./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_680a75f6-0925-4638-ba69-c3c80f270bbb/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_680a75f6-0925-4638-ba69-c3c80f270bbb/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_680a75f6-0925-4638-ba69-c3c80f270bbb/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_680a75f6-0925-4638-ba69-c3c80f270bbb/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_680a75f6-0925-4638-ba69-c3c80f270bbb/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_680a75f6-0925-4638-ba69-c3c80f270bbb/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 f560e32afd5a40adf4a98abbf810cb377947c4f4 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 08:14:13,248 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 08:14:13,249 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 08:14:13,255 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 08:14:13,255 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 08:14:13,256 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 08:14:13,256 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 08:14:13,257 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 08:14:13,258 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 08:14:13,258 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 08:14:13,259 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 08:14:13,259 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 08:14:13,259 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 08:14:13,260 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 08:14:13,260 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 08:14:13,261 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 08:14:13,261 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 08:14:13,262 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 08:14:13,263 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 08:14:13,264 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 08:14:13,264 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 08:14:13,265 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 08:14:13,266 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 08:14:13,266 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 08:14:13,266 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 08:14:13,267 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 08:14:13,267 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 08:14:13,267 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 08:14:13,268 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 08:14:13,268 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 08:14:13,268 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 08:14:13,269 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 08:14:13,269 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 08:14:13,269 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 08:14:13,269 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 08:14:13,270 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 08:14:13,270 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_680a75f6-0925-4638-ba69-c3c80f270bbb/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-09 08:14:13,277 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 08:14:13,277 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 08:14:13,278 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 08:14:13,278 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 08:14:13,278 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 08:14:13,278 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-09 08:14:13,278 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-09 08:14:13,279 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-09 08:14:13,279 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-09 08:14:13,279 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-09 08:14:13,279 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-09 08:14:13,279 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 08:14:13,279 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 08:14:13,279 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 08:14:13,279 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 08:14:13,279 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-09 08:14:13,279 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-09 08:14:13,279 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-09 08:14:13,279 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 08:14:13,280 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-09 08:14:13,280 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 08:14:13,280 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-09 08:14:13,280 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 08:14:13,280 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 08:14:13,280 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-09 08:14:13,280 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 08:14:13,280 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 08:14:13,280 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-09 08:14:13,281 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-09 08:14:13,281 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_680a75f6-0925-4638-ba69-c3c80f270bbb/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 -> f560e32afd5a40adf4a98abbf810cb377947c4f4 [2018-12-09 08:14:13,298 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 08:14:13,305 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 08:14:13,307 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 08:14:13,308 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 08:14:13,308 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 08:14:13,309 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_680a75f6-0925-4638-ba69-c3c80f270bbb/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c [2018-12-09 08:14:13,345 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_680a75f6-0925-4638-ba69-c3c80f270bbb/bin-2019/uautomizer/data/a17921342/f86bcec70c7648f499ab12e829fac708/FLAG45ba3cd71 [2018-12-09 08:14:13,768 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 08:14:13,768 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_680a75f6-0925-4638-ba69-c3c80f270bbb/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c [2018-12-09 08:14:13,772 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_680a75f6-0925-4638-ba69-c3c80f270bbb/bin-2019/uautomizer/data/a17921342/f86bcec70c7648f499ab12e829fac708/FLAG45ba3cd71 [2018-12-09 08:14:13,780 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_680a75f6-0925-4638-ba69-c3c80f270bbb/bin-2019/uautomizer/data/a17921342/f86bcec70c7648f499ab12e829fac708 [2018-12-09 08:14:13,781 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 08:14:13,782 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 08:14:13,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 08:14:13,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 08:14:13,785 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 08:14:13,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:14:13" (1/1) ... [2018-12-09 08:14:13,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fd2551a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:13, skipping insertion in model container [2018-12-09 08:14:13,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:14:13" (1/1) ... [2018-12-09 08:14:13,791 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 08:14:13,802 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 08:14:13,890 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 08:14:13,892 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 08:14:13,900 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 08:14:13,908 INFO L195 MainTranslator]: Completed translation [2018-12-09 08:14:13,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:13 WrapperNode [2018-12-09 08:14:13,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 08:14:13,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 08:14:13,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 08:14:13,909 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 08:14:13,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:13" (1/1) ... [2018-12-09 08:14:13,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:13" (1/1) ... [2018-12-09 08:14:13,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 08:14:13,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 08:14:13,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 08:14:13,930 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 08:14:13,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:13" (1/1) ... [2018-12-09 08:14:13,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:13" (1/1) ... [2018-12-09 