./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/loops/trex01_true-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_352cfedc-f900-419b-a280-470ba4174780/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/trex01_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 ac73664c6b6c540fa41a6c75f0a1d02ae5fcc2e0 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 06:08:23,949 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 06:08:23,951 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 06:08:23,959 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 06:08:23,960 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 06:08:23,960 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 06:08:23,961 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 06:08:23,969 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 06:08:23,970 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 06:08:23,971 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 06:08:23,972 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 06:08:23,972 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 06:08:23,973 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 06:08:23,973 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 06:08:23,975 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 06:08:23,975 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 06:08:23,976 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 06:08:23,977 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 06:08:23,979 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 06:08:23,980 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 06:08:23,981 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 06:08:23,982 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 06:08:23,984 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 06:08:23,984 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 06:08:23,984 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 06:08:23,985 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 06:08:23,987 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 06:08:23,987 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 06:08:23,988 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 06:08:23,989 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 06:08:23,989 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 06:08:23,990 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 06:08:23,990 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 06:08:23,990 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 06:08:23,991 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 06:08:23,991 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 06:08:23,992 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-10-27 06:08:24,004 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 06:08:24,005 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 06:08:24,005 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 06:08:24,006 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 06:08:24,006 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 06:08:24,006 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-10-27 06:08:24,006 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-10-27 06:08:24,007 INFO L133 SettingsManager]: * Use old map elimination=false [2018-10-27 06:08:24,007 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-10-27 06:08:24,007 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-10-27 06:08:24,007 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-10-27 06:08:24,007 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 06:08:24,008 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 06:08:24,008 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 06:08:24,008 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 06:08:24,008 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 06:08:24,008 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 06:08:24,008 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-10-27 06:08:24,009 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-10-27 06:08:24,009 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-10-27 06:08:24,009 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 06:08:24,009 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 06:08:24,009 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-10-27 06:08:24,010 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-10-27 06:08:24,012 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 06:08:24,012 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 06:08:24,012 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-10-27 06:08:24,012 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 06:08:24,013 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 06:08:24,013 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-10-27 06:08:24,013 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-27 06:08:24,014 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_352cfedc-f900-419b-a280-470ba4174780/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 -> ac73664c6b6c540fa41a6c75f0a1d02ae5fcc2e0 [2018-10-27 06:08:24,048 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 06:08:24,059 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 06:08:24,063 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 06:08:24,064 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 06:08:24,064 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 06:08:24,065 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/bin-2019/uautomizer/../../sv-benchmarks/c/loops/trex01_true-unreach-call_true-termination.i [2018-10-27 06:08:24,105 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/bin-2019/uautomizer/data/3b4104bde/69bbc92778f2454a9f402c30ea8c4ac8/FLAGc92c806f0 [2018-10-27 06:08:24,468 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 06:08:24,468 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/sv-benchmarks/c/loops/trex01_true-unreach-call_true-termination.i [2018-10-27 06:08:24,473 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/bin-2019/uautomizer/data/3b4104bde/69bbc92778f2454a9f402c30ea8c4ac8/FLAGc92c806f0 [2018-10-27 06:08:24,483 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/bin-2019/uautomizer/data/3b4104bde/69bbc92778f2454a9f402c30ea8c4ac8 [2018-10-27 06:08:24,485 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 06:08:24,486 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 06:08:24,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 06:08:24,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 06:08:24,492 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 06:08:24,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:08:24" (1/1) ... [2018-10-27 06:08:24,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54241dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:24, skipping insertion in model container [2018-10-27 06:08:24,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:08:24" (1/1) ... [2018-10-27 06:08:24,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 06:08:24,520 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 06:08:24,637 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:08:24,639 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 06:08:24,653 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:08:24,663 INFO L193 MainTranslator]: Completed translation [2018-10-27 06:08:24,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:24 WrapperNode [2018-10-27 06:08:24,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 06:08:24,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 06:08:24,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 06:08:24,664 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 06:08:24,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:24" (1/1) ... [2018-10-27 06:08:24,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:24" (1/1) ... [2018-10-27 06:08:24,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 06:08:24,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 06:08:24,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 06:08:24,693 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 06:08:24,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:24" (1/1) ... [2018-10-27 06:08:24,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:24" (1/1) ... [2018-10-27 06:08:24,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:24" (1/1) ... [2018-10-27 06:08:24,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:24" (1/1) ... [2018-10-27 06:08:24,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:24" (1/1) ... [2018-10-27 06:08:24,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:24" (1/1) ... [2018-10-27 06:08:24,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:24" (1/1) ... [2018-10-27 06:08:24,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 06:08:24,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 06:08:24,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 06:08:24,711 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 06:08:24,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:24,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 06:08:24,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 06:08:25,275 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 06:08:25,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:08:25 BoogieIcfgContainer [2018-10-27 06:08:25,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 06:08:25,276 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-10-27 06:08:25,276 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-10-27 06:08:25,280 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-10-27 06:08:25,280 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:08:25,281 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.10 06:08:24" (1/3) ... [2018-10-27 06:08:25,281 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@72cf6a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:08:25, skipping insertion in model container [2018-10-27 06:08:25,282 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:08:25,282 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:08:24" (2/3) ... [2018-10-27 06:08:25,282 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@72cf6a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:08:25, skipping insertion in model container [2018-10-27 06:08:25,282 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:08:25,282 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:08:25" (3/3) ... [2018-10-27 06:08:25,284 INFO L375 chiAutomizerObserver]: Analyzing ICFG trex01_true-unreach-call_true-termination.i [2018-10-27 06:08:25,338 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 06:08:25,339 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-10-27 06:08:25,339 INFO L375 BuchiCegarLoop]: Hoare is false [2018-10-27 06:08:25,339 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-10-27 06:08:25,339 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 06:08:25,339 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 06:08:25,339 INFO L379 BuchiCegarLoop]: Difference is false [2018-10-27 06:08:25,339 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 06:08:25,340 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-10-27 06:08:25,357 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states. [2018-10-27 06:08:25,384 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2018-10-27 06:08:25,384 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:08:25,384 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:08:25,390 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-10-27 06:08:25,390 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-10-27 06:08:25,391 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-10-27 06:08:25,391 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states. [2018-10-27 06:08:25,393 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2018-10-27 06:08:25,393 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:08:25,393 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:08:25,393 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-10-27 06:08:25,393 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-10-27 06:08:25,401 INFO L793 eck$LassoCheckResult]: Stem: 31#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 21#L36true assume main_~c~1 % 256 != 0;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 37#L13true assume !!(f_~k~0 <= 1073741823); 17#L16-3true [2018-10-27 06:08:25,402 INFO L795 eck$LassoCheckResult]: Loop: 17#L16-3true assume true; 3#L16-1true assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 17#L16-3true [2018-10-27 06:08:25,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:25,407 INFO L82 PathProgramCache]: Analyzing trace with hash 925609, now seen corresponding path program 1 times [2018-10-27 06:08:25,409 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:25,409 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:25,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:25,455 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:25,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:25,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:25,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1447, now seen corresponding path program 1 times [2018-10-27 06:08:25,503 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:25,503 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:25,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:25,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:25,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:25,510 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:25,510 INFO L82 PathProgramCache]: Analyzing trace with hash 889510735, now seen corresponding path program 1 times [2018-10-27 06:08:25,510 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:25,510 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:25,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:25,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:25,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:25,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:25,684 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:25,685 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:25,685 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:25,685 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:25,686 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:08:25,686 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:25,686 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:25,686 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:25,686 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration1_Lasso [2018-10-27 06:08:25,686 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:25,687 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:25,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:25,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:25,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:25,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:25,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:25,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:25,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:25,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:25,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:25,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:26,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:26,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:26,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:26,284 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:26,285 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:26,288 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:26,289 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:26,293 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:26,293 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_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:26,311 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:26,311 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:26,332 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:26,332 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_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:26,349 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:26,349 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:26,351 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:26,351 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_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:26,369 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:26,369 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:26,371 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:26,371 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_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:26,397 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:26,397 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:26,400 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:26,400 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_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:26,417 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:26,417 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:26,436 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:26,437 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:26,457 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:26,457 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:26,464 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:26,464 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=105} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:26,482 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:26,482 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:26,484 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:26,484 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_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:26,502 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:26,502 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:26,504 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:26,504 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_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:26,521 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:26,521 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:26,543 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:08:26,543 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:38,580 INFO L448 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-10-27 06:08:38,584 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:38,584 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:38,584 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:38,584 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:38,584 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:08:38,584 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:38,584 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:38,584 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:38,584 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration1_Lasso [2018-10-27 06:08:38,585 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:38,585 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:38,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:38,950 WARN L179 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2018-10-27 06:08:39,086 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-10-27 06:08:39,306 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-10-27 06:08:39,356 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:39,359 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:08:39,361 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 [2018-10-27 06:08:39,362 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:39,362 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:39,362 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:39,362 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:39,363 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:39,364 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:39,364 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:39,367 