./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/loops/trex01_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/trex01_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b3a658a1fe592322f5aa7f1391ad7ef7d0545b11 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 12:20:35,765 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:20:35,767 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:20:35,775 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:20:35,775 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:20:35,776 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:20:35,777 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:20:35,778 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:20:35,779 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:20:35,780 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:20:35,781 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:20:35,781 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:20:35,782 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:20:35,783 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:20:35,784 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:20:35,784 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:20:35,785 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:20:35,787 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:20:35,788 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:20:35,789 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:20:35,790 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:20:35,791 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:20:35,793 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:20:35,793 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:20:35,793 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:20:35,794 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:20:35,795 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:20:35,796 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:20:35,796 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:20:35,797 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:20:35,798 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:20:35,798 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:20:35,798 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:20:35,798 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:20:35,799 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:20:35,800 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:20:35,800 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-10 12:20:35,813 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:20:35,813 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:20:35,814 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 12:20:35,814 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 12:20:35,814 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 12:20:35,814 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 12:20:35,815 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 12:20:35,815 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 12:20:35,815 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 12:20:35,815 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 12:20:35,815 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 12:20:35,816 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:20:35,816 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 12:20:35,816 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 12:20:35,816 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 12:20:35,816 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 12:20:35,816 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:20:35,816 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 12:20:35,817 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 12:20:35,817 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 12:20:35,817 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 12:20:35,817 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:20:35,817 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 12:20:35,817 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 12:20:35,818 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:20:35,818 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:20:35,818 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 12:20:35,818 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:20:35,818 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 12:20:35,819 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 12:20:35,819 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 12:20:35,819 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3a658a1fe592322f5aa7f1391ad7ef7d0545b11 [2018-11-10 12:20:35,844 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:20:35,853 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:20:35,855 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:20:35,857 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:20:35,857 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:20:35,857 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/bin-2019/uautomizer/../../sv-benchmarks/c/loops/trex01_false-unreach-call_true-termination.i [2018-11-10 12:20:35,900 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/bin-2019/uautomizer/data/2ac4304ea/72dc5aa121a84604bffdee91c8c2c7b6/FLAG48812947f [2018-11-10 12:20:36,259 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:20:36,260 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/sv-benchmarks/c/loops/trex01_false-unreach-call_true-termination.i [2018-11-10 12:20:36,264 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/bin-2019/uautomizer/data/2ac4304ea/72dc5aa121a84604bffdee91c8c2c7b6/FLAG48812947f [2018-11-10 12:20:36,276 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/bin-2019/uautomizer/data/2ac4304ea/72dc5aa121a84604bffdee91c8c2c7b6 [2018-11-10 12:20:36,279 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:20:36,280 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 12:20:36,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:20:36,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:20:36,284 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:20:36,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:20:36" (1/1) ... [2018-11-10 12:20:36,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc2202b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:20:36, skipping insertion in model container [2018-11-10 12:20:36,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:20:36" (1/1) ... [2018-11-10 12:20:36,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:20:36,309 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:20:36,414 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:20:36,417 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:20:36,428 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:20:36,437 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:20:36,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:20:36 WrapperNode [2018-11-10 12:20:36,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:20:36,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 12:20:36,439 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 12:20:36,439 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 12:20:36,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:20:36" (1/1) ... [2018-11-10 12:20:36,450 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:20:36" (1/1) ... [2018-11-10 12:20:36,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 12:20:36,463 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:20:36,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:20:36,463 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:20:36,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:20:36" (1/1) ... [2018-11-10 12:20:36,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:20:36" (1/1) ... [2018-11-10 12:20:36,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:20:36" (1/1) ... [2018-11-10 12:20:36,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:20:36" (1/1) ... [2018-11-10 12:20:36,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:20:36" (1/1) ... [2018-11-10 12:20:36,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:20:36" (1/1) ... [2018-11-10 12:20:36,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:20:36" (1/1) ... [2018-11-10 12:20:36,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:20:36,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:20:36,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:20:36,478 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:20:36,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:20:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:20:36,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:20:36,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:20:36,705 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:20:36,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:20:36 BoogieIcfgContainer [2018-11-10 12:20:36,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:20:36,706 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 12:20:36,706 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 12:20:36,709 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 12:20:36,710 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 12:20:36,710 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 12:20:36" (1/3) ... [2018-11-10 12:20:36,711 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64e9a89c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 12:20:36, skipping insertion in model container [2018-11-10 12:20:36,711 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 12:20:36,711 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:20:36" (2/3) ... [2018-11-10 12:20:36,711 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64e9a89c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 12:20:36, skipping insertion in model container [2018-11-10 12:20:36,712 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 12:20:36,712 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:20:36" (3/3) ... [2018-11-10 12:20:36,713 INFO L375 chiAutomizerObserver]: Analyzing ICFG trex01_false-unreach-call_true-termination.i [2018-11-10 12:20:36,766 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 12:20:36,767 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 12:20:36,767 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 12:20:36,767 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 12:20:36,767 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:20:36,767 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:20:36,767 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 12:20:36,768 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:20:36,768 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 12:20:36,778 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states. [2018-11-10 12:20:36,793 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2018-11-10 12:20:36,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:20:36,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:20:36,798 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-10 12:20:36,798 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-10 12:20:36,799 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 12:20:36,799 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states. [2018-11-10 12:20:36,800 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2018-11-10 12:20:36,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:20:36,801 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:20:36,801 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-10 12:20:36,801 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-10 12:20:36,807 INFO L793 eck$LassoCheckResult]: Stem: 28#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 14#L32true assume main_~c~1 % 256 != 0;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 18#L12true assume !!(f_~k~0 <= 1073741823); 31#L15-2true [2018-11-10 12:20:36,807 INFO L795 eck$LassoCheckResult]: Loop: 31#L15-2true assume true; 22#L15true assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 31#L15-2true [2018-11-10 12:20:36,812 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:20:36,813 INFO L82 PathProgramCache]: Analyzing trace with hash 925608, now seen corresponding path program 1 times [2018-11-10 12:20:36,814 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:20:36,815 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:20:36,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:20:36,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:20:36,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:20:36,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:20:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:20:36,892 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:20:36,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1415, now seen corresponding path program 1 times [2018-11-10 12:20:36,893 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:20:36,893 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:20:36,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:20:36,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:20:36,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:20:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:20:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:20:36,900 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:20:36,900 INFO L82 PathProgramCache]: Analyzing trace with hash 889509742, now seen corresponding path program 1 times [2018-11-10 12:20:36,901 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:20:36,901 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:20:36,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:20:36,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:20:36,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:20:36,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:20:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:20:36,973 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:20:36,974 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:20:36,974 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:20:36,974 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:20:36,974 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:20:36,975 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:20:36,975 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:20:36,975 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:20:36,975 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration1_Lasso [2018-11-10 12:20:36,975 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:20:36,976 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:20:36,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:37,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:37,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:37,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:37,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:37,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:37,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:37,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:37,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:37,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:37,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:37,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:37,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:37,264 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:20:37,265 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:20:37,270 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:20:37,270 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:20:37,277 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:20:37,277 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:20:37,296 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:20:37,296 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:20:37,299 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:20:37,299 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:20:37,317 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:20:37,317 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:20:37,338 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:20:37,338 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:20:49,379 INFO L448 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-10 12:20:49,382 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:20:49,382 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:20:49,382 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:20:49,382 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:20:49,382 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:20:49,382 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:20:49,383 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:20:49,383 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:20:49,383 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration1_Lasso [2018-11-10 12:20:49,383 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:20:49,383 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:20:49,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,544 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:20:49,549 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:20:49,550 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 [2018-11-10 12:20:49,552 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:20:49,552 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:20:49,553 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:20:49,553 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:20:49,553 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:20:49,555 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:20:49,555 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:20:49,558 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:20:49,559 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 [2018-11-10 12:20:49,560 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:20:49,560 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:20:49,560 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:20:49,560 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:20:49,560 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:20:49,561 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:20:49,561 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:20:49,562 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:20:49,562 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:20:49,563 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:20:49,563 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:20:49,563 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:20:49,563 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:20:49,564 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:20:49,564 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:20:49,564 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:20:49,565 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:20:49,566 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 [2018-11-10 12:20:49,566 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:20:49,566 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:20:49,567 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:20:49,567 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:20:49,567 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:20:49,567 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:20:49,567 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:20:49,568 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:20:49,569 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 [2018-11-10 12:20:49,569 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:20:49,570 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:20:49,570 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:20:49,570 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:20:49,574 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:20:49,574 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:20:49,625 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:20:49,653 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-10 12:20:49,653 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-10 12:20:49,656 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:20:49,659 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 12:20:49,659 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:20:49,660 INFO L519 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] [2018-11-10 12:20:49,663 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 12:20:49,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:20:49,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:20:49,735 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:20:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:20:49,745 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:20:49,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:20:49,758 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 [2018-11-10 12:20:49,760 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states. Second operand 4 states. [2018-11-10 12:20:49,837 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states.. Second operand 4 states. Result 93 states and 120 transitions. Complement of second has 7 states. [2018-11-10 12:20:49,838 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 [2018-11-10 12:20:49,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 12:20:49,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 88 transitions. [2018-11-10 12:20:49,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 88 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-10 12:20:49,842 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:20:49,842 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 88 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-10 12:20:49,843 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:20:49,843 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 88 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-10 12:20:49,843 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:20:49,844 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 93 states and 120 transitions. [2018-11-10 12:20:49,849 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 16 [2018-11-10 12:20:49,852 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 93 states to 33 states and 41 transitions. [2018-11-10 12:20:49,853 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2018-11-10 12:20:49,854 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2018-11-10 12:20:49,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 41 transitions. [2018-11-10 12:20:49,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 12:20:49,855 INFO L705 BuchiCegarLoop]: Abstraction has 33 states and 41 transitions. [2018-11-10 12:20:49,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 41 transitions. [2018-11-10 12:20:49,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 25. [2018-11-10 12:20:49,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-10 12:20:49,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2018-11-10 12:20:49,878 INFO L728 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2018-11-10 12:20:49,878 INFO L608 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2018-11-10 12:20:49,878 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 12:20:49,878 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 31 transitions. [2018-11-10 12:20:49,879 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2018-11-10 12:20:49,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:20:49,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:20:49,879 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-10 12:20:49,879 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-10 12:20:49,880 INFO L793 eck$LassoCheckResult]: Stem: 196#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 194#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 195#L32 assume !