./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f4b24e32 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/apache-escape-absolute.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 b5097186312a07da16ab8fdeadf6c0d6b4634620407ae37986153d9e0823e6f5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 15:40:50,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 15:40:50,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 15:40:50,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 15:40:50,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 15:40:50,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 15:40:50,879 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 15:40:50,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 15:40:50,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 15:40:50,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 15:40:50,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 15:40:50,893 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 15:40:50,893 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 15:40:50,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 15:40:50,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 15:40:50,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 15:40:50,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 15:40:50,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 15:40:50,902 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 15:40:50,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 15:40:50,907 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 15:40:50,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 15:40:50,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 15:40:50,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 15:40:50,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 15:40:50,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 15:40:50,914 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 15:40:50,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 15:40:50,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 15:40:50,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 15:40:50,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 15:40:50,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 15:40:50,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 15:40:50,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 15:40:50,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 15:40:50,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 15:40:50,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 15:40:50,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 15:40:50,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 15:40:50,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 15:40:50,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 15:40:50,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 15:40:50,923 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-14 15:40:50,947 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 15:40:50,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 15:40:50,950 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 15:40:50,950 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 15:40:50,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 15:40:50,952 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 15:40:50,952 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 15:40:50,952 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 15:40:50,952 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 15:40:50,953 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 15:40:50,953 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 15:40:50,953 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 15:40:50,953 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 15:40:50,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 15:40:50,953 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 15:40:50,953 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 15:40:50,954 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 15:40:50,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 15:40:50,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 15:40:50,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 15:40:50,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 15:40:50,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 15:40:50,955 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 15:40:50,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 15:40:50,956 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 15:40:50,956 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 15:40:50,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 15:40:50,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 15:40:50,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 15:40:50,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 15:40:50,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 15:40:50,957 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 15:40:50,958 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5097186312a07da16ab8fdeadf6c0d6b4634620407ae37986153d9e0823e6f5 [2022-07-14 15:40:51,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 15:40:51,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 15:40:51,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 15:40:51,178 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 15:40:51,179 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 15:40:51,180 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2022-07-14 15:40:51,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85e9e9b21/fd2c7ad702824196b50de04139feec81/FLAG8794c511a [2022-07-14 15:40:51,584 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 15:40:51,584 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2022-07-14 15:40:51,589 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85e9e9b21/fd2c7ad702824196b50de04139feec81/FLAG8794c511a [2022-07-14 15:40:51,605 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85e9e9b21/fd2c7ad702824196b50de04139feec81 [2022-07-14 15:40:51,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 15:40:51,609 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 15:40:51,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 15:40:51,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 15:40:51,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 15:40:51,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:40:51" (1/1) ... [2022-07-14 15:40:51,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fd9e5fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:40:51, skipping insertion in model container [2022-07-14 15:40:51,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:40:51" (1/1) ... [2022-07-14 15:40:51,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 15:40:51,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 15:40:51,776 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/apache-escape-absolute.i[893,906] [2022-07-14 15:40:51,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:40:51,794 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 15:40:51,802 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/apache-escape-absolute.i[893,906] [2022-07-14 15:40:51,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:40:51,817 INFO L208 MainTranslator]: Completed translation [2022-07-14 15:40:51,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:40:51 WrapperNode [2022-07-14 15:40:51,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 15:40:51,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 