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:39,368 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 [2018-10-27 06:08:39,368 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:39,368 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:39,368 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:39,369 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:39,369 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:39,369 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:39,369 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:39,370 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:39,370 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 [2018-10-27 06:08:39,371 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:39,371 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:39,371 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:39,371 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:39,371 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:39,372 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:39,372 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:39,373 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:39,373 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:39,374 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:39,374 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:39,374 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:39,374 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:39,374 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:39,375 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:39,375 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:39,375 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:39,376 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 [2018-10-27 06:08:39,376 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:39,376 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:39,377 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:39,377 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:39,377 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:39,377 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:39,377 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:39,378 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:39,379 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:39,379 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:39,379 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:39,380 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:39,380 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:39,382 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:39,382 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:39,392 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:39,392 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 [2018-10-27 06:08:39,392 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:39,393 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:39,393 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:39,393 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:39,397 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:39,397 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:39,435 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:08:39,462 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-10-27 06:08:39,462 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-10-27 06:08:39,464 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:08:39,467 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-10-27 06:08:39,467 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:08:39,468 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] [2018-10-27 06:08:39,494 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-10-27 06:08:39,539 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:39,563 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:39,572 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:39,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:08:39,582 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 [2018-10-27 06:08:39,584 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states. Second operand 4 states. [2018-10-27 06:08:39,705 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states.. Second operand 4 states. Result 108 states and 150 transitions. Complement of second has 7 states. [2018-10-27 06:08:39,707 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 [2018-10-27 06:08:39,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-10-27 06:08:39,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 112 transitions. [2018-10-27 06:08:39,712 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 112 transitions. Stem has 4 letters. Loop has 2 letters. [2018-10-27 06:08:39,713 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:39,713 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 112 transitions. Stem has 6 letters. Loop has 2 letters. [2018-10-27 06:08:39,713 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:39,713 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 112 transitions. Stem has 4 letters. Loop has 4 letters. [2018-10-27 06:08:39,713 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:39,717 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 150 transitions. [2018-10-27 06:08:39,724 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 16 [2018-10-27 06:08:39,728 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 39 states and 47 transitions. [2018-10-27 06:08:39,729 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2018-10-27 06:08:39,729 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2018-10-27 06:08:39,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 47 transitions. [2018-10-27 06:08:39,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:08:39,730 INFO L705 BuchiCegarLoop]: Abstraction has 39 states and 47 transitions. [2018-10-27 06:08:39,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 47 transitions. [2018-10-27 06:08:39,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 31. [2018-10-27 06:08:39,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-10-27 06:08:39,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2018-10-27 06:08:39,752 INFO L728 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2018-10-27 06:08:39,752 INFO L608 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2018-10-27 06:08:39,752 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-10-27 06:08:39,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 37 transitions. [2018-10-27 06:08:39,753 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2018-10-27 06:08:39,753 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:08:39,754 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:08:39,754 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-10-27 06:08:39,754 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-10-27 06:08:39,754 INFO L793 eck$LassoCheckResult]: Stem: 227#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 211#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 212#L36 assume !(main_~c~1 % 256 != 0);assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 222#L13-1 assume !!(f_~k~0 <= 1073741823); 215#L16-8 [2018-10-27 06:08:39,754 INFO L795 eck$LassoCheckResult]: Loop: 215#L16-8 assume true; 213#L16-6 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 215#L16-8 [2018-10-27 06:08:39,755 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:39,755 INFO L82 PathProgramCache]: Analyzing trace with hash 927849, now seen corresponding path program 1 times [2018-10-27 06:08:39,755 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:39,755 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:39,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:39,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:39,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:39,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:39,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:39,764 INFO L82 PathProgramCache]: Analyzing trace with hash 3687, now seen corresponding path program 1 times [2018-10-27 06:08:39,764 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:39,764 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:39,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:39,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:39,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:39,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:39,769 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:39,769 INFO L82 PathProgramCache]: Analyzing trace with hash 891665615, now seen corresponding path program 1 times [2018-10-27 06:08:39,769 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:39,769 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:39,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:39,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:39,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:39,849 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:39,849 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:39,849 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:39,849 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:39,849 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:08:39,849 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:39,849 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:39,849 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:39,850 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration2_Lasso [2018-10-27 06:08:39,850 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:39,850 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:39,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:39,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:40,025 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:40,026 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:40,029 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:40,029 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:40,034 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:40,034 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:40,051 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:40,051 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:40,053 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:40,054 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_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:40,071 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:40,071 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:40,084 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:40,085 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_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:40,102 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:40,103 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:40,109 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:40,109 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_352cfedc-f900-419b-a280-470ba4174780/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) [2018-10-27 06:08:40,139 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:40,139 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:40,163 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:40,163 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_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:40,189 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:40,189 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:40,191 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:40,191 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_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:40,209 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:40,209 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:40,212 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:40,212 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_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:40,228 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:40,229 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:40,249 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:08:40,249 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:52,281 INFO L448 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-10-27 06:08:52,284 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:52,284 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:52,284 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:52,284 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:52,284 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:08:52,284 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:52,284 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:52,285 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:52,285 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration2_Lasso [2018-10-27 06:08:52,285 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:52,285 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:52,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:52,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:52,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:52,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:52,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:52,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:52,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:52,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:52,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:52,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:52,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:52,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:52,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:52,407 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:52,407 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:08:52,407 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:52,408 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:52,408 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:52,408 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:52,408 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:52,408 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:52,409 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:52,409 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:52,409 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:52,422 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 [2018-10-27 06:08:52,422 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:52,423 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:52,423 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:52,423 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:52,423 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:52,423 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:52,423 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:52,424 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:52,424 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:08:52,425 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:52,425 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:08:52,425 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:52,425 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:52,425 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:52,425 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:08:52,425 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:08:52,431 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:08:52,431 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 [2018-10-27 06:08:52,431 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:52,432 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:52,432 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:52,432 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:52,443 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:52,443 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:52,527 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:08:52,556 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2018-10-27 06:08:52,556 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-10-27 06:08:52,557 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:08:52,565 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-10-27 06:08:52,565 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:08:52,565 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~k~0, ULTIMATE.start_f_~z~0) = 1*ULTIMATE.start_f_~k~0 - 1*ULTIMATE.start_f_~z~0 Supporting invariants [1*ULTIMATE.start_f_~z~0 - 1 >= 0] [2018-10-27 06:08:52,591 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-10-27 06:08:52,766 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:52,778 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:52,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:52,782 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:52,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:08:52,783 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 [2018-10-27 06:08:52,783 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 37 transitions. cyclomatic complexity: 10 Second operand 4 states. [2018-10-27 06:08:52,842 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 37 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 51 states and 61 transitions. Complement of second has 6 states. [2018-10-27 06:08:52,843 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 [2018-10-27 06:08:52,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-10-27 06:08:52,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2018-10-27 06:08:52,844 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 4 letters. Loop has 2 letters. [2018-10-27 06:08:52,844 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:52,844 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 6 letters. Loop has 2 letters. [2018-10-27 06:08:52,844 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:52,844 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 38 transitions. Stem has 4 letters. Loop has 4 letters. [2018-10-27 06:08:52,845 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:52,845 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 61 transitions. [2018-10-27 06:08:52,846 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2018-10-27 06:08:52,847 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 41 states and 50 transitions. [2018-10-27 06:08:52,847 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2018-10-27 06:08:52,847 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2018-10-27 06:08:52,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 50 transitions. [2018-10-27 06:08:52,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:08:52,847 INFO L705 BuchiCegarLoop]: Abstraction has 41 states and 50 transitions. [2018-10-27 06:08:52,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 50 transitions. [2018-10-27 06:08:52,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 33. [2018-10-27 06:08:52,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-10-27 06:08:52,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2018-10-27 06:08:52,853 INFO L728 BuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2018-10-27 06:08:52,853 INFO L608 BuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2018-10-27 06:08:52,853 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-10-27 06:08:52,853 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 40 transitions. [2018-10-27 06:08:52,854 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-10-27 06:08:52,854 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:08:52,854 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:08:52,854 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:08:52,854 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:08:52,855 INFO L793 eck$LassoCheckResult]: Stem: 360#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 342#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 343#L36 assume main_~c~1 % 256 != 0;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 353#L13 assume !!(f_~k~0 <= 1073741823); 350#L16-3 assume true; 329#L16-1 assume !(f_~z~0 < f_~k~0); 330#L16-4 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 349#L4 assume !