./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/loops/terminator_02_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_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/terminator_02_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/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 77773b6d98c13684866533d0b64942a0b1025f7d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 03:40:09,809 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 03:40:09,810 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 03:40:09,817 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 03:40:09,817 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 03:40:09,818 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 03:40:09,819 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 03:40:09,820 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 03:40:09,821 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 03:40:09,822 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 03:40:09,822 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 03:40:09,822 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 03:40:09,823 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 03:40:09,824 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 03:40:09,824 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 03:40:09,825 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 03:40:09,825 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 03:40:09,826 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 03:40:09,827 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 03:40:09,828 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 03:40:09,829 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 03:40:09,830 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 03:40:09,831 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 03:40:09,831 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 03:40:09,831 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 03:40:09,832 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 03:40:09,832 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 03:40:09,833 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 03:40:09,833 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 03:40:09,834 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 03:40:09,834 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 03:40:09,835 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 03:40:09,835 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 03:40:09,835 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 03:40:09,836 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 03:40:09,836 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 03:40:09,836 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-10 03:40:09,844 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 03:40:09,844 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 03:40:09,845 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 03:40:09,845 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 03:40:09,845 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 03:40:09,845 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 03:40:09,845 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 03:40:09,845 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 03:40:09,845 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 03:40:09,845 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 03:40:09,845 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 03:40:09,845 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 03:40:09,845 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 03:40:09,845 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 03:40:09,846 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 03:40:09,846 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 03:40:09,846 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 03:40:09,846 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 03:40:09,846 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 03:40:09,846 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 03:40:09,846 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 03:40:09,846 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 03:40:09,846 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 03:40:09,846 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 03:40:09,846 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 03:40:09,846 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 03:40:09,846 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 03:40:09,847 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 03:40:09,847 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 03:40:09,847 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 03:40:09,847 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 03:40:09,847 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_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/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 -> 77773b6d98c13684866533d0b64942a0b1025f7d [2018-11-10 03:40:09,870 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 03:40:09,879 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 03:40:09,881 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 03:40:09,882 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 03:40:09,883 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 03:40:09,883 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/../../sv-benchmarks/c/loops/terminator_02_true-unreach-call_true-termination.i [2018-11-10 03:40:09,925 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/data/632d61a7a/4e931bbaee7248fb9ca0302454d12675/FLAG5a8422283 [2018-11-10 03:40:10,329 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 03:40:10,330 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/sv-benchmarks/c/loops/terminator_02_true-unreach-call_true-termination.i [2018-11-10 03:40:10,334 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/data/632d61a7a/4e931bbaee7248fb9ca0302454d12675/FLAG5a8422283 [2018-11-10 03:40:10,345 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/data/632d61a7a/4e931bbaee7248fb9ca0302454d12675 [2018-11-10 03:40:10,348 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 03:40:10,349 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 03:40:10,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 03:40:10,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 03:40:10,353 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 03:40:10,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:40:10" (1/1) ... [2018-11-10 03:40:10,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a9efd18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:10, skipping insertion in model container [2018-11-10 03:40:10,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:40:10" (1/1) ... [2018-11-10 03:40:10,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 03:40:10,376 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 03:40:10,479 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:40:10,481 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 03:40:10,493 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:40:10,502 INFO L193 MainTranslator]: Completed translation [2018-11-10 03:40:10,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:10 WrapperNode [2018-11-10 03:40:10,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 03:40:10,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 03:40:10,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 03:40:10,503 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 03:40:10,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:10" (1/1) ... [2018-11-10 03:40:10,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:10" (1/1) ... [2018-11-10 03:40:10,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 03:40:10,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 03:40:10,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 03:40:10,524 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 03:40:10,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:10" (1/1) ... [2018-11-10 03:40:10,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:10" (1/1) ... [2018-11-10 03:40:10,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:10" (1/1) ... [2018-11-10 