./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 509859d6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/list-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 0.1.24-509859d [2019-11-27 17:45:49,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 17:45:49,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 17:45:49,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 17:45:49,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 17:45:49,522 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 17:45:49,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 17:45:49,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 17:45:49,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 17:45:49,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 17:45:49,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 17:45:49,564 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 17:45:49,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 17:45:49,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 17:45:49,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 17:45:49,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 17:45:49,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 17:45:49,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 17:45:49,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 17:45:49,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 17:45:49,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 17:45:49,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 17:45:49,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 17:45:49,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 17:45:49,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 17:45:49,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 17:45:49,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 17:45:49,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 17:45:49,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 17:45:49,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 17:45:49,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 17:45:49,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 17:45:49,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 17:45:49,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 17:45:49,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 17:45:49,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 17:45:49,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 17:45:49,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 17:45:49,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 17:45:49,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 17:45:49,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 17:45:49,669 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-27 17:45:49,710 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 17:45:49,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 17:45:49,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 17:45:49,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 17:45:49,719 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 17:45:49,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 17:45:49,719 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 17:45:49,721 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-27 17:45:49,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 17:45:49,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 17:45:49,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 17:45:49,724 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-27 17:45:49,725 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-27 17:45:49,727 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-27 17:45:49,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 17:45:49,728 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-27 17:45:49,728 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 17:45:49,728 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 17:45:49,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 17:45:49,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 17:45:49,732 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 17:45:49,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 17:45:49,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 17:45:49,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 17:45:49,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 17:45:49,734 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 17:45:49,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 17:45:49,734 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 17:45:50,308 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 17:45:50,341 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 17:45:50,349 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 17:45:50,354 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 17:45:50,356 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 17:45:50,357 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i [2019-11-27 17:45:50,535 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd081d157/bfa93548fcde4398a1b89968e3b1791d/FLAG6d94a36d2 [2019-11-27 17:45:51,776 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 17:45:51,781 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i [2019-11-27 17:45:51,818 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd081d157/bfa93548fcde4398a1b89968e3b1791d/FLAG6d94a36d2 [2019-11-27 17:45:51,862 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd081d157/bfa93548fcde4398a1b89968e3b1791d [2019-11-27 17:45:51,875 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 17:45:51,883 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-27 17:45:51,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 17:45:51,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 17:45:51,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 17:45:51,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 05:45:51" (1/1) ... [2019-11-27 17:45:51,912 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 05:45:51, skipping insertion in model container [2019-11-27 17:45:51,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 05:45:51" (1/1) ... [2019-11-27 17:45:51,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 17:45:52,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 17:45:52,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 17:45:52,966 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 17:45:53,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 17:45:53,227 INFO L208 MainTranslator]: Completed translation [2019-11-27 17:45:53,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:53 WrapperNode [2019-11-27 17:45:53,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 17:45:53,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 17:45:53,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 17:45:53,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 17:45:53,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:53" (1/1) ... [2019-11-27 17:45:53,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:53" (1/1) ... [2019-11-27 17:45:53,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:53" (1/1) ... [2019-11-27 17:45:53,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:53" (1/1) ... [2019-11-27 17:45:53,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:53" (1/1) ... [2019-11-27 17:45:53,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:53" (1/1) ... [2019-11-27 17:45:53,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:53" (1/1) ... [2019-11-27 17:45:53,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 17:45:53,436 INFO L168 Benchmark]: Toolchain (without parser) took 1537.57 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 972.6 MB in the end (delta: -10.9 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 17:45:53,440 INFO L168 Benchmark]: CDTParser took 1.99 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 17:45:53,443 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1346.17 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 972.6 MB in the end (delta: -10.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-27 17:45:53,447 INFO L168 Benchmark]: Boogie Preprocessor took 181.89 ms. Allocated memory is still 1.0 GB. Free memory is still 972.6 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 17:45:53,450 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.99 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 1346.17 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 972.6 MB in the end (delta: -10.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 181.89 ms. Allocated memory is still 1.0 GB. Free memory is still 972.6 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 17:45:57,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 17:45:57,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 17:45:57,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 17:45:57,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 17:45:57,444 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 17:45:57,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 17:45:57,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 17:45:57,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 17:45:57,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 17:45:57,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 17:45:57,487 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 17:45:57,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 17:45:57,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 17:45:57,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 17:45:57,503 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 17:45:57,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 17:45:57,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 17:45:57,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 17:45:57,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 17:45:57,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 17:45:57,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 17:45:57,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 17:45:57,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 17:45:57,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 17:45:57,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 17:45:57,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 17:45:57,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 17:45:57,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 17:45:57,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 17:45:57,565 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 17:45:57,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 17:45:57,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 17:45:57,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 17:45:57,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 17:45:57,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 17:45:57,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 17:45:57,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 17:45:57,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 17:45:57,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 17:45:57,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 17:45:57,589 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-27 17:45:57,632 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 17:45:57,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 17:45:57,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 17:45:57,638 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 17:45:57,638 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 17:45:57,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 17:45:57,641 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 17:45:57,642 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-27 17:45:57,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 17:45:57,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 17:45:57,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 17:45:57,644 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-27 17:45:57,644 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-27 17:45:57,646 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-27 17:45:57,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 17:45:57,647 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-27 17:45:57,647 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 17:45:57,649 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 17:45:57,649 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 17:45:57,649 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 17:45:57,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 17:45:57,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 17:45:57,651 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 17:45:57,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 17:45:57,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 17:45:57,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 17:45:57,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 17:45:57,656 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 17:45:57,656 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 17:45:57,657 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 17:45:57,658 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 17:45:58,277 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 17:45:58,310 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 17:45:58,319 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 17:45:58,322 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 17:45:58,325 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 17:45:58,326 INFO L428 ainManager$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 17:45:58,491 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cf0eb7c7/33c86d63fccd46b88d4cdbc309ca23e9/FLAG6fe2a7bcf [2019-11-27 17:45:59,757 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 17:45:59,760 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext3-properties/dll_nullified-2.i [2019-11-27 17:45:59,805 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cf0eb7c7/33c86d63fccd46b88d4cdbc309ca23e9/FLAG6fe2a7bcf [2019-11-27 17:45:59,857 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cf0eb7c7/33c86d63fccd46b88d4cdbc309ca23e9 [2019-11-27 17:45:59,868 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 17:45:59,874 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-27 17:45:59,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 17:45:59,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 17:45:59,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 17:45:59,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 05:45:59" (1/1) ... [2019-11-27 17:45:59,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48f4bb1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:45:59, skipping insertion in model container [2019-11-27 17:45:59,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 05:45:59" (1/1) ... [2019-11-27 17:45:59,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 17:46:00,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 17:46:00,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 17:46:01,010 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 17:46:01,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 17:46:01,254 INFO L208 MainTranslator]: Completed translation [2019-11-27 17:46:01,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:01 WrapperNode [2019-11-27 17:46:01,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 17:46:01,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 17:46:01,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 17:46:01,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 17:46:01,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:01" (1/1) ... [2019-11-27 17:46:01,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:01" (1/1) ... [2019-11-27 17:46:01,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:01" (1/1) ... [2019-11-27 17:46:01,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:01" (1/1) ... [2019-11-27 17:46:01,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:01" (1/1) ... [2019-11-27 17:46:01,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:01" (1/1) ... [2019-11-27 17:46:01,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:01" (1/1) ... [2019-11-27 17:46:01,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 17:46:01,503 INFO L168 Benchmark]: Toolchain (without parser) took 1628.65 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 962.5 MB in the end (delta: -804.8 kB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 17:46:01,507 INFO L168 Benchmark]: CDTParser took 2.47 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 17:46:01,510 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1377.90 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). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-27 17:46:01,512 INFO L168 Benchmark]: Boogie Preprocessor took 238.86 ms. Allocated memory is still 1.0 GB. Free memory was 968.2 MB in the beginning and 962.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 17:46:01,524 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.47 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 1377.90 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). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 238.86 ms. Allocated memory is still 1.0 GB. Free memory was 968.2 MB in the beginning and 962.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...