./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety-ext/skiplist_2lvl.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 65d6cd23 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/memsafety-ext/skiplist_2lvl.i -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 8891100700cfdaa5891399ddd63f93f16d07482f ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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/memsafety-ext/skiplist_2lvl.i -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 8891100700cfdaa5891399ddd63f93f16d07482f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-65d6cd2 [2019-11-26 00:25:51,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 00:25:51,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 00:25:51,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 00:25:51,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 00:25:51,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 00:25:51,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 00:25:51,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 00:25:51,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 00:25:51,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 00:25:51,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 00:25:51,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 00:25:51,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 00:25:51,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 00:25:51,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 00:25:51,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 00:25:51,726 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 00:25:51,730 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 00:25:51,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 00:25:51,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 00:25:51,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 00:25:51,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 00:25:51,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 00:25:51,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 00:25:51,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 00:25:51,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 00:25:51,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 00:25:51,760 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 00:25:51,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 00:25:51,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 00:25:51,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 00:25:51,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 00:25:51,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 00:25:51,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 00:25:51,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 00:25:51,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 00:25:51,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 00:25:51,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 00:25:51,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 00:25:51,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 00:25:51,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 00:25:51,778 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-26 00:25:51,809 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 00:25:51,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 00:25:51,813 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 00:25:51,814 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 00:25:51,814 INFO L138 SettingsManager]: * Use SBE=true [2019-11-26 00:25:51,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 00:25:51,815 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 00:25:51,817 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 00:25:51,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 00:25:51,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 00:25:51,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 00:25:51,819 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-26 00:25:51,819 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-26 00:25:51,819 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-26 00:25:51,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 00:25:51,820 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 00:25:51,823 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 00:25:51,823 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 00:25:51,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 00:25:51,823 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 00:25:51,824 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 00:25:51,824 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 00:25:51,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 00:25:51,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 00:25:51,825 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 00:25:51,825 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-26 00:25:51,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 00:25:51,825 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 -> 8891100700cfdaa5891399ddd63f93f16d07482f [2019-11-26 00:25:52,290 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 00:25:52,309 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 00:25:52,312 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 00:25:52,315 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 00:25:52,317 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 00:25:52,318 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext/skiplist_2lvl.i [2019-11-26 00:25:52,420 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/406adc09a/c2e874922170419093ab8ad156b6234b/FLAGa2408257e [2019-11-26 00:25:53,260 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 00:25:53,262 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext/skiplist_2lvl.i [2019-11-26 00:25:53,288 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/406adc09a/c2e874922170419093ab8ad156b6234b/FLAGa2408257e [2019-11-26 00:25:53,439 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/406adc09a/c2e874922170419093ab8ad156b6234b [2019-11-26 00:25:53,445 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 00:25:53,452 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-26 00:25:53,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 00:25:53,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 00:25:53,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 00:25:53,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:25:53" (1/1) ... [2019-11-26 00:25:53,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a0a35f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:53, skipping insertion in model container [2019-11-26 00:25:53,469 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:25:53" (1/1) ... [2019-11-26 00:25:53,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 00:25:53,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-26 00:25:54,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 00:25:54,225 INFO L203 MainTranslator]: Completed pre-run [2019-11-26 00:25:54,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 00:25:54,410 INFO L208 MainTranslator]: Completed translation [2019-11-26 00:25:54,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:54 WrapperNode [2019-11-26 00:25:54,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 00:25:54,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 00:25:54,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 00:25:54,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 00:25:54,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:54" (1/1) ... [2019-11-26 00:25:54,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:54" (1/1) ... [2019-11-26 00:25:54,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:54" (1/1) ... [2019-11-26 00:25:54,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:54" (1/1) ... [2019-11-26 00:25:54,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:54" (1/1) ... [2019-11-26 00:25:54,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:54" (1/1) ... [2019-11-26 00:25:54,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:54" (1/1) ... [2019-11-26 00:25:54,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 00:25:54,561 INFO L168 Benchmark]: Toolchain (without parser) took 1110.15 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 978.2 MB in the end (delta: -10.8 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-26 00:25:54,567 INFO L168 Benchmark]: CDTParser took 2.34 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. [2019-11-26 00:25:54,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 959.82 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 978.2 MB in the end (delta: -10.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. [2019-11-26 00:25:54,572 INFO L168 Benchmark]: Boogie Preprocessor took 142.04 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-26 00:25:54,576 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.34 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 959.82 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 978.2 MB in the end (delta: -10.