./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/list-properties/simple_built_from_end.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-properties/simple_built_from_end.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 41b5142f2d6582efd6d9a128e4dfef83faaab097 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 22:19:55,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 22:19:55,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 22:19:55,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 22:19:55,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 22:19:55,643 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 22:19:55,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 22:19:55,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 22:19:55,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 22:19:55,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 22:19:55,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 22:19:55,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 22:19:55,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 22:19:55,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 22:19:55,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 22:19:55,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 22:19:55,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 22:19:55,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 22:19:55,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 22:19:55,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 22:19:55,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 22:19:55,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 22:19:55,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 22:19:55,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 22:19:55,755 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 22:19:55,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 22:19:55,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 22:19:55,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 22:19:55,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 22:19:55,762 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 22:19:55,762 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 22:19:55,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 22:19:55,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 22:19:55,769 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 22:19:55,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 22:19:55,774 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 22:19:55,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 22:19:55,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 22:19:55,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 22:19:55,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 22:19:55,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 22:19:55,784 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-16 22:19:55,826 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 22:19:55,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 22:19:55,833 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 22:19:55,834 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 22:19:55,834 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 22:19:55,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 22:19:55,838 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 22:19:55,839 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-16 22:19:55,839 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 22:19:55,839 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 22:19:55,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 22:19:55,841 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-16 22:19:55,841 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-16 22:19:55,842 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-16 22:19:55,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 22:19:55,844 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 22:19:55,844 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 22:19:55,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 22:19:55,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 22:19:55,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 22:19:55,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 22:19:55,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 22:19:55,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 22:19:55,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 22:19:55,851 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 22:19:55,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 22:19:55,852 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 -> 41b5142f2d6582efd6d9a128e4dfef83faaab097 [2019-11-16 22:19:56,460 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 22:19:56,497 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 22:19:56,506 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 22:19:56,509 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 22:19:56,513 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 22:19:56,514 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-properties/simple_built_from_end.i [2019-11-16 22:19:56,673 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f4506a77/6db6942e1bfe4c118bf4043a6ef397aa/FLAG4a0648f8f [2019-11-16 22:19:57,997 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 22:19:57,998 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-properties/simple_built_from_end.i [2019-11-16 22:19:58,042 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f4506a77/6db6942e1bfe4c118bf4043a6ef397aa/FLAG4a0648f8f [2019-11-16 22:19:58,079 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f4506a77/6db6942e1bfe4c118bf4043a6ef397aa [2019-11-16 22:19:58,087 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 22:19:58,096 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-16 22:19:58,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 22:19:58,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 22:19:58,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 22:19:58,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:19:58" (1/1) ... [2019-11-16 22:19:58,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4710345a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:19:58, skipping insertion in model container [2019-11-16 22:19:58,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:19:58" (1/1) ... [2019-11-16 22:19:58,140 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 22:19:58,241 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 22:19:59,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 22:19:59,193 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 22:19:59,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 22:19:59,433 INFO L192 MainTranslator]: Completed translation [2019-11-16 22:19:59,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:19:59 WrapperNode [2019-11-16 22:19:59,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 22:19:59,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 22:19:59,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 22:19:59,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 22:19:59,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:19:59" (1/1) ... [2019-11-16 22:19:59,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:19:59" (1/1) ... [2019-11-16 22:19:59,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:19:59" (1/1) ... [2019-11-16 22:19:59,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:19:59" (1/1) ... [2019-11-16 22:19:59,560 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:19:59" (1/1) ... [2019-11-16 22:19:59,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:19:59" (1/1) ... [2019-11-16 22:19:59,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:19:59" (1/1) ... [2019-11-16 22:19:59,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 22:19:59,623 INFO L168 Benchmark]: Toolchain (without parser) took 1514.58 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 978.2 MB in the end (delta: -16.6 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-16 22:19:59,624 INFO L168 Benchmark]: CDTParser took 0.27 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 22:19:59,627 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1338.40 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 978.2 MB in the end (delta: -16.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-16 22:19:59,631 INFO L168 Benchmark]: Boogie Preprocessor took 162.23 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-16 22:19:59,636 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 1338.40 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 978.2 MB in the end (delta: -16.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 162.23 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 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...