./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive/Addition01-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/Addition01-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/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 32bit --witnessprinter.graph.data.programhash 0c2780d79847d31970febd5cb46fb7efe933c8ec ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:19:05,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:19:05,382 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:19:05,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:19:05,458 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:19:05,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:19:05,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:19:05,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:19:05,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:19:05,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:19:05,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:19:05,470 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:19:05,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:19:05,472 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:19:05,474 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:19:05,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:19:05,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:19:05,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:19:05,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:19:05,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:19:05,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:19:05,487 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:19:05,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:19:05,491 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:19:05,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:19:05,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:19:05,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:19:05,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:19:05,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:19:05,508 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:19:05,508 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:19:05,509 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:19:05,510 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:19:05,511 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:19:05,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:19:05,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:19:05,517 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:19:05,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:19:05,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:19:05,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:19:05,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:19:05,524 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-28 03:19:05,572 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:19:05,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:19:05,574 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:19:05,574 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:19:05,575 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:19:05,575 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:19:05,575 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:19:05,575 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:19:05,576 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:19:05,576 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:19:05,577 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:19:05,577 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:19:05,578 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:19:05,578 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:19:05,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:19:05,578 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:19:05,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:19:05,579 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:19:05,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:19:05,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:19:05,579 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:19:05,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:19:05,580 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:19:05,580 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:19:05,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:19:05,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:19:05,581 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:19:05,581 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:19:05,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:19:05,583 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:19:05,583 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:19:05,583 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:19:05,585 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:19:05,585 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_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c2780d79847d31970febd5cb46fb7efe933c8ec [2020-11-28 03:19:05,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:19:06,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:19:06,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:19:06,016 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:19:06,017 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:19:06,018 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/../../sv-benchmarks/c/recursive/Addition01-2.c [2020-11-28 03:19:06,118 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/data/f1e53b931/998ceeba57a1466cabe2a4463cfd2c1d/FLAGa61621b83 [2020-11-28 03:19:06,764 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:19:06,765 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/sv-benchmarks/c/recursive/Addition01-2.c [2020-11-28 03:19:06,778 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/data/f1e53b931/998ceeba57a1466cabe2a4463cfd2c1d/FLAGa61621b83 [2020-11-28 03:19:07,128 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/data/f1e53b931/998ceeba57a1466cabe2a4463cfd2c1d [2020-11-28 03:19:07,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:19:07,133 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:19:07,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:07,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:19:07,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:19:07,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@663046a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07, skipping insertion in model container [2020-11-28 03:19:07,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:19:07,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:19:07,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:07,364 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:19:07,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:07,412 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:19:07,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07 WrapperNode [2020-11-28 03:19:07,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:07,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:07,417 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:19:07,418 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:19:07,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,438 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,459 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:07,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:19:07,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:19:07,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:19:07,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:19:07,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:19:07,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:19:07,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:19:07,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/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 [2020-11-28 03:19:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:19:07,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:19:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:19:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:19:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-11-28 03:19:07,610 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-11-28 03:19:08,076 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:19:08,077 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 03:19:08,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:08 BoogieIcfgContainer [2020-11-28 03:19:08,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:19:08,081 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:19:08,081 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:19:08,085 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:19:08,086 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:19:08,086 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:19:07" (1/3) ... [2020-11-28 03:19:08,088 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b923ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:19:08, skipping insertion in model container [2020-11-28 03:19:08,088 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:19:08,088 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (2/3) ... [2020-11-28 03:19:08,089 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1b923ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:19:08, skipping insertion in model container [2020-11-28 03:19:08,089 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:19:08,089 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:08" (3/3) ... [2020-11-28 03:19:08,092 INFO L373 chiAutomizerObserver]: Analyzing ICFG Addition01-2.c [2020-11-28 03:19:08,165 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:19:08,165 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:19:08,166 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:19:08,166 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:19:08,166 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:19:08,166 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:19:08,167 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:19:08,167 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:19:08,185 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2020-11-28 03:19:08,219 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-28 03:19:08,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:19:08,221 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:19:08,230 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-28 03:19:08,230 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-28 03:19:08,230 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:19:08,231 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2020-11-28 03:19:08,238 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-28 03:19:08,238 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:19:08,239 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:19:08,240 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-28 03:19:08,240 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-28 03:19:08,249 INFO L794 eck$LassoCheckResult]: Stem: 14#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 11#L-1true havoc main_#res;havoc main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_~m~0, main_~n~0, main_~result~0;main_~m~0 := main_#t~nondet9;havoc main_#t~nondet9; 8#L30true assume !