-18 16:31:29,086 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-18 16:31:29,086 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 34 states and 45 transitions. [2018-11-18 16:31:29,086 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2018-11-18 16:31:29,086 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2018-11-18 16:31:29,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 45 transitions. [2018-11-18 16:31:29,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 16:31:29,086 INFO L705 BuchiCegarLoop]: Abstraction has 34 states and 45 transitions. [2018-11-18 16:31:29,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 45 transitions. [2018-11-18 16:31:29,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2018-11-18 16:31:29,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-18 16:31:29,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2018-11-18 16:31:29,088 INFO L728 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2018-11-18 16:31:29,088 INFO L608 BuchiCegarLoop]: Abstraction has 33 states and 44 transitions. [2018-11-18 16:31:29,088 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 16:31:29,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 44 transitions. [2018-11-18 16:31:29,089 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-18 16:31:29,089 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:31:29,089 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:31:29,089 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:31:29,089 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-18 16:31:29,089 INFO L794 eck$LassoCheckResult]: Stem: 505#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 501#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5; 499#L41 assume 0 != main_#t~nondet5;havoc main_#t~nondet5;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 495#L18 assume !(f_~k~0 > 1073741823); 496#L23-2 assume true; 503#L23 assume !(f_~z~0 < f_~k~0); 506#L29-2 assume true; 483#L27 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 484#L29 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 497#L30 [2018-11-18 16:31:29,089 INFO L796 eck$LassoCheckResult]: Loop: 497#L30 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 487#L29-2 assume true; 488#L27 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 510#L29 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 497#L30 [2018-11-18 16:31:29,089 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:29,089 INFO L82 PathProgramCache]: Analyzing trace with hash -563525967, now seen corresponding path program 1 times [2018-11-18 16:31:29,089 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:29,089 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:29,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:29,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:31:29,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:29,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:29,093 INFO L82 PathProgramCache]: Analyzing trace with hash 2051801, now seen corresponding path program 1 times [2018-11-18 16:31:29,093 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:29,093 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:29,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:29,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:31:29,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:29,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:29,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1713749385, now seen corresponding path program 1 times [2018-11-18 16:31:29,097 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:29,098 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:29,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:29,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:31:29,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:29,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:29,134 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:31:29,134 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:31:29,134 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:31:29,134 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:31:29,134 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 16:31:29,134 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:29,134 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:31:29,134 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:31:29,135 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-18 16:31:29,135 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:31:29,135 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:31:29,135 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 16:31:29,143 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 16:31:29,147 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 16:31:29,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:31:29,170 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:31:29,170 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:29,171 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:29,171 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:29,187 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 16:31:29,187 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:29,195 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:29,196 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=0}, {ULTIMATE.start_f_~z~0=-3}, {ULTIMATE.start_f_~z~0=2}] Lambdas: [0, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:29,210 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:29,211 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:29,213 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:29,213 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=4, ULTIMATE.start_f_~y~0=4} Honda state: {ULTIMATE.start_f_#t~nondet4=4, ULTIMATE.start_f_~y~0=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:29,228 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:29,228 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:29,230 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:29,230 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-1} Honda state: {ULTIMATE.start_f_#t~nondet3=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:29,245 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:29,245 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:29,260 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:29,260 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Honda state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2018-11-18 16:31:29,296 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:31:29,296 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:31:29,297 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:31:29,297 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:31:29,297 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 16:31:29,297 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:29,297 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:31:29,297 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:31:29,297 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration5_Lasso [2018-11-18 16:31:29,297 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:31:29,297 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:31:29,299 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 16:31:29,303 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 16:31:29,304 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 16:31:29,306 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 16:31:29,319 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 16:31:29,320 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 16:31:29,321 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 16:31:29,322 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 16:31:29,323 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 16:31:29,376 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:31:29,376 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:29,379 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:29,379 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:29,382 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:29,382 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0, ULTIMATE.start_f_~y~0=0} Honda state: {ULTIMATE.start_f_#t~nondet4=4, ULTIMATE.start_f_~y~0=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:29,398 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:29,398 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:29,400 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:29,400 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:29,416 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:29,416 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:29,419 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:29,419 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-1} Honda state: {ULTIMATE.start_f_#t~nondet3=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:29,434 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:29,435 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:29,460 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 16:31:29,460 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:29,594 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 16:31:29,595 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:31:29,595 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:31:29,595 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:31:29,595 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:31:29,595 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 16:31:29,595 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:29,595 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:31:29,596 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:31:29,596 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration5_Lasso [2018-11-18 16:31:29,596 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:31:29,596 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:31:29,597 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 16:31:29,600 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 16:31:29,602 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 16:31:29,607 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 16:31:29,608 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 16:31:29,609 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 16:31:29,610 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 16:31:29,611 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 16:31:29,611 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 16:31:29,650 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:31:29,650 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 16:31:29,650 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 16:31:29,651 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:29,651 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:29,651 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:29,651 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:29,651 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:31:29,652 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:31:29,654 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:29,654 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 16:31:29,654 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:29,655 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:29,655 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:29,655 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-18 16:31:29,655 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:29,655 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-18 16:31:29,655 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:29,656 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:29,656 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 16:31:29,656 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:29,657 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:29,657 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:29,657 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:29,657 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:31:29,657 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:31:29,663 