./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/for_bounded_loop1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ff03de63 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/loops/for_bounded_loop1.c -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 d362508cc6d10100af1abe34073a764b50319c9e1ae9c7cc9c70a242e3f5c8c4 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 22:21:14,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 22:21:14,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 22:21:14,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 22:21:14,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 22:21:14,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 22:21:14,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 22:21:14,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 22:21:14,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 22:21:14,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 22:21:14,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 22:21:14,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 22:21:14,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 22:21:14,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 22:21:14,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 22:21:14,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 22:21:14,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 22:21:14,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 22:21:14,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 22:21:14,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 22:21:14,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 22:21:14,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 22:21:14,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 22:21:14,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 22:21:14,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 22:21:14,932 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 22:21:14,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 22:21:14,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 22:21:14,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 22:21:14,935 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 22:21:14,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 22:21:14,936 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 22:21:14,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 22:21:14,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 22:21:14,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 22:21:14,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 22:21:14,940 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 22:21:14,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 22:21:14,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 22:21:14,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 22:21:14,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 22:21:14,943 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-21 22:21:14,976 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 22:21:14,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 22:21:14,977 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 22:21:14,977 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 22:21:14,978 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 22:21:14,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 22:21:14,979 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 22:21:14,979 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 22:21:14,979 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 22:21:14,980 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 22:21:14,980 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 22:21:14,980 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 22:21:14,981 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 22:21:14,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 22:21:14,981 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 22:21:14,981 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 22:21:14,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 22:21:14,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 22:21:14,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 22:21:14,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 22:21:14,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 22:21:14,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 22:21:14,983 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 22:21:14,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 22:21:14,983 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 22:21:14,983 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 22:21:14,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 22:21:14,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 22:21:14,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 22:21:14,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 22:21:14,984 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 22:21:14,985 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 22:21:14,986 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 22:21:14,986 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d362508cc6d10100af1abe34073a764b50319c9e1ae9c7cc9c70a242e3f5c8c4 [2021-12-21 22:21:15,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 22:21:15,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 22:21:15,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 22:21:15,229 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 22:21:15,230 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 22:21:15,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/for_bounded_loop1.c [2021-12-21 22:21:15,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d6deebeb/5f16c39310fe44d7866c66ca73c59564/FLAG9dfd741db [2021-12-21 22:21:15,650 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 22:21:15,651 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/for_bounded_loop1.c [2021-12-21 22:21:15,663 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d6deebeb/5f16c39310fe44d7866c66ca73c59564/FLAG9dfd741db [2021-12-21 22:21:16,068 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d6deebeb/5f16c39310fe44d7866c66ca73c59564 [2021-12-21 22:21:16,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 22:21:16,071 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 22:21:16,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 22:21:16,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 22:21:16,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 22:21:16,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:21:16" (1/1) ... [2021-12-21 22:21:16,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f9e3a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:21:16, skipping insertion in model container [2021-12-21 22:21:16,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:21:16" (1/1) ... [2021-12-21 22:21:16,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 22:21:16,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 22:21:16,242 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/for_bounded_loop1.c[416,429] [2021-12-21 22:21:16,255 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:21:16,262 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 22:21:16,273 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/for_bounded_loop1.c[416,429] [2021-12-21 22:21:16,279 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:21:16,294 INFO L208 MainTranslator]: Completed translation [2021-12-21 22:21:16,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:21:16 WrapperNode [2021-12-21 22:21:16,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 22:21:16,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 22:21:16,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 22:21:16,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 22:21:16,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:21:16" (1/1) ... [2021-12-21 22:21:16,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:21:16" (1/1) ... [2021-12-21 22:21:16,323 INFO L137 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 54 [2021-12-21 22:21:16,323 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 22:21:16,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 22:21:16,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 22:21:16,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 22:21:16,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:21:16" (1/1) ... [2021-12-21 22:21:16,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:21:16" (1/1) ... [2021-12-21 22:21:16,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:21:16" (1/1) ... [2021-12-21 22:21:16,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:21:16" (1/1) ... [2021-12-21 22:21:16,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:21:16" (1/1) ... [2021-12-21 22:21:16,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:21:16" (1/1) ... [2021-12-21 22:21:16,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:21:16" (1/1) ... [2021-12-21 22:21:16,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 22:21:16,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 22:21:16,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 22:21:16,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 22:21:16,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:21:16" (1/1) ... [2021-12-21 