./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Log_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Log_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2d80b45a01c32727728c3a89e06c1e9a4dc4868b .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 21:42:16,853 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 21:42:16,854 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 21:42:16,861 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 21:42:16,862 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 21:42:16,862 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 21:42:16,863 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 21:42:16,864 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 21:42:16,865 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 21:42:16,865 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 21:42:16,866 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 21:42:16,866 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 21:42:16,867 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 21:42:16,867 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 21:42:16,868 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 21:42:16,869 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 21:42:16,870 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 21:42:16,871 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 21:42:16,872 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 21:42:16,873 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 21:42:16,874 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 21:42:16,875 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 21:42:16,876 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 21:42:16,877 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 21:42:16,877 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 21:42:16,878 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 21:42:16,879 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 21:42:16,879 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 21:42:16,880 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 21:42:16,880 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 21:42:16,881 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 21:42:16,881 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 21:42:16,881 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 21:42:16,881 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 21:42:16,882 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 21:42:16,882 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 21:42:16,883 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-22 21:42:16,894 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 21:42:16,894 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 21:42:16,895 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-22 21:42:16,895 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-22 21:42:16,895 INFO L133 SettingsManager]: * Use SBE=true [2018-11-22 21:42:16,895 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-22 21:42:16,895 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-22 21:42:16,895 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-22 21:42:16,895 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-22 21:42:16,896 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-22 21:42:16,896 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-22 21:42:16,896 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 21:42:16,896 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-22 21:42:16,896 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 21:42:16,896 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 21:42:16,897 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-22 21:42:16,898 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-22 21:42:16,898 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-22 21:42:16,898 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 21:42:16,898 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-22 21:42:16,898 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 21:42:16,898 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-22 21:42:16,898 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 21:42:16,898 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 21:42:16,898 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-22 21:42:16,899 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 21:42:16,899 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-22 21:42:16,899 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-22 21:42:16,899 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-22 21:42:16,899 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_2cad4fcb-89e0-45df-b42f-505213fc9969/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d80b45a01c32727728c3a89e06c1e9a4dc4868b [2018-11-22 21:42:16,921 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 21:42:16,929 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 21:42:16,931 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 21:42:16,932 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 21:42:16,932 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 21:42:16,933 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/Log_true-termination_true-no-overflow.c [2018-11-22 21:42:16,968 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/bin-2019/uautomizer/data/0ac88f9b5/b24709fef2414d7ea86d756396163351/FLAGd97acdc76 [2018-11-22 21:42:17,364 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 21:42:17,365 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/sv-benchmarks/c/termination-restricted-15/Log_true-termination_true-no-overflow.c [2018-11-22 21:42:17,368 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/bin-2019/uautomizer/data/0ac88f9b5/b24709fef2414d7ea86d756396163351/FLAGd97acdc76 [2018-11-22 21:42:17,380 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/bin-2019/uautomizer/data/0ac88f9b5/b24709fef2414d7ea86d756396163351 [2018-11-22 21:42:17,382 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 21:42:17,383 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 21:42:17,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 21:42:17,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 21:42:17,387 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 21:42:17,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:42:17" (1/1) ... [2018-11-22 21:42:17,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@337624aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:17, skipping insertion in model container [2018-11-22 21:42:17,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:42:17" (1/1) ... [2018-11-22 21:42:17,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 21:42:17,411 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 21:42:17,524 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:42:17,527 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 21:42:17,536 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:42:17,545 INFO L195 MainTranslator]: Completed translation [2018-11-22 21:42:17,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:17 WrapperNode [2018-11-22 21:42:17,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 21:42:17,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 21:42:17,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 21:42:17,546 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 21:42:17,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:17" (1/1) ... [2018-11-22 21:42:17,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:17" (1/1) ... [2018-11-22 21:42:17,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 21:42:17,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 21:42:17,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 21:42:17,567 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 21:42:17,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:17" (1/1) ... [2018-11-22 21:42:17,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:17" (1/1) ... [2018-11-22 21:42:17,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:17" (1/1) ... [2018-11-22 21:42:17,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:17" (1/1) ... [2018-11-22 21:42:17,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:17" (1/1) ... [2018-11-22 21:42:17,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:17" (1/1) ... [2018-11-22 21:42:17,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:17" (1/1) ... [2018-11-22 21:42:17,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 21:42:17,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 21:42:17,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 21:42:17,580 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 21:42:17,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/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 [2018-11-22 21:42:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 21:42:17,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 21:42:17,721 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 21:42:17,721 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-22 21:42:17,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:42:17 BoogieIcfgContainer [2018-11-22 21:42:17,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 21:42:17,722 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-22 21:42:17,722 