./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety-ext/skiplist_2lvl.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version da95e156 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/memsafety-ext/skiplist_2lvl.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 8891100700cfdaa5891399ddd63f93f16d07482f .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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/memsafety-ext/skiplist_2lvl.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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 8891100700cfdaa5891399ddd63f93f16d07482f ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-da95e15 [2019-11-27 11:21:14,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 11:21:14,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 11:21:14,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 11:21:14,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 11:21:14,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 11:21:14,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 11:21:14,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 11:21:14,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 11:21:14,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 11:21:14,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 11:21:14,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 11:21:14,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 11:21:14,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 11:21:14,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 11:21:14,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 11:21:14,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 11:21:14,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 11:21:14,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 11:21:14,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 11:21:14,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 11:21:14,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 11:21:14,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 11:21:14,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 11:21:14,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 11:21:14,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 11:21:14,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 11:21:14,411 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 11:21:14,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 11:21:14,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 11:21:14,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 11:21:14,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 11:21:14,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 11:21:14,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 11:21:14,423 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 11:21:14,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 11:21:14,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 11:21:14,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 11:21:14,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 11:21:14,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 11:21:14,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 11:21:14,430 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-27 11:21:14,458 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 11:21:14,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 11:21:14,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 11:21:14,465 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 11:21:14,465 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 11:21:14,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 11:21:14,465 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 11:21:14,466 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-27 11:21:14,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 11:21:14,466 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 11:21:14,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 11:21:14,467 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-27 11:21:14,467 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-27 11:21:14,468 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-27 11:21:14,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 11:21:14,470 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-27 11:21:14,470 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 11:21:14,470 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 11:21:14,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 11:21:14,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 11:21:14,471 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 11:21:14,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 11:21:14,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 11:21:14,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 11:21:14,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 11:21:14,473 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 11:21:14,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 11:21:14,474 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 -> 8891100700cfdaa5891399ddd63f93f16d07482f [2019-11-27 11:21:14,911 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 11:21:14,928 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 11:21:14,934 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 11:21:14,936 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 11:21:14,938 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 11:21:14,939 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext/skiplist_2lvl.i [2019-11-27 11:21:15,049 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5132902f/54496b327b8b47389b44335bb8b0e524/FLAG9d319cab8 [2019-11-27 11:21:15,844 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 11:21:15,846 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext/skiplist_2lvl.i [2019-11-27 11:21:15,871 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5132902f/54496b327b8b47389b44335bb8b0e524/FLAG9d319cab8 [2019-11-27 11:21:16,067 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5132902f/54496b327b8b47389b44335bb8b0e524 [2019-11-27 11:21:16,072 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 11:21:16,081 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-27 11:21:16,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 11:21:16,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 11:21:16,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 11:21:16,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:21:16" (1/1) ... [2019-11-27 11:21:16,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36c7b1f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:16, skipping insertion in model container [2019-11-27 11:21:16,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:21:16" (1/1) ... [2019-11-27 11:21:16,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 11:21:16,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 11:21:16,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 11:21:16,809 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 11:21:16,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 11:21:16,979 INFO L208 MainTranslator]: Completed translation [2019-11-27 11:21:16,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:16 WrapperNode [2019-11-27 11:21:16,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 11:21:16,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 11:21:16,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 11:21:16,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 11:21:16,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:16" (1/1) ... [2019-11-27 11:21:16,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:16" (1/1) ... [2019-11-27 11:21:17,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:16" (1/1) ... [2019-11-27 11:21:17,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:16" (1/1) ... [2019-11-27 11:21:17,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:16" (1/1) ... [2019-11-27 11:21:17,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:16" (1/1) ... [2019-11-27 11:21:17,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:16" (1/1) ... [2019-11-27 11:21:17,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 11:21:17,130 INFO L168 Benchmark]: Toolchain (without parser) took 1051.63 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.3 MB in the beginning and 978.3 MB in the end (delta: -18.1 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 11:21:17,146 INFO L168 Benchmark]: CDTParser took 2.40 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. [2019-11-27 11:21:17,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 895.90 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.3 MB in the beginning and 978.3 MB in the end (delta: -18.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 12.5 GB. [2019-11-27 11:21:17,149 INFO L168 Benchmark]: Boogie Preprocessor took 142.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.3 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 11:21:17,151 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.40 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 895.90 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.3 MB in the beginning and 978.3 MB in the end (delta: -18.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 142.