03:40:10,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:10" (1/1) ... [2018-11-10 03:40:10,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:10" (1/1) ... [2018-11-10 03:40:10,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:10" (1/1) ... [2018-11-10 03:40:10,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:10" (1/1) ... [2018-11-10 03:40:10,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 03:40:10,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 03:40:10,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 03:40:10,535 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 03:40:10,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:40:10,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 03:40:10,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 03:40:10,724 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 03:40:10,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:40:10 BoogieIcfgContainer [2018-11-10 03:40:10,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 03:40:10,725 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 03:40:10,725 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 03:40:10,728 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 03:40:10,729 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 03:40:10,729 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 03:40:10" (1/3) ... [2018-11-10 03:40:10,730 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e19c9e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 03:40:10, skipping insertion in model container [2018-11-10 03:40:10,730 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 03:40:10,730 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:40:10" (2/3) ... [2018-11-10 03:40:10,730 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e19c9e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 03:40:10, skipping insertion in model container [2018-11-10 03:40:10,730 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 03:40:10,730 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:40:10" (3/3) ... [2018-11-10 03:40:10,732 INFO L375 chiAutomizerObserver]: Analyzing ICFG terminator_02_true-unreach-call_true-termination.i [2018-11-10 03:40:10,770 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 03:40:10,771 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 03:40:10,771 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 03:40:10,771 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 03:40:10,771 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 03:40:10,771 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 03:40:10,771 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 03:40:10,771 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 03:40:10,771 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 03:40:10,780 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-11-10 03:40:10,794 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 03:40:10,795 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 03:40:10,795 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 03:40:10,799 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-10 03:40:10,800 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 03:40:10,800 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 03:40:10,800 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-11-10 03:40:10,801 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 03:40:10,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 03:40:10,801 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 03:40:10,802 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-10 03:40:10,802 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 03:40:10,807 INFO L793 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 5#L17true assume !!(main_~x~0 > -100); 6#L18true assume !!(main_~x~0 < 200); 8#L19true assume !!(main_~z~0 > 100); 9#L20true assume !!(main_~z~0 < 200); 13#L24-2true [2018-11-10 03:40:10,807 INFO L795 eck$LassoCheckResult]: Loop: 13#L24-2true assume true; 10#L21-1true assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 16#L24true assume main_~tmp~0 % 256 != 0;main_#t~post4 := main_~x~0;main_~x~0 := main_#t~post4 + 1;havoc main_#t~post4; 13#L24-2true [2018-11-10 03:40:10,810 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:40:10,811 INFO L82 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 1 times [2018-11-10 03:40:10,812 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:40:10,812 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:40:10,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:10,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:40:10,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:10,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:10,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:10,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:40:10,867 INFO L82 PathProgramCache]: Analyzing trace with hash 55804, now seen corresponding path program 1 times [2018-11-10 03:40:10,868 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:40:10,868 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:40:10,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:10,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:40:10,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:10,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:10,879 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:40:10,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1271629424, now seen corresponding path program 1 times [2018-11-10 03:40:10,880 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:40:10,880 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:40:10,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:10,881 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:40:10,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:10,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:10,945 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 03:40:10,946 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 03:40:10,946 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 03:40:10,946 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 03:40:10,946 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 03:40:10,946 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:40:10,946 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 03:40:10,947 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 03:40:10,947 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-10 03:40:10,947 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 03:40:10,947 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 03:40:10,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:10,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:11,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:11,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:11,120 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 03:40:11,120 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:40:11,128 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 03:40:11,128 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:40:11,159 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 03:40:11,159 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 03:40:11,189 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 03:40:11,190 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 03:40:11,190 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 03:40:11,190 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 03:40:11,190 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 03:40:11,190 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 03:40:11,191 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:40:11,191 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 03:40:11,191 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 03:40:11,191 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-10 03:40:11,191 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 03:40:11,191 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 03:40:11,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:11,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:11,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:11,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:11,284 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 03:40:11,287 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 03:40:11,288 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 03:40:11,289 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:40:11,290 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 03:40:11,290 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:40:11,290 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:40:11,290 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:40:11,292 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 03:40:11,292 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 03:40:11,299 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 03:40:11,304 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 03:40:11,304 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 03:40:11,306 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 03:40:11,306 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 03:40:11,307 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 03:40:11,307 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2018-11-10 03:40:11,308 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 03:40:11,335 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:40:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:40:11,342 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:40:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:40:11,350 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:40:11,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:40:11,366 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 03:40:11,367 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 4 states. [2018-11-10 03:40:11,407 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 4 states. Result 46 states and 57 transitions. Complement of second has 8 states. [2018-11-10 03:40:11,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 03:40:11,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 03:40:11,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2018-11-10 03:40:11,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-10 03:40:11,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:40:11,411 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-10 03:40:11,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:40:11,411 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-10 03:40:11,412 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:40:11,412 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 57 transitions. [2018-11-10 03:40:11,413 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 03:40:11,416 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 15 states and 18 transitions. [2018-11-10 03:40:11,417 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2018-11-10 03:40:11,417 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-11-10 03:40:11,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2018-11-10 03:40:11,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 03:40:11,417 INFO L705 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2018-11-10 03:40:11,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2018-11-10 03:40:11,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-10 03:40:11,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-10 03:40:11,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2018-11-10 03:40:11,433 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2018-11-10 03:40:11,433 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2018-11-10 03:40:11,433 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 03:40:11,433 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2018-11-10 03:40:11,434 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 03:40:11,434 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 03:40:11,434 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 03:40:11,434 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:40:11,434 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 03:40:11,435 INFO L793 eck$LassoCheckResult]: Stem: 119#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 117#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 118#L17 assume !!(main_~x~0 > -100); 125#L18 assume !!(main_~x~0 < 200); 126#L19 assume !!(main_~z~0 > 100); 129#L20 assume !!(main_~z~0 < 200); 130#L24-2 assume true; 124#L21-1 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 127#L24 assume !(main_~tmp~0 % 256 != 0);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 120#L24-2 [2018-11-10 03:40:11,435 INFO L795 eck$LassoCheckResult]: Loop: 120#L24-2 assume true; 121#L21-1 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 131#L24 assume main_~tmp~0 % 256 != 0;main_#t~post4 := main_~x~0;main_~x~0 := main_#t~post4 + 1;havoc main_#t~post4; 120#L24-2 [2018-11-10 03:40:11,435 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:40:11,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1271629426, now seen corresponding path program 1 times [2018-11-10 03:40:11,435 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:40:11,435 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:40:11,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:11,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:40:11,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:11,442 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:40:11,442 INFO L82 PathProgramCache]: Analyzing trace with hash 55804, now seen corresponding path program 2 times [2018-11-10 03:40:11,442 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:40:11,443 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:40:11,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:11,443 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:40:11,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:11,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:11,447 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:40:11,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1500705259, now seen corresponding path program 1 times [2018-11-10 03:40:11,448 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:40:11,448 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:40:11,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:11,448 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 03:40:11,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:11,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:11,475 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 03:40:11,475 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 03:40:11,475 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 03:40:11,475 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 03:40:11,475 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 03:40:11,475 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:40:11,475 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 03:40:11,476 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 03:40:11,476 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration2_Loop [2018-11-10 03:40:11,476 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 03:40:11,476 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 03:40:11,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:11,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:11,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:11,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:11,552 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 03:40:11,552 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:40:11,561 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 03:40:11,561 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 03:40:11,569 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 03:40:11,569 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=64, ULTIMATE.start_main_#t~nondet3=64} Honda state: {ULTIMATE.start_main_~tmp~0=64, ULTIMATE.start_main_#t~nondet3=64} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:40:11,595 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 03:40:11,596 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 03:40:11,599 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 03:40:11,599 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:40:11,620 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 03:40:11,620 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:40:11,638 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 