(__VERIFIER_assert_~cond == 0); 361#L4-2 assume { :end_inline___VERIFIER_assert } true; 337#L18 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 338#L20 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 341#L21 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 348#L24-2 [2018-10-27 06:08:52,855 INFO L795 eck$LassoCheckResult]: Loop: 348#L24-2 assume true; 358#L22-1 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 359#L24 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 348#L24-2 [2018-10-27 06:08:52,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:52,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1819348447, now seen corresponding path program 1 times [2018-10-27 06:08:52,855 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:52,855 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:52,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:52,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:52,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:52,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:52,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:52,871 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:52,871 INFO L82 PathProgramCache]: Analyzing trace with hash 84605, now seen corresponding path program 1 times [2018-10-27 06:08:52,872 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:52,872 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:52,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:52,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:52,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:52,883 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:52,883 INFO L82 PathProgramCache]: Analyzing trace with hash 2017331167, now seen corresponding path program 1 times [2018-10-27 06:08:52,883 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:52,883 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:52,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:52,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:52,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:52,995 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:52,995 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:52,995 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:52,995 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:52,995 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:08:52,995 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:52,995 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:52,996 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:52,996 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration3_Lasso [2018-10-27 06:08:52,996 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:52,996 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:52,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:53,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:53,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:53,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:53,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:53,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:53,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:53,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:53,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:53,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:53,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:53,218 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:53,219 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:53,223 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:53,224 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:53,225 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:53,226 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_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:53,243 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:53,243 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:53,266 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:08:53,270 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:58,338 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:08:58,340 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:58,341 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:58,341 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:58,341 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:58,341 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:08:58,341 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:58,341 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:58,341 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:58,341 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration3_Lasso [2018-10-27 06:08:58,341 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:58,341 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:58,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:58,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:58,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:58,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:58,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:58,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:58,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:58,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:58,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:58,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:58,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:58,548 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:58,548 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:08:58,548 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 [2018-10-27 06:08:58,549 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:08:58,549 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:08:58,549 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:08:58,549 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:08:58,551 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:08:58,551 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:08:58,565 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:08:58,572 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-10-27 06:08:58,573 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-10-27 06:08:58,573 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:08:58,575 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-10-27 06:08:58,575 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:08:58,575 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] [2018-10-27 06:08:58,614 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-10-27 06:08:58,675 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:58,683 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:58,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:08:58,696 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:08:58,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:08:58,708 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 [2018-10-27 06:08:58,708 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 11 Second operand 5 states. [2018-10-27 06:08:58,733 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 11. Second operand 5 states. Result 41 states and 50 transitions. Complement of second has 8 states. [2018-10-27 06:08:58,734 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 [2018-10-27 06:08:58,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:08:58,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2018-10-27 06:08:58,735 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 12 letters. Loop has 3 letters. [2018-10-27 06:08:58,735 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:58,735 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 15 letters. Loop has 3 letters. [2018-10-27 06:08:58,735 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:58,735 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 12 letters. Loop has 6 letters. [2018-10-27 06:08:58,735 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:08:58,735 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 50 transitions. [2018-10-27 06:08:58,736 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-10-27 06:08:58,737 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 40 states and 49 transitions. [2018-10-27 06:08:58,737 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2018-10-27 06:08:58,737 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2018-10-27 06:08:58,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 49 transitions. [2018-10-27 06:08:58,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:08:58,737 INFO L705 BuchiCegarLoop]: Abstraction has 40 states and 49 transitions. [2018-10-27 06:08:58,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 49 transitions. [2018-10-27 06:08:58,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2018-10-27 06:08:58,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-10-27 06:08:58,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-10-27 06:08:58,739 INFO L728 BuchiCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-10-27 06:08:58,739 INFO L608 BuchiCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-10-27 06:08:58,739 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-10-27 06:08:58,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 48 transitions. [2018-10-27 06:08:58,740 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-10-27 06:08:58,740 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:08:58,740 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:08:58,740 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:08:58,740 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:08:58,741 INFO L793 eck$LassoCheckResult]: Stem: 517#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 496#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 497#L36 assume !(main_~c~1 % 256 != 0);assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 509#L13-1 assume !!(f_~k~0 <= 1073741823); 511#L16-8 assume true; 498#L16-6 assume !(f_~z~0 < f_~k~0); 499#L16-9 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 510#L4-3 assume !(__VERIFIER_assert_~cond == 0); 512#L4-5 assume { :end_inline___VERIFIER_assert } true; 487#L18-1 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 488#L20-2 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 491#L21-2 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 494#L24-5 [2018-10-27 06:08:58,741 INFO L795 eck$LassoCheckResult]: Loop: 494#L24-5 assume true; 492#L22-4 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 493#L24-3 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 494#L24-5 [2018-10-27 06:08:58,741 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:58,741 INFO L82 PathProgramCache]: Analyzing trace with hash 489773471, now seen corresponding path program 1 times [2018-10-27 06:08:58,741 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:58,741 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:58,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:58,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:58,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:58,755 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:58,755 INFO L82 PathProgramCache]: Analyzing trace with hash 154115, now seen corresponding path program 1 times [2018-10-27 06:08:58,755 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:58,755 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:58,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:58,755 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:58,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:58,762 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:08:58,762 INFO L82 PathProgramCache]: Analyzing trace with hash 837694373, now seen corresponding path program 1 times [2018-10-27 06:08:58,762 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:08:58,762 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:08:58,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:58,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:08:58,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:08:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:08:58,923 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:08:58,923 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:08:58,923 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:08:58,923 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:08:58,923 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:08:58,923 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:08:58,923 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:08:58,923 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:08:58,923 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration4_Lasso [2018-10-27 06:08:58,924 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:08:58,924 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:08:58,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:58,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:58,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:58,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:58,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:58,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:58,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:58,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:58,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:58,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:58,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:08:59,082 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:08:59,082 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:59,085 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:59,085 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:59,090 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:59,090 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_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:59,107 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:59,108 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:59,142 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:59,142 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0, ULTIMATE.start_f_~c~0=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0, ULTIMATE.start_f_~c~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:59,165 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:59,165 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:08:59,170 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:08:59,170 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_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:08:59,188 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:08:59,188 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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) [2018-10-27 06:08:59,246 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:08:59,247 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:09:01,996 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:09:01,998 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:09:01,998 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:09:01,998 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:09:01,998 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:09:01,998 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:09:01,998 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:09:01,998 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:09:01,999 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:09:01,999 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration4_Lasso [2018-10-27 06:09:01,999 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:09:01,999 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:09:02,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:02,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:02,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:02,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:02,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:02,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:02,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:02,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:02,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:02,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:02,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:02,221 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:09:02,221 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:09:02,222 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 [2018-10-27 06:09:02,222 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:02,222 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:09:02,223 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:02,223 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:02,223 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:02,223 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:09:02,223 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:09:02,224 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:09:02,224 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 [2018-10-27 06:09:02,224 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:02,225 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:02,225 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:02,225 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:02,232 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:09:02,232 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:09:02,237 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:09:02,237 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 [2018-10-27 06:09:02,240 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:02,240 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:02,240 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:02,241 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:02,241 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:09:02,242 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:09:02,245 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:09:02,245 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 [2018-10-27 06:09:02,246 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:02,246 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:02,246 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:02,246 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:02,247 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:09:02,247 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:09:02,254 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:09:02,254 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 [2018-10-27 06:09:02,254 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:02,255 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:02,255 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:02,255 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:02,256 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:09:02,256 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:09:02,268 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:09:02,271 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-10-27 06:09:02,271 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-10-27 06:09:02,272 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:09:02,273 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-10-27 06:09:02,273 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:09:02,273 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] [2018-10-27 06:09:02,326 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-10-27 06:09:02,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:09:02,396 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:09:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:09:02,408 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:09:02,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:09:02,421 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 [2018-10-27 06:09:02,421 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 48 transitions. cyclomatic complexity: 14 Second operand 5 states. [2018-10-27 06:09:02,492 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 48 transitions. cyclomatic complexity: 14. Second operand 5 states. Result 47 states and 58 transitions. Complement of second has 8 states. [2018-10-27 06:09:02,493 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 [2018-10-27 06:09:02,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:09:02,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2018-10-27 06:09:02,493 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 12 letters. Loop has 3 letters. [2018-10-27 06:09:02,493 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:02,494 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 15 letters. Loop has 3 letters. [2018-10-27 06:09:02,494 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:02,494 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 12 letters. Loop has 6 letters. [2018-10-27 06:09:02,494 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:02,494 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 58 transitions. [2018-10-27 06:09:02,495 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-10-27 06:09:02,495 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 46 states and 57 transitions. [2018-10-27 06:09:02,496 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2018-10-27 06:09:02,496 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2018-10-27 06:09:02,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 57 transitions. [2018-10-27 06:09:02,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:09:02,496 INFO L705 BuchiCegarLoop]: Abstraction has 46 states and 57 transitions. [2018-10-27 06:09:02,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 57 transitions. [2018-10-27 06:09:02,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45. [2018-10-27 06:09:02,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-10-27 06:09:02,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2018-10-27 06:09:02,499 INFO L728 BuchiCegarLoop]: Abstraction has 45 states and 56 transitions. [2018-10-27 06:09:02,499 INFO L608 BuchiCegarLoop]: Abstraction has 45 states and 56 transitions. [2018-10-27 06:09:02,499 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-10-27 06:09:02,499 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 56 transitions. [2018-10-27 06:09:02,500 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-10-27 06:09:02,500 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:09:02,500 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:09:02,500 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:09:02,500 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-10-27 06:09:02,500 INFO L793 eck$LassoCheckResult]: Stem: 688#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 666#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 667#L36 assume main_~c~1 % 256 != 0;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 678#L13 assume !!