./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/list-ext2-properties/simple_and_skiplist_2lvl-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/AutomizerReach.xml -i ../sv-benchmarks/c/list-ext2-properties/simple_and_skiplist_2lvl-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6a10fd260c2f708e346588150444ddfe9656de05 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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/AutomizerReach.xml -i ../sv-benchmarks/c/list-ext2-properties/simple_and_skiplist_2lvl-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6a10fd260c2f708e346588150444ddfe9656de05 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-65d6cd2 [2019-11-25 22:54:48,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 22:54:48,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 22:54:48,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 22:54:48,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 22:54:48,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 22:54:48,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 22:54:48,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 22:54:48,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 22:54:48,623 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 22:54:48,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 22:54:48,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 22:54:48,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 22:54:48,633 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 22:54:48,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 22:54:48,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 22:54:48,640 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 22:54:48,641 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 22:54:48,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 22:54:48,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 22:54:48,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 22:54:48,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 22:54:48,666 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 22:54:48,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 22:54:48,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 22:54:48,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 22:54:48,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 22:54:48,675 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 22:54:48,676 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 22:54:48,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 22:54:48,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 22:54:48,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 22:54:48,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 22:54:48,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 22:54:48,684 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 22:54:48,684 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 22:54:48,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 22:54:48,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 22:54:48,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 22:54:48,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 22:54:48,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 22:54:48,692 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 22:54:48,718 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 22:54:48,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 22:54:48,723 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 22:54:48,723 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 22:54:48,724 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 22:54:48,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 22:54:48,726 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 22:54:48,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 22:54:48,726 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 22:54:48,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 22:54:48,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 22:54:48,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 22:54:48,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 22:54:48,731 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 22:54:48,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 22:54:48,732 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 22:54:48,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 22:54:48,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 22:54:48,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 22:54:48,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 22:54:48,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 22:54:48,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 22:54:48,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 22:54:48,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 22:54:48,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 22:54:48,734 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 22:54:48,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 22:54:48,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 22:54:48,735 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 ! call(__VERIFIER_error())) ) 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 -> 6a10fd260c2f708e346588150444ddfe9656de05 [2019-11-25 22:54:49,155 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 22:54:49,171 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 22:54:49,176 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 22:54:49,180 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 22:54:49,181 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 22:54:49,185 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext2-properties/simple_and_skiplist_2lvl-1.i [2019-11-25 22:54:49,288 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ced625dfb/14671d7189a64aa4ace70ef458283dea/FLAGd5685dc0a [2019-11-25 22:54:50,106 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 22:54:50,108 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext2-properties/simple_and_skiplist_2lvl-1.i [2019-11-25 22:54:50,133 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ced625dfb/14671d7189a64aa4ace70ef458283dea/FLAGd5685dc0a [2019-11-25 22:54:50,316 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ced625dfb/14671d7189a64aa4ace70ef458283dea [2019-11-25 22:54:50,322 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 22:54:50,326 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-25 22:54:50,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 22:54:50,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 22:54:50,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 22:54:50,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:54:50" (1/1) ... [2019-11-25 22:54:50,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62efd43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:54:50, skipping insertion in model container [2019-11-25 22:54:50,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:54:50" (1/1) ... [2019-11-25 22:54:50,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 22:54:50,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-25 22:54:51,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 22:54:51,138 INFO L203 MainTranslator]: Completed pre-run [2019-11-25 22:54:51,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 22:54:51,317 INFO L208 MainTranslator]: Completed translation [2019-11-25 22:54:51,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:54:51 WrapperNode [2019-11-25 22:54:51,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 22:54:51,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 22:54:51,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 22:54:51,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 22:54:51,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:54:51" (1/1) ... [2019-11-25 22:54:51,367 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:54:51" (1/1) ... [2019-11-25 22:54:51,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 22:54:51,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 22:54:51,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 22:54:51,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 22:54:51,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:54:51" (1/1) ... [2019-11-25 22:54:51,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:54:51" (1/1) ... [2019-11-25 22:54:51,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:54:51" (1/1) ... [2019-11-25 22:54:51,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:54:51" (1/1) ... [2019-11-25 22:54:51,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:54:51" (1/1) ... [2019-11-25 22:54:51,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:54:51" (1/1) ... [2019-11-25 22:54:51,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:54:51" (1/1) ... [2019-11-25 22:54:51,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 22:54:51,497 INFO L168 Benchmark]: Toolchain (without parser) took 1169.17 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 974.1 MB in the end (delta: -12.4 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-25 22:54:51,510 INFO L168 Benchmark]: CDTParser took 0.30 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. [2019-11-25 22:54:51,511 INFO L168 Benchmark]: CACSL2BoogieTranslator took 989.10 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 979.9 MB in the end (delta: -18.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 12.5 GB. [2019-11-25 22:54:51,513 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.28 ms. Allocated memory is still 1.0 GB. Free memory was 979.9 MB in the beginning and 974.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-25 22:54:51,514 INFO L168 Benchmark]: Boogie Preprocessor took 79.39 ms. Allocated memory is still 1.0 GB. Free memory is still 974.1 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-25 22:54:51,518 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 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 989.10 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 979.9 MB in the end (delta: -18.