./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version da95e156 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/list-ext3-properties/dll_nullified-2.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 8a7557f09f8e1fbed7221a578047e51fd09f2dbf ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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-ext3-properties/dll_nullified-2.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 8a7557f09f8e1fbed7221a578047e51fd09f2dbf ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-da95e15 [2019-11-27 11:23:23,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 11:23:23,251 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 11:23:23,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 11:23:23,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 11:23:23,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 11:23:23,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 11:23:23,310 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 11:23:23,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 11:23:23,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 11:23:23,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 11:23:23,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 11:23:23,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 11:23:23,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 11:23:23,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 11:23:23,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 11:23:23,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 11:23:23,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 11:23:23,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 11:23:23,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 11:23:23,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 11:23:23,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 11:23:23,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 11:23:23,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 11:23:23,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 11:23:23,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 11:23:23,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 11:23:23,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 11:23:23,399 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 11:23:23,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 11:23:23,402 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 11:23:23,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 11:23:23,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 11:23:23,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 11:23:23,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 11:23:23,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 11:23:23,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 11:23:23,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 11:23:23,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 11:23:23,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 11:23:23,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 11:23:23,426 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-27 11:23:23,469 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 11:23:23,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 11:23:23,475 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 11:23:23,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 11:23:23,476 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 11:23:23,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 11:23:23,478 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 11:23:23,478 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-27 11:23:23,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 11:23:23,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 11:23:23,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 11:23:23,482 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-27 11:23:23,483 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-27 11:23:23,483 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-27 11:23:23,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 11:23:23,484 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-27 11:23:23,484 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 11:23:23,486 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 11:23:23,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 11:23:23,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 11:23:23,489 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 11:23:23,489 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 11:23:23,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 11:23:23,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 11:23:23,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 11:23:23,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 11:23:23,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 11:23:23,494 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 -> 8a7557f09f8e1fbed7221a578047e51fd09f2dbf [2019-11-27 11:23:24,055 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 11:23:24,087 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 11:23:24,097 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 11:23:24,102 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 11:23:24,103 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 11:23:24,104 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i [2019-11-27 11:23:24,267 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e074bc4a9/18e5b2a7d8da4ba8a89be74f43879933/FLAGa0e7149e1 [2019-11-27 11:23:25,499 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 11:23:25,500 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i [2019-11-27 11:23:25,538 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e074bc4a9/18e5b2a7d8da4ba8a89be74f43879933/FLAGa0e7149e1 [2019-11-27 11:23:25,579 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e074bc4a9/18e5b2a7d8da4ba8a89be74f43879933 [2019-11-27 11:23:25,586 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 11:23:25,592 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-27 11:23:25,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 11:23:25,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 11:23:25,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 11:23:25,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:23:25" (1/1) ... [2019-11-27 11:23:25,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f922809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:25, skipping insertion in model container [2019-11-27 11:23:25,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:23:25" (1/1) ... [2019-11-27 11:23:25,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 11:23:25,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 11:23:26,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 11:23:26,624 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 11:23:26,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 11:23:26,864 INFO L208 MainTranslator]: Completed translation [2019-11-27 11:23:26,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:26 WrapperNode [2019-11-27 11:23:26,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 11:23:26,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 11:23:26,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 11:23:26,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 11:23:26,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:26" (1/1) ... [2019-11-27 11:23:26,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:26" (1/1) ... [2019-11-27 11:23:26,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:26" (1/1) ... [2019-11-27 11:23:26,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:26" (1/1) ... [2019-11-27 11:23:26,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:26" (1/1) ... [2019-11-27 11:23:27,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:26" (1/1) ... [2019-11-27 11:23:27,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:26" (1/1) ... [2019-11-27 11:23:27,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 11:23:27,048 INFO L168 Benchmark]: Toolchain (without parser) took 1455.03 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 973.9 MB in the end (delta: -12.2 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 11:23:27,061 INFO L168 Benchmark]: CDTParser took 0.64 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 11:23:27,063 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1270.27 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 973.9 MB in the end (delta: -12.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-27 11:23:27,067 INFO L168 Benchmark]: Boogie Preprocessor took 172.88 ms. Allocated memory is still 1.0 GB. Free memory is still 973.9 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 11:23:27,077 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 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 1270.27 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 973.9 MB in the end (delta: -12.