08:14:13,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:13" (1/1) ... [2018-12-09 08:14:13,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:13" (1/1) ... [2018-12-09 08:14:13,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:13" (1/1) ... [2018-12-09 08:14:13,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:13" (1/1) ... [2018-12-09 08:14:13,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:13" (1/1) ... [2018-12-09 08:14:13,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 08:14:13,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 08:14:13,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 08:14:13,941 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 08:14:13,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_680a75f6-0925-4638-ba69-c3c80f270bbb/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 [2018-12-09 08:14:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 08:14:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 08:14:14,075 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 08:14:14,075 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-09 08:14:14,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:14:14 BoogieIcfgContainer [2018-12-09 08:14:14,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 08:14:14,076 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-09 08:14:14,076 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-09 08:14:14,078 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-09 08:14:14,079 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 08:14:14,079 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.12 08:14:13" (1/3) ... [2018-12-09 08:14:14,079 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55ba8eb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 08:14:14, skipping insertion in model container [2018-12-09 08:14:14,080 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 08:14:14,080 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:13" (2/3) ... [2018-12-09 08:14:14,080 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55ba8eb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 08:14:14, skipping insertion in model container [2018-12-09 08:14:14,080 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 08:14:14,080 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:14:14" (3/3) ... [2018-12-09 08:14:14,081 INFO L375 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c [2018-12-09 08:14:14,114 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 08:14:14,114 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-09 08:14:14,115 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-09 08:14:14,115 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-09 08:14:14,115 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 08:14:14,115 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 08:14:14,115 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-09 08:14:14,115 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 08:14:14,115 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-09 08:14:14,123 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-09 08:14:14,135 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-09 08:14:14,135 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 08:14:14,136 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 08:14:14,140 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-09 08:14:14,140 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 08:14:14,140 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-09 08:14:14,140 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-09 08:14:14,140 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-09 08:14:14,140 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 08:14:14,141 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 08:14:14,141 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-09 08:14:14,141 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 08:14:14,145 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L17true assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := main_~n~0; 8#L20-2true [2018-12-09 08:14:14,146 INFO L796 eck$LassoCheckResult]: Loop: 8#L20-2true assume !!(main_~i~0 > 0); 10#L20true assume main_~i~0 < main_~m~0;main_~i~0 := main_~i~0 - 1; 8#L20-2true [2018-12-09 08:14:14,149 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:14:14,149 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2018-12-09 08:14:14,150 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 08:14:14,151 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 08:14:14,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:14:14,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:14:14,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:14:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:14:14,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:14:14,211 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:14:14,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2018-12-09 08:14:14,211 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 08:14:14,212 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 08:14:14,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:14:14,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:14:14,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:14:14,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:14:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:14:14,217 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:14:14,217 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2018-12-09 08:14:14,217 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 08:14:14,217 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 08:14:14,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:14:14,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:14:14,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:14:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:14:14,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:14:14,252 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 08:14:14,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 08:14:14,277 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 08:14:14,278 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 08:14:14,278 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 08:14:14,278 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 08:14:14,279 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 08:14:14,279 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 08:14:14,279 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 08:14:14,279 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 08:14:14,279 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c_Iteration1_Loop [2018-12-09 08:14:14,279 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 08:14:14,279 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 08:14:14,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:14,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:14,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:14,358 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 08:14:14,359 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_680a75f6-0925-4638-ba69-c3c80f270bbb/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 [2018-12-09 08:14:14,362 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 08:14:14,362 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 08:14:14,381 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 08:14:14,382 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_680a75f6-0925-4638-ba69-c3c80f270bbb/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 [2018-12-09 08:14:14,385 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 08:14:14,385 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 08:14:14,405 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 08:14:14,405 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_680a75f6-0925-4638-ba69-c3c80f270bbb/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 [2018-12-09 08:14:14,408 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 08:14:14,408 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_680a75f6-0925-4638-ba69-c3c80f270bbb/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 [2018-12-09 08:14:14,424 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 08:14:14,424 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 08:14:14,443 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 08:14:14,444 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 08:14:14,444 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 08:14:14,444 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 08:14:14,444 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 08:14:14,444 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 08:14:14,444 