./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 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loop-invgen/NetBSD_loop.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0.2.1-dev-20ed64e [2021-08-27 15:21:41,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 15:21:41,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 15:21:41,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 15:21:41,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 15:21:41,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 15:21:41,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 15:21:41,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 15:21:41,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 15:21:41,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 15:21:41,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 15:21:41,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 15:21:41,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 15:21:41,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 15:21:41,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 15:21:41,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 15:21:41,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 15:21:41,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 15:21:41,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 15:21:41,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 15:21:41,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 15:21:41,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 15:21:41,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 15:21:41,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 15:21:41,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 15:21:41,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 15:21:41,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 15:21:41,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 15:21:41,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 15:21:41,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 15:21:41,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 15:21:41,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 15:21:41,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 15:21:41,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 15:21:41,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 15:21:41,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 15:21:41,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 15:21:41,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 15:21:41,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 15:21:41,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 15:21:41,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 15:21:41,420 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 15:21:41,448 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 15:21:41,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 15:21:41,449 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 15:21:41,449 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 15:21:41,451 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 15:21:41,451 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 15:21:41,451 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 15:21:41,451 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 15:21:41,451 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 15:21:41,451 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 15:21:41,452 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 15:21:41,452 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 15:21:41,452 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 15:21:41,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 15:21:41,452 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 15:21:41,452 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 15:21:41,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 15:21:41,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 15:21:41,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 15:21:41,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 15:21:41,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 15:21:41,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 15:21:41,453 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 15:21:41,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 15:21:41,453 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 15:21:41,453 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 15:21:41,453 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 15:21:41,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 15:21:41,453 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 15:21:41,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 15:21:41,453 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 15:21:41,453 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 15:21:41,454 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 15:21:41,454 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff8bf597c44bf4fad2da445c30313c8319221d6a [2021-08-27 15:21:41,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 15:21:41,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 15:21:41,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 15:21:41,707 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 15:21:41,707 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 15:21:41,708 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/NetBSD_loop.i [2021-08-27 15:21:41,766 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/429f40d6e/c53c472e94b74b49b09905200e4c7c5e/FLAGa8cc42b7a [2021-08-27 15:21:42,096 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 15:21:42,097 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/NetBSD_loop.i [2021-08-27 15:21:42,102 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/429f40d6e/c53c472e94b74b49b09905200e4c7c5e/FLAGa8cc42b7a [2021-08-27 15:21:42,518 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/429f40d6e/c53c472e94b74b49b09905200e4c7c5e [2021-08-27 15:21:42,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 15:21:42,522 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 15:21:42,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 15:21:42,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 15:21:42,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 15:21:42,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:21:42" (1/1) ... [2021-08-27 15:21:42,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b827dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:21:42, skipping insertion in model container [2021-08-27 15:21:42,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:21:42" (1/1) ... [2021-08-27 15:21:42,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 15:21:42,545 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 15:21:42,627 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/NetBSD_loop.i[893,906] [2021-08-27 15:21:42,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:21:42,638 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 15:21:42,646 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/NetBSD_loop.i[893,906] [2021-08-27 15:21:42,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:21:42,657 INFO L208 MainTranslator]: Completed translation [2021-08-27 15:21:42,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:21:42 WrapperNode [2021-08-27 15:21:42,658 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 15:21:42,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 15:21:42,659 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 15:21:42,659 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 15:21:42,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:21:42" (1/1) ... [2021-08-27 15:21:42,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:21:42" (1/1) ... [2021-08-27 15:21:42,702 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 15:21:42,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 15:21:42,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 15:21:42,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 15:21:42,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:21:42" (1/1) ... [2021-08-27 15:21:42,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:21:42" (1/1) ... [2021-08-27 15:21:42,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:21:42" (1/1) ... [2021-08-27 15:21:42,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:21:42" (1/1) ... [2021-08-27 15:21:42,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:21:42" (1/1) ... [2021-08-27 15:21:42,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:21:42" (1/1) ... [2021-08-27 15:21:42,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:21:42" (1/1) ... [2021-08-27 15:21:42,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 15:21:42,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 15:21:42,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 15:21:42,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 15:21:42,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:21:42" (1/1) ... [2021-08-27 