./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/list-simple/dll2c_prepend_equal.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-simple/dll2c_prepend_equal.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 961cc3a58fcae29742bbb59c935dd1303821abd8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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/dll2c_prepend_equal.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 961cc3a58fcae29742bbb59c935dd1303821abd8 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 16:11:51,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:11:51,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:11:51,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:11:51,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:11:51,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:11:51,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:11:51,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:11:51,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:11:51,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:11:51,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:11:51,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:11:51,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:11:51,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:11:51,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:11:51,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:11:51,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:11:51,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:11:51,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:11:51,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:11:51,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:11:51,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:11:51,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:11:51,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:11:51,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:11:51,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:11:51,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:11:51,646 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:11:51,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:11:51,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:11:51,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:11:51,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:11:51,655 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:11:51,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:11:51,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:11:51,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:11:51,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:11:51,667 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:11:51,667 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:11:51,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:11:51,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:11:51,676 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 16:11:51,718 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:11:51,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:11:51,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:11:51,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:11:51,726 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:11:51,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:11:51,729 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:11:51,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 16:11:51,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:11:51,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:11:51,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:11:51,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:11:51,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:11:51,735 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:11:51,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:11:51,735 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:11:51,736 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:11:51,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:11:51,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:11:51,737 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:11:51,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:11:51,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:11:51,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:11:51,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:11:51,742 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:11:51,742 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 16:11:51,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 16:11:51,743 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:11:51,743 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 -> 961cc3a58fcae29742bbb59c935dd1303821abd8 [2019-11-27 16:11:52,305 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:11:52,333 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:11:52,339 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:11:52,345 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:11:52,345 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:11:52,346 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/dll2c_prepend_equal.i [2019-11-27 16:11:52,509 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2177c9f1/8fa5586f6bc74ca29c94ebe0f9f0a10c/FLAG0a044b6d4 [2019-11-27 16:11:53,754 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:11:53,755 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2c_prepend_equal.i [2019-11-27 16:11:53,797 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2177c9f1/8fa5586f6bc74ca29c94ebe0f9f0a10c/FLAG0a044b6d4 [2019-11-27 16:11:53,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2177c9f1/8fa5586f6bc74ca29c94ebe0f9f0a10c [2019-11-27 16:11:53,840 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:11:53,843 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:11:53,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:11:53,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:11:53,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:11:53,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:11:53" (1/1) ... [2019-11-27 16:11:53,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9334ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:53, skipping insertion in model container [2019-11-27 16:11:53,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:11:53" (1/1) ... [2019-11-27 16:11:53,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:11:53,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:11:54,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:11:54,908 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:11:55,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:11:55,192 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:11:55,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:55 WrapperNode [2019-11-27 16:11:55,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:11:55,196 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:11:55,196 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:11:55,197 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:11:55,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:55" (1/1) ... [2019-11-27 16:11:55,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:55" (1/1) ... [2019-11-27 16:11:55,332 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:11:55,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:11:55,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:11:55,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:11:55,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:55" (1/1) ... [2019-11-27 16:11:55,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:55" (1/1) ... [2019-11-27 16:11:55,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:55" (1/1) ... [2019-11-27 16:11:55,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:55" (1/1) ... [2019-11-27 16:11:55,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:55" (1/1) ... [2019-11-27 16:11:55,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:55" (1/1) ... [2019-11-27 16:11:55,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:55" (1/1) ... [2019-11-27 16:11:55,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:11:55,438 INFO L168 Benchmark]: Toolchain (without parser) took 1590.00 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 962.5 MB in the end (delta: -760.8 kB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:11:55,452 INFO L168 Benchmark]: CDTParser took 3.23 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 16:11:55,456 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1347.49 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 968.2 MB in the end (delta: -6.5 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. [2019-11-27 16:11:55,458 INFO L168 Benchmark]: Boogie Procedure Inliner took 137.72 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 16:11:55,464 INFO L168 Benchmark]: Boogie Preprocessor took 96.47 ms. Allocated memory is still 1.0 GB. Free memory was 968.2 MB in the beginning and 962.