(f_~k~0 <= 1073741823); 674#L16-3 assume true; 649#L16-1 assume !(f_~z~0 < f_~k~0); 650#L16-4 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 673#L4 assume !(__VERIFIER_assert_~cond == 0); 691#L4-2 assume { :end_inline___VERIFIER_assert } true; 659#L18 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 660#L20 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 665#L21 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 672#L24-2 assume true; 684#L22-1 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 685#L24 assume f_~c~0 % 256 != 0; 676#L25 [2018-10-27 06:09:02,501 INFO L795 eck$LassoCheckResult]: Loop: 676#L25 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; 677#L24-2 assume true; 689#L22-1 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 692#L24 assume f_~c~0 % 256 != 0; 676#L25 [2018-10-27 06:09:02,501 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:02,501 INFO L82 PathProgramCache]: Analyzing trace with hash 2017331163, now seen corresponding path program 1 times [2018-10-27 06:09:02,501 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:02,501 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:02,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:02,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:09:02,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:02,514 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:02,514 INFO L82 PathProgramCache]: Analyzing trace with hash 2944537, now seen corresponding path program 1 times [2018-10-27 06:09:02,514 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:02,514 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:02,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:02,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:09:02,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:02,519 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:02,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1743816461, now seen corresponding path program 1 times [2018-10-27 06:09:02,520 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:02,520 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:02,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:02,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:09:02,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:02,652 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-10-27 06:09:02,668 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:09:02,668 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:09:02,668 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:09:02,668 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:09:02,668 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:09:02,668 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:09:02,668 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:09:02,668 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:09:02,668 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration5_Loop [2018-10-27 06:09:02,668 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:09:02,668 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:09:02,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:02,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:02,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:02,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:02,742 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:09:02,742 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:02,746 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:02,747 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:02,763 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:02,763 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_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:02,766 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:02,766 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:02,773 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:02,773 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=-1, ULTIMATE.start_f_~y~0=255} Honda state: {ULTIMATE.start_f_#t~nondet4=-1, ULTIMATE.start_f_~y~0=255} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:02,791 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:02,791 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:02,810 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:09:02,811 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:02,847 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:02,847 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_352cfedc-f900-419b-a280-470ba4174780/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) [2018-10-27 06:09:02,879 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:02,879 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:09:02,914 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:02,914 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: [] [2018-10-27 06:09:03,426 WARN L179 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-10-27 06:09:03,787 WARN L179 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2018-10-27 06:09:03,788 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:09:03,788 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:09:03,788 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:09:03,788 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:09:03,788 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:09:03,788 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:09:03,789 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:09:03,789 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:09:03,789 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration5_Lasso [2018-10-27 06:09:03,789 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:09:03,789 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:09:03,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:03,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:03,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:03,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:03,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:03,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:03,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:03,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:03,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:03,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:03,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:04,001 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:09:04,001 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:04,003 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:04,003 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:04,009 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:04,009 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_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:04,026 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:04,026 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:04,030 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:04,030 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_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:04,047 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:04,047 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:04,077 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:04,077 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=294976, ULTIMATE.start_f_~y~0=64} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:04,095 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:04,095 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:04,128 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:09:04,128 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:16,157 INFO L448 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-10-27 06:09:16,160 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:09:16,160 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:09:16,160 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:09:16,160 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:09:16,160 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:09:16,160 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:09:16,160 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:09:16,160 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:09:16,160 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration5_Lasso [2018-10-27 06:09:16,160 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:09:16,160 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:09:16,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:16,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:16,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:16,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:16,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:16,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:16,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:16,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:16,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:16,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:16,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:16,341 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:09:16,341 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:09:16,341 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 [2018-10-27 06:09:16,342 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:16,342 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:16,342 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:16,342 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:16,343 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:09:16,343 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:09:16,347 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:09:16,348 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 [2018-10-27 06:09:16,348 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:16,348 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:16,348 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:16,348 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:16,349 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:09:16,349 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:09:16,351 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:09:16,352 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:09:16,352 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:16,352 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:09:16,352 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:16,352 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:16,352 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:16,353 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:09:16,353 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:09:16,353 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:09:16,353 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 [2018-10-27 06:09:16,354 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:16,364 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:16,365 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:16,365 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:16,366 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:09:16,366 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:09:16,375 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:09:16,379 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-10-27 06:09:16,379 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-10-27 06:09:16,379 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:09:16,382 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2018-10-27 06:09:16,382 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:09:16,382 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0) = 2*ULTIMATE.start_f_~x~0 + 1 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0, 1*ULTIMATE.start_f_~x~0 >= 0] [2018-10-27 06:09:16,392 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2018-10-27 06:09:16,429 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:09:16,451 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:09:16,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:09:16,466 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:09:16,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:09:16,527 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2018-10-27 06:09:16,527 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 56 transitions. cyclomatic complexity: 17 Second operand 5 states. [2018-10-27 06:09:16,612 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 56 transitions. cyclomatic complexity: 17. Second operand 5 states. Result 58 states and 73 transitions. Complement of second has 7 states. [2018-10-27 06:09:16,612 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 [2018-10-27 06:09:16,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:09:16,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2018-10-27 06:09:16,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 15 letters. Loop has 4 letters. [2018-10-27 06:09:16,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:16,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 19 letters. Loop has 4 letters. [2018-10-27 06:09:16,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:16,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 15 letters. Loop has 8 letters. [2018-10-27 06:09:16,614 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:16,614 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 73 transitions. [2018-10-27 06:09:16,616 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-10-27 06:09:16,616 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 53 states and 66 transitions. [2018-10-27 06:09:16,616 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2018-10-27 06:09:16,616 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2018-10-27 06:09:16,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 66 transitions. [2018-10-27 06:09:16,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:09:16,617 INFO L705 BuchiCegarLoop]: Abstraction has 53 states and 66 transitions. [2018-10-27 06:09:16,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 66 transitions. [2018-10-27 06:09:16,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2018-10-27 06:09:16,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-10-27 06:09:16,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 65 transitions. [2018-10-27 06:09:16,619 INFO L728 BuchiCegarLoop]: Abstraction has 52 states and 65 transitions. [2018-10-27 06:09:16,619 INFO L608 BuchiCegarLoop]: Abstraction has 52 states and 65 transitions. [2018-10-27 06:09:16,619 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-10-27 06:09:16,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 65 transitions. [2018-10-27 06:09:16,620 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-10-27 06:09:16,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:09:16,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:09:16,621 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:09:16,621 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-10-27 06:09:16,621 INFO L793 eck$LassoCheckResult]: Stem: 888#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 865#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 866#L36 assume !(main_~c~1 % 256 != 0);assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 879#L13-1 assume !!(f_~k~0 <= 1073741823); 881#L16-8 assume true; 867#L16-6 assume !(f_~z~0 < f_~k~0); 868#L16-9 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 880#L4-3 assume !