(main_~c~1 % 256 != 0);assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 198#L12-1 assume !!(f_~k~0 <= 1073741823); 191#L15-6 [2018-11-10 12:20:49,880 INFO L795 eck$LassoCheckResult]: Loop: 191#L15-6 assume true; 192#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 191#L15-6 [2018-11-10 12:20:49,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:20:49,880 INFO L82 PathProgramCache]: Analyzing trace with hash 927304, now seen corresponding path program 1 times [2018-11-10 12:20:49,881 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:20:49,881 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:20:49,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:20:49,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:20:49,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:20:49,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:20:49,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:20:49,891 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:20:49,891 INFO L82 PathProgramCache]: Analyzing trace with hash 3111, now seen corresponding path program 1 times [2018-11-10 12:20:49,891 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:20:49,891 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:20:49,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:20:49,892 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:20:49,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:20:49,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:20:49,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:20:49,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:20:49,896 INFO L82 PathProgramCache]: Analyzing trace with hash 891141294, now seen corresponding path program 1 times [2018-11-10 12:20:49,896 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:20:49,897 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:20:49,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:20:49,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:20:49,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:20:49,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:20:49,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:20:49,958 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:20:49,958 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:20:49,958 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:20:49,958 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:20:49,958 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:20:49,959 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:20:49,959 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:20:49,959 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:20:49,959 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration2_Lasso [2018-11-10 12:20:49,959 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:20:49,959 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:20:49,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:49,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:20:50,070 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:20:50,070 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:20:50,075 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:20:50,075 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:20:50,078 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:20:50,078 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:20:50,098 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:20:50,099 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:20:50,101 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:20:50,101 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:20:50,120 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:20:50,120 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:20:50,122 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:20:50,122 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:20:50,140 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:20:50,141 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:20:50,147 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:20:50,147 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:20:50,166 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:20:50,166 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:20:50,168 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:20:50,168 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:20:50,186 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:20:50,186 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:20:50,189 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:20:50,189 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:20:50,208 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:20:50,208 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:20:50,210 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:20:50,210 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=0} Honda state: {ULTIMATE.start_f_~c~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:20:50,229 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:20:50,229 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:20:50,231 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:20:50,231 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:20:50,250 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:20:50,250 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:20:50,253 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:20:50,253 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:20:50,271 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:20:50,271 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:20:50,293 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:20:50,293 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:02,336 INFO L448 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-10 12:21:02,339 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:21:02,340 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:21:02,340 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:21:02,340 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:21:02,340 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:21:02,340 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:21:02,340 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:21:02,340 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:21:02,340 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration2_Lasso [2018-11-10 12:21:02,340 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:21:02,340 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:21:02,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:02,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:02,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:02,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:02,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:02,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:02,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:02,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:02,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:02,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:02,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:02,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:02,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:02,452 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:21:02,452 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:21:02,452 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 [2018-11-10 12:21:02,453 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:02,453 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:02,453 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:02,453 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:02,453 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:02,454 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:02,454 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:02,458 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:02,458 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 [2018-11-10 12:21:02,459 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:02,459 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:02,459 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:02,459 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:02,459 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:02,460 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:02,460 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:02,461 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:02,461 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 [2018-11-10 12:21:02,461 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:02,461 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:02,462 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:02,462 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:02,462 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:02,462 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:02,462 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:02,468 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:02,469 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 [2018-11-10 12:21:02,469 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:02,469 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:02,469 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:02,470 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:02,470 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:02,470 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:02,470 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:02,471 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:02,472 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 [2018-11-10 12:21:02,472 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:02,472 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:02,472 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:02,473 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:02,473 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:02,473 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:02,473 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:02,474 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:02,474 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 [2018-11-10 12:21:02,475 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:02,475 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:02,475 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:02,475 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:02,475 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:02,476 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:02,476 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:02,476 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:02,477 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 [2018-11-10 12:21:02,477 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:02,478 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:02,478 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:02,478 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:02,480 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:02,480 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:02,509 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:21:02,536 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2018-11-10 12:21:02,536 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-10 12:21:02,537 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:21:02,538 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 12:21:02,538 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:21:02,538 INFO L519 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] [2018-11-10 12:21:02,544 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 12:21:02,630 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:02,636 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:02,640 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:02,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:21:02,641 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 [2018-11-10 12:21:02,641 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand 4 states. [2018-11-10 12:21:02,678 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 42 states and 52 transitions. Complement of second has 6 states. [2018-11-10 12:21:02,679 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 [2018-11-10 12:21:02,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 12:21:02,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2018-11-10 12:21:02,680 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-10 12:21:02,680 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:02,680 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-10 12:21:02,681 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:02,681 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-10 12:21:02,681 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:02,681 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 52 transitions. [2018-11-10 12:21:02,682 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2018-11-10 12:21:02,683 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 35 states and 44 transitions. [2018-11-10 12:21:02,683 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2018-11-10 12:21:02,683 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2018-11-10 12:21:02,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 44 transitions. [2018-11-10 12:21:02,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 12:21:02,684 INFO L705 BuchiCegarLoop]: Abstraction has 35 states and 44 transitions. [2018-11-10 12:21:02,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 44 transitions. [2018-11-10 12:21:02,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 27. [2018-11-10 12:21:02,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-10 12:21:02,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2018-11-10 12:21:02,686 INFO L728 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2018-11-10 12:21:02,686 INFO L608 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2018-11-10 12:21:02,686 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-10 12:21:02,686 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 34 transitions. [2018-11-10 12:21:02,687 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-10 12:21:02,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:21:02,687 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:21:02,688 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:21:02,688 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 12:21:02,688 INFO L793 eck$LassoCheckResult]: Stem: 314#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 312#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 313#L32 assume main_~c~1 % 256 != 0;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 315#L12 assume !!(f_~k~0 <= 1073741823); 319#L15-2 assume true; 295#L15 assume !(f_~z~0 < f_~k~0); 296#L15-3 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 318#L3 assume !(__VERIFIER_assert_~cond == 0); 317#L3-2 assume { :end_inline___VERIFIER_assert } true; 301#L20-2 [2018-11-10 12:21:02,688 INFO L795 eck$LassoCheckResult]: Loop: 301#L20-2 assume true; 302#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 303#L20 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 301#L20-2 [2018-11-10 12:21:02,688 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:02,689 INFO L82 PathProgramCache]: Analyzing trace with hash -563527921, now seen corresponding path program 1 times [2018-11-10 12:21:02,689 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:02,689 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:02,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:02,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:21:02,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:02,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:02,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:21:02,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:21:02,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 12:21:02,729 INFO L798 eck$LassoCheckResult]: stem already infeasible [2018-11-10 12:21:02,730 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:02,730 INFO L82 PathProgramCache]: Analyzing trace with hash 67724, now seen corresponding path program 1 times [2018-11-10 12:21:02,730 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:02,730 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:02,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:02,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:21:02,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:02,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 12:21:02,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 12:21:02,758 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. cyclomatic complexity: 11 Second operand 4 states. [2018-11-10 12:21:02,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:21:02,787 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2018-11-10 12:21:02,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 12:21:02,788 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 40 transitions. [2018-11-10 12:21:02,789 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-10 12:21:02,789 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 29 states and 34 transitions. [2018-11-10 12:21:02,789 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2018-11-10 12:21:02,790 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2018-11-10 12:21:02,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 34 transitions. [2018-11-10 12:21:02,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 12:21:02,790 INFO L705 BuchiCegarLoop]: Abstraction has 29 states and 34 transitions. [2018-11-10 12:21:02,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 34 transitions. [2018-11-10 12:21:02,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2018-11-10 12:21:02,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-10 12:21:02,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2018-11-10 12:21:02,792 INFO L728 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2018-11-10 12:21:02,793 INFO L608 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2018-11-10 12:21:02,793 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-10 12:21:02,793 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 32 transitions. [2018-11-10 12:21:02,793 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-10 12:21:02,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:21:02,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:21:02,794 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:21:02,794 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 12:21:02,794 INFO L793 eck$LassoCheckResult]: Stem: 385#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 383#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 384#L32 assume main_~c~1 % 256 != 0;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, 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; 386#L12 assume !!