./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 da95e156 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-da95e15 [2019-11-27 09:49:51,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 09:49:51,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 09:49:51,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 09:49:51,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 09:49:51,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 09:49:51,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 09:49:51,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 09:49:51,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 09:49:51,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 09:49:51,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 09:49:51,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 09:49:51,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 09:49:51,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 09:49:51,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 09:49:51,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 09:49:51,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 09:49:51,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 09:49:51,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 09:49:51,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 09:49:51,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 09:49:51,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 09:49:51,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 09:49:51,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 09:49:51,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 09:49:51,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 09:49:51,676 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 09:49:51,678 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 09:49:51,679 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 09:49:51,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 09:49:51,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 09:49:51,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 09:49:51,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 09:49:51,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 09:49:51,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 09:49:51,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 09:49:51,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 09:49:51,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 09:49:51,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 09:49:51,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 09:49:51,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 09:49:51,708 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 09:49:51,745 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 09:49:51,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 09:49:51,752 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 09:49:51,755 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 09:49:51,755 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 09:49:51,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 09:49:51,756 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 09:49:51,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 09:49:51,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 09:49:51,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 09:49:51,759 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 09:49:51,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 09:49:51,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 09:49:51,764 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 09:49:51,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 09:49:51,764 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 09:49:51,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 09:49:51,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 09:49:51,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 09:49:51,765 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 09:49:51,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 09:49:51,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 09:49:51,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 09:49:51,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 09:49:51,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 09:49:51,769 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 09:49:51,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 09:49:51,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 09:49:51,771 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 09:49:52,306 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 09:49:52,337 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 09:49:52,344 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 09:49:52,347 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 09:49:52,351 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 09:49:52,352 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext2-properties/simple_and_skiplist_2lvl-2.i [2019-11-27 09:49:52,524 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78b3e6f89/564967f8d61d4dd483f1a3df662b5b46/FLAG675d6627a [2019-11-27 09:49:53,730 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 09:49:53,733 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext2-properties/simple_and_skiplist_2lvl-2.i [2019-11-27 09:49:53,768 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78b3e6f89/564967f8d61d4dd483f1a3df662b5b46/FLAG675d6627a [2019-11-27 09:49:53,807 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78b3e6f89/564967f8d61d4dd483f1a3df662b5b46 [2019-11-27 09:49:53,814 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 09:49:53,816 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 09:49:53,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 09:49:53,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 09:49:53,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 09:49:53,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 09:49:53" (1/1) ... [2019-11-27 09:49:53,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3699732f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:49:53, skipping insertion in model container [2019-11-27 09:49:53,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 09:49:53" (1/1) ... [2019-11-27 09:49:53,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 09:49:53,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 09:49:54,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 09:49:54,916 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 09:49:55,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 09:49:55,184 INFO L208 MainTranslator]: Completed translation [2019-11-27 09:49:55,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:49:55 WrapperNode [2019-11-27 09:49:55,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 09:49:55,187 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 09:49:55,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 09:49:55,188 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 09:49:55,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:49:55" (1/1) ... [2019-11-27 09:49:55,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:49:55" (1/1) ... [2019-11-27 09:49:55,322 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 09:49:55,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 09:49:55,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 09:49:55,332 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 09:49:55,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:49:55" (1/1) ... [2019-11-27 09:49:55,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:49:55" (1/1) ... [2019-11-27 09:49:55,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:49:55" (1/1) ... [2019-11-27 09:49:55,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:49:55" (1/1) ... [2019-11-27 09:49:55,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:49:55" (1/1) ... [2019-11-27 09:49:55,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:49:55" (1/1) ... [2019-11-27 09:49:55,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:49:55" (1/1) ... [2019-11-27 09:49:55,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 09:49:55,439 INFO L168 Benchmark]: Toolchain (without parser) took 1614.97 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 968.2 MB in the end (delta: -8.0 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 09:49:55,441 INFO L168 Benchmark]: CDTParser took 0.36 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 09:49:55,455 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1361.65 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). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-27 09:49:55,458 INFO L168 Benchmark]: Boogie Procedure Inliner took 144.01 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. [2019-11-27 09:49:55,460 INFO L168 Benchmark]: Boogie Preprocessor took 96.92 ms. Allocated memory is still 1.0 GB. Free memory was 974.0 MB in the beginning and 968.2 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 09:49:55,472 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 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 1361.65 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). