./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-numeric/LeUserDefRec.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4ed5e60b-d20f-4880-8f97-642200579d04/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4ed5e60b-d20f-4880-8f97-642200579d04/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4ed5e60b-d20f-4880-8f97-642200579d04/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4ed5e60b-d20f-4880-8f97-642200579d04/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/LeUserDefRec.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4ed5e60b-d20f-4880-8f97-642200579d04/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4ed5e60b-d20f-4880-8f97-642200579d04/bin/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 87d0ba70ff123101875b88252c232be93381362a ................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:12:10,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:12:10,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:12:11,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:12:11,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:12:11,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:12:11,016 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:12:11,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:12:11,022 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:12:11,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:12:11,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:12:11,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:12:11,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:12:11,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:12:11,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:12:11,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:12:11,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:12:11,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:12:11,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:12:11,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:12:11,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:12:11,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:12:11,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:12:11,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:12:11,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:12:11,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:12:11,054 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:12:11,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:12:11,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:12:11,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:12:11,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:12:11,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:12:11,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:12:11,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:12:11,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:12:11,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:12:11,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:12:11,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:12:11,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:12:11,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:12:11,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:12:11,069 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4ed5e60b-d20f-4880-8f97-642200579d04/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 23:12:11,098 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:12:11,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:12:11,100 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:12:11,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:12:11,101 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:12:11,102 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 23:12:11,102 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 23:12:11,103 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 23:12:11,103 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 23:12:11,104 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 23:12:11,104 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 23:12:11,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:12:11,105 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:12:11,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:12:11,105 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:12:11,106 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 23:12:11,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 23:12:11,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 23:12:11,106 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:12:11,107 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 23:12:11,107 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:12:11,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 23:12:11,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:12:11,108 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:12:11,108 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 23:12:11,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:12:11,109 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:12:11,109 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:12:11,110 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 23:12:11,111 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 23:12:11,111 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_4ed5e60b-d20f-4880-8f97-642200579d04/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4ed5e60b-d20f-4880-8f97-642200579d04/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87d0ba70ff123101875b88252c232be93381362a [2020-11-29 23:12:11,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:12:11,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:12:11,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:12:11,450 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:12:11,451 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:12:11,452 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4ed5e60b-d20f-4880-8f97-642200579d04/bin/uautomizer/../../sv-benchmarks/c/termination-numeric/LeUserDefRec.c [2020-11-29 23:12:11,530 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4ed5e60b-d20f-4880-8f97-642200579d04/bin/uautomizer/data/6a0cbf5a9/86822cc144ec410cbbccf9848cf18286/FLAGbe2417e8c [2020-11-29 23:12:12,061 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:12:12,061 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4ed5e60b-d20f-4880-8f97-642200579d04/sv-benchmarks/c/termination-numeric/LeUserDefRec.c [2020-11-29 23:12:12,068 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4ed5e60b-d20f-4880-8f97-642200579d04/bin/uautomizer/data/6a0cbf5a9/86822cc144ec410cbbccf9848cf18286/FLAGbe2417e8c [2020-11-29 23:12:12,454 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4ed5e60b-d20f-4880-8f97-642200579d04/bin/uautomizer/data/6a0cbf5a9/86822cc144ec410cbbccf9848cf18286 [2020-11-29 23:12:12,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:12:12,458 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:12:12,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:12:12,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:12:12,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:12:12,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:12:12" (1/1) ... [2020-11-29 23:12:12,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52437af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:12, skipping insertion in model container [2020-11-29 23:12:12,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:12:12" (1/1) ... [2020-11-29 23:12:12,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:12:12,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:12:12,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:12:12,683 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:12:12,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:12:12,709 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:12:12,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:12 WrapperNode [2020-11-29 23:12:12,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:12:12,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:12:12,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:12:12,711 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:12:12,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:12" (1/1) ... [2020-11-29 23:12:12,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:12" (1/1) ... [2020-11-29 23:12:12,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:12:12,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:12:12,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:12:12,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:12:12,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:12" (1/1) ... [2020-11-29 