(main_~m~0 < 0 || main_~m~0 > 1073741823);main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 22#L36true assume !(main_~n~0 < 0 || main_~n~0 > 1073741823); 10#L41true call main_#t~ret11 := addition(main_~m~0, main_~n~0);< 12#additionENTRYtrue [2020-11-28 03:19:08,250 INFO L796 eck$LassoCheckResult]: Loop: 12#additionENTRYtrue ~m := #in~m;~n := #in~n; 9#L16true assume !(0 == ~n); 4#L19true assume ~n > 0; 3#L20true call #t~ret7 := addition(1 + ~m, ~n - 1);< 12#additionENTRYtrue [2020-11-28 03:19:08,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:08,258 INFO L82 PathProgramCache]: Analyzing trace with hash 28695877, now seen corresponding path program 1 times [2020-11-28 03:19:08,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:08,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964031587] [2020-11-28 03:19:08,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:08,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:08,418 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:08,461 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:08,494 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:08,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:08,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1758770, now seen corresponding path program 1 times [2020-11-28 03:19:08,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:08,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217226042] [2020-11-28 03:19:08,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:08,516 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:08,534 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:08,538 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:08,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:08,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1297641846, now seen corresponding path program 1 times [2020-11-28 03:19:08,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:08,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434177431] [2020-11-28 03:19:08,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:08,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:08,590 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:08,623 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:08,629 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:08,805 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:19:08,806 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:19:08,806 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:19:08,806 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:19:08,807 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:19:08,807 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:08,807 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:19:08,807 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:19:08,807 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition01-2.c_Iteration1_Loop [2020-11-28 03:19:08,808 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:19:08,808 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:19:08,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:08,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:08,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:08,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:08,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:08,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:08,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:09,096 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:19:09,097 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:09,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:19:09,135 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:19:09,143 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:19:09,143 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_~m=0} Honda state: {addition_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:09,171 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:19:09,171 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:09,207 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:19:09,207 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:19:09,221 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:19:09,222 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#in~m=0} Honda state: {addition_#in~m=0} Generalized eigenvectors: [{addition_#in~m=-1}, {addition_#in~m=-1}, {addition_#in~m=3}] Lambdas: [1, 4, 1] Nus: [0, 1] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:09,252 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:19:09,252 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:19:09,256 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:19:09,256 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret8=0} Honda state: {addition_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/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 [2020-11-28 03:19:09,283 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:19:09,283 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:19:09,291 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:19:09,291 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#res=0} Honda state: {addition_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/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 [2020-11-28 03:19:09,318 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:19:09,318 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:09,346 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:19:09,346 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:19:09,417 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:19:09,419 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:19:09,419 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:19:09,419 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:19:09,419 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:19:09,419 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:19:09,419 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:09,419 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:19:09,419 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:19:09,420 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition01-2.c_Iteration1_Loop [2020-11-28 03:19:09,420 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:19:09,420 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:19:09,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:09,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:09,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:09,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:09,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:09,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:09,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:09,583 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:19:09,590 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:19:09,600 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 [2020-11-28 03:19:09,607 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:09,608 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:09,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:09,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:09,608 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:09,611 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:09,611 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:09,614 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:19:09,658 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 [2020-11-28 03:19:09,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:09,667 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:09,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:09,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:09,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:09,668 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:09,669 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:19:09,678 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:09,727 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 [2020-11-28 03:19:09,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:09,729 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:09,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:09,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:09,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:09,731 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:09,731 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:19:09,738 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:19:09,781 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 [2020-11-28 03:19:09,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:09,783 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:09,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:09,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:09,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:09,795 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:09,795 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:09,803 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:09,834 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 [2020-11-28 03:19:09,836 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:09,837 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:09,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:09,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:09,837 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:09,839 