./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/forester-heap/dll-circular-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 509859d6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/forester-heap/dll-circular-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 647186f77af479db589ba9ca6b990f259feeb9ca ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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/forester-heap/dll-circular-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 647186f77af479db589ba9ca6b990f259feeb9ca .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 16:11:16,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:11:16,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:11:16,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:11:16,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:11:16,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:11:16,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:11:16,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:11:16,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:11:16,479 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:11:16,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:11:16,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:11:16,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:11:16,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:11:16,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:11:16,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:11:16,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:11:16,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:11:16,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:11:16,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:11:16,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:11:16,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:11:16,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:11:16,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:11:16,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:11:16,560 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:11:16,560 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:11:16,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:11:16,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:11:16,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:11:16,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:11:16,573 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:11:16,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:11:16,578 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:11:16,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:11:16,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:11:16,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:11:16,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:11:16,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:11:16,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:11:16,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:11:16,594 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 16:11:16,637 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:11:16,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:11:16,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:11:16,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:11:16,649 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:11:16,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:11:16,650 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:11:16,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 16:11:16,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:11:16,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:11:16,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:11:16,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:11:16,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:11:16,654 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:11:16,655 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:11:16,656 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:11:16,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:11:16,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:11:16,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:11:16,659 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:11:16,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:11:16,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:11:16,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:11:16,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:11:16,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:11:16,662 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 16:11:16,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 16:11:16,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:11:16,665 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 -> 647186f77af479db589ba9ca6b990f259feeb9ca [2019-11-27 16:11:17,183 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:11:17,198 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:11:17,204 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:11:17,205 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:11:17,207 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:11:17,211 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/dll-circular-2.i [2019-11-27 16:11:17,321 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b8a7c50b/ba3f1af84cc94fcb90fa0479796ac1b7/FLAG1e37d3fea [2019-11-27 16:11:18,515 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:11:18,516 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-circular-2.i [2019-11-27 16:11:18,553 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b8a7c50b/ba3f1af84cc94fcb90fa0479796ac1b7/FLAG1e37d3fea [2019-11-27 16:11:18,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b8a7c50b/ba3f1af84cc94fcb90fa0479796ac1b7 [2019-11-27 16:11:18,600 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:11:18,604 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:11:18,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:11:18,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:11:18,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:11:18,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:11:18" (1/1) ... [2019-11-27 16:11:18,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@611e8f47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:18, skipping insertion in model container [2019-11-27 16:11:18,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:11:18" (1/1) ... [2019-11-27 16:11:18,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:11:18,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:11:19,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:11:19,604 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:11:19,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:11:19,837 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:11:19,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:19 WrapperNode [2019-11-27 16:11:19,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:11:19,840 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:11:19,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:11:19,843 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:11:19,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:19" (1/1) ... [2019-11-27 16:11:19,919 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:19" (1/1) ... [2019-11-27 16:11:19,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:11:19,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:11:19,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:11:19,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:11:20,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:19" (1/1) ... [2019-11-27 16:11:20,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:19" (1/1) ... [2019-11-27 16:11:20,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:19" (1/1) ... [2019-11-27 16:11:20,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:19" (1/1) ... [2019-11-27 16:11:20,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:19" (1/1) ... [2019-11-27 16:11:20,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:19" (1/1) ... [2019-11-27 16:11:20,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:19" (1/1) ... [2019-11-27 16:11:20,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:11:20,098 INFO L168 Benchmark]: Toolchain (without parser) took 1486.24 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 979.7 MB in the end (delta: -18.0 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:11:20,113 INFO L168 Benchmark]: CDTParser took 0.31 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 16:11:20,115 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1230.80 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 979.7 MB in the end (delta: -18.0 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-27 16:11:20,117 INFO L168 Benchmark]: Boogie Procedure Inliner took 155.52 ms. Allocated memory is still 1.0 GB. Free memory is still 979.7 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:11:20,120 INFO L168 Benchmark]: Boogie Preprocessor took 90.46 ms. Allocated memory is still 1.0 GB. Free memory is still 979.7 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:11:20,128 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 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 1230.80 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 979.7 MB in the end (delta: -18.0 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 155.52 ms. Allocated memory is still 1.0 GB. Free memory is still 979.7 MB. There was no memory consumed. Max. memory is 12.5 GB. * Boogie Preprocessor took 90.46 ms. Allocated memory is still 1.0 GB. Free memory is still 979.7 MB. There was no memory consumed. Max. memory is 12.5 GB. 