./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c6eb4584 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f711e8fa055cb799c5be49ac147c434ba7c6e879 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-c6eb458-m [2019-11-16 22:20:11,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 22:20:11,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 22:20:11,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 22:20:11,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 22:20:11,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 22:20:11,912 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 22:20:11,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 22:20:11,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 22:20:11,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 22:20:11,943 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 22:20:11,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 22:20:11,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 22:20:11,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 22:20:11,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 22:20:11,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 22:20:11,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 22:20:11,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 22:20:11,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 22:20:11,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 22:20:11,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 22:20:11,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 22:20:11,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 22:20:12,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 22:20:12,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 22:20:12,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 22:20:12,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 22:20:12,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 22:20:12,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 22:20:12,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 22:20:12,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 22:20:12,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 22:20:12,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 22:20:12,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 22:20:12,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 22:20:12,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 22:20:12,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 22:20:12,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 22:20:12,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 22:20:12,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 22:20:12,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 22:20:12,038 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-16 22:20:12,092 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 22:20:12,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 22:20:12,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 22:20:12,104 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 22:20:12,104 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 22:20:12,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 22:20:12,106 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 22:20:12,106 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-16 22:20:12,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 22:20:12,108 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 22:20:12,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 22:20:12,109 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-16 22:20:12,109 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-16 22:20:12,109 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-16 22:20:12,111 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 22:20:12,112 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 22:20:12,116 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 22:20:12,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 22:20:12,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 22:20:12,117 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 22:20:12,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 22:20:12,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 22:20:12,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 22:20:12,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 22:20:12,119 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 22:20:12,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 22:20:12,119 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> f711e8fa055cb799c5be49ac147c434ba7c6e879 [2019-11-16 22:20:12,751 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 22:20:12,778 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 22:20:12,792 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 22:20:12,794 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 22:20:12,795 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 22:20:12,796 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-1.i [2019-11-16 22:20:12,957 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1afacaf8b/ab572cea609c48688d40dbf620344f84/FLAGdf8a77eae [2019-11-16 22:20:14,232 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 22:20:14,233 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/dll_circular_traversal-1.i [2019-11-16 22:20:14,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1afacaf8b/ab572cea609c48688d40dbf620344f84/FLAGdf8a77eae [2019-11-16 22:20:14,309 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1afacaf8b/ab572cea609c48688d40dbf620344f84 [2019-11-16 22:20:14,317 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 22:20:14,322 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-16 22:20:14,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 22:20:14,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 22:20:14,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 22:20:14,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:20:14" (1/1) ... [2019-11-16 22:20:14,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e71da25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:20:14, skipping insertion in model container [2019-11-16 22:20:14,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:20:14" (1/1) ... [2019-11-16 22:20:14,370 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 22:20:14,477 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 22:20:15,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 22:20:15,371 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 22:20:15,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 22:20:15,636 INFO L192 MainTranslator]: Completed translation [2019-11-16 22:20:15,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:20:15 WrapperNode [2019-11-16 22:20:15,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 22:20:15,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 22:20:15,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 22:20:15,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 22:20:15,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:20:15" (1/1) ... [2019-11-16 22:20:15,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:20:15" (1/1) ... [2019-11-16 22:20:15,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:20:15" (1/1) ... [2019-11-16 22:20:15,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:20:15" (1/1) ... [2019-11-16 22:20:15,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:20:15" (1/1) ... [2019-11-16 22:20:15,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:20:15" (1/1) ... [2019-11-16 22:20:15,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:20:15" (1/1) ... [2019-11-16 22:20:15,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 22:20:15,838 INFO L168 Benchmark]: Toolchain (without parser) took 1504.78 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 968.3 MB in the end (delta: -6.6 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-16 22:20:15,849 INFO L168 Benchmark]: CDTParser took 1.13 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-16 22:20:15,851 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1311.01 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 968.3 MB in the end (delta: -6.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-16 22:20:15,854 INFO L168 Benchmark]: Boogie Preprocessor took 184.02 ms. Allocated memory is still 1.0 GB. Free memory is still 968.3 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-16 22:20:15,864 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.13 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. * CACSL2BoogieTranslator took 1311.01 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 968.3 MB in the end (delta: -6.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 184.02 ms. Allocated memory is still 1.0 GB. Free memory is still 968.3 MB. There was no memory consumed. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...