./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/verifythis/elimination_max.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 32f26835 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.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 2e9d0e89ee237165e6cd15cb730148b321ca31eb ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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.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 2e9d0e89ee237165e6cd15cb730148b321ca31eb ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-32f2683 [2019-11-24 22:21:00,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 22:21:00,637 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 22:21:00,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 22:21:00,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 22:21:00,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 22:21:00,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 22:21:00,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 22:21:00,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 22:21:00,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 22:21:00,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 22:21:00,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 22:21:00,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 22:21:00,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 22:21:00,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 22:21:00,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 22:21:00,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 22:21:00,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 22:21:00,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 22:21:00,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 22:21:00,767 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 22:21:00,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 22:21:00,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 22:21:00,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 22:21:00,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 22:21:00,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 22:21:00,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 22:21:00,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 22:21:00,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 22:21:00,797 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 22:21:00,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 22:21:00,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 22:21:00,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 22:21:00,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 22:21:00,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 22:21:00,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 22:21:00,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 22:21:00,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 22:21:00,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 22:21:00,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 22:21:00,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 22:21:00,825 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-24 22:21:00,866 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 22:21:00,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 22:21:00,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-24 22:21:00,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-24 22:21:00,876 INFO L138 SettingsManager]: * Use SBE=true [2019-11-24 22:21:00,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 22:21:00,877 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 22:21:00,877 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-24 22:21:00,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 22:21:00,878 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 22:21:00,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 22:21:00,881 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-24 22:21:00,881 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-24 22:21:00,882 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-24 22:21:00,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 22:21:00,884 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-24 22:21:00,884 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 22:21:00,884 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-24 22:21:00,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 22:21:00,885 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-24 22:21:00,887 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 22:21:00,887 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 22:21:00,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 22:21:00,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 22:21:00,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 22:21:00,889 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-24 22:21:00,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 22:21:00,892 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 -> 2e9d0e89ee237165e6cd15cb730148b321ca31eb [2019-11-24 22:21:01,515 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 22:21:01,546 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 22:21:01,555 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 22:21:01,560 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 22:21:01,561 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 22:21:01,562 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max.c [2019-11-24 22:21:01,726 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d518ccf20/c392eaec4a6e431588a3cfe0f0a03873/FLAG9e811359a [2019-11-24 22:21:02,856 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 22:21:02,858 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max.c [2019-11-24 22:21:02,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d518ccf20/c392eaec4a6e431588a3cfe0f0a03873/FLAG9e811359a [2019-11-24 22:21:02,919 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d518ccf20/c392eaec4a6e431588a3cfe0f0a03873 [2019-11-24 22:21:02,927 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 22:21:02,933 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-24 22:21:02,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 22:21:02,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 22:21:02,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 22:21:02,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:21:02" (1/1) ... [2019-11-24 22:21:02,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50044e83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:21:02, skipping insertion in model container [2019-11-24 22:21:02,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:21:02" (1/1) ... [2019-11-24 22:21:02,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 22:21:03,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 22:21:03,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 22:21:03,555 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 22:21:03,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 22:21:03,771 INFO L208 MainTranslator]: Completed translation [2019-11-24 22:21:03,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:21:03 WrapperNode [2019-11-24 22:21:03,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 22:21:03,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 22:21:03,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 22:21:03,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 22:21:03,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:21:03" (1/1) ... [2019-11-24 22:21:03,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:21:03" (1/1) ... [2019-11-24 22:21:03,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:21:03" (1/1) ... [2019-11-24 22:21:03,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:21:03" (1/1) ... [2019-11-24 22:21:03,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:21:03" (1/1) ... [2019-11-24 22:21:03,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:21:03" (1/1) ... [2019-11-24 22:21:03,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:21:03" (1/1) ... [2019-11-24 22:21:03,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 22:21:03,928 INFO L168 Benchmark]: Toolchain (without parser) took 991.38 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. [2019-11-24 22:21:03,931 INFO L168 Benchmark]: CDTParser took 0.66 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. [2019-11-24 22:21:03,943 INFO L168 Benchmark]: CACSL2BoogieTranslator took 841.36 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. [2019-11-24 22:21:03,944 INFO L168 Benchmark]: Boogie Preprocessor took 140.24 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. [2019-11-24 22:21:03,956 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66 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 841.36 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 140.24 