15:40:51,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 15:40:51,819 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 15:40:51,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:40:51" (1/1) ... [2022-07-14 15:40:51,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:40:51" (1/1) ... [2022-07-14 15:40:51,849 INFO L137 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 207 [2022-07-14 15:40:51,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 15:40:51,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 15:40:51,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 15:40:51,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 15:40:51,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:40:51" (1/1) ... [2022-07-14 15:40:51,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:40:51" (1/1) ... [2022-07-14 15:40:51,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:40:51" (1/1) ... [2022-07-14 15:40:51,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:40:51" (1/1) ... [2022-07-14 15:40:51,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:40:51" (1/1) ... [2022-07-14 15:40:51,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:40:51" (1/1) ... [2022-07-14 15:40:51,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:40:51" (1/1) ... [2022-07-14 15:40:51,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 15:40:51,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 15:40:51,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 15:40:51,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 15:40:51,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:40:51" (1/1) ... [2022-07-14 15:40:51,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:40:51,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:40:51,933 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) [2022-07-14 15:40:51,947 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 [2022-07-14 15:40:51,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 15:40:51,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 15:40:51,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 15:40:51,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 15:40:52,007 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 15:40:52,008 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 15:40:52,169 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 15:40:52,173 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 15:40:52,174 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-14 15:40:52,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:40:52 BoogieIcfgContainer [2022-07-14 15:40:52,175 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 15:40:52,176 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 15:40:52,176 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 15:40:52,179 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 15:40:52,179 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:40:52,179 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 03:40:51" (1/3) ... [2022-07-14 15:40:52,180 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3608fc51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:40:52, skipping insertion in model container [2022-07-14 15:40:52,180 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:40:52,180 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:40:51" (2/3) ... [2022-07-14 15:40:52,180 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3608fc51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:40:52, skipping insertion in model container [2022-07-14 15:40:52,180 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:40:52,181 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:40:52" (3/3) ... [2022-07-14 15:40:52,181 INFO L354 chiAutomizerObserver]: Analyzing ICFG apache-escape-absolute.i [2022-07-14 15:40:52,241 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 15:40:52,241 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 15:40:52,241 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 15:40:52,241 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 15:40:52,241 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 15:40:52,241 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 15:40:52,242 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 15:40:52,242 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 15:40:52,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.4605263157894737) internal successors, (111), 76 states have internal predecessors, (111), 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) [2022-07-14 15:40:52,265 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 29 [2022-07-14 15:40:52,265 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:40:52,265 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:40:52,269 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:40:52,270 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-07-14 15:40:52,270 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 15:40:52,270 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.4605263157894737) internal successors, (111), 76 states have internal predecessors, (111), 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) [2022-07-14 15:40:52,275 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 29 [2022-07-14 15:40:52,275 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:40:52,275 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:40:52,279 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 15:40:52,280 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-07-14 15:40:52,284 INFO L752 eck$LassoCheckResult]: Stem: 62#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); 50#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~nondet4#1, main_#t~nondet5#1, main_#t~pre6#1, main_#t~pre7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~pre10#1, main_#t~pre11#1, main_~scheme~0#1, main_~urilen~0#1, main_~tokenlen~0#1, main_~cp~0#1, main_~c~0#1;havoc main_~scheme~0#1;havoc main_~urilen~0#1;havoc main_~tokenlen~0#1;havoc main_~cp~0#1;havoc main_~c~0#1;main_~urilen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~tokenlen~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~scheme~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 26#L32true assume !!(main_~urilen~0#1 <= 1000000 && main_~urilen~0#1 >= -1000000); 25#L33true assume !!(main_~tokenlen~0#1 <= 1000000 && main_~tokenlen~0#1 >= -1000000); 34#L34true assume !!(main_~scheme~0#1 <= 1000000 && main_~scheme~0#1 >= -1000000); 60#L35true assume main_~urilen~0#1 > 0; 52#L35-1true assume main_~tokenlen~0#1 > 0; 65#L36true assume main_~scheme~0#1 >= 0; 68#L37true assume !(0 == main_~scheme~0#1 || main_~urilen~0#1 - 1 < main_~scheme~0#1);main_~cp~0#1 := main_~scheme~0#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~cp~0#1 - 1 < main_~urilen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 31#L18true assume !(0 == __VERIFIER_assert_~cond#1); 56#L18-2true assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~cp~0#1 - 1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 58#L18-3true assume !(0 == __VERIFIER_assert_~cond#1); 3#L18-5true assume { :end_inline___VERIFIER_assert } true; 45#L44true assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~cp~0#1 < main_~urilen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 57#L18-6true assume !(0 == __VERIFIER_assert_~cond#1); 51#L18-8true assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~cp~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 70#L18-9true assume !(0 == __VERIFIER_assert_~cond#1); 35#L18-11true assume { :end_inline___VERIFIER_assert } true; 59#L47-2true [2022-07-14 15:40:52,285 INFO L754 eck$LassoCheckResult]: Loop: 59#L47-2true assume !!