./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 025d5a27 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 0.1.24-025d5a2 [2019-11-26 17:56:27,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 17:56:27,251 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 17:56:27,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 17:56:27,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 17:56:27,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 17:56:27,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 17:56:27,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 17:56:27,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 17:56:27,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 17:56:27,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 17:56:27,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 17:56:27,312 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 17:56:27,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 17:56:27,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 17:56:27,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 17:56:27,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 17:56:27,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 17:56:27,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 17:56:27,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 17:56:27,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 17:56:27,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 17:56:27,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 17:56:27,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 17:56:27,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 17:56:27,355 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 17:56:27,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 17:56:27,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 17:56:27,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 17:56:27,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 17:56:27,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 17:56:27,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 17:56:27,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 17:56:27,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 17:56:27,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 17:56:27,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 17:56:27,367 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 17:56:27,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 17:56:27,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 17:56:27,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 17:56:27,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 17:56:27,373 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-26 17:56:27,398 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 17:56:27,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 17:56:27,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 17:56:27,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 17:56:27,404 INFO L138 SettingsManager]: * Use SBE=true [2019-11-26 17:56:27,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 17:56:27,407 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 17:56:27,407 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 17:56:27,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 17:56:27,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 17:56:27,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 17:56:27,408 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-26 17:56:27,409 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-26 17:56:27,409 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-26 17:56:27,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 17:56:27,409 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 17:56:27,410 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 17:56:27,412 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 17:56:27,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 17:56:27,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 17:56:27,412 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 17:56:27,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 17:56:27,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 17:56:27,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 17:56:27,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 17:56:27,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-26 17:56:27,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 17:56:27,415 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 [2019-11-26 17:56:27,874 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 17:56:27,892 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 17:56:27,898 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 17:56:27,902 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 17:56:27,902 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 17:56:27,904 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext/skiplist_3lvl.i [2019-11-26 17:56:28,013 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e62cc9b6/fd254086501747ddb307115b5bd862dd/FLAGca3f1f097 [2019-11-26 17:56:28,856 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 17:56:28,857 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext/skiplist_3lvl.i [2019-11-26 17:56:28,883 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e62cc9b6/fd254086501747ddb307115b5bd862dd/FLAGca3f1f097 [2019-11-26 17:56:29,034 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e62cc9b6/fd254086501747ddb307115b5bd862dd [2019-11-26 17:56:29,041 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 17:56:29,043 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-26 17:56:29,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 17:56:29,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 17:56:29,054 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 17:56:29,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 05:56:29" (1/1) ... [2019-11-26 17:56:29,061 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 26.11 05:56:29, skipping insertion in model container [2019-11-26 17:56:29,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 05:56:29" (1/1) ... [2019-11-26 17:56:29,077 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 17:56:29,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-26 17:56:29,434 ERROR L326 MainTranslator]: Unsupported Syntax: Undefined type __fsid_t [2019-11-26 17:56:29,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@16f082f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:29, skipping insertion in model container [2019-11-26 17:56:29,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 17:56:29,438 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-11-26 17:56:29,445 INFO L168 Benchmark]: Toolchain (without parser) took 398.71 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-26 17:56:29,445 INFO L168 Benchmark]: CDTParser took 0.61 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. [2019-11-26 17:56:29,450 INFO L168 Benchmark]: CACSL2BoogieTranslator took 391.04 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-26 17:56:29,452 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 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 391.04 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 130]: Unsupported Syntax Undefined type __fsid_t RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-025d5a2 [2019-11-26 17:56:32,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 17:56:32,109 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 17:56:32,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 17:56:32,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 17:56:32,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 17:56:32,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 17:56:32,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 17:56:32,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 17:56:32,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 17:56:32,163 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 17:56:32,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 17:56:32,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 17:56:32,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 17:56:32,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 17:56:32,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 17:56:32,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 17:56:32,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 17:56:32,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 17:56:32,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 17:56:32,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 17:56:32,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 17:56:32,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 17:56:32,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 17:56:32,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 17:56:32,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 17:56:32,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 17:56:32,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 17:56:32,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 17:56:32,216 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 17:56:32,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 17:56:32,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 17:56:32,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 17:56:32,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 17:56:32,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 17:56:32,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 17:56:32,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 17:56:32,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 17:56:32,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 17:56:32,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 17:56:32,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 17:56:32,230 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-26 17:56:32,257 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 17:56:32,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 17:56:32,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 17:56:32,263 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 17:56:32,263 INFO L138 SettingsManager]: * Use SBE=true [2019-11-26 17:56:32,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 17:56:32,264 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 17:56:32,264 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 17:56:32,264 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 17:56:32,264 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 17:56:32,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 17:56:32,267 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-26 17:56:32,267 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-26 17:56:32,267 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-26 17:56:32,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 17:56:32,268 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 17:56:32,269 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 17:56:32,269 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 17:56:32,269 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 17:56:32,272 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 17:56:32,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 17:56:32,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 17:56:32,272 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 17:56:32,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 17:56:32,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 17:56:32,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 17:56:32,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 17:56:32,274 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-26 17:56:32,274 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 17:56:32,274 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 17:56:32,275 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 [2019-11-26 17:56:32,654 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 17:56:32,669 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 17:56:32,675 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 17:56:32,680 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 17:56:32,681 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 17:56:32,682 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext/skiplist_3lvl.i [2019-11-26 17:56:32,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19eead481/6912e79f541a4a16bfdae698651e2635/FLAG521caa790 [2019-11-26 17:56:33,625 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 17:56:33,626 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext/skiplist_3lvl.i [2019-11-26 17:56:33,650 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19eead481/6912e79f541a4a16bfdae698651e2635/FLAG521caa790 [2019-11-26 17:56:33,829 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19eead481/6912e79f541a4a16bfdae698651e2635 [2019-11-26 17:56:33,837 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 17:56:33,839 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-26 17:56:33,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 17:56:33,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 17:56:33,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 17:56:33,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 05:56:33" (1/1) ... [2019-11-26 17:56:33,857 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 05:56:33, skipping insertion in model container [2019-11-26 17:56:33,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 05:56:33" (1/1) ... [2019-11-26 17:56:33,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 17:56:33,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-26 17:56:34,207 ERROR L326 MainTranslator]: Unsupported Syntax: Undefined type __fsid_t [2019-11-26 17:56:34,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5f10b591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:34, skipping insertion in model container [2019-11-26 17:56:34,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 17:56:34,211 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2019-11-26 17:56:34,217 INFO L168 Benchmark]: Toolchain (without parser) took 374.53 ms. Allocated memory is still 1.0 GB. Free memory was 966.0 MB in the beginning and 954.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-26 17:56:34,218 INFO L168 Benchmark]: CDTParser took 0.23 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 17:56:34,221 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.11 ms. Allocated memory is still 1.0 GB. Free memory was 966.0 MB in the beginning and 954.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-26 17:56:34,223 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 367.11 ms. Allocated memory is still 1.0 GB. Free memory was 966.0 MB in the beginning and 954.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 130]: Unsupported Syntax Undefined type __fsid_t RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...