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 16:31:29,667 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-18 16:31:29,667 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 16:31:29,668 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 16:31:29,668 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-18 16:31:29,669 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 16:31:29,669 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0, ULTIMATE.start_f_~d) = 1*ULTIMATE.start_f_~x~0 - 1*ULTIMATE.start_f_~d Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-11-18 16:31:29,675 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-18 16:31:29,695 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:29,700 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:29,707 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:29,728 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 16:31:29,728 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 16:31:29,728 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 44 transitions. cyclomatic complexity: 17 Second operand 5 states. [2018-11-18 16:31:29,781 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 44 transitions. cyclomatic complexity: 17. Second operand 5 states. Result 46 states and 61 transitions. Complement of second has 7 states. [2018-11-18 16:31:29,781 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 16:31:29,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 16:31:29,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2018-11-18 16:31:29,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-18 16:31:29,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:29,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 13 letters. Loop has 4 letters. [2018-11-18 16:31:29,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:29,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 9 letters. Loop has 8 letters. [2018-11-18 16:31:29,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:29,783 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 61 transitions. [2018-11-18 16:31:29,784 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-11-18 16:31:29,785 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 41 states and 54 transitions. [2018-11-18 16:31:29,785 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2018-11-18 16:31:29,785 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2018-11-18 16:31:29,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 54 transitions. [2018-11-18 16:31:29,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 16:31:29,785 INFO L705 BuchiCegarLoop]: Abstraction has 41 states and 54 transitions. [2018-11-18 16:31:29,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 54 transitions. [2018-11-18 16:31:29,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2018-11-18 16:31:29,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-18 16:31:29,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 53 transitions. [2018-11-18 16:31:29,791 INFO L728 BuchiCegarLoop]: Abstraction has 40 states and 53 transitions. [2018-11-18 16:31:29,791 INFO L608 BuchiCegarLoop]: Abstraction has 40 states and 53 transitions. [2018-11-18 16:31:29,791 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-18 16:31:29,791 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 53 transitions. [2018-11-18 16:31:29,791 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-11-18 16:31:29,791 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:31:29,791 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:31:29,792 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:31:29,792 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-18 16:31:29,792 INFO L794 eck$LassoCheckResult]: Stem: 660#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 656#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5; 654#L41 assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 642#L18-1 assume !(f_~k~0 > 1073741823); 643#L23-5 assume true; 646#L23-3 assume !(f_~z~0 < f_~k~0); 655#L29-5 assume true; 664#L27-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 632#L29-3 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 633#L30-1 [2018-11-18 16:31:29,792 INFO L796 eck$LassoCheckResult]: Loop: 633#L30-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 651#L29-5 assume true; 662#L27-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 670#L29-3 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 633#L30-1 [2018-11-18 16:31:29,792 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:29,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1617659014, now seen corresponding path program 1 times [2018-11-18 16:31:29,792 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:29,792 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:29,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:29,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:31:29,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:29,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:29,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:29,799 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:29,799 INFO L82 PathProgramCache]: Analyzing trace with hash 3313945, now seen corresponding path program 1 times [2018-11-18 16:31:29,799 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:29,799 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:29,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:29,800 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:31:29,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:29,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:29,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:29,802 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:29,802 INFO L82 PathProgramCache]: Analyzing trace with hash -2118473710, now seen corresponding path program 1 times [2018-11-18 16:31:29,802 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:29,803 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:29,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:29,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:31:29,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:29,841 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:31:29,841 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:31:29,841 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:31:29,841 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:31:29,841 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 16:31:29,841 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:29,841 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:31:29,841 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:31:29,841 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration6_Loop [2018-11-18 16:31:29,842 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:31:29,842 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:31:29,842 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 16:31:29,847 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 16:31:29,850 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 16:31:29,853 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 16:31:29,895 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:31:29,895 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:29,898 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:29,898 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:29,901 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:29,902 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-1} Honda state: {ULTIMATE.start_f_#t~nondet3=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:29,919 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:29,919 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:29,941 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 16:31:29,941 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:29,949 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:29,949 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=0}, {ULTIMATE.start_f_~z~0=-3}, {ULTIMATE.start_f_~z~0=2}] Lambdas: [0, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:29,964 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:29,964 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:29,979 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:29,979 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Honda state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:29,981 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:29,981 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:29,984 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:29,984 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=4, ULTIMATE.start_f_~y~0=4} Honda state: {ULTIMATE.start_f_#t~nondet4=4, ULTIMATE.start_f_~y~0=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2018-11-18 16:31:30,019 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:31:30,019 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:31:30,020 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:31:30,020 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:31:30,020 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 16:31:30,020 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:30,020 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:31:30,020 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:31:30,020 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration6_Lasso [2018-11-18 16:31:30,020 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:31:30,020 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:31:30,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:31:30,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:31:30,028 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 16:31:30,029 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 16:31:30,030 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 16:31:30,030 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 16:31:30,031 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 16:31:30,033 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 16:31:30,034 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 16:31:30,079 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:31:30,079 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:30,083 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:30,083 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:30,099 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 16:31:30,099 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:30,109 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:30,109 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0, ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~z~0=1, ULTIMATE.start_f_~k~0=-2} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=0, ULTIMATE.start_f_~k~0=0}, {ULTIMATE.start_f_~z~0=-8, ULTIMATE.start_f_~k~0=6}, {ULTIMATE.start_f_~z~0=7, ULTIMATE.start_f_~k~0=-6}] Lambdas: [15, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:30,126 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:30,126 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:30,128 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:30,129 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~y~0=0, ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_~y~0=4, ULTIMATE.start_f_#t~nondet4=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:30,143 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:30,144 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:30,146 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:30,146 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:30,163 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:30,164 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:30,165 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:30,165 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:30,180 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:30,180 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:30,182 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:30,182 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:30,196 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:30,197 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:30,198 