./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 35987657 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/MADWiFi-encode_ie_ok.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 0816346248b67d4ea9c17aaea510056f7cd51786d8081f1e3a68c606118ae1c9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 02:20:08,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 02:20:08,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 02:20:08,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 02:20:08,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 02:20:08,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 02:20:08,873 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 02:20:08,876 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 02:20:08,883 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 02:20:08,888 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 02:20:08,889 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 02:20:08,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 02:20:08,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 02:20:08,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 02:20:08,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 02:20:08,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 02:20:08,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 02:20:08,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 02:20:08,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 02:20:08,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 02:20:08,915 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 02:20:08,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 02:20:08,918 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 02:20:08,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 02:20:08,920 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 02:20:08,926 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 02:20:08,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 02:20:08,927 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 02:20:08,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 02:20:08,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 02:20:08,929 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 02:20:08,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 02:20:08,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 02:20:08,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 02:20:08,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 02:20:08,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 02:20:08,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 02:20:08,935 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 02:20:08,935 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 02:20:08,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 02:20:08,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 02:20:08,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 02:20:08,946 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-22 02:20:08,982 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 02:20:08,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 02:20:08,983 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 02:20:08,983 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 02:20:08,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 02:20:08,985 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 02:20:08,985 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 02:20:08,985 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 02:20:08,986 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 02:20:08,986 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 02:20:08,987 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 02:20:08,987 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 02:20:08,987 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 02:20:08,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 02:20:08,987 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 02:20:08,988 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 02:20:08,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 02:20:08,988 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 02:20:08,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 02:20:08,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 02:20:08,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 02:20:08,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 02:20:08,989 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 02:20:08,989 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 02:20:08,989 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 02:20:08,989 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 02:20:08,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 02:20:08,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 02:20:08,990 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 02:20:08,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 02:20:08,991 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 02:20:08,993 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 02:20:08,993 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0816346248b67d4ea9c17aaea510056f7cd51786d8081f1e3a68c606118ae1c9 [2022-07-22 02:20:09,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 02:20:09,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 02:20:09,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 02:20:09,401 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 02:20:09,402 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 02:20:09,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i [2022-07-22 02:20:09,462 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b47cb66e8/b3eba30b353048498984bd134894ff44/FLAG31cafebc6 [2022-07-22 02:20:09,966 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 02:20:09,966 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i [2022-07-22 02:20:09,972 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b47cb66e8/b3eba30b353048498984bd134894ff44/FLAG31cafebc6 [2022-07-22 02:20:10,461 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b47cb66e8/b3eba30b353048498984bd134894ff44 [2022-07-22 02:20:10,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 02:20:10,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 02:20:10,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 02:20:10,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 02:20:10,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 02:20:10,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:20:10" (1/1) ... [2022-07-22 02:20:10,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d708e13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:10, skipping insertion in model container [2022-07-22 02:20:10,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:20:10" (1/1) ... [2022-07-22 02:20:10,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 02:20:10,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 02:20:10,646 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/loop-invgen/MADWiFi-encode_ie_ok.i[893,906] [2022-07-22 02:20:10,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:20:10,686 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 02:20:10,742 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/loop-invgen/MADWiFi-encode_ie_ok.i[893,906] [2022-07-22 