./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/openbsd_cstrncat-alloca-2.i --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/array-memsafety/openbsd_cstrncat-alloca-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 bea41ba7ef8afa8e6ccd1150cee95a00bf0377da ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:18:43,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 22:18:43,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 22:18:43,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 22:18:43,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 22:18:43,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 22:18:43,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 22:18:43,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 22:18:43,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 22:18:43,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 22:18:43,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 22:18:43,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 22:18:43,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 22:18:43,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 22:18:43,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 22:18:43,117 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 22:18:43,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 22:18:43,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 22:18:43,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 22:18:43,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 22:18:43,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 22:18:43,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 22:18:43,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 22:18:43,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 22:18:43,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 22:18:43,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 22:18:43,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 22:18:43,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 22:18:43,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 22:18:43,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 22:18:43,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 22:18:43,177 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 22:18:43,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 22:18:43,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 22:18:43,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 22:18:43,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 22:18:43,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 22:18:43,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 22:18:43,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 22:18:43,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 22:18:43,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 22:18:43,197 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-16 22:18:43,235 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 22:18:43,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 22:18:43,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 22:18:43,241 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 22:18:43,241 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 22:18:43,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 22:18:43,242 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 22:18:43,245 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-16 22:18:43,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 22:18:43,245 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 22:18:43,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 22:18:43,247 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-16 22:18:43,247 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-16 22:18:43,248 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-16 22:18:43,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 22:18:43,248 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 22:18:43,250 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 22:18:43,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 22:18:43,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 22:18:43,251 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 22:18:43,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 22:18:43,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 22:18:43,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 22:18:43,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 22:18:43,254 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 22:18:43,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 22:18:43,254 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 -> bea41ba7ef8afa8e6ccd1150cee95a00bf0377da [2019-11-16 22:18:43,765 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 22:18:43,792 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 22:18:43,805 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 22:18:43,807 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 22:18:43,808 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 22:18:43,809 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/openbsd_cstrncat-alloca-2.i [2019-11-16 22:18:43,980 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ca9cd73e/bf80ff2ffeba413abf53423ed1c36e59/FLAGe64881373 [2019-11-16 22:18:45,141 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 22:18:45,145 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cstrncat-alloca-2.i [2019-11-16 22:18:45,182 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ca9cd73e/bf80ff2ffeba413abf53423ed1c36e59/FLAGe64881373 [2019-11-16 22:18:45,218 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ca9cd73e/bf80ff2ffeba413abf53423ed1c36e59 [2019-11-16 22:18:45,227 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 22:18:45,233 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-16 22:18:45,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 22:18:45,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 22:18:45,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 22:18:45,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:18:45" (1/1) ... [2019-11-16 22:18:45,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd9e4ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:18:45, skipping insertion in model container [2019-11-16 22:18:45,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:18:45" (1/1) ... [2019-11-16 22:18:45,274 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 22:18:45,371 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 22:18:46,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 22:18:46,312 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 22:18:46,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 22:18:46,574 INFO L192 MainTranslator]: Completed translation [2019-11-16 22:18:46,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:18:46 WrapperNode [2019-11-16 22:18:46,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 22:18:46,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 22:18:46,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 22:18:46,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 22:18:46,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:18:46" (1/1) ... [2019-11-16 22:18:46,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:18:46" (1/1) ... [2019-11-16 22:18:46,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:18:46" (1/1) ... [2019-11-16 22:18:46,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:18:46" (1/1) ... [2019-11-16 22:18:46,700 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:18:46" (1/1) ... [2019-11-16 22:18:46,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:18:46" (1/1) ... [2019-11-16 22:18:46,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:18:46" (1/1) ... [2019-11-16 22:18:46,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 22:18:46,743 INFO L168 Benchmark]: Toolchain (without parser) took 1507.65 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 973.9 MB in the end (delta: -12.3 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-16 22:18:46,744 INFO L168 Benchmark]: CDTParser took 1.86 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. [2019-11-16 22:18:46,757 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1341.09 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: -12.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-16 22:18:46,758 INFO L168 Benchmark]: Boogie Preprocessor took 161.69 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. [2019-11-16 22:18:46,763 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.86 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 1341.09 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: -12.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 161.69 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...