(__VERIFIER_assert_~cond == 0); 883#L4-5 assume { :end_inline___VERIFIER_assert } true; 852#L18-1 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 853#L20-2 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 856#L21-2 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 882#L24-5 assume true; 857#L22-4 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 858#L24-3 assume f_~c~0 % 256 != 0; 874#L25-1 [2018-10-27 06:09:16,621 INFO L795 eck$LassoCheckResult]: Loop: 874#L25-1 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; 861#L24-5 assume true; 862#L22-4 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 899#L24-3 assume f_~c~0 % 256 != 0; 874#L25-1 [2018-10-27 06:09:16,621 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:16,621 INFO L82 PathProgramCache]: Analyzing trace with hash 837694369, now seen corresponding path program 1 times [2018-10-27 06:09:16,621 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:16,621 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:16,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:16,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:09:16,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:16,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:16,628 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:16,629 INFO L82 PathProgramCache]: Analyzing trace with hash 5099417, now seen corresponding path program 1 times [2018-10-27 06:09:16,629 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:16,629 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:16,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:16,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:09:16,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:16,633 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:16,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1656304441, now seen corresponding path program 1 times [2018-10-27 06:09:16,633 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:16,633 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:16,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:16,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:09:16,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:16,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:16,701 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:09:16,701 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:09:16,701 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:09:16,701 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:09:16,701 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:09:16,701 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:09:16,701 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:09:16,701 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:09:16,701 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration6_Loop [2018-10-27 06:09:16,701 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:09:16,701 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:09:16,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:16,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:16,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:16,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:16,816 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:09:16,816 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:16,821 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:16,821 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:16,828 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:16,828 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-37, ULTIMATE.start_f_~c~0=-37} Honda state: {ULTIMATE.start_f_#t~nondet3=-37, ULTIMATE.start_f_~c~0=-37} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:16,845 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:16,845 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:16,861 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:16,861 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_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:16,865 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:16,865 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:16,872 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:16,872 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=-1, ULTIMATE.start_f_~y~0=255} Honda state: {ULTIMATE.start_f_#t~nondet4=-1, ULTIMATE.start_f_~y~0=255} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:16,889 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:16,889 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:16,907 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:09:16,907 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:16,928 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:16,928 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] [2018-10-27 06:09:17,023 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:09:17,023 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:09:17,024 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:09:17,024 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:09:17,024 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:09:17,024 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:09:17,024 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:09:17,024 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:09:17,024 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration6_Lasso [2018-10-27 06:09:17,024 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:09:17,024 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:09:17,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:17,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:17,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:17,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:17,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:17,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:17,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:17,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:17,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:17,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:17,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:17,201 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:09:17,201 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:17,205 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:17,205 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:17,224 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:09:17,224 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:29,257 INFO L448 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-10-27 06:09:29,260 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:09:29,260 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:09:29,260 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:09:29,260 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:09:29,260 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:09:29,260 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:09:29,260 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:09:29,260 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:09:29,260 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration6_Lasso [2018-10-27 06:09:29,260 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:09:29,260 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:09:29,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:29,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:29,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:29,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:29,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:29,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:29,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:29,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:29,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:29,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:29,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:29,459 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:09:29,459 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:09:29,459 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 [2018-10-27 06:09:29,459 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:29,460 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:29,460 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:29,460 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:29,461 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:09:29,461 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:09:29,468 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:09:29,473 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-10-27 06:09:29,473 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-10-27 06:09:29,474 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:09:29,474 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-10-27 06:09:29,475 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:09:29,475 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] [2018-10-27 06:09:29,507 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-10-27 06:09:30,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:30,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:09:30,035 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:09:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:09:30,050 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:09:30,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:09:30,436 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 [2018-10-27 06:09:30,436 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 65 transitions. cyclomatic complexity: 20 Second operand 5 states. [2018-10-27 06:09:30,506 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 65 transitions. cyclomatic complexity: 20. Second operand 5 states. Result 65 states and 82 transitions. Complement of second has 7 states. [2018-10-27 06:09:30,508 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 [2018-10-27 06:09:30,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:09:30,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2018-10-27 06:09:30,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 15 letters. Loop has 4 letters. [2018-10-27 06:09:30,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:30,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 19 letters. Loop has 4 letters. [2018-10-27 06:09:30,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:30,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 15 letters. Loop has 8 letters. [2018-10-27 06:09:30,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:30,510 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 82 transitions. [2018-10-27 06:09:30,511 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-10-27 06:09:30,511 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 60 states and 75 transitions. [2018-10-27 06:09:30,511 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2018-10-27 06:09:30,511 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2018-10-27 06:09:30,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 75 transitions. [2018-10-27 06:09:30,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:09:30,512 INFO L705 BuchiCegarLoop]: Abstraction has 60 states and 75 transitions. [2018-10-27 06:09:30,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 75 transitions. [2018-10-27 06:09:30,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 59. [2018-10-27 06:09:30,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-10-27 06:09:30,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 74 transitions. [2018-10-27 06:09:30,518 INFO L728 BuchiCegarLoop]: Abstraction has 59 states and 74 transitions. [2018-10-27 06:09:30,518 INFO L608 BuchiCegarLoop]: Abstraction has 59 states and 74 transitions. [2018-10-27 06:09:30,518 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-10-27 06:09:30,518 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 74 transitions. [2018-10-27 06:09:30,519 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-10-27 06:09:30,519 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:09:30,519 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:09:30,519 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:09:30,520 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:09:30,520 INFO L793 eck$LassoCheckResult]: Stem: 1099#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1073#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1074#L36 assume main_~c~1 % 256 != 0;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1087#L13 assume !!(f_~k~0 <= 1073741823); 1081#L16-3 assume true; 1057#L16-1 assume !(f_~z~0 < f_~k~0); 1058#L16-4 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1080#L4 assume !(__VERIFIER_assert_~cond == 0); 1101#L4-2 assume { :end_inline___VERIFIER_assert } true; 1067#L18 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 1068#L20 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 1072#L21 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 1079#L24-2 assume true; 1110#L22-1 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1108#L24 assume f_~c~0 % 256 != 0; 1084#L25 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1085#L24-2 assume true; 1095#L22-1 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1096#L24 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 1100#L24-2 [2018-10-27 06:09:30,520 INFO L795 eck$LassoCheckResult]: Loop: 1100#L24-2 assume true; 1093#L22-1 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1094#L24 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 1100#L24-2 [2018-10-27 06:09:30,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:30,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1743816457, now seen corresponding path program 1 times [2018-10-27 06:09:30,520 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:30,520 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:30,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:30,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:09:30,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:30,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:30,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:30,544 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:30,544 INFO L82 PathProgramCache]: Analyzing trace with hash 84605, now seen corresponding path program 2 times [2018-10-27 06:09:30,544 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:30,544 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:30,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:30,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:09:30,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:30,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:30,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1888396743, now seen corresponding path program 2 times [2018-10-27 06:09:30,558 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:30,559 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:30,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:30,559 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:09:30,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:30,731 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:09:30,731 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:09:30,731 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:09:30,731 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:09:30,731 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:09:30,731 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:09:30,731 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:09:30,731 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:09:30,731 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration7_Lasso [2018-10-27 06:09:30,731 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:09:30,731 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:09:30,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:30,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:30,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:30,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:30,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:30,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:30,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:30,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:30,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:30,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:30,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:30,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:30,904 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:09:30,905 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:30,908 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:30,908 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:30,910 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:30,911 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_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:30,929 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:30,929 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:30,937 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:30,937 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0, ULTIMATE.start_f_~c~0=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0, ULTIMATE.start_f_~c~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:30,955 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:30,955 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:30,978 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:09:30,978 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:43,008 INFO L448 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-10-27 06:09:43,010 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:09:43,011 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:09:43,011 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:09:43,011 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:09:43,011 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:09:43,011 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:09:43,011 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:09:43,011 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:09:43,011 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration7_Lasso [2018-10-27 06:09:43,011 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:09:43,011 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:09:43,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:43,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:43,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:43,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:43,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:43,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:43,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:43,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:43,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:43,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:43,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:43,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:43,185 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:09:43,185 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:09:43,185 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 [2018-10-27 06:09:43,186 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:43,189 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:43,189 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:43,189 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:43,190 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:09:43,190 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:09:43,209 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:09:43,209 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:09:43,210 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:43,210 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:43,215 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:43,215 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:43,217 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:09:43,217 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:09:43,232 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:09:43,233 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 [2018-10-27 06:09:43,233 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:43,233 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:43,233 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:43,233 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:43,238 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:09:43,238 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:09:43,240 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:09:43,241 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 [2018-10-27 06:09:43,241 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:43,241 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:43,241 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:43,241 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:43,253 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:09:43,253 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:09:43,256 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:09:43,256 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 [2018-10-27 06:09:43,256 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:43,256 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:09:43,256 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:43,256 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:43,257 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:43,257 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:09:43,257 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:09:43,257 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:09:43,257 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:09:43,258 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:43,266 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:09:43,266 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:43,266 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:43,266 