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 16:11:55,472 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.23 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 1347.49 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 968.2 MB in the end (delta: -6.5 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 137.72 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. * Boogie Preprocessor took 96.47 ms. Allocated memory is still 1.0 GB. Free memory was 968.2 MB in the beginning and 962.5 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 16:11:59,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:11:59,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:11:59,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:11:59,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:11:59,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:11:59,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:11:59,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:11:59,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:11:59,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:11:59,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:11:59,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:11:59,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:11:59,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:11:59,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:11:59,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:11:59,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:11:59,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:11:59,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:11:59,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:11:59,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:11:59,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:11:59,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:11:59,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:11:59,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:11:59,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:11:59,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:11:59,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:11:59,478 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:11:59,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:11:59,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:11:59,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:11:59,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:11:59,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:11:59,488 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:11:59,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:11:59,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:11:59,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:11:59,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:11:59,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:11:59,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:11:59,500 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 16:11:59,538 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:11:59,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:11:59,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:11:59,546 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:11:59,547 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:11:59,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:11:59,547 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:11:59,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:11:59,549 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:11:59,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:11:59,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:11:59,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:11:59,553 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 16:11:59,553 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 16:11:59,556 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:11:59,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:11:59,556 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:11:59,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:11:59,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:11:59,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:11:59,558 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:11:59,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:11:59,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:11:59,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:11:59,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:11:59,562 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:11:59,562 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 16:11:59,562 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 16:11:59,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:11:59,563 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 16:11:59,564 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 -> 961cc3a58fcae29742bbb59c935dd1303821abd8 [2019-11-27 16:12:00,121 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:12:00,151 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:12:00,158 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:12:00,163 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:12:00,165 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:12:00,167 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/dll2c_prepend_equal.i [2019-11-27 16:12:00,324 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/336639481/451905ef6c8a4ebcbc04808594d318dc/FLAGb38a16912 [2019-11-27 16:12:01,551 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:12:01,552 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2c_prepend_equal.i [2019-11-27 16:12:01,588 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/336639481/451905ef6c8a4ebcbc04808594d318dc/FLAGb38a16912 [2019-11-27 16:12:01,622 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/336639481/451905ef6c8a4ebcbc04808594d318dc [2019-11-27 16:12:01,633 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:12:01,637 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:12:01,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:12:01,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:12:01,652 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:12:01,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:12:01" (1/1) ... [2019-11-27 16:12:01,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1353300f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:01, skipping insertion in model container [2019-11-27 16:12:01,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:12:01" (1/1) ... [2019-11-27 16:12:01,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:12:01,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:12:02,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:12:02,775 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:12:02,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:12:03,094 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:12:03,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:03 WrapperNode [2019-11-27 16:12:03,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:12:03,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:12:03,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:12:03,100 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:12:03,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:03" (1/1) ... [2019-11-27 16:12:03,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:03" (1/1) ... [2019-11-27 16:12:03,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:12:03,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:12:03,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:12:03,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:12:03,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:03" (1/1) ... [2019-11-27 16:12:03,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:03" (1/1) ... [2019-11-27 16:12:03,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:03" (1/1) ... [2019-11-27 16:12:03,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:03" (1/1) ... [2019-11-27 16:12:03,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:03" (1/1) ... [2019-11-27 16:12:03,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:03" (1/1) ... [2019-11-27 16:12:03,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:03" (1/1) ... [2019-11-27 16:12:03,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:12:03,382 INFO L168 Benchmark]: Toolchain (without parser) took 1744.08 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 16:12:03,384 INFO L168 Benchmark]: CDTParser took 2.58 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 16:12:03,387 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1454.30 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 972.5 MB in the end (delta: -10.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. [2019-11-27 16:12:03,393 INFO L168 Benchmark]: Boogie Procedure Inliner took 171.94 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 16:12:03,403 INFO L168 Benchmark]: Boogie Preprocessor took 107.12 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 16:12:03,415 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.58 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 1454.30 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 972.5 MB in the end (delta: -10.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 171.94 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 107.12 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...