./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 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/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 0.1.24-509859d [2019-11-27 17:43:39,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 17:43:39,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 17:43:39,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 17:43:39,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 17:43:39,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 17:43:39,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 17:43:39,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 17:43:39,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 17:43:39,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 17:43:39,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 17:43:39,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 17:43:39,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 17:43:39,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 17:43:39,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 17:43:39,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 17:43:39,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 17:43:39,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 17:43:39,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 17:43:39,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 17:43:39,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 17:43:39,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 17:43:39,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 17:43:39,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 17:43:39,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 17:43:39,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 17:43:39,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 17:43:39,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 17:43:39,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 17:43:39,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 17:43:39,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 17:43:39,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 17:43:39,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 17:43:39,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 17:43:39,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 17:43:39,899 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 17:43:39,900 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 17:43:39,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 17:43:39,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 17:43:39,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 17:43:39,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 17:43:39,905 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-27 17:43:39,933 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 17:43:39,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 17:43:39,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 17:43:39,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 17:43:39,938 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 17:43:39,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 17:43:39,939 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 17:43:39,939 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-27 17:43:39,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 17:43:39,941 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 17:43:39,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 17:43:39,942 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-27 17:43:39,942 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-27 17:43:39,943 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-27 17:43:39,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 17:43:39,944 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-27 17:43:39,944 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 17:43:39,944 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 17:43:39,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 17:43:39,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 17:43:39,947 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 17:43:39,947 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 17:43:39,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 17:43:39,947 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 17:43:39,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 17:43:39,948 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 17:43:39,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 17:43:39,948 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 17:43:40,432 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 17:43:40,450 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 17:43:40,453 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 17:43:40,457 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 17:43:40,459 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 17:43:40,460 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext/skiplist_2lvl.i [2019-11-27 17:43:40,564 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d2320021/6fbd64804c7149b0b7fa89747ba51dc7/FLAG8303bfa69 [2019-11-27 17:43:41,389 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 17:43:41,392 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext/skiplist_2lvl.i [2019-11-27 17:43:41,417 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d2320021/6fbd64804c7149b0b7fa89747ba51dc7/FLAG8303bfa69 [2019-11-27 17:43:41,617 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d2320021/6fbd64804c7149b0b7fa89747ba51dc7 [2019-11-27 17:43:41,623 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 17:43:41,626 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-27 17:43:41,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 17:43:41,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 17:43:41,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 17:43:41,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 05:43:41" (1/1) ... [2019-11-27 17:43:41,634 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 05:43:41, skipping insertion in model container [2019-11-27 17:43:41,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 05:43:41" (1/1) ... [2019-11-27 17:43:41,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 17:43:41,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 17:43:42,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 17:43:42,349 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 17:43:42,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 17:43:42,528 INFO L208 MainTranslator]: Completed translation [2019-11-27 17:43:42,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:42 WrapperNode [2019-11-27 17:43:42,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 17:43:42,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 17:43:42,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 17:43:42,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 17:43:42,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:42" (1/1) ... [2019-11-27 17:43:42,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:42" (1/1) ... [2019-11-27 17:43:42,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:42" (1/1) ... [2019-11-27 17:43:42,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:42" (1/1) ... [2019-11-27 17:43:42,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:42" (1/1) ... [2019-11-27 17:43:42,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:42" (1/1) ... [2019-11-27 17:43:42,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:42" (1/1) ... [2019-11-27 17:43:42,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 17:43:42,668 INFO L168 Benchmark]: Toolchain (without parser) took 1038.07 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 979.6 MB in the end (delta: -18.0 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 17:43:42,669 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 17:43:42,680 INFO L168 Benchmark]: CACSL2BoogieTranslator took 902.92 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 979.6 MB in the end (delta: -18.0 MB). Peak memory consumption was 22.2 MB. Max. memory is 12.5 GB. [2019-11-27 17:43:42,681 INFO L168 Benchmark]: Boogie Preprocessor took 130.34 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 17:43:42,686 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 902.92 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 979.6 MB in the end (delta: -18.0 MB). Peak memory consumption was 22.2 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 130.34 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 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 0.1.24-509859d [2019-11-27 17:43:45,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 