22:21:16,366 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:21:16,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:21:16,392 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) [2021-12-21 22:21:16,416 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 [2021-12-21 22:21:16,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 22:21:16,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 22:21:16,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 22:21:16,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 22:21:16,486 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 22:21:16,488 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 22:21:16,583 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 22:21:16,588 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 22:21:16,588 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 22:21:16,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:21:16 BoogieIcfgContainer [2021-12-21 22:21:16,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 22:21:16,590 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 22:21:16,591 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 22:21:16,593 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 22:21:16,594 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:21:16,594 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 10:21:16" (1/3) ... [2021-12-21 22:21:16,595 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76cbd6fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:21:16, skipping insertion in model container [2021-12-21 22:21:16,595 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:21:16,595 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:21:16" (2/3) ... [2021-12-21 22:21:16,595 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76cbd6fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:21:16, skipping insertion in model container [2021-12-21 22:21:16,596 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:21:16,596 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:21:16" (3/3) ... [2021-12-21 22:21:16,597 INFO L388 chiAutomizerObserver]: Analyzing ICFG for_bounded_loop1.c [2021-12-21 22:21:16,631 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 22:21:16,632 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 22:21:16,632 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 22:21:16,632 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 22:21:16,632 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 22:21:16,632 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 22:21:16,633 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 22:21:16,633 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 22:21:16,643 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 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) [2021-12-21 22:21:16,655 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-12-21 22:21:16,655 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:21:16,656 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:21:16,659 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-21 22:21:16,659 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:21:16,659 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 22:21:16,659 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 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) [2021-12-21 22:21:16,661 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-12-21 22:21:16,661 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:21:16,661 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:21:16,662 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-21 22:21:16,662 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:21:16,666 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet6#1, main_#t~post5#1, main_~i~0#1, main_~x~0#1, main_~y~0#1, main_~n~0#1;main_~i~0#1 := 0;main_~x~0#1 := 0;main_~y~0#1 := 0;main_~n~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 16#L21true assume !!(main_~n~0#1 > 0);main_~i~0#1 := 0; 19#L22-3true [2021-12-21 22:21:16,666 INFO L793 eck$LassoCheckResult]: Loop: 19#L22-3true assume !!(main_~i~0#1 < main_~n~0#1);main_~x~0#1 := main_~x~0#1 - main_~y~0#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 == main_~x~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 17#L10true assume !(0 == __VERIFIER_assert_~cond#1); 4#L10-2true assume { :end_inline___VERIFIER_assert } true;main_~y~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 6#L27true assume !!(0 != main_~y~0#1);main_~x~0#1 := main_~x~0#1 + main_~y~0#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 != main_~x~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 18#L10-3true assume !(0 == __VERIFIER_assert_~cond#1); 13#L10-5true assume { :end_inline___VERIFIER_assert } true; 11#L22-2true main_#t~post5#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 19#L22-3true [2021-12-21 22:21:16,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:21:16,671 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-12-21 22:21:16,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:21:16,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772716808] [2021-12-21 22:21:16,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:21:16,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:21:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:21:16,756 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:21:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:21:16,800 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:21:16,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:21:16,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1470643718, now seen corresponding path program 1 times [2021-12-21 22:21:16,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:21:16,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228698807] [2021-12-21 22:21:16,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:21:16,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:21:16,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:21:16,844 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:21:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:21:16,874 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:21:16,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:21:16,876 INFO L85 PathProgramCache]: Analyzing trace with hash -720609289, now seen corresponding path program 1 times [2021-12-21 22:21:16,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:21:16,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272932873] [2021-12-21 22:21:16,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:21:16,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:21:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:21:16,899 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:21:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:21:16,932 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:21:17,187 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:21:17,188 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:21:17,188 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:21:17,188 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:21:17,188 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-21 22:21:17,188 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:21:17,189 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:21:17,189 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:21:17,189 INFO L133 ssoRankerPreferences]: Filename of dumped script: for_bounded_loop1.c_Iteration1_Loop [2021-12-21 22:21:17,189 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:21:17,190 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:21:17,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:21:17,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:21:17,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:21:17,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:21:17,317 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 22:21:17,318 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-21 22:21:17,320 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:21:17,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:21:17,322 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) [2021-12-21 22:21:17,324 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 [2021-12-21 22:21:17,325 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 22:21:17,325 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 22:21:17,349 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-12-21 22:21:17,350 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:21:17,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:21:17,351 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) [2021-12-21 22:21:17,352 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 [2021-12-21 22:21:17,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-21 22:21:17,353 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 22:21:17,487 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-21 22:21:17,491 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 [2021-12-21 22:21:17,492 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:21:17,492 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:21:17,492 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:21:17,492 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:21:17,492 