(f_~k~0 <= 1073741823); 389#L15-2 assume true; 366#L15 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 367#L15-2 assume true; 364#L15 assume !(f_~z~0 < f_~k~0); 365#L15-3 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 390#L3 assume !(__VERIFIER_assert_~cond == 0); 388#L3-2 assume { :end_inline___VERIFIER_assert } true; 372#L20-2 [2018-11-10 12:21:02,794 INFO L795 eck$LassoCheckResult]: Loop: 372#L20-2 assume true; 373#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 374#L20 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 372#L20-2 [2018-11-10 12:21:02,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:02,794 INFO L82 PathProgramCache]: Analyzing trace with hash -336825591, now seen corresponding path program 1 times [2018-11-10 12:21:02,794 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:02,794 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:02,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:02,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:21:02,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:02,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:02,803 INFO L82 PathProgramCache]: Analyzing trace with hash 67724, now seen corresponding path program 2 times [2018-11-10 12:21:02,803 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:02,804 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:02,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:02,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:21:02,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:02,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:02,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:02,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1327540092, now seen corresponding path program 1 times [2018-11-10 12:21:02,811 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:02,812 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:02,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:02,812 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:21:02,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:02,903 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:21:02,903 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:21:02,903 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:21:02,903 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:21:02,903 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:21:02,904 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:21:02,904 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:21:02,904 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:21:02,904 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration4_Lasso [2018-11-10 12:21:02,904 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:21:02,904 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:21:02,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:02,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:02,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:02,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:02,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:02,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:02,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:02,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:02,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:02,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:02,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:02,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,050 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:21:03,050 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:03,056 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:03,056 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:03,058 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:03,058 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:03,077 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:03,078 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:03,085 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:03,086 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=-256, ULTIMATE.start_f_#t~nondet3=-256} Honda state: {ULTIMATE.start_f_~c~0=-256, ULTIMATE.start_f_#t~nondet3=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:03,105 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:03,105 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:03,126 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:21:03,126 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:03,196 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 12:21:03,198 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:21:03,198 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:21:03,198 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:21:03,198 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:21:03,198 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:21:03,198 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:21:03,198 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:21:03,198 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:21:03,198 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration4_Lasso [2018-11-10 12:21:03,199 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:21:03,199 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:21:03,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,317 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:21:03,318 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:21:03,318 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 [2018-11-10 12:21:03,318 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:03,318 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:03,319 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:03,319 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:03,319 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:03,319 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:03,319 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:03,320 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:03,320 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 [2018-11-10 12:21:03,320 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:03,321 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:03,321 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:03,321 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:03,322 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:03,322 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:03,325 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:03,325 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 [2018-11-10 12:21:03,325 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:03,326 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:03,326 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:03,326 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:03,327 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:03,327 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:03,334 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:21:03,338 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-10 12:21:03,339 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 12:21:03,339 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:21:03,340 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 12:21:03,340 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:21:03,341 INFO L519 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] [2018-11-10 12:21:03,352 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 12:21:03,367 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:03,373 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:03,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:03,386 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:03,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:21:03,394 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 [2018-11-10 12:21:03,394 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 32 transitions. cyclomatic complexity: 9 Second operand 5 states. [2018-11-10 12:21:03,422 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 32 transitions. cyclomatic complexity: 9. Second operand 5 states. Result 35 states and 42 transitions. Complement of second has 8 states. [2018-11-10 12:21:03,422 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 [2018-11-10 12:21:03,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 12:21:03,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2018-11-10 12:21:03,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 11 letters. Loop has 3 letters. [2018-11-10 12:21:03,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:03,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 14 letters. Loop has 3 letters. [2018-11-10 12:21:03,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:03,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 11 letters. Loop has 6 letters. [2018-11-10 12:21:03,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:03,424 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 42 transitions. [2018-11-10 12:21:03,424 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-10 12:21:03,425 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 34 states and 41 transitions. [2018-11-10 12:21:03,425 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2018-11-10 12:21:03,425 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2018-11-10 12:21:03,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 41 transitions. [2018-11-10 12:21:03,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 12:21:03,425 INFO L705 BuchiCegarLoop]: Abstraction has 34 states and 41 transitions. [2018-11-10 12:21:03,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 41 transitions. [2018-11-10 12:21:03,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2018-11-10 12:21:03,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-10 12:21:03,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2018-11-10 12:21:03,428 INFO L728 BuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2018-11-10 12:21:03,428 INFO L608 BuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2018-11-10 12:21:03,428 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-10 12:21:03,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 40 transitions. [2018-11-10 12:21:03,428 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-10 12:21:03,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:21:03,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:21:03,429 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:21:03,429 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 12:21:03,429 INFO L793 eck$LassoCheckResult]: Stem: 528#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 526#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 527#L32 assume !(main_~c~1 % 256 != 0);assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, 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; 530#L12-1 assume !!(f_~k~0 <= 1073741823); 521#L15-6 assume true; 522#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 523#L15-6 assume true; 524#L15-4 assume !(f_~z~0 < f_~k~0); 518#L15-7 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 519#L3-3 assume !(__VERIFIER_assert_~cond == 0); 520#L3-5 assume { :end_inline___VERIFIER_assert } true; 507#L20-5 [2018-11-10 12:21:03,429 INFO L795 eck$LassoCheckResult]: Loop: 507#L20-5 assume true; 508#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 509#L20-3 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 507#L20-5 [2018-11-10 12:21:03,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:03,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1892980926, now seen corresponding path program 1 times [2018-11-10 12:21:03,430 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:03,430 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:03,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:03,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:21:03,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:03,437 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:03,437 INFO L82 PathProgramCache]: Analyzing trace with hash 120353, now seen corresponding path program 1 times [2018-11-10 12:21:03,437 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:03,437 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:03,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:03,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:21:03,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:03,441 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:03,441 INFO L82 PathProgramCache]: Analyzing trace with hash 874260548, now seen corresponding path program 1 times [2018-11-10 12:21:03,441 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:03,441 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:03,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:03,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:21:03,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:03,532 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:21:03,532 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:21:03,532 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:21:03,532 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:21:03,532 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:21:03,532 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:21:03,532 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:21:03,532 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:21:03,532 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration5_Lasso [2018-11-10 12:21:03,532 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:21:03,533 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:21:03,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,628 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:21:03,628 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:03,631 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:03,631 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:03,633 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:03,634 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:03,654 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:03,654 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:03,660 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:03,660 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:03,679 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:03,679 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:03,686 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:03,686 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-256, ULTIMATE.start_f_~c~0=-256} Honda state: {ULTIMATE.start_f_#t~nondet3=-256, ULTIMATE.start_f_~c~0=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:03,704 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:03,704 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:03,725 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:21:03,725 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:03,809 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 12:21:03,810 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:21:03,810 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:21:03,811 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:21:03,811 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:21:03,811 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:21:03,811 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:21:03,811 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:21:03,811 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:21:03,811 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration5_Lasso [2018-11-10 12:21:03,811 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:21:03,811 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:21:03,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:03,982 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:21:03,982 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:21:03,982 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 [2018-11-10 12:21:03,983 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:03,983 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:03,983 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:03,983 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:03,983 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:03,984 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:03,984 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:03,984 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:03,985 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 [2018-11-10 12:21:03,985 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:03,985 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:03,985 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:03,986 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:03,987 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:03,987 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:03,989 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:03,989 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 [2018-11-10 12:21:03,989 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:03,990 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:03,990 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:03,990 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:03,991 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:03,991 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:03,995 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:03,996 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 [2018-11-10 12:21:03,997 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:03,997 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:03,997 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:03,997 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:03,998 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:03,998 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:03,998 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:03,999 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:04,000 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:21:04,000 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:04,000 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:04,000 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:04,001 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:04,001 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:04,001 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:04,001 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:04,001 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:04,002 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 [2018-11-10 12:21:04,002 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:04,002 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:04,002 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:04,002 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:04,003 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:04,004 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:04,007 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:04,007 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:21:04,007 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:04,008 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:04,008 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:04,008 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:04,008 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:04,008 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:04,008 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:04,008 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:04,009 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:21:04,009 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:04,009 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:04,009 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:04,009 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:04,009 