(main_~cp~0#1 != main_~urilen~0#1 - 1); 20#L48true assume !(0 != main_#t~nondet5#1);havoc main_#t~nondet5#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~cp~0#1 < main_~urilen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 10#L18-12true assume !(0 == __VERIFIER_assert_~cond#1); 28#L18-14true assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~cp~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 23#L18-15true assume !(0 == __VERIFIER_assert_~cond#1); 37#L18-17true assume { :end_inline___VERIFIER_assert } true;main_#t~pre6#1 := 1 + main_~cp~0#1;main_~cp~0#1 := 1 + main_~cp~0#1;havoc main_#t~pre6#1; 59#L47-2true [2022-07-14 15:40:52,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:40:52,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1239436696, now seen corresponding path program 1 times [2022-07-14 15:40:52,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:40:52,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803123419] [2022-07-14 15:40:52,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:40:52,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:40:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:40:52,389 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:40:52,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:40:52,422 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:40:52,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:40:52,424 INFO L85 PathProgramCache]: Analyzing trace with hash -680795444, now seen corresponding path program 1 times [2022-07-14 15:40:52,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:40:52,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204640148] [2022-07-14 15:40:52,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:40:52,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:40:52,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:40:52,433 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:40:52,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:40:52,440 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:40:52,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:40:52,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1742738445, now seen corresponding path program 1 times [2022-07-14 15:40:52,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:40:52,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596858082] [2022-07-14 15:40:52,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:40:52,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:40:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:40:52,459 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:40:52,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:40:52,475 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:40:52,624 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 15:40:52,625 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 15:40:52,625 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 15:40:52,625 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 15:40:52,626 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-14 15:40:52,626 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:40:52,626 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 15:40:52,626 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 15:40:52,626 INFO L133 ssoRankerPreferences]: Filename of dumped script: apache-escape-absolute.i_Iteration1_Loop [2022-07-14 15:40:52,627 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 15:40:52,627 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 15:40:52,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:40:52,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:40:52,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:40:52,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:40:52,718 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 15:40:52,720 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-14 15:40:52,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:40:52,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:40:52,727 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) [2022-07-14 15:40:52,728 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 [2022-07-14 15:40:52,731 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-14 15:40:52,731 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 15:40:52,769 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 [2022-07-14 15:40:52,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:40:52,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:40:52,771 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) [2022-07-14 15:40:52,772 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 [2022-07-14 15:40:52,774 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-14 15:40:52,774 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-14 15:40:52,822 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-14 15:40:52,826 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 [2022-07-14 15:40:52,826 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 15:40:52,826 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 15:40:52,826 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 15:40:52,826 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 15:40:52,826 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-14 15:40:52,826 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:40:52,826 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 15:40:52,827 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 15:40:52,827 INFO L133 ssoRankerPreferences]: Filename of dumped script: apache-escape-absolute.i_Iteration1_Loop [2022-07-14 15:40:52,827 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 15:40:52,827 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 15:40:52,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:40:52,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:40:52,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:40:52,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:40:52,904 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 15:40:52,907 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-14 15:40:52,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:40:52,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:40:52,915 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) [2022-07-14 15:40:52,927 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 [2022-07-14 15:40:52,927 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 [2022-07-14 15:40:52,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:40:52,934 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:40:52,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:40:52,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:40:52,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:40:52,936 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:40:52,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:40:52,951 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-14 15:40:52,956 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-14 15:40:52,956 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-14 15:40:52,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:40:52,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:40:52,959 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) [2022-07-14 15:40:52,964 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 [2022-07-14 15:40:52,996 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-14 15:40:52,997 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-14 