./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety-ext/skiplist_3lvl.i --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/memsafety-ext/skiplist_3lvl.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 9befec948c9d6a41102c5095999bc8b92a81fdec ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_3lvl.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 9befec948c9d6a41102c5095999bc8b92a81fdec .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 17:43:40,485 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 17:43:40,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 17:43:40,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 17:43:40,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 17:43:40,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 17:43:40,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 17:43:40,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 17:43:40,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 17:43:40,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 17:43:40,543 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 17:43:40,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 17:43:40,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 17:43:40,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 17:43:40,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 17:43:40,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 17:43:40,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 17:43:40,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 17:43:40,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 17:43:40,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 17:43:40,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 17:43:40,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 17:43:40,581 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 17:43:40,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 17:43:40,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 17:43:40,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 17:43:40,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 17:43:40,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 17:43:40,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 17:43:40,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 17:43:40,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 17:43:40,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 17:43:40,597 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 17:43:40,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 17:43:40,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 17:43:40,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 17:43:40,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 17:43:40,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 17:43:40,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 17:43:40,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 17:43:40,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 17:43:40,617 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-27 17:43:40,651 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 17:43:40,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 17:43:40,654 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 17:43:40,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 17:43:40,659 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 17:43:40,659 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 17:43:40,660 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 17:43:40,660 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-27 17:43:40,660 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 17:43:40,660 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 17:43:40,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 17:43:40,661 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-27 17:43:40,661 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-27 17:43:40,662 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-27 17:43:40,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 17:43:40,664 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-27 17:43:40,664 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 17:43:40,664 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 17:43:40,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 17:43:40,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 17:43:40,665 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 17:43:40,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 17:43:40,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 17:43:40,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 17:43:40,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 17:43:40,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 17:43:40,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 17:43:40,669 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 -> 9befec948c9d6a41102c5095999bc8b92a81fdec [2019-11-27 17:43:41,117 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 17:43:41,134 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 17:43:41,137 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 17:43:41,144 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 17:43:41,144 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 17:43:41,145 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext/skiplist_3lvl.i [2019-11-27 17:43:41,247 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3d758100/0d1743d09ea94d4682738a026b0a4452/FLAG62c34cd17 [2019-11-27 17:43:42,041 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 17:43:42,043 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext/skiplist_3lvl.i [2019-11-27 17:43:42,070 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3d758100/0d1743d09ea94d4682738a026b0a4452/FLAG62c34cd17 [2019-11-27 17:43:42,265 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3d758100/0d1743d09ea94d4682738a026b0a4452 [2019-11-27 17:43:42,268 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 17:43:42,271 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-27 17:43:42,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 17:43:42,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 17:43:42,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 17:43:42,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 05:43:42" (1/1) ... [2019-11-27 17:43:42,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e52e31a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:42, skipping insertion in model container [2019-11-27 17:43:42,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 05:43:42" (1/1) ... [2019-11-27 17:43:42,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 17:43:42,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 17:43:43,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 17:43:43,032 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 17:43:43,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 17:43:43,212 INFO L208 MainTranslator]: Completed translation [2019-11-27 17:43:43,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:43 WrapperNode [2019-11-27 17:43:43,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 17:43:43,215 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 17:43:43,215 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 17:43:43,215 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 17:43:43,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:43" (1/1) ... [2019-11-27 17:43:43,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:43" (1/1) ... [2019-11-27 17:43:43,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:43" (1/1) ... [2019-11-27 17:43:43,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:43" (1/1) ... [2019-11-27 17:43:43,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:43" (1/1) ... [2019-11-27 17:43:43,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:43" (1/1) ... [2019-11-27 17:43:43,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:43" (1/1) ... [2019-11-27 17:43:43,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 17:43:43,357 INFO L168 Benchmark]: Toolchain (without parser) took 1079.96 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 968.3 MB in the end (delta: -6.6 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 17:43:43,369 INFO L168 Benchmark]: CDTParser took 0.40 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 17:43:43,372 INFO L168 Benchmark]: CACSL2BoogieTranslator took 931.11 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 974.0 MB in the end (delta: -12.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-27 17:43:43,374 INFO L168 Benchmark]: Boogie Preprocessor took 132.80 ms. Allocated memory is still 1.0 GB. Free memory was 974.0 MB in the beginning and 968.3 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 17:43:43,382 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 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 931.11 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 974.0 MB in the end (delta: -12.