./Ultimate.py --spec ../../sv-benchmarks/c/properties/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 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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_bc122370-94db-4951-9179-6d455dca2900/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 0.1.23-0cd3be1 [2018-11-28 11:12:56,233 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:12:56,234 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:12:56,242 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:12:56,242 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:12:56,242 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:12:56,243 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:12:56,244 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:12:56,245 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:12:56,246 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:12:56,247 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:12:56,247 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:12:56,248 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:12:56,248 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:12:56,249 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:12:56,250 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:12:56,250 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:12:56,252 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:12:56,253 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:12:56,254 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:12:56,255 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:12:56,256 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:12:56,258 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:12:56,258 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:12:56,258 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:12:56,259 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:12:56,260 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:12:56,261 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:12:56,261 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:12:56,262 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:12:56,262 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:12:56,263 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:12:56,263 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:12:56,263 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:12:56,264 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:12:56,264 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:12:56,264 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 11:12:56,274 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:12:56,274 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:12:56,275 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:12:56,275 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:12:56,276 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:12:56,276 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 11:12:56,276 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 11:12:56,276 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 11:12:56,276 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 11:12:56,276 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 11:12:56,276 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 11:12:56,276 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:12:56,276 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 11:12:56,276 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 11:12:56,277 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:12:56,277 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 11:12:56,277 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 11:12:56,277 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 11:12:56,277 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:12:56,277 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 11:12:56,277 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:12:56,277 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 11:12:56,278 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:12:56,278 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:12:56,278 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 11:12:56,278 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:12:56,278 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 11:12:56,278 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 11:12:56,279 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 11:12:56,279 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:12:56,299 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:12:56,307 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:12:56,309 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:12:56,310 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:12:56,310 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:12:56,310 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c [2018-11-28 11:12:56,347 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/bin-2019/uautomizer/data/ffa899f33/e982287ccc8c46109006b531d761a066/FLAG35856cb5e [2018-11-28 11:12:56,734 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:12:56,735 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c [2018-11-28 11:12:56,739 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/bin-2019/uautomizer/data/ffa899f33/e982287ccc8c46109006b531d761a066/FLAG35856cb5e [2018-11-28 11:12:56,747 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/bin-2019/uautomizer/data/ffa899f33/e982287ccc8c46109006b531d761a066 [2018-11-28 11:12:56,748 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:12:56,749 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:12:56,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:12:56,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:12:56,752 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:12:56,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:12:56" (1/1) ... [2018-11-28 11:12:56,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11351d60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:56, skipping insertion in model container [2018-11-28 11:12:56,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:12:56" (1/1) ... [2018-11-28 11:12:56,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:12:56,768 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:12:56,863 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:12:56,866 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:12:56,876 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:12:56,884 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:12:56,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:56 WrapperNode [2018-11-28 11:12:56,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:12:56,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:12:56,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:12:56,885 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:12:56,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:56" (1/1) ... [2018-11-28 11:12:56,893 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:56" (1/1) ... [2018-11-28 11:12:56,906 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:12:56,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:12:56,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:12:56,907 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:12:56,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:56" (1/1) ... [2018-11-28 11:12:56,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:56" (1/1) ... [2018-11-28 11:12:56,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:56" (1/1) ... [2018-11-28 11:12:56,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:56" (1/1) ... [2018-11-28 11:12:56,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:56" (1/1) ... [2018-11-28 11:12:56,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:56" (1/1) ... [2018-11-28 11:12:56,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:56" (1/1) ... [2018-11-28 11:12:56,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:12:56,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:12:56,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:12:56,920 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:12:56,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:12:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:12:57,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:12:57,128 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:12:57,128 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-11-28 11:12:57,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:12:57 BoogieIcfgContainer [2018-11-28 11:12:57,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:12:57,129 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 11:12:57,129 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 11:12:57,133 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 11:12:57,133 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 11:12:57,133 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:12:56" (1/3) ... [2018-11-28 11:12:57,134 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@20a64b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:12:57, skipping insertion in model container [2018-11-28 11:12:57,135 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 11:12:57,135 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:56" (2/3) ... [2018-11-28 11:12:57,135 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@20a64b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:12:57, skipping insertion in model container [2018-11-28 11:12:57,135 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 11:12:57,135 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:12:57" (3/3) ... [2018-11-28 11:12:57,137 INFO L375 chiAutomizerObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c [2018-11-28 11:12:57,185 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:12:57,186 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 11:12:57,186 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 11:12:57,186 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 11:12:57,186 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:12:57,186 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:12:57,186 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 11:12:57,187 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:12:57,187 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 11:12:57,199 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-11-28 11:12:57,218 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2018-11-28 11:12:57,218 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:12:57,219 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:12:57,224 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 11:12:57,224 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 11:12:57,224 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 11:12:57,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-11-28 11:12:57,226 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2018-11-28 11:12:57,226 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:12:57,226 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:12:57,226 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 11:12:57,226 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 11:12:57,233 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet5; 10#L41true assume 0 != main_#t~nondet5;havoc main_#t~nondet5;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 6#L18true assume !(f_~k~0 > 1073741823); 13#L23-1true [2018-11-28 11:12:57,233 INFO L796 eck$LassoCheckResult]: Loop: 13#L23-1true assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 13#L23-1true [2018-11-28 11:12:57,238 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:12:57,238 INFO L82 PathProgramCache]: Analyzing trace with hash 30885, now seen corresponding path program 1 times [2018-11-28 11:12:57,240 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:12:57,240 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:12:57,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:12:57,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:12:57,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:12:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:12:57,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:12:57,316 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:12:57,316 INFO L82 PathProgramCache]: Analyzing trace with hash 49, now seen corresponding path program 1 times [2018-11-28 11:12:57,316 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:12:57,316 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:12:57,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:12:57,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:12:57,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:12:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:12:57,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:12:57,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:12:57,323 INFO L82 PathProgramCache]: Analyzing trace with hash 957453, now seen corresponding path program 1 times [2018-11-28 11:12:57,323 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:12:57,323 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:12:57,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:12:57,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:12:57,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:12:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:12:57,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:12:57,403 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:12:57,404 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:12:57,404 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:12:57,404 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:12:57,404 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:12:57,404 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:12:57,404 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:12:57,404 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:12:57,404 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration1_Lasso [2018-11-28 11:12:57,405 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:12:57,405 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:12:57,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:12:57,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:12:57,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:12:57,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:12:57,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:12:57,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:12:57,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:12:57,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:12:57,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:12:57,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:12:57,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:12:57,583 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:12:57,583 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:12:57,587 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:12:57,587 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:12:57,591 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:12:57,591 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:12:57,607 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:12:57,607 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:12:57,609 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:12:57,610 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:12:57,625 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:12:57,625 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:12:57,627 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:12:57,627 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:12:57,642 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:12:57,642 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:12:57,644 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:12:57,645 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:12:57,659 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:12:57,659 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:12:57,661 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:12:57,661 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:12:57,676 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:12:57,677 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:12:57,679 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:12:57,679 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:12:57,701 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:12:57,702 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:12:57,729 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:12:57,730 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:11,717 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-28 11:13:11,723 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:13:11,723 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:13:11,723 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:13:11,723 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:13:11,723 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:13:11,723 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:13:11,724 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:13:11,724 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:13:11,724 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration1_Lasso [2018-11-28 11:13:11,724 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:13:11,724 