./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/list-simple/dll2c_prepend_unequal.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_unequal.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 b171d8322722cfe50829ea6c9e3bfdd3740068da ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_unequal.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 b171d8322722cfe50829ea6c9e3bfdd3740068da ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 16:11:51,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:11:51,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:11:51,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:11:51,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:11:51,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:11:51,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:11:51,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:11:51,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:11:51,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:11:51,457 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:11:51,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:11:51,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:11:51,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:11:51,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:11:51,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:11:51,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:11:51,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:11:51,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:11:51,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:11:51,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:11:51,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:11:51,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:11:51,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:11:51,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:11:51,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:11:51,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:11:51,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:11:51,542 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:11:51,543 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:11:51,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:11:51,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:11:51,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:11:51,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:11:51,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:11:51,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:11:51,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:11:51,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:11:51,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:11:51,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:11:51,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:11:51,568 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 16:11:51,607 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:11:51,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:11:51,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:11:51,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:11:51,615 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:11:51,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:11:51,615 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:11:51,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 16:11:51,617 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:11:51,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:11:51,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:11:51,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:11:51,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:11:51,622 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:11:51,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:11:51,622 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:11:51,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:11:51,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:11:51,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:11:51,627 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:11:51,627 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:11:51,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:11:51,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:11:51,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:11:51,628 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:11:51,628 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 16:11:51,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 16:11:51,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:11:51,631 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 -> b171d8322722cfe50829ea6c9e3bfdd3740068da [2019-11-27 16:11:52,263 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:11:52,290 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:11:52,298 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:11:52,301 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:11:52,303 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:11:52,306 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/dll2c_prepend_unequal.i [2019-11-27 16:11:52,459 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/244b9afea/dacb25fef3834c73bdc891e2a72a1f4a/FLAG763a97425 [2019-11-27 16:11:53,651 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:11:53,658 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2c_prepend_unequal.i [2019-11-27 16:11:53,698 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/244b9afea/dacb25fef3834c73bdc891e2a72a1f4a/FLAG763a97425 [2019-11-27 16:11:53,736 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/244b9afea/dacb25fef3834c73bdc891e2a72a1f4a [2019-11-27 16:11:53,742 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:11:53,744 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:11:53,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:11:53,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:11:53,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:11:53,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:11:53" (1/1) ... [2019-11-27 16:11:53,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74c88225 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 16:11:53,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:11:53" (1/1) ... [2019-11-27 16:11:53,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:11:53,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:11:54,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:11:54,817 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:11:54,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:11:55,116 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:11:55,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:11:55 WrapperNode [2019-11-27 16:11:55,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:11:55,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:11:55,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:11:55,124 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:11:55,144 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 16:11:55,214 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 16:11:55,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:11:55,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:11:55,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:11:55,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:11:55,322 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 16:11:55,322 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 16:11:55,348 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 16:11:55,348 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 16:11:55,372 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 16:11:55,391 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 16:11:55,399 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 16:11:55,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:11:55,416 INFO L168 Benchmark]: Toolchain (without parser) took 1666.49 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 967.4 MB in the beginning and 966.8 MB in the end (delta: 611.5 kB). Peak memory consumption was 677.1 kB. Max. memory is 12.5 GB. [2019-11-27 16:11:55,426 INFO L168 Benchmark]: CDTParser took 0.40 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 16:11:55,434 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1370.54 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 972.5 MB in the end (delta: -5.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-27 16:11:55,438 INFO L168 Benchmark]: Boogie Procedure Inliner took 183.48 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 16:11:55,440 INFO L168 Benchmark]: Boogie Preprocessor took 100.55 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 16:11:55,450 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 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 1370.54 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 972.5 MB in the end (delta: -5.