./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/ldv-regression/test21-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 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/ldv-regression/test21-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 712c5452cee1b4c02208da17c2cf0dc9636485194e157c656e1372fe334269f7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 15:05:05,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 15:05:05,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 15:05:05,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 15:05:05,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 15:05:05,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 15:05:05,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 15:05:05,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 15:05:05,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 15:05:05,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 15:05:05,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 15:05:05,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 15:05:05,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 15:05:05,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 15:05:05,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 15:05:05,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 15:05:05,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 15:05:05,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 15:05:05,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 15:05:05,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 15:05:05,774 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 15:05:05,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 15:05:05,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 15:05:05,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 15:05:05,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 15:05:05,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 15:05:05,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 15:05:05,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 15:05:05,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 15:05:05,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 15:05:05,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 15:05:05,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 15:05:05,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 15:05:05,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 15:05:05,791 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 15:05:05,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 15:05:05,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 15:05:05,793 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 15:05:05,793 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 15:05:05,793 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 15:05:05,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 15:05:05,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 15:05:05,797 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-23 15:05:05,834 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 15:05:05,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 15:05:05,835 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 15:05:05,835 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 15:05:05,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 15:05:05,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 15:05:05,837 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 15:05:05,837 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 15:05:05,837 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 15:05:05,838 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 15:05:05,838 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 15:05:05,838 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 15:05:05,839 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 15:05:05,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 15:05:05,839 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 15:05:05,839 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 15:05:05,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 15:05:05,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 15:05:05,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 15:05:05,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 15:05:05,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 15:05:05,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 15:05:05,841 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 15:05:05,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 15:05:05,842 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 15:05:05,842 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 15:05:05,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 15:05:05,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 15:05:05,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 15:05:05,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 15:05:05,843 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 15:05:05,844 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 15:05:05,844 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 712c5452cee1b4c02208da17c2cf0dc9636485194e157c656e1372fe334269f7 [2022-07-23 15:05:06,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 15:05:06,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 15:05:06,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 15:05:06,124 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 15:05:06,125 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 15:05:06,126 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test21-2.c [2022-07-23 15:05:06,180 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c35c3809a/ab86dd9f54ed45f48c48ecd2d1bbb0fa/FLAG965c23371 [2022-07-23 15:05:06,621 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 15:05:06,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test21-2.c [2022-07-23 15:05:06,627 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c35c3809a/ab86dd9f54ed45f48c48ecd2d1bbb0fa/FLAG965c23371 [2022-07-23 15:05:06,645 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c35c3809a/ab86dd9f54ed45f48c48ecd2d1bbb0fa [2022-07-23 15:05:06,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 15:05:06,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 15:05:06,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 15:05:06,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 15:05:06,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 15:05:06,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:05:06" (1/1) ... [2022-07-23 15:05:06,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e4288fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:05:06, skipping insertion in model container [2022-07-23 15:05:06,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:05:06" (1/1) ... [2022-07-23 15:05:06,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 15:05:06,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 15:05:06,840 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/ldv-regression/test21-2.c[892,905] [2022-07-23 15:05:06,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:05:06,848 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 15:05:06,864 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/ldv-regression/test21-2.c[892,905] [2022-07-23 15:05:06,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:05:06,877 INFO L208 MainTranslator]: Completed translation [2022-07-23 15:05:06,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:05:06 WrapperNode [2022-07-23 15:05:06,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 15:05:06,879 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 15:05:06,879 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 15:05:06,880 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 15:05:06,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:05:06" (1/1) ... [2022-07-23 15:05:06,892 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:05:06" (1/1) ... [2022-07-23 15:05:06,909 INFO L137 Inliner]: procedures = 