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 08:14:14,444 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 08:14:14,444 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 08:14:14,444 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c_Iteration1_Loop [2018-12-09 08:14:14,444 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 08:14:14,444 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 08:14:14,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:14,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:14,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:14,481 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 08:14:14,484 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 08:14:14,486 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 [2018-12-09 08:14:14,486 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 08:14:14,487 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 08:14:14,487 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 08:14:14,487 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 08:14:14,489 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 08:14:14,490 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 08:14:14,493 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 08:14:14,493 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 [2018-12-09 08:14:14,494 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 08:14:14,494 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 08:14:14,494 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 08:14:14,494 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 08:14:14,495 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 08:14:14,495 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 08:14:14,499 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 08:14:14,500 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 [2018-12-09 08:14:14,500 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 08:14:14,500 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 08:14:14,500 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 08:14:14,500 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 08:14:14,501 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 08:14:14,501 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 08:14:14,501 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 08:14:14,505 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 08:14:14,507 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 08:14:14,507 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-09 08:14:14,508 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 08:14:14,508 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 08:14:14,509 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 08:14:14,509 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-12-09 08:14:14,510 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 08:14:14,529 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:14:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:14:14,536 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 08:14:14,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:14:14,542 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 08:14:14,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:14:14,557 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 [2018-12-09 08:14:14,558 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-12-09 08:14:14,583 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 28 states and 35 transitions. Complement of second has 8 states. [2018-12-09 08:14:14,583 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 [2018-12-09 08:14:14,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-09 08:14:14,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2018-12-09 08:14:14,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2018-12-09 08:14:14,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 08:14:14,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2018-12-09 08:14:14,587 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 08:14:14,587 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2018-12-09 08:14:14,587 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 08:14:14,587 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2018-12-09 08:14:14,589 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-09 08:14:14,591 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2018-12-09 08:14:14,592 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-12-09 08:14:14,592 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-12-09 08:14:14,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2018-12-09 08:14:14,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 08:14:14,592 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-12-09 08:14:14,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2018-12-09 08:14:14,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-12-09 08:14:14,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-12-09 08:14:14,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2018-12-09 08:14:14,608 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-12-09 08:14:14,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 08:14:14,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 08:14:14,610 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. Second operand 3 states. [2018-12-09 08:14:14,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 08:14:14,617 INFO L93 Difference]: Finished difference Result 7 states and 8 transitions. [2018-12-09 08:14:14,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 08:14:14,618 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 8 transitions. [2018-12-09 08:14:14,618 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-09 08:14:14,619 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 7 transitions. [2018-12-09 08:14:14,619 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-12-09 08:14:14,619 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-12-09 08:14:14,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2018-12-09 08:14:14,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 08:14:14,619 INFO L705 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-12-09 08:14:14,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2018-12-09 08:14:14,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-12-09 08:14:14,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-12-09 08:14:14,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2018-12-09 08:14:14,620 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-12-09 08:14:14,620 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-12-09 08:14:14,620 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-09 08:14:14,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2018-12-09 08:14:14,620 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-09 08:14:14,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 08:14:14,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 08:14:14,621 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-12-09 08:14:14,621 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 08:14:14,621 INFO L794 eck$LassoCheckResult]: Stem: 92#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 93#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := main_~n~0; 94#L20-2 assume !!(main_~i~0 > 0); 97#L20 assume !(main_~i~0 < main_~m~0);main_~i~0 := main_~i~0 - main_~m~0; 95#L20-2 [2018-12-09 08:14:14,621 INFO L796 eck$LassoCheckResult]: Loop: 95#L20-2 assume !!