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 183.48 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 100.55 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... ### Bit-precise run ### This is Ultimate 0.1.24-509859d [2019-11-27 16:11:59,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:11:59,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:11:59,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:11:59,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:11:59,419 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:11:59,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:11:59,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:11:59,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:11:59,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:11:59,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:11:59,459 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:11:59,459 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:11:59,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:11:59,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:11:59,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:11:59,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:11:59,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:11:59,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:11:59,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:11:59,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:11:59,510 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:11:59,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:11:59,516 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:11:59,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:11:59,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:11:59,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:11:59,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:11:59,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:11:59,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:11:59,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:11:59,533 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:11:59,535 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:11:59,538 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:11:59,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:11:59,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:11:59,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:11:59,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:11:59,547 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:11:59,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:11:59,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:11:59,553 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 16:11:59,607 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:11:59,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:11:59,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:11:59,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:11:59,617 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:11:59,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:11:59,619 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:11:59,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:11:59,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:11:59,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:11:59,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:11:59,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:11:59,624 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 16:11:59,625 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 16:11:59,626 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:11:59,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:11:59,626 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:11:59,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:11:59,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:11:59,627 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:11:59,628 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:11:59,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:11:59,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:11:59,631 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:11:59,631 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:11:59,631 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:11:59,632 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 16:11:59,632 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 16:11:59,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:11:59,635 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 16:11:59,637 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 -> b171d8322722cfe50829ea6c9e3bfdd3740068da [2019-11-27 16:12:00,190 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:12:00,235 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:12:00,238 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:12:00,246 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:12:00,246 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:12:00,251 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/dll2c_prepend_unequal.i [2019-11-27 16:12:00,406 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee0e0ca74/03ee41f905dc45ecb4ec2254fb61e40c/FLAG48dce8920 [2019-11-27 16:12:01,607 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:12:01,611 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2c_prepend_unequal.i [2019-11-27 16:12:01,650 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee0e0ca74/03ee41f905dc45ecb4ec2254fb61e40c/FLAG48dce8920 [2019-11-27 16:12:02,055 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee0e0ca74/03ee41f905dc45ecb4ec2254fb61e40c [2019-11-27 16:12:02,060 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:12:02,062 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:12:02,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:12:02,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:12:02,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:12:02,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:12:02" (1/1) ... [2019-11-27 16:12:02,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43f36d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:02, skipping insertion in model container [2019-11-27 16:12:02,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:12:02" (1/1) ... [2019-11-27 16:12:02,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:12:02,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:12:03,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:12:03,201 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:12:03,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:12:03,493 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:12:03,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:12:03 WrapperNode [2019-11-27 16:12:03,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:12:03,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:12:03,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:12:03,501 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:12:03,518 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 16:12:03,571 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 16:12:03,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:12:03,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:12:03,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:12:03,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:12:03,654 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 16:12:03,654 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 16:12:03,677 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 16:12:03,677 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 16:12:03,720 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 16:12:03,741 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 16:12:03,749 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 16:12:03,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:12:03,774 INFO L168 Benchmark]: Toolchain (without parser) took 1704.25 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 968.8 MB in the beginning and 968.3 MB in the end (delta: 544.4 kB). Peak memory consumption was 610.0 kB. Max. memory is 12.5 GB. [2019-11-27 16:12:03,775 INFO L168 Benchmark]: CDTParser took 0.50 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 16:12:03,777 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1420.44 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 968.8 MB in the beginning and 974.0 MB in the end (delta: -5.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 12.5 GB. [2019-11-27 16:12:03,779 INFO L168 Benchmark]: Boogie Procedure Inliner took 143.74 ms. Allocated memory is still 1.0 GB. Free memory was 974.0 MB in the beginning and 968.3 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 16:12:03,780 INFO L168 Benchmark]: Boogie Preprocessor took 118.26 ms. Allocated memory is still 1.0 GB. Free memory is still 968.3 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:12:03,800 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 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 1420.44 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 968.8 MB in the beginning and 974.0 MB in the end (delta: -5.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 143.74 ms. Allocated memory is still 1.0 GB. Free memory was 974.0 MB in the beginning and 968.3 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 118.26 ms. Allocated memory is still 1.0 GB. Free memory is still 968.3 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...