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:09,839 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:19:09,841 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:19:09,896 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 [2020-11-28 03:19:09,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:09,901 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:09,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:09,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:09,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:09,902 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:09,903 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:09,908 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:19:09,953 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 [2020-11-28 03:19:09,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:09,957 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:09,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:09,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:09,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:09,959 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:09,960 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:09,966 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:19:09,971 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-28 03:19:09,971 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_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:19:10,011 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:19:10,011 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:19:10,011 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:19:10,012 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_#in~n) = 1*addition_#in~n Supporting invariants [] Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:10,051 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:19:10,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:10,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:19:10,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:10,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:10,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 03:19:10,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:10,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:10,213 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 [2020-11-28 03:19:10,214 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states. Second operand 4 states. [2020-11-28 03:19:10,354 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states.. Second operand 4 states. Result 55 states and 74 transitions. Complement of second has 12 states. [2020-11-28 03:19:10,357 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 [2020-11-28 03:19:10,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 03:19:10,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2020-11-28 03:19:10,360 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 4 letters. [2020-11-28 03:19:10,362 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:10,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 9 letters. Loop has 4 letters. [2020-11-28 03:19:10,362 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:10,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 8 letters. [2020-11-28 03:19:10,362 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:10,363 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 74 transitions. [2020-11-28 03:19:10,374 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-28 03:19:10,380 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 27 states and 30 transitions. [2020-11-28 03:19:10,381 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-11-28 03:19:10,382 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-11-28 03:19:10,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 30 transitions. [2020-11-28 03:19:10,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:19:10,383 INFO L691 BuchiCegarLoop]: Abstraction has 27 states and 30 transitions. [2020-11-28 03:19:10,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 30 transitions. [2020-11-28 03:19:10,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 18. [2020-11-28 03:19:10,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-28 03:19:10,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2020-11-28 03:19:10,411 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-11-28 03:19:10,411 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-11-28 03:19:10,411 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:19:10,411 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2020-11-28 03:19:10,413 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-28 03:19:10,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:19:10,413 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:19:10,414 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:10,414 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-28 03:19:10,414 INFO L794 eck$LassoCheckResult]: Stem: 150#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 139#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_~m~0, main_~n~0, main_~result~0;main_~m~0 := main_#t~nondet9;havoc main_#t~nondet9; 140#L30 assume !(main_~m~0 < 0 || main_~m~0 > 1073741823);main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 154#L36 assume !(main_~n~0 < 0 || main_~n~0 > 1073741823); 146#L41 call main_#t~ret11 := addition(main_~m~0, main_~n~0);< 147#additionENTRY ~m := #in~m;~n := #in~n; 149#L16 assume !(0 == ~n); 151#L19 assume !(~n > 0); 152#L22 [2020-11-28 03:19:10,414 INFO L796 eck$LassoCheckResult]: Loop: 152#L22 assume ~n < 0; 142#L23 call #t~ret8 := addition(~m - 1, 1 + ~n);< 143#additionENTRY ~m := #in~m;~n := #in~n; 156#L16 assume !(0 == ~n); 155#L19 assume !(~n > 0); 152#L22 [2020-11-28 03:19:10,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:10,415 INFO L82 PathProgramCache]: Analyzing trace with hash 180406748, now seen corresponding path program 1 times [2020-11-28 03:19:10,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:10,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708939876] [2020-11-28 03:19:10,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:10,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:10,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708939876] [2020-11-28 03:19:10,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:10,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:19:10,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138695057] [2020-11-28 03:19:10,565 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 03:19:10,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:10,565 INFO L82 PathProgramCache]: Analyzing trace with hash 67056695, now seen corresponding path program 1 times [2020-11-28 03:19:10,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:10,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250675795] [2020-11-28 03:19:10,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:10,575 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:10,581 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:10,583 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:10,751 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:19:10,752 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:19:10,752 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:19:10,752 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:19:10,752 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:19:10,752 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:10,752 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:19:10,752 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:19:10,752 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition01-2.c_Iteration2_Loop [2020-11-28 03:19:10,752 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:19:10,752 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:19:10,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:10,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:10,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:10,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:10,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:10,888 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:19:10,888 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:10,898 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:19:10,898 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:19:10,945 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:19:10,945 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:11,116 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:19:11,117 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#in~m=-2, addition_~m=-2} Honda state: {addition_#in~m=-2, addition_~m=-2} Generalized eigenvectors: [{addition_#in~m=-2, addition_~m=-2}, {addition_#in~m=1, addition_~m=1}, {addition_#in~m=0, addition_~m=0}] Lambdas: [1, 1, 15] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:19:11,157 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:19:11,157 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:11,161 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:19:11,161 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#res=0} Honda state: {addition_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:19:11,211 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:19:11,212 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:19:11,262 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:19:11,262 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:21,760 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:19:21,763 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:19:21,763 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:19:21,764 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:19:21,764 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:19:21,764 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:19:21,764 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:21,764 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:19:21,764 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:19:21,764 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition01-2.c_Iteration2_Loop [2020-11-28 03:19:21,764 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:19:21,764 