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:43,266 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:09:43,266 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:09:43,267 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:09:43,267 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 [2018-10-27 06:09:43,267 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:43,267 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:09:43,267 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:43,268 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:43,268 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:43,268 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:09:43,268 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:09:43,268 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:09:43,269 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 [2018-10-27 06:09:43,269 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:43,269 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:43,269 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:43,269 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:43,272 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:09:43,273 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:09:43,295 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:09:43,306 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-10-27 06:09:43,313 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-10-27 06:09:43,313 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:09:43,314 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-10-27 06:09:43,314 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:09:43,314 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] [2018-10-27 06:09:43,346 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-10-27 06:09:43,615 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:43,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:09:43,622 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:09:43,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:09:43,647 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:09:43,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:09:43,859 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 [2018-10-27 06:09:43,859 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 59 states and 74 transitions. cyclomatic complexity: 23 Second operand 5 states. [2018-10-27 06:09:43,889 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 59 states and 74 transitions. cyclomatic complexity: 23. Second operand 5 states. Result 86 states and 105 transitions. Complement of second has 8 states. [2018-10-27 06:09:43,890 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 [2018-10-27 06:09:43,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:09:43,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 38 transitions. [2018-10-27 06:09:43,890 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 19 letters. Loop has 3 letters. [2018-10-27 06:09:43,891 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:43,891 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 22 letters. Loop has 3 letters. [2018-10-27 06:09:43,891 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:43,891 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 19 letters. Loop has 6 letters. [2018-10-27 06:09:43,891 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:43,891 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 105 transitions. [2018-10-27 06:09:43,892 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-10-27 06:09:43,893 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 74 states and 91 transitions. [2018-10-27 06:09:43,893 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2018-10-27 06:09:43,893 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2018-10-27 06:09:43,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 91 transitions. [2018-10-27 06:09:43,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:09:43,893 INFO L705 BuchiCegarLoop]: Abstraction has 74 states and 91 transitions. [2018-10-27 06:09:43,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 91 transitions. [2018-10-27 06:09:43,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 71. [2018-10-27 06:09:43,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-10-27 06:09:43,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2018-10-27 06:09:43,897 INFO L728 BuchiCegarLoop]: Abstraction has 71 states and 88 transitions. [2018-10-27 06:09:43,897 INFO L608 BuchiCegarLoop]: Abstraction has 71 states and 88 transitions. [2018-10-27 06:09:43,897 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-10-27 06:09:43,897 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 88 transitions. [2018-10-27 06:09:43,897 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-10-27 06:09:43,898 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:09:43,898 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:09:43,898 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:09:43,898 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:09:43,898 INFO L793 eck$LassoCheckResult]: Stem: 1345#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1319#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1320#L36 assume !(main_~c~1 % 256 != 0);assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1334#L13-1 assume !!(f_~k~0 <= 1073741823); 1336#L16-8 assume true; 1321#L16-6 assume !(f_~z~0 < f_~k~0); 1322#L16-9 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1335#L4-3 assume !(__VERIFIER_assert_~cond == 0); 1338#L4-5 assume { :end_inline___VERIFIER_assert } true; 1307#L18-1 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 1308#L20-2 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 1315#L21-2 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 1337#L24-5 assume true; 1356#L22-4 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1353#L24-3 assume f_~c~0 % 256 != 0; 1328#L25-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1317#L24-5 assume true; 1311#L22-4 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1312#L24-3 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 1316#L24-5 [2018-10-27 06:09:43,898 INFO L795 eck$LassoCheckResult]: Loop: 1316#L24-5 assume true; 1309#L22-4 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1310#L24-3 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 1316#L24-5 [2018-10-27 06:09:43,898 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:43,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1656304445, now seen corresponding path program 1 times [2018-10-27 06:09:43,899 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:43,899 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:43,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:43,899 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:09:43,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:43,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:43,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:43,908 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:43,908 INFO L82 PathProgramCache]: Analyzing trace with hash 154115, now seen corresponding path program 2 times [2018-10-27 06:09:43,908 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:43,908 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:43,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:43,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:09:43,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:43,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:43,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:43,911 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:43,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1913418425, now seen corresponding path program 2 times [2018-10-27 06:09:43,911 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:43,911 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:43,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:43,912 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:09:43,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:44,102 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:09:44,102 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:09:44,102 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:09:44,102 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:09:44,102 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:09:44,102 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:09:44,102 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:09:44,103 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:09:44,103 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration8_Lasso [2018-10-27 06:09:44,103 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:09:44,103 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:09:44,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:44,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:44,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:44,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:44,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:44,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:44,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:44,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:44,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:44,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:44,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:44,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:44,332 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:09:44,332 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:44,335 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:44,335 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:44,338 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:44,338 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~k~0=-360000} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:44,357 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:44,357 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:44,362 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:44,362 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_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:44,380 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:44,380 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:44,387 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:44,387 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_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:44,405 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:44,405 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:44,408 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:44,409 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_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:44,426 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:44,426 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:44,429 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:44,429 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: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:44,446 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:44,446 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:44,448 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:44,448 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_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:44,466 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:44,466 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:44,468 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:44,468 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_352cfedc-f900-419b-a280-470ba4174780/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) [2018-10-27 06:09:44,485 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:44,485 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:44,507 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:09:44,507 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:56,534 INFO L448 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-10-27 06:09:56,536 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:09:56,536 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:09:56,536 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:09:56,536 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:09:56,536 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:09:56,536 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:09:56,536 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:09:56,536 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:09:56,536 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration8_Lasso [2018-10-27 06:09:56,537 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:09:56,537 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:09:56,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:56,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:56,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:56,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:56,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:56,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:56,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:56,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:56,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:56,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:56,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:56,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:56,743 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:09:56,743 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:09:56,744 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 [2018-10-27 06:09:56,744 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:56,744 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:56,744 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:56,744 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:56,745 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:09:56,745 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:09:56,746 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:09:56,747 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 [2018-10-27 06:09:56,747 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:56,747 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:56,747 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:56,747 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:56,748 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:09:56,748 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:09:56,749 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:09:56,749 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 [2018-10-27 06:09:56,750 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:56,762 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:09:56,762 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:56,762 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:56,762 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:56,762 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:09:56,762 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:09:56,763 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:09:56,763 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 [2018-10-27 06:09:56,763 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:56,763 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:56,763 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:56,763 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:56,764 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:09:56,764 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:09:56,764 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:09:56,765 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 [2018-10-27 06:09:56,765 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:56,765 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:56,765 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:56,765 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:56,766 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:09:56,766 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:09:56,767 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:09:56,767 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 [2018-10-27 06:09:56,767 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:56,767 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:56,768 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:56,768 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:56,768 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:09:56,768 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:09:56,770 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:09:56,771 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 [2018-10-27 06:09:56,771 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:09:56,771 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:09:56,771 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:09:56,771 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:09:56,772 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:09:56,772 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:09:56,779 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:09:56,784 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-10-27 06:09:56,785 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-10-27 06:09:56,785 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:09:56,786 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-10-27 06:09:56,786 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:09:56,786 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] [2018-10-27 06:09:56,811 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-10-27 06:09:57,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:57,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:09:57,129 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:09:57,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:09:57,143 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:09:57,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:09:57,151 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 [2018-10-27 06:09:57,151 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 88 transitions. cyclomatic complexity: 27 Second operand 5 states. [2018-10-27 06:09:57,181 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 88 transitions. cyclomatic complexity: 27. Second operand 5 states. Result 98 states and 119 transitions. Complement of second has 8 states. [2018-10-27 06:09:57,182 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 [2018-10-27 06:09:57,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:09:57,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 38 transitions. [2018-10-27 06:09:57,183 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 19 letters. Loop has 3 letters. [2018-10-27 06:09:57,183 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:57,183 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 22 letters. Loop has 3 letters. [2018-10-27 06:09:57,183 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:57,183 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 19 letters. Loop has 6 letters. [2018-10-27 06:09:57,183 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:09:57,184 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 98 states and 119 transitions. [2018-10-27 06:09:57,184 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-10-27 06:09:57,190 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 98 states to 86 states and 105 transitions. [2018-10-27 06:09:57,190 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2018-10-27 06:09:57,190 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2018-10-27 06:09:57,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 86 states and 105 transitions. [2018-10-27 06:09:57,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:09:57,190 INFO L705 BuchiCegarLoop]: Abstraction has 86 states and 105 transitions. [2018-10-27 06:09:57,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states and 105 transitions. [2018-10-27 06:09:57,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 83. [2018-10-27 06:09:57,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-10-27 06:09:57,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 102 transitions. [2018-10-27 06:09:57,198 INFO L728 BuchiCegarLoop]: Abstraction has 83 states and 102 transitions. [2018-10-27 06:09:57,198 INFO L608 BuchiCegarLoop]: Abstraction has 83 states and 102 transitions. [2018-10-27 06:09:57,198 INFO L442 BuchiCegarLoop]: ======== Iteration 9============ [2018-10-27 06:09:57,198 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states and 102 transitions. [2018-10-27 06:09:57,198 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-10-27 06:09:57,198 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:09:57,199 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:09:57,199 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:09:57,199 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:09:57,199 INFO L793 eck$LassoCheckResult]: Stem: 1619#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1591#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1592#L36 assume main_~c~1 % 256 != 0;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1606#L13 assume !!