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:30,198 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_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:30,213 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:30,213 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:30,215 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:30,215 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-1} Honda state: {ULTIMATE.start_f_#t~nondet3=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 60 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:30,230 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:30,230 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:30,232 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:30,232 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 61 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:30,247 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:30,247 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 62 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:30,275 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 16:31:30,275 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:30,398 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 16:31:30,399 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:31:30,399 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:31:30,399 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:31:30,399 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:31:30,399 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 16:31:30,399 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:30,399 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:31:30,399 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:31:30,399 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration6_Lasso [2018-11-18 16:31:30,399 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:31:30,399 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:31:30,400 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 16:31:30,407 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 16:31:30,410 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 16:31:30,414 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 16:31:30,415 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 16:31:30,415 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 16:31:30,416 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 16:31:30,417 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 16:31:30,419 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 16:31:30,460 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:31:30,460 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 16:31:30,460 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 16:31:30,460 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:30,461 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:30,461 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:30,461 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:30,462 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:31:30,462 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:31:30,467 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 16:31:30,470 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 16:31:30,470 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 16:31:30,470 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 16:31:30,471 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-18 16:31:30,471 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 16:31:30,471 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0, ULTIMATE.start_f_~d) = 1*ULTIMATE.start_f_~x~0 - 1*ULTIMATE.start_f_~d Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2018-11-18 16:31:30,483 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-18 16:31:30,501 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:30,505 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:30,509 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:30,526 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 16:31:30,527 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 16:31:30,527 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 53 transitions. cyclomatic complexity: 20 Second operand 5 states. [2018-11-18 16:31:30,554 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 53 transitions. cyclomatic complexity: 20. Second operand 5 states. Result 53 states and 70 transitions. Complement of second has 7 states. [2018-11-18 16:31:30,554 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 16:31:30,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 16:31:30,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2018-11-18 16:31:30,555 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-18 16:31:30,555 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:30,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 13 letters. Loop has 4 letters. [2018-11-18 16:31:30,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:30,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 9 letters. Loop has 8 letters. [2018-11-18 16:31:30,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:30,556 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 70 transitions. [2018-11-18 16:31:30,557 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-18 16:31:30,557 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 48 states and 63 transitions. [2018-11-18 16:31:30,557 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2018-11-18 16:31:30,558 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2018-11-18 16:31:30,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 63 transitions. [2018-11-18 16:31:30,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 16:31:30,558 INFO L705 BuchiCegarLoop]: Abstraction has 48 states and 63 transitions. [2018-11-18 16:31:30,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 63 transitions. [2018-11-18 16:31:30,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2018-11-18 16:31:30,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-18 16:31:30,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2018-11-18 16:31:30,560 INFO L728 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2018-11-18 16:31:30,560 INFO L608 BuchiCegarLoop]: Abstraction has 47 states and 62 transitions. [2018-11-18 16:31:30,560 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-18 16:31:30,560 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 62 transitions. [2018-11-18 16:31:30,561 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-18 16:31:30,561 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:31:30,561 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:31:30,561 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:31:30,561 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 16:31:30,561 INFO L794 eck$LassoCheckResult]: Stem: 829#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 825#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5; 823#L41 assume 0 != main_#t~nondet5;havoc main_#t~nondet5;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 811#L18 assume !(f_~k~0 > 1073741823); 812#L23-2 assume true; 827#L23 assume !(f_~z~0 < f_~k~0); 830#L29-2 assume true; 837#L27 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 841#L29 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 821#L30 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 808#L29-2 assume true; 805#L27 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 806#L29 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 807#L29-2 [2018-11-18 16:31:30,562 INFO L796 eck$LassoCheckResult]: Loop: 807#L29-2 assume true; 803#L27 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 804#L29 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 807#L29-2 [2018-11-18 16:31:30,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:30,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1713749389, now seen corresponding path program 1 times [2018-11-18 16:31:30,562 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:30,562 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:30,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:30,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:31:30,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:30,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:30,568 INFO L82 PathProgramCache]: Analyzing trace with hash 55808, now seen corresponding path program 2 times [2018-11-18 16:31:30,568 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:30,568 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:30,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:30,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:31:30,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:30,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:30,571 INFO L82 PathProgramCache]: Analyzing trace with hash 31826164, now seen corresponding path program 2 times [2018-11-18 16:31:30,571 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:30,571 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:30,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:30,571 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:31:30,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:30,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:30,635 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:31:30,635 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:31:30,635 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:31:30,635 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:31:30,635 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 16:31:30,635 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:30,635 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:31:30,635 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:31:30,635 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration7_Lasso [2018-11-18 16:31:30,636 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:31:30,636 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:31:30,636 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 16:31:30,640 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 16:31:30,647 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 16:31:30,649 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 16:31:30,650 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 16:31:30,652 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 16:31:30,654 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 16:31:30,656 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 16:31:30,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:31:30,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:31:30,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:31:30,696 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:31:30,696 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2018-11-18 16:31:30,707 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:30,707 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:30,723 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:30,723 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 64 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:30,725 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:30,725 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:30,742 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 16:31:30,742 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:30,796 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 16:31:30,796 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:31:30,797 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:31:30,797 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:31:30,797 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:31:30,797 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 16:31:30,797 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:30,797 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:31:30,797 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:31:30,797 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration7_Lasso [2018-11-18 16:31:30,797 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:31:30,797 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:31:30,798 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 