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:04,009 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:04,010 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:04,010 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:04,010 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 [2018-11-10 12:21:04,011 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:04,011 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:04,011 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:04,011 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:04,011 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:04,011 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:04,011 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:04,012 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:04,012 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 [2018-11-10 12:21:04,013 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:04,013 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:04,013 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:04,013 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:04,015 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:04,015 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:04,023 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:21:04,026 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 12:21:04,027 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 12:21:04,027 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:21:04,028 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 12:21:04,029 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:21:04,029 INFO L519 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] [2018-11-10 12:21:04,039 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 12:21:04,058 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:04,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:04,064 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:04,069 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:04,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:21:04,083 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 [2018-11-10 12:21:04,083 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 12 Second operand 5 states. [2018-11-10 12:21:04,113 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 12. Second operand 5 states. Result 41 states and 50 transitions. Complement of second has 8 states. [2018-11-10 12:21:04,115 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 [2018-11-10 12:21:04,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 12:21:04,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2018-11-10 12:21:04,116 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 11 letters. Loop has 3 letters. [2018-11-10 12:21:04,116 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:04,116 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 14 letters. Loop has 3 letters. [2018-11-10 12:21:04,116 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:04,117 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 11 letters. Loop has 6 letters. [2018-11-10 12:21:04,117 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:04,117 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 50 transitions. [2018-11-10 12:21:04,118 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-10 12:21:04,118 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 40 states and 49 transitions. [2018-11-10 12:21:04,118 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2018-11-10 12:21:04,119 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-11-10 12:21:04,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 49 transitions. [2018-11-10 12:21:04,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 12:21:04,119 INFO L705 BuchiCegarLoop]: Abstraction has 40 states and 49 transitions. [2018-11-10 12:21:04,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 49 transitions. [2018-11-10 12:21:04,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2018-11-10 12:21:04,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-10 12:21:04,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-11-10 12:21:04,122 INFO L728 BuchiCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-11-10 12:21:04,122 INFO L608 BuchiCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-11-10 12:21:04,122 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-10 12:21:04,122 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 48 transitions. [2018-11-10 12:21:04,123 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-10 12:21:04,123 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:21:04,123 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:21:04,123 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:21:04,123 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 12:21:04,124 INFO L793 eck$LassoCheckResult]: Stem: 685#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 683#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 684#L32 assume main_~c~1 % 256 != 0;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, 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; 686#L12 assume !!(f_~k~0 <= 1073741823); 690#L15-2 assume true; 661#L15 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 662#L15-2 assume true; 659#L15 assume !(f_~z~0 < f_~k~0); 660#L15-3 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 691#L3 assume !(__VERIFIER_assert_~cond == 0); 688#L3-2 assume { :end_inline___VERIFIER_assert } true; 689#L20-2 assume true; 671#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 672#L20 assume f_~c~0 % 256 != 0; 682#L21 [2018-11-10 12:21:04,124 INFO L795 eck$LassoCheckResult]: Loop: 682#L21 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 667#L20-2 assume true; 668#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 692#L20 assume f_~c~0 % 256 != 0; 682#L21 [2018-11-10 12:21:04,124 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:04,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1327540096, now seen corresponding path program 1 times [2018-11-10 12:21:04,124 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:04,124 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:04,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:04,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:21:04,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:04,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:04,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:04,133 INFO L82 PathProgramCache]: Analyzing trace with hash 2421209, now seen corresponding path program 1 times [2018-11-10 12:21:04,134 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:04,134 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:04,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:04,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:21:04,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:04,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:04,139 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:04,139 INFO L82 PathProgramCache]: Analyzing trace with hash 144044760, now seen corresponding path program 1 times [2018-11-10 12:21:04,139 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:04,139 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:04,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:04,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:21:04,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:04,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:04,174 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:21:04,174 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:21:04,174 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:21:04,175 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:21:04,175 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:21:04,175 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:21:04,175 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:21:04,175 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:21:04,175 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration6_Loop [2018-11-10 12:21:04,175 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:21:04,175 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:21:04,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:04,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:04,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:04,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:04,272 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:21:04,273 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:04,274 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:04,275 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:04,294 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:04,294 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:04,296 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:04,296 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:04,311 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:04,311 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=-191, ULTIMATE.start_f_~y~0=65} Honda state: {ULTIMATE.start_f_#t~nondet4=-191, ULTIMATE.start_f_~y~0=65} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:04,332 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:04,332 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:04,343 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:04,343 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-222, ULTIMATE.start_f_~c~0=-222} Honda state: {ULTIMATE.start_f_#t~nondet3=-222, ULTIMATE.start_f_~c~0=-222} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:04,363 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:04,363 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:04,383 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:21:04,383 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:04,407 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:04,407 INFO L446 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=-3}, {ULTIMATE.start_f_~z~0=3}, {ULTIMATE.start_f_~z~0=-1}] Lambdas: [2, 1, 1] Nus: [1, 0] [2018-11-10 12:21:04,531 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:21:04,531 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:21:04,531 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:21:04,531 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:21:04,531 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:21:04,531 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:21:04,531 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:21:04,531 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:21:04,531 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration6_Lasso [2018-11-10 12:21:04,531 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:21:04,531 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:21:04,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:04,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:04,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:04,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:04,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:04,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:04,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:04,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:04,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:04,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:04,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:04,698 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:21:04,698 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:04,712 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:04,712 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:04,732 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:21:04,732 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:04,766 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:04,766 INFO L446 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=2, ULTIMATE.start_f_~k~0=2} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=-1, ULTIMATE.start_f_~k~0=-1}, {ULTIMATE.start_f_~z~0=7, ULTIMATE.start_f_~k~0=7}, {ULTIMATE.start_f_~z~0=-7, ULTIMATE.start_f_~k~0=-6}] Lambdas: [8, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:04,783 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:04,783 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:04,789 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:04,789 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:04,807 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:04,807 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:04,814 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:04,814 INFO L446 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=-65, ULTIMATE.start_f_~y~0=191} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:04,832 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:04,832 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:04,834 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:04,834 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:04,852 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:04,852 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:04,854 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:04,854 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:04,873 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:04,873 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:04,875 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:04,875 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:04,894 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:04,894 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:04,897 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:04,897 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond=0, ULTIMATE.start___VERIFIER_assert_~cond=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond=1, ULTIMATE.start___VERIFIER_assert_~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:04,915 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:04,916 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:04,918 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:04,918 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:04,937 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:04,937 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:04,958 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:21:04,958 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:05,148 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 12:21:05,149 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:21:05,150 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:21:05,150 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:21:05,150 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:21:05,150 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:21:05,150 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:21:05,150 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:21:05,150 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:21:05,150 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration6_Lasso [2018-11-10 12:21:05,150 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:21:05,150 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:21:05,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,320 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:21:05,320 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:21:05,320 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 [2018-11-10 12:21:05,321 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:05,321 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:05,321 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:05,321 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:05,322 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:05,322 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:05,325 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:05,325 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 [2018-11-10 12:21:05,325 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:05,326 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:05,326 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:05,326 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:05,327 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:05,327 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:05,332 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:05,333 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 [2018-11-10 12:21:05,333 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:05,333 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:05,333 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:05,334 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:05,339 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:05,339 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:05,344 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:05,345 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 [2018-11-10 12:21:05,345 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:05,345 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:05,345 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:05,345 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:05,346 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:05,346 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:05,346 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:05,346 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:05,347 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:21:05,347 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:05,347 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:05,347 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:05,347 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:05,348 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:05,348 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:05,353 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:05,354 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:21:05,354 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:05,354 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:05,354 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:05,354 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:05,355 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:05,356 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:05,361 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:21:05,366 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-10 12:21:05,366 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 12:21:05,366 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:21:05,367 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 12:21:05,367 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:21:05,367 INFO L519 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] [2018-11-10 12:21:05,376 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 12:21:05,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:05,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:05,417 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:05,426 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:05,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:21:05,449 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 [2018-11-10 12:21:05,449 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 48 transitions. cyclomatic complexity: 15 Second operand 5 states. [2018-11-10 12:21:05,485 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 48 transitions. cyclomatic complexity: 15. Second operand 5 states. Result 52 states and 65 transitions. Complement of second has 7 states. [2018-11-10 12:21:05,487 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 [2018-11-10 12:21:05,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 12:21:05,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2018-11-10 12:21:05,487 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 14 letters. Loop has 4 letters. [2018-11-10 12:21:05,487 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:05,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 18 letters. Loop has 4 letters. [2018-11-10 12:21:05,488 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:05,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 14 letters. Loop has 8 letters. [2018-11-10 12:21:05,488 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:05,488 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 65 transitions. [2018-11-10 12:21:05,490 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-11-10 12:21:05,491 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 47 states and 58 transitions. [2018-11-10 12:21:05,491 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2018-11-10 12:21:05,491 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-11-10 12:21:05,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 58 transitions. [2018-11-10 12:21:05,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 12:21:05,491 INFO L705 BuchiCegarLoop]: Abstraction has 47 states and 58 transitions. [2018-11-10 12:21:05,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 58 transitions. [2018-11-10 12:21:05,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2018-11-10 12:21:05,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-10 12:21:05,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2018-11-10 12:21:05,494 INFO L728 BuchiCegarLoop]: Abstraction has 46 states and 57 transitions. [2018-11-10 12:21:05,494 INFO L608 BuchiCegarLoop]: Abstraction has 46 states and 57 transitions. [2018-11-10 12:21:05,494 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-10 12:21:05,494 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 57 transitions. [2018-11-10 12:21:05,499 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-11-10 12:21:05,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:21:05,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:21:05,500 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:21:05,500 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 12:21:05,500 INFO L793 eck$LassoCheckResult]: Stem: 869#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 865#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 866#L32 assume !