15:40:52,997 INFO L513 LassoAnalysis]: Proved termination. [2022-07-14 15:40:52,998 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~cp~0#1, ULTIMATE.start_main_~urilen~0#1) = -1*ULTIMATE.start_main_~cp~0#1 + 1*ULTIMATE.start_main_~urilen~0#1 Supporting invariants [] [2022-07-14 15:40:53,013 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-07-14 15:40:53,016 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-14 15:40:53,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:40:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:40:53,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 15:40:53,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 15:40:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:40:53,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 15:40:53,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 15:40:53,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:40:53,148 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-14 15:40:53,149 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 77 states, 76 states have (on average 1.4605263157894737) internal successors, (111), 76 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2022-07-14 15:40:53,199 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 [2022-07-14 15:40:53,326 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 77 states, 76 states have (on average 1.4605263157894737) internal successors, (111), 76 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 215 states and 287 transitions. Complement of second has 11 states. [2022-07-14 15:40:53,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2022-07-14 15:40:53,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2022-07-14 15:40:53,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 215 transitions. [2022-07-14 15:40:53,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 215 transitions. Stem has 18 letters. Loop has 6 letters. [2022-07-14 15:40:53,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 15:40:53,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 215 transitions. Stem has 24 letters. Loop has 6 letters. [2022-07-14 15:40:53,333 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 15:40:53,333 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 215 transitions. Stem has 18 letters. Loop has 12 letters. [2022-07-14 15:40:53,333 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 15:40:53,333 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 215 states and 287 transitions. [2022-07-14 15:40:53,339 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-14 15:40:53,340 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 215 states to 0 states and 0 transitions. [2022-07-14 15:40:53,341 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-14 15:40:53,341 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-14 15:40:53,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-14 15:40:53,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:40:53,341 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 15:40:53,342 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 15:40:53,342 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 15:40:53,342 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 15:40:53,342 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-14 15:40:53,342 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-14 15:40:53,342 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-14 15:40:53,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 03:40:53 BoogieIcfgContainer [2022-07-14 15:40:53,346 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 15:40:53,347 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 15:40:53,347 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 15:40:53,347 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 15:40:53,347 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:40:52" (3/4) ... [2022-07-14 15:40:53,349 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-14 15:40:53,349 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 15:40:53,349 INFO L158 Benchmark]: Toolchain (without parser) took 1740.09ms. Allocated memory was 102.8MB in the beginning and 125.8MB in the end (delta: 23.1MB). Free memory was 69.9MB in the beginning and 88.8MB in the end (delta: -18.9MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2022-07-14 15:40:53,350 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 81.8MB. Free memory is still 43.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:40:53,350 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.53ms. Allocated memory is still 102.8MB. Free memory was 69.7MB in the beginning and 77.1MB in the end (delta: -7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-14 15:40:53,350 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.22ms. Allocated memory is still 102.8MB. Free memory was 77.1MB in the beginning and 75.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:40:53,351 INFO L158 Benchmark]: Boogie Preprocessor took 17.92ms. Allocated memory is still 102.8MB. Free memory was 75.4MB in the beginning and 73.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:40:53,351 INFO L158 Benchmark]: RCFGBuilder took 306.85ms. Allocated memory is still 102.8MB. Free memory was 73.9MB in the beginning and 60.7MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-14 15:40:53,351 INFO L158 Benchmark]: BuchiAutomizer took 1170.35ms. Allocated memory was 102.8MB in the beginning and 125.8MB in the end (delta: 23.1MB). Free memory was 60.4MB in the beginning and 88.8MB in the end (delta: -28.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:40:53,352 INFO L158 Benchmark]: Witness Printer took 2.27ms. Allocated memory is still 125.8MB. Free memory is still 88.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:40:53,353 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 81.8MB. Free memory is still 43.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 207.53ms. Allocated memory is still 102.8MB. Free memory was 69.7MB in the beginning and 77.1MB in the end (delta: -7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.22ms. Allocated memory is still 102.8MB. Free memory was 77.1MB in the beginning and 75.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.92ms. Allocated memory is still 102.8MB. Free memory was 75.4MB in the beginning and 73.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 306.85ms. Allocated memory is still 102.8MB. Free memory was 73.9MB in the beginning and 60.7MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 1170.35ms. Allocated memory was 102.8MB in the beginning and 125.8MB in the end (delta: 23.1MB). Free memory was 60.4MB in the beginning and 88.8MB in the end (delta: -28.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.27ms. Allocated memory is still 125.8MB. Free memory is still 88.8MB. 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 * cp + urilen and consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -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, 141 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 140 mSDsluCounter, 107 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 96 IncrementalHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 62 mSDtfsCounter, 96 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital28 mio100 ax100 hnf100 lsp67 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq163 hnf96 smp69 dnf100 smp100 tf109 neg95 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 89ms 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! [2022-07-14 15:40:53,377 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