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-22 21:42:17,724 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-22 21:42:17,725 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 21:42:17,725 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.11 09:42:17" (1/3) ... [2018-11-22 21:42:17,725 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@282251a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 09:42:17, skipping insertion in model container [2018-11-22 21:42:17,725 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 21:42:17,726 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:17" (2/3) ... [2018-11-22 21:42:17,726 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@282251a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 09:42:17, skipping insertion in model container [2018-11-22 21:42:17,726 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 21:42:17,726 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:42:17" (3/3) ... [2018-11-22 21:42:17,727 INFO L375 chiAutomizerObserver]: Analyzing ICFG Log_true-termination_true-no-overflow.c [2018-11-22 21:42:17,760 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-22 21:42:17,760 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-22 21:42:17,760 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-22 21:42:17,761 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-22 21:42:17,761 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 21:42:17,761 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 21:42:17,761 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-22 21:42:17,761 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 21:42:17,761 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-22 21:42:17,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-22 21:42:17,784 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-22 21:42:17,784 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 21:42:17,784 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 21:42:17,788 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-22 21:42:17,788 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-22 21:42:17,788 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-22 21:42:17,788 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-22 21:42:17,789 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-22 21:42:17,789 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 21:42:17,789 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 21:42:17,789 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-22 21:42:17,789 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-22 21:42:17,794 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 6#L13-2true [2018-11-22 21:42:17,794 INFO L796 eck$LassoCheckResult]: Loop: 6#L13-2true assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 3#L17-2true assume !(main_~xtmp~0 > 1); 10#L17-3true main_~x~0 := main_~xtmp~0;main_~res~0 := 1 + main_~res~0; 6#L13-2true [2018-11-22 21:42:17,797 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:42:17,797 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-22 21:42:17,799 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:42:17,799 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:42:17,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:42:17,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:42:17,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:42:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:42:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:42:17,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:42:17,858 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2018-11-22 21:42:17,858 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:42:17,858 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:42:17,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:42:17,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:42:17,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:42:17,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:42:17,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:42:17,920 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:42:17,920 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-22 21:42:17,923 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-22 21:42:17,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-22 21:42:17,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 21:42:17,934 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2018-11-22 21:42:17,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:42:17,947 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2018-11-22 21:42:17,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-22 21:42:17,949 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2018-11-22 21:42:17,949 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-22 21:42:17,951 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 5 states and 6 transitions. [2018-11-22 21:42:17,952 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-22 21:42:17,952 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-22 21:42:17,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. [2018-11-22 21:42:17,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-22 21:42:17,953 INFO L705 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2018-11-22 21:42:17,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. [2018-11-22 21:42:17,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-11-22 21:42:17,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-22 21:42:17,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2018-11-22 21:42:17,974 INFO L728 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2018-11-22 21:42:17,975 INFO L608 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2018-11-22 21:42:17,975 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-22 21:42:17,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2018-11-22 21:42:17,975 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-22 21:42:17,975 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 21:42:17,975 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 21:42:17,976 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-22 21:42:17,976 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-22 21:42:17,976 INFO L794 eck$LassoCheckResult]: Stem: 28#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 29#L13-2 [2018-11-22 21:42:17,976 INFO L796 eck$LassoCheckResult]: Loop: 29#L13-2 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 26#L17-2 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; 27#L17-2 assume !(main_~xtmp~0 > 1); 30#L17-3 main_~x~0 := main_~xtmp~0;main_~res~0 := 1 + main_~res~0; 29#L13-2 [2018-11-22 21:42:17,978 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:42:17,978 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2018-11-22 21:42:17,978 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:42:17,978 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:42:17,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:42:17,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:42:17,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:42:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:42:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:42:17,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:42:17,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1240240, now seen corresponding path program 1 times [2018-11-22 21:42:17,983 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:42:17,983 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:42:17,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:42:17,984 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 21:42:17,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:42:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:42:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:42:17,997 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:42:17,997 INFO L82 PathProgramCache]: Analyzing trace with hash 29869391, now seen corresponding path program 1 times [2018-11-22 21:42:17,997 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:42:17,997 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:42:17,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:42:17,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:42:18,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:42:18,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:42:18,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:42:18,126 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 21:42:18,127 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 21:42:18,127 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 21:42:18,127 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 21:42:18,127 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 21:42:18,127 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:42:18,128 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 21:42:18,128 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 21:42:18,128 INFO L131 ssoRankerPreferences]: Filename of dumped script: Log_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-22 21:42:18,128 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 21:42:18,128 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 21:42:18,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:18,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:18,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:18,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:18,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:18,270 