16:31:30,803 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 16:31:30,805 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 16:31:30,807 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 16:31:30,808 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 16:31:30,815 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 16:31:30,816 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 16:31:30,817 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 16:31:30,819 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 16:31:30,820 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 16:31:30,835 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 16:31:30,869 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:31:30,869 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 16:31:30,869 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 16:31:30,869 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:30,869 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:30,870 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:30,870 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:30,870 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:31:30,870 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:31:30,871 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:30,872 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 16:31:30,872 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:30,872 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:30,872 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:30,872 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:30,872 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:31:30,873 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:31:30,873 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:30,873 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 16:31:30,874 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:30,874 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:30,874 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:30,874 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:30,874 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:30,874 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:30,874 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:30,874 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:30,874 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 16:31:30,875 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:30,875 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:30,875 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:30,875 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:30,875 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:30,875 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:30,875 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:30,875 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:30,875 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 16:31:30,876 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:30,876 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:30,876 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:30,876 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:30,876 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:30,876 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:30,876 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:30,876 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:30,876 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 16:31:30,877 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:30,877 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:30,877 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:30,877 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:30,877 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:30,877 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:30,877 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:30,877 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:30,877 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 16:31:30,877 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:30,877 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:30,878 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:30,878 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:30,878 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:31:30,878 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:31:30,879 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:30,879 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 16:31:30,879 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:30,879 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:30,880 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:30,880 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:30,880 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:30,880 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:30,880 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:30,880 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:30,880 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 16:31:30,881 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:30,881 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:30,881 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:30,881 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:30,881 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:30,881 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:30,881 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:30,881 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:30,881 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 16:31:30,882 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:30,882 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:30,882 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:30,882 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:30,883 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:31:30,883 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:31:30,887 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 16:31:30,893 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-11-18 16:31:30,893 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-11-18 16:31:30,893 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 16:31:30,894 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-18 16:31:30,894 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 16:31:30,894 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-11-18 16:31:30,902 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-18 16:31:30,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:30,928 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:30,933 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:30,939 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 16:31:30,939 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-18 16:31:30,939 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 62 transitions. cyclomatic complexity: 23 Second operand 5 states. [2018-11-18 16:31:30,958 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 62 transitions. cyclomatic complexity: 23. Second operand 5 states. Result 74 states and 93 transitions. Complement of second has 8 states. [2018-11-18 16:31:30,958 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 16:31:30,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 16:31:30,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2018-11-18 16:31:30,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 13 letters. Loop has 3 letters. [2018-11-18 16:31:30,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:30,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 16 letters. Loop has 3 letters. [2018-11-18 16:31:30,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:30,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 13 letters. Loop has 6 letters. [2018-11-18 16:31:30,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:30,959 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 74 states and 93 transitions. [2018-11-18 16:31:30,960 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-18 16:31:30,961 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 74 states to 62 states and 79 transitions. [2018-11-18 16:31:30,961 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2018-11-18 16:31:30,961 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2018-11-18 16:31:30,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 79 transitions. [2018-11-18 16:31:30,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 16:31:30,961 INFO L705 BuchiCegarLoop]: Abstraction has 62 states and 79 transitions. [2018-11-18 16:31:30,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 79 transitions. [2018-11-18 16:31:30,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 59. [2018-11-18 16:31:30,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-11-18 16:31:30,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 76 transitions. [2018-11-18 16:31:30,964 INFO L728 BuchiCegarLoop]: Abstraction has 59 states and 76 transitions. [2018-11-18 16:31:30,964 INFO L608 BuchiCegarLoop]: Abstraction has 59 states and 76 transitions. [2018-11-18 16:31:30,964 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-11-18 16:31:30,964 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 76 transitions. [2018-11-18 16:31:30,965 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-18 16:31:30,965 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:31:30,965 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:31:30,965 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:31:30,966 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 16:31:30,966 INFO L794 eck$LassoCheckResult]: Stem: 1037#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1033#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5; 1031#L41 assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1016#L18-1 assume !(f_~k~0 > 1073741823); 1017#L23-5 assume true; 1020#L23-3 assume !(f_~z~0 < f_~k~0); 1032#L29-5 assume true; 1039#L27-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1043#L29-3 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 1026#L30-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1027#L29-5 assume true; 1046#L27-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1045#L29-3 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1004#L29-5 [2018-11-18 16:31:30,966 INFO L796 eck$LassoCheckResult]: Loop: 1004#L29-5 assume true; 1041#L27-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1003#L29-3 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1004#L29-5 [2018-11-18 16:31:30,966 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:30,966 INFO L82 PathProgramCache]: Analyzing trace with hash -2118473706, now seen corresponding path program 1 times [2018-11-18 16:31:30,966 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:30,966 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:30,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:30,967 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:31:30,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:30,972 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:30,972 INFO L82 PathProgramCache]: Analyzing trace with hash 96521, now seen corresponding path program 2 times [2018-11-18 16:31:30,972 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:30,973 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:30,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:30,973 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:31:30,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:30,975 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:30,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1200661292, now seen corresponding path program 2 times [2018-11-18 16:31:30,976 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:30,976 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:30,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:30,976 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:31:30,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:30,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:30,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:31,049 