17:43:45,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 17:43:45,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 17:43:45,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 17:43:45,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 17:43:45,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 17:43:45,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 17:43:45,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 17:43:45,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 17:43:45,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 17:43:45,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 17:43:45,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 17:43:45,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 17:43:45,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 17:43:45,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 17:43:45,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 17:43:45,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 17:43:45,420 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 17:43:45,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 17:43:45,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 17:43:45,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 17:43:45,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 17:43:45,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 17:43:45,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 17:43:45,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 17:43:45,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 17:43:45,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 17:43:45,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 17:43:45,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 17:43:45,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 17:43:45,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 17:43:45,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 17:43:45,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 17:43:45,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 17:43:45,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 17:43:45,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 17:43:45,469 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 17:43:45,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 17:43:45,470 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 17:43:45,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 17:43:45,475 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-27 17:43:45,501 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 17:43:45,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 17:43:45,506 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 17:43:45,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 17:43:45,506 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 17:43:45,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 17:43:45,509 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 17:43:45,509 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-27 17:43:45,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 17:43:45,509 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 17:43:45,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 17:43:45,510 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-27 17:43:45,511 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-27 17:43:45,511 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-27 17:43:45,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 17:43:45,514 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-27 17:43:45,514 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 17:43:45,514 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 17:43:45,514 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 17:43:45,515 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 17:43:45,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 17:43:45,515 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 17:43:45,515 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 17:43:45,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 17:43:45,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 17:43:45,516 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 17:43:45,516 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 17:43:45,516 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 17:43:45,519 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 17:43:45,519 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 17:43:45,520 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 17:43:45,876 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 17:43:45,892 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 17:43:45,898 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 17:43:45,899 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 17:43:45,902 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 17:43:45,903 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext/skiplist_2lvl.i [2019-11-27 17:43:46,008 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee5285945/81f77dfa38da4cb7b3d57cf4254a2659/FLAGbaddbd8b0 [2019-11-27 17:43:46,814 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 17:43:46,815 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext/skiplist_2lvl.i [2019-11-27 17:43:46,837 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee5285945/81f77dfa38da4cb7b3d57cf4254a2659/FLAGbaddbd8b0 [2019-11-27 17:43:47,029 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee5285945/81f77dfa38da4cb7b3d57cf4254a2659 [2019-11-27 17:43:47,039 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 17:43:47,042 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-27 17:43:47,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 17:43:47,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 17:43:47,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 17:43:47,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 05:43:47" (1/1) ... [2019-11-27 17:43:47,061 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 05:43:47, skipping insertion in model container [2019-11-27 17:43:47,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 05:43:47" (1/1) ... [2019-11-27 17:43:47,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 17:43:47,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 17:43:47,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 17:43:47,842 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 17:43:47,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 17:43:48,027 INFO L208 MainTranslator]: Completed translation [2019-11-27 17:43:48,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:48 WrapperNode [2019-11-27 17:43:48,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 17:43:48,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 17:43:48,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 17:43:48,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 17:43:48,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:48" (1/1) ... [2019-11-27 17:43:48,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:48" (1/1) ... [2019-11-27 17:43:48,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:48" (1/1) ... [2019-11-27 17:43:48,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:48" (1/1) ... [2019-11-27 17:43:48,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:48" (1/1) ... [2019-11-27 17:43:48,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:48" (1/1) ... [2019-11-27 17:43:48,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:48" (1/1) ... [2019-11-27 17:43:48,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 17:43:48,183 INFO L168 Benchmark]: Toolchain (without parser) took 1140.31 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 968.1 MB in the end (delta: -7.9 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 17:43:48,183 INFO L168 Benchmark]: CDTParser took 0.25 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 17:43:48,185 INFO L168 Benchmark]: CACSL2BoogieTranslator took 986.92 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 973.9 MB in the end (delta: -13.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. [2019-11-27 17:43:48,188 INFO L168 Benchmark]: Boogie Preprocessor took 147.29 ms. Allocated memory is still 1.0 GB. Free memory was 973.9 MB in the beginning and 968.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 17:43:48,192 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 986.92 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 973.9 MB in the end (delta: -13.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 147.29 ms. Allocated memory is still 1.0 GB. Free memory was 973.9 MB in the beginning and 968.1 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...