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 21:42:18,270 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/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 [2018-11-22 21:42:18,274 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:42:18,274 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:42:18,293 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 21:42:18,294 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/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 [2018-11-22 21:42:18,298 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:42:18,298 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:42:18,313 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 21:42:18,313 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/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 [2018-11-22 21:42:18,315 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:42:18,316 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/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 [2018-11-22 21:42:18,332 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 21:42:18,332 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:42:18,343 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 21:42:18,343 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~0=0} Honda state: {ULTIMATE.start_main_~res~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~res~0=7}, {ULTIMATE.start_main_~res~0=-7}, {ULTIMATE.start_main_~res~0=1}] Lambdas: [2, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/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 [2018-11-22 21:42:18,358 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:42:18,358 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:42:18,360 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 21:42:18,360 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~restmp~0=1} Honda state: {ULTIMATE.start_main_~restmp~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/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 [2018-11-22 21:42:18,374 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:42:18,375 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/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 [2018-11-22 21:42:18,392 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 21:42:18,392 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:42:18,671 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 21:42:18,673 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 21:42:18,673 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 21:42:18,673 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 21:42:18,673 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 21:42:18,673 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 21:42:18,673 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:42:18,673 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 21:42:18,673 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 21:42:18,673 INFO L131 ssoRankerPreferences]: Filename of dumped script: Log_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-22 21:42:18,673 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 21:42:18,673 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 21:42:18,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:18,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:18,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:18,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:18,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:18,755 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 21:42:18,759 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 21:42:18,761 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 [2018-11-22 21:42:18,762 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:42:18,762 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:42:18,762 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:42:18,762 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:42:18,766 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 21:42:18,766 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 21:42:18,771 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 21:42:18,771 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 21:42:18,772 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:42:18,772 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:42:18,772 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:42:18,772 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:42:18,775 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 21:42:18,775 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 21:42:18,782 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 21:42:18,783 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 [2018-11-22 21:42:18,783 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:42:18,783 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 21:42:18,784 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:42:18,784 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:42:18,784 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:42:18,784 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 21:42:18,784 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 21:42:18,787 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 21:42:18,787 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 [2018-11-22 21:42:18,788 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:42:18,788 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 21:42:18,788 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:42:18,788 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:42:18,788 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:42:18,789 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 21:42:18,789 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 21:42:18,791 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 21:42:18,792 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 [2018-11-22 21:42:18,792 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:42:18,794 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 21:42:18,794 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:42:18,794 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:42:18,794 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:42:18,795 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 21:42:18,795 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 21:42:18,803 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 21:42:18,807 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 21:42:18,807 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-22 21:42:18,809 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 21:42:18,809 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 21:42:18,809 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 21:42:18,809 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-22 21:42:18,810 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 21:42:18,837 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:42:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:42:18,842 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:42:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:42:18,849 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:42:18,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-22 21:42:18,865 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-22 21:42:18,865 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2 Second operand 4 states. [2018-11-22 21:42:18,940 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 9 states and 12 transitions. Complement of second has 6 states. [2018-11-22 21:42:18,941 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 [2018-11-22 21:42:18,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-22 21:42:18,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2018-11-22 21:42:18,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 1 letters. Loop has 4 letters. [2018-11-22 21:42:18,943 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:42:18,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-22 21:42:18,943 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:42:18,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 1 letters. Loop has 8 letters. [2018-11-22 21:42:18,944 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:42:18,944 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 12 transitions. [2018-11-22 21:42:18,944 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-22 21:42:18,945 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 11 transitions. [2018-11-22 21:42:18,945 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-11-22 21:42:18,945 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-22 21:42:18,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2018-11-22 21:42:18,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 21:42:18,945 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-11-22 21:42:18,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2018-11-22 21:42:18,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-11-22 21:42:18,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-22 21:42:18,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2018-11-22 21:42:18,946 