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:31:31,049 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:31:31,049 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:31:31,049 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:31:31,050 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 16:31:31,050 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:31,050 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:31:31,050 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:31:31,050 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration8_Lasso [2018-11-18 16:31:31,050 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:31:31,050 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:31:31,051 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 16:31:31,054 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 16:31:31,061 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 16:31:31,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:31:31,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:31:31,066 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 16:31:31,068 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 16:31:31,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:31:31,071 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 16:31:31,072 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 16:31:31,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:31:31,108 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:31:31,109 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 66 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:31,111 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:31,111 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:31,113 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:31,113 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_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:31,128 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:31,128 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:31,144 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 16:31:31,145 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:31,203 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 16:31:31,204 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:31:31,204 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:31:31,204 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:31:31,204 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:31:31,204 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 16:31:31,204 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:31,204 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:31:31,204 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:31:31,204 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration8_Lasso [2018-11-18 16:31:31,204 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:31:31,204 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:31:31,205 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 16:31:31,209 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 16:31:31,214 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 16:31:31,215 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 16:31:31,216 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 16:31:31,217 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 16:31:31,219 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 16:31:31,220 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 16:31:31,221 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 16:31:31,222 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 16:31:31,223 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 16:31:31,257 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:31:31,257 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 16:31:31,257 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 16:31:31,257 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:31,258 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:31,258 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:31,258 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:31,258 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:31,258 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:31,258 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:31,259 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:31,259 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 16:31:31,259 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:31,259 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:31,259 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:31,259 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:31,260 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:31:31,260 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:31:31,266 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 16:31:31,275 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 16:31:31,275 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 16:31:31,276 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 16:31:31,276 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-18 16:31:31,277 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 16:31:31,277 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2018-11-18 16:31:31,282 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-18 16:31:31,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:31,306 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:31,312 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:31,320 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 16:31:31,320 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-18 16:31:31,320 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 59 states and 76 transitions. cyclomatic complexity: 27 Second operand 5 states. [2018-11-18 16:31:31,367 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 59 states and 76 transitions. cyclomatic complexity: 27. Second operand 5 states. Result 86 states and 107 transitions. Complement of second has 8 states. [2018-11-18 16:31:31,368 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 16:31:31,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 16:31:31,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2018-11-18 16:31:31,368 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 13 letters. Loop has 3 letters. [2018-11-18 16:31:31,369 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:31,369 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 16 letters. Loop has 3 letters. [2018-11-18 16:31:31,369 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:31,369 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 13 letters. Loop has 6 letters. [2018-11-18 16:31:31,369 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:31,369 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 107 transitions. [2018-11-18 16:31:31,372 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-18 16:31:31,373 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 74 states and 93 transitions. [2018-11-18 16:31:31,373 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2018-11-18 16:31:31,373 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2018-11-18 16:31:31,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 93 transitions. [2018-11-18 16:31:31,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 16:31:31,373 INFO L705 BuchiCegarLoop]: Abstraction has 74 states and 93 transitions. [2018-11-18 16:31:31,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 93 transitions. [2018-11-18 16:31:31,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 71. [2018-11-18 16:31:31,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-11-18 16:31:31,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 90 transitions. [2018-11-18 16:31:31,378 INFO L728 BuchiCegarLoop]: Abstraction has 71 states and 90 transitions. [2018-11-18 16:31:31,378 INFO L608 BuchiCegarLoop]: Abstraction has 71 states and 90 transitions. [2018-11-18 16:31:31,378 INFO L442 BuchiCegarLoop]: ======== Iteration 9============ [2018-11-18 16:31:31,378 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 90 transitions. [2018-11-18 16:31:31,379 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-18 16:31:31,379 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:31:31,379 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:31:31,379 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:31:31,379 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 16:31:31,379 INFO L794 eck$LassoCheckResult]: Stem: 1263#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1259#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5; 1257#L41 assume 0 != main_#t~nondet5;havoc main_#t~nondet5;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1244#L18 assume !(f_~k~0 > 1073741823); 1245#L23-2 assume true; 1261#L23 assume !(f_~z~0 < f_~k~0); 1235#L29-2 assume true; 1236#L27 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1286#L29 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1284#L29-2 assume true; 1282#L27 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1280#L29 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 1279#L30 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1278#L29-2 assume true; 1276#L27 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1273#L29 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1274#L29-2 [2018-11-18 16:31:31,379 INFO L796 eck$LassoCheckResult]: Loop: 1274#L29-2 assume true; 1277#L27 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1275#L29 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1274#L29-2 [2018-11-18 16:31:31,379 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:31,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1709980196, now seen corresponding path program 3 times [2018-11-18 16:31:31,380 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:31,380 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:31,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:31,380 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:31:31,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:31,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:31,385 INFO L82 PathProgramCache]: Analyzing trace with hash 55808, now seen corresponding path program 3 times [2018-11-18 16:31:31,385 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:31,385 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:31,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:31,386 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:31:31,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:31,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:31,388 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:31,388 INFO L82 PathProgramCache]: Analyzing trace with hash -587052803, now seen corresponding path program 4 times [2018-11-18 16:31:31,388 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:31,388 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:31,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:31,388 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:31:31,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:31,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:31,448 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:31:31,449 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:31:31,449 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:31:31,449 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:31:31,449 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 16:31:31,449 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:31,449 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:31:31,449 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:31:31,449 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration9_Lasso [2018-11-18 16:31:31,449 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:31:31,449 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:31:31,450 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 16:31:31,455 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 16:31:31,457 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 16:31:31,458 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 16:31:31,460 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 16:31:31,461 