./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_41ceb432-67e9-4109-9c99-7a29852c81ab/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/Addition01-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/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 [2020-11-29 20:56:50,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:56:50,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:56:50,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:56:50,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:56:50,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:56:50,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:56:50,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:56:50,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:56:50,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:56:50,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:56:50,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:56:50,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:56:50,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:56:50,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:56:50,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:56:50,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:56:50,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:56:50,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:56:50,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:56:50,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:56:50,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:56:50,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:56:50,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:56:50,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:56:50,463 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:56:50,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:56:50,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:56:50,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:56:50,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:56:50,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:56:50,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:56:50,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:56:50,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:56:50,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:56:50,475 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:56:50,476 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:56:50,476 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:56:50,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:56:50,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:56:50,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:56:50,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 20:56:50,540 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:56:50,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:56:50,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:56:50,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:56:50,543 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:56:50,544 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 20:56:50,544 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 20:56:50,544 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 20:56:50,544 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 20:56:50,544 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 20:56:50,546 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 20:56:50,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:56:50,546 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:56:50,547 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:56:50,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:56:50,547 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:56:50,547 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:56:50,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 20:56:50,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 20:56:50,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 20:56:50,548 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:56:50,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:56:50,549 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 20:56:50,549 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:56:50,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 20:56:50,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:56:50,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:56:50,550 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 20:56:50,550 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:56:50,552 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:56:50,552 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:56:50,552 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 20:56:50,554 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 20:56:50,554 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_41ceb432-67e9-4109-9c99-7a29852c81ab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c2780d79847d31970febd5cb46fb7efe933c8ec [2020-11-29 20:56:50,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:56:51,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:56:51,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:56:51,012 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:56:51,013 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:56:51,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/bin/uautomizer/../../sv-benchmarks/c/recursive/Addition01-2.c [2020-11-29 20:56:51,093 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/bin/uautomizer/data/acf15f064/24292d764e7d4f15ba19620a324a7cb6/FLAG1ad9b7e35 [2020-11-29 20:56:51,774 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:56:51,775 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/sv-benchmarks/c/recursive/Addition01-2.c [2020-11-29 20:56:51,788 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/bin/uautomizer/data/acf15f064/24292d764e7d4f15ba19620a324a7cb6/FLAG1ad9b7e35 [2020-11-29 20:56:52,127 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/bin/uautomizer/data/acf15f064/24292d764e7d4f15ba19620a324a7cb6 [2020-11-29 20:56:52,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:56:52,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:56:52,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:56:52,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:56:52,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:56:52,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:56:52" (1/1) ... [2020-11-29 20:56:52,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5010338b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:56:52, skipping insertion in model container [2020-11-29 20:56:52,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:56:52" (1/1) ... [2020-11-29 20:56:52,150 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:56:52,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:56:52,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:56:52,373 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:56:52,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:56:52,410 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:56:52,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:56:52 WrapperNode [2020-11-29 20:56:52,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:56:52,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:56:52,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:56:52,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:56:52,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:56:52" (1/1) ... [2020-11-29 20:56:52,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:56:52" (1/1) ... [2020-11-29 20:56:52,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:56:52,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:56:52,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:56:52,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:56:52,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:56:52" (1/1) ... [2020-11-29 20:56:52,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:56:52" (1/1) ... [2020-11-29 20:56:52,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:56:52" (1/1) ... [2020-11-29 20:56:52,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:56:52" (1/1) ... [2020-11-29 20:56:52,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:56:52" (1/1) ... [2020-11-29 20:56:52,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:56:52" (1/1) ... [2020-11-29 20:56:52,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:56:52" (1/1) ... [2020-11-29 