(f_~k~0 <= 1073741823); 1599#L16-3 assume true; 1573#L16-1 assume !(f_~z~0 < f_~k~0); 1574#L16-4 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1598#L4 assume !(__VERIFIER_assert_~cond == 0); 1623#L4-2 assume { :end_inline___VERIFIER_assert } true; 1583#L18 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 1584#L20 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 1590#L21 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 1597#L24-2 assume true; 1620#L22-1 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1639#L24 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 1638#L24-2 assume true; 1635#L22-1 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1634#L24 assume f_~c~0 % 256 != 0; 1633#L25 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1632#L24-2 assume true; 1631#L22-1 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1628#L24 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 1627#L24-2 [2018-10-27 06:09:57,199 INFO L795 eck$LassoCheckResult]: Loop: 1627#L24-2 assume true; 1630#L22-1 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1626#L24 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 1627#L24-2 [2018-10-27 06:09:57,199 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:57,200 INFO L82 PathProgramCache]: Analyzing trace with hash -728416521, now seen corresponding path program 3 times [2018-10-27 06:09:57,200 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:57,200 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:57,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:57,200 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:09:57,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:57,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:57,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:57,219 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:57,219 INFO L82 PathProgramCache]: Analyzing trace with hash 84605, now seen corresponding path program 3 times [2018-10-27 06:09:57,219 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:57,219 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:57,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:57,220 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:09:57,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:57,222 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:09:57,222 INFO L82 PathProgramCache]: Analyzing trace with hash -2081742905, now seen corresponding path program 4 times [2018-10-27 06:09:57,222 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:09:57,223 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:09:57,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:57,223 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:09:57,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:09:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:09:57,389 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:09:57,389 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:09:57,389 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:09:57,389 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:09:57,389 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:09:57,389 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:09:57,389 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:09:57,390 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:09:57,390 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration9_Lasso [2018-10-27 06:09:57,390 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:09:57,390 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:09:57,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:57,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:57,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:57,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:57,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:57,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:57,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:57,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:57,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:57,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:57,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:57,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:09:57,543 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:09:57,543 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:57,547 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:57,547 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:09:57,550 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:09:57,550 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~k~0=-360000} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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) [2018-10-27 06:09:57,567 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:09:57,567 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:09:57,594 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:09:57,594 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:10:09,623 INFO L448 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-10-27 06:10:09,625 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:10:09,625 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:10:09,625 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:10:09,625 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:10:09,626 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:10:09,626 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:10:09,626 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:10:09,626 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:10:09,626 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration9_Lasso [2018-10-27 06:10:09,626 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:10:09,626 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:10:09,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:09,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:09,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:09,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:09,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:09,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:09,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:09,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:09,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:09,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:09,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:09,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:09,898 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:10:09,898 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:10:09,898 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 [2018-10-27 06:10:09,898 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:09,899 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:09,899 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:09,899 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:09,899 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:10:09,899 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:10:09,901 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:09,901 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 [2018-10-27 06:10:09,902 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:09,910 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:09,910 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:09,910 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:09,910 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:09,910 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:09,911 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:09,911 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:09,911 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 [2018-10-27 06:10:09,911 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:09,912 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:09,912 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:09,912 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:09,918 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:09,918 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:09,918 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:09,919 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:09,919 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:10:09,919 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:09,920 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:09,920 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:09,920 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:09,920 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:09,920 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:09,920 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:09,921 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:09,921 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 [2018-10-27 06:10:09,921 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:09,921 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:09,921 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:09,922 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:09,923 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:10:09,923 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:10:09,925 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:09,925 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 [2018-10-27 06:10:09,931 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:09,932 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:09,932 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:09,932 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:09,932 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:09,932 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:09,932 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:09,933 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:09,933 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 [2018-10-27 06:10:09,933 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:09,933 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:09,933 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:09,934 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:09,934 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:09,934 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:09,934 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:09,934 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:09,935 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:10:09,935 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:09,935 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:09,935 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:09,935 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:09,937 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:10:09,938 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:10:09,956 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:10:09,969 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-10-27 06:10:09,969 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-10-27 06:10:09,969 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:10:09,969 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-10-27 06:10:09,970 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:10:09,970 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] [2018-10-27 06:10:09,985 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-10-27 06:10:09,999 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:10,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:10,006 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:10,013 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:10,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:10:10,028 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 [2018-10-27 06:10:10,028 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 83 states and 102 transitions. cyclomatic complexity: 31 Second operand 5 states. [2018-10-27 06:10:10,059 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 83 states and 102 transitions. cyclomatic complexity: 31. Second operand 5 states. Result 96 states and 115 transitions. Complement of second has 8 states. [2018-10-27 06:10:10,060 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 [2018-10-27 06:10:10,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:10:10,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 38 transitions. [2018-10-27 06:10:10,061 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 22 letters. Loop has 3 letters. [2018-10-27 06:10:10,061 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:10,061 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-10-27 06:10:10,083 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:10,090 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:10,103 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:10,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:10:10,111 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 [2018-10-27 06:10:10,111 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 83 states and 102 transitions. cyclomatic complexity: 31 Second operand 5 states. [2018-10-27 06:10:10,145 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 83 states and 102 transitions. cyclomatic complexity: 31. Second operand 5 states. Result 96 states and 115 transitions. Complement of second has 8 states. [2018-10-27 06:10:10,146 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 [2018-10-27 06:10:10,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:10:10,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 38 transitions. [2018-10-27 06:10:10,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 22 letters. Loop has 3 letters. [2018-10-27 06:10:10,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:10,147 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-10-27 06:10:10,162 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:10,169 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:10,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:10,175 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:10,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:10:10,183 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 [2018-10-27 06:10:10,183 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 83 states and 102 transitions. cyclomatic complexity: 31 Second operand 5 states. [2018-10-27 06:10:10,228 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 83 states and 102 transitions. cyclomatic complexity: 31. Second operand 5 states. Result 101 states and 122 transitions. Complement of second has 7 states. [2018-10-27 06:10:10,228 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 [2018-10-27 06:10:10,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:10:10,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 39 transitions. [2018-10-27 06:10:10,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 22 letters. Loop has 3 letters. [2018-10-27 06:10:10,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:10,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 25 letters. Loop has 3 letters. [2018-10-27 06:10:10,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:10,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 22 letters. Loop has 6 letters. [2018-10-27 06:10:10,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:10,229 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 101 states and 122 transitions. [2018-10-27 06:10:10,230 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-10-27 06:10:10,231 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 101 states to 43 states and 52 transitions. [2018-10-27 06:10:10,231 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2018-10-27 06:10:10,231 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2018-10-27 06:10:10,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 52 transitions. [2018-10-27 06:10:10,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:10:10,231 INFO L705 BuchiCegarLoop]: Abstraction has 43 states and 52 transitions. [2018-10-27 06:10:10,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 52 transitions. [2018-10-27 06:10:10,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-10-27 06:10:10,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-10-27 06:10:10,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2018-10-27 06:10:10,233 INFO L728 BuchiCegarLoop]: Abstraction has 43 states and 52 transitions. [2018-10-27 06:10:10,233 INFO L608 BuchiCegarLoop]: Abstraction has 43 states and 52 transitions. [2018-10-27 06:10:10,233 INFO L442 BuchiCegarLoop]: ======== Iteration 10============ [2018-10-27 06:10:10,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 52 transitions. [2018-10-27 06:10:10,240 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-10-27 06:10:10,240 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:10:10,240 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:10:10,241 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:10:10,241 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:10:10,241 INFO L793 eck$LassoCheckResult]: Stem: 2257#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2251#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 2252#L36 assume !(main_~c~1 % 256 != 0);assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 2258#L13-1 assume !!(f_~k~0 <= 1073741823); 2243#L16-8 assume true; 2244#L16-6 assume !(f_~z~0 < f_~k~0); 2236#L16-9 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 1 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 2237#L4-3 assume !(__VERIFIER_assert_~cond == 0); 2253#L4-5 assume { :end_inline___VERIFIER_assert } true; 2234#L18-1 assume !!(f_~x~0 <= 1000000 && f_~x~0 >= -1000000); 2235#L20-2 assume !!(f_~y~0 <= 1000000 && f_~y~0 >= -1000000); 2242#L21-2 assume !!(f_~k~0 <= 1000000 && f_~k~0 >= -1000000); 2247#L24-5 assume true; 2248#L22-4 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 2274#L24-3 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 2272#L24-5 assume true; 2271#L22-4 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 2262#L24-3 assume f_~c~0 % 256 != 0; 2263#L25-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 2269#L24-5 assume true; 2268#L22-4 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 2266#L24-3 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 2254#L24-5 [2018-10-27 06:10:10,241 INFO L795 eck$LassoCheckResult]: Loop: 2254#L24-5 assume true; 2238#L22-4 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 2239#L24-3 assume !