./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/list-ext2-properties/simple_and_skiplist_2lvl-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/AutomizerReach.xml -i ../sv-benchmarks/c/list-ext2-properties/simple_and_skiplist_2lvl-2.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 b76ecfcab69931c531f8f47556627be2c19ef8db ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-2.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 b76ecfcab69931c531f8f47556627be2c19ef8db .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 16:11:40,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:11:40,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:11:40,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:11:40,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:11:40,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:11:40,521 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:11:40,529 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:11:40,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:11:40,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:11:40,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:11:40,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:11:40,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:11:40,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:11:40,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:11:40,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:11:40,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:11:40,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:11:40,559 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:11:40,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:11:40,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:11:40,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:11:40,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:11:40,579 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:11:40,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:11:40,585 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:11:40,585 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:11:40,586 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:11:40,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:11:40,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:11:40,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:11:40,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:11:40,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:11:40,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:11:40,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:11:40,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:11:40,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:11:40,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:11:40,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:11:40,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:11:40,602 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:11:40,602 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 16:11:40,644 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:11:40,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:11:40,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:11:40,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:11:40,649 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:11:40,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:11:40,649 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:11:40,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 16:11:40,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:11:40,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:11:40,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:11:40,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:11:40,655 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:11:40,655 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:11:40,656 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:11:40,656 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:11:40,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:11:40,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:11:40,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:11:40,657 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:11:40,657 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:11:40,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:11:40,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:11:40,657 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:11:40,658 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:11:40,658 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 16:11:40,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 16:11:40,658 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:11:40,658 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 -> b76ecfcab69931c531f8f47556627be2c19ef8db [2019-11-27 16:11:41,106 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:11:41,124 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:11:41,131 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:11:41,133 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:11:41,135 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:11:41,136 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext2-properties/simple_and_skiplist_2lvl-2.i [2019-11-27 16:11:41,244 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fa4cbda8/ad80d960c36a471386a111abf48280c0/FLAG5eaa5ea79 [2019-11-27 16:11:42,112 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:11:42,118 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext2-properties/simple_and_skiplist_2lvl-2.i [2019-11-27 16:11:42,146 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fa4cbda8/ad80d960c36a471386a111abf48280c0/FLAG5eaa5ea79 [2019-11-27 16:11:42,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fa4cbda8/ad80d960c36a471386a111abf48280c0 [2019-11-27 16:11:42,304 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:11:42,306 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:11:42,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:11:42,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:11:42,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:11:42,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:11:42" (1/1) ... [2019-11-27 16:11:42,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eb9fd83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:42, skipping insertion in model container [2019-11-27 16:11:42,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:11:42" (1/1) ... [2019-11-27 16:11:42,345 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:11:42,412 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:11:43,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:11:43,119 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:11:43,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:11:43,316 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:11:43,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:43 WrapperNode [2019-11-27 16:11:43,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:11:43,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:11:43,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:11:43,322 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:11:43,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:43" (1/1) ... [2019-11-27 16:11:43,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:43" (1/1) ... [2019-11-27 16:11:43,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:11:43,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:11:43,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:11:43,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:11:43,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:43" (1/1) ... [2019-11-27 16:11:43,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:43" (1/1) ... [2019-11-27 16:11:43,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:43" (1/1) ... [2019-11-27 16:11:43,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:43" (1/1) ... [2019-11-27 16:11:43,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:43" (1/1) ... [2019-11-27 16:11:43,542 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:43" (1/1) ... [2019-11-27 16:11:43,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:43" (1/1) ... [2019-11-27 16:11:43,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:11:43,562 INFO L168 Benchmark]: Toolchain (without parser) took 1255.30 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 974.0 MB in the end (delta: -13.7 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:11:43,569 INFO L168 Benchmark]: CDTParser took 1.87 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 16:11:43,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1006.85 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 979.7 MB in the end (delta: -19.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-27 16:11:43,571 INFO L168 Benchmark]: Boogie Procedure Inliner took 133.16 ms. Allocated memory is still 1.0 GB. Free memory is still 979.7 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:11:43,572 INFO L168 Benchmark]: Boogie Preprocessor took 103.87 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. [2019-11-27 16:11:43,578 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.87 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 1006.85 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 979.7 MB in the end (delta: -19.