./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/list-simple/dll2n_prepend_equal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 509859d6 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-simple/dll2n_prepend_equal.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 4aa4ae97046b46e050cb2478dec257c6a324dc09 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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/list-simple/dll2n_prepend_equal.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 4aa4ae97046b46e050cb2478dec257c6a324dc09 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-509859d [2019-11-27 17:45:33,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 17:45:33,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 17:45:33,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 17:45:33,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 17:45:33,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 17:45:33,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 17:45:33,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 17:45:33,282 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 17:45:33,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 17:45:33,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 17:45:33,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 17:45:33,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 17:45:33,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 17:45:33,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 17:45:33,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 17:45:33,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 17:45:33,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 17:45:33,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 17:45:33,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 17:45:33,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 17:45:33,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 17:45:33,327 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 17:45:33,329 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 17:45:33,334 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 17:45:33,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 17:45:33,337 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 17:45:33,338 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 17:45:33,339 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 17:45:33,340 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 17:45:33,340 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 17:45:33,341 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 17:45:33,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 17:45:33,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 17:45:33,348 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 17:45:33,348 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 17:45:33,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 17:45:33,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 17:45:33,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 17:45:33,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 17:45:33,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 17:45:33,355 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-27 17:45:33,385 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 17:45:33,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 17:45:33,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 17:45:33,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 17:45:33,388 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 17:45:33,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 17:45:33,389 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 17:45:33,392 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-27 17:45:33,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 17:45:33,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 17:45:33,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 17:45:33,394 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-27 17:45:33,394 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-27 17:45:33,394 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-27 17:45:33,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 17:45:33,395 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-27 17:45:33,395 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 17:45:33,395 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 17:45:33,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 17:45:33,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 17:45:33,396 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 17:45:33,396 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 17:45:33,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 17:45:33,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 17:45:33,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 17:45:33,400 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 17:45:33,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 17:45:33,400 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 -> 4aa4ae97046b46e050cb2478dec257c6a324dc09 [2019-11-27 17:45:33,837 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 17:45:33,855 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 17:45:33,860 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 17:45:33,865 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 17:45:33,866 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 17:45:33,866 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/dll2n_prepend_equal.i [2019-11-27 17:45:33,971 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc3d03731/6e17590fb01c4d9ba342db4f51b0cbbc/FLAG70b714cd3 [2019-11-27 17:45:34,817 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 17:45:34,819 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2n_prepend_equal.i [2019-11-27 17:45:34,845 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc3d03731/6e17590fb01c4d9ba342db4f51b0cbbc/FLAG70b714cd3 [2019-11-27 17:45:35,019 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc3d03731/6e17590fb01c4d9ba342db4f51b0cbbc [2019-11-27 17:45:35,022 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 17:45:35,025 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-27 17:45:35,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 17:45:35,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 17:45:35,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 17:45:35,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 05:45:35" (1/1) ... [2019-11-27 17:45:35,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a3459d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:35, skipping insertion in model container [2019-11-27 17:45:35,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 05:45:35" (1/1) ... [2019-11-27 17:45:35,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 17:45:35,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 17:45:35,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 17:45:35,786 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 17:45:35,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 17:45:35,973 INFO L208 MainTranslator]: Completed translation [2019-11-27 17:45:35,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:35 WrapperNode [2019-11-27 17:45:35,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 17:45:35,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 17:45:35,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 17:45:35,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 17:45:35,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:35" (1/1) ... [2019-11-27 17:45:35,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:35" (1/1) ... [2019-11-27 17:45:36,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:35" (1/1) ... [2019-11-27 17:45:36,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:35" (1/1) ... [2019-11-27 17:45:36,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:35" (1/1) ... [2019-11-27 17:45:36,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:35" (1/1) ... [2019-11-27 17:45:36,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:35" (1/1) ... [2019-11-27 17:45:36,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 17:45:36,125 INFO L168 Benchmark]: Toolchain (without parser) took 1092.79 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 962.5 MB in the end (delta: -833.6 kB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 17:45:36,126 INFO L168 Benchmark]: CDTParser took 0.48 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 17:45:36,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 943.42 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. [2019-11-27 17:45:36,138 INFO L168 Benchmark]: Boogie Preprocessor took 136.89 ms. Allocated memory is still 1.0 GB. Free memory was 968.3 MB in the beginning and 962.