(main_~i~0 > 0); 96#L20 assume main_~i~0 < main_~m~0;main_~i~0 := main_~i~0 - 1; 95#L20-2 [2018-12-09 08:14:14,621 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:14:14,621 INFO L82 PathProgramCache]: Analyzing trace with hash 957577, now seen corresponding path program 1 times [2018-12-09 08:14:14,621 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 08:14:14,621 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 08:14:14,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:14:14,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:14:14,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:14:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:14:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:14:14,628 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:14:14,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 2 times [2018-12-09 08:14:14,628 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 08:14:14,628 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 08:14:14,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:14:14,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:14:14,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:14:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:14:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:14:14,633 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:14:14,633 INFO L82 PathProgramCache]: Analyzing trace with hash 920231916, now seen corresponding path program 1 times [2018-12-09 08:14:14,633 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 08:14:14,633 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 08:14:14,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:14:14,634 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 08:14:14,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:14:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:14:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:14:14,648 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 08:14:14,648 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 08:14:14,648 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 08:14:14,648 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 08:14:14,648 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 08:14:14,648 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 08:14:14,648 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 08:14:14,648 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 08:14:14,648 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c_Iteration2_Loop [2018-12-09 08:14:14,648 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 08:14:14,648 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 08:14:14,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:14,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:14,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:14,687 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 08:14:14,688 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_680a75f6-0925-4638-ba69-c3c80f270bbb/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 [2018-12-09 08:14:14,691 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 08:14:14,691 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 08:14:14,715 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 08:14:14,715 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_680a75f6-0925-4638-ba69-c3c80f270bbb/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 [2018-12-09 08:14:14,717 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 08:14:14,717 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 08:14:14,732 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 08:14:14,732 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_680a75f6-0925-4638-ba69-c3c80f270bbb/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 [2018-12-09 08:14:14,734 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 08:14:14,735 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_680a75f6-0925-4638-ba69-c3c80f270bbb/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 [2018-12-09 08:14:14,750 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 08:14:14,750 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 08:14:14,766 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 08:14:14,767 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 08:14:14,767 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 08:14:14,768 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 08:14:14,768 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 08:14:14,768 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 08:14:14,768 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 08:14:14,768 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 08:14:14,768 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 08:14:14,768 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c_Iteration2_Loop [2018-12-09 08:14:14,768 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 08:14:14,768 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 08:14:14,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:14,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:14,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:14,834 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 08:14:14,835 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 08:14:14,835 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 [2018-12-09 08:14:14,836 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 08:14:14,836 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 08:14:14,836 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 08:14:14,836 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 08:14:14,838 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 08:14:14,838 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 08:14:14,842 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 08:14:14,842 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 [2018-12-09 08:14:14,842 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 08:14:14,843 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 08:14:14,843 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 08:14:14,843 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 08:14:14,844 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 08:14:14,845 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 08:14:14,849 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 08:14:14,850 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 [2018-12-09 08:14:14,850 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 08:14:14,850 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 08:14:14,850 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 08:14:14,851 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 08:14:14,851 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 08:14:14,851 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 08:14:14,852 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 08:14:14,855 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 08:14:14,858 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 08:14:14,858 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-09 08:14:14,858 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 08:14:14,859 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 08:14:14,859 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 08:14:14,859 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-12-09 08:14:14,859 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 08:14:14,874 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:14:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:14:14,879 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 08:14:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:14:14,882 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 08:14:14,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:14:14,893 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 [2018-12-09 08:14:14,893 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand 3 states. [2018-12-09 08:14:14,901 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 10 states and 13 transitions. Complement of second has 5 states. [2018-12-09 08:14:14,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 08:14:14,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-09 08:14:14,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-12-09 08:14:14,902 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2018-12-09 08:14:14,902 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 08:14:14,902 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2018-12-09 08:14:14,902 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 08:14:14,903 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 4 letters. [2018-12-09 08:14:14,903 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 08:14:14,903 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2018-12-09 08:14:14,903 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-09 08:14:14,904 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 13 transitions. [2018-12-09 08:14:14,904 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-12-09 08:14:14,904 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-12-09 08:14:14,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2018-12-09 08:14:14,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 08:14:14,904 INFO L705 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2018-12-09 08:14:14,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2018-12-09 08:14:14,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-12-09 08:14:14,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-12-09 08:14:14,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2018-12-09 08:14:14,905 INFO L728 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2018-12-09 08:14:14,905 INFO L608 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2018-12-09 08:14:14,905 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-09 08:14:14,906 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2018-12-09 08:14:14,906 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-09 08:14:14,906 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 08:14:14,906 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 08:14:14,907 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2018-12-09 08:14:14,907 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 08:14:14,907 INFO L794 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 148#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := main_~n~0; 149#L20-2 assume !!