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 133.16 ms. Allocated memory is still 1.0 GB. Free memory is still 979.7 MB. There was no memory consumed. Max. memory is 12.5 GB. * Boogie Preprocessor took 103.87 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. 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 16:11:46,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:11:46,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:11:46,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:11:46,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:11:46,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:11:46,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:11:46,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:11:46,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:11:46,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:11:46,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:11:46,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:11:46,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:11:46,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:11:46,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:11:46,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:11:46,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:11:46,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:11:46,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:11:46,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:11:46,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:11:46,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:11:46,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:11:46,408 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:11:46,413 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:11:46,414 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:11:46,414 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:11:46,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:11:46,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:11:46,420 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:11:46,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:11:46,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:11:46,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:11:46,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:11:46,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:11:46,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:11:46,433 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:11:46,433 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:11:46,433 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:11:46,434 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:11:46,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:11:46,439 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 16:11:46,471 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:11:46,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:11:46,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:11:46,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:11:46,478 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:11:46,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:11:46,478 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:11:46,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:11:46,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:11:46,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:11:46,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:11:46,480 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:11:46,481 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 16:11:46,481 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 16:11:46,483 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:11:46,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:11:46,483 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:11:46,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:11:46,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:11:46,484 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:11:46,484 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:11:46,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:11:46,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:11:46,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:11:46,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:11:46,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:11:46,487 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 16:11:46,489 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 16:11:46,489 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:11:46,489 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 16:11:46,490 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 -> b76ecfcab69931c531f8f47556627be2c19ef8db [2019-11-27 16:11:46,987 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:11:47,005 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:11:47,012 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:11:47,014 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:11:47,014 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:11:47,015 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext2-properties/simple_and_skiplist_2lvl-2.i [2019-11-27 16:11:47,119 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/659028053/fed8da9d5b7c46c5a66e4e5141010af8/FLAG65d3f9b6c [2019-11-27 16:11:47,953 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:11:47,953 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext2-properties/simple_and_skiplist_2lvl-2.i [2019-11-27 16:11:47,979 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/659028053/fed8da9d5b7c46c5a66e4e5141010af8/FLAG65d3f9b6c [2019-11-27 16:11:48,149 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/659028053/fed8da9d5b7c46c5a66e4e5141010af8 [2019-11-27 16:11:48,156 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:11:48,158 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:11:48,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:11:48,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:11:48,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:11:48,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:11:48" (1/1) ... [2019-11-27 16:11:48,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d1b8b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:48, skipping insertion in model container [2019-11-27 16:11:48,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:11:48" (1/1) ... [2019-11-27 16:11:48,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:11:48,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:11:48,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:11:48,919 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:11:49,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:11:49,105 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:11:49,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:49 WrapperNode [2019-11-27 16:11:49,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:11:49,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:11:49,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:11:49,113 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:11:49,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:49" (1/1) ... [2019-11-27 16:11:49,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:49" (1/1) ... [2019-11-27 16:11:49,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:11:49,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:11:49,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:11:49,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:11:49,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:49" (1/1) ... [2019-11-27 16:11:49,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:49" (1/1) ... [2019-11-27 16:11:49,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:49" (1/1) ... [2019-11-27 16:11:49,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:49" (1/1) ... [2019-11-27 16:11:49,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:49" (1/1) ... [2019-11-27 16:11:49,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:49" (1/1) ... [2019-11-27 16:11:49,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:49" (1/1) ... [2019-11-27 16:11:49,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:11:49,289 INFO L168 Benchmark]: Toolchain (without parser) took 1130.45 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 972.5 MB in the end (delta: -10.8 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:11:49,293 INFO L168 Benchmark]: CDTParser took 1.35 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 16:11:49,294 INFO L168 Benchmark]: CACSL2BoogieTranslator took 943.07 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 978.2 MB in the end (delta: -16.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-27 16:11:49,296 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.88 ms. Allocated memory is still 1.0 GB. Free memory was 978.2 MB in the beginning and 972.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 16:11:49,302 INFO L168 Benchmark]: Boogie Preprocessor took 85.04 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:11:49,313 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.35 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 943.07 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 978.2 MB in the end (delta: -16.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 91.88 ms. Allocated memory is still 1.0 GB. Free memory was 978.2 MB in the beginning and 972.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 85.04 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 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...