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 16:31:31,462 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 16:31:31,463 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 16:31:31,464 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 16:31:31,465 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 16:31:31,471 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 16:31:31,521 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:31:31,521 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 69 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:31,523 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:31,523 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:31,525 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:31,525 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 70 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:31,548 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:31,548 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:31,550 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:31,550 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 71 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:31,566 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:31,566 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:31,568 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:31,568 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 72 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:31,583 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:31,584 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:31,585 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:31,586 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 73 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 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:31,609 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:31,609 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:31,611 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:31,611 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 74 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 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:31,634 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:31,634 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:31,638 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:31,639 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 75 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 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:31,662 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:31,662 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:31,685 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:31,685 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 76 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 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:31,687 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:31,687 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:31,689 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:31,689 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_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 77 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 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:31,705 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:31,705 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:31,707 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:31,707 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 78 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 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:31,722 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:31,722 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 79 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 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:31,739 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 16:31:31,739 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:31,816 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 16:31:31,817 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:31:31,817 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:31:31,817 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:31:31,817 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:31:31,817 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 16:31:31,817 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:31,817 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:31:31,817 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:31:31,817 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration9_Lasso [2018-11-18 16:31:31,817 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:31:31,817 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:31:31,818 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 16:31:31,820 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 16:31:31,821 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 16:31:31,822 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 16:31:31,824 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 16:31:31,825 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 16:31:31,826 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 16:31:31,827 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 16:31:31,829 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 16:31:31,839 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 16:31:31,845 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 16:31:31,909 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:31:31,909 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 16:31:31,910 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 16:31:31,910 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:31,910 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:31,910 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:31,910 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:31,911 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:31,911 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:31,911 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:31,911 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:31,912 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 16:31:31,912 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:31,912 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:31,912 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:31,912 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:31,912 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:31,912 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:31,913 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:31,913 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:31,913 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 16:31:31,913 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:31,914 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:31,914 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:31,914 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:31,914 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:31,914 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:31,914 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:31,915 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:31,915 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 16:31:31,915 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:31,915 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:31,916 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:31,916 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:31,916 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:31:31,916 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:31:31,917 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:31,918 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 16:31:31,918 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:31,918 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:31,918 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:31,918 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:31,919 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:31,919 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:31,919 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:31,919 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:31,919 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 16:31:31,920 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:31,920 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:31,920 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:31,920 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:31,920 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:31,920 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:31,921 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:31,921 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:31,922 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 16:31:31,922 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:31,922 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:31,922 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:31,922 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:31,923 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:31,923 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:31,923 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:31,923 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:31,924 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 16:31:31,924 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:31,924 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:31,924 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:31,924 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:31,925 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:31:31,925 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:31:31,927 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:31,927 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 16:31:31,927 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:31,927 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:31,928 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:31,928 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:31,928 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:31,928 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:31,928 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:31,929 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:31,929 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 16:31:31,929 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:31,929 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:31,929 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:31,929 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:31,930 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:31:31,930 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:31:31,935 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 16:31:31,938 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-18 16:31:31,939 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 16:31:31,939 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 16:31:31,940 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-18 16:31:31,940 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 16:31:31,940 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-11-18 16:31:31,971 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-18 16:31:31,987 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:31,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:31,991 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:31,995 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:32,005 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 16:31:32,005 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-18 16:31:32,005 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 90 transitions. cyclomatic complexity: 31 Second operand 5 states. [2018-11-18 16:31:32,023 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 90 transitions. cyclomatic complexity: 31. Second operand 5 states. Result 84 states and 103 transitions. Complement of second has 8 states. [2018-11-18 16:31:32,023 