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 132.80 ms. Allocated memory is still 1.0 GB. Free memory was 974.0 MB in the beginning and 968.3 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 17:43:46,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 17:43:46,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 17:43:46,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 17:43:46,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 17:43:46,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 17:43:46,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 17:43:46,160 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 17:43:46,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 17:43:46,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 17:43:46,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 17:43:46,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 17:43:46,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 17:43:46,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 17:43:46,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 17:43:46,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 17:43:46,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 17:43:46,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 17:43:46,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 17:43:46,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 17:43:46,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 17:43:46,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 17:43:46,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 17:43:46,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 17:43:46,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 17:43:46,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 17:43:46,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 17:43:46,221 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 17:43:46,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 17:43:46,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 17:43:46,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 17:43:46,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 17:43:46,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 17:43:46,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 17:43:46,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 17:43:46,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 17:43:46,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 17:43:46,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 17:43:46,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 17:43:46,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 17:43:46,239 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 17:43:46,239 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-27 17:43:46,266 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 17:43:46,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 17:43:46,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 17:43:46,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 17:43:46,272 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 17:43:46,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 17:43:46,273 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 17:43:46,273 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-27 17:43:46,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 17:43:46,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 17:43:46,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 17:43:46,276 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-27 17:43:46,276 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-27 17:43:46,277 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-27 17:43:46,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 17:43:46,277 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-27 17:43:46,278 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 17:43:46,278 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 17:43:46,280 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 17:43:46,280 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 17:43:46,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 17:43:46,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 17:43:46,281 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 17:43:46,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 17:43:46,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 17:43:46,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 17:43:46,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 17:43:46,283 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 17:43:46,283 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 17:43:46,283 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 17:43:46,284 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 -> 9befec948c9d6a41102c5095999bc8b92a81fdec [2019-11-27 17:43:46,734 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 17:43:46,749 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 17:43:46,757 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 17:43:46,758 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 17:43:46,761 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 17:43:46,762 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext/skiplist_3lvl.i [2019-11-27 17:43:46,871 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ebb2d8b5/8aee1c496e4d420aaa28dd16341505c5/FLAG02d570ed3 [2019-11-27 17:43:47,686 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 17:43:47,689 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext/skiplist_3lvl.i [2019-11-27 17:43:47,719 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ebb2d8b5/8aee1c496e4d420aaa28dd16341505c5/FLAG02d570ed3 [2019-11-27 17:43:47,880 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ebb2d8b5/8aee1c496e4d420aaa28dd16341505c5 [2019-11-27 17:43:47,888 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 17:43:47,890 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-27 17:43:47,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 17:43:47,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 17:43:47,906 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 17:43:47,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 05:43:47" (1/1) ... [2019-11-27 17:43:47,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e0a86e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:47, skipping insertion in model container [2019-11-27 17:43:47,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 05:43:47" (1/1) ... [2019-11-27 17:43:47,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 17:43:48,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 17:43:48,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 17:43:48,696 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 17:43:48,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 17:43:48,883 INFO L208 MainTranslator]: Completed translation [2019-11-27 17:43:48,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:48 WrapperNode [2019-11-27 17:43:48,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 17:43:48,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 17:43:48,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 17:43:48,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 17:43:48,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:48" (1/1) ... [2019-11-27 17:43:48,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:48" (1/1) ... [2019-11-27 17:43:48,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:48" (1/1) ... [2019-11-27 17:43:48,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:48" (1/1) ... [2019-11-27 17:43:49,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:48" (1/1) ... [2019-11-27 17:43:49,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:48" (1/1) ... [2019-11-27 17:43:49,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 05:43:48" (1/1) ... [2019-11-27 17:43:49,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 17:43:49,042 INFO L168 Benchmark]: Toolchain (without parser) took 1147.59 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.3 MB in the beginning and 972.4 MB in the end (delta: -12.2 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 17:43:49,042 INFO L168 Benchmark]: CDTParser took 0.33 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 17:43:49,062 INFO L168 Benchmark]: CACSL2BoogieTranslator took 992.03 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.3 MB in the beginning and 978.1 MB in the end (delta: -17.9 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. [2019-11-27 17:43:49,063 INFO L168 Benchmark]: Boogie Preprocessor took 145.11 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. [2019-11-27 17:43:49,067 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 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 992.03 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.3 MB in the beginning and 978.1 MB in the end (delta: -17.9 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 145.11 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...