(f_~c~0 % 256 != 0);f_~y~0 := f_~y~0 - f_~d; 2254#L24-5 [2018-10-27 06:10:10,241 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:10,241 INFO L82 PathProgramCache]: Analyzing trace with hash -235264393, now seen corresponding path program 3 times [2018-10-27 06:10:10,241 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:10:10,242 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:10:10,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:10,242 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:10:10,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:10,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:10,252 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:10,253 INFO L82 PathProgramCache]: Analyzing trace with hash 154115, now seen corresponding path program 3 times [2018-10-27 06:10:10,253 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:10:10,253 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:10:10,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:10,253 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:10:10,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:10,264 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:10,264 INFO L82 PathProgramCache]: Analyzing trace with hash 625219533, now seen corresponding path program 4 times [2018-10-27 06:10:10,264 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:10:10,264 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:10:10,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:10,265 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:10:10,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:10,671 WARN L179 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2018-10-27 06:10:10,672 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:10:10,672 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:10:10,672 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:10:10,672 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:10:10,673 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:10:10,673 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:10:10,673 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:10:10,673 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:10:10,673 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration10_Lasso [2018-10-27 06:10:10,673 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:10:10,673 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:10:10,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:10,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:10,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:10,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:10,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:10,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:10,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:10,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:10,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:10,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:10,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:10,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:10,837 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:10:10,837 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:10:10,842 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:10:10,842 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_352cfedc-f900-419b-a280-470ba4174780/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 [2018-10-27 06:10:10,867 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:10:10,867 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:10:22,896 INFO L448 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-10-27 06:10:22,898 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:10:22,898 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:10:22,898 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:10:22,898 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:10:22,898 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:10:22,898 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:10:22,898 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:10:22,898 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:10:22,898 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_true-unreach-call_true-termination.i_Iteration10_Lasso [2018-10-27 06:10:22,898 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:10:22,898 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:10:22,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:22,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:22,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:22,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:22,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:22,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:22,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:22,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:22,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:22,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:22,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:22,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:23,048 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:10:23,048 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:10:23,049 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 [2018-10-27 06:10:23,049 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:23,049 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:23,049 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:23,049 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:23,049 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:23,049 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:23,049 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:23,050 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:23,050 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 [2018-10-27 06:10:23,050 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:23,050 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:23,050 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:23,051 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:23,051 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:10:23,051 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:10:23,053 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:23,054 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 [2018-10-27 06:10:23,055 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:23,056 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:23,056 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:23,056 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:23,056 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:23,056 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:23,056 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:23,056 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:23,057 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 [2018-10-27 06:10:23,057 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:23,057 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:23,057 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:23,057 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:23,058 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:10:23,058 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:10:23,059 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:23,059 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 [2018-10-27 06:10:23,059 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:23,059 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:23,059 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:23,060 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:23,060 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:10:23,060 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:10:23,061 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:23,061 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 [2018-10-27 06:10:23,062 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:23,062 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:23,063 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:23,063 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:23,063 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:23,063 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:23,064 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:23,064 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:23,064 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 [2018-10-27 06:10:23,064 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:23,065 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:23,065 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:23,065 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:23,065 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:23,065 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:23,065 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:23,065 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:23,066 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 [2018-10-27 06:10:23,066 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:23,066 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:23,066 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:23,066 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:23,066 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:23,066 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:23,066 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:23,067 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:23,067 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 [2018-10-27 06:10:23,067 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:23,067 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:23,067 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:23,067 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:23,068 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:10:23,068 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:10:23,069 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:23,070 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 [2018-10-27 06:10:23,072 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:23,073 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:23,073 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:23,073 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:23,073 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:10:23,073 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:10:23,074 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:23,074 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 [2018-10-27 06:10:23,075 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:23,075 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:23,075 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:23,075 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:23,076 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:10:23,076 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:10:23,099 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:10:23,130 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2018-10-27 06:10:23,130 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-10-27 06:10:23,130 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:10:23,131 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-10-27 06:10:23,131 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:10:23,131 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [499999*ULTIMATE.start_f_~d - 1*ULTIMATE.start_f_~x~0 >= 0] [2018-10-27 06:10:23,172 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-10-27 06:10:23,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:23,687 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:23,975 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:24,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:10:24,030 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2018-10-27 06:10:24,030 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 52 transitions. cyclomatic complexity: 15 Second operand 7 states. [2018-10-27 06:10:24,069 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 52 transitions. cyclomatic complexity: 15. Second operand 7 states. Result 52 states and 62 transitions. Complement of second has 11 states. [2018-10-27 06:10:24,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 4 stem states 2 non-accepting loop states 2 accepting loop states [2018-10-27 06:10:24,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-10-27 06:10:24,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 27 transitions. [2018-10-27 06:10:24,071 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 27 transitions. Stem has 22 letters. Loop has 3 letters. [2018-10-27 06:10:24,071 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:24,071 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-10-27 06:10:24,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:24,124 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:24,150 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:24,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:10:24,160 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.4 stem predicates 2 loop predicates [2018-10-27 06:10:24,160 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 52 transitions. cyclomatic complexity: 15 Second operand 7 states. [2018-10-27 06:10:24,217 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 52 transitions. cyclomatic complexity: 15. Second operand 7 states. Result 52 states and 62 transitions. Complement of second has 11 states. [2018-10-27 06:10:24,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 4 stem states 2 non-accepting loop states 2 accepting loop states [2018-10-27 06:10:24,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-10-27 06:10:24,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 27 transitions. [2018-10-27 06:10:24,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 27 transitions. Stem has 22 letters. Loop has 3 letters. [2018-10-27 06:10:24,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:24,219 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-10-27 06:10:24,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:24,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:24,243 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:24,287 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:24,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:10:24,298 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2018-10-27 06:10:24,299 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 52 transitions. cyclomatic complexity: 15 Second operand 7 states. [2018-10-27 06:10:24,349 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 52 transitions. cyclomatic complexity: 15. Second operand 7 states. Result 54 states and 65 transitions. Complement of second has 10 states. [2018-10-27 06:10:24,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 4 stem states 2 non-accepting loop states 2 accepting loop states [2018-10-27 06:10:24,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-10-27 06:10:24,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 29 transitions. [2018-10-27 06:10:24,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 29 transitions. Stem has 22 letters. Loop has 3 letters. [2018-10-27 06:10:24,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:24,351 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 29 transitions. Stem has 25 letters. Loop has 3 letters. [2018-10-27 06:10:24,351 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:24,351 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 29 transitions. Stem has 22 letters. Loop has 6 letters. [2018-10-27 06:10:24,351 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:24,351 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 65 transitions. [2018-10-27 06:10:24,351 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:10:24,352 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 0 states and 0 transitions. [2018-10-27 06:10:24,352 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-10-27 06:10:24,352 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-10-27 06:10:24,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-10-27 06:10:24,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:10:24,352 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:10:24,352 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:10:24,352 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:10:24,352 INFO L442 BuchiCegarLoop]: ======== Iteration 11============ [2018-10-27 06:10:24,352 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-10-27 06:10:24,352 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:10:24,352 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-10-27 06:10:24,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.10 06:10:24 BoogieIcfgContainer [2018-10-27 06:10:24,358 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-10-27 06:10:24,358 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 06:10:24,358 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 06:10:24,359 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 06:10:24,359 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:08:25" (3/4) ... [2018-10-27 06:10:24,362 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-27 06:10:24,362 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 06:10:24,363 INFO L168 Benchmark]: Toolchain (without parser) took 119876.76 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 273.7 MB). Free memory was 959.8 MB in the beginning and 1.0 GB in the end (delta: -49.5 MB). Peak memory consumption was 224.2 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:24,363 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:10:24,363 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.79 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:24,364 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.38 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 946.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:24,364 INFO L168 Benchmark]: Boogie Preprocessor took 17.72 ms. Allocated memory is still 1.0 GB. Free memory is still 946.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:10:24,364 INFO L168 Benchmark]: RCFGBuilder took 564.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -201.5 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:24,365 INFO L168 Benchmark]: BuchiAutomizer took 119081.90 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 104.3 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 138.5 MB). Peak memory consumption was 242.9 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:24,365 INFO L168 Benchmark]: Witness Printer took 3.82 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:10:24,367 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 175.79 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.38 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 946.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.72 ms. Allocated memory is still 1.0 GB. Free memory is still 946.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 564.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -201.5 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 119081.90 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 104.3 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 138.5 MB). Peak memory consumption was 242.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.82 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (0 trivial, 8 deterministic, 2 nondeterministic). One deterministic module has affine ranking function -1 * z + k and consists of 5 locations. One deterministic module has affine ranking function k + -1 * z 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 2 * x + 1 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 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 119.0s and 11 iterations. TraceHistogramMax:3. Analysis of lassos took 114.7s. Construction of modules took 0.3s. Büchi inclusion checks took 3.8s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 26 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 83 states and ocurred in iteration 8. Nontrivial modules had stage [8, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 418 SDtfs, 556 SDslu, 205 SDs, 0 SdLazy, 177 SolverSat, 74 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso10 LassoPreprocessingBenchmarks: Lassos: inital64 mio100 ax100 hnf97 lsp44 ukn100 mio100 lsp100 div296 bol100 ite100 ukn100 eq146 hnf49 smp87 dnf100 smp100 tf101 neg98 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 3 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 39 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 8 LassoNonterminationAnalysisTime: 104.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...