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:13:11,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:11,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:11,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:11,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:11,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:11,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:11,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:11,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:11,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:11,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:11,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:11,839 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:13:11,843 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:13:11,844 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 [2018-11-28 11:13:11,845 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:11,846 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:11,846 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:11,846 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:11,846 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:11,847 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:11,848 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:11,850 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:11,850 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 [2018-11-28 11:13:11,851 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:11,851 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:11,851 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:11,852 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:11,852 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:11,852 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:11,852 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:11,853 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:11,853 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 [2018-11-28 11:13:11,854 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:11,854 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:11,854 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:11,854 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:11,854 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:11,855 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:11,855 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:11,855 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:11,856 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 [2018-11-28 11:13:11,856 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:11,856 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:11,857 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:11,857 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:11,857 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:11,857 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:11,857 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:11,858 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:11,858 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 [2018-11-28 11:13:11,859 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:11,859 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:11,859 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:11,859 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:11,859 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:11,860 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:11,860 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:11,861 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:11,861 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 [2018-11-28 11:13:11,861 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:11,862 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:11,862 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:11,862 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:11,866 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:13:11,866 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:13:11,910 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:13:11,946 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2018-11-28 11:13:11,946 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-28 11:13:11,948 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:13:11,950 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 11:13:11,950 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:13:11,951 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] [2018-11-28 11:13:11,957 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 11:13:12,002 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:12,010 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:12,017 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:12,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:13:12,028 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 [2018-11-28 11:13:12,029 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2018-11-28 11:13:12,086 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 49 states and 76 transitions. Complement of second has 7 states. [2018-11-28 11:13:12,087 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 [2018-11-28 11:13:12,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 11:13:12,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 50 transitions. [2018-11-28 11:13:12,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 50 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-28 11:13:12,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:12,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 50 transitions. Stem has 4 letters. Loop has 1 letters. [2018-11-28 11:13:12,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:12,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 50 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-28 11:13:12,092 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:12,092 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 76 transitions. [2018-11-28 11:13:12,095 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 11 [2018-11-28 11:13:12,098 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 20 states and 28 transitions. [2018-11-28 11:13:12,099 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2018-11-28 11:13:12,099 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2018-11-28 11:13:12,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 28 transitions. [2018-11-28 11:13:12,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 11:13:12,100 INFO L705 BuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2018-11-28 11:13:12,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 28 transitions. [2018-11-28 11:13:12,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2018-11-28 11:13:12,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-28 11:13:12,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 19 transitions. [2018-11-28 11:13:12,119 INFO L728 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2018-11-28 11:13:12,119 INFO L608 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2018-11-28 11:13:12,119 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 11:13:12,119 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 19 transitions. [2018-11-28 11:13:12,120 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2018-11-28 11:13:12,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:13:12,120 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:13:12,120 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 11:13:12,120 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 11:13:12,121 INFO L794 eck$LassoCheckResult]: Stem: 114#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 115#L41 assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 120#L18-1 assume !(f_~k~0 > 1073741823); 121#L23-3 [2018-11-28 11:13:12,121 INFO L796 eck$LassoCheckResult]: Loop: 121#L23-3 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 121#L23-3 [2018-11-28 11:13:12,121 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:12,121 INFO L82 PathProgramCache]: Analyzing trace with hash 32101, now seen corresponding path program 1 times [2018-11-28 11:13:12,121 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:12,121 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:12,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:12,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:13:12,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:12,128 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:12,129 INFO L82 PathProgramCache]: Analyzing trace with hash 87, now seen corresponding path program 1 times [2018-11-28 11:13:12,129 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:12,129 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:12,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:12,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:13:12,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:12,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:12,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:12,133 INFO L82 PathProgramCache]: Analyzing trace with hash 995187, now seen corresponding path program 1 times [2018-11-28 11:13:12,133 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:12,133 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:12,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:12,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:13:12,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:12,180 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:13:12,180 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:13:12,180 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:13:12,181 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:13:12,181 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:13:12,181 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:13:12,181 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:13:12,181 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:13:12,181 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration2_Lasso [2018-11-28 11:13:12,181 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:13:12,181 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:13:12,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:12,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:12,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:12,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:12,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:12,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:12,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:12,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:12,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:12,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:12,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:12,282 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:13:12,282 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:12,292 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:12,292 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:12,296 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:12,296 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:12,320 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:12,321 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:12,323 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:12,323 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:12,341 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:12,341 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:12,343 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:12,343 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:12,360 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:12,360 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:12,363 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:12,363 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:12,380 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:12,380 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:12,383 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:12,383 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:12,400 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:12,400 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:12,403 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:12,404 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:12,420 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:12,420 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:12,424 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:12,424 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:12,441 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:12,441 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:12,443 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:12,443 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:12,460 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:12,460 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:12,462 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:12,463 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:12,480 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:12,480 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:12,482 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:12,482 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:12,504 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:12,504 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:12,522 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:13:12,522 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:26,382 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-28 11:13:26,389 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:13:26,389 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:13:26,389 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:13:26,389 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:13:26,389 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:13:26,389 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:13:26,389 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:13:26,389 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:13:26,389 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration2_Lasso [2018-11-28 11:13:26,390 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:13:26,390 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:13:26,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,469 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:13:26,470 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:13:26,471 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 [2018-11-28 11:13:26,471 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:26,471 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:26,471 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:26,472 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:26,472 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:26,472 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:26,472 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:26,472 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:26,473 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 [2018-11-28 11:13:26,473 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:26,473 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:26,473 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:26,474 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:26,474 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:26,474 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:26,474 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:26,475 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:26,479 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 [2018-11-28 11:13:26,480 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:26,480 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:26,480 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:26,480 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:26,482 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:13:26,482 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:13:26,500 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:13:26,508 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 11:13:26,508 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 11:13:26,509 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:13:26,510 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 11:13:26,510 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:13:26,510 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] [2018-11-28 11:13:26,515 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 11:13:26,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:26,555 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:26,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:26,559 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:26,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:13:26,559 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 [2018-11-28 11:13:26,559 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 19 transitions. cyclomatic complexity: 10 Second operand 3 states. [2018-11-28 11:13:26,604 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 19 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 24 states and 35 transitions. Complement of second has 6 states. [2018-11-28 11:13:26,605 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 [2018-11-28 11:13:26,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 11:13:26,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-11-28 11:13:26,606 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-28 11:13:26,606 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:26,606 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 4 letters. Loop has 1 letters. [2018-11-28 11:13:26,606 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:26,606 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-28 11:13:26,606 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:26,606 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 35 transitions. [2018-11-28 11:13:26,607 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2018-11-28 11:13:26,607 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 21 states and 30 transitions. [2018-11-28 11:13:26,607 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2018-11-28 11:13:26,607 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2018-11-28 11:13:26,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 30 transitions. [2018-11-28 11:13:26,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 11:13:26,608 INFO L705 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2018-11-28 11:13:26,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 30 transitions. [2018-11-28 11:13:26,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 14. [2018-11-28 11:13:26,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-28 11:13:26,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 21 transitions. [2018-11-28 11:13:26,609 INFO L728 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2018-11-28 11:13:26,609 INFO L608 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2018-11-28 11:13:26,609 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 11:13:26,609 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 21 transitions. [2018-11-28 11:13:26,610 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 11:13:26,610 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:13:26,610 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:13:26,611 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-28 11:13:26,611 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 11:13:26,611 INFO L794 eck$LassoCheckResult]: Stem: 194#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 195#L41 assume 0 != main_#t~nondet5;havoc main_#t~nondet5;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 202#L18 assume !