./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Bangalore_true-no-overflow_true-termination_true-valid-memsafety.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_9bb08cb5-e9c4-4a28-a1bb-6d99503270d1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9bb08cb5-e9c4-4a28-a1bb-6d99503270d1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9bb08cb5-e9c4-4a28-a1bb-6d99503270d1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9bb08cb5-e9c4-4a28-a1bb-6d99503270d1/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Bangalore_true-no-overflow_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9bb08cb5-e9c4-4a28-a1bb-6d99503270d1/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9bb08cb5-e9c4-4a28-a1bb-6d99503270d1/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 9c51224894dcd32e556532086a33c2900554a2d1 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 16:29:19,073 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 16:29:19,074 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 16:29:19,080 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 16:29:19,080 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 16:29:19,081 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 16:29:19,082 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 16:29:19,082 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 16:29:19,083 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 16:29:19,084 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 16:29:19,084 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 16:29:19,084 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 16:29:19,085 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 16:29:19,085 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 16:29:19,086 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 16:29:19,086 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 16:29:19,086 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 16:29:19,087 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 16:29:19,088 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 16:29:19,089 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 16:29:19,089 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 16:29:19,090 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 16:29:19,091 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 16:29:19,091 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 16:29:19,091 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 16:29:19,092 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 16:29:19,092 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 16:29:19,093 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 16:29:19,093 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 16:29:19,093 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 16:29:19,094 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 16:29:19,094 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 16:29:19,094 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 16:29:19,094 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 16:29:19,095 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 16:29:19,095 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 16:29:19,095 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9bb08cb5-e9c4-4a28-a1bb-6d99503270d1/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-08 16:29:19,103 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 16:29:19,103 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 16:29:19,104 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 16:29:19,104 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 16:29:19,104 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 16:29:19,104 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-08 16:29:19,104 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-08 16:29:19,104 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-08 16:29:19,104 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-08 16:29:19,104 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-08 16:29:19,104 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-08 16:29:19,104 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 16:29:19,104 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 16:29:19,104 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 16:29:19,105 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 16:29:19,105 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-08 16:29:19,105 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-08 16:29:19,105 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-08 16:29:19,105 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 16:29:19,105 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-08 16:29:19,105 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 16:29:19,105 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-08 16:29:19,105 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 16:29:19,105 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 16:29:19,105 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-08 16:29:19,105 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 16:29:19,106 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 16:29:19,106 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-08 16:29:19,106 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-08 16:29:19,106 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_9bb08cb5-e9c4-4a28-a1bb-6d99503270d1/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 -> 9c51224894dcd32e556532086a33c2900554a2d1 [2018-12-08 16:29:19,123 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 16:29:19,130 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 16:29:19,132 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 16:29:19,133 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 16:29:19,133 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 16:29:19,133 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9bb08cb5-e9c4-4a28-a1bb-6d99503270d1/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/Bangalore_true-no-overflow_true-termination_true-valid-memsafety.c [2018-12-08 16:29:19,168 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9bb08cb5-e9c4-4a28-a1bb-6d99503270d1/bin-2019/uautomizer/data/6481c9680/89b0d60f923c476fa040ea9be2137128/FLAG4b3518ea1 [2018-12-08 16:29:19,569 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 16:29:19,570 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9bb08cb5-e9c4-4a28-a1bb-6d99503270d1/sv-benchmarks/c/termination-crafted/Bangalore_true-no-overflow_true-termination_true-valid-memsafety.c [2018-12-08 16:29:19,573 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9bb08cb5-e9c4-4a28-a1bb-6d99503270d1/bin-2019/uautomizer/data/6481c9680/89b0d60f923c476fa040ea9be2137128/FLAG4b3518ea1 [2018-12-08 16:29:19,581 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9bb08cb5-e9c4-4a28-a1bb-6d99503270d1/bin-2019/uautomizer/data/6481c9680/89b0d60f923c476fa040ea9be2137128 [2018-12-08 16:29:19,583 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 16:29:19,584 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 16:29:19,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 16:29:19,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 16:29:19,587 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 16:29:19,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 04:29:19" (1/1) ... [2018-12-08 16:29:19,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16b4367c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:29:19, skipping insertion in model container [2018-12-08 16:29:19,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 04:29:19" (1/1) ... [2018-12-08 16:29:19,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 16:29:19,608 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 16:29:19,694 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 16:29:19,696 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 16:29:19,704 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 16:29:19,711 INFO L195 MainTranslator]: Completed translation [2018-12-08 16:29:19,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:29:19 WrapperNode [2018-12-08 16:29:19,712 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 16:29:19,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 16:29:19,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 16:29:19,712 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 16:29:19,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:29:19" (1/1) ... [2018-12-08 16:29:19,720 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:29:19" (1/1) ... [2018-12-08 16:29:19,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 16:29:19,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 16:29:19,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 16:29:19,734 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 16:29:19,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:29:19" (1/1) ... [2018-12-08 16:29:19,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:29:19" (1/1) ... [2018-12-08 16:29:19,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:29:19" (1/1) ... [2018-12-08 16:29:19,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:29:19" (1/1) ... [2018-12-08 16:29:19,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:29:19" (1/1) ... [2018-12-08 16:29:19,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:29:19" (1/1) ... [2018-12-08 16:29:19,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:29:19" (1/1) ... [2018-12-08 16:29:19,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 16:29:19,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 16:29:19,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 16:29:19,776 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 