03:40:11,638 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 03:40:11,657 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 03:40:11,658 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 03:40:11,658 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 03:40:11,658 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 03:40:11,658 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 03:40:11,658 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 03:40:11,658 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:40:11,658 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 03:40:11,658 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 03:40:11,659 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration2_Loop [2018-11-10 03:40:11,659 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 03:40:11,659 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 03:40:11,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:11,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:11,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:11,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:11,755 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 03:40:11,756 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 03:40:11,756 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 03:40:11,757 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:40:11,757 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 03:40:11,757 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:40:11,757 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:40:11,757 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:40:11,758 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 03:40:11,758 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 03:40:11,760 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:40:11,760 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 03:40:11,761 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:40:11,761 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 03:40:11,761 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:40:11,761 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:40:11,761 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:40:11,762 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 03:40:11,762 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 03:40:11,767 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:40:11,767 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 [2018-11-10 03:40:11,768 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:40:11,768 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 03:40:11,768 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:40:11,768 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:40:11,768 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:40:11,769 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 03:40:11,769 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 03:40:11,772 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 03:40:11,774 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 03:40:11,774 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 03:40:11,774 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 03:40:11,775 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 03:40:11,775 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 03:40:11,775 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2018-11-10 03:40:11,775 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 03:40:11,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:40:11,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:40:11,810 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:40:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:40:11,814 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:40:11,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:40:11,821 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 03:40:11,821 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-11-10 03:40:11,847 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 21 states and 26 transitions. Complement of second has 7 states. [2018-11-10 03:40:11,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 03:40:11,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 03:40:11,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2018-11-10 03:40:11,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-10 03:40:11,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:40:11,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-10 03:40:11,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:40:11,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 6 letters. [2018-11-10 03:40:11,850 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:40:11,850 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2018-11-10 03:40:11,851 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 03:40:11,851 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 21 states and 26 transitions. [2018-11-10 03:40:11,851 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2018-11-10 03:40:11,852 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2018-11-10 03:40:11,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 26 transitions. [2018-11-10 03:40:11,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 03:40:11,852 INFO L705 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2018-11-10 03:40:11,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 26 transitions. [2018-11-10 03:40:11,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-10 03:40:11,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-10 03:40:11,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2018-11-10 03:40:11,854 INFO L728 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2018-11-10 03:40:11,855 INFO L608 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2018-11-10 03:40:11,855 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-10 03:40:11,855 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 26 transitions. [2018-11-10 03:40:11,855 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 03:40:11,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 03:40:11,855 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 03:40:11,856 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2018-11-10 03:40:11,856 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 03:40:11,856 INFO L793 eck$LassoCheckResult]: Stem: 215#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 213#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 214#L17 assume !!(main_~x~0 > -100); 221#L18 assume !!(main_~x~0 < 200); 222#L19 assume !!(main_~z~0 > 100); 225#L20 assume !!(main_~z~0 < 200); 226#L24-2 assume true; 230#L21-1 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 228#L24 assume !(main_~tmp~0 % 256 != 0);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 227#L24-2 assume true; 220#L21-1 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 223#L24 assume !(main_~tmp~0 % 256 != 0);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 216#L24-2 [2018-11-10 03:40:11,856 INFO L795 eck$LassoCheckResult]: Loop: 216#L24-2 assume true; 217#L21-1 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 229#L24 assume main_~tmp~0 % 256 != 0;main_#t~post4 := main_~x~0;main_~x~0 := main_#t~post4 + 1;havoc main_#t~post4; 216#L24-2 [2018-11-10 03:40:11,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:40:11,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1500705261, now seen corresponding path program 2 times [2018-11-10 03:40:11,857 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:40:11,857 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:40:11,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:11,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:40:11,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:11,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:11,871 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:40:11,871 INFO L82 PathProgramCache]: Analyzing trace with hash 55804, now seen corresponding path program 3 times [2018-11-10 03:40:11,871 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:40:11,871 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:40:11,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:11,872 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 