16, calls = 23, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 68 [2022-07-23 15:05:06,909 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 15:05:06,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 15:05:06,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 15:05:06,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 15:05:06,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:05:06" (1/1) ... [2022-07-23 15:05:06,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:05:06" (1/1) ... [2022-07-23 15:05:06,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:05:06" (1/1) ... [2022-07-23 15:05:06,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:05:06" (1/1) ... [2022-07-23 15:05:06,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:05:06" (1/1) ... [2022-07-23 15:05:06,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:05:06" (1/1) ... [2022-07-23 15:05:06,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:05:06" (1/1) ... [2022-07-23 15:05:06,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 15:05:06,929 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 15:05:06,929 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 15:05:06,929 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 15:05:06,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:05:06" (1/1) ... [2022-07-23 15:05:06,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 15:05:06,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 15:05:06,967 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) [2022-07-23 15:05:06,968 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 [2022-07-23 15:05:06,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 15:05:06,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 15:05:06,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 15:05:06,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 15:05:06,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 15:05:06,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 15:05:07,052 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 15:05:07,053 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 15:05:07,228 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 15:05:07,233 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 15:05:07,233 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 15:05:07,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:05:07 BoogieIcfgContainer [2022-07-23 15:05:07,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 15:05:07,236 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 15:05:07,236 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 15:05:07,239 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 15:05:07,239 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:05:07,240 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 03:05:06" (1/3) ... [2022-07-23 15:05:07,240 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1087d98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:05:07, skipping insertion in model container [2022-07-23 15:05:07,241 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:05:07,241 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:05:06" (2/3) ... [2022-07-23 15:05:07,241 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1087d98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:05:07, skipping insertion in model container [2022-07-23 15:05:07,241 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:05:07,241 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:05:07" (3/3) ... [2022-07-23 15:05:07,242 INFO L354 chiAutomizerObserver]: Analyzing ICFG test21-2.c [2022-07-23 15:05:07,330 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 15:05:07,330 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 15:05:07,331 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 15:05:07,331 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 15:05:07,331 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 15:05:07,331 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 15:05:07,331 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 15:05:07,331 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 15:05:07,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 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) [2022-07-23 15:05:07,364 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-23 15:05:07,365 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-23 15:05:07,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.07 03:05:07 BoogieIcfgContainer [2022-07-23 15:05:07,376 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-23 15:05:07,380 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 15:05:07,380 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 15:05:07,380 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 15:05:07,381 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:05:07" (3/4) ... [2022-07-23 15:05:07,383 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-23 15:05:07,383 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 15:05:07,385 INFO L158 Benchmark]: Toolchain (without parser) took 736.05ms. Allocated memory is still 98.6MB. Free memory was 71.1MB in the beginning and 55.3MB in the end (delta: 15.8MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2022-07-23 15:05:07,385 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 98.6MB. Free memory is still 55.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 15:05:07,386 INFO L158 Benchmark]: CACSL2BoogieTranslator took 222.70ms. Allocated memory is still 98.6MB. Free memory was 70.8MB in the beginning and 74.2MB in the end (delta: -3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-23 15:05:07,387 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.24ms. Allocated memory is still 98.6MB. Free memory was 74.2MB in the beginning and 72.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:05:07,387 INFO L158 Benchmark]: Boogie Preprocessor took 18.33ms. Allocated memory is still 98.6MB. Free memory was 72.6MB in the beginning and 71.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:05:07,388 INFO L158 Benchmark]: RCFGBuilder took 305.91ms. Allocated memory is still 98.6MB. Free memory was 71.3MB in the beginning and 61.0MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-23 15:05:07,389 INFO L158 Benchmark]: BuchiAutomizer took 143.47ms. Allocated memory is still 98.6MB. Free memory was 60.8MB in the beginning and 55.5MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-23 15:05:07,390 INFO L158 Benchmark]: Witness Printer took 3.58ms. Allocated memory is still 98.6MB. Free memory was 55.5MB in the beginning and 55.3MB in the end (delta: 241.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 15:05:07,394 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 98.6MB. Free memory is still 55.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 222.70ms. Allocated memory is still 98.6MB. Free memory was 70.8MB in the beginning and 74.2MB in the end (delta: -3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.24ms. Allocated memory is still 98.6MB. Free memory was 74.2MB in the beginning and 72.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.33ms. Allocated memory is still 98.6MB. Free memory was 72.6MB in the beginning and 71.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 305.91ms. Allocated memory is still 98.6MB. Free memory was 71.3MB in the beginning and 61.0MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 143.47ms. Allocated memory is still 98.6MB. Free memory was 60.8MB in the beginning and 55.5MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Witness Printer took 3.58ms. Allocated memory is still 98.6MB. Free memory was 55.5MB in the beginning and 55.3MB in the end (delta: 241.6kB). 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 Trivial decomposition. There is no loop in your program. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.0s and 0 iterations. TraceHistogramMax:0. Analysis of lassos took 0.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-23 15:05:07,440 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