(f_~k~0 > 1073741823); 198#L23-1 assume !(f_~z~0 < f_~k~0); 196#L29-2 [2018-11-28 11:13:26,611 INFO L796 eck$LassoCheckResult]: Loop: 196#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 197#L29 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 196#L29-2 [2018-11-28 11:13:26,612 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:26,612 INFO L82 PathProgramCache]: Analyzing trace with hash 957451, now seen corresponding path program 1 times [2018-11-28 11:13:26,612 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:26,612 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:26,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:26,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:13:26,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:26,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:26,616 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:26,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1896, now seen corresponding path program 1 times [2018-11-28 11:13:26,616 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:26,616 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:26,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:26,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:13:26,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:26,620 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:26,620 INFO L82 PathProgramCache]: Analyzing trace with hash 920111346, now seen corresponding path program 1 times [2018-11-28 11:13:26,620 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:26,620 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:26,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:26,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:13:26,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:26,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:26,655 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:13:26,655 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:13:26,655 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:13:26,655 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:13:26,655 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:13:26,655 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:13:26,656 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:13:26,656 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:13:26,656 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration3_Lasso [2018-11-28 11:13:26,656 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:13:26,656 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:13:26,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,734 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:13:26,734 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:26,736 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:26,736 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:26,738 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:26,738 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:26,753 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:26,753 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:26,755 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:26,755 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:26,770 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:26,770 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:26,773 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:26,773 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:26,789 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:26,789 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:26,791 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:26,791 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:26,806 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:26,806 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:26,808 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:26,808 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:26,836 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:26,836 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:26,840 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:26,840 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:26,856 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:26,856 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:26,873 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:13:26,873 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:26,945 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:13:26,947 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:13:26,947 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:13:26,947 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:13:26,947 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:13:26,947 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:13:26,947 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:13:26,947 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:13:26,947 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:13:26,947 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration3_Lasso [2018-11-28 11:13:26,947 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:13:26,947 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:13:26,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:26,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,002 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:13:27,002 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:13:27,002 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 [2018-11-28 11:13:27,003 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:27,003 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:27,003 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:27,003 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:27,003 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:27,004 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:27,004 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:27,004 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:27,005 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 [2018-11-28 11:13:27,005 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:27,005 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:27,005 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:27,005 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:27,006 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:13:27,006 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:13:27,010 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:27,010 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 [2018-11-28 11:13:27,011 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:27,011 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:27,011 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:27,011 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:27,011 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:27,011 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:27,011 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:27,012 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:27,012 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 [2018-11-28 11:13:27,012 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:27,013 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:27,013 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:27,013 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:27,014 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:13:27,014 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:13:27,023 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:13:27,028 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 11:13:27,029 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 11:13:27,029 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:13:27,030 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 11:13:27,030 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:13:27,030 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] [2018-11-28 11:13:27,036 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 11:13:27,059 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:27,061 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:27,072 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:27,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:13:27,078 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 [2018-11-28 11:13:27,078 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 21 transitions. cyclomatic complexity: 11 Second operand 4 states. [2018-11-28 11:13:27,095 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 21 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 20 states and 29 transitions. Complement of second has 6 states. [2018-11-28 11:13:27,095 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 [2018-11-28 11:13:27,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 11:13:27,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2018-11-28 11:13:27,096 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-28 11:13:27,096 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:27,096 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-28 11:13:27,096 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:27,096 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-28 11:13:27,096 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:27,096 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 29 transitions. [2018-11-28 11:13:27,097 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 11:13:27,097 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 19 states and 28 transitions. [2018-11-28 11:13:27,097 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2018-11-28 11:13:27,097 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2018-11-28 11:13:27,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 28 transitions. [2018-11-28 11:13:27,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:13:27,098 INFO L705 BuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2018-11-28 11:13:27,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 28 transitions. [2018-11-28 11:13:27,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2018-11-28 11:13:27,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 11:13:27,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 27 transitions. [2018-11-28 11:13:27,100 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2018-11-28 11:13:27,100 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2018-11-28 11:13:27,100 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 11:13:27,100 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 27 transitions. [2018-11-28 11:13:27,100 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 11:13:27,100 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:13:27,100 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:13:27,101 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-28 11:13:27,101 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 11:13:27,101 INFO L794 eck$LassoCheckResult]: Stem: 278#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 279#L41 assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 288#L18-1 assume !(f_~k~0 > 1073741823); 289#L23-3 assume !(f_~z~0 < f_~k~0); 277#L29-5 [2018-11-28 11:13:27,101 INFO L796 eck$LassoCheckResult]: Loop: 277#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 275#L29-3 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 277#L29-5 [2018-11-28 11:13:27,101 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:27,101 INFO L82 PathProgramCache]: Analyzing trace with hash 995185, now seen corresponding path program 1 times [2018-11-28 11:13:27,101 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:27,101 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:27,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:27,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:13:27,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:27,108 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:27,108 INFO L82 PathProgramCache]: Analyzing trace with hash 3112, now seen corresponding path program 1 times [2018-11-28 11:13:27,108 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:27,108 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:27,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:27,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:13:27,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:27,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:27,112 INFO L82 PathProgramCache]: Analyzing trace with hash 956374936, now seen corresponding path program 1 times [2018-11-28 11:13:27,112 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:27,112 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:27,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:27,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:13:27,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:27,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:27,149 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:13:27,149 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:13:27,149 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:13:27,149 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:13:27,149 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:13:27,149 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:13:27,149 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:13:27,149 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:13:27,149 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration4_Lasso [2018-11-28 11:13:27,149 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:13:27,149 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:13:27,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,210 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:13:27,210 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:27,213 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:27,213 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:27,216 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:27,216 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:27,230 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:27,230 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:27,232 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:27,232 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:27,246 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:27,247 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:27,251 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:27,251 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:27,266 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:27,266 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:27,268 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:27,268 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:27,282 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:27,283 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:27,285 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:27,285 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:27,300 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:27,300 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:27,317 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:13:27,317 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:27,369 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:13:27,370 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:13:27,370 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:13:27,370 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:13:27,370 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:13:27,370 