23:12:12,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:12" (1/1) ... [2020-11-29 23:12:12,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:12" (1/1) ... [2020-11-29 23:12:12,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:12" (1/1) ... [2020-11-29 23:12:12,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:12" (1/1) ... [2020-11-29 23:12:12,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:12" (1/1) ... [2020-11-29 23:12:12,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:12" (1/1) ... [2020-11-29 23:12:12,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:12:12,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:12:12,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:12:12,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:12:12,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ed5e60b-d20f-4880-8f97-642200579d04/bin/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 [2020-11-29 23:12:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure le [2020-11-29 23:12:12,845 INFO L138 BoogieDeclarations]: Found implementation of procedure le [2020-11-29 23:12:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:12:12,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:12:12,992 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:12:12,992 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-29 23:12:12,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:12:12 BoogieIcfgContainer [2020-11-29 23:12:12,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:12:12,995 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 23:12:12,995 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 23:12:12,998 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 23:12:12,999 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:12:12,999 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 11:12:12" (1/3) ... [2020-11-29 23:12:13,001 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4502e8f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:12:13, skipping insertion in model container [2020-11-29 23:12:13,001 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:12:13,001 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:12:12" (2/3) ... [2020-11-29 23:12:13,002 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4502e8f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:12:13, skipping insertion in model container [2020-11-29 23:12:13,002 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:12:13,002 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:12:12" (3/3) ... [2020-11-29 23:12:13,003 INFO L373 chiAutomizerObserver]: Analyzing ICFG LeUserDefRec.c [2020-11-29 23:12:13,052 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 23:12:13,052 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 23:12:13,053 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 23:12:13,053 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:12:13,053 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:12:13,053 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 23:12:13,053 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:12:13,053 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 23:12:13,067 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2020-11-29 23:12:13,094 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 23:12:13,094 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:12:13,094 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:12:13,101 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 23:12:13,101 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 23:12:13,102 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 23:12:13,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2020-11-29 23:12:13,104 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 23:12:13,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:12:13,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:12:13,105 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 23:12:13,105 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 23:12:13,111 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~ret3, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 13#L23true assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 3#L26true assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 8#L29true call main_#t~ret3 := le(main_~x~0, main_~y~0);< 12#leENTRYtrue [2020-11-29 23:12:13,111 INFO L796 eck$LassoCheckResult]: Loop: 12#leENTRYtrue ~x := #in~x;~y := #in~y; 4#L42true assume ~x > 0 && ~y > 0; 16#L43true call #t~ret5 := le(~x - 1, ~y - 1);< 12#leENTRYtrue [2020-11-29 23:12:13,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:12:13,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1205710, now seen corresponding path program 1 times [2020-11-29 23:12:13,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:12:13,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396435992] [2020-11-29 23:12:13,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:12:13,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:12:13,195 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:12:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:12:13,203 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:12:13,220 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:12:13,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:12:13,222 INFO L82 PathProgramCache]: Analyzing trace with hash 29909, now seen corresponding path program 1 times [2020-11-29 23:12:13,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:12:13,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702336350] [2020-11-29 23:12:13,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:12:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:12:13,235 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:12:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:12:13,242 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:12:13,244 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:12:13,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:12:13,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1559568360, now seen corresponding path program 1 times [2020-11-29 23:12:13,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:12:13,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599959574] [2020-11-29 23:12:13,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:12:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:12:13,265 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:12:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:12:13,277 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:12:13,281 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:12:13,452 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-11-29 23:12:13,585 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:12:13,586 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:12:13,586 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:12:13,586 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:12:13,587 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 23:12:13,587 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:12:13,587 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:12:13,588 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:12:13,588 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeUserDefRec.c_Iteration1_Loop [2020-11-29 23:12:13,588 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:12:13,589 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:12:13,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:12:13,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:12:13,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:12:13,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:12:13,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:12:13,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:12:13,731 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:12:13,732 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ed5e60b-d20f-4880-8f97-642200579d04/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:12:13,743 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:12:13,743 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:12:13,753 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 23:12:13,753 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {le_~y=0} Honda state: {le_~y=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ed5e60b-d20f-4880-8f97-642200579d04/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:12:13,798 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:12:13,799 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ed5e60b-d20f-4880-8f97-642200579d04/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:12:13,843 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 23:12:13,843 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:12:13,883 