./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_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_234fbef8-bc95-49cc-b094-b58eaf801f1d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_234fbef8-bc95-49cc-b094-b58eaf801f1d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_234fbef8-bc95-49cc-b094-b58eaf801f1d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_234fbef8-bc95-49cc-b094-b58eaf801f1d/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_234fbef8-bc95-49cc-b094-b58eaf801f1d/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_234fbef8-bc95-49cc-b094-b58eaf801f1d/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 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 05:04:53,936 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 05:04:53,937 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 05:04:53,946 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 05:04:53,946 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 05:04:53,947 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 05:04:53,948 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 05:04:53,950 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 05:04:53,951 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 05:04:53,951 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 05:04:53,952 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 05:04:53,952 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 05:04:53,954 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 05:04:53,954 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 05:04:53,955 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 05:04:53,956 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 05:04:53,957 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 05:04:53,959 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 05:04:53,960 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 05:04:53,962 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 05:04:53,963 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 05:04:53,964 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 05:04:53,966 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 05:04:53,967 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 05:04:53,967 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 05:04:53,967 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 05:04:53,968 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 05:04:53,969 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 05:04:53,969 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 05:04:53,971 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 05:04:53,971 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 05:04:53,972 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 05:04:53,972 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 05:04:53,972 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 05:04:53,973 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 05:04:53,974 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 05:04:53,974 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_234fbef8-bc95-49cc-b094-b58eaf801f1d/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-23 05:04:53,983 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 05:04:53,983 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 05:04:53,984 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 05:04:53,984 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 05:04:53,985 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 05:04:53,985 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 05:04:53,985 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 05:04:53,985 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 05:04:53,985 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 05:04:53,986 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 05:04:53,986 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 05:04:53,986 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 05:04:53,986 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 05:04:53,986 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 05:04:53,986 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 05:04:53,986 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 05:04:53,987 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 05:04:53,987 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 05:04:53,987 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 05:04:53,987 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 05:04:53,987 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 05:04:53,987 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 05:04:53,987 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 05:04:53,987 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 05:04:53,988 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 05:04:53,988 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 05:04:53,988 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 05:04:53,988 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 05:04:53,989 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 05:04:53,989 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_234fbef8-bc95-49cc-b094-b58eaf801f1d/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 -> 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 [2018-11-23 05:04:54,024 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 05:04:54,033 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 05:04:54,036 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 05:04:54,048 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 05:04:54,048 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 05:04:54,049 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_234fbef8-bc95-49cc-b094-b58eaf801f1d/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c [2018-11-23 05:04:54,116 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_234fbef8-bc95-49cc-b094-b58eaf801f1d/bin-2019/uautomizer/data/3916ff584/f2c031bf93d74557b62a0616446b1285/FLAG67a065c10 [2018-11-23 05:04:54,467 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 05:04:54,468 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_234fbef8-bc95-49cc-b094-b58eaf801f1d/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c [2018-11-23 05:04:54,472 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_234fbef8-bc95-49cc-b094-b58eaf801f1d/bin-2019/uautomizer/data/3916ff584/f2c031bf93d74557b62a0616446b1285/FLAG67a065c10 [2018-11-23 05:04:54,487 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_234fbef8-bc95-49cc-b094-b58eaf801f1d/bin-2019/uautomizer/data/3916ff584/f2c031bf93d74557b62a0616446b1285 [2018-11-23 05:04:54,489 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 05:04:54,491 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 05:04:54,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 05:04:54,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 05:04:54,502 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 05:04:54,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:04:54" (1/1) ... [2018-11-23 05:04:54,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c516a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:54, skipping insertion in model container [2018-11-23 05:04:54,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:04:54" (1/1) ... [2018-11-23 05:04:54,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 05:04:54,525 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 05:04:54,654 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:04:54,656 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 05:04:54,667 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:04:54,677 INFO L195 MainTranslator]: Completed translation [2018-11-23 05:04:54,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:54 WrapperNode [2018-11-23 05:04:54,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 05:04:54,678 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 05:04:54,678 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 05:04:54,679 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 05:04:54,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:54" (1/1) ... [2018-11-23 05:04:54,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:54" (1/1) ... [2018-11-23 05:04:54,706 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 05:04:54,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 05:04:54,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 05:04:54,707 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 05:04:54,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:54" (1/1) ... [2018-11-23 