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 16:11:23,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:11:23,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:11:24,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:11:24,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:11:24,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:11:24,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:11:24,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:11:24,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:11:24,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:11:24,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:11:24,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:11:24,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:11:24,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:11:24,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:11:24,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:11:24,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:11:24,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:11:24,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:11:24,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:11:24,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:11:24,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:11:24,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:11:24,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:11:24,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:11:24,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:11:24,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:11:24,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:11:24,127 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:11:24,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:11:24,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:11:24,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:11:24,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:11:24,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:11:24,142 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:11:24,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:11:24,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:11:24,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:11:24,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:11:24,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:11:24,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:11:24,153 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 16:11:24,192 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:11:24,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:11:24,198 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:11:24,201 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:11:24,201 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:11:24,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:11:24,202 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:11:24,203 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:11:24,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:11:24,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:11:24,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:11:24,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:11:24,207 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 16:11:24,208 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 16:11:24,208 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:11:24,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:11:24,210 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:11:24,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:11:24,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:11:24,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:11:24,213 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:11:24,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:11:24,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:11:24,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:11:24,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:11:24,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:11:24,216 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 16:11:24,216 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 16:11:24,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:11:24,217 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 16:11:24,218 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 -> 647186f77af479db589ba9ca6b990f259feeb9ca [2019-11-27 16:11:24,843 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:11:24,874 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:11:24,884 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:11:24,886 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:11:24,888 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:11:24,889 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/dll-circular-2.i [2019-11-27 16:11:25,042 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/311b56274/e8c6c7207c9b42e3a9537f43a3153489/FLAG1080faace [2019-11-27 16:11:26,049 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:11:26,050 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-circular-2.i [2019-11-27 16:11:26,094 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/311b56274/e8c6c7207c9b42e3a9537f43a3153489/FLAG1080faace [2019-11-27 16:11:26,167 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/311b56274/e8c6c7207c9b42e3a9537f43a3153489 [2019-11-27 16:11:26,173 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:11:26,175 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:11:26,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:11:26,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:11:26,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:11:26,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:11:26" (1/1) ... [2019-11-27 16:11:26,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c3e2fce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:26, skipping insertion in model container [2019-11-27 16:11:26,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:11:26" (1/1) ... [2019-11-27 16:11:26,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:11:26,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:11:27,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:11:27,269 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:11:27,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:11:27,532 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:11:27,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:27 WrapperNode [2019-11-27 16:11:27,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:11:27,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:11:27,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:11:27,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:11:27,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:27" (1/1) ... [2019-11-27 16:11:27,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:27" (1/1) ... [2019-11-27 16:11:27,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:11:27,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:11:27,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:11:27,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:11:27,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:27" (1/1) ... [2019-11-27 16:11:27,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:27" (1/1) ... [2019-11-27 16:11:27,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:27" (1/1) ... [2019-11-27 16:11:27,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:27" (1/1) ... [2019-11-27 16:11:27,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:27" (1/1) ... [2019-11-27 16:11:27,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:27" (1/1) ... [2019-11-27 16:11:27,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:27" (1/1) ... [2019-11-27 16:11:27,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:11:27,757 INFO L168 Benchmark]: Toolchain (without parser) took 1578.92 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 967.4 MB in the beginning and 974.1 MB in the end (delta: -6.7 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:11:27,758 INFO L168 Benchmark]: CDTParser took 1.25 ms. Allocated memory is still 1.0 GB. Free memory is still 994.6 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:11:27,759 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1348.53 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 967.4 MB in the beginning and 979.9 MB in the end (delta: -12.4 MB). Peak memory consumption was 20.6 MB. Max. memory is 12.5 GB. [2019-11-27 16:11:27,764 INFO L168 Benchmark]: Boogie Procedure Inliner took 137.32 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:11:27,765 INFO L168 Benchmark]: Boogie Preprocessor took 74.36 ms. Allocated memory is still 1.0 GB. Free memory was 979.9 MB in the beginning and 974.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 16:11:27,781 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.25 ms. Allocated memory is still 1.0 GB. Free memory is still 994.6 MB. There was no memory consumed. Max. memory is 12.5 GB. * CACSL2BoogieTranslator took 1348.53 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 967.4 MB in the beginning and 979.9 MB in the end (delta: -12.4 MB). Peak memory consumption was 20.6 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 137.32 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 12.5 GB. * Boogie Preprocessor took 74.36 ms. Allocated memory is still 1.0 GB. Free memory was 979.9 MB in the beginning and 974.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...