./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i --full-output --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 47b0bc17 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/sll2c_remove_all_reverse.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 8e9bd4c45107b8bac8caf02aded500b0232909d1 --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-47b0bc1 [2019-11-20 23:47:16,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 23:47:16,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 23:47:16,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 23:47:16,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 23:47:16,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 23:47:16,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 23:47:16,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 23:47:16,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 23:47:16,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 23:47:16,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 23:47:16,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 23:47:16,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 23:47:16,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 23:47:16,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 23:47:16,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 23:47:16,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 23:47:16,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 23:47:16,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 23:47:16,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 23:47:16,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 23:47:16,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 23:47:16,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 23:47:16,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 23:47:16,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 23:47:16,244 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 23:47:16,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 23:47:16,249 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 23:47:16,250 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 23:47:16,251 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 23:47:16,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 23:47:16,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 23:47:16,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 23:47:16,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 23:47:16,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 23:47:16,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 23:47:16,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 23:47:16,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 23:47:16,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 23:47:16,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 23:47:16,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 23:47:16,278 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 23:47:16,316 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 23:47:16,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 23:47:16,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 23:47:16,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 23:47:16,323 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 23:47:16,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 23:47:16,326 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 23:47:16,326 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 23:47:16,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 23:47:16,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 23:47:16,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 23:47:16,331 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 23:47:16,331 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 23:47:16,332 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 23:47:16,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 23:47:16,332 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 23:47:16,333 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 23:47:16,333 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 23:47:16,333 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 23:47:16,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 23:47:16,336 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 23:47:16,336 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 23:47:16,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 23:47:16,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 23:47:16,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 23:47:16,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 23:47:16,339 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 23:47:16,339 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 23:47:16,339 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 23:47:16,341 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 -> 8e9bd4c45107b8bac8caf02aded500b0232909d1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-20 23:47:16,929 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 23:47:16,956 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 23:47:16,963 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 23:47:16,967 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 23:47:16,972 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 23:47:16,973 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i [2019-11-20 23:47:17,129 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d53257032/682edcd65f6e4c49a261e2ad0b2dd683/FLAG796dc8f1c [2019-11-20 23:47:18,341 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 23:47:18,345 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i [2019-11-20 23:47:18,382 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d53257032/682edcd65f6e4c49a261e2ad0b2dd683/FLAG796dc8f1c [2019-11-20 23:47:18,818 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d53257032/682edcd65f6e4c49a261e2ad0b2dd683 [2019-11-20 23:47:18,823 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 23:47:18,825 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-20 23:47:18,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 23:47:18,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 23:47:18,847 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 23:47:18,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:47:18" (1/1) ... [2019-11-20 23:47:18,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d8474bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:18, skipping insertion in model container [2019-11-20 23:47:18,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:47:18" (1/1) ... [2019-11-20 23:47:18,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 23:47:18,976 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-20 23:47:19,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 23:47:19,887 INFO L201 MainTranslator]: Completed pre-run [2019-11-20 23:47:20,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 23:47:20,181 INFO L205 MainTranslator]: Completed translation [2019-11-20 23:47:20,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:20 WrapperNode [2019-11-20 23:47:20,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 23:47:20,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 23:47:20,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 23:47:20,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 23:47:20,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:20" (1/1) ... [2019-11-20 23:47:20,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:20" (1/1) ... [2019-11-20 23:47:20,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:20" (1/1) ... [2019-11-20 23:47:20,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:20" (1/1) ... [2019-11-20 23:47:20,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:20" (1/1) ... [2019-11-20 23:47:20,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:20" (1/1) ... [2019-11-20 23:47:20,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:47:20" (1/1) ... [2019-11-20 23:47:20,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 23:47:20,400 INFO L168 Benchmark]: Toolchain (without parser) took 1563.39 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 968.2 MB in the end (delta: -6.5 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-20 23:47:20,404 INFO L168 Benchmark]: CDTParser took 0.29 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. [2019-11-20 23:47:20,406 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1346.28 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 974.0 MB in the end (delta: -12.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-20 23:47:20,410 INFO L168 Benchmark]: Boogie Preprocessor took 199.81 ms. Allocated memory is still 1.0 GB. Free memory was 974.0 MB in the beginning and 968.2 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-20 23:47:20,426 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 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 1346.28 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 974.0 MB in the end (delta: -12.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 199.81 ms. Allocated memory is still 1.0 GB. Free memory was 974.0 MB in the beginning and 968.2 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...