./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/NetBSD_loop.i --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_f36ad202-15bc-4401-86cf-3e2cd2882729/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f36ad202-15bc-4401-86cf-3e2cd2882729/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f36ad202-15bc-4401-86cf-3e2cd2882729/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f36ad202-15bc-4401-86cf-3e2cd2882729/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/NetBSD_loop.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f36ad202-15bc-4401-86cf-3e2cd2882729/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f36ad202-15bc-4401-86cf-3e2cd2882729/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 ff8bf597c44bf4fad2da445c30313c8319221d6a .............................................................................................................................................................................................................................................................................................................................................................................................. 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 22:19:30,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:19:30,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:19:30,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:19:30,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:19:30,217 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:19:30,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:19:30,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:19:30,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:19:30,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:19:30,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:19:30,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:19:30,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:19:30,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:19:30,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:19:30,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:19:30,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:19:30,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:19:30,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:19:30,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:19:30,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:19:30,265 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:19:30,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:19:30,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:19:30,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:19:30,277 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:19:30,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:19:30,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:19:30,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:19:30,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:19:30,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:19:30,289 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:19:30,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:19:30,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:19:30,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:19:30,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:19:30,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:19:30,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:19:30,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:19:30,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:19:30,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:19:30,298 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f36ad202-15bc-4401-86cf-3e2cd2882729/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 22:19:30,324 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:19:30,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:19:30,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:19:30,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:19:30,326 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:19:30,326 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 22:19:30,326 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 22:19:30,326 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 22:19:30,327 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 22:19:30,327 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 22:19:30,327 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 22:19:30,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:19:30,328 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:19:30,328 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:19:30,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:19:30,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:19:30,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:19:30,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 22:19:30,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 22:19:30,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 22:19:30,330 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:19:30,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:19:30,330 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 22:19:30,330 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:19:30,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 22:19:30,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:19:30,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:19:30,331 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 22:19:30,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:19:30,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:19:30,332 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:19:30,332 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 22:19:30,333 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 22:19:30,333 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_f36ad202-15bc-4401-86cf-3e2cd2882729/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f36ad202-15bc-4401-86cf-3e2cd2882729/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff8bf597c44bf4fad2da445c30313c8319221d6a [2020-11-29 22:19:30,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:19:30,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:19:30,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:19:30,607 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:19:30,613 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:19:30,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f36ad202-15bc-4401-86cf-3e2cd2882729/bin/uautomizer/../../sv-benchmarks/c/loop-invgen/NetBSD_loop.i [2020-11-29 22:19:30,705 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f36ad202-15bc-4401-86cf-3e2cd2882729/bin/uautomizer/data/6e9f68e42/756fb73cba51480b97873cef293b6d5b/FLAGc8c62c81e [2020-11-29 22:19:31,120 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:19:31,120 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f36ad202-15bc-4401-86cf-3e2cd2882729/sv-benchmarks/c/loop-invgen/NetBSD_loop.i [2020-11-29 22:19:31,140 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f36ad202-15bc-4401-86cf-3e2cd2882729/bin/uautomizer/data/6e9f68e42/756fb73cba51480b97873cef293b6d5b/FLAGc8c62c81e [2020-11-29 22:19:31,538 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f36ad202-15bc-4401-86cf-3e2cd2882729/bin/uautomizer/data/6e9f68e42/756fb73cba51480b97873cef293b6d5b [2020-11-29 22:19:31,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:19:31,544 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:19:31,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:19:31,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:19:31,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:19:31,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:19:31" (1/1) ... [2020-11-29 22:19:31,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b6485a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:19:31, skipping insertion in model container [2020-11-29 22:19:31,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:19:31" (1/1) ... [2020-11-29 22:19:31,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:19:31,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:19:31,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:19:31,841 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:19:31,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:19:31,888 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:19:31,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:19:31 WrapperNode [2020-11-29 22:19:31,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:19:31,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:19:31,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:19:31,893 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:19:31,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:19:31" (1/1) ... [2020-11-29 22:19:31,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:19:31" (1/1) ... [2020-11-29 22:19:31,943 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:19:31,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:19:31,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:19:31,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:19:31,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:19:31" (1/1) ... [2020-11-29 22:19:31,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:19:31" (1/1) ... [2020-11-29 