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:13:27,370 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:13:27,370 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:13:27,370 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:13:27,370 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration4_Lasso [2018-11-28 11:13:27,370 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:13:27,371 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:13:27,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,416 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:13:27,416 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:13:27,416 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:13:27,417 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:27,417 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:27,417 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:27,417 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:27,418 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:13:27,418 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:13:27,423 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:27,424 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 [2018-11-28 11:13:27,424 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:27,424 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:27,424 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:27,424 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:27,424 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:27,425 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:27,425 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:27,425 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:27,425 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 11:13:27,426 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:27,426 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:27,426 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:27,426 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:27,426 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:27,426 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:27,426 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:27,427 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:27,427 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 [2018-11-28 11:13:27,427 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:27,428 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:27,428 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:27,428 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:27,429 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:13:27,429 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:13:27,436 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:13:27,439 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 11:13:27,439 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 11:13:27,440 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:13:27,441 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 11:13:27,441 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:13:27,441 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] [2018-11-28 11:13:27,447 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 11:13:27,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:27,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:27,472 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:27,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:27,474 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:27,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:13:27,481 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 [2018-11-28 11:13:27,481 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 14 Second operand 4 states. [2018-11-28 11:13:27,502 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 24 states and 35 transitions. Complement of second has 6 states. [2018-11-28 11:13:27,502 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 [2018-11-28 11:13:27,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 11:13:27,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2018-11-28 11:13:27,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-28 11:13:27,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:27,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-28 11:13:27,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:27,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-28 11:13:27,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:27,503 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 35 transitions. [2018-11-28 11:13:27,504 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 11:13:27,504 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 23 states and 34 transitions. [2018-11-28 11:13:27,504 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2018-11-28 11:13:27,504 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2018-11-28 11:13:27,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 34 transitions. [2018-11-28 11:13:27,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:13:27,504 INFO L705 BuchiCegarLoop]: Abstraction has 23 states and 34 transitions. [2018-11-28 11:13:27,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 34 transitions. [2018-11-28 11:13:27,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-11-28 11:13:27,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-28 11:13:27,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2018-11-28 11:13:27,506 INFO L728 BuchiCegarLoop]: Abstraction has 22 states and 33 transitions. [2018-11-28 11:13:27,506 INFO L608 BuchiCegarLoop]: Abstraction has 22 states and 33 transitions. [2018-11-28 11:13:27,506 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-28 11:13:27,506 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 33 transitions. [2018-11-28 11:13:27,507 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 11:13:27,507 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:13:27,507 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:13:27,507 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 11:13:27,507 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 11:13:27,507 INFO L794 eck$LassoCheckResult]: Stem: 371#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 372#L41 assume 0 != main_#t~nondet5;havoc main_#t~nondet5;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 383#L18 assume !(f_~k~0 > 1073741823); 378#L23-1 assume !(f_~z~0 < f_~k~0); 379#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 377#L29 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 385#L30 [2018-11-28 11:13:27,507 INFO L796 eck$LassoCheckResult]: Loop: 385#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; 373#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 374#L29 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 385#L30 [2018-11-28 11:13:27,508 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:27,508 INFO L82 PathProgramCache]: Analyzing trace with hash 920111342, now seen corresponding path program 1 times [2018-11-28 11:13:27,508 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:27,508 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:27,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:27,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:13:27,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:27,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:27,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:27,512 INFO L82 PathProgramCache]: Analyzing trace with hash 63396, now seen corresponding path program 1 times [2018-11-28 11:13:27,513 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:27,513 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:27,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:27,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:13:27,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:27,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:27,516 INFO L82 PathProgramCache]: Analyzing trace with hash 555740055, now seen corresponding path program 1 times [2018-11-28 11:13:27,517 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:27,517 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:27,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:27,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:13:27,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:27,533 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:13:27,533 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:13:27,534 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:13:27,534 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:13:27,534 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:13:27,534 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:13:27,534 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:13:27,534 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:13:27,534 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-28 11:13:27,534 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:13:27,534 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:13:27,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,572 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:13:27,572 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:27,574 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:27,574 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:27,590 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:13:27,590 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:27,598 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:27,598 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:27,613 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:27,613 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:27,616 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:27,616 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:27,631 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:27,631 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:27,633 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:27,634 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:27,648 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:27,648 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:27,663 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:27,663 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: [] [2018-11-28 11:13:27,689 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:13:27,689 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:13:27,689 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:13:27,689 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:13:27,689 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:13:27,689 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:13:27,689 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:13:27,689 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:13:27,689 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration5_Lasso [2018-11-28 11:13:27,690 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:13:27,690 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:13:27,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:27,782 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:13:27,782 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:27,785 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:27,785 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:27,789 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:27,789 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:27,808 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:27,808 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:27,810 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:27,810 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:27,825 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:27,825 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:27,827 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:27,827 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:27,842 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:27,842 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:27,860 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:13:27,860 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:28,002 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:13:28,003 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:13:28,003 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:13:28,003 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:13:28,003 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:13:28,003 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:13:28,003 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:13:28,004 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:13:28,004 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:13:28,004 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration5_Lasso [2018-11-28 11:13:28,004 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:13:28,004 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:13:28,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,068 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:13:28,068 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:13:28,069 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 [2018-11-28 11:13:28,069 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:28,069 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:28,069 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:28,069 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:28,070 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:13:28,070 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:13:28,074 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:28,075 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 [2018-11-28 11:13:28,075 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:28,075 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:28,075 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:28,075 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-28 11:13:28,075 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:28,076 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-28 11:13:28,076 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:28,077 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:28,077 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 [2018-11-28 11:13:28,078 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:28,078 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:28,078 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:28,078 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:28,079 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:13:28,079 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:13:28,086 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:13:28,090 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 11:13:28,090 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 11:13:28,090 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:13:28,091 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 11:13:28,091 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:13:28,091 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] [2018-11-28 11:13:28,103 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 11:13:28,124 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:28,131 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:28,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:28,137 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:28,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:13:28,165 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 [2018-11-28 11:13:28,165 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 33 transitions. cyclomatic complexity: 17 Second operand 5 states. [2018-11-28 11:13:28,201 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 33 transitions. cyclomatic complexity: 17. Second operand 5 states. Result 32 states and 46 transitions. Complement of second has 7 states. [2018-11-28 11:13:28,201 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 [2018-11-28 11:13:28,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-28 11:13:28,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2018-11-28 11:13:28,202 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-28 11:13:28,202 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:28,202 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-28 11:13:28,202 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:28,202 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-28 11:13:28,202 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:28,203 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 46 transitions. [2018-11-28 11:13:28,203 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-11-28 11:13:28,204 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 28 states and 41 transitions. [2018-11-28 11:13:28,204 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2018-11-28 11:13:28,204 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2018-11-28 11:13:28,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 41 transitions. [2018-11-28 11:13:28,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:13:28,204 INFO L705 BuchiCegarLoop]: Abstraction has 28 states and 41 transitions. [2018-11-28 11:13:28,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 41 transitions. [2018-11-28 11:13:28,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2018-11-28 11:13:28,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-28 11:13:28,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 40 transitions. [2018-11-28 11:13:28,206 INFO L728 BuchiCegarLoop]: Abstraction has 27 states and 40 transitions. [2018-11-28 11:13:28,206 INFO L608 BuchiCegarLoop]: Abstraction has 27 states and 40 transitions. [2018-11-28 11:13:28,206 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-28 11:13:28,206 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 40 transitions. [2018-11-28 11:13:28,206 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-11-28 11:13:28,206 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:13:28,206 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:13:28,207 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 11:13:28,207 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 11:13:28,207 INFO L794 eck$LassoCheckResult]: Stem: 487#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 488#L41 assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 496#L18-1 assume !