16:29:19,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:29:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9bb08cb5-e9c4-4a28-a1bb-6d99503270d1/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 [2018-12-08 16:29:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 16:29:19,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 16:29:19,871 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 16:29:19,871 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-08 16:29:19,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:29:19 BoogieIcfgContainer [2018-12-08 16:29:19,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 16:29:19,872 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-08 16:29:19,872 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-08 16:29:19,874 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-08 16:29:19,874 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 16:29:19,875 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.12 04:29:19" (1/3) ... [2018-12-08 16:29:19,875 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3846e315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 04:29:19, skipping insertion in model container [2018-12-08 16:29:19,875 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 16:29:19,875 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:29:19" (2/3) ... [2018-12-08 16:29:19,876 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3846e315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 04:29:19, skipping insertion in model container [2018-12-08 16:29:19,876 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 16:29:19,876 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:29:19" (3/3) ... [2018-12-08 16:29:19,877 INFO L375 chiAutomizerObserver]: Analyzing ICFG Bangalore_true-no-overflow_true-termination_true-valid-memsafety.c [2018-12-08 16:29:19,907 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 16:29:19,907 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-08 16:29:19,907 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-08 16:29:19,907 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-08 16:29:19,907 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 16:29:19,907 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 16:29:19,907 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-08 16:29:19,907 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 16:29:19,907 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-08 16:29:19,915 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-12-08 16:29:19,927 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-08 16:29:19,927 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 16:29:19,927 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 16:29:19,930 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-08 16:29:19,931 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-08 16:29:19,931 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-08 16:29:19,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-12-08 16:29:19,931 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-08 16:29:19,931 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 16:29:19,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 16:29:19,931 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-08 16:29:19,932 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-08 16:29:19,936 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 8#L18true assume main_~y~0 >= 1; 4#L19-2true [2018-12-08 16:29:19,936 INFO L796 eck$LassoCheckResult]: Loop: 4#L19-2true assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 - main_~y~0; 4#L19-2true [2018-12-08 16:29:19,939 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 16:29:19,939 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2018-12-08 16:29:19,940 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 16:29:19,941 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 16:29:19,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:29:19,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 16:29:19,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:29:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 16:29:19,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 16:29:19,995 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 16:29:19,995 INFO L82 PathProgramCache]: Analyzing trace with hash 44, now seen corresponding path program 1 times [2018-12-08 16:29:19,995 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 16:29:19,995 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 16:29:19,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:29:19,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 16:29:19,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:29:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 16:29:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 16:29:20,001 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 16:29:20,001 INFO L82 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2018-12-08 16:29:20,001 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 16:29:20,002 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 16:29:20,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:29:20,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 16:29:20,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:29:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 16:29:20,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 16:29:20,047 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 16:29:20,048 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 16:29:20,048 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 16:29:20,048 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 16:29:20,048 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 16:29:20,048 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 16:29:20,048 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 16:29:20,049 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 16:29:20,049 INFO L131 ssoRankerPreferences]: Filename of dumped script: Bangalore_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration1_Lasso [2018-12-08 16:29:20,049 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 16:29:20,049 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 16:29:20,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 16:29:20,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 16:29:20,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 16:29:20,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 16:29:20,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 16:29:20,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 16:29:20,132 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 16:29:20,133 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9bb08cb5-e9c4-4a28-a1bb-6d99503270d1/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 [2018-12-08 16:29:20,136 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 16:29:20,136 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 16:29:20,141 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 16:29:20,141 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_9bb08cb5-e9c4-4a28-a1bb-6d99503270d1/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 [2018-12-08 16:29:20,162 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 16:29:20,162 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 16:29:20,178 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 16:29:20,178 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_9bb08cb5-e9c4-4a28-a1bb-6d99503270d1/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 [2018-12-08 16:29:20,181 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 16:29:20,181 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 16:29:20,184 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 16:29:20,184 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9bb08cb5-e9c4-4a28-a1bb-6d99503270d1/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 [2018-12-08 16:29:20,199 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 16:29:20,199 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 16:29:20,201 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 16:29:20,201 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9bb08cb5-e9c4-4a28-a1bb-6d99503270d1/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 [2018-12-08 16:29:20,216 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 16:29:20,216 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9bb08cb5-e9c4-4a28-a1bb-6d99503270d1/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 [2018-12-08 16:29:20,234 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 16:29:20,234 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 16:29:20,286 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 16:29:20,288 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 16:29:20,288 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 16:29:20,288 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 16:29:20,288 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 16:29:20,288 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 16:29:20,288 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 16:29:20,288 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 16:29:20,288 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 16:29:20,288 INFO L131 ssoRankerPreferences]: Filename of dumped script: Bangalore_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration1_Lasso [2018-12-08 16:29:20,288 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 16:29:20,288 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 16:29:20,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 16:29:20,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 