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-22 21:42:18,946 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-22 21:42:18,946 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-22 21:42:18,947 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2018-11-22 21:42:18,947 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-22 21:42:18,947 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 21:42:18,947 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 21:42:18,947 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-22 21:42:18,947 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-22 21:42:18,948 INFO L794 eck$LassoCheckResult]: Stem: 84#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 85#L13-2 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 81#L17-2 [2018-11-22 21:42:18,948 INFO L796 eck$LassoCheckResult]: Loop: 81#L17-2 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; 81#L17-2 [2018-11-22 21:42:18,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:42:18,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-22 21:42:18,948 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:42:18,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:42:18,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:42:18,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:42:18,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:42:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:42:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:42:18,952 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:42:18,952 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2018-11-22 21:42:18,953 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:42:18,953 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:42:18,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:42:18,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:42:18,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:42:18,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:42:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:42:18,957 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:42:18,957 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2018-11-22 21:42:18,957 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:42:18,957 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:42:18,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:42:18,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:42:18,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:42:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:42:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:42:18,972 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 21:42:18,972 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 21:42:18,972 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 21:42:18,972 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 21:42:18,972 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 21:42:18,973 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:42:18,973 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 21:42:18,973 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 21:42:18,973 INFO L131 ssoRankerPreferences]: Filename of dumped script: Log_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-22 21:42:18,973 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 21:42:18,973 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 21:42:18,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:18,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:18,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:18,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:19,012 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 21:42:19,012 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/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 [2018-11-22 21:42:19,025 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:42:19,025 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:42:19,041 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 21:42:19,041 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/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 [2018-11-22 21:42:19,044 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:42:19,044 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/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 [2018-11-22 21:42:19,071 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 21:42:19,071 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:42:19,080 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 21:42:19,080 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~restmp~0=0} Honda state: {ULTIMATE.start_main_~restmp~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~restmp~0=0}, {ULTIMATE.start_main_~restmp~0=-5}, {ULTIMATE.start_main_~restmp~0=6}] Lambdas: [0, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/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 [2018-11-22 21:42:19,096 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:42:19,096 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:42:19,112 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 21:42:19,112 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/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 [2018-11-22 21:42:19,116 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:42:19,117 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/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 [2018-11-22 21:42:19,142 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 21:42:19,143 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:42:19,159 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 21:42:19,160 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 21:42:19,160 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 21:42:19,160 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 21:42:19,160 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 21:42:19,160 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 21:42:19,160 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:42:19,160 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 21:42:19,160 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 21:42:19,161 INFO L131 ssoRankerPreferences]: Filename of dumped script: Log_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-22 21:42:19,161 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 21:42:19,161 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 21:42:19,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:19,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:19,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:19,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:19,220 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 21:42:19,221 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 21:42:19,222 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 21:42:19,222 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:42:19,223 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:42:19,223 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:42:19,223 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:42:19,224 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 21:42:19,224 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 21:42:19,227 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 21:42:19,227 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 [2018-11-22 21:42:19,228 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:42:19,228 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 21:42:19,228 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:42:19,228 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:42:19,228 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:42:19,229 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 21:42:19,229 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 21:42:19,231 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 21:42:19,231 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 [2018-11-22 21:42:19,232 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:42:19,232 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:42:19,232 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:42:19,233 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:42:19,234 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 21:42:19,234 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 21:42:19,238 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 21:42:19,238 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 [2018-11-22 21:42:19,239 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:42:19,239 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 21:42:19,239 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:42:19,239 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:42:19,239 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:42:19,240 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 21:42:19,240 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 21:42:19,242 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 21:42:19,245 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 21:42:19,245 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-22 21:42:19,245 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 21:42:19,246 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 21:42:19,246 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 