22:19:31,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:19:31" (1/1) ... [2020-11-29 22:19:31,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:19:31" (1/1) ... [2020-11-29 22:19:31,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:19:31" (1/1) ... [2020-11-29 22:19:31,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:19:31" (1/1) ... [2020-11-29 22:19:31,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:19:31" (1/1) ... [2020-11-29 22:19:31,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:19:31,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:19:31,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:19:31,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:19:32,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:19:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36ad202-15bc-4401-86cf-3e2cd2882729/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 22:19:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:19:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:19:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:19:32,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:19:32,334 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:19:32,334 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-11-29 22:19:32,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:19:32 BoogieIcfgContainer [2020-11-29 22:19:32,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:19:32,336 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 22:19:32,337 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 22:19:32,354 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 22:19:32,355 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:19:32,355 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 10:19:31" (1/3) ... [2020-11-29 22:19:32,372 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@389e35aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:19:32, skipping insertion in model container [2020-11-29 22:19:32,372 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:19:32,372 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:19:31" (2/3) ... [2020-11-29 22:19:32,373 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@389e35aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:19:32, skipping insertion in model container [2020-11-29 22:19:32,373 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:19:32,373 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:19:32" (3/3) ... [2020-11-29 22:19:32,374 INFO L373 chiAutomizerObserver]: Analyzing ICFG NetBSD_loop.i [2020-11-29 22:19:32,439 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 22:19:32,440 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 22:19:32,440 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 22:19:32,440 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:19:32,440 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:19:32,440 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 22:19:32,440 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:19:32,441 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 22:19:32,457 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states. [2020-11-29 22:19:32,490 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2020-11-29 22:19:32,491 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:19:32,491 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:19:32,496 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 22:19:32,496 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-29 22:19:32,496 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 22:19:32,497 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states. [2020-11-29 22:19:32,499 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2020-11-29 22:19:32,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:19:32,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:19:32,499 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 22:19:32,499 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-29 22:19:32,505 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 10#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_~MAXPATHLEN~0, main_~pathbuf_off~0, main_~bound_off~0, main_~glob2_p_off~0, main_~glob2_pathbuf_off~0, main_~glob2_pathlim_off~0;havoc main_~MAXPATHLEN~0;havoc main_~pathbuf_off~0;havoc main_~bound_off~0;havoc main_~glob2_p_off~0;havoc main_~glob2_pathbuf_off~0;havoc main_~glob2_pathlim_off~0;main_~MAXPATHLEN~0 := main_#t~nondet3;havoc main_#t~nondet3; 15#L33true assume main_~MAXPATHLEN~0 > 0 && main_~MAXPATHLEN~0 < 2147483647; 13#L33-1true main_~pathbuf_off~0 := 0;main_~bound_off~0 := main_~pathbuf_off~0 + (1 + main_~MAXPATHLEN~0) - 1;main_~glob2_pathbuf_off~0 := main_~pathbuf_off~0;main_~glob2_pathlim_off~0 := main_~bound_off~0;main_~glob2_p_off~0 := main_~glob2_pathbuf_off~0; 21#L38-2true [2020-11-29 22:19:32,505 INFO L796 eck$LassoCheckResult]: Loop: 21#L38-2true assume !!(main_~glob2_p_off~0 <= main_~glob2_pathlim_off~0);__VERIFIER_assert_#in~cond := (if 0 <= main_~glob2_p_off~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 6#L18true assume !(0 == __VERIFIER_assert_~cond); 4#L18-2true __VERIFIER_assert_#in~cond := (if main_~glob2_p_off~0 < 1 + main_~MAXPATHLEN~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 3#L18-3true assume !(0 == __VERIFIER_assert_~cond); 19#L18-5true main_#t~post4 := main_~glob2_p_off~0;main_~glob2_p_off~0 := 1 + main_#t~post4;havoc main_#t~post4; 21#L38-2true [2020-11-29 22:19:32,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:19:32,511 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2020-11-29 22:19:32,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:19:32,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282755747] [2020-11-29 22:19:32,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:19:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:19:32,607 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:19:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:19:32,624 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:19:32,643 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:19:32,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:19:32,645 INFO L82 PathProgramCache]: Analyzing trace with hash 45286743, now seen corresponding path program 1 times [2020-11-29 22:19:32,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:19:32,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082633534] [2020-11-29 22:19:32,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:19:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:19:32,663 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:19:32,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:19:32,672 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:19:32,675 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:19:32,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:19:32,677 INFO L82 PathProgramCache]: Analyzing trace with hash -588989071, now seen corresponding path program 1 times [2020-11-29 22:19:32,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:19:32,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374784982] [2020-11-29 22:19:32,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:19:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:19:32,753 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:19:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:19:32,786 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:19:32,792 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:19:32,925 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-29 22:19:32,926 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:19:32,999 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:19:32,999 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:19:33,000 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:19:33,000 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:19:33,000 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 22:19:33,001 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:19:33,001 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:19:33,001 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:19:33,001 INFO L133 ssoRankerPreferences]: Filename of dumped script: NetBSD_loop.i_Iteration1_Loop [2020-11-29 22:19:33,002 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:19:33,002 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:19:33,020 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 22:19:33,042 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 22:19:33,050 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 22:19:33,159 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:19:33,160 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36ad202-15bc-4401-86cf-3e2cd2882729/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 22:19:33,168 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 22:19:33,168 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36ad202-15bc-4401-86cf-3e2cd2882729/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 22:19:33,217 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 22:19:33,217 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 [2020-11-29 22:19:33,302 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 22:19:33,305 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:19:33,305 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:19:33,305 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:19:33,305 