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 17:45:36,146 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 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 943.42 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 136.89 ms. Allocated memory is still 1.0 GB. Free memory was 968.3 MB in the beginning and 962.5 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... ### Bit-precise run ### This is Ultimate 0.1.24-509859d [2019-11-27 17:45:38,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 17:45:38,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 17:45:38,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 17:45:38,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 17:45:38,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 17:45:38,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 17:45:38,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 17:45:38,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 17:45:38,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 17:45:38,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 17:45:38,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 17:45:38,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 17:45:38,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 17:45:38,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 17:45:38,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 17:45:38,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 17:45:38,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 17:45:38,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 17:45:38,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 17:45:38,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 17:45:38,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 17:45:38,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 17:45:38,864 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 17:45:38,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 17:45:38,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 17:45:38,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 17:45:38,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 17:45:38,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 17:45:38,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 17:45:38,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 17:45:38,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 17:45:38,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 17:45:38,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 17:45:38,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 17:45:38,882 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 17:45:38,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 17:45:38,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 17:45:38,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 17:45:38,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 17:45:38,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 17:45:38,889 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-27 17:45:38,916 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 17:45:38,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 17:45:38,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 17:45:38,922 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 17:45:38,922 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 17:45:38,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 17:45:38,922 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 17:45:38,923 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-27 17:45:38,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 17:45:38,926 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 17:45:38,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 17:45:38,927 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-27 17:45:38,927 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-27 17:45:38,928 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-27 17:45:38,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 17:45:38,928 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-27 17:45:38,928 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 17:45:38,928 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 17:45:38,929 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 17:45:38,929 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 17:45:38,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 17:45:38,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 17:45:38,929 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 17:45:38,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 17:45:38,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 17:45:38,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 17:45:38,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 17:45:38,931 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 17:45:38,932 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 17:45:38,933 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 17:45:38,934 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 -> 4aa4ae97046b46e050cb2478dec257c6a324dc09 [2019-11-27 17:45:39,327 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 17:45:39,346 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 17:45:39,349 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 17:45:39,353 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 17:45:39,355 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 17:45:39,356 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/dll2n_prepend_equal.i [2019-11-27 17:45:39,468 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6f8cfce0/8e1e903678c84b7db1cd10106665e996/FLAG0fd894752 [2019-11-27 17:45:40,277 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 17:45:40,280 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2n_prepend_equal.i [2019-11-27 17:45:40,305 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6f8cfce0/8e1e903678c84b7db1cd10106665e996/FLAG0fd894752 [2019-11-27 17:45:40,480 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6f8cfce0/8e1e903678c84b7db1cd10106665e996 [2019-11-27 17:45:40,485 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 17:45:40,488 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-27 17:45:40,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 17:45:40,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 17:45:40,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 17:45:40,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 05:45:40" (1/1) ... [2019-11-27 17:45:40,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e0a86e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:40, skipping insertion in model container [2019-11-27 17:45:40,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 05:45:40" (1/1) ... [2019-11-27 17:45:40,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 17:45:40,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 17:45:41,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 17:45:41,257 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 17:45:41,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 17:45:41,460 INFO L208 MainTranslator]: Completed translation [2019-11-27 17:45:41,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:41 WrapperNode [2019-11-27 17:45:41,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 17:45:41,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 17:45:41,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 17:45:41,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 17:45:41,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:41" (1/1) ... [2019-11-27 17:45:41,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:41" (1/1) ... [2019-11-27 17:45:41,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:41" (1/1) ... [2019-11-27 17:45:41,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:41" (1/1) ... [2019-11-27 17:45:41,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:41" (1/1) ... [2019-11-27 17:45:41,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:41" (1/1) ... [2019-11-27 17:45:41,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:41" (1/1) ... [2019-11-27 17:45:41,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 17:45:41,611 INFO L168 Benchmark]: Toolchain (without parser) took 1121.71 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 967.4 MB in the beginning and 966.8 MB in the end (delta: 652.9 kB). Peak memory consumption was 718.5 kB. Max. memory is 12.5 GB. [2019-11-27 17:45:41,614 INFO L168 Benchmark]: CDTParser took 0.23 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 17:45:41,620 INFO L168 Benchmark]: CACSL2BoogieTranslator took 965.22 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 967.4 MB in the beginning and 972.5 MB in the end (delta: -5.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. [2019-11-27 17:45:41,625 INFO L168 Benchmark]: Boogie Preprocessor took 144.95 ms. Allocated memory is still 1.0 GB. Free memory was 972.5 MB in the beginning and 966.8 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 17:45:41,630 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 965.22 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 967.4 MB in the beginning and 972.5 MB in the end (delta: -5.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 144.95 ms. Allocated memory is still 1.0 GB. Free memory was 972.5 MB in the beginning and 966.8 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...