(main_~c~1 % 256 != 0);assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, 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; 871#L12-1 assume !!(f_~k~0 <= 1073741823); 858#L15-6 assume true; 859#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 860#L15-6 assume true; 861#L15-4 assume !(f_~z~0 < f_~k~0); 854#L15-7 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 855#L3-3 assume !(__VERIFIER_assert_~cond == 0); 856#L3-5 assume { :end_inline___VERIFIER_assert } true; 857#L20-5 assume true; 842#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 843#L20-3 assume f_~c~0 % 256 != 0; 845#L21-1 [2018-11-10 12:21:05,500 INFO L795 eck$LassoCheckResult]: Loop: 845#L21-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 838#L20-5 assume true; 839#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 878#L20-3 assume f_~c~0 % 256 != 0; 845#L21-1 [2018-11-10 12:21:05,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:05,500 INFO L82 PathProgramCache]: Analyzing trace with hash 874260544, now seen corresponding path program 1 times [2018-11-10 12:21:05,501 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:05,501 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:05,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:05,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:21:05,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:05,511 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:05,511 INFO L82 PathProgramCache]: Analyzing trace with hash 4052761, now seen corresponding path program 1 times [2018-11-10 12:21:05,511 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:05,511 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:05,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:05,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:21:05,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:05,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:05,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:05,516 INFO L82 PathProgramCache]: Analyzing trace with hash -42088488, now seen corresponding path program 1 times [2018-11-10 12:21:05,516 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:05,516 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:05,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:05,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:21:05,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:05,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:05,550 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:21:05,551 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:21:05,551 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:21:05,551 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:21:05,551 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:21:05,551 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:21:05,551 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:21:05,551 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:21:05,551 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration7_Loop [2018-11-10 12:21:05,551 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:21:05,551 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:21:05,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,644 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:21:05,644 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:05,647 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:05,647 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:05,669 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:21:05,669 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:05,693 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:05,693 INFO L446 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=-3}, {ULTIMATE.start_f_~z~0=3}, {ULTIMATE.start_f_~z~0=-1}] Lambdas: [2, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:05,710 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:05,710 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:05,717 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:05,717 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-128, ULTIMATE.start_f_~c~0=-128} Honda state: {ULTIMATE.start_f_#t~nondet3=-128, ULTIMATE.start_f_~c~0=-128} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:05,734 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:05,734 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:05,753 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:05,753 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:05,755 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:05,755 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:05,763 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:05,763 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=255, ULTIMATE.start_f_~y~0=255} Honda state: {ULTIMATE.start_f_#t~nondet4=255, ULTIMATE.start_f_~y~0=255} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2018-11-10 12:21:05,843 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:21:05,843 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:21:05,843 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:21:05,843 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:21:05,843 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:21:05,843 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:21:05,844 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:21:05,844 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:21:05,844 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration7_Lasso [2018-11-10 12:21:05,844 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:21:05,844 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:21:05,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:05,976 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:21:05,976 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:05,978 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:05,978 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:06,000 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:06,000 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=0, ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_~c~0=-128, ULTIMATE.start_f_#t~nondet3=-128} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:06,017 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:06,018 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:06,020 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:06,020 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond=0, ULTIMATE.start___VERIFIER_assert_#in~cond=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:06,038 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:06,038 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:06,044 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:06,044 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:06,061 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:06,062 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:06,064 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:06,064 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:06,082 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:06,082 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:06,102 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:21:06,102 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:06,135 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:06,135 INFO L446 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=2, ULTIMATE.start_f_~z~0=2} Generalized eigenvectors: [{ULTIMATE.start_f_~k~0=0, ULTIMATE.start_f_~z~0=-8}, {ULTIMATE.start_f_~k~0=0, ULTIMATE.start_f_~z~0=0}, {ULTIMATE.start_f_~k~0=0, ULTIMATE.start_f_~z~0=7}] Lambdas: [1, 4, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:06,152 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:06,152 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:06,154 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:06,154 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:06,172 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:06,172 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:06,179 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:06,179 INFO L446 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=255, ULTIMATE.start_f_#t~nondet4=255} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:06,197 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:06,197 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:06,199 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:06,199 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:06,217 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:06,217 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:06,219 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:06,219 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:06,237 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:06,237 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:06,239 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:06,239 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:06,258 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:06,258 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:06,278 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:21:06,278 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:06,444 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 12:21:06,445 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:21:06,445 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:21:06,445 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:21:06,445 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:21:06,445 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:21:06,445 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:21:06,445 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:21:06,445 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:21:06,445 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration7_Lasso [2018-11-10 12:21:06,445 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:21:06,446 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:21:06,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:06,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:06,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:06,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:06,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:06,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:06,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:06,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:06,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:06,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:06,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:06,578 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:21:06,578 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:21:06,579 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 [2018-11-10 12:21:06,579 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:06,579 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:06,579 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:06,579 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:06,580 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:06,580 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:06,581 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:06,581 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 [2018-11-10 12:21:06,581 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:06,581 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:06,581 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:06,581 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:06,582 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:06,582 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:06,582 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:06,582 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:06,582 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 [2018-11-10 12:21:06,582 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:06,582 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:06,582 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:06,583 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:06,583 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:06,583 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:06,583 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:06,583 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:06,584 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 [2018-11-10 12:21:06,584 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:06,584 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:06,584 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:06,584 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:06,585 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:06,585 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:06,587 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:06,587 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 [2018-11-10 12:21:06,588 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:06,588 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:06,588 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:06,588 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:06,588 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:06,589 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:06,589 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:06,589 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:06,589 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 [2018-11-10 12:21:06,590 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:06,590 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:06,590 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:06,590 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:06,591 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:06,591 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:06,595 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:06,595 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 [2018-11-10 12:21:06,596 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:06,596 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:06,596 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:06,596 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:06,596 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:06,596 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:06,596 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:06,597 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:06,597 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 [2018-11-10 12:21:06,597 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:06,598 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:06,598 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:06,598 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:06,598 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:06,598 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:06,598 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:06,599 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:06,599 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 [2018-11-10 12:21:06,599 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:06,599 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:06,600 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:06,600 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:06,601 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:06,601 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:06,606 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:06,606 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 [2018-11-10 12:21:06,606 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:06,607 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:06,607 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:06,607 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:06,608 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:06,608 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:06,612 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:06,613 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 [2018-11-10 12:21:06,613 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:06,613 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:06,613 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:06,614 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:06,614 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:06,615 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:06,621 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:21:06,625 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 12:21:06,625 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 12:21:06,625 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:21:06,626 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 12:21:06,626 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:21:06,626 INFO L519 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] [2018-11-10 12:21:06,653 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 12:21:06,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:06,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:06,700 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:06,705 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:06,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:21:06,723 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 [2018-11-10 12:21:06,724 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 46 states and 57 transitions. cyclomatic complexity: 18 Second operand 5 states. [2018-11-10 12:21:06,760 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 46 states and 57 transitions. cyclomatic complexity: 18. Second operand 5 states. Result 59 states and 74 transitions. Complement of second has 7 states. [2018-11-10 12:21:06,760 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 [2018-11-10 12:21:06,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 12:21:06,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2018-11-10 12:21:06,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 14 letters. Loop has 4 letters. [2018-11-10 12:21:06,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:06,762 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 18 letters. Loop has 4 letters. [2018-11-10 12:21:06,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:06,762 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 14 letters. Loop has 8 letters. [2018-11-10 12:21:06,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:06,762 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 74 transitions. [2018-11-10 12:21:06,763 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-10 12:21:06,764 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 54 states and 67 transitions. [2018-11-10 12:21:06,764 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2018-11-10 12:21:06,764 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-11-10 12:21:06,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 67 transitions. [2018-11-10 12:21:06,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 12:21:06,764 INFO L705 BuchiCegarLoop]: Abstraction has 54 states and 67 transitions. [2018-11-10 12:21:06,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 67 transitions. [2018-11-10 12:21:06,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2018-11-10 12:21:06,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-11-10 12:21:06,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 66 transitions. [2018-11-10 12:21:06,767 INFO L728 BuchiCegarLoop]: Abstraction has 53 states and 66 transitions. [2018-11-10 12:21:06,767 INFO L608 BuchiCegarLoop]: Abstraction has 53 states and 66 transitions. [2018-11-10 12:21:06,767 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-11-10 12:21:06,767 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 66 transitions. [2018-11-10 12:21:06,768 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-10 12:21:06,768 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:21:06,768 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:21:06,768 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:21:06,769 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 12:21:06,769 INFO L793 eck$LassoCheckResult]: Stem: 1061#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1057#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1058#L32 assume main_~c~1 % 256 != 0;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, 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; 1062#L12 assume !!