05:04:54,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:54" (1/1) ... [2018-11-23 05:04:54,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:54" (1/1) ... [2018-11-23 05:04:54,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:54" (1/1) ... [2018-11-23 05:04:54,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:54" (1/1) ... [2018-11-23 05:04:54,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:54" (1/1) ... [2018-11-23 05:04:54,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:54" (1/1) ... [2018-11-23 05:04:54,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 05:04:54,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 05:04:54,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 05:04:54,723 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 05:04:54,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_234fbef8-bc95-49cc-b094-b58eaf801f1d/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 [2018-11-23 05:04:54,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 05:04:54,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 05:04:54,996 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 05:04:54,996 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 05:04:54,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:04:54 BoogieIcfgContainer [2018-11-23 05:04:54,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 05:04:54,997 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 05:04:54,997 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 05:04:55,000 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 05:04:55,001 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 05:04:55,001 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 05:04:54" (1/3) ... [2018-11-23 05:04:55,002 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57d553b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 05:04:55, skipping insertion in model container [2018-11-23 05:04:55,002 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 05:04:55,002 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:04:54" (2/3) ... [2018-11-23 05:04:55,002 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57d553b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 05:04:55, skipping insertion in model container [2018-11-23 05:04:55,003 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 05:04:55,003 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:04:54" (3/3) ... [2018-11-23 05:04:55,004 INFO L375 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c [2018-11-23 05:04:55,063 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 05:04:55,063 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 05:04:55,063 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 05:04:55,064 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 05:04:55,064 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 05:04:55,064 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 05:04:55,064 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 05:04:55,064 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 05:04:55,064 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 05:04:55,094 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-11-23 05:04:55,117 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-23 05:04:55,117 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 05:04:55,117 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 05:04:55,124 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-23 05:04:55,124 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 05:04:55,124 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 05:04:55,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-11-23 05:04:55,125 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-23 05:04:55,125 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 05:04:55,125 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 05:04:55,126 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-23 05:04:55,126 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-23 05:04:55,133 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 8#L18true assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 5#L19-2true [2018-11-23 05:04:55,134 INFO L796 eck$LassoCheckResult]: Loop: 5#L19-2true assume !!(main_~x~0 >= 0);main_~y~0 := 1; 3#L21true assume !(main_~y~0 < main_~x~0); 12#L21-1true main_~x~0 := main_~x~0 - 1; 5#L19-2true [2018-11-23 05:04:55,138 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:04:55,139 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2018-11-23 05:04:55,140 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:04:55,141 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:04:55,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:04:55,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:04:55,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:04:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:04:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:04:55,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:04:55,278 INFO L82 PathProgramCache]: Analyzing trace with hash 43246, now seen corresponding path program 1 times [2018-11-23 05:04:55,278 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:04:55,278 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:04:55,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:04:55,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:04:55,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:04:55,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:04:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:04:55,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:04:55,289 INFO L82 PathProgramCache]: Analyzing trace with hash 29685291, now seen corresponding path program 1 times [2018-11-23 05:04:55,289 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:04:55,289 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:04:55,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:04:55,290 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:04:55,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:04:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:04:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:04:55,386 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 05:04:55,387 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 05:04:55,387 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 05:04:55,387 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 05:04:55,387 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 05:04:55,387 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 05:04:55,387 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 05:04:55,387 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 05:04:55,388 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-23 05:04:55,388 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 05:04:55,388 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 05:04:55,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:04:55,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:04:55,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:04:55,594 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 05:04:55,595 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_234fbef8-bc95-49cc-b094-b58eaf801f1d/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 [2018-11-23 05:04:55,612 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 05:04:55,613 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 05:04:55,649 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 05:04:55,649 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_234fbef8-bc95-49cc-b094-b58eaf801f1d/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 [2018-11-23 05:04:55,652 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 05:04:55,652 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 05:04:55,673 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 05:04:55,673 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_234fbef8-bc95-49cc-b094-b58eaf801f1d/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 [2018-11-23 05:04:55,677 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 05:04:55,677 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_234fbef8-bc95-49cc-b094-b58eaf801f1d/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 [2018-11-23 05:04:55,706 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 05:04:55,706 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 05:04:55,728 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 05:04:55,729 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 05:04:55,730 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 05:04:55,730 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 