(f_~k~0 > 1073741823); 497#L23-3 assume !(f_~z~0 < f_~k~0); 505#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 483#L29-3 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 484#L30-1 [2018-11-28 11:13:28,207 INFO L796 eck$LassoCheckResult]: Loop: 484#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; 501#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 502#L29-3 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 484#L30-1 [2018-11-28 11:13:28,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:28,207 INFO L82 PathProgramCache]: Analyzing trace with hash 956374932, now seen corresponding path program 1 times [2018-11-28 11:13:28,207 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:28,207 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:28,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:28,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:13:28,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:28,213 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:28,213 INFO L82 PathProgramCache]: Analyzing trace with hash 101130, now seen corresponding path program 1 times [2018-11-28 11:13:28,213 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:28,213 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:28,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:28,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:13:28,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:28,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:28,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:28,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:28,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1447371113, now seen corresponding path program 1 times [2018-11-28 11:13:28,218 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:28,218 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:28,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:28,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:13:28,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:28,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:28,257 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:13:28,257 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:13:28,257 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:13:28,257 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:13:28,257 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:13:28,257 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:13:28,257 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:13:28,257 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:13:28,257 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration6_Loop [2018-11-28 11:13:28,258 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:13:28,258 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:13:28,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,315 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:13:28,316 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:28,320 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:28,321 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:28,325 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:28,325 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:28,353 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:28,353 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:28,381 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:13:28,381 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:28,389 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:28,389 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:28,404 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:28,404 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:28,419 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:28,419 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:28,421 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:28,421 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:28,424 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:28,424 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: [] [2018-11-28 11:13:28,461 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:13:28,461 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:13:28,461 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:13:28,462 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:13:28,462 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:13:28,462 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:13:28,462 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:13:28,462 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:13:28,462 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration6_Lasso [2018-11-28 11:13:28,462 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:13:28,462 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:13:28,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,532 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:13:28,532 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:28,536 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:28,536 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:28,554 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:13:28,554 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:28,568 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:28,568 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:28,593 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:28,593 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:28,596 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:28,596 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:28,610 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:28,611 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:28,613 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:28,613 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:28,627 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:28,628 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:28,629 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:28,629 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:28,644 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:28,644 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:28,646 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:28,646 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:28,661 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:28,661 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:28,662 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:28,662 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:28,677 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:28,677 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:28,679 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:28,679 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:28,708 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:28,708 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:28,709 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:28,710 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:28,724 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:28,724 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:28,740 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:13:28,740 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:28,861 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:13:28,863 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:13:28,863 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:13:28,863 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:13:28,863 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:13:28,863 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:13:28,863 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:13:28,863 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:13:28,863 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:13:28,863 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration6_Lasso [2018-11-28 11:13:28,863 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:13:28,863 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:13:28,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:28,928 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:13:28,928 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:13:28,928 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 [2018-11-28 11:13:28,929 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:28,929 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:28,929 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:28,929 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:28,930 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:13:28,930 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:13:28,937 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:13:28,940 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 11:13:28,940 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 11:13:28,940 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:13:28,941 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 11:13:28,941 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:13:28,942 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] [2018-11-28 11:13:28,955 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 11:13:28,972 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:28,975 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:28,978 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:29,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:13:29,001 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 [2018-11-28 11:13:29,001 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 40 transitions. cyclomatic complexity: 20 Second operand 5 states. [2018-11-28 11:13:29,040 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 40 transitions. cyclomatic complexity: 20. Second operand 5 states. Result 37 states and 53 transitions. Complement of second has 7 states. [2018-11-28 11:13:29,040 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 [2018-11-28 11:13:29,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-28 11:13:29,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2018-11-28 11:13:29,041 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-28 11:13:29,041 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:29,041 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-28 11:13:29,041 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:29,042 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-28 11:13:29,042 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:29,042 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 53 transitions. [2018-11-28 11:13:29,043 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 11:13:29,043 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 33 states and 48 transitions. [2018-11-28 11:13:29,043 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2018-11-28 11:13:29,043 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2018-11-28 11:13:29,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 48 transitions. [2018-11-28 11:13:29,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:13:29,044 INFO L705 BuchiCegarLoop]: Abstraction has 33 states and 48 transitions. [2018-11-28 11:13:29,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 48 transitions. [2018-11-28 11:13:29,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2018-11-28 11:13:29,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-28 11:13:29,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 47 transitions. [2018-11-28 11:13:29,045 INFO L728 BuchiCegarLoop]: Abstraction has 32 states and 47 transitions. [2018-11-28 11:13:29,045 INFO L608 BuchiCegarLoop]: Abstraction has 32 states and 47 transitions. [2018-11-28 11:13:29,045 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-28 11:13:29,046 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 47 transitions. [2018-11-28 11:13:29,046 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 11:13:29,046 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:13:29,046 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:13:29,046 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:13:29,046 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 11:13:29,047 INFO L794 eck$LassoCheckResult]: Stem: 614#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 615#L41 assume 0 != main_#t~nondet5;havoc main_#t~nondet5;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 625#L18 assume !(f_~k~0 > 1073741823); 620#L23-1 assume !(f_~z~0 < f_~k~0); 621#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 636#L29 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 631#L30 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 632#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 638#L29 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 616#L29-2 [2018-11-28 11:13:29,047 INFO L796 eck$LassoCheckResult]: Loop: 616#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 617#L29 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 616#L29-2 [2018-11-28 11:13:29,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:29,047 INFO L82 PathProgramCache]: Analyzing trace with hash 555740059, now seen corresponding path program 1 times [2018-11-28 11:13:29,047 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:29,047 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:29,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:29,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:13:29,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:29,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:29,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:29,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1896, now seen corresponding path program 2 times [2018-11-28 11:13:29,053 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:29,053 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:29,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:29,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:13:29,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:29,056 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:29,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1490252930, now seen corresponding path program 2 times [2018-11-28 11:13:29,056 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:29,056 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:29,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:29,057 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:13:29,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:29,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:29,140 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:13:29,140 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:13:29,140 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:13:29,140 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:13:29,140 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:13:29,140 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:13:29,140 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:13:29,140 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:13:29,140 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration7_Lasso [2018-11-28 11:13:29,140 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:13:29,140 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:13:29,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,204 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:13:29,204 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:13:29,206 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:29,206 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:29,220 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:29,220 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:29,223 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:29,223 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:29,242 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:13:29,242 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:29,299 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:13:29,300 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:13:29,300 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:13:29,300 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:13:29,300 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:13:29,300 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:13:29,300 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:13:29,300 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:13:29,300 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:13:29,300 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration7_Lasso [2018-11-28 11:13:29,300 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:13:29,301 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:13:29,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,349 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:13:29,349 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:13:29,349 