./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 509859d6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/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 0.1.24-509859d [2019-11-27 17:46:40,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 17:46:40,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 17:46:40,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 17:46:40,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 17:46:40,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 17:46:40,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 17:46:40,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 17:46:40,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 17:46:40,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 17:46:40,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 17:46:40,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 17:46:40,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 17:46:40,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 17:46:40,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 17:46:40,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 17:46:40,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 17:46:40,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 17:46:40,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 17:46:40,170 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 17:46:40,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 17:46:40,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 17:46:40,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 17:46:40,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 17:46:40,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 17:46:40,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 17:46:40,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 17:46:40,207 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 17:46:40,208 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 17:46:40,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 17:46:40,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 17:46:40,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 17:46:40,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 17:46:40,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 17:46:40,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 17:46:40,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 17:46:40,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 17:46:40,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 17:46:40,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 17:46:40,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 17:46:40,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 17:46:40,235 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2019-11-27 17:46:40,274 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 17:46:40,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 17:46:40,281 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 17:46:40,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 17:46:40,283 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 17:46:40,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 17:46:40,285 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-27 17:46:40,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 17:46:40,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 17:46:40,288 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-27 17:46:40,290 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-27 17:46:40,290 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-27 17:46:40,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 17:46:40,291 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-27 17:46:40,291 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 17:46:40,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 17:46:40,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 17:46:40,295 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 17:46:40,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 17:46:40,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 17:46:40,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 17:46:40,297 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 17:46:40,297 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 17:46:40,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 17:46:40,299 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 17:46:40,916 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 17:46:40,951 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 17:46:40,960 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 17:46:40,963 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 17:46:40,965 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 17:46:40,969 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/NestedRecursion_1b.c [2019-11-27 17:46:41,129 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f68545da/f69c3cea56e0410ba37049dd73ba2be0/FLAG3340e6546 [2019-11-27 17:46:42,116 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 17:46:42,119 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/NestedRecursion_1b.c [2019-11-27 17:46:42,138 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f68545da/f69c3cea56e0410ba37049dd73ba2be0/FLAG3340e6546 [2019-11-27 17:46:42,175 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f68545da/f69c3cea56e0410ba37049dd73ba2be0 [2019-11-27 17:46:42,182 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 17:46:42,190 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-27 17:46:42,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 17:46:42,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 17:46:42,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 17:46:42,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 05:46:42" (1/1) ... [2019-11-27 17:46:42,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@726f098d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:42, skipping insertion in model container [2019-11-27 17:46:42,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 05:46:42" (1/1) ... [2019-11-27 17:46:42,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 17:46:42,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 17:46:42,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 17:46:42,605 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 17:46:42,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 17:46:42,661 INFO L208 MainTranslator]: Completed translation [2019-11-27 17:46:42,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:42 WrapperNode [2019-11-27 17:46:42,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 17:46:42,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 17:46:42,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 17:46:42,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 17:46:42,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:42" (1/1) ... [2019-11-27 17:46:42,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:42" (1/1) ... [2019-11-27 17:46:42,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:42" (1/1) ... [2019-11-27 17:46:42,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:42" (1/1) ... [2019-11-27 17:46:42,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:42" (1/1) ... [2019-11-27 17:46:42,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:42" (1/1) ... [2019-11-27 17:46:42,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:42" (1/1) ... [2019-11-27 17:46:42,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 17:46:42,811 INFO L168 Benchmark]: Toolchain (without parser) took 617.78 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 967.4 MB in the beginning and 991.2 MB in the end (delta: -23.