05:04:55,730 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 05:04:55,730 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 05:04:55,730 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 05:04:55,730 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 05:04:55,730 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 05:04:55,730 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-23 05:04:55,730 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 05:04:55,730 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 05:04:55,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:04:55,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:04:55,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:04:55,912 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 05:04:55,915 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 05:04:55,917 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 [2018-11-23 05:04:55,918 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 05:04:55,918 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 05:04:55,918 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 05:04:55,918 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 05:04:55,922 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 05:04:55,922 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 05:04:55,929 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 05:04:55,929 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 [2018-11-23 05:04:55,930 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 05:04:55,930 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 05:04:55,930 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 05:04:55,930 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 05:04:55,930 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 05:04:55,931 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 05:04:55,932 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 05:04:55,938 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 05:04:55,943 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 05:04:55,944 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 05:04:55,945 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 05:04:55,946 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 05:04:55,946 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 05:04:55,946 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-11-23 05:04:55,947 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 05:04:55,969 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:04:55,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:04:55,979 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:04:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:04:55,989 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:04:56,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:04:56,032 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 05:04:56,034 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 3 states. [2018-11-23 05:04:56,118 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 3 states. Result 30 states and 44 transitions. Complement of second has 7 states. [2018-11-23 05:04:56,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-23 05:04:56,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 05:04:56,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2018-11-23 05:04:56,123 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 2 letters. Loop has 3 letters. [2018-11-23 05:04:56,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 05:04:56,125 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-23 05:04:56,125 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 05:04:56,125 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 2 letters. Loop has 6 letters. [2018-11-23 05:04:56,125 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 05:04:56,126 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 44 transitions. [2018-11-23 05:04:56,129 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 05:04:56,132 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 9 states and 13 transitions. [2018-11-23 05:04:56,133 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-23 05:04:56,133 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-23 05:04:56,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2018-11-23 05:04:56,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 05:04:56,134 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2018-11-23 05:04:56,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2018-11-23 05:04:56,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-11-23 05:04:56,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-11-23 05:04:56,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2018-11-23 05:04:56,159 INFO L728 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2018-11-23 05:04:56,160 INFO L608 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2018-11-23 05:04:56,160 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 05:04:56,160 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 13 transitions. [2018-11-23 05:04:56,160 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 05:04:56,160 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 05:04:56,161 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 05:04:56,161 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-23 05:04:56,161 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 05:04:56,161 INFO L794 eck$LassoCheckResult]: Stem: 87#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 88#L18 assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 89#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 82#L21 assume main_~y~0 < main_~x~0; 83#L22-2 [2018-11-23 05:04:56,161 INFO L796 eck$LassoCheckResult]: Loop: 83#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 83#L22-2 [2018-11-23 05:04:56,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:04:56,162 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2018-11-23 05:04:56,162 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:04:56,162 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:04:56,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:04:56,163 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:04:56,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:04:56,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:04:56,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:04:56,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:04:56,173 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2018-11-23 05:04:56,173 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:04:56,173 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:04:56,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:04:56,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:04:56,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:04:56,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:04:56,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:04:56,178 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:04:56,179 INFO L82 PathProgramCache]: Analyzing trace with hash 29684850, now seen corresponding path program 1 times [2018-11-23 05:04:56,179 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:04:56,179 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:04:56,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:04:56,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:04:56,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:04:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:04:56,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:04:56,231 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 05:04:56,231 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 05:04:56,231 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 05:04:56,232 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 05:04:56,232 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 05:04:56,232 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 05:04:56,232 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 05:04:56,232 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 05:04:56,232 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c_Iteration2_Lasso [2018-11-23 05:04:56,232 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 05:04:56,232 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 05:04:56,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:04:56,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:04:56,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:04:56,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:04:56,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:04:56,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:04:56,383 