./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/list-simple/dll2n_remove_all.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-simple/dll2n_remove_all.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 d9cd680588366d8f4117005099c5fa975e5f03ed ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-simple/dll2n_remove_all.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 d9cd680588366d8f4117005099c5fa975e5f03ed .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:50:05,485 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 09:50:05,489 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 09:50:05,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 09:50:05,524 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 09:50:05,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 09:50:05,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 09:50:05,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 09:50:05,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 09:50:05,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 09:50:05,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 09:50:05,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 09:50:05,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 09:50:05,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 09:50:05,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 09:50:05,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 09:50:05,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 09:50:05,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 09:50:05,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 09:50:05,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 09:50:05,609 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 09:50:05,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 09:50:05,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 09:50:05,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 09:50:05,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 09:50:05,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 09:50:05,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 09:50:05,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 09:50:05,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 09:50:05,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 09:50:05,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 09:50:05,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 09:50:05,644 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 09:50:05,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 09:50:05,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 09:50:05,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 09:50:05,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 09:50:05,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 09:50:05,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 09:50:05,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 09:50:05,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 09:50:05,662 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 09:50:05,701 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 09:50:05,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 09:50:05,704 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 09:50:05,706 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 09:50:05,708 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 09:50:05,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 09:50:05,708 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 09:50:05,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 09:50:05,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 09:50:05,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 09:50:05,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 09:50:05,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 09:50:05,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 09:50:05,714 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 09:50:05,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 09:50:05,714 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 09:50:05,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 09:50:05,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 09:50:05,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 09:50:05,716 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 09:50:05,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 09:50:05,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 09:50:05,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 09:50:05,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 09:50:05,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 09:50:05,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 09:50:05,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 09:50:05,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 09:50:05,721 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 -> d9cd680588366d8f4117005099c5fa975e5f03ed [2019-11-27 09:50:06,315 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 09:50:06,341 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 09:50:06,348 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 09:50:06,353 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 09:50:06,354 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 09:50:06,358 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/dll2n_remove_all.i [2019-11-27 09:50:06,523 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/438c3a167/aa00463ae4a44eec8a0fb3397e2f0d60/FLAG911dddca7 [2019-11-27 09:50:07,756 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 09:50:07,759 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2n_remove_all.i [2019-11-27 09:50:07,820 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/438c3a167/aa00463ae4a44eec8a0fb3397e2f0d60/FLAG911dddca7 [2019-11-27 09:50:07,840 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/438c3a167/aa00463ae4a44eec8a0fb3397e2f0d60 [2019-11-27 09:50:07,844 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 09:50:07,851 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 09:50:07,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 09:50:07,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 09:50:07,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 09:50:07,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 09:50:07" (1/1) ... [2019-11-27 09:50:07,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9523cc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:07, skipping insertion in model container [2019-11-27 09:50:07,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 09:50:07" (1/1) ... [2019-11-27 09:50:07,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 09:50:08,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 09:50:08,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 09:50:08,920 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 09:50:09,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 09:50:09,196 INFO L208 MainTranslator]: Completed translation [2019-11-27 09:50:09,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:09 WrapperNode [2019-11-27 09:50:09,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 09:50:09,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 09:50:09,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 09:50:09,205 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 09:50:09,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:09" (1/1) ... [2019-11-27 09:50:09,265 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:09" (1/1) ... [2019-11-27 09:50:09,318 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 09:50:09,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 09:50:09,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 09:50:09,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 09:50:09,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:09" (1/1) ... [2019-11-27 09:50:09,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:09" (1/1) ... [2019-11-27 09:50:09,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:09" (1/1) ... [2019-11-27 09:50:09,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:09" (1/1) ... [2019-11-27 09:50:09,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:09" (1/1) ... [2019-11-27 09:50:09,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:09" (1/1) ... [2019-11-27 09:50:09,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:09" (1/1) ... [2019-11-27 09:50:09,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 09:50:09,440 INFO L168 Benchmark]: Toolchain (without parser) took 1590.84 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 966.8 MB in the end (delta: -5.1 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 09:50:09,444 INFO L168 Benchmark]: CDTParser took 0.44 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 09:50:09,448 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1338.86 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: -10.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-27 09:50:09,450 INFO L168 Benchmark]: Boogie Procedure Inliner took 123.28 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 09:50:09,455 INFO L168 Benchmark]: Boogie Preprocessor took 106.77 ms. Allocated memory is still 1.0 GB. Free memory was 972.5 MB in the beginning and 966.8 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 09:50:09,468 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 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 1338.86 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: -10.