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 12.5 GB. [2019-11-27 17:46:42,814 INFO L168 Benchmark]: CDTParser took 0.48 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 17:46:42,818 INFO L168 Benchmark]: CACSL2BoogieTranslator took 471.51 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 17:46:42,820 INFO L168 Benchmark]: Boogie Preprocessor took 139.58 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 991.2 MB in the end (delta: -35.3 MB). Peak memory consumption was 9.2 MB. Max. memory is 12.5 GB. [2019-11-27 17:46:42,831 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 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 471.51 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 139.58 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 991.2 MB in the end (delta: -35.3 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 0.1.24-509859d [2019-11-27 17:46:46,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 17:46:46,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 17:46:46,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 17:46:46,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 17:46:46,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 17:46:46,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 17:46:46,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 17:46:46,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 17:46:46,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 17:46:46,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 17:46:46,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 17:46:46,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 17:46:46,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 17:46:46,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 17:46:46,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 17:46:46,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 17:46:46,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 17:46:46,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 17:46:46,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 17:46:46,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 17:46:46,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 17:46:46,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 17:46:46,902 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 17:46:46,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 17:46:46,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 17:46:46,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 17:46:46,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 17:46:46,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 17:46:46,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 17:46:46,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 17:46:46,920 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 17:46:46,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 17:46:46,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 17:46:46,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 17:46:46,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 17:46:46,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 17:46:46,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 17:46:46,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 17:46:46,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 17:46:46,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 17:46:46,941 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-27 17:46:46,980 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 17:46:46,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 17:46:46,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 17:46:46,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 17:46:46,986 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 17:46:46,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 17:46:46,987 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-27 17:46:46,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 17:46:46,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 17:46:46,989 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-27 17:46:46,991 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-27 17:46:46,994 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-27 17:46:46,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 17:46:46,995 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-27 17:46:46,995 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 17:46:46,995 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 17:46:46,996 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 17:46:46,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 17:46:46,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 17:46:46,998 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 17:46:46,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 17:46:46,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 17:46:46,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 17:46:47,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 17:46:47,001 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 17:46:47,001 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 17:46:47,002 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 17:46:47,004 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 17:46:47,640 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 17:46:47,676 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 17:46:47,684 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 17:46:47,688 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 17:46:47,689 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 17:46:47,690 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/NestedRecursion_1b.c [2019-11-27 17:46:47,856 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85b473bec/97f01cefb84a4e3986a757a50d989939/FLAG4ca0fac84 [2019-11-27 17:46:48,896 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 17:46:48,899 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/NestedRecursion_1b.c [2019-11-27 17:46:48,917 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85b473bec/97f01cefb84a4e3986a757a50d989939/FLAG4ca0fac84 [2019-11-27 17:46:48,954 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85b473bec/97f01cefb84a4e3986a757a50d989939 [2019-11-27 17:46:48,964 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 17:46:48,967 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-27 17:46:48,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 17:46:48,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 17:46:48,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 17:46:48,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 05:46:48" (1/1) ... [2019-11-27 17:46:48,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d624a82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:48, skipping insertion in model container [2019-11-27 17:46:48,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 05:46:48" (1/1) ... [2019-11-27 17:46:49,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 17:46:49,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 17:46:49,445 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 17:46:49,454 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 17:46:49,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 17:46:49,528 INFO L208 MainTranslator]: Completed translation [2019-11-27 17:46:49,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:49 WrapperNode [2019-11-27 17:46:49,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 17:46:49,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 17:46:49,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 17:46:49,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 17:46:49,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:49" (1/1) ... [2019-11-27 17:46:49,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:49" (1/1) ... [2019-11-27 17:46:49,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:49" (1/1) ... [2019-11-27 17:46:49,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:49" (1/1) ... [2019-11-27 17:46:49,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:49" (1/1) ... [2019-11-27 17:46:49,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:49" (1/1) ... [2019-11-27 17:46:49,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:46:49" (1/1) ... [2019-11-27 17:46:49,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 17:46:49,698 INFO L168 Benchmark]: Toolchain (without parser) took 728.54 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: -35.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 12.5 GB. [2019-11-27 17:46:49,703 INFO L168 Benchmark]: CDTParser took 2.15 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 17:46:49,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 557.27 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 17:46:49,710 INFO L168 Benchmark]: Boogie Preprocessor took 160.76 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 950.2 MB in the beginning and 997.0 MB in the end (delta: -46.7 MB). Peak memory consumption was 9.2 MB. Max. memory is 12.5 GB. [2019-11-27 17:46:49,718 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.15 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 557.27 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 160.76 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 950.2 MB in the beginning and 997.0 MB in the end (delta: -46.7 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...