20:56:52,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:56:52,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:56:52,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:56:52,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:56:52,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:56:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/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 20:56:52,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:56:52,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:56:52,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:56:52,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:56:52,576 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-11-29 20:56:52,577 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-11-29 20:56:53,131 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:56:53,132 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-29 20:56:53,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:56:53 BoogieIcfgContainer [2020-11-29 20:56:53,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:56:53,135 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 20:56:53,135 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 20:56:53,139 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 20:56:53,142 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:56:53,142 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 08:56:52" (1/3) ... [2020-11-29 20:56:53,144 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@686bf0bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:56:53, skipping insertion in model container [2020-11-29 20:56:53,145 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:56:53,145 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:56:52" (2/3) ... [2020-11-29 20:56:53,145 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@686bf0bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:56:53, skipping insertion in model container [2020-11-29 20:56:53,146 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:56:53,146 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:56:53" (3/3) ... [2020-11-29 20:56:53,147 INFO L373 chiAutomizerObserver]: Analyzing ICFG Addition01-2.c [2020-11-29 20:56:53,218 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 20:56:53,218 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 20:56:53,218 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 20:56:53,218 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:56:53,218 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:56:53,219 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 20:56:53,219 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:56:53,219 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 20:56:53,238 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2020-11-29 20:56:53,274 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-29 20:56:53,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:56:53,275 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:56:53,283 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-29 20:56:53,283 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 20:56:53,283 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 20:56:53,284 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2020-11-29 20:56:53,291 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-29 20:56:53,291 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:56:53,291 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:56:53,292 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-29 20:56:53,292 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 20:56:53,301 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 [2020-11-29 20:56:53,302 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 [2020-11-29 20:56:53,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:56:53,311 INFO L82 PathProgramCache]: Analyzing trace with hash 28695877, now seen corresponding path program 1 times [2020-11-29 20:56:53,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:56:53,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364370545] [2020-11-29 20:56:53,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:56:53,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:56:53,473 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:56:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:56:53,514 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:56:53,545 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:56:53,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:56:53,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1758770, now seen corresponding path program 1 times [2020-11-29 20:56:53,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:56:53,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112094959] [2020-11-29 20:56:53,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:56:53,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:56:53,573 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:56:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:56:53,587 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:56:53,590 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:56:53,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:56:53,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1297641846, now seen corresponding path program 1 times [2020-11-29 20:56:53,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:56:53,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023339020] [2020-11-29 20:56:53,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:56:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:56:53,645 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:56:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:56:53,683 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:56:53,703 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:56:53,922 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:56:53,923 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:56:53,924 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:56:53,924 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:56:53,930 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 20:56:53,930 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:56:53,931 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:56:53,931 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:56:53,931 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition01-2.c_Iteration1_Loop [2020-11-29 20:56:53,931 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:56:53,932 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:56:53,955 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 20:56:53,967 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 20:56:53,979 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 20:56:53,986 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 20:56:53,991 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 20:56:54,004 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 20:56:54,017 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 20:56:54,119 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:56:54,120 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/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 [2020-11-29 20:56:54,127 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:56:54,127 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 20:56:54,137 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 20:56:54,137 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_41ceb432-67e9-4109-9c99-7a29852c81ab/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 20:56:54,189 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:56:54,189 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_41ceb432-67e9-4109-9c99-7a29852c81ab/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 20:56:54,240 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 20:56:54,240 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 20:56:54,274 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 20:56:54,274 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_41ceb432-67e9-4109-9c99-7a29852c81ab/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 [2020-11-29 20:56:54,307 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:56:54,307 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 20:56:54,313 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 20:56:54,313 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_41ceb432-67e9-4109-9c99-7a29852c81ab/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 20:56:54,344 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:56:54,344 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 20:56:54,348 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 20:56:54,348 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_41ceb432-67e9-4109-9c99-7a29852c81ab/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 [2020-11-29 20:56:54,378 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:56:54,378 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/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 [2020-11-29 20:56:54,408 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 20:56:54,408 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 20:56:54,477 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 20:56:54,480 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:56:54,480 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:56:54,480 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:56:54,480 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:56:54,481 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 20:56:54,481 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:56:54,481 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:56:54,481 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:56:54,481 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition01-2.c_Iteration1_Loop [2020-11-29 20:56:54,481 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:56:54,481 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:56:54,483 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 20:56:54,492 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 20:56:54,502 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 20:56:54,508 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 20:56:54,514 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 20:56:54,517 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 20:56:54,534 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 20:56:54,648 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:56:54,656 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/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) [2020-11-29 20:56:54,664 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 20:56:54,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:56:54,666 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:56:54,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:56:54,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:56:54,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:56:54,670 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:56:54,670 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 [2020-11-29 20:56:54,673 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/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) [2020-11-29 20:56:54,724 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 20:56:54,726 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:56:54,727 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:56:54,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:56:54,727 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:56:54,727 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:56:54,729 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:56:54,729 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:56:54,732 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/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 [2020-11-29 20:56:54,765 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 20:56:54,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:56:54,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:56:54,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:56:54,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:56:54,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:56:54,771 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:56:54,771 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:56:54,775 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/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) [2020-11-29 20:56:54,831 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 Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:56:54,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:56:54,833 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:56:54,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:56:54,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:56:54,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:56:54,834 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:56:54,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:56:54,838 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/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 [2020-11-29 20:56:54,869 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 20:56:54,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:56:54,870 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:56:54,870 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:56:54,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:56:54,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:56:54,871 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:56:54,872 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:56:54,873 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/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) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:56:54,902 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 20:56:54,903 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:56:54,904 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:56:54,904 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:56:54,904 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:56:54,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:56:54,905 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:56:54,905 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:56:54,912 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/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) [2020-11-29 20:56:54,958 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 20:56:54,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:56:54,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:56:54,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:56:54,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:56:54,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:56:54,963 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:56:54,963 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 [2020-11-29 20:56:54,966 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 20:56:54,972 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 20:56:54,972 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_41ceb432-67e9-4109-9c99-7a29852c81ab/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) [2020-11-29 20:56:55,006 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 20:56:55,006 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 20:56:55,007 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 20:56:55,007 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 [2020-11-29 20:56:55,040 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 20:56:55,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:56:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:56:55,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 20:56:55,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:56:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:56:55,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 20:56:55,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:56:55,195 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 20:56:55,214 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 20:56:55,215 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states. Second operand 4 states. [2020-11-29 20:56:55,364 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. [2020-11-29 20:56:55,367 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 20:56:55,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 20:56:55,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2020-11-29 20:56:55,373 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 4 letters. [2020-11-29 20:56:55,375 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:56:55,376 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 9 letters. Loop has 4 letters. [2020-11-29 20:56:55,376 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:56:55,376 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 8 letters. [2020-11-29 20:56:55,376 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:56:55,377 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 74 transitions. [2020-11-29 20:56:55,394 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-29 20:56:55,399 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 27 states and 30 transitions. [2020-11-29 20:56:55,400 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-11-29 20:56:55,400 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-11-29 