03:40:11,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:11,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:40:11,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1195872400, now seen corresponding path program 2 times [2018-11-10 03:40:11,879 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:40:11,879 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:40:11,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:11,879 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 03:40:11,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:11,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:11,920 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 03:40:11,920 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 03:40:11,920 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 03:40:11,920 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 03:40:11,920 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 03:40:11,920 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:40:11,921 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 03:40:11,921 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 03:40:11,921 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration3_Loop [2018-11-10 03:40:11,921 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 03:40:11,921 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 03:40:11,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:11,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:11,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:11,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:11,974 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 03:40:11,974 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:40:11,988 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 03:40:11,988 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 03:40:12,004 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 03:40:12,004 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:40:12,008 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 03:40:12,009 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 03:40:12,015 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 03:40:12,015 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:40:12,047 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 03:40:12,048 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:40:12,080 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 03:40:12,081 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 03:40:12,098 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 03:40:12,099 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 03:40:12,099 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 03:40:12,099 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 03:40:12,099 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 03:40:12,099 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 03:40:12,100 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:40:12,100 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 03:40:12,100 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 03:40:12,100 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration3_Loop [2018-11-10 03:40:12,100 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 03:40:12,100 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 03:40:12,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:12,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:12,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:12,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:12,176 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 03:40:12,177 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 03:40:12,177 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 03:40:12,177 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:40:12,177 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 03:40:12,177 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:40:12,177 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:40:12,178 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:40:12,178 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 03:40:12,178 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 03:40:12,179 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:40:12,179 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 03:40:12,179 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:40:12,180 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 03:40:12,180 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:40:12,180 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:40:12,180 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:40:12,180 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 03:40:12,180 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 03:40:12,181 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:40:12,181 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 03:40:12,182 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:40:12,182 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 03:40:12,182 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:40:12,182 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:40:12,182 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:40:12,183 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 03:40:12,183 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 03:40:12,185 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 03:40:12,187 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 03:40:12,187 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 03:40:12,187 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 03:40:12,187 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 03:40:12,188 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 03:40:12,188 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2018-11-10 03:40:12,188 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 03:40:12,199 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:40:12,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:40:12,204 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:40:12,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:40:12,209 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:40:12,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:40:12,218 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 03:40:12,218 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 8 Second operand 4 states. [2018-11-10 03:40:12,228 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 25 states and 32 transitions. Complement of second has 7 states. [2018-11-10 03:40:12,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 03:40:12,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 03:40:12,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2018-11-10 03:40:12,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-10 03:40:12,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:40:12,229 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 03:40:12,237 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:40:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:40:12,243 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:40:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:40:12,247 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:40:12,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:40:12,254 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 03:40:12,254 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 8 Second operand 4 states. [2018-11-10 03:40:12,262 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 25 states and 32 transitions. Complement of second has 7 states. [2018-11-10 03:40:12,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 03:40:12,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 03:40:12,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2018-11-10 03:40:12,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-10 03:40:12,263 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:40:12,264 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 03:40:12,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:40:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:40:12,285 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:40:12,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:40:12,289 