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 05:04:56,384 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_234fbef8-bc95-49cc-b094-b58eaf801f1d/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 [2018-11-23 05:04:56,387 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 05:04:56,387 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 05:04:56,410 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 05:04:56,410 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_234fbef8-bc95-49cc-b094-b58eaf801f1d/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 [2018-11-23 05:04:56,426 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 05:04:56,426 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 05:04:56,445 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 05:04:56,445 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_234fbef8-bc95-49cc-b094-b58eaf801f1d/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 [2018-11-23 05:04:56,479 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 05:04:56,479 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 05:04:56,482 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 05:04:56,482 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_234fbef8-bc95-49cc-b094-b58eaf801f1d/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 [2018-11-23 05:04:56,509 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 05:04:56,509 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_234fbef8-bc95-49cc-b094-b58eaf801f1d/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 [2018-11-23 05:04:56,544 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 05:04:56,544 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 05:05:13,057 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-23 05:05:13,063 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 05:05:13,064 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 05:05:13,064 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 05:05:13,064 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 05:05:13,064 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 05:05:13,064 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 05:05:13,064 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 05:05:13,064 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 05:05:13,064 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c_Iteration2_Lasso [2018-11-23 05:05:13,065 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 05:05:13,065 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 05:05:13,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:05:13,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:05:13,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:05:13,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:05:13,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:05:13,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:05:13,155 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 05:05:13,156 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 05:05:13,156 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 [2018-11-23 05:05:13,157 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 05:05:13,157 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 05:05:13,157 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 05:05:13,157 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 05:05:13,158 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 05:05:13,158 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 05:05:13,158 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 05:05:13,159 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 05:05:13,160 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 [2018-11-23 05:05:13,160 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 05:05:13,161 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 05:05:13,161 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 05:05:13,161 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 05:05:13,164 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 05:05:13,164 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 05:05:13,207 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 05:05:13,234 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-11-23 05:05:13,235 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-23 05:05:13,235 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 05:05:13,237 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-23 05:05:13,237 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 05:05:13,238 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2018-11-23 05:05:13,245 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-23 05:05:13,279 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:05:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:05:13,288 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:05:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:05:13,295 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:05:13,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:05:13,295 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2018-11-23 05:05:13,296 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-11-23 05:05:13,374 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 20 states and 28 transitions. Complement of second has 6 states. [2018-11-23 05:05:13,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 05:05:13,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 05:05:13,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2018-11-23 05:05:13,377 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 4 letters. Loop has 1 letters. [2018-11-23 05:05:13,378 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 05:05:13,378 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 1 letters. [2018-11-23 05:05:13,378 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 05:05:13,378 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-23 05:05:13,378 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 05:05:13,378 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2018-11-23 05:05:13,380 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 05:05:13,380 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 15 states and 21 transitions. [2018-11-23 05:05:13,381 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-23 05:05:13,381 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-23 05:05:13,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 21 transitions. [2018-11-23 05:05:13,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 05:05:13,381 INFO L705 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2018-11-23 05:05:13,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 21 transitions. [2018-11-23 05:05:13,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2018-11-23 05:05:13,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-23 05:05:13,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2018-11-23 05:05:13,383 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2018-11-23 05:05:13,383 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2018-11-23 05:05:13,383 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-23 05:05:13,383 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2018-11-23 05:05:13,383 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 05:05:13,384 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 05:05:13,384 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 05:05:13,384 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2018-11-23 05:05:13,384 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 05:05:13,384 INFO L794 eck$LassoCheckResult]: Stem: 162#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 163#L18 assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 164#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 165#L21 assume main_~y~0 < main_~x~0; 160#L22-2 assume !