./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/termination-crafted/NestedRecursion_1b.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_1b.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 cb528549fa76ae8087cf7043645dfa20323a0116 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_1b.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 cb528549fa76ae8087cf7043645dfa20323a0116 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:24:13,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 11:24:13,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 11:24:13,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 11:24:13,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 11:24:13,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 11:24:13,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 11:24:13,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 11:24:13,444 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 11:24:13,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 11:24:13,450 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 11:24:13,454 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 11:24:13,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 11:24:13,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 11:24:13,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 11:24:13,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 11:24:13,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 11:24:13,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 11:24:13,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 11:24:13,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 11:24:13,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 11:24:13,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 11:24:13,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 11:24:13,491 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 11:24:13,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 11:24:13,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 11:24:13,498 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 11:24:13,503 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 11:24:13,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 11:24:13,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 11:24:13,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 11:24:13,506 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 11:24:13,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 11:24:13,510 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 11:24:13,512 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 11:24:13,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 11:24:13,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 11:24:13,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 11:24:13,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 11:24:13,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 11:24:13,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 11:24:13,521 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2019-11-27 11:24:13,551 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 11:24:13,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 11:24:13,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 11:24:13,555 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 11:24:13,555 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 11:24:13,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 11:24:13,555 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-27 11:24:13,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 11:24:13,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 11:24:13,557 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-27 11:24:13,558 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-27 11:24:13,558 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-27 11:24:13,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 11:24:13,560 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-27 11:24:13,560 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 11:24:13,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 11:24:13,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 11:24:13,561 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 11:24:13,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 11:24:13,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 11:24:13,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 11:24:13,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 11:24:13,563 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 11:24:13,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 11:24:13,563 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 -> cb528549fa76ae8087cf7043645dfa20323a0116 [2019-11-27 11:24:14,016 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 11:24:14,045 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 11:24:14,051 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 11:24:14,054 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 11:24:14,056 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 11:24:14,059 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/NestedRecursion_1b.c [2019-11-27 11:24:14,164 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc3fa0250/3de4ca24c33742adb6594e81acbc2054/FLAG1826170fc [2019-11-27 11:24:14,873 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 11:24:14,876 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/NestedRecursion_1b.c [2019-11-27 11:24:14,889 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc3fa0250/3de4ca24c33742adb6594e81acbc2054/FLAG1826170fc [2019-11-27 11:24:15,197 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc3fa0250/3de4ca24c33742adb6594e81acbc2054 [2019-11-27 11:24:15,204 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 11:24:15,206 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-27 11:24:15,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 11:24:15,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 11:24:15,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 11:24:15,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:24:15" (1/1) ... [2019-11-27 11:24:15,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b733779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:15, skipping insertion in model container [2019-11-27 11:24:15,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:24:15" (1/1) ... [2019-11-27 11:24:15,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 11:24:15,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 11:24:15,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 11:24:15,563 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 11:24:15,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 11:24:15,592 INFO L208 MainTranslator]: Completed translation [2019-11-27 11:24:15,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:15 WrapperNode [2019-11-27 11:24:15,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 11:24:15,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 11:24:15,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 11:24:15,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 11:24:15,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:15" (1/1) ... [2019-11-27 11:24:15,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:15" (1/1) ... [2019-11-27 11:24:15,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:15" (1/1) ... [2019-11-27 11:24:15,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:15" (1/1) ... [2019-11-27 11:24:15,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:15" (1/1) ... [2019-11-27 11:24:15,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:15" (1/1) ... [2019-11-27 11:24:15,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:15" (1/1) ... [2019-11-27 11:24:15,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 11:24:15,703 INFO L168 Benchmark]: Toolchain (without parser) took 485.76 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.3 MB in the beginning and 991.2 MB in the end (delta: -31.0 MB). Peak memory consumption was 20.6 MB. Max. memory is 12.5 GB. [2019-11-27 11:24:15,707 INFO L168 Benchmark]: CDTParser took 0.38 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 11:24:15,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.74 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-27 11:24:15,710 INFO L168 Benchmark]: Boogie Preprocessor took 95.29 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 948.8 MB in the beginning and 991.2 MB in the end (delta: -42.4 MB). Peak memory consumption was 9.2 MB. Max. memory is 12.5 GB. [2019-11-27 11:24:15,720 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 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 374.74 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 95.29 