16:29:20,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 16:29:20,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 16:29:20,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 16:29:20,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 16:29:20,349 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 16:29:20,353 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 16:29:20,355 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 [2018-12-08 16:29:20,356 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 16:29:20,356 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 16:29:20,356 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 16:29:20,356 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 16:29:20,360 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 16:29:20,360 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 16:29:20,365 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 16:29:20,365 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 [2018-12-08 16:29:20,366 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 16:29:20,366 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 16:29:20,366 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 16:29:20,367 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 16:29:20,367 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 16:29:20,367 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 16:29:20,367 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 16:29:20,368 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 16:29:20,368 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 16:29:20,369 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 16:29:20,369 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 16:29:20,369 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 16:29:20,369 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 16:29:20,369 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 16:29:20,369 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 16:29:20,369 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 16:29:20,370 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 16:29:20,370 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 16:29:20,370 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 16:29:20,370 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 16:29:20,371 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 16:29:20,371 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 16:29:20,371 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 16:29:20,371 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 16:29:20,371 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 16:29:20,372 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 16:29:20,372 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 [2018-12-08 16:29:20,372 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 16:29:20,372 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 16:29:20,372 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 16:29:20,373 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 16:29:20,374 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 16:29:20,374 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 16:29:20,379 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 16:29:20,379 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 16:29:20,380 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 16:29:20,380 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 16:29:20,380 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 16:29:20,380 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 16:29:20,382 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 16:29:20,382 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 16:29:20,396 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 16:29:20,401 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-08 16:29:20,401 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-08 16:29:20,403 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 16:29:20,404 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-08 16:29:20,404 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 16:29:20,404 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2018-12-08 16:29:20,407 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-08 16:29:20,437 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 16:29:20,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:29:20,444 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 16:29:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:29:20,451 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 16:29:20,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:29:20,460 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-12-08 16:29:20,461 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 2 states. [2018-12-08 16:29:20,495 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 2 states. Result 20 states and 23 transitions. Complement of second has 5 states. [2018-12-08 16:29:20,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-08 16:29:20,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-08 16:29:20,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-12-08 16:29:20,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 2 letters. Loop has 1 letters. [2018-12-08 16:29:20,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 16:29:20,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 1 letters. [2018-12-08 16:29:20,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 16:29:20,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 2 letters. Loop has 2 letters. [2018-12-08 16:29:20,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 16:29:20,501 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2018-12-08 16:29:20,503 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-08 16:29:20,505 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2018-12-08 16:29:20,505 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-08 16:29:20,506 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-08 16:29:20,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-08 16:29:20,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 16:29:20,506 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 16:29:20,506 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 16:29:20,506 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 16:29:20,507 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-08 16:29:20,507 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-08 16:29:20,507 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-08 16:29:20,507 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-08 16:29:20,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.12 04:29:20 BoogieIcfgContainer [2018-12-08 16:29:20,511 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-08 16:29:20,512 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 16:29:20,512 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 16:29:20,512 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 16:29:20,512 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:29:19" (3/4) ... [2018-12-08 16:29:20,515 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 16:29:20,515 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 16:29:20,515 INFO L168 Benchmark]: Toolchain (without parser) took 931.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 957.2 MB in the beginning and 995.3 MB in the end (delta: -38.1 MB). Peak memory consumption was 61.5 MB. Max. memory is 11.5 GB. [2018-12-08 16:29:20,517 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 16:29:20,517 INFO L168 Benchmark]: CACSL2BoogieTranslator took 127.32 ms. Allocated memory is still 1.0 GB. Free memory was 957.2 MB in the beginning and 949.1 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-12-08 16:29:20,517 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.18 ms. Allocated memory is still 1.0 GB. Free memory is still 946.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 16:29:20,518 INFO L168 Benchmark]: Boogie Preprocessor took 41.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 946.5 MB in the beginning and 1.1 GB in the end (delta: -153.9 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-12-08 16:29:20,518 INFO L168 Benchmark]: RCFGBuilder took 96.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. [2018-12-08 16:29:20,519 INFO L168 Benchmark]: BuchiAutomizer took 639.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 995.3 MB in the end (delta: 93.4 MB). Peak memory consumption was 93.4 MB. Max. memory is 11.5 GB. [2018-12-08 16:29:20,519 INFO L168 Benchmark]: Witness Printer took 3.25 ms. Allocated memory is still 1.1 GB. Free memory is still 995.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 16:29:20,521 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 982.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 127.32 ms. Allocated memory is still 1.0 GB. Free memory was 957.2 MB in the beginning and 949.1 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.18 ms. Allocated memory is still 1.0 GB. Free memory is still 946.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 946.5 MB in the beginning and 1.1 GB in the end (delta: -153.9 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 96.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 639.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 995.3 MB in the end (delta: 93.4 MB). Peak memory consumption was 93.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.25 ms. Allocated memory is still 1.1 GB. Free memory is still 995.3 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 9 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax192 hnf92 lsp47 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...