./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/termination-crafted/NestedRecursion_2b.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-crafted/NestedRecursion_2b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-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 64bit --witnessprinter.graph.data.programhash 1b7166d94206693c3f254a3c1de8d5825f8510fb ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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/termination-crafted/NestedRecursion_2b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-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 64bit --witnessprinter.graph.data.programhash 1b7166d94206693c3f254a3c1de8d5825f8510fb ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:24:16,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 11:24:16,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 11:24:16,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 11:24:16,460 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 11:24:16,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 11:24:16,479 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 11:24:16,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 11:24:16,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 11:24:16,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 11:24:16,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 11:24:16,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 11:24:16,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 11:24:16,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 11:24:16,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 11:24:16,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 11:24:16,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 11:24:16,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 11:24:16,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 11:24:16,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 11:24:16,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 11:24:16,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 11:24:16,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 11:24:16,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 11:24:16,581 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 11:24:16,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 11:24:16,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 11:24:16,586 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 11:24:16,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 11:24:16,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 11:24:16,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 11:24:16,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 11:24:16,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 11:24:16,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 11:24:16,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 11:24:16,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 11:24:16,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 11:24:16,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 11:24:16,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 11:24:16,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 11:24:16,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 11:24:16,611 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2019-11-27 11:24:16,646 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 11:24:16,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 11:24:16,654 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 11:24:16,654 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 11:24:16,655 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 11:24:16,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 11:24:16,657 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-27 11:24:16,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 11:24:16,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 11:24:16,658 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-27 11:24:16,659 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-27 11:24:16,659 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-27 11:24:16,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 11:24:16,662 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-27 11:24:16,663 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 11:24:16,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 11:24:16,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 11:24:16,664 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 11:24:16,664 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 11:24:16,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 11:24:16,665 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 11:24:16,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 11:24:16,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 11:24:16,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 11:24:16,668 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b7166d94206693c3f254a3c1de8d5825f8510fb [2019-11-27 11:24:17,221 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 11:24:17,237 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 11:24:17,243 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 11:24:17,245 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 11:24:17,248 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 11:24:17,249 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/NestedRecursion_2b.c [2019-11-27 11:24:17,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/328f1c1a2/2d05f1bf991748ba9909747f5f67ba89/FLAG320dda48c [2019-11-27 11:24:18,317 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 11:24:18,318 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/NestedRecursion_2b.c [2019-11-27 11:24:18,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/328f1c1a2/2d05f1bf991748ba9909747f5f67ba89/FLAG320dda48c [2019-11-27 11:24:18,569 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/328f1c1a2/2d05f1bf991748ba9909747f5f67ba89 [2019-11-27 11:24:18,573 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 11:24:18,578 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-27 11:24:18,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 11:24:18,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 11:24:18,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 11:24:18,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:24:18" (1/1) ... [2019-11-27 11:24:18,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fb5a4f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:18, skipping insertion in model container [2019-11-27 11:24:18,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:24:18" (1/1) ... [2019-11-27 11:24:18,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 11:24:18,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 11:24:19,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 11:24:19,020 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 11:24:19,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 11:24:19,061 INFO L208 MainTranslator]: Completed translation [2019-11-27 11:24:19,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:19 WrapperNode [2019-11-27 11:24:19,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 11:24:19,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 11:24:19,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 11:24:19,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 11:24:19,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:19" (1/1) ... [2019-11-27 11:24:19,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:19" (1/1) ... [2019-11-27 11:24:19,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:19" (1/1) ... [2019-11-27 11:24:19,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:19" (1/1) ... [2019-11-27 11:24:19,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:19" (1/1) ... [2019-11-27 11:24:19,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:19" (1/1) ... [2019-11-27 11:24:19,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:19" (1/1) ... [2019-11-27 11:24:19,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 11:24:19,224 INFO L168 Benchmark]: Toolchain (without parser) took 633.92 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 995.6 MB in the end (delta: -28.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 12.5 GB. [2019-11-27 11:24:19,227 INFO L168 Benchmark]: CDTParser took 0.22 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. [2019-11-27 11:24:19,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 475.76 ms. Allocated memory is still 1.0 GB. Free memory was 967.4 MB in the beginning and 956.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-27 11:24:19,236 INFO L168 Benchmark]: Boogie Preprocessor took 142.93 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 956.0 MB in the beginning and 995.6 MB in the end (delta: -39.6 MB). Peak memory consumption was 9.1 MB. Max. memory is 12.5 GB. [2019-11-27 11:24:19,246 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 475.76 ms. Allocated memory is still 1.0 GB. Free memory was 967.4 MB in the beginning and 956.