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 948.8 MB in the beginning and 991.2 MB in the end (delta: -42.4 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... ### Bit-precise run ### This is Ultimate 0.1.24-da95e15 [2019-11-27 11:24:18,650 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 11:24:18,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 11:24:18,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 11:24:18,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 11:24:18,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 11:24:18,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 11:24:18,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 11:24:18,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 11:24:18,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 11:24:18,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 11:24:18,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 11:24:18,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 11:24:18,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 11:24:18,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 11:24:18,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 11:24:18,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 11:24:18,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 11:24:18,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 11:24:18,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 11:24:18,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 11:24:18,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 11:24:18,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 11:24:18,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 11:24:18,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 11:24:18,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 11:24:18,760 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 11:24:18,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 11:24:18,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 11:24:18,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 11:24:18,765 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 11:24:18,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 11:24:18,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 11:24:18,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 11:24:18,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 11:24:18,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 11:24:18,775 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 11:24:18,775 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 11:24:18,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 11:24:18,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 11:24:18,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 11:24:18,780 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-27 11:24:18,807 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 11:24:18,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 11:24:18,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 11:24:18,814 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 11:24:18,814 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 11:24:18,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 11:24:18,815 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-27 11:24:18,815 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 11:24:18,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 11:24:18,815 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-27 11:24:18,816 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-27 11:24:18,816 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-27 11:24:18,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 11:24:18,817 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-27 11:24:18,817 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 11:24:18,817 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 11:24:18,818 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 11:24:18,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 11:24:18,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 11:24:18,819 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 11:24:18,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 11:24:18,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 11:24:18,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 11:24:18,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 11:24:18,821 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 11:24:18,821 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 11:24:18,822 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 11:24:18,824 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 -> cb528549fa76ae8087cf7043645dfa20323a0116 [2019-11-27 11:24:19,209 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 11:24:19,228 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 11:24:19,230 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 11:24:19,235 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 11:24:19,236 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 11:24:19,236 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/NestedRecursion_1b.c [2019-11-27 11:24:19,346 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b1165944/a0acfc1a06fd4db180dcba257191870f/FLAG05006f578 [2019-11-27 11:24:20,048 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 11:24:20,053 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/NestedRecursion_1b.c [2019-11-27 11:24:20,066 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b1165944/a0acfc1a06fd4db180dcba257191870f/FLAG05006f578 [2019-11-27 11:24:20,368 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b1165944/a0acfc1a06fd4db180dcba257191870f [2019-11-27 11:24:20,372 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 11:24:20,375 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-27 11:24:20,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 11:24:20,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 11:24:20,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 11:24:20,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:24:20" (1/1) ... [2019-11-27 11:24:20,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5421ec35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:20, skipping insertion in model container [2019-11-27 11:24:20,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:24:20" (1/1) ... [2019-11-27 11:24:20,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 11:24:20,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 11:24:20,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 11:24:20,719 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 11:24:20,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 11:24:20,748 INFO L208 MainTranslator]: Completed translation [2019-11-27 11:24:20,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:20 WrapperNode [2019-11-27 11:24:20,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 11:24:20,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 11:24:20,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 11:24:20,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 11:24:20,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:20" (1/1) ... [2019-11-27 11:24:20,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:20" (1/1) ... [2019-11-27 11:24:20,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:20" (1/1) ... [2019-11-27 11:24:20,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:20" (1/1) ... [2019-11-27 11:24:20,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:20" (1/1) ... [2019-11-27 11:24:20,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:20" (1/1) ... [2019-11-27 11:24:20,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:24:20" (1/1) ... [2019-11-27 11:24:20,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 11:24:20,858 INFO L168 Benchmark]: Toolchain (without parser) took 480.83 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 997.1 MB in the end (delta: -35.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 12.5 GB. [2019-11-27 11:24:20,860 INFO L168 Benchmark]: CDTParser took 2.62 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 11:24:20,861 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.12 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 11:24:20,862 INFO L168 Benchmark]: Boogie Preprocessor took 101.26 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 997.1 MB in the end (delta: -46.8 MB). Peak memory consumption was 9.1 MB. Max. memory is 12.5 GB. [2019-11-27 11:24:20,867 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.62 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 370.12 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 101.26 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 997.1 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...