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 23:12:13,885 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:12:13,886 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:12:13,886 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:12:13,886 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:12:13,886 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 23:12:13,886 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:12:13,886 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:12:13,886 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:12:13,887 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeUserDefRec.c_Iteration1_Loop [2020-11-29 23:12:13,887 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:12:13,887 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:12:13,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:12:13,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:12:13,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:12:13,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:12:13,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:12:13,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:12:13,976 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:12:13,980 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ed5e60b-d20f-4880-8f97-642200579d04/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:12:13,988 INFO L120 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 [2020-11-29 23:12:13,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:12:13,990 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:12:13,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:12:13,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:12:13,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:12:13,995 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:12:13,995 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:12:14,002 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 23:12:14,009 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 23:12:14,009 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4ed5e60b-d20f-4880-8f97-642200579d04/bin/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 [2020-11-29 23:12:14,034 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 23:12:14,035 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 23:12:14,036 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 23:12:14,037 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(le_#in~y) = 1*le_#in~y Supporting invariants [] [2020-11-29 23:12:14,063 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 23:12:14,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:12:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:12:14,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 23:12:14,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:12:14,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:12:14,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 23:12:14,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:12:14,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:12:14,244 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-29 23:12:14,246 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 4 states. [2020-11-29 23:12:14,361 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 4 states. Result 32 states and 37 transitions. Complement of second has 12 states. [2020-11-29 23:12:14,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 23:12:14,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 23:12:14,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2020-11-29 23:12:14,367 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 4 letters. Loop has 3 letters. [2020-11-29 23:12:14,368 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:12:14,368 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 7 letters. Loop has 3 letters. [2020-11-29 23:12:14,369 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:12:14,369 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 4 letters. Loop has 6 letters. [2020-11-29 23:12:14,369 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:12:14,370 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2020-11-29 23:12:14,374 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 23:12:14,376 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2020-11-29 23:12:14,377 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 23:12:14,378 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 23:12:14,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 23:12:14,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:12:14,379 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:12:14,379 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:12:14,379 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:12:14,379 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 23:12:14,379 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 23:12:14,379 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 23:12:14,379 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 23:12:14,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 11:12:14 BoogieIcfgContainer [2020-11-29 23:12:14,385 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 23:12:14,386 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:12:14,386 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:12:14,386 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:12:14,387 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:12:12" (3/4) ... [2020-11-29 23:12:14,391 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 23:12:14,392 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:12:14,394 INFO L168 Benchmark]: Toolchain (without parser) took 1934.39 ms. Allocated memory is still 113.2 MB. Free memory was 83.9 MB in the beginning and 78.2 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-11-29 23:12:14,396 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 81.8 MB. Free memory was 40.1 MB in the beginning and 40.0 MB in the end (delta: 36.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:12:14,398 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.99 ms. Allocated memory is still 113.2 MB. Free memory was 83.7 MB in the beginning and 91.4 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:12:14,399 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.40 ms. Allocated memory is still 113.2 MB. Free memory was 91.4 MB in the beginning and 90.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:12:14,400 INFO L168 Benchmark]: Boogie Preprocessor took 15.73 ms. Allocated memory is still 113.2 MB. Free memory was 90.2 MB in the beginning and 89.3 MB in the end (delta: 893.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:12:14,403 INFO L168 Benchmark]: RCFGBuilder took 236.41 ms. Allocated memory is still 113.2 MB. Free memory was 89.3 MB in the beginning and 80.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:12:14,404 INFO L168 Benchmark]: BuchiAutomizer took 1390.47 ms. Allocated memory is still 113.2 MB. Free memory was 80.2 MB in the beginning and 78.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:12:14,406 INFO L168 Benchmark]: Witness Printer took 6.16 ms. Allocated memory is still 113.2 MB. Free memory is still 78.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:12:14,416 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 81.8 MB. Free memory was 40.1 MB in the beginning and 40.0 MB in the end (delta: 36.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 249.99 ms. Allocated memory is still 113.2 MB. Free memory was 83.7 MB in the beginning and 91.4 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.40 ms. Allocated memory is still 113.2 MB. Free memory was 91.4 MB in the beginning and 90.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 15.73 ms. Allocated memory is still 113.2 MB. Free memory was 90.2 MB in the beginning and 89.3 MB in the end (delta: 893.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 236.41 ms. Allocated memory is still 113.2 MB. Free memory was 89.3 MB in the beginning and 80.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1390.47 ms. Allocated memory is still 113.2 MB. Free memory was 80.2 MB in the beginning and 78.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * Witness Printer took 6.16 ms. Allocated memory is still 113.2 MB. Free memory is still 78.2 MB. There was no memory consumed. Max. memory is 16.1 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 \old(y) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 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: 10 SDtfs, 13 SDslu, 2 SDs, 0 SdLazy, 18 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 54ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 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...