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 172.88 ms. Allocated memory is still 1.0 GB. Free memory is still 973.9 MB. There was no memory consumed. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-da95e15 [2019-11-27 11:23:31,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 11:23:31,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 11:23:31,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 11:23:31,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 11:23:31,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 11:23:31,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 11:23:31,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 11:23:31,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 11:23:31,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 11:23:31,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 11:23:31,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 11:23:31,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 11:23:31,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 11:23:31,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 11:23:31,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 11:23:31,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 11:23:31,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 11:23:31,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 11:23:31,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 11:23:31,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 11:23:31,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 11:23:31,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 11:23:31,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 11:23:31,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 11:23:31,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 11:23:31,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 11:23:31,244 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 11:23:31,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 11:23:31,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 11:23:31,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 11:23:31,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 11:23:31,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 11:23:31,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 11:23:31,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 11:23:31,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 11:23:31,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 11:23:31,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 11:23:31,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 11:23:31,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 11:23:31,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 11:23:31,273 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-27 11:23:31,314 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 11:23:31,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 11:23:31,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 11:23:31,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 11:23:31,321 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 11:23:31,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 11:23:31,324 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 11:23:31,325 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-27 11:23:31,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 11:23:31,325 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 11:23:31,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 11:23:31,327 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-27 11:23:31,327 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-27 11:23:31,329 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-27 11:23:31,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 11:23:31,330 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-27 11:23:31,330 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 11:23:31,330 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 11:23:31,332 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 11:23:31,332 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 11:23:31,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 11:23:31,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 11:23:31,335 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 11:23:31,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 11:23:31,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 11:23:31,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 11:23:31,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 11:23:31,337 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 11:23:31,338 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 11:23:31,338 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 11:23:31,342 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 -> 8a7557f09f8e1fbed7221a578047e51fd09f2dbf [2019-11-27 11:23:32,000 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 11:23:32,031 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 11:23:32,038 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 11:23:32,044 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 11:23:32,045 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 11:23:32,049 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i [2019-11-27 11:23:32,216 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27674c853/7b93b349b128479aaf5d73d058959f4a/FLAGd291a8c3d [2019-11-27 11:23:33,407 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 11:23:33,408 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i [2019-11-27 11:23:33,435 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27674c853/7b93b349b128479aaf5d73d058959f4a/FLAGd291a8c3d [2019-11-27 11:23:33,455 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27674c853/7b93b349b128479aaf5d73d058959f4a [2019-11-27 11:23:33,460 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 11:23:33,465 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-27 11:23:33,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 11:23:33,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 11:23:33,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 11:23:33,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:23:33" (1/1) ... [2019-11-27 11:23:33,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c493f8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:33, skipping insertion in model container [2019-11-27 11:23:33,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:23:33" (1/1) ... [2019-11-27 11:23:33,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 11:23:33,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 11:23:34,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 11:23:34,588 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 11:23:34,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 11:23:34,896 INFO L208 MainTranslator]: Completed translation [2019-11-27 11:23:34,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:34 WrapperNode [2019-11-27 11:23:34,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 11:23:34,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 11:23:34,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 11:23:34,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 11:23:34,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:34" (1/1) ... [2019-11-27 11:23:34,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:34" (1/1) ... [2019-11-27 11:23:34,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:34" (1/1) ... [2019-11-27 11:23:34,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:34" (1/1) ... [2019-11-27 11:23:35,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:34" (1/1) ... [2019-11-27 11:23:35,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:34" (1/1) ... [2019-11-27 11:23:35,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:23:34" (1/1) ... [2019-11-27 11:23:35,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 11:23:35,104 INFO L168 Benchmark]: Toolchain (without parser) took 1631.79 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 972.5 MB in the end (delta: -10.8 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 11:23:35,105 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 11:23:35,107 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1420.51 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 978.2 MB in the end (delta: -16.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-27 11:23:35,119 INFO L168 Benchmark]: Boogie Preprocessor took 190.77 ms. Allocated memory is still 1.0 GB. Free memory was 978.2 MB in the beginning and 972.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 11:23:35,132 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 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 1420.51 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 978.2 MB in the end (delta: -16.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 190.77 ms. Allocated memory is still 1.0 GB. Free memory was 978.2 MB in the beginning and 972.5 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...