02:20:10,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:20:10,759 INFO L208 MainTranslator]: Completed translation [2022-07-22 02:20:10,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:10 WrapperNode [2022-07-22 02:20:10,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 02:20:10,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 02:20:10,762 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 02:20:10,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 02:20:10,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:10" (1/1) ... [2022-07-22 02:20:10,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:10" (1/1) ... [2022-07-22 02:20:10,793 INFO L137 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2022-07-22 02:20:10,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 02:20:10,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 02:20:10,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 02:20:10,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 02:20:10,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:10" (1/1) ... [2022-07-22 02:20:10,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:10" (1/1) ... [2022-07-22 02:20:10,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:10" (1/1) ... [2022-07-22 02:20:10,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:10" (1/1) ... [2022-07-22 02:20:10,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:10" (1/1) ... [2022-07-22 02:20:10,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:10" (1/1) ... [2022-07-22 02:20:10,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:10" (1/1) ... [2022-07-22 02:20:10,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 02:20:10,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 02:20:10,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 02:20:10,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 02:20:10,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:10" (1/1) ... [2022-07-22 02:20:10,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:10,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:10,873 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) [2022-07-22 02:20:10,887 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 [2022-07-22 02:20:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 02:20:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 02:20:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 02:20:10,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 02:20:10,982 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 02:20:10,984 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 02:20:11,175 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 02:20:11,181 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 02:20:11,181 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 02:20:11,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:20:11 BoogieIcfgContainer [2022-07-22 02:20:11,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 02:20:11,184 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 02:20:11,184 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 02:20:11,186 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 02:20:11,187 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:20:11,187 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 02:20:10" (1/3) ... [2022-07-22 02:20:11,188 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@711717d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:20:11, skipping insertion in model container [2022-07-22 02:20:11,188 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:20:11,189 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:20:10" (2/3) ... [2022-07-22 02:20:11,189 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@711717d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:20:11, skipping insertion in model container [2022-07-22 02:20:11,189 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:20:11,189 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:20:11" (3/3) ... [2022-07-22 02:20:11,190 INFO L354 chiAutomizerObserver]: Analyzing ICFG MADWiFi-encode_ie_ok.i [2022-07-22 02:20:11,249 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 02:20:11,249 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 02:20:11,250 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 02:20:11,250 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 02:20:11,250 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 02:20:11,250 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 02:20:11,250 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 02:20:11,250 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 02:20:11,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 20 states have (on average 1.6) internal successors, (32), 20 states have internal predecessors, (32), 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) [2022-07-22 02:20:11,269 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-07-22 02:20:11,270 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:20:11,270 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:20:11,275 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:20:11,275 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-07-22 02:20:11,276 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 02:20:11,276 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 20 states have (on average 1.6) internal successors, (32), 20 states have internal predecessors, (32), 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) [2022-07-22 02:20:11,279 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-07-22 02:20:11,279 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:20:11,279 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:20:11,280 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:20:11,280 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-07-22 02:20:11,286 INFO L752 eck$LassoCheckResult]: Stem: 4#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(9, 2); 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_~p~0#1, main_~i~0#1, main_~leader_len~0#1, main_~bufsize~0#1, main_~bufsize_0~0#1, main_~ielen~0#1;havoc main_~p~0#1;havoc main_~i~0#1;havoc main_~leader_len~0#1;havoc main_~bufsize~0#1;havoc main_~bufsize_0~0#1;havoc main_~ielen~0#1;main_~leader_len~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~bufsize~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~ielen~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 20#L35true assume !!(main_~leader_len~0#1 < 1000000); 11#L36true assume !!(main_~bufsize~0#1 < 1000000); 12#L37true assume !!(main_~ielen~0#1 < 1000000); 17#L38true assume main_~leader_len~0#1 > 0; 5#L38-1true assume main_~bufsize~0#1 > 0; 22#L39true assume main_~ielen~0#1 > 0; 19#L40true assume !(main_~bufsize~0#1 < main_~leader_len~0#1);main_~p~0#1 := 0;main_~bufsize_0~0#1 := main_~bufsize~0#1;main_~bufsize~0#1 := main_~bufsize~0#1 - main_~leader_len~0#1;main_~p~0#1 := main_~p~0#1 + main_~leader_len~0#1; 6#L47true assume !(main_~bufsize~0#1 < 2 * main_~ielen~0#1);main_~i~0#1 := 0; 14#L49-3true [2022-07-22 02:20:11,287 INFO L754 eck$LassoCheckResult]: Loop: 14#L49-3true assume !!(main_~i~0#1 < main_~ielen~0#1 && main_~bufsize~0#1 > 2);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~p~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 13#L18true assume !