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 16:31:32,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 16:31:32,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2018-11-18 16:31:32,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 16 letters. Loop has 3 letters. [2018-11-18 16:31:32,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:32,023 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 16:31:32,034 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:32,039 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:32,042 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:32,049 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 16:31:32,049 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-18 16:31:32,050 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 90 transitions. cyclomatic complexity: 31 Second operand 5 states. [2018-11-18 16:31:32,065 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 90 transitions. cyclomatic complexity: 31. Second operand 5 states. Result 84 states and 103 transitions. Complement of second has 8 states. [2018-11-18 16:31:32,065 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 16:31:32,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 16:31:32,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2018-11-18 16:31:32,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 16 letters. Loop has 3 letters. [2018-11-18 16:31:32,066 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:32,066 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 16:31:32,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:32,083 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:32,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:32,087 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:32,093 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 16:31:32,093 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-18 16:31:32,093 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 90 transitions. cyclomatic complexity: 31 Second operand 5 states. [2018-11-18 16:31:32,109 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 90 transitions. cyclomatic complexity: 31. Second operand 5 states. Result 89 states and 110 transitions. Complement of second has 7 states. [2018-11-18 16:31:32,110 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 16:31:32,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 16:31:32,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2018-11-18 16:31:32,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 16 letters. Loop has 3 letters. [2018-11-18 16:31:32,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:32,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 19 letters. Loop has 3 letters. [2018-11-18 16:31:32,111 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:32,111 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 16 letters. Loop has 6 letters. [2018-11-18 16:31:32,111 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:32,111 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 89 states and 110 transitions. [2018-11-18 16:31:32,112 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 16:31:32,112 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 89 states to 37 states and 46 transitions. [2018-11-18 16:31:32,112 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2018-11-18 16:31:32,112 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2018-11-18 16:31:32,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 46 transitions. [2018-11-18 16:31:32,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 16:31:32,113 INFO L705 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2018-11-18 16:31:32,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 46 transitions. [2018-11-18 16:31:32,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-18 16:31:32,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 16:31:32,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 46 transitions. [2018-11-18 16:31:32,115 INFO L728 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2018-11-18 16:31:32,115 INFO L608 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2018-11-18 16:31:32,115 INFO L442 BuchiCegarLoop]: ======== Iteration 10============ [2018-11-18 16:31:32,115 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 46 transitions. [2018-11-18 16:31:32,115 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 16:31:32,115 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:31:32,115 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:31:32,116 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:31:32,116 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 16:31:32,116 INFO L794 eck$LassoCheckResult]: Stem: 1796#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1790#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5; 1791#L41 assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1797#L18-1 assume !(f_~k~0 > 1073741823); 1798#L23-5 assume true; 1799#L23-3 assume !(f_~z~0 < f_~k~0); 1805#L29-5 assume true; 1806#L27-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1824#L29-3 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1822#L29-5 assume true; 1821#L27-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1812#L29-3 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 1813#L30-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1819#L29-5 assume true; 1818#L27-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1816#L29-3 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1793#L29-5 [2018-11-18 16:31:32,116 INFO L796 eck$LassoCheckResult]: Loop: 1793#L29-5 assume true; 1810#L27-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1792#L29-3 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1793#L29-5 [2018-11-18 16:31:32,116 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:32,116 INFO L82 PathProgramCache]: Analyzing trace with hash 477492740, now seen corresponding path program 3 times [2018-11-18 16:31:32,117 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:32,117 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:32,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:32,117 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:31:32,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:32,122 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:32,123 INFO L82 PathProgramCache]: Analyzing trace with hash 96521, now seen corresponding path program 3 times [2018-11-18 16:31:32,123 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:32,123 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:32,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:32,123 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:31:32,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:32,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:32,126 INFO L82 PathProgramCache]: Analyzing trace with hash 54599718, now seen corresponding path program 4 times [2018-11-18 16:31:32,126 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:31:32,126 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:31:32,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:32,127 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:31:32,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:31:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:31:32,198 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:31:32,198 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:31:32,198 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:31:32,198 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:31:32,198 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 16:31:32,198 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:32,199 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:31:32,199 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:31:32,199 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration10_Lasso [2018-11-18 16:31:32,199 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:31:32,199 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:31:32,200 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 16:31:32,205 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 16:31:32,207 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 16:31:32,209 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 16:31:32,210 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 16:31:32,217 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 16:31:32,218 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 16:31:32,219 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 16:31:32,220 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 16:31:32,223 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 16:31:32,225 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 16:31:32,266 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:31:32,266 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 80 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 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:32,270 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:32,270 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:32,293 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:32,294 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~k~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 81 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 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:32,296 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:32,296 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:32,298 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:32,298 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 82 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 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:32,326 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:32,326 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:32,341 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:32,341 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 83 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 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:32,344 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:32,344 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:32,346 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:31:32,346 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_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 84 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 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:32,361 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:31:32,361 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d440809-bdec-4085-9aba-25475ee9401d/bin-2019/uautomizer/z3 Starting monitored process 85 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 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:32,377 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 16:31:32,377 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:31:32,438 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 16:31:32,439 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:31:32,439 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:31:32,439 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:31:32,439 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:31:32,439 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 16:31:32,440 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:31:32,440 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:31:32,440 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:31:32,440 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration10_Lasso [2018-11-18 16:31:32,440 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:31:32,440 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:31:32,441 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 16:31:32,447 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 16:31:32,449 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 16:31:32,451 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 16:31:32,452 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 16:31:32,457 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 16:31:32,458 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 16:31:32,459 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 16:31:32,459 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 16:31:32,461 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 16:31:32,461 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 16:31:32,498 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:31:32,498 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 16:31:32,498 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 16:31:32,498 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:32,499 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:32,499 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:32,499 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:32,499 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:31:32,499 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:31:32,500 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:32,500 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 16:31:32,500 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:32,500 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:32,500 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:32,500 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:32,500 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:32,501 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:32,501 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:32,501 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:32,501 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 16:31:32,501 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:32,501 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:32,501 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:32,501 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:32,502 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:31:32,502 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:31:32,503 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:32,503 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 16:31:32,504 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:32,504 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:31:32,504 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:32,504 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:32,504 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:32,504 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:31:32,504 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:31:32,505 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:31:32,505 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 16:31:32,505 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:31:32,505 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:31:32,505 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:31:32,505 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:31:32,506 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:31:32,506 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:31:32,510 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 16:31:32,512 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 16:31:32,512 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 16:31:32,512 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 16:31:32,513 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-18 16:31:32,513 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 16:31:32,513 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2018-11-18 16:31:32,522 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-18 16:31:32,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:32,541 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:32,545 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:32,551 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 16:31:32,551 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-18 16:31:32,551 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 15 Second operand 5 states. [2018-11-18 16:31:32,563 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 15. Second operand 5 states. Result 50 states and 59 transitions. Complement of second has 8 states. [2018-11-18 16:31:32,564 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 16:31:32,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 16:31:32,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2018-11-18 16:31:32,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 16 letters. Loop has 3 letters. [2018-11-18 16:31:32,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:32,564 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 16:31:32,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:32,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:32,578 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:32,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:32,581 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:32,587 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 16:31:32,587 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-18 16:31:32,587 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 15 Second operand 5 states. [2018-11-18 16:31:32,599 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 15. Second operand 5 states. Result 50 states and 59 transitions. Complement of second has 8 states. [2018-11-18 16:31:32,599 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 16:31:32,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 16:31:32,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2018-11-18 16:31:32,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 16 letters. Loop has 3 letters. [2018-11-18 16:31:32,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:32,599 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 16:31:32,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:31:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:32,614 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:31:32,617 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:31:32,623 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 16:31:32,623 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-18 16:31:32,623 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 15 Second operand 5 states. [2018-11-18 16:31:32,643 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 46 transitions. cyclomatic complexity: 15. Second operand 5 states. Result 55 states and 66 transitions. Complement of second has 7 states. [2018-11-18 16:31:32,643 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 16:31:32,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 16:31:32,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2018-11-18 16:31:32,643 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 16 letters. Loop has 3 letters. [2018-11-18 16:31:32,643 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:32,644 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 19 letters. Loop has 3 letters. [2018-11-18 16:31:32,644 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:32,644 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 16 letters. Loop has 6 letters. [2018-11-18 16:31:32,644 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:31:32,644 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 66 transitions. [2018-11-18 16:31:32,644 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 16:31:32,644 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 0 states and 0 transitions. [2018-11-18 16:31:32,644 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 16:31:32,644 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 16:31:32,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 16:31:32,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:31:32,645 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:31:32,645 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:31:32,645 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:31:32,645 INFO L442 BuchiCegarLoop]: ======== Iteration 11============ [2018-11-18 16:31:32,645 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 16:31:32,645 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 16:31:32,645 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 16:31:32,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 04:31:32 BoogieIcfgContainer [2018-11-18 16:31:32,649 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 16:31:32,649 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:31:32,649 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:31:32,649 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:31:32,650 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:30:59" (3/4) ... [2018-11-18 16:31:32,653 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 16:31:32,653 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:31:32,653 INFO L168 Benchmark]: Toolchain (without parser) took 33695.62 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 308.3 MB). Free memory was 952.7 MB in the beginning and 1.2 GB in the end (delta: -256.1 MB). Peak memory consumption was 52.1 MB. Max. memory is 11.5 GB. [2018-11-18 16:31:32,654 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:31:32,654 INFO L168 Benchmark]: CACSL2BoogieTranslator took 140.46 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:31:32,655 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.72 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 939.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:31:32,655 INFO L168 Benchmark]: Boogie Preprocessor took 12.00 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:31:32,655 INFO L168 Benchmark]: RCFGBuilder took 195.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -181.0 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-11-18 16:31:32,655 INFO L168 Benchmark]: BuchiAutomizer took 33323.01 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 170.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -91.9 MB). Peak memory consumption was 79.0 MB. Max. memory is 11.5 GB. [2018-11-18 16:31:32,656 INFO L168 Benchmark]: Witness Printer took 3.74 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:31:32,658 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 140.46 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 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 18.72 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 939.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.00 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 195.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -181.0 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 33323.01 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 170.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -91.9 MB). Peak memory consumption was 79.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.74 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (0 trivial, 8 deterministic, 2 nondeterministic). One deterministic module has affine ranking function -1 * z + k and consists of 5 locations. One deterministic module has affine ranking function -1 * z + k and consists of 4 locations. One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function x + -1 * d and consists of 5 locations. One deterministic module has affine ranking function x + -1 * d and consists of 5 locations. One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function y and consists of 5 locations. One nondeterministic module has affine ranking function y and consists of 5 locations. One nondeterministic module has affine ranking function y and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 33.2s and 11 iterations. TraceHistogramMax:3. Analysis of lassos took 32.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 26 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 71 states and ocurred in iteration 8. Nontrivial modules had stage [8, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 259 SDtfs, 321 SDslu, 109 SDs, 0 SdLazy, 136 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso10 LassoPreprocessingBenchmarks: Lassos: inital34 mio100 ax100 hnf93 lsp56 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq170 hnf91 smp100 dnf100 smp100 tf101 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 85ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 58 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 28.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...