(main_~i~0 > 0); 156#L20 assume !(main_~i~0 < main_~m~0);main_~i~0 := main_~i~0 - main_~m~0; 155#L20-2 assume !!(main_~i~0 > 0); 154#L20 assume !(main_~i~0 < main_~m~0);main_~i~0 := main_~i~0 - main_~m~0; 150#L20-2 [2018-12-09 08:14:14,907 INFO L796 eck$LassoCheckResult]: Loop: 150#L20-2 assume !!(main_~i~0 > 0); 151#L20 assume main_~i~0 < main_~m~0;main_~i~0 := main_~i~0 - 1; 150#L20-2 [2018-12-09 08:14:14,907 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:14:14,907 INFO L82 PathProgramCache]: Analyzing trace with hash 920231918, now seen corresponding path program 2 times [2018-12-09 08:14:14,907 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 08:14:14,907 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 08:14:14,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:14:14,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:14:14,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:14:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:14:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:14:14,916 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:14:14,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 3 times [2018-12-09 08:14:14,916 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 08:14:14,917 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 08:14:14,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:14:14,918 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 08:14:14,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:14:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:14:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:14:14,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:14:14,921 INFO L82 PathProgramCache]: Analyzing trace with hash -420389359, now seen corresponding path program 2 times [2018-12-09 08:14:14,922 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 08:14:14,922 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 08:14:14,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:14:14,923 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 08:14:14,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:14:14,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:14:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:14:14,940 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 08:14:14,940 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 08:14:14,940 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 08:14:14,940 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 08:14:14,940 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 08:14:14,940 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 08:14:14,940 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 08:14:14,940 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 08:14:14,940 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c_Iteration3_Loop [2018-12-09 08:14:14,941 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 08:14:14,941 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 08:14:14,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:14,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:14,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:14,972 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 08:14:14,972 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_680a75f6-0925-4638-ba69-c3c80f270bbb/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 [2018-12-09 08:14:14,974 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 08:14:14,974 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_680a75f6-0925-4638-ba69-c3c80f270bbb/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 08:14:15,002 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 08:14:15,002 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 08:14:15,021 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 08:14:15,022 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 08:14:15,022 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 08:14:15,022 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 08:14:15,022 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 08:14:15,022 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 08:14:15,022 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 08:14:15,022 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 08:14:15,022 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 08:14:15,023 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c_Iteration3_Loop [2018-12-09 08:14:15,023 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 08:14:15,023 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 08:14:15,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:15,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:15,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:15,065 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 08:14:15,066 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 08:14:15,066 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 08:14:15,066 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 08:14:15,066 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 08:14:15,067 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 08:14:15,067 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 08:14:15,067 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 08:14:15,067 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 08:14:15,067 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 08:14:15,070 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 08:14:15,071 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 08:14:15,071 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-09 08:14:15,072 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 08:14:15,072 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 08:14:15,072 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 08:14:15,072 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-12-09 08:14:15,072 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 08:14:15,082 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:14:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:14:15,086 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 08:14:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:14:15,089 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 08:14:15,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:14:15,096 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 [2018-12-09 08:14:15,096 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-12-09 08:14:15,103 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 12 states and 17 transitions. Complement of second has 5 states. [2018-12-09 08:14:15,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 08:14:15,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-09 08:14:15,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-12-09 08:14:15,104 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2018-12-09 08:14:15,104 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 08:14:15,104 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-09 08:14:15,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:14:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:14:15,116 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 08:14:15,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:14:15,118 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 08:14:15,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:14:15,130 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-09 08:14:15,130 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-12-09 08:14:15,135 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 12 states and 17 transitions. Complement of second has 5 states. [2018-12-09 08:14:15,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 08:14:15,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-09 08:14:15,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-12-09 08:14:15,136 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2018-12-09 08:14:15,136 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 08:14:15,136 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-09 08:14:15,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:14:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:14:15,149 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 