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 142.93 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 956.0 MB in the beginning and 995.6 MB in the end (delta: -39.6 MB). Peak memory consumption was 9.1 MB. 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 11:24:23,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 11:24:23,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 11:24:23,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 11:24:23,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 11:24:23,350 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 11:24:23,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 11:24:23,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 11:24:23,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 11:24:23,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 11:24:23,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 11:24:23,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 11:24:23,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 11:24:23,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 11:24:23,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 11:24:23,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 11:24:23,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 11:24:23,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 11:24:23,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 11:24:23,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 11:24:23,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 11:24:23,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 11:24:23,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 11:24:23,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 11:24:23,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 11:24:23,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 11:24:23,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 11:24:23,455 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 11:24:23,455 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 11:24:23,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 11:24:23,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 11:24:23,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 11:24:23,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 11:24:23,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 11:24:23,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 11:24:23,470 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 11:24:23,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 11:24:23,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 11:24:23,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 11:24:23,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 11:24:23,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 11:24:23,481 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-27 11:24:23,521 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 11:24:23,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 11:24:23,526 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 11:24:23,529 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 11:24:23,529 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 11:24:23,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 11:24:23,532 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-27 11:24:23,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 11:24:23,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 11:24:23,533 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-27 11:24:23,535 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-27 11:24:23,535 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-27 11:24:23,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 11:24:23,537 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-27 11:24:23,538 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 11:24:23,538 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 11:24:23,538 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 11:24:23,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 11:24:23,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 11:24:23,540 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 11:24:23,541 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 11:24:23,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 11:24:23,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 11:24:23,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 11:24:23,544 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 11:24:23,544 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 11:24:23,544 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 11:24:23,545 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b7166d94206693c3f254a3c1de8d5825f8510fb [2019-11-27 11:24:24,160 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 11:24:24,185 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 11:24:24,192 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 11:24:24,198 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 11:24:24,199 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 11:24:24,200 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/NestedRecursion_2b.c [2019-11-27 11:24:24,371 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdee9b6ab/9bc14b423c824a17a1a3e817739254db/FLAG30214e598 [2019-11-27 11:24:25,295 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 11:24:25,300 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/NestedRecursion_2b.c [2019-11-27 11:24:25,317 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdee9b6ab/9bc14b423c824a17a1a3e817739254db/FLAG30214e598 [2019-11-27 11:24:25,464 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdee9b6ab/9bc14b423c824a17a1a3e817739254db [2019-11-27 11:24:25,477 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 11:24:25,481 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-27 11:24:25,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 11:24:25,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 11:24:25,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 11:24:25,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:24:25" (1/1) ... [2019-11-27 11:24:25,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fef7f1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:25, skipping insertion in model container [2019-11-27 11:24:25,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:24:25" (1/1) ... [2019-11-27 11:24:25,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 11:24:25,570 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 11:24:25,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 11:24:25,980 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 11:24:25,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 11:24:26,020 INFO L208 MainTranslator]: Completed translation [2019-11-27 11:24:26,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:26 WrapperNode [2019-11-27 11:24:26,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 11:24:26,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 11:24:26,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 11:24:26,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 11:24:26,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:26" (1/1) ... [2019-11-27 11:24:26,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:26" (1/1) ... [2019-11-27 11:24:26,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:26" (1/1) ... [2019-11-27 11:24:26,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:26" (1/1) ... [2019-11-27 11:24:26,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:26" (1/1) ... [2019-11-27 11:24:26,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:26" (1/1) ... [2019-11-27 11:24:26,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:26" (1/1) ... [2019-11-27 11:24:26,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 11:24:26,181 INFO L168 Benchmark]: Toolchain (without parser) took 697.16 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 997.0 MB in the end (delta: -35.4 MB). Peak memory consumption was 20.6 MB. Max. memory is 12.5 GB. [2019-11-27 11:24:26,185 INFO L168 Benchmark]: CDTParser took 4.18 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 11:24:26,190 INFO L168 Benchmark]: CACSL2BoogieTranslator took 538.46 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-27 11:24:26,196 INFO L168 Benchmark]: Boogie Preprocessor took 149.63 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 950.2 MB in the beginning and 997.0 MB in the end (delta: -46.8 MB). Peak memory consumption was 9.1 MB. Max. memory is 12.5 GB. [2019-11-27 11:24:26,205 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 4.18 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 538.46 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 950.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 149.63 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 950.2 MB in the beginning and 997.0 MB in the end (delta: -46.8 MB). Peak memory consumption was 9.1 MB. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...