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 [2018-11-28 11:13:29,349 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:29,349 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:29,349 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:29,350 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:29,350 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:13:29,350 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:13:29,351 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:29,352 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 [2018-11-28 11:13:29,352 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:29,352 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:29,352 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:29,352 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:29,353 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:13:29,353 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:13:29,354 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:29,355 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 [2018-11-28 11:13:29,355 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:29,355 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:29,355 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:29,355 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:29,355 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:29,356 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:29,356 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:29,356 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:29,356 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 [2018-11-28 11:13:29,357 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:29,357 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:29,357 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:29,357 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:29,357 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:29,357 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:29,357 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:29,357 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:29,357 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 [2018-11-28 11:13:29,358 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:29,358 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:29,358 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:29,358 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:29,358 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:29,358 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:29,358 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:29,358 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:29,359 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 [2018-11-28 11:13:29,359 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:29,359 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:29,359 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:29,359 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:29,359 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:29,359 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:29,359 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:29,360 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:29,360 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 [2018-11-28 11:13:29,360 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:29,360 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:29,360 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:29,360 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:29,361 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:13:29,361 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:13:29,362 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:29,362 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 [2018-11-28 11:13:29,362 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:29,362 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:29,362 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:29,363 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:29,363 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:29,363 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:29,363 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:29,363 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:29,364 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 [2018-11-28 11:13:29,364 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:29,364 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:29,364 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:29,364 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:29,364 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:29,364 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:29,364 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:29,365 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:29,365 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 [2018-11-28 11:13:29,365 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:29,365 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:29,366 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:29,366 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:29,366 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:13:29,367 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:13:29,373 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:13:29,380 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-11-28 11:13:29,380 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-11-28 11:13:29,380 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:13:29,381 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 11:13:29,381 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:13:29,381 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] [2018-11-28 11:13:29,392 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 11:13:29,408 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:29,411 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:29,414 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:29,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:13:29,420 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 [2018-11-28 11:13:29,420 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 47 transitions. cyclomatic complexity: 23 Second operand 4 states. [2018-11-28 11:13:29,439 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 47 transitions. cyclomatic complexity: 23. Second operand 4 states. Result 50 states and 69 transitions. Complement of second has 6 states. [2018-11-28 11:13:29,439 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 [2018-11-28 11:13:29,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 11:13:29,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-11-28 11:13:29,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-28 11:13:29,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:29,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-28 11:13:29,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:29,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-28 11:13:29,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:29,440 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 69 transitions. [2018-11-28 11:13:29,441 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 11:13:29,441 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 42 states and 59 transitions. [2018-11-28 11:13:29,441 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2018-11-28 11:13:29,441 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2018-11-28 11:13:29,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 59 transitions. [2018-11-28 11:13:29,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:13:29,442 INFO L705 BuchiCegarLoop]: Abstraction has 42 states and 59 transitions. [2018-11-28 11:13:29,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 59 transitions. [2018-11-28 11:13:29,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2018-11-28 11:13:29,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-28 11:13:29,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 57 transitions. [2018-11-28 11:13:29,443 INFO L728 BuchiCegarLoop]: Abstraction has 40 states and 57 transitions. [2018-11-28 11:13:29,443 INFO L608 BuchiCegarLoop]: Abstraction has 40 states and 57 transitions. [2018-11-28 11:13:29,443 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-11-28 11:13:29,443 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 57 transitions. [2018-11-28 11:13:29,444 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 11:13:29,444 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:13:29,444 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:13:29,444 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:13:29,444 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 11:13:29,444 INFO L794 eck$LassoCheckResult]: Stem: 760#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 761#L41 assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 769#L18-1 assume !(f_~k~0 > 1073741823); 770#L23-3 assume !(f_~z~0 < f_~k~0); 784#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 786#L29-3 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 776#L30-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 777#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 787#L29-3 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 757#L29-5 [2018-11-28 11:13:29,444 INFO L796 eck$LassoCheckResult]: Loop: 757#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 756#L29-3 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 757#L29-5 [2018-11-28 11:13:29,444 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:29,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1447371109, now seen corresponding path program 1 times [2018-11-28 11:13:29,444 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:29,444 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:29,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:29,445 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:13:29,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:29,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:29,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:29,449 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:29,449 INFO L82 PathProgramCache]: Analyzing trace with hash 3112, now seen corresponding path program 2 times [2018-11-28 11:13:29,449 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:29,449 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:29,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:29,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:13:29,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:29,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:29,452 INFO L82 PathProgramCache]: Analyzing trace with hash 645770306, now seen corresponding path program 2 times [2018-11-28 11:13:29,452 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:29,452 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:29,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:29,453 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:13:29,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:29,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:29,510 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:13:29,510 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:13:29,510 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:13:29,510 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:13:29,510 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:13:29,511 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:13:29,511 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:13:29,511 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:13:29,511 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration8_Lasso [2018-11-28 11:13:29,511 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:13:29,511 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:13:29,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,578 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:13:29,578 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:29,581 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:29,581 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:29,583 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:29,583 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:29,597 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:29,597 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:29,614 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:13:29,614 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:29,671 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:13:29,672 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:13:29,672 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:13:29,672 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:13:29,673 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:13:29,673 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:13:29,673 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:13:29,673 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:13:29,673 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:13:29,673 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration8_Lasso [2018-11-28 11:13:29,673 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:13:29,673 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:13:29,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,724 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:13:29,725 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:13:29,725 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 [2018-11-28 11:13:29,725 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:29,725 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:29,725 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:29,725 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:29,725 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:29,725 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:29,725 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:29,726 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:29,726 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 [2018-11-28 11:13:29,726 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:29,726 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:29,726 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:29,726 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:29,727 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:13:29,727 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:13:29,730 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:13:29,731 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 11:13:29,731 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 11:13:29,732 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:13:29,733 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 11:13:29,733 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:13:29,733 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] [2018-11-28 11:13:29,734 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 11:13:29,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:29,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:29,751 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:29,760 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:29,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:13:29,770 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 [2018-11-28 11:13:29,770 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 57 transitions. cyclomatic complexity: 27 Second operand 4 states. [2018-11-28 11:13:29,804 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 57 transitions. cyclomatic complexity: 27. Second operand 4 states. Result 58 states and 79 transitions. Complement of second has 6 states. [2018-11-28 11:13:29,807 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 [2018-11-28 11:13:29,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 11:13:29,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-11-28 11:13:29,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-28 11:13:29,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:29,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-28 11:13:29,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:29,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-28 11:13:29,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:29,808 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 79 transitions. [2018-11-28 11:13:29,809 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 11:13:29,810 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 50 states and 69 transitions. [2018-11-28 11:13:29,810 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2018-11-28 11:13:29,810 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2018-11-28 11:13:29,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 69 transitions. [2018-11-28 11:13:29,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:13:29,810 INFO L705 BuchiCegarLoop]: Abstraction has 50 states and 69 transitions. [2018-11-28 11:13:29,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 69 transitions. [2018-11-28 11:13:29,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2018-11-28 11:13:29,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-28 11:13:29,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2018-11-28 11:13:29,823 INFO L728 BuchiCegarLoop]: Abstraction has 48 states and 67 transitions. [2018-11-28 11:13:29,823 INFO L608 BuchiCegarLoop]: Abstraction has 48 states and 67 transitions. [2018-11-28 11:13:29,823 INFO L442 BuchiCegarLoop]: ======== Iteration 9============ [2018-11-28 11:13:29,823 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 67 transitions. [2018-11-28 11:13:29,824 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 11:13:29,824 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:13:29,824 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:13:29,824 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1] [2018-11-28 11:13:29,824 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 11:13:29,824 INFO L794 eck$LassoCheckResult]: Stem: 923#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 924#L41 assume 0 != main_#t~nondet5;havoc main_#t~nondet5;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 934#L18 assume !