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 142.04 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. 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 0.1.24-65d6cd2 [2019-11-26 00:25:57,272 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 00:25:57,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 00:25:57,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 00:25:57,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 00:25:57,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 00:25:57,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 00:25:57,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 00:25:57,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 00:25:57,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 00:25:57,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 00:25:57,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 00:25:57,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 00:25:57,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 00:25:57,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 00:25:57,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 00:25:57,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 00:25:57,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 00:25:57,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 00:25:57,355 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 00:25:57,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 00:25:57,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 00:25:57,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 00:25:57,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 00:25:57,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 00:25:57,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 00:25:57,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 00:25:57,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 00:25:57,383 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 00:25:57,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 00:25:57,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 00:25:57,386 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 00:25:57,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 00:25:57,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 00:25:57,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 00:25:57,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 00:25:57,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 00:25:57,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 00:25:57,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 00:25:57,396 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 00:25:57,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 00:25:57,400 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-26 00:25:57,430 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 00:25:57,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 00:25:57,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 00:25:57,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 00:25:57,436 INFO L138 SettingsManager]: * Use SBE=true [2019-11-26 00:25:57,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 00:25:57,438 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 00:25:57,438 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 00:25:57,438 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 00:25:57,438 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 00:25:57,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 00:25:57,441 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-26 00:25:57,441 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-26 00:25:57,441 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-26 00:25:57,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 00:25:57,442 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 00:25:57,442 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 00:25:57,442 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 00:25:57,444 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 00:25:57,444 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 00:25:57,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 00:25:57,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 00:25:57,445 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 00:25:57,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 00:25:57,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 00:25:57,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 00:25:57,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 00:25:57,446 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-26 00:25:57,449 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 00:25:57,449 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 00:25:57,450 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 -> 8891100700cfdaa5891399ddd63f93f16d07482f [2019-11-26 00:25:57,849 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 00:25:57,866 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 00:25:57,872 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 00:25:57,873 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 00:25:57,874 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 00:25:57,875 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext/skiplist_2lvl.i [2019-11-26 00:25:57,974 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ba549319/183f6a602bc04673894d73ae42c071ff/FLAGf273b92c3 [2019-11-26 00:25:58,782 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 00:25:58,783 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext/skiplist_2lvl.i [2019-11-26 00:25:58,809 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ba549319/183f6a602bc04673894d73ae42c071ff/FLAGf273b92c3 [2019-11-26 00:25:58,999 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ba549319/183f6a602bc04673894d73ae42c071ff [2019-11-26 00:25:59,004 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 00:25:59,007 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-26 00:25:59,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 00:25:59,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 00:25:59,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 00:25:59,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:25:59" (1/1) ... [2019-11-26 00:25:59,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7324d471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:59, skipping insertion in model container [2019-11-26 00:25:59,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:25:59" (1/1) ... [2019-11-26 00:25:59,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 00:25:59,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-26 00:25:59,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 00:25:59,793 INFO L203 MainTranslator]: Completed pre-run [2019-11-26 00:25:59,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 00:25:59,987 INFO L208 MainTranslator]: Completed translation [2019-11-26 00:25:59,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:59 WrapperNode [2019-11-26 00:25:59,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 00:25:59,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 00:25:59,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 00:25:59,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 00:26:00,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:59" (1/1) ... [2019-11-26 00:26:00,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:59" (1/1) ... [2019-11-26 00:26:00,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:59" (1/1) ... [2019-11-26 00:26:00,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:59" (1/1) ... [2019-11-26 00:26:00,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:59" (1/1) ... [2019-11-26 00:26:00,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:59" (1/1) ... [2019-11-26 00:26:00,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:59" (1/1) ... [2019-11-26 00:26:00,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 00:26:00,146 INFO L168 Benchmark]: Toolchain (without parser) took 1136.94 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 972.4 MB in the end (delta: -5.0 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-26 00:26:00,149 INFO L168 Benchmark]: CDTParser took 0.88 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. [2019-11-26 00:26:00,154 INFO L168 Benchmark]: CACSL2BoogieTranslator took 977.39 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 978.1 MB in the end (delta: -10.7 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. [2019-11-26 00:26:00,157 INFO L168 Benchmark]: Boogie Preprocessor took 146.53 ms. Allocated memory is still 1.0 GB. Free memory was 978.1 MB in the beginning and 972.4 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-26 00:26:00,166 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88 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 977.39 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 978.1 MB in the end (delta: -10.7 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 146.53 ms. Allocated memory is still 1.0 GB. Free memory was 978.1 MB in the beginning and 972.4 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...