(f_~k~0 <= 1073741823); 1066#L15-2 assume true; 1034#L15 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1035#L15-2 assume true; 1032#L15 assume !(f_~z~0 < f_~k~0); 1033#L15-3 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1067#L3 assume !(__VERIFIER_assert_~cond == 0); 1064#L3-2 assume { :end_inline___VERIFIER_assert } true; 1065#L20-2 assume true; 1074#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1073#L20 assume f_~c~0 % 256 != 0; 1059#L21 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1060#L20-2 assume true; 1079#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1078#L20 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 1040#L20-2 [2018-11-10 12:21:06,769 INFO L795 eck$LassoCheckResult]: Loop: 1040#L20-2 assume true; 1041#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1044#L20 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 1040#L20-2 [2018-11-10 12:21:06,769 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:06,769 INFO L82 PathProgramCache]: Analyzing trace with hash 144044764, now seen corresponding path program 1 times [2018-11-10 12:21:06,769 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:06,769 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:06,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:06,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:21:06,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:06,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:06,780 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:06,780 INFO L82 PathProgramCache]: Analyzing trace with hash 67724, now seen corresponding path program 3 times [2018-11-10 12:21:06,780 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:06,780 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:06,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:06,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:21:06,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:06,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:06,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:06,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:06,785 INFO L82 PathProgramCache]: Analyzing trace with hash 565273553, now seen corresponding path program 2 times [2018-11-10 12:21:06,785 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:06,785 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:06,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:06,786 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:21:06,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:06,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:06,928 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:21:06,929 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:21:06,929 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:21:06,929 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:21:06,929 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:21:06,929 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:21:06,929 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:21:06,929 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:21:06,929 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration8_Lasso [2018-11-10 12:21:06,929 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:21:06,929 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:21:06,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:06,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:06,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:06,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:06,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:06,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:06,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:06,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:06,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:06,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:06,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:06,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:06,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:07,103 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:21:07,103 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:07,107 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:07,107 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:07,141 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:21:07,141 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:07,578 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 12:21:07,579 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:21:07,579 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:21:07,580 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:21:07,580 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:21:07,580 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:21:07,580 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:21:07,580 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:21:07,580 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:21:07,580 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration8_Lasso [2018-11-10 12:21:07,580 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:21:07,580 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:21:07,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:07,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:07,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:07,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:07,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:07,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:07,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:07,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:07,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:07,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:07,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:07,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:07,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:07,742 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:21:07,742 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:21:07,742 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 [2018-11-10 12:21:07,743 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:07,743 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:07,743 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:07,743 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:07,744 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:07,744 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:07,745 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:07,746 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 [2018-11-10 12:21:07,746 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:07,746 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:07,746 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:07,746 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:07,747 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:07,747 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:07,754 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:21:07,758 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-10 12:21:07,758 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 12:21:07,758 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:21:07,759 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 12:21:07,760 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:21:07,760 INFO L519 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] [2018-11-10 12:21:07,771 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 12:21:07,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:07,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:07,822 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:07,827 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:07,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:21:07,835 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 [2018-11-10 12:21:07,835 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states and 66 transitions. cyclomatic complexity: 21 Second operand 5 states. [2018-11-10 12:21:07,857 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 53 states and 66 transitions. cyclomatic complexity: 21. Second operand 5 states. Result 80 states and 97 transitions. Complement of second has 8 states. [2018-11-10 12:21:07,857 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 [2018-11-10 12:21:07,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 12:21:07,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2018-11-10 12:21:07,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 18 letters. Loop has 3 letters. [2018-11-10 12:21:07,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:07,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 21 letters. Loop has 3 letters. [2018-11-10 12:21:07,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:07,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 18 letters. Loop has 6 letters. [2018-11-10 12:21:07,859 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:07,859 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 97 transitions. [2018-11-10 12:21:07,860 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-10 12:21:07,860 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 68 states and 83 transitions. [2018-11-10 12:21:07,860 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2018-11-10 12:21:07,861 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2018-11-10 12:21:07,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 83 transitions. [2018-11-10 12:21:07,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 12:21:07,861 INFO L705 BuchiCegarLoop]: Abstraction has 68 states and 83 transitions. [2018-11-10 12:21:07,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 83 transitions. [2018-11-10 12:21:07,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 65. [2018-11-10 12:21:07,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-10 12:21:07,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 80 transitions. [2018-11-10 12:21:07,864 INFO L728 BuchiCegarLoop]: Abstraction has 65 states and 80 transitions. [2018-11-10 12:21:07,864 INFO L608 BuchiCegarLoop]: Abstraction has 65 states and 80 transitions. [2018-11-10 12:21:07,864 INFO L442 BuchiCegarLoop]: ======== Iteration 9============ [2018-11-10 12:21:07,864 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 80 transitions. [2018-11-10 12:21:07,865 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-10 12:21:07,865 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:21:07,865 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:21:07,866 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:21:07,866 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 12:21:07,866 INFO L793 eck$LassoCheckResult]: Stem: 1296#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1292#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1293#L32 assume !(main_~c~1 % 256 != 0);assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, 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; 1298#L12-1 assume !!(f_~k~0 <= 1073741823); 1282#L15-6 assume true; 1283#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1284#L15-6 assume true; 1285#L15-4 assume !(f_~z~0 < f_~k~0); 1278#L15-7 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1279#L3-3 assume !(__VERIFIER_assert_~cond == 0); 1280#L3-5 assume { :end_inline___VERIFIER_assert } true; 1281#L20-5 assume true; 1304#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1302#L20-3 assume f_~c~0 % 256 != 0; 1289#L21-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1290#L20-5 assume true; 1306#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1305#L20-3 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 1263#L20-5 [2018-11-10 12:21:07,866 INFO L795 eck$LassoCheckResult]: Loop: 1263#L20-5 assume true; 1264#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1267#L20-3 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 1263#L20-5 [2018-11-10 12:21:07,866 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:07,866 INFO L82 PathProgramCache]: Analyzing trace with hash -42088484, now seen corresponding path program 1 times [2018-11-10 12:21:07,866 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:07,866 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:07,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:07,867 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:21:07,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:07,875 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:07,875 INFO L82 PathProgramCache]: Analyzing trace with hash 120353, now seen corresponding path program 2 times [2018-11-10 12:21:07,876 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:07,876 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:07,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:07,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:21:07,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:07,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:07,879 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:07,879 INFO L82 PathProgramCache]: Analyzing trace with hash 272514150, now seen corresponding path program 2 times [2018-11-10 12:21:07,879 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:07,879 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:07,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:07,880 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:21:07,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:07,990 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:21:07,990 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:21:07,990 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:21:07,990 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:21:07,990 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:21:07,990 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:21:07,990 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:21:07,990 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:21:07,990 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration9_Lasso [2018-11-10 12:21:07,990 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:21:07,991 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:21:07,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:07,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:07,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:08,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:08,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:08,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:08,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:08,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:08,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:08,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:08,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:08,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:08,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:08,139 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:21:08,139 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:08,143 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:08,143 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:08,149 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:08,149 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:08,168 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:08,168 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:08,177 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:08,177 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=0, ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_~c~0=-256, ULTIMATE.start_f_#t~nondet3=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:08,196 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:08,196 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:08,218 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:21:08,218 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:08,796 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 12:21:08,798 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:21:08,798 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:21:08,798 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:21:08,798 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:21:08,798 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:21:08,798 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:21:08,798 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:21:08,798 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:21:08,798 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration9_Lasso [2018-11-10 12:21:08,798 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:21:08,798 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:21:08,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:08,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:08,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:08,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:08,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:08,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:08,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:08,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:08,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:08,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:08,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:08,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:08,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:08,965 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:21:08,966 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:21:08,966 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 [2018-11-10 12:21:08,966 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:08,967 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:08,967 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:08,967 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:08,968 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:08,968 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:08,969 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:08,970 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 [2018-11-10 12:21:08,970 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:08,970 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:08,970 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:08,970 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:08,970 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:08,970 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:08,970 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:08,971 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:08,971 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 [2018-11-10 12:21:08,971 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:08,971 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:08,971 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:08,971 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:08,972 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:08,972 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:08,973 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:08,973 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 [2018-11-10 12:21:08,974 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:08,974 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:08,974 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:08,974 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:08,975 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:08,975 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:08,981 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:21:08,984 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 12:21:08,984 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 12:21:08,984 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:21:08,985 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 12:21:08,985 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:21:08,985 INFO L519 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] [2018-11-10 12:21:09,015 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 12:21:09,040 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:09,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:09,052 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:09,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:09,058 