(main_~y~0 < main_~x~0); 161#L21-1 main_~x~0 := main_~x~0 - 1; 167#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 157#L21 assume main_~y~0 < main_~x~0; 158#L22-2 [2018-11-23 05:05:13,384 INFO L796 eck$LassoCheckResult]: Loop: 158#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 158#L22-2 [2018-11-23 05:05:13,386 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:05:13,386 INFO L82 PathProgramCache]: Analyzing trace with hash -421925037, now seen corresponding path program 1 times [2018-11-23 05:05:13,386 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:05:13,386 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:05:13,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:05:13,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:05:13,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:05:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:05:13,422 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:05:13,423 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:05:13,424 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 05:05:13,426 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-23 05:05:13,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:05:13,426 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 2 times [2018-11-23 05:05:13,426 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:05:13,426 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:05:13,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:05:13,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:05:13,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:05:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:05:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:05:13,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 05:05:13,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 05:05:13,455 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-11-23 05:05:13,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:05:13,490 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2018-11-23 05:05:13,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 05:05:13,492 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2018-11-23 05:05:13,492 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 05:05:13,493 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 18 transitions. [2018-11-23 05:05:13,493 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-11-23 05:05:13,494 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-23 05:05:13,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2018-11-23 05:05:13,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 05:05:13,494 INFO L705 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2018-11-23 05:05:13,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2018-11-23 05:05:13,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2018-11-23 05:05:13,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-23 05:05:13,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2018-11-23 05:05:13,497 INFO L728 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2018-11-23 05:05:13,497 INFO L608 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2018-11-23 05:05:13,497 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-23 05:05:13,497 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2018-11-23 05:05:13,498 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 05:05:13,498 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 05:05:13,498 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 05:05:13,499 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2018-11-23 05:05:13,499 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 05:05:13,499 INFO L794 eck$LassoCheckResult]: Stem: 194#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 195#L18 assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 196#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 191#L21 assume main_~y~0 < main_~x~0; 192#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 198#L22-2 assume !(main_~y~0 < main_~x~0); 201#L21-1 main_~x~0 := main_~x~0 - 1; 199#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 189#L21 assume main_~y~0 < main_~x~0; 190#L22-2 [2018-11-23 05:05:13,499 INFO L796 eck$LassoCheckResult]: Loop: 190#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 190#L22-2 [2018-11-23 05:05:13,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:05:13,499 INFO L82 PathProgramCache]: Analyzing trace with hash -193177154, now seen corresponding path program 1 times [2018-11-23 05:05:13,499 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:05:13,499 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:05:13,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:05:13,500 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 05:05:13,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:05:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:05:13,568 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:05:13,568 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 05:05:13,568 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_234fbef8-bc95-49cc-b094-b58eaf801f1d/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 05:05:13,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:05:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:05:13,586 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:05:13,614 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:05:13,629 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 05:05:13,629 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-11-23 05:05:13,629 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-23 05:05:13,629 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:05:13,629 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 3 times [2018-11-23 05:05:13,630 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:05:13,630 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:05:13,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:05:13,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:05:13,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:05:13,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:05:13,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:05:13,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 05:05:13,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-23 05:05:13,648 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. cyclomatic complexity: 7 Second operand 8 states. [2018-11-23 05:05:13,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:05:13,779 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2018-11-23 05:05:13,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 05:05:13,779 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2018-11-23 05:05:13,780 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 05:05:13,780 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 14 states and 16 transitions. [2018-11-23 05:05:13,781 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-23 05:05:13,781 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-23 05:05:13,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 16 transitions. [2018-11-23 05:05:13,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 05:05:13,781 INFO L705 BuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2018-11-23 05:05:13,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 16 transitions. [2018-11-23 05:05:13,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 11. [2018-11-23 05:05:13,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-23 05:05:13,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2018-11-23 05:05:13,783 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2018-11-23 05:05:13,783 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2018-11-23 05:05:13,783 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-23 05:05:13,783 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2018-11-23 05:05:13,783 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 05:05:13,783 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 05:05:13,783 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 05:05:13,783 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1] [2018-11-23 05:05:13,783 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 05:05:13,784 INFO L794 eck$LassoCheckResult]: Stem: 276#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 277#L18 assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 278#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 274#L21 assume main_~y~0 < main_~x~0; 275#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 281#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 282#L22-2 assume !