(f_~k~0 > 1073741823); 930#L23-1 assume !(f_~z~0 < f_~k~0); 925#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 926#L29 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 958#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 951#L29 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 952#L30 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 956#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 955#L29 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 936#L29-2 [2018-11-28 11:13:29,824 INFO L796 eck$LassoCheckResult]: Loop: 936#L29-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 935#L29 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 936#L29-2 [2018-11-28 11:13:29,824 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:29,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1600239380, now seen corresponding path program 3 times [2018-11-28 11:13:29,825 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:29,825 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:29,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:29,825 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:13:29,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:29,830 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:29,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1896, now seen corresponding path program 3 times [2018-11-28 11:13:29,830 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:29,830 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:29,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:29,831 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:13:29,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:29,833 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:29,833 INFO L82 PathProgramCache]: Analyzing trace with hash 231753147, now seen corresponding path program 4 times [2018-11-28 11:13:29,833 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:29,833 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:29,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:29,833 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:13:29,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:29,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:29,898 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:13:29,898 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:13:29,898 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:13:29,898 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:13:29,898 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:13:29,898 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:13:29,899 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:13:29,899 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:13:29,899 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration9_Lasso [2018-11-28 11:13:29,899 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:13:29,899 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:13:29,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:29,962 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:13:29,962 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:29,968 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:29,968 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:29,970 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:29,970 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:29,993 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:29,993 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:29,995 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:29,995 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:30,011 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:30,011 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:30,027 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:30,028 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:30,051 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:30,051 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:30,053 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:30,053 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:30,067 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:30,068 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:30,069 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:30,069 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:30,085 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:30,085 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:30,087 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:30,087 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:30,102 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:30,102 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:30,118 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:30,118 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:30,124 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:30,124 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:30,126 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:30,126 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:30,142 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:30,142 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:30,144 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:30,144 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:30,160 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:30,160 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:30,192 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:13:30,192 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:30,293 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:13:30,294 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:13:30,294 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:13:30,294 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:13:30,294 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:13:30,294 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:13:30,294 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:13:30,294 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:13:30,295 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:13:30,295 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration9_Lasso [2018-11-28 11:13:30,295 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:13:30,295 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:13:30,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,373 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:13:30,373 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:13:30,373 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 [2018-11-28 11:13:30,374 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:30,374 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:30,374 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:30,374 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:30,374 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:30,374 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:30,374 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:30,375 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:30,375 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 [2018-11-28 11:13:30,376 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:30,376 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:30,376 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:30,376 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:30,376 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:30,377 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:30,377 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:30,377 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:30,377 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 [2018-11-28 11:13:30,378 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:30,378 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:30,378 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:30,378 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:30,378 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:30,378 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:30,378 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:30,378 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:30,379 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 [2018-11-28 11:13:30,379 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:30,379 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:30,379 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:30,379 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:30,380 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:13:30,380 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:13:30,380 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:30,380 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 [2018-11-28 11:13:30,381 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:30,381 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:30,381 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:30,381 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:30,381 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:30,381 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:30,381 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:30,382 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:30,382 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 [2018-11-28 11:13:30,382 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:30,382 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:30,382 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:30,382 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:30,382 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:30,383 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:30,383 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:30,383 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:30,383 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 [2018-11-28 11:13:30,383 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:30,383 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:30,383 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:30,383 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:30,384 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:30,384 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:30,384 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:30,384 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:30,384 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 [2018-11-28 11:13:30,384 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:30,384 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:30,385 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:30,385 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:30,385 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:13:30,385 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:13:30,387 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:30,387 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 [2018-11-28 11:13:30,387 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:30,387 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:30,388 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:30,388 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:30,388 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:30,388 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:30,388 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:30,389 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:30,389 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 [2018-11-28 11:13:30,389 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:30,389 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:30,390 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:30,390 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:30,391 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:13:30,391 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:13:30,396 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:13:30,399 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 11:13:30,399 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 11:13:30,400 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:13:30,400 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 11:13:30,400 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:13:30,401 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] [2018-11-28 11:13:30,414 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 11:13:30,434 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:30,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:30,439 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:30,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:30,442 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:30,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:13:30,449 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 [2018-11-28 11:13:30,449 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 67 transitions. cyclomatic complexity: 31 Second operand 4 states. [2018-11-28 11:13:30,466 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 67 transitions. cyclomatic complexity: 31. Second operand 4 states. Result 56 states and 75 transitions. Complement of second has 6 states. [2018-11-28 11:13:30,466 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 [2018-11-28 11:13:30,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 11:13:30,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-11-28 11:13:30,467 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-28 11:13:30,467 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:30,467 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 11:13:30,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:30,482 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:30,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:30,486 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:30,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:13:30,494 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 [2018-11-28 11:13:30,494 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 67 transitions. cyclomatic complexity: 31 Second operand 4 states. [2018-11-28 11:13:30,510 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 67 transitions. cyclomatic complexity: 31. Second operand 4 states. Result 56 states and 75 transitions. Complement of second has 6 states. [2018-11-28 11:13:30,510 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 [2018-11-28 11:13:30,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 11:13:30,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-11-28 11:13:30,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-28 11:13:30,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:30,511 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 11:13:30,523 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:30,528 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:30,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:30,531 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:30,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:13:30,538 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 [2018-11-28 11:13:30,538 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 67 transitions. cyclomatic complexity: 31 Second operand 4 states. [2018-11-28 11:13:30,555 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 67 transitions. cyclomatic complexity: 31. Second operand 4 states. Result 59 states and 80 transitions. Complement of second has 5 states. [2018-11-28 11:13:30,556 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 [2018-11-28 11:13:30,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 11:13:30,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2018-11-28 11:13:30,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-28 11:13:30,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:30,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 13 letters. Loop has 2 letters. [2018-11-28 11:13:30,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:30,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 4 letters. [2018-11-28 11:13:30,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:30,557 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 80 transitions. [2018-11-28 11:13:30,559 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 11:13:30,560 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 25 states and 34 transitions. [2018-11-28 11:13:30,560 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2018-11-28 11:13:30,560 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-28 11:13:30,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 34 transitions. [2018-11-28 11:13:30,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 11:13:30,560 INFO L705 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2018-11-28 11:13:30,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 34 transitions. [2018-11-28 11:13:30,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-11-28 11:13:30,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-28 11:13:30,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2018-11-28 11:13:30,562 INFO L728 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2018-11-28 11:13:30,562 INFO L608 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2018-11-28 11:13:30,562 INFO L442 BuchiCegarLoop]: ======== Iteration 10============ [2018-11-28 11:13:30,562 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 34 transitions. [2018-11-28 11:13:30,562 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 11:13:30,563 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:13:30,563 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:13:30,563 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1] [2018-11-28 11:13:30,563 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 11:13:30,563 INFO L794 eck$LassoCheckResult]: Stem: 1310#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5; 1311#L41 assume !