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 0.1.24-32f2683 [2019-11-24 22:21:07,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 22:21:07,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 22:21:07,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 22:21:07,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 22:21:07,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 22:21:07,958 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 22:21:07,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 22:21:07,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 22:21:07,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 22:21:07,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 22:21:07,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 22:21:07,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 22:21:08,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 22:21:08,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 22:21:08,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 22:21:08,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 22:21:08,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 22:21:08,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 22:21:08,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 22:21:08,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 22:21:08,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 22:21:08,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 22:21:08,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 22:21:08,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 22:21:08,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 22:21:08,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 22:21:08,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 22:21:08,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 22:21:08,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 22:21:08,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 22:21:08,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 22:21:08,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 22:21:08,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 22:21:08,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 22:21:08,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 22:21:08,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 22:21:08,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 22:21:08,090 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 22:21:08,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 22:21:08,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 22:21:08,097 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-24 22:21:08,142 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 22:21:08,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 22:21:08,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-24 22:21:08,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-24 22:21:08,152 INFO L138 SettingsManager]: * Use SBE=true [2019-11-24 22:21:08,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 22:21:08,152 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 22:21:08,153 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-24 22:21:08,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 22:21:08,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 22:21:08,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 22:21:08,159 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-24 22:21:08,159 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-24 22:21:08,160 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-24 22:21:08,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 22:21:08,161 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-24 22:21:08,161 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-24 22:21:08,161 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-24 22:21:08,161 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 22:21:08,162 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-24 22:21:08,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 22:21:08,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-24 22:21:08,164 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 22:21:08,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 22:21:08,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 22:21:08,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 22:21:08,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 22:21:08,166 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-24 22:21:08,167 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-24 22:21:08,170 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 22:21:08,172 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 -> 2e9d0e89ee237165e6cd15cb730148b321ca31eb [2019-11-24 22:21:08,784 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 22:21:08,816 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 22:21:08,825 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 22:21:08,829 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 22:21:08,832 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 22:21:08,834 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max.c [2019-11-24 22:21:09,002 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b628992c9/1e069de3ba4b4f7ab346d24fc95e86eb/FLAG232d0d60e [2019-11-24 22:21:10,120 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 22:21:10,123 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max.c [2019-11-24 22:21:10,141 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b628992c9/1e069de3ba4b4f7ab346d24fc95e86eb/FLAG232d0d60e [2019-11-24 22:21:10,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b628992c9/1e069de3ba4b4f7ab346d24fc95e86eb [2019-11-24 22:21:10,193 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 22:21:10,195 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-24 22:21:10,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 22:21:10,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 22:21:10,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 22:21:10,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:21:10" (1/1) ... [2019-11-24 22:21:10,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66deb805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:21:10, skipping insertion in model container [2019-11-24 22:21:10,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:21:10" (1/1) ... [2019-11-24 22:21:10,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 22:21:10,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 22:21:10,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 22:21:10,829 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 22:21:10,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 22:21:11,051 INFO L208 MainTranslator]: Completed translation [2019-11-24 22:21:11,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:21:11 WrapperNode [2019-11-24 22:21:11,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 22:21:11,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 22:21:11,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 22:21:11,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 22:21:11,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:21:11" (1/1) ... [2019-11-24 22:21:11,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:21:11" (1/1) ... [2019-11-24 22:21:11,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:21:11" (1/1) ... [2019-11-24 22:21:11,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:21:11" (1/1) ... [2019-11-24 22:21:11,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:21:11" (1/1) ... [2019-11-24 22:21:11,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:21:11" (1/1) ... [2019-11-24 22:21:11,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:21:11" (1/1) ... [2019-11-24 22:21:11,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 22:21:11,208 INFO L168 Benchmark]: Toolchain (without parser) took 1005.74 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 991.2 MB in the end (delta: -29.5 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-24 22:21:11,210 INFO L168 Benchmark]: CDTParser took 4.64 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. [2019-11-24 22:21:11,216 INFO L168 Benchmark]: CACSL2BoogieTranslator took 853.71 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. [2019-11-24 22:21:11,217 INFO L168 Benchmark]: Boogie Preprocessor took 138.86 ms. Allocated memory is still 1.0 GB. Free memory was 996.9 MB in the beginning and 991.2 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-24 22:21:11,239 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 4.64 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 853.71 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 138.86 ms. Allocated memory is still 1.0 GB. Free memory was 996.9 MB in the beginning and 991.2 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...