20:56:55,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 30 transitions. [2020-11-29 20:56:55,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 20:56:55,401 INFO L691 BuchiCegarLoop]: Abstraction has 27 states and 30 transitions. [2020-11-29 20:56:55,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 30 transitions. [2020-11-29 20:56:55,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 18. [2020-11-29 20:56:55,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-29 20:56:55,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2020-11-29 20:56:55,426 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-11-29 20:56:55,426 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-11-29 20:56:55,426 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 20:56:55,426 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2020-11-29 20:56:55,427 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-29 20:56:55,427 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:56:55,427 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:56:55,428 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:56:55,428 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-29 20:56:55,428 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 [2020-11-29 20:56:55,428 INFO L796 eck$LassoCheckResult]: Loop: 152#L22 assume ~n < 0; 142#L23 call #t~ret8 := addition(~m - 1, 1 + ~n);< 143#additionENTRY ~m := #in~m;~n := #in~n; 156#L16 assume !(0 == ~n); 155#L19 assume !(~n > 0); 152#L22 [2020-11-29 20:56:55,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:56:55,429 INFO L82 PathProgramCache]: Analyzing trace with hash 180406748, now seen corresponding path program 1 times [2020-11-29 20:56:55,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:56:55,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821388218] [2020-11-29 20:56:55,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:56:55,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:56:55,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:56:55,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821388218] [2020-11-29 20:56:55,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:56:55,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:56:55,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585117811] [2020-11-29 20:56:55,550 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 20:56:55,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:56:55,551 INFO L82 PathProgramCache]: Analyzing trace with hash 67056695, now seen corresponding path program 1 times [2020-11-29 20:56:55,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:56:55,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716680900] [2020-11-29 20:56:55,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:56:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:56:55,557 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:56:55,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:56:55,566 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:56:55,568 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:56:55,720 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:56:55,720 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:56:55,721 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:56:55,721 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:56:55,721 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 20:56:55,721 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:56:55,721 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:56:55,721 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:56:55,721 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition01-2.c_Iteration2_Loop [2020-11-29 20:56:55,721 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:56:55,721 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:56:55,723 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 20:56:55,735 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 20:56:55,741 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 20:56:55,758 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 20:56:55,763 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 20:56:55,896 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:56:55,896 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/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) [2020-11-29 20:56:55,901 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:56:55,901 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/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) [2020-11-29 20:56:55,990 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 20:56:55,990 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 [2020-11-29 20:56:56,201 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 20:56:56,202 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_41ceb432-67e9-4109-9c99-7a29852c81ab/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) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:56:56,233 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:56:56,233 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 20:56:56,235 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 20:56:56,235 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_41ceb432-67e9-4109-9c99-7a29852c81ab/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) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:56:56,267 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:56:56,267 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/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) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:56:56,298 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 20:56:56,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 20:57:08,309 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 20:57:08,312 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:57:08,313 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:57:08,313 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:57:08,313 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:57:08,313 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 20:57:08,313 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:57:08,313 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:57:08,313 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:57:08,314 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition01-2.c_Iteration2_Loop [2020-11-29 20:57:08,314 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:57:08,314 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:57:08,316 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 20:57:08,341 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 20:57:08,355 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 20:57:08,385 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 20:57:08,389 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 20:57:08,487 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:57:08,487 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/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) [2020-11-29 20:57:08,498 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 20:57:08,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:57:08,501 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:57:08,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:08,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:08,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:57:08,502 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:57:08,502 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 [2020-11-29 20:57:08,506 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/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) [2020-11-29 20:57:08,552 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 20:57:08,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:57:08,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:57:08,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:08,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:08,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:57:08,559 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:57:08,559 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 [2020-11-29 20:57:08,564 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_41ceb432-67e9-4109-9c99-7a29852c81ab/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) [2020-11-29 20:57:08,611 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 20:57:08,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:57:08,613 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:57:08,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:57:08,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:57:08,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:57:08,616 