15:21:42,728 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:21:42,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:21:42,751 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:21:42,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 15:21:42,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 15:21:42,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 15:21:42,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 15:21:42,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 15:21:43,003 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 15:21:43,004 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-08-27 15:21:43,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:21:43 BoogieIcfgContainer [2021-08-27 15:21:43,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 15:21:43,005 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 15:21:43,006 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 15:21:43,007 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 15:21:43,008 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:21:43,008 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 03:21:42" (1/3) ... [2021-08-27 15:21:43,008 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39fd1fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:21:43, skipping insertion in model container [2021-08-27 15:21:43,008 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:21:43,009 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:21:42" (2/3) ... [2021-08-27 15:21:43,009 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@39fd1fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:21:43, skipping insertion in model container [2021-08-27 15:21:43,009 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:21:43,009 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:21:43" (3/3) ... [2021-08-27 15:21:43,025 INFO L389 chiAutomizerObserver]: Analyzing ICFG NetBSD_loop.i [2021-08-27 15:21:43,068 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 15:21:43,068 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 15:21:43,068 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 15:21:43,069 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 15:21:43,069 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 15:21:43,069 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 15:21:43,069 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 15:21:43,069 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 15:21:43,092 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:21:43,104 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-08-27 15:21:43,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:21:43,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:21:43,108 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-08-27 15:21:43,108 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 15:21:43,108 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 15:21:43,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:21:43,110 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-08-27 15:21:43,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:21:43,110 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:21:43,110 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-08-27 15:21:43,111 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-08-27 15:21:43,115 INFO L791 eck$LassoCheckResult]: Stem: 4#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; 9#L33true assume main_~MAXPATHLEN~0 > 0 && main_~MAXPATHLEN~0 < 2147483647; 7#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; 11#L38-2true [2021-08-27 15:21:43,115 INFO L793 eck$LassoCheckResult]: Loop: 11#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; 13#L18true assume !(0 == __VERIFIER_assert_~cond); 14#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; 15#L18-3true assume !(0 == __VERIFIER_assert_~cond); 6#L18-5true main_#t~post4 := main_~glob2_p_off~0;main_~glob2_p_off~0 := 1 + main_#t~post4;havoc main_#t~post4; 11#L38-2true [2021-08-27 15:21:43,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:21:43,122 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2021-08-27 15:21:43,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:21:43,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992455402] [2021-08-27 15:21:43,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:21:43,130 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:21:43,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:21:43,208 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:21:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:21:43,247 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:21:43,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:21:43,255 INFO L82 PathProgramCache]: Analyzing trace with hash 45071031, now seen corresponding path program 1 times [2021-08-27 15:21:43,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:21:43,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117943719] [2021-08-27 15:21:43,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:21:43,257 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:21:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:21:43,273 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:21:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:21:43,283 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:21:43,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:21:43,285 INFO L82 PathProgramCache]: Analyzing trace with hash -589204783, now seen corresponding path program 1 times [2021-08-27 15:21:43,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:21:43,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374394521] [2021-08-27 15:21:43,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:21:43,285 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:21:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:21:43,315 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:21:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:21:43,333 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:21:43,495 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:21:43,496 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:21:43,496 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:21:43,496 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:21:43,496 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 15:21:43,496 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:21:43,496 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:21:43,496 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:21:43,496 INFO L133 ssoRankerPreferences]: Filename of dumped script: NetBSD_loop.i_Iteration1_Loop [2021-08-27 15:21:43,496 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:21:43,497 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:21:43,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:21:43,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:21:43,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:21:43,564 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:21:43,565 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 15:21:43,566 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:21:43,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:21:43,567 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:21:43,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-08-27 15:21:43,571 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 15:21:43,571 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 15:21:43,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-08-27 15:21:43,608 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:21:43,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:21:43,609 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:21:43,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-08-27 15:21:43,611 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 15:21:43,612 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 15:21:43,663 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 15:21:43,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-08-27 15:21:43,669 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:21:43,669 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:21:43,669 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:21:43,669 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:21:43,669 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:21:43,669 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:21:43,669 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:21:43,669 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:21:43,669 INFO L133 ssoRankerPreferences]: Filename of dumped script: NetBSD_loop.i_Iteration1_Loop [2021-08-27 15:21:43,669 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:21:43,669 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:21:43,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:21:43,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:21:43,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:21:43,735 