(main_~y~0 < main_~x~0); 280#L21-1 main_~x~0 := main_~x~0 - 1; 279#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 272#L21 assume main_~y~0 < main_~x~0; 273#L22-2 [2018-11-23 05:05:13,784 INFO L796 eck$LassoCheckResult]: Loop: 273#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 273#L22-2 [2018-11-23 05:05:13,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:05:13,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1691927373, now seen corresponding path program 2 times [2018-11-23 05:05:13,784 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:05:13,784 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:05:13,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:05:13,785 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 05:05:13,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:05:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:05:13,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:05:13,792 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:05:13,793 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 4 times [2018-11-23 05:05:13,793 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:05:13,793 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:05:13,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:05:13,794 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 05:05:13,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:05:13,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:05:13,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:05:13,797 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:05:13,797 INFO L82 PathProgramCache]: Analyzing trace with hash -910140986, now seen corresponding path program 3 times [2018-11-23 05:05:13,797 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:05:13,797 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:05:13,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:05:13,798 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 05:05:13,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:05:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:05:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:05:13,902 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 05:05:13,903 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 05:05:13,903 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 05:05:13,903 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 05:05:13,903 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 05:05:13,903 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 05:05:13,903 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 05:05:13,903 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 05:05:13,903 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c_Iteration5_Lasso [2018-11-23 05:05:13,903 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 05:05:13,904 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 05:05:13,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:05:13,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:05:13,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:05:13,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:05:13,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:05:13,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:05:13,996 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 05:05:13,996 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_234fbef8-bc95-49cc-b094-b58eaf801f1d/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 [2018-11-23 05:05:13,998 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 05:05:13,998 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 05:05:14,005 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 05:05:14,005 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_234fbef8-bc95-49cc-b094-b58eaf801f1d/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 [2018-11-23 05:05:14,022 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 05:05:14,022 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 05:05:14,024 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 05:05:14,024 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_234fbef8-bc95-49cc-b094-b58eaf801f1d/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 [2018-11-23 05:05:14,039 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 05:05:14,039 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 05:05:14,041 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 05:05:14,041 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_234fbef8-bc95-49cc-b094-b58eaf801f1d/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 [2018-11-23 05:05:14,057 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 05:05:14,057 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 05:05:14,079 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 05:05:14,079 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_234fbef8-bc95-49cc-b094-b58eaf801f1d/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 [2018-11-23 05:05:14,083 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 05:05:14,083 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_234fbef8-bc95-49cc-b094-b58eaf801f1d/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 [2018-11-23 05:05:14,101 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 05:05:14,101 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 05:05:14,172 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 05:05:14,173 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 05:05:14,173 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 05:05:14,173 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 05:05:14,173 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 05:05:14,173 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 05:05:14,174 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 05:05:14,174 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 05:05:14,174 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 05:05:14,174 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c_Iteration5_Lasso [2018-11-23 05:05:14,174 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 05:05:14,174 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 05:05:14,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:05:14,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:05:14,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:05:14,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:05:14,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:05:14,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 05:05:14,232 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 05:05:14,232 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 05:05:14,233 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 05:05:14,233 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 05:05:14,233 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 05:05:14,234 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 05:05:14,234 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 05:05:14,234 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 05:05:14,234 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 05:05:14,234 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 05:05:14,235 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 05:05:14,235 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 [2018-11-23 05:05:14,236 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 05:05:14,236 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 05:05:14,236 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 05:05:14,236 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 05:05:14,239 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 05:05:14,240 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 05:05:14,240 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 05:05:14,240 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 05:05:14,241 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 05:05:14,241 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 05:05:14,241 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 05:05:14,241 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 05:05:14,242 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 05:05:14,242 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 05:05:14,242 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 05:05:14,242 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 05:05:14,243 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 05:05:14,243 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 [2018-11-23 05:05:14,243 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 05:05:14,244 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 05:05:14,244 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 05:05:14,244 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 05:05:14,245 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 05:05:14,245 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 05:05:14,247 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 05:05:14,247 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 [2018-11-23 05:05:14,247 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 05:05:14,248 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 05:05:14,248 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 05:05:14,248 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 05:05:14,250 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 