(0 != main_#t~nondet5);havoc main_#t~nondet5;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1312#L18-1 assume !(f_~k~0 > 1073741823); 1313#L23-3 assume !(f_~z~0 < f_~k~0); 1316#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1317#L29-3 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1329#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1328#L29-3 assume 0 != f_#t~nondet3;havoc f_#t~nondet3; 1326#L30-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1325#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1321#L29-3 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1323#L29-5 [2018-11-28 11:13:30,563 INFO L796 eck$LassoCheckResult]: Loop: 1323#L29-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0); 1324#L29-3 assume !(0 != f_#t~nondet3);havoc f_#t~nondet3;f_~y~0 := f_~y~0 - f_~d; 1323#L29-5 [2018-11-28 11:13:30,563 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:30,563 INFO L82 PathProgramCache]: Analyzing trace with hash 755756756, now seen corresponding path program 3 times [2018-11-28 11:13:30,563 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:30,563 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:30,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:30,564 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:13:30,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:30,569 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:30,569 INFO L82 PathProgramCache]: Analyzing trace with hash 3112, now seen corresponding path program 3 times [2018-11-28 11:13:30,569 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:30,569 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:30,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:30,570 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:13:30,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:30,572 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:30,572 INFO L82 PathProgramCache]: Analyzing trace with hash 432771643, now seen corresponding path program 4 times [2018-11-28 11:13:30,572 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:13:30,572 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:13:30,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:30,573 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:13:30,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:13:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:30,634 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:13:30,634 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:13:30,634 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:13:30,634 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:13:30,634 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 11:13:30,634 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:13:30,635 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:13:30,635 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:13:30,635 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration10_Lasso [2018-11-28 11:13:30,635 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:13:30,635 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:13:30,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,715 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:13:30,715 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:30,721 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:30,721 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:30,736 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:30,736 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:30,738 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:30,738 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:30,740 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:30,740 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:30,756 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:30,756 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:30,775 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:30,775 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:30,777 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:30,777 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:30,779 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 11:13:30,779 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_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:30,795 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 11:13:30,796 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bc122370-94db-4951-9179-6d455dca2900/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 [2018-11-28 11:13:30,812 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 11:13:30,812 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 11:13:30,873 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 11:13:30,874 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 11:13:30,874 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 11:13:30,874 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 11:13:30,874 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 11:13:30,874 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 11:13:30,874 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:13:30,874 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 11:13:30,874 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 11:13:30,875 INFO L131 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig1_true-termination_true-no-overflow.c_Iteration10_Lasso [2018-11-28 11:13:30,875 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 11:13:30,875 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 11:13:30,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 11:13:30,929 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 11:13:30,929 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 11:13:30,930 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 [2018-11-28 11:13:30,930 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:30,930 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:30,930 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:30,930 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:30,930 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:13:30,930 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:13:30,931 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:30,931 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 [2018-11-28 11:13:30,932 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:30,932 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:30,932 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:30,932 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:30,932 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:30,932 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:30,932 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:30,932 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:30,932 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 [2018-11-28 11:13:30,933 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:30,933 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:30,933 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:30,933 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:30,933 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:13:30,933 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:13:30,935 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:30,935 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 [2018-11-28 11:13:30,935 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:30,935 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 11:13:30,935 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:30,936 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:30,936 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:30,936 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 11:13:30,936 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 11:13:30,936 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 11:13:30,936 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 [2018-11-28 11:13:30,937 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 11:13:30,937 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 11:13:30,937 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 11:13:30,937 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 11:13:30,937 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 11:13:30,938 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 11:13:30,942 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 11:13:30,943 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 11:13:30,944 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 11:13:30,944 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 11:13:30,945 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 11:13:30,945 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 11:13:30,945 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] [2018-11-28 11:13:30,973 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 11:13:30,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:30,993 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:30,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:30,997 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:31,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:13:31,004 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 [2018-11-28 11:13:31,004 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 34 transitions. cyclomatic complexity: 15 Second operand 4 states. [2018-11-28 11:13:31,024 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 34 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 33 states and 42 transitions. Complement of second has 6 states. [2018-11-28 11:13:31,024 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 [2018-11-28 11:13:31,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 11:13:31,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2018-11-28 11:13:31,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-28 11:13:31,025 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:31,025 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 11:13:31,041 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:31,046 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:31,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:31,049 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:31,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:13:31,058 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 [2018-11-28 11:13:31,058 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 34 transitions. cyclomatic complexity: 15 Second operand 4 states. [2018-11-28 11:13:31,074 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 34 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 33 states and 42 transitions. Complement of second has 6 states. [2018-11-28 11:13:31,075 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 [2018-11-28 11:13:31,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 11:13:31,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2018-11-28 11:13:31,075 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-28 11:13:31,075 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:31,076 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 11:13:31,089 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:13:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:31,093 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:13:31,097 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:13:31,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:13:31,105 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 [2018-11-28 11:13:31,105 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 34 transitions. cyclomatic complexity: 15 Second operand 4 states. [2018-11-28 11:13:31,121 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 34 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 36 states and 47 transitions. Complement of second has 5 states. [2018-11-28 11:13:31,122 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 [2018-11-28 11:13:31,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 11:13:31,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2018-11-28 11:13:31,122 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-28 11:13:31,122 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:31,123 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 13 letters. Loop has 2 letters. [2018-11-28 11:13:31,123 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:31,123 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 11 letters. Loop has 4 letters. [2018-11-28 11:13:31,123 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 11:13:31,123 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 47 transitions. [2018-11-28 11:13:31,124 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 11:13:31,124 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 0 states and 0 transitions. [2018-11-28 11:13:31,124 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 11:13:31,124 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 11:13:31,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 11:13:31,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 11:13:31,124 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:13:31,124 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:13:31,124 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:13:31,124 INFO L442 BuchiCegarLoop]: ======== Iteration 11============ [2018-11-28 11:13:31,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 11:13:31,124 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 11:13:31,124 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 11:13:31,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:13:31 BoogieIcfgContainer [2018-11-28 11:13:31,130 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 11:13:31,131 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:13:31,131 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:13:31,131 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:13:31,131 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:12:57" (3/4) ... [2018-11-28 11:13:31,135 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 11:13:31,135 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:13:31,136 INFO L168 Benchmark]: Toolchain (without parser) took 34386.96 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 314.0 MB). Free memory was 953.3 MB in the beginning and 1.2 GB in the end (delta: -239.9 MB). Peak memory consumption was 74.1 MB. Max. memory is 11.5 GB. [2018-11-28 11:13:31,137 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:13:31,137 INFO L168 Benchmark]: CACSL2BoogieTranslator took 135.55 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-28 11:13:31,137 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.88 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:13:31,137 INFO L168 Benchmark]: Boogie Preprocessor took 13.51 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:13:31,138 INFO L168 Benchmark]: RCFGBuilder took 208.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -182.3 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-11-28 11:13:31,138 INFO L168 Benchmark]: BuchiAutomizer took 34001.30 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 175.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -71.2 MB). Peak memory consumption was 104.4 MB. Max. memory is 11.5 GB. [2018-11-28 11:13:31,138 INFO L168 Benchmark]: Witness Printer took 4.40 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. [2018-11-28 11:13:31,140 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 135.55 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.88 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.51 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 208.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -182.3 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 34001.30 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 175.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -71.2 MB). Peak memory consumption was 104.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.40 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 4 locations. One deterministic module has affine ranking function y and consists of 4 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 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 33.9s and 11 iterations. TraceHistogramMax:3. Analysis of lassos took 32.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 22 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 48 states and ocurred in iteration 8. Nontrivial modules had stage [8, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 182 SDtfs, 246 SDslu, 59 SDs, 0 SdLazy, 137 SolverSat, 67 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: 89ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 58 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 29.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...