08:14:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:14:15,151 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 08:14:15,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:14:15,157 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-09 08:14:15,157 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-12-09 08:14:15,165 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 14 states and 20 transitions. Complement of second has 4 states. [2018-12-09 08:14:15,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 08:14:15,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-09 08:14:15,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2018-12-09 08:14:15,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2018-12-09 08:14:15,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 08:14:15,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2018-12-09 08:14:15,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 08:14:15,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2018-12-09 08:14:15,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 08:14:15,166 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 20 transitions. [2018-12-09 08:14:15,167 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-09 08:14:15,167 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 16 transitions. [2018-12-09 08:14:15,167 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-12-09 08:14:15,167 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-12-09 08:14:15,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2018-12-09 08:14:15,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 08:14:15,167 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2018-12-09 08:14:15,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2018-12-09 08:14:15,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 7. [2018-12-09 08:14:15,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-12-09 08:14:15,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2018-12-09 08:14:15,168 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-12-09 08:14:15,168 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-12-09 08:14:15,168 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-09 08:14:15,168 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2018-12-09 08:14:15,169 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-09 08:14:15,169 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 08:14:15,169 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 08:14:15,169 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-09 08:14:15,169 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 08:14:15,169 INFO L794 eck$LassoCheckResult]: Stem: 299#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 300#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := main_~n~0; 301#L20-2 assume !!(main_~i~0 > 0); 302#L20 [2018-12-09 08:14:15,169 INFO L796 eck$LassoCheckResult]: Loop: 302#L20 assume !(main_~i~0 < main_~m~0);main_~i~0 := main_~i~0 - main_~m~0; 305#L20-2 assume !!(main_~i~0 > 0); 302#L20 [2018-12-09 08:14:15,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:14:15,169 INFO L82 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2018-12-09 08:14:15,169 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 08:14:15,169 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 08:14:15,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:14:15,170 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 08:14:15,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:14:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:14:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:14:15,174 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:14:15,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1532, now seen corresponding path program 1 times [2018-12-09 08:14:15,174 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 08:14:15,174 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 08:14:15,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:14:15,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:14:15,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:14:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:14:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:14:15,177 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:14:15,177 INFO L82 PathProgramCache]: Analyzing trace with hash 29684900, now seen corresponding path program 3 times [2018-12-09 08:14:15,177 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 08:14:15,177 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 08:14:15,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:14:15,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:14:15,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:14:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:14:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 08:14:15,211 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 08:14:15,211 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 08:14:15,211 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 08:14:15,211 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 08:14:15,211 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 08:14:15,211 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 08:14:15,211 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 08:14:15,211 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 08:14:15,211 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c_Iteration4_Lasso [2018-12-09 08:14:15,211 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 08:14:15,211 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 08:14:15,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:15,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:15,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:15,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:15,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:15,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:15,276 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 08:14:15,276 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_680a75f6-0925-4638-ba69-c3c80f270bbb/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 [2018-12-09 08:14:15,277 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 08:14:15,277 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 08:14:15,279 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 08:14:15,279 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_680a75f6-0925-4638-ba69-c3c80f270bbb/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 [2018-12-09 08:14:15,294 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 08:14:15,294 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_680a75f6-0925-4638-ba69-c3c80f270bbb/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 [2018-12-09 08:14:15,311 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 08:14:15,311 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 08:14:15,474 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 08:14:15,475 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 08:14:15,476 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 08:14:15,476 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 08:14:15,476 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 08:14:15,476 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 08:14:15,476 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 08:14:15,476 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 08:14:15,476 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 08:14:15,476 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c_Iteration4_Lasso [2018-12-09 08:14:15,476 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 08:14:15,476 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 08:14:15,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:15,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:15,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:15,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:15,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:15,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 08:14:15,534 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 08:14:15,534 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 08:14:15,535 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 [2018-12-09 08:14:15,535 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 08:14:15,535 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 08:14:15,535 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 08:14:15,535 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 08:14:15,535 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 08:14:15,536 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 08:14:15,536 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 