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 144.01 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. * Boogie Preprocessor took 96.92 ms. Allocated memory is still 1.0 GB. Free memory was 974.0 MB in the beginning and 968.2 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-da95e15 [2019-11-27 09:49:59,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 09:49:59,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 09:49:59,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 09:49:59,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 09:49:59,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 09:49:59,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 09:49:59,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 09:49:59,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 09:49:59,444 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 09:49:59,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 09:49:59,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 09:49:59,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 09:49:59,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 09:49:59,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 09:49:59,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 09:49:59,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 09:49:59,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 09:49:59,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 09:49:59,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 09:49:59,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 09:49:59,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 09:49:59,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 09:49:59,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 09:49:59,534 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 09:49:59,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 09:49:59,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 09:49:59,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 09:49:59,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 09:49:59,542 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 09:49:59,546 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 09:49:59,547 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 09:49:59,548 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 09:49:59,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 09:49:59,554 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 09:49:59,554 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 09:49:59,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 09:49:59,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 09:49:59,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 09:49:59,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 09:49:59,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 09:49:59,567 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 09:49:59,609 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 09:49:59,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 09:49:59,612 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 09:49:59,615 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 09:49:59,615 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 09:49:59,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 09:49:59,616 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 09:49:59,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 09:49:59,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 09:49:59,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 09:49:59,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 09:49:59,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 09:49:59,621 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 09:49:59,622 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 09:49:59,624 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 09:49:59,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 09:49:59,624 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 09:49:59,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 09:49:59,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 09:49:59,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 09:49:59,627 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 09:49:59,627 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 09:49:59,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 09:49:59,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 09:49:59,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 09:49:59,629 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 09:49:59,629 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 09:49:59,632 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 09:49:59,632 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 09:49:59,632 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 09:49:59,634 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 09:50:00,180 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 09:50:00,211 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 09:50:00,218 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 09:50:00,223 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 09:50:00,225 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 09:50:00,227 INFO L428 ainManager$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 09:50:00,393 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/477c5e1ce/45338130c0f84c289305d57e58cb1eb8/FLAG1c9f11ee9 [2019-11-27 09:50:01,590 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 09:50:01,593 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext2-properties/simple_and_skiplist_2lvl-2.i [2019-11-27 09:50:01,619 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/477c5e1ce/45338130c0f84c289305d57e58cb1eb8/FLAG1c9f11ee9 [2019-11-27 09:50:01,648 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/477c5e1ce/45338130c0f84c289305d57e58cb1eb8 [2019-11-27 09:50:01,658 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 09:50:01,660 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 09:50:01,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 09:50:01,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 09:50:01,670 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 09:50:01,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 09:50:01" (1/1) ... [2019-11-27 09:50:01,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b5eb229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:01, skipping insertion in model container [2019-11-27 09:50:01,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 09:50:01" (1/1) ... [2019-11-27 09:50:01,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 09:50:01,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 09:50:02,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 09:50:02,769 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 09:50:02,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 09:50:03,041 INFO L208 MainTranslator]: Completed translation [2019-11-27 09:50:03,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:03 WrapperNode [2019-11-27 09:50:03,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 09:50:03,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 09:50:03,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 09:50:03,051 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 09:50:03,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:03" (1/1) ... [2019-11-27 09:50:03,129 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:03" (1/1) ... [2019-11-27 09:50:03,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 09:50:03,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 09:50:03,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 09:50:03,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 09:50:03,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:03" (1/1) ... [2019-11-27 09:50:03,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:03" (1/1) ... [2019-11-27 09:50:03,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:03" (1/1) ... [2019-11-27 09:50:03,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:03" (1/1) ... [2019-11-27 09:50:03,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:03" (1/1) ... [2019-11-27 09:50:03,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:03" (1/1) ... [2019-11-27 09:50:03,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:03" (1/1) ... [2019-11-27 09:50:03,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 09:50:03,318 INFO L168 Benchmark]: Toolchain (without parser) took 1654.47 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.2 MB in the beginning and 968.2 MB in the end (delta: -7.9 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 09:50:03,323 INFO L168 Benchmark]: CDTParser took 2.76 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 09:50:03,327 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1380.03 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.2 MB in the beginning and 973.9 MB in the end (delta: -13.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. [2019-11-27 09:50:03,328 INFO L168 Benchmark]: Boogie Procedure Inliner took 152.67 ms. Allocated memory is still 1.0 GB. Free memory was 973.9 MB in the beginning and 968.2 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 09:50:03,337 INFO L168 Benchmark]: Boogie Preprocessor took 115.12 ms. Allocated memory is still 1.0 GB. Free memory is still 968.2 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 09:50:03,345 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.76 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 1380.03 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.2 MB in the beginning and 973.9 MB in the end (delta: -13.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 152.67 ms. Allocated memory is still 1.0 GB. Free memory was 973.9 MB in the beginning and 968.2 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 115.12 ms. Allocated memory is still 1.0 GB. Free memory is still 968.2 MB. There was no memory consumed. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...