./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/verifythis/elimination_max_rec.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/verifythis/elimination_max_rec.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 17d20a29a9e9cc6560e9aa0daac36f5de29f992c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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/verifythis/elimination_max_rec.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-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 32bit --witnessprinter.graph.data.programhash 17d20a29a9e9cc6560e9aa0daac36f5de29f992c ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 17:43:16,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 17:43:16,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 17:43:16,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 17:43:16,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 17:43:16,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 17:43:16,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 17:43:16,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 17:43:16,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 17:43:16,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 17:43:16,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 17:43:16,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 17:43:16,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 17:43:16,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 17:43:16,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 17:43:16,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 17:43:16,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 17:43:16,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 17:43:16,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 17:43:16,593 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 17:43:16,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 17:43:16,609 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 17:43:16,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 17:43:16,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 17:43:16,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 17:43:16,626 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 17:43:16,626 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 17:43:16,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 17:43:16,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 17:43:16,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 17:43:16,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 17:43:16,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 17:43:16,638 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 17:43:16,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 17:43:16,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 17:43:16,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 17:43:16,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 17:43:16,648 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 17:43:16,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 17:43:16,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 17:43:16,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 17:43:16,656 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-27 17:43:16,694 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 17:43:16,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 17:43:16,700 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 17:43:16,702 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 17:43:16,702 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 17:43:16,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 17:43:16,704 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 17:43:16,704 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-27 17:43:16,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 17:43:16,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 17:43:16,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 17:43:16,709 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-27 17:43:16,709 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-27 17:43:16,710 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-27 17:43:16,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 17:43:16,710 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-27 17:43:16,712 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 17:43:16,712 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 17:43:16,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 17:43:16,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 17:43:16,714 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 17:43:16,714 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 17:43:16,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 17:43:16,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 17:43:16,716 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 17:43:16,716 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 17:43:16,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 17:43:16,719 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17d20a29a9e9cc6560e9aa0daac36f5de29f992c [2019-11-27 17:43:17,281 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 17:43:17,313 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 17:43:17,317 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 17:43:17,321 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 17:43:17,325 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 17:43:17,326 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max_rec.c [2019-11-27 17:43:17,501 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f4a03f29/82d89a015e984d6f81061b261ef1b491/FLAGda5bb2146 [2019-11-27 17:43:18,589 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 17:43:18,592 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max_rec.c [2019-11-27 17:43:18,610 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f4a03f29/82d89a015e984d6f81061b261ef1b491/FLAGda5bb2146 [2019-11-27 17:43:18,651 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f4a03f29/82d89a015e984d6f81061b261ef1b491 [2019-11-27 17:43:18,663 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 17:43:18,665 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-27 17:43:18,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 17:43:18,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 17:43:18,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 17:43:18,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 05:43:18" (1/1) ... [2019-11-27 17:43:18,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@496f2f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:18, skipping insertion in model container [2019-11-27 17:43:18,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 05:43:18" (1/1) ... [2019-11-27 17:43:18,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 17:43:18,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 17:43:19,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 17:43:19,305 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 17:43:19,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 17:43:19,520 INFO L208 MainTranslator]: Completed translation [2019-11-27 17:43:19,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:19 WrapperNode [2019-11-27 17:43:19,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 17:43:19,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 17:43:19,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 17:43:19,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 17:43:19,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:19" (1/1) ... [2019-11-27 17:43:19,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:19" (1/1) ... [2019-11-27 17:43:19,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:19" (1/1) ... [2019-11-27 17:43:19,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:19" (1/1) ... [2019-11-27 17:43:19,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:19" (1/1) ... [2019-11-27 17:43:19,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:19" (1/1) ... [2019-11-27 17:43:19,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:19" (1/1) ... [2019-11-27 17:43:19,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 17:43:19,651 INFO L168 Benchmark]: Toolchain (without parser) took 981.19 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 991.1 MB in the end (delta: -29.4 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 17:43:19,654 INFO L168 Benchmark]: CDTParser took 1.83 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 17:43:19,655 INFO L168 Benchmark]: CACSL2BoogieTranslator took 856.30 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 996.9 MB in the end (delta: -35.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-27 17:43:19,671 INFO L168 Benchmark]: Boogie Preprocessor took 115.65 ms. Allocated memory is still 1.0 GB. Free memory was 996.9 MB in the beginning and 991.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 17:43:19,682 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.83 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 856.30 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 996.9 MB in the end (delta: -35.