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 123.28 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. * Boogie Preprocessor took 106.77 ms. Allocated memory is still 1.0 GB. Free memory was 972.5 MB in the beginning and 966.8 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 09:50:13,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 09:50:13,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 09:50:13,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 09:50:13,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 09:50:13,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 09:50:13,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 09:50:13,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 09:50:13,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 09:50:13,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 09:50:13,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 09:50:13,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 09:50:13,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 09:50:13,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 09:50:13,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 09:50:13,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 09:50:13,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 09:50:13,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 09:50:13,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 09:50:13,527 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 09:50:13,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 09:50:13,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 09:50:13,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 09:50:13,548 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 09:50:13,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 09:50:13,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 09:50:13,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 09:50:13,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 09:50:13,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 09:50:13,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 09:50:13,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 09:50:13,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 09:50:13,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 09:50:13,574 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 09:50:13,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 09:50:13,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 09:50:13,580 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 09:50:13,581 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 09:50:13,581 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 09:50:13,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 09:50:13,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 09:50:13,588 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 09:50:13,625 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 09:50:13,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 09:50:13,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 09:50:13,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 09:50:13,634 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 09:50:13,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 09:50:13,635 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 09:50:13,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 09:50:13,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 09:50:13,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 09:50:13,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 09:50:13,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 09:50:13,640 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 09:50:13,640 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 09:50:13,641 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 09:50:13,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 09:50:13,643 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 09:50:13,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 09:50:13,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 09:50:13,644 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 09:50:13,644 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 09:50:13,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 09:50:13,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 09:50:13,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 09:50:13,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 09:50:13,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 09:50:13,649 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 09:50:13,650 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 09:50:13,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 09:50:13,650 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 09:50:13,652 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 -> d9cd680588366d8f4117005099c5fa975e5f03ed [2019-11-27 09:50:14,250 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 09:50:14,280 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 09:50:14,290 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 09:50:14,293 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 09:50:14,296 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 09:50:14,298 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/dll2n_remove_all.i [2019-11-27 09:50:14,455 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2138e7cf2/31135d824b664b29ab47390351ae0be9/FLAG71923271d [2019-11-27 09:50:15,670 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 09:50:15,675 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2n_remove_all.i [2019-11-27 09:50:15,713 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2138e7cf2/31135d824b664b29ab47390351ae0be9/FLAG71923271d [2019-11-27 09:50:15,749 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2138e7cf2/31135d824b664b29ab47390351ae0be9 [2019-11-27 09:50:15,759 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 09:50:15,764 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 09:50:15,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 09:50:15,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 09:50:15,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 09:50:15,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 09:50:15" (1/1) ... [2019-11-27 09:50:15,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f1636fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:15, skipping insertion in model container [2019-11-27 09:50:15,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 09:50:15" (1/1) ... [2019-11-27 09:50:15,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 09:50:15,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 09:50:16,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 09:50:16,896 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 09:50:17,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 09:50:17,193 INFO L208 MainTranslator]: Completed translation [2019-11-27 09:50:17,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:17 WrapperNode [2019-11-27 09:50:17,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 09:50:17,196 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 09:50:17,198 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 09:50:17,198 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 09:50:17,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:17" (1/1) ... [2019-11-27 09:50:17,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:17" (1/1) ... [2019-11-27 09:50:17,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 09:50:17,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 09:50:17,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 09:50:17,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 09:50:17,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:17" (1/1) ... [2019-11-27 09:50:17,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:17" (1/1) ... [2019-11-27 09:50:17,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:17" (1/1) ... [2019-11-27 09:50:17,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:17" (1/1) ... [2019-11-27 09:50:17,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:17" (1/1) ... [2019-11-27 09:50:17,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:17" (1/1) ... [2019-11-27 09:50:17,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:50:17" (1/1) ... [2019-11-27 09:50:17,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 09:50:17,461 INFO L168 Benchmark]: Toolchain (without parser) took 1693.89 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 966.8 MB in the end (delta: -5.1 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 09:50:17,462 INFO L168 Benchmark]: CDTParser took 0.35 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 09:50:17,466 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1427.85 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 972.5 MB in the end (delta: -10.8 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-27 09:50:17,467 INFO L168 Benchmark]: Boogie Procedure Inliner took 143.12 ms. Allocated memory is still 1.0 GB. Free memory was 972.5 MB in the beginning and 966.8 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 09:50:17,468 INFO L168 Benchmark]: Boogie Preprocessor took 113.77 ms. Allocated memory is still 1.0 GB. Free memory is still 966.8 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 09:50:17,487 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 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 1427.85 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 972.5 MB in the end (delta: -10.8 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 143.12 ms. Allocated memory is still 1.0 GB. Free memory was 972.5 MB in the beginning and 966.8 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 113.77 ms. Allocated memory is still 1.0 GB. Free memory is still 966.8 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...