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:19:21,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:21,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:21,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:21,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:21,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:19:21,918 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:19:21,918 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:19:21,929 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 [2020-11-28 03:19:21,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:21,931 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:21,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:21,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:21,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:21,932 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:21,933 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:21,935 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:19:21,974 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 [2020-11-28 03:19:21,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:21,977 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:21,977 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:21,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:21,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:21,979 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:21,979 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:21,984 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:19:22,027 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 [2020-11-28 03:19:22,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:22,030 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:22,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:22,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:22,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:22,032 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:22,032 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:22,037 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:19:22,042 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-28 03:19:22,042 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6261f0b-94aa-495b-a9ce-7e02b55fb6a1/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:19:22,047 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:19:22,047 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:19:22,047 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:19:22,047 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_~n) = -1*addition_~n Supporting invariants [] Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:22,083 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:19:22,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:22,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:19:22,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:22,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:22,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 03:19:22,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:22,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:22,260 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2020-11-28 03:19:22,260 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand 5 states. [2020-11-28 03:19:22,305 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand 5 states. Result 32 states and 37 transitions. Complement of second has 13 states. [2020-11-28 03:19:22,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-11-28 03:19:22,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-28 03:19:22,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2020-11-28 03:19:22,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 8 letters. Loop has 5 letters. [2020-11-28 03:19:22,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:22,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 13 letters. Loop has 5 letters. [2020-11-28 03:19:22,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:22,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 8 letters. Loop has 10 letters. [2020-11-28 03:19:22,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:22,309 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2020-11-28 03:19:22,310 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-28 03:19:22,311 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 27 states and 31 transitions. [2020-11-28 03:19:22,311 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-11-28 03:19:22,312 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-11-28 03:19:22,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 31 transitions. [2020-11-28 03:19:22,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:19:22,312 INFO L691 BuchiCegarLoop]: Abstraction has 27 states and 31 transitions. [2020-11-28 03:19:22,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 31 transitions. [2020-11-28 03:19:22,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2020-11-28 03:19:22,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-28 03:19:22,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2020-11-28 03:19:22,322 INFO L714 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2020-11-28 03:19:22,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:19:22,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:19:22,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:19:22,328 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand 6 states. [2020-11-28 03:19:22,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:22,391 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2020-11-28 03:19:22,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:19:22,392 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 13 transitions. [2020-11-28 03:19:22,392 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:19:22,392 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2020-11-28 03:19:22,392 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:19:22,393 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:19:22,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:19:22,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:19:22,393 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:19:22,393 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:19:22,393 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:19:22,393 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 03:19:22,393 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:19:22,393 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:19:22,393 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:19:22,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:19:22 BoogieIcfgContainer [2020-11-28 03:19:22,399 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:19:22,399 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:19:22,399 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:19:22,399 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:19:22,400 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:08" (3/4) ... [2020-11-28 03:19:22,403 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:19:22,404 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:19:22,405 INFO L168 Benchmark]: Toolchain (without parser) took 15271.71 ms. Allocated memory was 90.2 MB in the beginning and 115.3 MB in the end (delta: 25.2 MB). Free memory was 59.6 MB in the beginning and 70.3 MB in the end (delta: -10.7 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:22,406 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 90.2 MB. Free memory was 47.9 MB in the beginning and 47.8 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:22,407 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.58 ms. Allocated memory is still 90.2 MB. Free memory was 59.5 MB in the beginning and 68.3 MB in the end (delta: -8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:22,407 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.49 ms. Allocated memory is still 90.2 MB. Free memory was 68.3 MB in the beginning and 66.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:22,408 INFO L168 Benchmark]: Boogie Preprocessor took 49.58 ms. Allocated memory is still 90.2 MB. Free memory was 66.9 MB in the beginning and 65.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:22,409 INFO L168 Benchmark]: RCFGBuilder took 567.84 ms. Allocated memory is still 90.2 MB. Free memory was 65.8 MB in the beginning and 53.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:22,409 INFO L168 Benchmark]: BuchiAutomizer took 14317.98 ms. Allocated memory was 90.2 MB in the beginning and 115.3 MB in the end (delta: 25.2 MB). Free memory was 53.2 MB in the beginning and 70.3 MB in the end (delta: -17.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:22,410 INFO L168 Benchmark]: Witness Printer took 4.53 ms. Allocated memory is still 115.3 MB. Free memory is still 70.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:22,413 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 90.2 MB. Free memory was 47.9 MB in the beginning and 47.8 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 281.58 ms. Allocated memory is still 90.2 MB. Free memory was 59.5 MB in the beginning and 68.3 MB in the end (delta: -8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.49 ms. Allocated memory is still 90.2 MB. Free memory was 68.3 MB in the beginning and 66.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.58 ms. Allocated memory is still 90.2 MB. Free memory was 66.9 MB in the beginning and 65.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 567.84 ms. Allocated memory is still 90.2 MB. Free memory was 65.8 MB in the beginning and 53.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 14317.98 ms. Allocated memory was 90.2 MB in the beginning and 115.3 MB in the end (delta: 25.2 MB). Free memory was 53.2 MB in the beginning and 70.3 MB in the end (delta: -17.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.53 ms. Allocated memory is still 115.3 MB. Free memory is still 70.3 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 4 locations. One deterministic module has affine ranking function -1 * n and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 14.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 13.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 30 SDtfs, 41 SDslu, 13 SDs, 0 SdLazy, 65 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf100 lsp69 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq166 hnf93 smp87 dnf100 smp100 tf110 neg97 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 11.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...