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 115.65 ms. Allocated memory is still 1.0 GB. Free memory was 996.9 MB in the beginning and 991.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 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 17:43:23,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 17:43:23,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 17:43:23,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 17:43:23,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 17:43:23,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 17:43:23,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 17:43:23,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 17:43:23,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 17:43:23,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 17:43:23,634 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 17:43:23,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 17:43:23,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 17:43:23,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 17:43:23,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 17:43:23,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 17:43:23,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 17:43:23,658 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 17:43:23,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 17:43:23,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 17:43:23,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 17:43:23,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 17:43:23,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 17:43:23,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 17:43:23,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 17:43:23,701 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 17:43:23,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 17:43:23,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 17:43:23,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 17:43:23,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 17:43:23,711 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 17:43:23,712 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 17:43:23,713 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 17:43:23,716 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 17:43:23,720 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 17:43:23,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 17:43:23,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 17:43:23,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 17:43:23,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 17:43:23,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 17:43:23,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 17:43:23,731 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-27 17:43:23,785 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 17:43:23,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 17:43:23,795 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 17:43:23,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 17:43:23,801 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 17:43:23,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 17:43:23,802 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 17:43:23,802 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-27 17:43:23,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 17:43:23,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 17:43:23,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 17:43:23,803 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-27 17:43:23,806 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-27 17:43:23,808 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-27 17:43:23,809 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 17:43:23,809 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-27 17:43:23,809 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 17:43:23,809 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 17:43:23,812 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 17:43:23,812 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 17:43:23,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 17:43:23,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 17:43:23,813 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 17:43:23,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 17:43:23,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 17:43:23,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 17:43:23,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 17:43:23,816 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 17:43:23,819 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 17:43:23,819 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 17:43:23,820 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17d20a29a9e9cc6560e9aa0daac36f5de29f992c [2019-11-27 17:43:24,400 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 17:43:24,446 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 17:43:24,454 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 17:43:24,462 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 17:43:24,465 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 17:43:24,467 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max_rec.c [2019-11-27 17:43:24,629 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90960d34d/0c4a2d48a1c1471b9bc702d4e26dc71a/FLAGb9f944d2a [2019-11-27 17:43:25,734 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 17:43:25,736 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max_rec.c [2019-11-27 17:43:25,751 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90960d34d/0c4a2d48a1c1471b9bc702d4e26dc71a/FLAGb9f944d2a [2019-11-27 17:43:25,797 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90960d34d/0c4a2d48a1c1471b9bc702d4e26dc71a [2019-11-27 17:43:25,807 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 17:43:25,813 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-27 17:43:25,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 17:43:25,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 17:43:25,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 17:43:25,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 05:43:25" (1/1) ... [2019-11-27 17:43:25,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@496f2f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:25, skipping insertion in model container [2019-11-27 17:43:25,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 05:43:25" (1/1) ... [2019-11-27 17:43:25,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 17:43:25,910 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 17:43:26,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 17:43:26,440 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 17:43:26,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 17:43:26,667 INFO L208 MainTranslator]: Completed translation [2019-11-27 17:43:26,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:26 WrapperNode [2019-11-27 17:43:26,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 17:43:26,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 17:43:26,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 17:43:26,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 17:43:26,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:26" (1/1) ... [2019-11-27 17:43:26,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:26" (1/1) ... [2019-11-27 17:43:26,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:26" (1/1) ... [2019-11-27 17:43:26,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:26" (1/1) ... [2019-11-27 17:43:26,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:26" (1/1) ... [2019-11-27 17:43:26,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:26" (1/1) ... [2019-11-27 17:43:26,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:26" (1/1) ... [2019-11-27 17:43:26,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 17:43:26,814 INFO L168 Benchmark]: Toolchain (without parser) took 998.90 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 991.0 MB in the end (delta: -29.3 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 17:43:26,815 INFO L168 Benchmark]: CDTParser took 0.45 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 17:43:26,818 INFO L168 Benchmark]: CACSL2BoogieTranslator took 853.81 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 996.8 MB in the end (delta: -35.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. [2019-11-27 17:43:26,823 INFO L168 Benchmark]: Boogie Preprocessor took 137.15 ms. Allocated memory is still 1.0 GB. Free memory was 996.8 MB in the beginning and 991.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 17:43:26,844 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 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 853.81 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 996.8 MB in the end (delta: -35.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 137.15 ms. Allocated memory is still 1.0 GB. Free memory was 996.8 MB in the beginning and 991.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...