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:57:08,616 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 [2020-11-29 20:57:08,621 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 20:57:08,627 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 20:57:08,627 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_41ceb432-67e9-4109-9c99-7a29852c81ab/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) [2020-11-29 20:57:08,632 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 20:57:08,632 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 20:57:08,632 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 20:57:08,632 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 [2020-11-29 20:57:08,676 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 20:57:08,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:57:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:08,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 20:57:08,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:57:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:57:08,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 20:57:08,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:57:08,870 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 20:57:08,870 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 [2020-11-29 20:57:08,871 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand 5 states. [2020-11-29 20:57:08,913 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. [2020-11-29 20:57:08,916 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 [2020-11-29 20:57:08,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 20:57:08,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2020-11-29 20:57:08,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 8 letters. Loop has 5 letters. [2020-11-29 20:57:08,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:57:08,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 13 letters. Loop has 5 letters. [2020-11-29 20:57:08,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:57:08,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 8 letters. Loop has 10 letters. [2020-11-29 20:57:08,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:57:08,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2020-11-29 20:57:08,921 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-29 20:57:08,922 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 27 states and 31 transitions. [2020-11-29 20:57:08,922 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-11-29 20:57:08,923 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-11-29 20:57:08,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 31 transitions. [2020-11-29 20:57:08,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 20:57:08,923 INFO L691 BuchiCegarLoop]: Abstraction has 27 states and 31 transitions. [2020-11-29 20:57:08,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 31 transitions. [2020-11-29 20:57:08,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2020-11-29 20:57:08,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-29 20:57:08,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2020-11-29 20:57:08,931 INFO L714 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2020-11-29 20:57:08,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:57:08,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:57:08,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:57:08,940 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand 6 states. [2020-11-29 20:57:09,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:57:09,029 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2020-11-29 20:57:09,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:57:09,030 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 13 transitions. [2020-11-29 20:57:09,031 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 20:57:09,031 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2020-11-29 20:57:09,031 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 20:57:09,031 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 20:57:09,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 20:57:09,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:57:09,032 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:57:09,032 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:57:09,032 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:57:09,032 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 20:57:09,032 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:57:09,032 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 20:57:09,032 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 20:57:09,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 08:57:09 BoogieIcfgContainer [2020-11-29 20:57:09,039 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 20:57:09,039 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:57:09,039 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:57:09,040 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:57:09,040 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:56:53" (3/4) ... [2020-11-29 20:57:09,043 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 20:57:09,044 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:57:09,046 INFO L168 Benchmark]: Toolchain (without parser) took 16912.44 ms. Allocated memory was 102.8 MB in the beginning and 136.3 MB in the end (delta: 33.6 MB). Free memory was 74.2 MB in the beginning and 60.2 MB in the end (delta: 14.0 MB). Peak memory consumption was 46.3 MB. Max. memory is 16.1 GB. [2020-11-29 20:57:09,047 INFO L168 Benchmark]: CDTParser took 1.04 ms. Allocated memory is still 102.8 MB. Free memory was 64.1 MB in the beginning and 64.0 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:57:09,047 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.30 ms. Allocated memory is still 102.8 MB. Free memory was 74.2 MB in the beginning and 79.8 MB in the end (delta: -5.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:57:09,048 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.83 ms. Allocated memory is still 102.8 MB. Free memory was 79.8 MB in the beginning and 78.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:57:09,049 INFO L168 Benchmark]: Boogie Preprocessor took 18.52 ms. Allocated memory is still 102.8 MB. Free memory was 78.6 MB in the beginning and 77.7 MB in the end (delta: 887.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:57:09,050 INFO L168 Benchmark]: RCFGBuilder took 662.86 ms. Allocated memory is still 102.8 MB. Free memory was 77.7 MB in the beginning and 65.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:57:09,051 INFO L168 Benchmark]: BuchiAutomizer took 15903.72 ms. Allocated memory was 102.8 MB in the beginning and 136.3 MB in the end (delta: 33.6 MB). Free memory was 65.1 MB in the beginning and 60.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 38.9 MB. Max. memory is 16.1 GB. [2020-11-29 20:57:09,051 INFO L168 Benchmark]: Witness Printer took 4.57 ms. Allocated memory is still 136.3 MB. Free memory is still 60.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:57:09,056 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.04 ms. Allocated memory is still 102.8 MB. Free memory was 64.1 MB in the beginning and 64.0 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 277.30 ms. Allocated memory is still 102.8 MB. Free memory was 74.2 MB in the beginning and 79.8 MB in the end (delta: -5.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.83 ms. Allocated memory is still 102.8 MB. Free memory was 79.8 MB in the beginning and 78.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.52 ms. Allocated memory is still 102.8 MB. Free memory was 78.6 MB in the beginning and 77.7 MB in the end (delta: 887.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 662.86 ms. Allocated memory is still 102.8 MB. Free memory was 77.7 MB in the beginning and 65.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 15903.72 ms. Allocated memory was 102.8 MB in the beginning and 136.3 MB in the end (delta: 33.6 MB). Free memory was 65.1 MB in the beginning and 60.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 38.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.57 ms. Allocated memory is still 136.3 MB. Free memory is still 60.2 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 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 15.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 14.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 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, 0.1s 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: 16ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 12.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...