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:09,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:21:09,073 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 [2018-11-10 12:21:09,073 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 65 states and 80 transitions. cyclomatic complexity: 25 Second operand 5 states. [2018-11-10 12:21:09,106 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 65 states and 80 transitions. cyclomatic complexity: 25. Second operand 5 states. Result 92 states and 111 transitions. Complement of second has 8 states. [2018-11-10 12:21:09,106 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 [2018-11-10 12:21:09,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 12:21:09,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2018-11-10 12:21:09,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 18 letters. Loop has 3 letters. [2018-11-10 12:21:09,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:09,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 21 letters. Loop has 3 letters. [2018-11-10 12:21:09,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:09,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 18 letters. Loop has 6 letters. [2018-11-10 12:21:09,108 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:09,108 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 111 transitions. [2018-11-10 12:21:09,109 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-10 12:21:09,109 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 80 states and 97 transitions. [2018-11-10 12:21:09,110 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2018-11-10 12:21:09,110 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2018-11-10 12:21:09,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 97 transitions. [2018-11-10 12:21:09,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 12:21:09,110 INFO L705 BuchiCegarLoop]: Abstraction has 80 states and 97 transitions. [2018-11-10 12:21:09,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states and 97 transitions. [2018-11-10 12:21:09,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 77. [2018-11-10 12:21:09,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-11-10 12:21:09,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 94 transitions. [2018-11-10 12:21:09,114 INFO L728 BuchiCegarLoop]: Abstraction has 77 states and 94 transitions. [2018-11-10 12:21:09,114 INFO L608 BuchiCegarLoop]: Abstraction has 77 states and 94 transitions. [2018-11-10 12:21:09,114 INFO L442 BuchiCegarLoop]: ======== Iteration 10============ [2018-11-10 12:21:09,114 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 94 transitions. [2018-11-10 12:21:09,115 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-10 12:21:09,115 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:21:09,115 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:21:09,116 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:21:09,116 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 12:21:09,116 INFO L793 eck$LassoCheckResult]: Stem: 1554#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1549#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1550#L32 assume main_~c~1 % 256 != 0;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, 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; 1555#L12 assume !!(f_~k~0 <= 1073741823); 1558#L15-2 assume true; 1516#L15 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1517#L15-2 assume true; 1514#L15 assume !(f_~z~0 < f_~k~0); 1515#L15-3 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1559#L3 assume !(__VERIFIER_assert_~cond == 0); 1557#L3-2 assume { :end_inline___VERIFIER_assert } true; 1529#L20-2 assume true; 1531#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1587#L20 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 1585#L20-2 assume true; 1534#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1535#L20 assume f_~c~0 % 256 != 0; 1545#L21 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1582#L20-2 assume true; 1581#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1570#L20 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 1571#L20-2 [2018-11-10 12:21:09,116 INFO L795 eck$LassoCheckResult]: Loop: 1571#L20-2 assume true; 1576#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1573#L20 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 1571#L20-2 [2018-11-10 12:21:09,116 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:09,116 INFO L82 PathProgramCache]: Analyzing trace with hash -2051539711, now seen corresponding path program 3 times [2018-11-10 12:21:09,116 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:09,116 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:09,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:09,117 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:21:09,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:09,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:09,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:09,126 INFO L82 PathProgramCache]: Analyzing trace with hash 67724, now seen corresponding path program 4 times [2018-11-10 12:21:09,127 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:09,127 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:09,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:09,127 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:21:09,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:09,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:09,131 INFO L82 PathProgramCache]: Analyzing trace with hash -34870388, now seen corresponding path program 4 times [2018-11-10 12:21:09,131 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:09,131 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:09,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:09,131 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:21:09,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:09,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:09,259 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:21:09,259 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:21:09,259 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:21:09,259 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:21:09,259 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:21:09,259 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:21:09,259 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:21:09,259 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:21:09,259 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration10_Lasso [2018-11-10 12:21:09,259 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:21:09,260 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:21:09,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:09,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:09,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:09,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:09,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:09,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:09,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:09,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:09,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:09,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:09,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:09,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:09,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:09,393 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:21:09,393 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:09,401 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:09,401 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:09,409 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:09,410 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=0, ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_~c~0=-256, ULTIMATE.start_f_#t~nondet3=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:09,437 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:09,437 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:09,442 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:09,442 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:09,460 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:09,460 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:09,478 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:09,478 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:09,487 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:09,487 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:09,507 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:21:09,508 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:09,992 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 12:21:09,993 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:21:09,994 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:21:09,994 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:21:09,994 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:21:09,994 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:21:09,994 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:21:09,994 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:21:09,994 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:21:09,994 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration10_Lasso [2018-11-10 12:21:09,994 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:21:09,994 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:21:09,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:09,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,126 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:21:10,126 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:21:10,126 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 [2018-11-10 12:21:10,127 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:10,127 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:10,127 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:10,127 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:10,127 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:10,127 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:10,127 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:10,128 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:10,128 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 [2018-11-10 12:21:10,129 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:10,129 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:10,129 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:10,129 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:10,129 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:10,129 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:10,131 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:10,132 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 [2018-11-10 12:21:10,132 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:10,132 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:10,132 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:10,132 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:10,133 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:10,133 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:10,134 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:10,134 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 [2018-11-10 12:21:10,135 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:10,135 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:10,135 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:10,135 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:10,136 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:10,136 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:10,141 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:21:10,147 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-10 12:21:10,147 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-11-10 12:21:10,148 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:21:10,148 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 12:21:10,149 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:21:10,149 INFO L519 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] [2018-11-10 12:21:10,167 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 12:21:10,189 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:10,197 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:10,205 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:10,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:21:10,216 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 [2018-11-10 12:21:10,216 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 77 states and 94 transitions. cyclomatic complexity: 29 Second operand 5 states. [2018-11-10 12:21:10,241 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 77 states and 94 transitions. cyclomatic complexity: 29. Second operand 5 states. Result 90 states and 107 transitions. Complement of second has 8 states. [2018-11-10 12:21:10,242 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 [2018-11-10 12:21:10,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 12:21:10,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2018-11-10 12:21:10,243 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 21 letters. Loop has 3 letters. [2018-11-10 12:21:10,243 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:10,243 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 12:21:10,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:10,265 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:10,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:10,270 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:10,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:21:10,277 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 [2018-11-10 12:21:10,277 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 77 states and 94 transitions. cyclomatic complexity: 29 Second operand 5 states. [2018-11-10 12:21:10,297 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 77 states and 94 transitions. cyclomatic complexity: 29. Second operand 5 states. Result 90 states and 107 transitions. Complement of second has 8 states. [2018-11-10 12:21:10,299 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 [2018-11-10 12:21:10,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 12:21:10,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2018-11-10 12:21:10,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 21 letters. Loop has 3 letters. [2018-11-10 12:21:10,299 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:10,300 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 12:21:10,314 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:10,321 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:10,325 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:10,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:21:10,333 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 [2018-11-10 12:21:10,333 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 77 states and 94 transitions. cyclomatic complexity: 29 Second operand 5 states. [2018-11-10 12:21:10,358 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 77 states and 94 transitions. cyclomatic complexity: 29. Second operand 5 states. Result 95 states and 114 transitions. Complement of second has 7 states. [2018-11-10 12:21:10,359 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 [2018-11-10 12:21:10,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 12:21:10,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2018-11-10 12:21:10,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 21 letters. Loop has 3 letters. [2018-11-10 12:21:10,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:10,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 24 letters. Loop has 3 letters. [2018-11-10 12:21:10,360 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:10,360 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 21 letters. Loop has 6 letters. [2018-11-10 12:21:10,360 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:10,360 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 95 states and 114 transitions. [2018-11-10 12:21:10,361 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 12:21:10,361 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 95 states to 40 states and 48 transitions. [2018-11-10 12:21:10,362 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2018-11-10 12:21:10,362 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2018-11-10 12:21:10,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 48 transitions. [2018-11-10 12:21:10,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 12:21:10,362 INFO L705 BuchiCegarLoop]: Abstraction has 40 states and 48 transitions. [2018-11-10 12:21:10,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 48 transitions. [2018-11-10 12:21:10,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-11-10 12:21:10,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-10 12:21:10,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2018-11-10 12:21:10,364 INFO L728 BuchiCegarLoop]: Abstraction has 40 states and 48 transitions. [2018-11-10 12:21:10,364 INFO L608 BuchiCegarLoop]: Abstraction has 40 states and 48 transitions. [2018-11-10 12:21:10,364 INFO L442 BuchiCegarLoop]: ======== Iteration 11============ [2018-11-10 12:21:10,365 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 48 transitions. [2018-11-10 12:21:10,365 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 12:21:10,365 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:21:10,365 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:21:10,365 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:21:10,366 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 12:21:10,366 INFO L793 eck$LassoCheckResult]: Stem: 2167#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2165#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 2166#L32 assume !(main_~c~1 % 256 != 0);assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, 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; 2168#L12-1 assume !!(f_~k~0 <= 1073741823); 2158#L15-6 assume true; 2159#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 2160#L15-6 assume true; 2161#L15-4 assume !(f_~z~0 < f_~k~0); 2155#L15-7 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 2156#L3-3 assume !