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:40:12,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:40:12,296 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 03:40:12,296 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 8 Second operand 4 states. [2018-11-10 03:40:12,304 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 26 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 28 states and 36 transitions. Complement of second has 6 states. [2018-11-10 03:40:12,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 03:40:12,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 03:40:12,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2018-11-10 03:40:12,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-10 03:40:12,305 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:40:12,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 15 letters. Loop has 3 letters. [2018-11-10 03:40:12,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:40:12,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 12 letters. Loop has 6 letters. [2018-11-10 03:40:12,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:40:12,306 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 36 transitions. [2018-11-10 03:40:12,308 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-10 03:40:12,309 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 24 states and 30 transitions. [2018-11-10 03:40:12,309 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-11-10 03:40:12,309 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2018-11-10 03:40:12,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 30 transitions. [2018-11-10 03:40:12,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 03:40:12,309 INFO L705 BuchiCegarLoop]: Abstraction has 24 states and 30 transitions. [2018-11-10 03:40:12,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 30 transitions. [2018-11-10 03:40:12,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 12. [2018-11-10 03:40:12,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-10 03:40:12,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2018-11-10 03:40:12,311 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2018-11-10 03:40:12,311 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2018-11-10 03:40:12,311 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-10 03:40:12,311 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 14 transitions. [2018-11-10 03:40:12,311 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-10 03:40:12,311 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 03:40:12,311 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 03:40:12,312 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-10 03:40:12,312 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 03:40:12,312 INFO L793 eck$LassoCheckResult]: Stem: 490#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 488#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 489#L17 assume !!(main_~x~0 > -100); 495#L18 assume !!(main_~x~0 < 200); 496#L19 assume !!(main_~z~0 > 100); 499#L20 assume !!(main_~z~0 < 200); 491#L24-2 [2018-11-10 03:40:12,312 INFO L795 eck$LassoCheckResult]: Loop: 491#L24-2 assume true; 493#L21-1 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 497#L24 assume !(main_~tmp~0 % 256 != 0);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 491#L24-2 [2018-11-10 03:40:12,312 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:40:12,312 INFO L82 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 2 times [2018-11-10 03:40:12,312 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:40:12,312 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:40:12,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:12,313 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 03:40:12,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:12,316 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:40:12,316 INFO L82 PathProgramCache]: Analyzing trace with hash 55806, now seen corresponding path program 1 times [2018-11-10 03:40:12,316 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:40:12,316 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:40:12,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:12,317 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 03:40:12,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:12,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:12,322 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:40:12,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1271629426, now seen corresponding path program 3 times [2018-11-10 03:40:12,322 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:40:12,322 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:40:12,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:12,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:40:12,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:40:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:12,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 03:40:12,349 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 03:40:12,350 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 03:40:12,350 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 03:40:12,350 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 03:40:12,350 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 03:40:12,350 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:40:12,350 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 03:40:12,350 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 03:40:12,350 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration4_Loop [2018-11-10 03:40:12,350 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 03:40:12,350 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 03:40:12,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:12,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:12,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:12,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:12,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:12,408 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 03:40:12,409 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:40:12,411 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 03:40:12,412 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 03:40:12,414 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 03:40:12,415 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6=0} Honda state: {ULTIMATE.start_main_#t~post6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:40:12,434 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 03:40:12,434 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 03:40:12,436 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 03:40:12,436 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5=0} Honda state: {ULTIMATE.start_main_#t~post5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:40:12,471 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 03:40:12,471 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 03:40:12,479 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 03:40:12,480 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=-256, ULTIMATE.start_main_#t~nondet3=-256} Honda state: {ULTIMATE.start_main_~tmp~0=-256, ULTIMATE.start_main_#t~nondet3=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:40:12,505 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 03:40:12,505 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66d6bf3a-e74b-4f4c-ad58-050fe9dc7c03/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:40:12,534 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 03:40:12,535 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 03:40:12,552 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 03:40:12,553 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 03:40:12,553 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 03:40:12,553 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 03:40:12,554 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 03:40:12,554 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 03:40:12,554 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 03:40:12,554 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 03:40:12,554 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 03:40:12,554 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration4_Loop [2018-11-10 03:40:12,554 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 03:40:12,554 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 03:40:12,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:12,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:12,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:12,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:12,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 03:40:12,614 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 03:40:12,614 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 03:40:12,615 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 03:40:12,615 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:40:12,615 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 03:40:12,616 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:40:12,616 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:40:12,616 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:40:12,616 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 03:40:12,616 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 03:40:12,617 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:40:12,617 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 03:40:12,618 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:40:12,618 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 03:40:12,618 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:40:12,618 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:40:12,618 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:40:12,619 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 03:40:12,619 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 03:40:12,621 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 03:40:12,621 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 03:40:12,621 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 03:40:12,621 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 03:40:12,622 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 03:40:12,622 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 03:40:12,622 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 03:40:12,622 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 03:40:12,622 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 03:40:12,624 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 03:40:12,626 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 03:40:12,626 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 03:40:12,627 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 03:40:12,631 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 03:40:12,631 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 03:40:12,631 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-11-10 03:40:12,631 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 03:40:12,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:40:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:40:12,643 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:40:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:40:12,646 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:40:12,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:40:12,652 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 03:40:12,652 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-11-10 03:40:12,663 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 22 states and 29 transitions. Complement of second has 6 states. [2018-11-10 03:40:12,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 03:40:12,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 03:40:12,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2018-11-10 03:40:12,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-10 03:40:12,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:40:12,665 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-10 03:40:12,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:40:12,665 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-10 03:40:12,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 03:40:12,665 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 29 transitions. [2018-11-10 03:40:12,666 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 03:40:12,666 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2018-11-10 03:40:12,666 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 03:40:12,666 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 03:40:12,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 03:40:12,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 03:40:12,666 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 03:40:12,666 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 03:40:12,666 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 03:40:12,666 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-10 03:40:12,666 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-10 03:40:12,666 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 03:40:12,666 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-10 03:40:12,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 03:40:12 BoogieIcfgContainer [2018-11-10 03:40:12,671 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 03:40:12,672 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 03:40:12,672 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 03:40:12,672 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 03:40:12,672 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:40:10" (3/4) ... [2018-11-10 03:40:12,675 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 03:40:12,675 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 03:40:12,676 INFO L168 Benchmark]: Toolchain (without parser) took 2327.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 960.9 MB in the beginning and 1.1 GB in the end (delta: -136.6 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. [2018-11-10 03:40:12,677 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:40:12,677 INFO L168 Benchmark]: CACSL2BoogieTranslator took 152.94 ms. Allocated memory is still 1.0 GB. Free memory was 960.9 MB in the beginning and 950.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 03:40:12,677 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.49 ms. Allocated memory is still 1.0 GB. Free memory is still 950.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:40:12,678 INFO L168 Benchmark]: Boogie Preprocessor took 11.43 ms. Allocated memory is still 1.0 GB. Free memory was 950.1 MB in the beginning and 944.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 03:40:12,678 INFO L168 Benchmark]: RCFGBuilder took 189.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -181.9 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-11-10 03:40:12,679 INFO L168 Benchmark]: BuchiAutomizer took 1945.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 11.5 GB. [2018-11-10 03:40:12,679 INFO L168 Benchmark]: Witness Printer took 3.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:40:12,681 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 152.94 ms. Allocated memory is still 1.0 GB. Free memory was 960.9 MB in the beginning and 950.1 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 20.49 ms. Allocated memory is still 1.0 GB. Free memory is still 950.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.43 ms. Allocated memory is still 1.0 GB. Free memory was 950.1 MB in the beginning and 944.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 189.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -181.9 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1945.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * x + 199 and consists of 5 locations. One deterministic module has affine ranking function -2 * x + 199 and consists of 4 locations. One deterministic module has affine ranking function z and consists of 4 locations. One nondeterministic module has affine ranking function -2 * x + 199 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 21 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 71 SDtfs, 69 SDslu, 23 SDs, 0 SdLazy, 43 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp47 ukn100 mio100 lsp100 div463 bol100 ite100 ukn100 eq148 hnf47 smp82 dnf100 smp100 tf106 neg97 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 18ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...