21:42:19,246 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0) = 1*ULTIMATE.start_main_~xtmp~0 Supporting invariants [] [2018-11-22 21:42:19,246 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 21:42:19,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:42:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:42:19,282 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:42:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:42:19,288 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:42:19,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:42:19,288 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-22 21:42:19,288 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 2 states. [2018-11-22 21:42:19,298 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 15 states and 20 transitions. Complement of second has 5 states. [2018-11-22 21:42:19,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-22 21:42:19,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-22 21:42:19,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-22 21:42:19,298 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2018-11-22 21:42:19,299 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:42:19,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-22 21:42:19,299 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:42:19,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-22 21:42:19,299 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:42:19,299 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2018-11-22 21:42:19,299 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-22 21:42:19,300 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 15 transitions. [2018-11-22 21:42:19,300 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-11-22 21:42:19,300 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2018-11-22 21:42:19,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2018-11-22 21:42:19,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 21:42:19,301 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2018-11-22 21:42:19,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2018-11-22 21:42:19,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 7. [2018-11-22 21:42:19,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-22 21:42:19,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2018-11-22 21:42:19,301 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-11-22 21:42:19,302 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-11-22 21:42:19,302 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-22 21:42:19,302 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2018-11-22 21:42:19,302 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-22 21:42:19,302 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 21:42:19,302 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 21:42:19,302 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2018-11-22 21:42:19,302 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-22 21:42:19,302 INFO L794 eck$LassoCheckResult]: Stem: 135#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~xtmp~0, main_~res~0, main_~restmp~0;havoc main_~x~0;havoc main_~xtmp~0;havoc main_~res~0;havoc main_~restmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~res~0 := 0; 136#L13-2 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 133#L17-2 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; 134#L17-2 assume !(main_~xtmp~0 > 1); 138#L17-3 main_~x~0 := main_~xtmp~0;main_~res~0 := 1 + main_~res~0; 137#L13-2 assume !!(main_~x~0 > 1);main_~xtmp~0 := main_~x~0;main_~restmp~0 := 0; 132#L17-2 [2018-11-22 21:42:19,302 INFO L796 eck$LassoCheckResult]: Loop: 132#L17-2 assume !!(main_~xtmp~0 > 1);main_~xtmp~0 := main_~xtmp~0 - 2;main_~restmp~0 := 1 + main_~restmp~0; 132#L17-2 [2018-11-22 21:42:19,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:42:19,303 INFO L82 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 2 times [2018-11-22 21:42:19,303 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:42:19,303 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:42:19,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:42:19,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:42:19,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:42:19,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:42:19,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-22 21:42:19,321 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:42:19,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-22 21:42:19,321 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-22 21:42:19,322 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:42:19,322 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2018-11-22 21:42:19,322 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:42:19,322 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:42:19,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:42:19,323 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 21:42:19,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:42:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:42:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:42:19,337 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 21:42:19,338 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 21:42:19,338 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 21:42:19,338 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 21:42:19,338 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 21:42:19,338 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:42:19,338 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 21:42:19,338 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 21:42:19,338 INFO L131 ssoRankerPreferences]: Filename of dumped script: Log_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-22 21:42:19,338 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 21:42:19,338 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 21:42:19,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:19,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:19,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:19,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:19,385 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 21:42:19,385 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/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 [2018-11-22 21:42:19,386 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:42:19,387 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:42:19,402 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 21:42:19,402 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/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 [2018-11-22 21:42:19,405 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:42:19,405 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:42:19,420 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 21:42:19,420 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:42:19,423 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 21:42:19,423 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2cad4fcb-89e0-45df-b42f-505213fc9969/bin-2019/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:42:19,447 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 21:42:19,447 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 21:42:19,463 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 21:42:19,464 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 21:42:19,464 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 21:42:19,464 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 21:42:19,465 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 21:42:19,465 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 21:42:19,465 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 21:42:19,465 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 21:42:19,465 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 21:42:19,465 INFO L131 ssoRankerPreferences]: Filename of dumped script: Log_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-22 21:42:19,465 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 21:42:19,465 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 21:42:19,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:19,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:19,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:19,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 21:42:19,507 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 21:42:19,507 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 21:42:19,508 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 [2018-11-22 21:42:19,508 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:42:19,508 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:42:19,508 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:42:19,508 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:42:19,509 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 21:42:19,509 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 21:42:19,511 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 21:42:19,512 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 [2018-11-22 21:42:19,512 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 21:42:19,513 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 21:42:19,513 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 21:42:19,513 