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:21:43,738 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:21:43,739 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:21:43,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:21:43,740 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:21:43,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-08-27 15:21:43,743 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:21:43,750 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:21:43,750 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:21:43,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:21:43,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:21:43,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:21:43,753 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:21:43,753 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:21:43,769 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:21:43,787 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-08-27 15:21:43,787 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:21:43,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:21:43,788 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:21:43,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-08-27 15:21:43,791 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:21:43,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:21:43,798 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:21:43,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:21:43,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:21:43,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:21:43,800 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:21:43,800 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:21:43,812 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:21:43,839 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 15:21:43,840 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 15:21:43,841 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:21:43,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:21:43,842 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:21:43,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-08-27 15:21:43,847 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:21:43,847 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 15:21:43,847 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:21:43,847 INFO L515 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 [] [2021-08-27 15:21:43,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-08-27 15:21:43,879 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 15:21:43,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:21:43,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:21:43,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 15:21:43,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:21:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:21:43,958 WARN L261 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 15:21:43,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:21:43,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-08-27 15:21:44,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:21:44,105 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 [2021-08-27 15:21:44,106 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:21:44,179 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 41 states and 51 transitions. Complement of second has 9 states. [2021-08-27 15:21:44,180 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 [2021-08-27 15:21:44,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:21:44,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 36 transitions. [2021-08-27 15:21:44,183 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 4 letters. Loop has 5 letters. [2021-08-27 15:21:44,183 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:21:44,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 9 letters. Loop has 5 letters. [2021-08-27 15:21:44,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:21:44,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 4 letters. Loop has 10 letters. [2021-08-27 15:21:44,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:21:44,184 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 51 transitions. [2021-08-27 15:21:44,188 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 15:21:44,189 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 0 states and 0 transitions. [2021-08-27 15:21:44,190 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 15:21:44,190 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 15:21:44,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 15:21:44,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:21:44,191 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:21:44,191 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:21:44,191 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:21:44,191 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 15:21:44,191 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 15:21:44,191 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 15:21:44,191 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 15:21:44,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 03:21:44 BoogieIcfgContainer [2021-08-27 15:21:44,194 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 15:21:44,195 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 15:21:44,195 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 15:21:44,195 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 15:21:44,195 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:21:43" (3/4) ... [2021-08-27 15:21:44,197 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 15:21:44,197 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 15:21:44,199 INFO L168 Benchmark]: Toolchain (without parser) took 1675.69 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 49.2 MB in the beginning and 40.6 MB in the end (delta: 8.6 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. [2021-08-27 15:21:44,200 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 67.1 MB. Free memory is still 50.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:21:44,200 INFO L168 Benchmark]: CACSL2BoogieTranslator took 135.32 ms. Allocated memory is still 67.1 MB. Free memory was 48.9 MB in the beginning and 39.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-27 15:21:44,201 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.59 ms. Allocated memory is still 67.1 MB. Free memory was 39.4 MB in the beginning and 52.0 MB in the end (delta: -12.6 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:21:44,201 INFO L168 Benchmark]: Boogie Preprocessor took 12.06 ms. Allocated memory is still 67.1 MB. Free memory was 52.0 MB in the beginning and 51.1 MB in the end (delta: 954.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:21:44,202 INFO L168 Benchmark]: RCFGBuilder took 284.48 ms. Allocated memory is still 67.1 MB. Free memory was 50.8 MB in the beginning and 39.2 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-27 15:21:44,206 INFO L168 Benchmark]: BuchiAutomizer took 1188.96 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 39.2 MB in the beginning and 40.6 MB in the end (delta: -1.3 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. [2021-08-27 15:21:44,206 INFO L168 Benchmark]: Witness Printer took 2.47 ms. Allocated memory is still 86.0 MB. Free memory is still 40.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:21:44,210 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 67.1 MB. Free memory is still 50.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 135.32 ms. Allocated memory is still 67.1 MB. Free memory was 48.9 MB in the beginning and 39.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.59 ms. Allocated memory is still 67.1 MB. Free memory was 39.4 MB in the beginning and 52.0 MB in the end (delta: -12.6 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 12.06 ms. Allocated memory is still 67.1 MB. Free memory was 52.0 MB in the beginning and 51.1 MB in the end (delta: 954.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 284.48 ms. Allocated memory is still 67.1 MB. Free memory was 50.8 MB in the beginning and 39.2 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1188.96 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 39.2 MB in the beginning and 40.6 MB in the end (delta: -1.3 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. * Witness Printer took 2.47 ms. Allocated memory is still 86.0 MB. Free memory is still 40.6 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 * glob2_p_off + 2 * MAXPATHLEN + 1 and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. 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: 13 SDtfs, 19 SDslu, 13 SDs, 0 SdLazy, 19 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.6ms 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: 30ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-08-27 15:21:44,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...