05:05:14,250 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 05:05:14,268 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 05:05:14,277 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-23 05:05:14,277 INFO L444 ModelExtractionUtils]: 4 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-11-23 05:05:14,277 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 05:05:14,278 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-23 05:05:14,279 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 05:05:14,279 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2018-11-23 05:05:14,289 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-23 05:05:14,343 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:05:14,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:05:14,347 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:05:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:05:14,350 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:05:14,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:05:14,351 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2018-11-23 05:05:14,351 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2018-11-23 05:05:14,379 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 19 states and 23 transitions. Complement of second has 6 states. [2018-11-23 05:05:14,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 05:05:14,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 05:05:14,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2018-11-23 05:05:14,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 10 letters. Loop has 1 letters. [2018-11-23 05:05:14,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 05:05:14,380 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 05:05:14,410 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:05:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:05:14,418 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:05:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:05:14,421 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:05:14,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:05:14,422 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2018-11-23 05:05:14,422 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2018-11-23 05:05:14,439 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 19 states and 23 transitions. Complement of second has 6 states. [2018-11-23 05:05:14,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 05:05:14,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 05:05:14,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2018-11-23 05:05:14,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 10 letters. Loop has 1 letters. [2018-11-23 05:05:14,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 05:05:14,441 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 05:05:14,494 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:05:14,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:05:14,499 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:05:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:05:14,501 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:05:14,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:05:14,502 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2018-11-23 05:05:14,502 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2018-11-23 05:05:14,525 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 14 states and 16 transitions. Complement of second has 5 states. [2018-11-23 05:05:14,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 05:05:14,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 05:05:14,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2018-11-23 05:05:14,526 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 1 letters. [2018-11-23 05:05:14,526 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 05:05:14,526 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 11 letters. Loop has 1 letters. [2018-11-23 05:05:14,526 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 05:05:14,526 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 2 letters. [2018-11-23 05:05:14,526 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 05:05:14,526 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2018-11-23 05:05:14,527 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 05:05:14,527 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2018-11-23 05:05:14,527 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 05:05:14,527 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 05:05:14,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 05:05:14,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 05:05:14,527 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 05:05:14,527 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 05:05:14,528 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 05:05:14,528 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-23 05:05:14,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 05:05:14,528 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 05:05:14,528 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 05:05:14,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 05:05:14 BoogieIcfgContainer [2018-11-23 05:05:14,533 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 05:05:14,533 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 05:05:14,533 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 05:05:14,533 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 05:05:14,534 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:04:54" (3/4) ... [2018-11-23 05:05:14,536 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 05:05:14,536 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 05:05:14,537 INFO L168 Benchmark]: Toolchain (without parser) took 20047.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 219.2 MB). Free memory was 953.1 MB in the beginning and 1.2 GB in the end (delta: -248.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:05:14,538 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:05:14,538 INFO L168 Benchmark]: CACSL2BoogieTranslator took 184.39 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 942.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 05:05:14,538 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.81 ms. Allocated memory is still 1.0 GB. Free memory was 942.3 MB in the beginning and 939.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 05:05:14,539 INFO L168 Benchmark]: Boogie Preprocessor took 16.06 ms. Allocated memory is still 1.0 GB. Free memory is still 939.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:05:14,539 INFO L168 Benchmark]: RCFGBuilder took 273.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 939.6 MB in the beginning and 1.1 GB in the end (delta: -196.7 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-23 05:05:14,539 INFO L168 Benchmark]: BuchiAutomizer took 19536.09 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -65.5 MB). Peak memory consumption was 30.4 kB. Max. memory is 11.5 GB. [2018-11-23 05:05:14,540 INFO L168 Benchmark]: Witness Printer took 3.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:05:14,544 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 184.39 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 942.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.81 ms. Allocated memory is still 1.0 GB. Free memory was 942.3 MB in the beginning and 939.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.06 ms. Allocated memory is still 1.0 GB. Free memory is still 939.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 273.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 939.6 MB in the beginning and 1.1 GB in the end (delta: -196.7 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 19536.09 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -65.5 MB). Peak memory consumption was 30.4 kB. Max. memory is 11.5 GB. * Witness Printer took 3.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 5 locations. One deterministic module has affine ranking function -1 * y + x and consists of 4 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 19.4s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 18.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 35 SDtfs, 47 SDslu, 12 SDs, 0 SdLazy, 103 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN2 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax158 hnf98 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf92 smp100 dnf100 smp100 tf102 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 16.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...