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 21:42:19,513 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 21:42:19,513 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 21:42:19,513 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 21:42:19,518 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 21:42:19,520 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 21:42:19,520 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-22 21:42:19,520 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 21:42:19,520 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 21:42:19,520 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 21:42:19,520 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0) = 1*ULTIMATE.start_main_~xtmp~0 Supporting invariants [] [2018-11-22 21:42:19,521 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 21:42:19,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:42:19,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:42:19,542 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:42:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:42:19,546 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:42:19,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:42:19,546 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-22 21:42:19,546 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-22 21:42:19,557 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 13 states and 17 transitions. Complement of second has 5 states. [2018-11-22 21:42:19,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-22 21:42:19,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-22 21:42:19,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-22 21:42:19,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2018-11-22 21:42:19,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:42:19,558 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 21:42:19,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:42:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:42:19,569 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:42:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:42:19,572 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:42:19,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:42:19,572 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-22 21:42:19,572 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-22 21:42:19,577 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 13 states and 17 transitions. Complement of second has 5 states. [2018-11-22 21:42:19,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-22 21:42:19,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-22 21:42:19,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-22 21:42:19,577 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2018-11-22 21:42:19,577 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:42:19,577 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 21:42:19,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:42:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:42:19,590 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:42:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:42:19,593 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:42:19,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:42:19,593 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 1 loop predicates [2018-11-22 21:42:19,593 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-22 21:42:19,600 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 10 states and 12 transitions. Complement of second has 4 states. [2018-11-22 21:42:19,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-22 21:42:19,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-22 21:42:19,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-22 21:42:19,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2018-11-22 21:42:19,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:42:19,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2018-11-22 21:42:19,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:42:19,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-22 21:42:19,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 21:42:19,602 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2018-11-22 21:42:19,602 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-22 21:42:19,602 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2018-11-22 21:42:19,603 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-22 21:42:19,603 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-22 21:42:19,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-22 21:42:19,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-22 21:42:19,603 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 21:42:19,603 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 21:42:19,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-22 21:42:19,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-22 21:42:19,603 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2018-11-22 21:42:19,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:42:19,603 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-22 21:42:19,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-22 21:42:19,604 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-22 21:42:19,604 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-22 21:42:19,604 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-22 21:42:19,604 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-22 21:42:19,604 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-22 21:42:19,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-22 21:42:19,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-22 21:42:19,604 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 21:42:19,604 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 21:42:19,605 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 21:42:19,605 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-22 21:42:19,605 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-22 21:42:19,605 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-22 21:42:19,605 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-22 21:42:19,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.11 09:42:19 BoogieIcfgContainer [2018-11-22 21:42:19,609 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-22 21:42:19,609 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 21:42:19,609 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 21:42:19,609 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 21:42:19,610 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:42:17" (3/4) ... [2018-11-22 21:42:19,612 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-22 21:42:19,612 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 21:42:19,612 INFO L168 Benchmark]: Toolchain (without parser) took 2229.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 959.1 MB in the beginning and 837.1 MB in the end (delta: 122.0 MB). Peak memory consumption was 244.7 MB. Max. memory is 11.5 GB. [2018-11-22 21:42:19,613 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:42:19,613 INFO L168 Benchmark]: CACSL2BoogieTranslator took 161.99 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-22 21:42:19,614 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.83 ms. Allocated memory is still 1.0 GB. Free memory was 948.3 MB in the beginning and 945.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-22 21:42:19,614 INFO L168 Benchmark]: Boogie Preprocessor took 12.11 ms. Allocated memory is still 1.0 GB. Free memory is still 945.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:42:19,614 INFO L168 Benchmark]: RCFGBuilder took 142.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -160.2 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-22 21:42:19,615 INFO L168 Benchmark]: BuchiAutomizer took 1886.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 837.1 MB in the end (delta: 268.7 MB). Peak memory consumption was 268.7 MB. Max. memory is 11.5 GB. [2018-11-22 21:42:19,615 INFO L168 Benchmark]: Witness Printer took 2.58 ms. Allocated memory is still 1.2 GB. Free memory is still 837.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:42:19,618 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 161.99 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.83 ms. Allocated memory is still 1.0 GB. Free memory was 948.3 MB in the beginning and 945.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.11 ms. Allocated memory is still 1.0 GB. Free memory is still 945.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 142.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -160.2 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1886.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 837.1 MB in the end (delta: 268.7 MB). Peak memory consumption was 268.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.58 ms. Allocated memory is still 1.2 GB. Free memory is still 837.1 MB. 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function xtmp and consists of 3 locations. One nondeterministic module has affine ranking function xtmp and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 26 SDtfs, 21 SDslu, 6 SDs, 0 SdLazy, 35 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax169 hnf99 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 11ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...