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.3 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... ### Bit-precise run ### This is Ultimate 0.1.24-da95e15 [2019-11-27 11:21:19,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 11:21:19,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 11:21:19,890 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 11:21:19,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 11:21:19,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 11:21:19,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 11:21:19,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 11:21:19,917 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 11:21:19,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 11:21:19,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 11:21:19,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 11:21:19,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 11:21:19,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 11:21:19,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 11:21:19,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 11:21:19,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 11:21:19,938 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 11:21:19,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 11:21:19,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 11:21:19,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 11:21:19,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 11:21:19,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 11:21:19,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 11:21:19,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 11:21:19,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 11:21:19,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 11:21:19,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 11:21:19,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 11:21:19,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 11:21:19,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 11:21:19,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 11:21:19,976 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 11:21:19,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 11:21:19,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 11:21:19,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 11:21:19,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 11:21:19,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 11:21:19,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 11:21:19,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 11:21:19,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 11:21:19,990 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-27 11:21:20,018 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 11:21:20,020 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 11:21:20,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 11:21:20,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 11:21:20,025 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 11:21:20,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 11:21:20,026 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 11:21:20,026 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-27 11:21:20,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 11:21:20,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 11:21:20,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 11:21:20,027 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-27 11:21:20,028 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-27 11:21:20,028 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-27 11:21:20,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 11:21:20,030 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-27 11:21:20,030 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 11:21:20,030 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 11:21:20,031 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 11:21:20,031 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 11:21:20,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 11:21:20,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 11:21:20,035 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 11:21:20,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 11:21:20,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 11:21:20,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 11:21:20,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 11:21:20,036 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 11:21:20,036 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 11:21:20,036 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 11:21:20,037 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> 8891100700cfdaa5891399ddd63f93f16d07482f [2019-11-27 11:21:20,505 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 11:21:20,520 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 11:21:20,525 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 11:21:20,533 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 11:21:20,533 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 11:21:20,534 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext/skiplist_2lvl.i [2019-11-27 11:21:20,639 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e41c6ec27/dc0be9d285ca41de8adb63a3bd74baf6/FLAG705c149df [2019-11-27 11:21:21,454 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 11:21:21,456 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext/skiplist_2lvl.i [2019-11-27 11:21:21,481 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e41c6ec27/dc0be9d285ca41de8adb63a3bd74baf6/FLAG705c149df [2019-11-27 11:21:21,657 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e41c6ec27/dc0be9d285ca41de8adb63a3bd74baf6 [2019-11-27 11:21:21,664 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 11:21:21,667 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-27 11:21:21,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 11:21:21,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 11:21:21,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 11:21:21,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:21:21" (1/1) ... [2019-11-27 11:21:21,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a0a35f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:21, skipping insertion in model container [2019-11-27 11:21:21,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:21:21" (1/1) ... [2019-11-27 11:21:21,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 11:21:21,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 11:21:22,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 11:21:22,472 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 11:21:22,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 11:21:22,652 INFO L208 MainTranslator]: Completed translation [2019-11-27 11:21:22,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:22 WrapperNode [2019-11-27 11:21:22,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 11:21:22,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 11:21:22,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 11:21:22,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 11:21:22,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:22" (1/1) ... [2019-11-27 11:21:22,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:22" (1/1) ... [2019-11-27 11:21:22,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:22" (1/1) ... [2019-11-27 11:21:22,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:22" (1/1) ... [2019-11-27 11:21:22,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:22" (1/1) ... [2019-11-27 11:21:22,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:22" (1/1) ... [2019-11-27 11:21:22,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:22" (1/1) ... [2019-11-27 11:21:22,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 11:21:22,795 INFO L168 Benchmark]: Toolchain (without parser) took 1128.23 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 966.0 MB in the beginning and 972.8 MB in the end (delta: -6.8 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 11:21:22,797 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 994.6 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 11:21:22,802 INFO L168 Benchmark]: CACSL2BoogieTranslator took 980.16 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 966.0 MB in the beginning and 978.5 MB in the end (delta: -12.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 12.5 GB. [2019-11-27 11:21:22,803 INFO L168 Benchmark]: Boogie Preprocessor took 136.75 ms. Allocated memory is still 1.0 GB. Free memory was 978.5 MB in the beginning and 972.8 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 11:21:22,812 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 994.6 MB. There was no memory consumed. Max. memory is 12.5 GB. * CACSL2BoogieTranslator took 980.16 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 966.0 MB in the beginning and 978.5 MB in the end (delta: -12.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 136.75 ms. Allocated memory is still 1.0 GB. Free memory was 978.5 MB in the beginning and 972.8 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...