(__VERIFIER_assert_~cond == 0); 2157#L3-5 assume { :end_inline___VERIFIER_assert } true; 2142#L20-5 assume true; 2144#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 2179#L20-3 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 2178#L20-5 assume true; 2147#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 2148#L20-3 assume f_~c~0 % 256 != 0; 2170#L21-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 2174#L20-5 assume true; 2173#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 2171#L20-3 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 2152#L20-5 [2018-11-10 12:21:10,366 INFO L795 eck$LassoCheckResult]: Loop: 2152#L20-5 assume true; 2172#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 2151#L20-3 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 2152#L20-5 [2018-11-10 12:21:10,366 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:10,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1950668182, now seen corresponding path program 3 times [2018-11-10 12:21:10,366 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:10,366 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:10,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:10,367 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:21:10,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:10,377 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:10,377 INFO L82 PathProgramCache]: Analyzing trace with hash 120353, now seen corresponding path program 3 times [2018-11-10 12:21:10,377 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:10,377 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:10,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:10,378 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:21:10,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:10,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:10,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:10,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1448385644, now seen corresponding path program 4 times [2018-11-10 12:21:10,381 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:21:10,382 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:21:10,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:10,382 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:21:10,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:21:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:21:10,532 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:21:10,532 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:21:10,532 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:21:10,532 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:21:10,532 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:21:10,532 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:21:10,533 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:21:10,533 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:21:10,533 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration11_Lasso [2018-11-10 12:21:10,533 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:21:10,533 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:21:10,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:10,714 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:21:10,714 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:10,717 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:10,717 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:10,738 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:10,738 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~k~0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:10,742 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:10,742 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:10,751 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:10,751 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=0, ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_~c~0=0, ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:10,770 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:10,771 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:10,773 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:10,773 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:10,792 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:10,792 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:10,798 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:10,798 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:10,816 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:10,816 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:10,835 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:10,835 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:10,838 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:10,838 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:10,840 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:10,841 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:10,859 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:10,859 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:10,862 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:10,862 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:10,880 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:10,881 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:10,883 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:10,883 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:10,901 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:10,902 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:10,904 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:10,904 INFO L446 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_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:10,922 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:10,923 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:10,925 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:21:10,926 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond=0, ULTIMATE.start___VERIFIER_assert_#in~cond=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:10,944 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:21:10,945 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_46d8ea2e-bb62-4d09-ad35-33f346c3b539/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 [2018-11-10 12:21:10,965 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:21:10,965 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:21:11,413 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 12:21:11,414 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:21:11,414 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:21:11,414 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:21:11,414 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:21:11,414 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:21:11,414 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:21:11,414 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:21:11,414 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:21:11,414 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration11_Lasso [2018-11-10 12:21:11,414 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:21:11,415 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:21:11,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:11,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:11,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:11,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:11,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:11,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:11,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:11,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:11,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:11,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:11,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:11,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:11,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:21:11,555 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:21:11,556 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:21:11,556 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 [2018-11-10 12:21:11,556 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:11,556 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:11,556 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:11,557 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:11,557 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:11,557 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:11,559 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:11,559 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 [2018-11-10 12:21:11,559 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:11,559 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:11,559 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:11,560 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:11,560 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:11,561 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:11,563 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:11,563 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 [2018-11-10 12:21:11,563 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:11,563 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:11,563 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:11,564 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:11,564 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:11,564 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:11,564 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:11,564 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:11,565 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 [2018-11-10 12:21:11,565 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:11,565 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:11,565 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:11,565 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:11,565 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:11,565 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:11,565 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:11,566 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:11,566 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 [2018-11-10 12:21:11,566 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:11,566 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:11,566 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:11,566 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:11,567 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:11,567 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:11,568 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:11,568 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 [2018-11-10 12:21:11,569 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:11,569 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:11,569 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:11,569 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:11,570 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:11,570 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:11,571 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:11,572 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 [2018-11-10 12:21:11,572 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:11,572 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:11,572 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:11,572 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:11,572 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:11,572 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:11,573 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:11,573 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:11,573 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 [2018-11-10 12:21:11,573 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:11,574 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:11,574 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:11,574 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:11,574 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:11,574 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:11,574 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:11,575 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:11,575 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 [2018-11-10 12:21:11,575 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:11,575 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:21:11,575 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:11,575 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:11,576 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:11,576 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:21:11,576 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:21:11,576 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:11,576 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 [2018-11-10 12:21:11,577 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:11,577 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:11,577 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:11,577 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:11,577 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:11,578 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:11,579 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:21:11,579 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 [2018-11-10 12:21:11,580 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:21:11,580 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:21:11,580 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:21:11,580 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:21:11,581 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:21:11,581 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:21:11,586 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:21:11,590 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-10 12:21:11,590 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-11-10 12:21:11,591 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:21:11,591 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 12:21:11,592 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:21:11,592 INFO L519 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] [2018-11-10 12:21:11,631 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 12:21:11,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:11,672 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:11,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:11,677 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:11,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:21:11,688 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 [2018-11-10 12:21:11,688 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 48 transitions. cyclomatic complexity: 14 Second operand 5 states. [2018-11-10 12:21:11,704 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 48 transitions. cyclomatic complexity: 14. Second operand 5 states. Result 53 states and 61 transitions. Complement of second has 8 states. [2018-11-10 12:21:11,704 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 [2018-11-10 12:21:11,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 12:21:11,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2018-11-10 12:21:11,705 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 21 letters. Loop has 3 letters. [2018-11-10 12:21:11,705 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:11,705 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 12:21:11,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:11,725 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:11,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:11,730 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:11,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:21:11,737 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 [2018-11-10 12:21:11,737 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 48 transitions. cyclomatic complexity: 14 Second operand 5 states. [2018-11-10 12:21:11,755 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 48 transitions. cyclomatic complexity: 14. Second operand 5 states. Result 53 states and 61 transitions. Complement of second has 8 states. [2018-11-10 12:21:11,755 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 [2018-11-10 12:21:11,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 12:21:11,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2018-11-10 12:21:11,756 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 21 letters. Loop has 3 letters. [2018-11-10 12:21:11,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:11,756 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 12:21:11,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:21:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:11,775 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:21:11,780 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:21:11,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:21:11,789 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 [2018-11-10 12:21:11,789 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 48 transitions. cyclomatic complexity: 14 Second operand 5 states. [2018-11-10 12:21:11,825 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 48 transitions. cyclomatic complexity: 14. Second operand 5 states. Result 58 states and 68 transitions. Complement of second has 7 states. [2018-11-10 12:21:11,826 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 [2018-11-10 12:21:11,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 12:21:11,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2018-11-10 12:21:11,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 21 letters. Loop has 3 letters. [2018-11-10 12:21:11,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:11,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 24 letters. Loop has 3 letters. [2018-11-10 12:21:11,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:11,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 21 letters. Loop has 6 letters. [2018-11-10 12:21:11,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:21:11,828 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 68 transitions. [2018-11-10 12:21:11,828 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 12:21:11,828 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 0 states and 0 transitions. [2018-11-10 12:21:11,828 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 12:21:11,828 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 12:21:11,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 12:21:11,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 12:21:11,829 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 12:21:11,829 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 12:21:11,829 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 12:21:11,829 INFO L442 BuchiCegarLoop]: ======== Iteration 12============ [2018-11-10 12:21:11,829 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-10 12:21:11,829 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 12:21:11,829 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-10 12:21:11,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 12:21:11 BoogieIcfgContainer [2018-11-10 12:21:11,836 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 12:21:11,837 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:21:11,837 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:21:11,837 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:21:11,838 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:20:36" (3/4) ... [2018-11-10 12:21:11,841 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 12:21:11,841 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:21:11,842 INFO L168 Benchmark]: Toolchain (without parser) took 35562.83 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 361.8 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -156.0 MB). Peak memory consumption was 205.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:21:11,843 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:21:11,844 INFO L168 Benchmark]: CACSL2BoogieTranslator took 157.46 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 947.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 12:21:11,844 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.42 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:21:11,845 INFO L168 Benchmark]: Boogie Preprocessor took 14.21 ms. Allocated memory is still 1.0 GB. Free memory is still 944.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:21:11,845 INFO L168 Benchmark]: RCFGBuilder took 228.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -190.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-11-10 12:21:11,845 INFO L168 Benchmark]: BuchiAutomizer took 35130.17 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 209.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.5 MB). Peak memory consumption was 228.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:21:11,847 INFO L168 Benchmark]: Witness Printer took 4.42 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:21:11,849 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 157.46 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 947.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.42 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.21 ms. Allocated memory is still 1.0 GB. Free memory is still 944.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 228.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -190.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 35130.17 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 209.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.5 MB). Peak memory consumption was 228.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.42 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 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 11 terminating modules (1 trivial, 8 deterministic, 2 nondeterministic). One deterministic module has affine ranking function -1 * z + k and consists of 5 locations. One deterministic module has affine ranking function -1 * z + k and consists of 4 locations. One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function x + -1 * d and consists of 5 locations. One deterministic module has affine ranking function x + -1 * d and consists of 5 locations. One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function y and consists of 5 locations. One nondeterministic module has affine ranking function y and consists of 5 locations. One nondeterministic module has affine ranking function y and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.0s and 12 iterations. TraceHistogramMax:3. Analysis of lassos took 33.7s. Construction of modules took 0.1s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 10. Automata minimization 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 28 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 77 states and ocurred in iteration 9. Nontrivial modules had stage [8, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 356 SDtfs, 433 SDslu, 161 SDs, 0 SdLazy, 167 SolverSat, 68 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN1 SILU0 SILI0 SILT0 lasso10 LassoPreprocessingBenchmarks: Lassos: inital55 mio100 ax100 hnf96 lsp39 ukn100 mio100 lsp100 div361 bol100 ite100 ukn100 eq146 hnf43 smp88 dnf100 smp100 tf102 neg98 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 90ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 53 LassoNonterminationAnalysisSatUnbounded: 4 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 27.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...