(0 == __VERIFIER_assert_~cond#1); 15#L18-2true assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 1 + main_~p~0#1 < main_~bufsize_0~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 16#L18-3true assume !(0 == __VERIFIER_assert_~cond#1); 7#L18-5true assume { :end_inline___VERIFIER_assert } true;main_~p~0#1 := 2 + main_~p~0#1; 9#L49-2true main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 14#L49-3true [2022-07-22 02:20:11,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:11,298 INFO L85 PathProgramCache]: Analyzing trace with hash 763959638, now seen corresponding path program 1 times [2022-07-22 02:20:11,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:11,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505388574] [2022-07-22 02:20:11,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:11,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:11,386 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:11,440 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:11,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:11,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1832760911, now seen corresponding path program 1 times [2022-07-22 02:20:11,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:11,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867974972] [2022-07-22 02:20:11,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:11,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:11,477 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:11,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:11,504 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:11,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:11,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1043968186, now seen corresponding path program 1 times [2022-07-22 02:20:11,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:20:11,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204650528] [2022-07-22 02:20:11,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:20:11,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:20:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:11,527 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:20:11,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:20:11,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:20:11,744 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:20:11,745 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:20:11,745 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:20:11,745 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:20:11,746 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 02:20:11,746 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:11,746 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:20:11,746 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:20:11,746 INFO L133 ssoRankerPreferences]: Filename of dumped script: MADWiFi-encode_ie_ok.i_Iteration1_Loop [2022-07-22 02:20:11,746 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:20:11,747 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:20:11,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:11,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:11,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:11,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:11,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:11,911 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:20:11,912 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 02:20:11,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:11,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:11,915 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) [2022-07-22 02:20:11,926 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:20:11,926 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:11,940 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 [2022-07-22 02:20:11,990 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 [2022-07-22 02:20:11,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:11,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:11,993 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) [2022-07-22 02:20:11,999 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 [2022-07-22 02:20:12,001 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 02:20:12,001 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:20:12,056 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 02:20:12,063 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 [2022-07-22 02:20:12,063 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:20:12,063 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:20:12,063 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:20:12,063 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:20:12,063 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 02:20:12,064 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:12,064 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:20:12,064 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:20:12,064 INFO L133 ssoRankerPreferences]: Filename of dumped script: MADWiFi-encode_ie_ok.i_Iteration1_Loop [2022-07-22 02:20:12,064 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:20:12,064 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:20:12,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:12,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:12,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:12,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:12,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:20:12,158 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:20:12,162 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 02:20:12,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:12,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:12,177 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) [2022-07-22 02:20:12,189 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 [2022-07-22 02:20:12,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:20:12,199 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:20:12,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:20:12,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:20:12,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:20:12,206 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:20:12,206 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:20:12,211 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 [2022-07-22 02:20:12,230 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 02:20:12,238 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-22 02:20:12,239 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 02:20:12,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:20:12,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:20:12,247 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) [2022-07-22 02:20:12,248 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 [2022-07-22 02:20:12,249 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 02:20:12,249 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 02:20:12,250 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 02:20:12,250 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~p~0#1, ULTIMATE.start_main_~bufsize_0~0#1) = -1*ULTIMATE.start_main_~p~0#1 + 1*ULTIMATE.start_main_~bufsize_0~0#1 Supporting invariants [] [2022-07-22 02:20:12,267 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 [2022-07-22 02:20:12,270 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 02:20:12,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:20:12,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:12,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 02:20:12,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:20:12,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 02:20:12,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:20:12,455 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 [2022-07-22 02:20:12,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:20:12,530 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-07-22 02:20:12,532 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 21 states, 20 states have (on average 1.6) internal successors, (32), 20 states have internal predecessors, (32), 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 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-07-22 02:20:12,628 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 21 states, 20 states have (on average 1.6) internal successors, (32), 20 states have internal predecessors, (32), 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 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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 48 states and 66 transitions. Complement of second has 9 states. [2022-07-22 02:20:12,630 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 [2022-07-22 02:20:12,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-07-22 02:20:12,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 51 transitions. [2022-07-22 02:20:12,641 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 51 transitions. Stem has 10 letters. Loop has 6 letters. [2022-07-22 02:20:12,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:12,656 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 51 transitions. Stem has 16 letters. Loop has 6 letters. [2022-07-22 02:20:12,656 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:12,656 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 51 transitions. Stem has 10 letters. Loop has 12 letters. [2022-07-22 02:20:12,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:20:12,658 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 66 transitions. [2022-07-22 02:20:12,662 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 02:20:12,665 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 0 states and 0 transitions. [2022-07-22 02:20:12,666 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-22 02:20:12,666 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-22 02:20:12,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-22 02:20:12,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 02:20:12,667 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 02:20:12,667 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 02:20:12,667 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 02:20:12,668 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 02:20:12,669 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-22 02:20:12,669 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 02:20:12,669 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 02:20:12,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 02:20:12 BoogieIcfgContainer [2022-07-22 02:20:12,677 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 02:20:12,678 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 02:20:12,678 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 02:20:12,678 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 02:20:12,679 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:20:11" (3/4) ... [2022-07-22 02:20:12,687 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 02:20:12,688 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 02:20:12,689 INFO L158 Benchmark]: Toolchain (without parser) took 2222.57ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 35.3MB in the beginning and 39.2MB in the end (delta: -3.9MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2022-07-22 02:20:12,690 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 56.6MB. Free memory is still 38.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:20:12,691 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.63ms. Allocated memory is still 56.6MB. Free memory was 35.1MB in the beginning and 39.6MB in the end (delta: -4.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-22 02:20:12,692 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.27ms. Allocated memory is still 56.6MB. Free memory was 39.4MB in the beginning and 38.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 02:20:12,697 INFO L158 Benchmark]: Boogie Preprocessor took 37.44ms. Allocated memory is still 56.6MB. Free memory was 38.0MB in the beginning and 36.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:20:12,697 INFO L158 Benchmark]: RCFGBuilder took 349.04ms. Allocated memory is still 56.6MB. Free memory was 36.9MB in the beginning and 27.5MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-22 02:20:12,699 INFO L158 Benchmark]: BuchiAutomizer took 1493.38ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 27.5MB in the beginning and 39.2MB in the end (delta: -11.7MB). Peak memory consumption was 963.0kB. Max. memory is 16.1GB. [2022-07-22 02:20:12,700 INFO L158 Benchmark]: Witness Printer took 9.67ms. Allocated memory is still 69.2MB. Free memory is still 39.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:20:12,706 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 56.6MB. Free memory is still 38.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.63ms. Allocated memory is still 56.6MB. Free memory was 35.1MB in the beginning and 39.6MB in the end (delta: -4.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.27ms. Allocated memory is still 56.6MB. Free memory was 39.4MB in the beginning and 38.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.44ms. Allocated memory is still 56.6MB. Free memory was 38.0MB in the beginning and 36.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 349.04ms. Allocated memory is still 56.6MB. Free memory was 36.9MB in the beginning and 27.5MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1493.38ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 27.5MB in the beginning and 39.2MB in the end (delta: -11.7MB). Peak memory consumption was 963.0kB. Max. memory is 16.1GB. * Witness Printer took 9.67ms. Allocated memory is still 69.2MB. Free memory is still 39.2MB. 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 * p + bufsize_0 and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. 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 -1 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, 42 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 26 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital32 mio100 ax100 hnf100 lsp46 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq139 hnf95 smp100 dnf100 smp100 tf110 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 86ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-22 02:20:12,738 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