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 87.28 ms. Allocated memory is still 1.0 GB. Free memory was 979.9 MB in the beginning and 974.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 79.39 ms. Allocated memory is still 1.0 GB. Free memory is still 974.1 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 [2019-11-25 22:54:54,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 22:54:54,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 22:54:54,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 22:54:54,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 22:54:54,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 22:54:54,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 22:54:54,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 22:54:54,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 22:54:54,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 22:54:54,273 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 22:54:54,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 22:54:54,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 22:54:54,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 22:54:54,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 22:54:54,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 22:54:54,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 22:54:54,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 22:54:54,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 22:54:54,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 22:54:54,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 22:54:54,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 22:54:54,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 22:54:54,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 22:54:54,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 22:54:54,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 22:54:54,325 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 22:54:54,327 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 22:54:54,327 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 22:54:54,328 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 22:54:54,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 22:54:54,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 22:54:54,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 22:54:54,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 22:54:54,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 22:54:54,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 22:54:54,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 22:54:54,341 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 22:54:54,341 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 22:54:54,342 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 22:54:54,343 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 22:54:54,344 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-25 22:54:54,372 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 22:54:54,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 22:54:54,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 22:54:54,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 22:54:54,380 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 22:54:54,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 22:54:54,380 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 22:54:54,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 22:54:54,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 22:54:54,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 22:54:54,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 22:54:54,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 22:54:54,382 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 22:54:54,383 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 22:54:54,383 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 22:54:54,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 22:54:54,383 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 22:54:54,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 22:54:54,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 22:54:54,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 22:54:54,385 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 22:54:54,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 22:54:54,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 22:54:54,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 22:54:54,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 22:54:54,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 22:54:54,388 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 22:54:54,389 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 22:54:54,389 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 22:54:54,389 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 22:54:54,390 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 ! call(__VERIFIER_error())) ) 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 -> 6a10fd260c2f708e346588150444ddfe9656de05 [2019-11-25 22:54:54,785 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 22:54:54,805 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 22:54:54,811 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 22:54:54,815 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 22:54:54,819 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 22:54:54,821 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext2-properties/simple_and_skiplist_2lvl-1.i [2019-11-25 22:54:54,926 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fec3ffc7/425249b774314b1eadf061d7fd2677cf/FLAG3182c9132 [2019-11-25 22:54:55,777 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 22:54:55,780 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext2-properties/simple_and_skiplist_2lvl-1.i [2019-11-25 22:54:55,806 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fec3ffc7/425249b774314b1eadf061d7fd2677cf/FLAG3182c9132 [2019-11-25 22:54:55,982 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fec3ffc7/425249b774314b1eadf061d7fd2677cf [2019-11-25 22:54:55,987 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 22:54:55,989 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-25 22:54:55,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 22:54:55,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 22:54:56,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 22:54:56,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:54:55" (1/1) ... [2019-11-25 22:54:56,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54771fda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:54:56, skipping insertion in model container [2019-11-25 22:54:56,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:54:55" (1/1) ... [2019-11-25 22:54:56,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 22:54:56,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-25 22:54:56,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 22:54:56,808 INFO L203 MainTranslator]: Completed pre-run [2019-11-25 22:54:56,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 22:54:57,023 INFO L208 MainTranslator]: Completed translation [2019-11-25 22:54:57,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:54:57 WrapperNode [2019-11-25 22:54:57,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 22:54:57,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 22:54:57,028 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 22:54:57,028 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 22:54:57,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:54:57" (1/1) ... [2019-11-25 22:54:57,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:54:57" (1/1) ... [2019-11-25 22:54:57,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 22:54:57,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 22:54:57,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 22:54:57,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 22:54:57,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:54:57" (1/1) ... [2019-11-25 22:54:57,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:54:57" (1/1) ... [2019-11-25 22:54:57,167 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:54:57" (1/1) ... [2019-11-25 22:54:57,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:54:57" (1/1) ... [2019-11-25 22:54:57,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:54:57" (1/1) ... [2019-11-25 22:54:57,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:54:57" (1/1) ... [2019-11-25 22:54:57,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:54:57" (1/1) ... [2019-11-25 22:54:57,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 22:54:57,236 INFO L168 Benchmark]: Toolchain (without parser) took 1244.94 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 958.8 MB in the beginning and 974.0 MB in the end (delta: -15.2 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-25 22:54:57,238 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. [2019-11-25 22:54:57,239 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1030.44 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 958.8 MB in the beginning and 979.7 MB in the end (delta: -20.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-25 22:54:57,240 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.72 ms. Allocated memory is still 1.0 GB. Free memory was 979.7 MB in the beginning and 974.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-25 22:54:57,243 INFO L168 Benchmark]: Boogie Preprocessor took 91.36 ms. Allocated memory is still 1.0 GB. Free memory is still 974.0 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-25 22:54:57,255 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 1030.44 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 958.8 MB in the beginning and 979.7 MB in the end (delta: -20.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 113.72 ms. Allocated memory is still 1.0 GB. Free memory was 979.7 MB in the beginning and 974.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 91.36 ms. Allocated memory is still 1.0 GB. Free memory is still 974.0 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...