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 22:21:17,492 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:21:17,492 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:21:17,492 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:21:17,492 INFO L133 ssoRankerPreferences]: Filename of dumped script: for_bounded_loop1.c_Iteration1_Loop [2021-12-21 22:21:17,493 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:21:17,493 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:21:17,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:21:17,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:21:17,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:21:17,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:21:17,622 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 22:21:17,635 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 22:21:17,636 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:21:17,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:21:17,638 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) [2021-12-21 22:21:17,638 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 [2021-12-21 22:21:17,639 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 [2021-12-21 22:21:17,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:21:17,647 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:21:17,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:21:17,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:21:17,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:21:17,649 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:21:17,649 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:21:17,659 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 22:21:17,665 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-12-21 22:21:17,666 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-21 22:21:17,667 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:21:17,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:21:17,668 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) [2021-12-21 22:21:17,678 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 22:21:17,678 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-21 22:21:17,679 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 22:21:17,679 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2021-12-21 22:21:17,689 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 [2021-12-21 22:21:17,699 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 [2021-12-21 22:21:17,702 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-21 22:21:17,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:21:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:21:17,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 22:21:17,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:21:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:21:17,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 22:21:17,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:21:17,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:21:17,827 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-21 22:21:17,828 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 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 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-12-21 22:21:17,862 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 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 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 60 states and 73 transitions. Complement of second has 7 states. [2021-12-21 22:21:17,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-21 22:21:17,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-12-21 22:21:17,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 50 transitions. [2021-12-21 22:21:17,869 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 50 transitions. Stem has 3 letters. Loop has 7 letters. [2021-12-21 22:21:17,870 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:21:17,870 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 50 transitions. Stem has 10 letters. Loop has 7 letters. [2021-12-21 22:21:17,870 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:21:17,870 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 50 transitions. Stem has 3 letters. Loop has 14 letters. [2021-12-21 22:21:17,871 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:21:17,871 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 73 transitions. [2021-12-21 22:21:17,875 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 22:21:17,877 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 0 states and 0 transitions. [2021-12-21 22:21:17,877 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-21 22:21:17,877 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-21 22:21:17,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-21 22:21:17,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:21:17,878 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:21:17,878 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:21:17,878 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:21:17,879 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-21 22:21:17,879 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-21 22:21:17,879 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 22:21:17,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-21 22:21:17,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 10:21:17 BoogieIcfgContainer [2021-12-21 22:21:17,885 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 22:21:17,885 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 22:21:17,885 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 22:21:17,886 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 22:21:17,886 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:21:16" (3/4) ... [2021-12-21 22:21:17,888 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 22:21:17,889 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 22:21:17,889 INFO L158 Benchmark]: Toolchain (without parser) took 1818.15ms. Allocated memory is still 111.1MB. Free memory was 80.6MB in the beginning and 73.2MB in the end (delta: 7.4MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2021-12-21 22:21:17,890 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 86.0MB. Free memory was 45.5MB in the beginning and 45.5MB in the end (delta: 39.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:21:17,891 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.71ms. Allocated memory is still 111.1MB. Free memory was 80.5MB in the beginning and 88.4MB in the end (delta: -7.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 22:21:17,891 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.33ms. Allocated memory is still 111.1MB. Free memory was 88.4MB in the beginning and 87.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:21:17,892 INFO L158 Benchmark]: Boogie Preprocessor took 33.82ms. Allocated memory is still 111.1MB. Free memory was 87.0MB in the beginning and 86.4MB in the end (delta: 671.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:21:17,892 INFO L158 Benchmark]: RCFGBuilder took 231.45ms. Allocated memory is still 111.1MB. Free memory was 85.8MB in the beginning and 76.5MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 22:21:17,893 INFO L158 Benchmark]: BuchiAutomizer took 1294.45ms. Allocated memory is still 111.1MB. Free memory was 76.5MB in the beginning and 73.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2021-12-21 22:21:17,893 INFO L158 Benchmark]: Witness Printer took 3.34ms. Allocated memory is still 111.1MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:21:17,896 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 86.0MB. Free memory was 45.5MB in the beginning and 45.5MB in the end (delta: 39.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.71ms. Allocated memory is still 111.1MB. Free memory was 80.5MB in the beginning and 88.4MB in the end (delta: -7.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.33ms. Allocated memory is still 111.1MB. Free memory was 88.4MB in the beginning and 87.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.82ms. Allocated memory is still 111.1MB. Free memory was 87.0MB in the beginning and 86.4MB in the end (delta: 671.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 231.45ms. Allocated memory is still 111.1MB. Free memory was 85.8MB in the beginning and 76.5MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1294.45ms. Allocated memory is still 111.1MB. Free memory was 76.5MB in the beginning and 73.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * Witness Printer took 3.34ms. Allocated memory is still 111.1MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. * 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 -1 * i + n and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 22 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital33 mio100 ax100 hnf100 lsp57 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq205 hnf92 smp100 dnf177 smp100 tf103 neg96 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 42ms VariablesStem: 0 VariablesLoop: 3 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! [2021-12-21 22:21:17,920 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 [2021-12-21 22:21:18,132 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE