./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety-ext3/derefAfterFree1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c6eb4584 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/memsafety-ext3/derefAfterFree1.c -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 d452f938d74713dbff7e0330f8ef393409d67ffe ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-c6eb458-m [2019-11-16 22:20:25,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 22:20:25,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 22:20:25,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 22:20:25,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 22:20:25,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 22:20:25,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 22:20:25,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 22:20:25,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 22:20:25,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 22:20:25,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 22:20:25,342 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 22:20:25,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 22:20:25,350 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 22:20:25,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 22:20:25,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 22:20:25,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 22:20:25,363 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 22:20:25,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 22:20:25,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 22:20:25,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 22:20:25,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 22:20:25,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 22:20:25,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 22:20:25,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 22:20:25,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 22:20:25,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 22:20:25,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 22:20:25,412 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 22:20:25,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 22:20:25,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 22:20:25,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 22:20:25,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 22:20:25,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 22:20:25,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 22:20:25,426 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 22:20:25,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 22:20:25,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 22:20:25,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 22:20:25,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 22:20:25,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 22:20:25,436 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-16 22:20:25,477 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 22:20:25,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 22:20:25,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 22:20:25,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 22:20:25,484 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 22:20:25,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 22:20:25,485 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 22:20:25,488 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-16 22:20:25,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 22:20:25,488 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 22:20:25,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 22:20:25,490 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-16 22:20:25,491 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-16 22:20:25,491 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-16 22:20:25,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 22:20:25,493 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 22:20:25,493 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 22:20:25,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 22:20:25,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 22:20:25,496 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 22:20:25,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 22:20:25,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 22:20:25,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 22:20:25,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 22:20:25,498 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 22:20:25,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 22:20:25,501 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 -> d452f938d74713dbff7e0330f8ef393409d67ffe [2019-11-16 22:20:26,111 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 22:20:26,139 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 22:20:26,149 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 22:20:26,152 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 22:20:26,157 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 22:20:26,158 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext3/derefAfterFree1.c [2019-11-16 22:20:26,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39d99cdf7/eaf5b5f0904c4f3f8d21f2f39ee79a85/FLAG67f15a5f9 [2019-11-16 22:20:27,406 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 22:20:27,409 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext3/derefAfterFree1.c [2019-11-16 22:20:27,423 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39d99cdf7/eaf5b5f0904c4f3f8d21f2f39ee79a85/FLAG67f15a5f9 [2019-11-16 22:20:27,465 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39d99cdf7/eaf5b5f0904c4f3f8d21f2f39ee79a85 [2019-11-16 22:20:27,475 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 22:20:27,484 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-16 22:20:27,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 22:20:27,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 22:20:27,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 22:20:27,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:20:27" (1/1) ... [2019-11-16 22:20:27,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17fb84a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:20:27, skipping insertion in model container [2019-11-16 22:20:27,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:20:27" (1/1) ... [2019-11-16 22:20:27,523 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 22:20:27,548 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 22:20:27,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 22:20:27,944 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 22:20:27,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 22:20:27,997 INFO L192 MainTranslator]: Completed translation [2019-11-16 22:20:27,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:20:27 WrapperNode [2019-11-16 22:20:27,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 22:20:27,999 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 22:20:28,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 22:20:28,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 22:20:28,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:20:27" (1/1) ... [2019-11-16 22:20:28,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:20:27" (1/1) ... [2019-11-16 22:20:28,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:20:27" (1/1) ... [2019-11-16 22:20:28,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:20:27" (1/1) ... [2019-11-16 22:20:28,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:20:27" (1/1) ... [2019-11-16 22:20:28,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:20:27" (1/1) ... [2019-11-16 22:20:28,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:20:27" (1/1) ... [2019-11-16 22:20:28,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 22:20:28,175 INFO L168 Benchmark]: Toolchain (without parser) took 688.04 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 967.4 MB in the beginning and 991.2 MB in the end (delta: -23.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. [2019-11-16 22:20:28,182 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 994.6 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-16 22:20:28,186 INFO L168 Benchmark]: CACSL2BoogieTranslator took 512.85 ms. Allocated memory is still 1.0 GB. Free memory was 967.4 MB in the beginning and 955.8 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 12.5 GB. [2019-11-16 22:20:28,188 INFO L168 Benchmark]: Boogie Preprocessor took 165.40 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 955.8 MB in the beginning and 991.2 MB in the end (delta: -35.4 MB). Peak memory consumption was 9.2 MB. Max. memory is 12.5 GB. [2019-11-16 22:20:28,201 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 994.6 MB. There was no memory consumed. Max. memory is 12.5 GB. * CACSL2BoogieTranslator took 512.85 ms. Allocated memory is still 1.0 GB. Free memory was 967.4 MB in the beginning and 955.8 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 165.40 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 955.8 MB in the beginning and 991.2 MB in the end (delta: -35.4 MB). Peak memory consumption was 9.2 MB. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...