08:14:15,536 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 08:14:15,536 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 [2018-12-09 08:14:15,537 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 08:14:15,537 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 08:14:15,537 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 08:14:15,537 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 08:14:15,537 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 08:14:15,537 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 08:14:15,537 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 08:14:15,537 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 08:14:15,538 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 [2018-12-09 08:14:15,538 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 08:14:15,538 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 08:14:15,538 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 08:14:15,538 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 08:14:15,538 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 08:14:15,538 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 08:14:15,538 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 08:14:15,539 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 08:14:15,539 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 [2018-12-09 08:14:15,539 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 08:14:15,539 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 08:14:15,539 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 08:14:15,539 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 08:14:15,540 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 08:14:15,540 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 08:14:15,542 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 08:14:15,542 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 [2018-12-09 08:14:15,542 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 08:14:15,542 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 08:14:15,542 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 08:14:15,542 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 08:14:15,543 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 08:14:15,543 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 08:14:15,556 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 08:14:15,564 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-12-09 08:14:15,564 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-12-09 08:14:15,564 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 08:14:15,565 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-09 08:14:15,565 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 08:14:15,566 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~m~0) = 1*ULTIMATE.start_main_~i~0 - 1*ULTIMATE.start_main_~m~0 Supporting invariants [1*ULTIMATE.start_main_~m~0 - 1 >= 0] [2018-12-09 08:14:15,571 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-09 08:14:15,595 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:14:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:14:15,598 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 08:14:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:14:15,604 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 08:14:15,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:14:15,615 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-09 08:14:15,615 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-12-09 08:14:15,633 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 13 states and 16 transitions. Complement of second has 5 states. [2018-12-09 08:14:15,634 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 [2018-12-09 08:14:15,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 08:14:15,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-12-09 08:14:15,634 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-09 08:14:15,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 08:14:15,634 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2018-12-09 08:14:15,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 08:14:15,634 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 4 letters. [2018-12-09 08:14:15,635 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 08:14:15,635 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2018-12-09 08:14:15,635 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-09 08:14:15,635 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2018-12-09 08:14:15,635 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-09 08:14:15,635 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-09 08:14:15,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-09 08:14:15,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 08:14:15,635 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 08:14:15,636 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 08:14:15,636 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 08:14:15,636 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-09 08:14:15,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-09 08:14:15,636 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-09 08:14:15,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-09 08:14:15,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.12 08:14:15 BoogieIcfgContainer [2018-12-09 08:14:15,640 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-09 08:14:15,640 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 08:14:15,640 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 08:14:15,640 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 08:14:15,641 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:14:14" (3/4) ... [2018-12-09 08:14:15,643 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 08:14:15,643 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 08:14:15,643 INFO L168 Benchmark]: Toolchain (without parser) took 1861.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 957.1 MB in the beginning and 826.2 MB in the end (delta: 130.9 MB). Peak memory consumption was 258.3 MB. Max. memory is 11.5 GB. [2018-12-09 08:14:15,644 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 08:14:15,645 INFO L168 Benchmark]: CACSL2BoogieTranslator took 125.55 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 08:14:15,645 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.17 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 08:14:15,645 INFO L168 Benchmark]: Boogie Preprocessor took 10.54 ms. Allocated memory is still 1.0 GB. Free memory was 946.3 MB in the beginning and 941.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 08:14:15,645 INFO L168 Benchmark]: RCFGBuilder took 135.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -166.3 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-09 08:14:15,646 INFO L168 Benchmark]: BuchiAutomizer took 1563.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 826.2 MB in the end (delta: 281.1 MB). Peak memory consumption was 281.1 MB. Max. memory is 11.5 GB. [2018-12-09 08:14:15,646 INFO L168 Benchmark]: Witness Printer took 2.76 ms. Allocated memory is still 1.2 GB. Free memory is still 826.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 08:14:15,648 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 125.55 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 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 21.17 ms. Allocated memory is still 1.0 GB. Free memory is still 946.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.54 ms. Allocated memory is still 1.0 GB. Free memory was 946.3 MB in the beginning and 941.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 135.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -166.3 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1563.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 826.2 MB in the end (delta: 281.1 MB). Peak memory consumption was 281.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.76 ms. Allocated memory is still 1.2 GB. Free memory is still 826.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (1 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function i and consists of 5 locations. One deterministic module has affine ranking function i and consists of 3 locations. One deterministic module has affine ranking function i + -1 * m and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 10 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 32 SDtfs, 29 SDslu, 6 SDs, 0 SdLazy, 47 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax183 hnf98 lsp54 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq147 hnf94 smp100 dnf100 smp100 tf108 neg100 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 7ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...