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:19:33,305 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 22:19:33,306 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:19:33,306 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:19:33,306 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:19:33,306 INFO L133 ssoRankerPreferences]: Filename of dumped script: NetBSD_loop.i_Iteration1_Loop [2020-11-29 22:19:33,306 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:19:33,306 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:19:33,308 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 22:19:33,319 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 22:19:33,333 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 22:19:33,411 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:19:33,416 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36ad202-15bc-4401-86cf-3e2cd2882729/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 22:19:33,428 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 22:19:33,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:19:33,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:19:33,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:19:33,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:19:33,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:19:33,438 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:19:33,439 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:19:33,444 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36ad202-15bc-4401-86cf-3e2cd2882729/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 22:19:33,486 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 22:19:33,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:19:33,488 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:19:33,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:19:33,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:19:33,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:19:33,494 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:19:33,494 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:19:33,498 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 22:19:33,506 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 22:19:33,506 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36ad202-15bc-4401-86cf-3e2cd2882729/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) [2020-11-29 22:19:33,515 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 22:19:33,515 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 22:19:33,515 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 22:19:33,516 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~MAXPATHLEN~0, ULTIMATE.start_main_~glob2_p_off~0) = 2*ULTIMATE.start_main_~MAXPATHLEN~0 - 2*ULTIMATE.start_main_~glob2_p_off~0 + 1 Supporting invariants [] Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:19:33,556 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 22:19:33,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:19:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:19:33,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:19:33,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:19:33,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:19:33,647 WARN L261 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 22:19:33,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:19:33,701 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-29 22:19:33,702 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:19:33,724 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 22:19:33,742 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 22:19:33,743 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states. Second operand 5 states. [2020-11-29 22:19:33,856 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states.. Second operand 5 states. Result 49 states and 63 transitions. Complement of second has 9 states. [2020-11-29 22:19:33,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-11-29 22:19:33,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 22:19:33,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 46 transitions. [2020-11-29 22:19:33,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 46 transitions. Stem has 4 letters. Loop has 5 letters. [2020-11-29 22:19:33,861 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:19:33,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 46 transitions. Stem has 9 letters. Loop has 5 letters. [2020-11-29 22:19:33,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:19:33,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 46 transitions. Stem has 4 letters. Loop has 10 letters. [2020-11-29 22:19:33,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:19:33,863 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 63 transitions. [2020-11-29 22:19:33,868 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 22:19:33,870 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 0 states and 0 transitions. [2020-11-29 22:19:33,871 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 22:19:33,871 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 22:19:33,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 22:19:33,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:19:33,872 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:19:33,872 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:19:33,872 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:19:33,873 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 22:19:33,873 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 22:19:33,873 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 22:19:33,873 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 22:19:33,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 10:19:33 BoogieIcfgContainer [2020-11-29 22:19:33,879 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 22:19:33,879 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:19:33,879 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:19:33,880 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:19:33,880 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:19:32" (3/4) ... [2020-11-29 22:19:33,884 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 22:19:33,884 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:19:33,887 INFO L168 Benchmark]: Toolchain (without parser) took 2341.20 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 52.2 MB in the beginning and 54.3 MB in the end (delta: -2.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2020-11-29 22:19:33,889 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 83.9 MB. Free memory was 43.5 MB in the beginning and 43.4 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:19:33,890 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.93 ms. Allocated memory is still 83.9 MB. Free memory was 52.0 MB in the beginning and 61.5 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:19:33,891 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.62 ms. Allocated memory is still 83.9 MB. Free memory was 61.5 MB in the beginning and 59.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:19:33,892 INFO L168 Benchmark]: Boogie Preprocessor took 44.50 ms. Allocated memory is still 83.9 MB. Free memory was 59.9 MB in the beginning and 59.2 MB in the end (delta: 707.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:19:33,894 INFO L168 Benchmark]: RCFGBuilder took 345.96 ms. Allocated memory is still 83.9 MB. Free memory was 58.9 MB in the beginning and 47.7 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 22:19:33,896 INFO L168 Benchmark]: BuchiAutomizer took 1542.24 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 47.3 MB in the beginning and 54.3 MB in the end (delta: -7.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2020-11-29 22:19:33,897 INFO L168 Benchmark]: Witness Printer took 4.89 ms. Allocated memory is still 104.9 MB. Free memory is still 54.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:19:33,906 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 83.9 MB. Free memory was 43.5 MB in the beginning and 43.4 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 345.93 ms. Allocated memory is still 83.9 MB. Free memory was 52.0 MB in the beginning and 61.5 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.62 ms. Allocated memory is still 83.9 MB. Free memory was 61.5 MB in the beginning and 59.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.50 ms. Allocated memory is still 83.9 MB. Free memory was 59.9 MB in the beginning and 59.2 MB in the end (delta: 707.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 345.96 ms. Allocated memory is still 83.9 MB. Free memory was 58.9 MB in the beginning and 47.7 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1542.24 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 47.3 MB in the beginning and 54.3 MB in the end (delta: -7.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.89 ms. Allocated memory is still 104.9 MB. Free memory is still 54.3 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * MAXPATHLEN + -2 * glob2_p_off + 1 and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 15 SDtfs, 22 SDslu, 18 SDs, 0 SdLazy, 19 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax100 hnf100 lsp75 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq133 hnf95 smp100 dnf100 smp100 tf108 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...