./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/list-simple/dll2n_prepend_equal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 32f26835 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/list-simple/dll2n_prepend_equal.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4aa4ae97046b46e050cb2478dec257c6a324dc09 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/list-simple/dll2n_prepend_equal.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4aa4ae97046b46e050cb2478dec257c6a324dc09 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-32f2683 [2019-11-24 22:23:17,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 22:23:17,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 22:23:17,436 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 22:23:17,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 22:23:17,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 22:23:17,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 22:23:17,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 22:23:17,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 22:23:17,465 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 22:23:17,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 22:23:17,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 22:23:17,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 22:23:17,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 22:23:17,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 22:23:17,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 22:23:17,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 22:23:17,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 22:23:17,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 22:23:17,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 22:23:17,498 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 22:23:17,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 22:23:17,502 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 22:23:17,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 22:23:17,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 22:23:17,510 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 22:23:17,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 22:23:17,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 22:23:17,516 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 22:23:17,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 22:23:17,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 22:23:17,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 22:23:17,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 22:23:17,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 22:23:17,523 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 22:23:17,523 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 22:23:17,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 22:23:17,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 22:23:17,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 22:23:17,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 22:23:17,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 22:23:17,531 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-24 22:23:17,560 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 22:23:17,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 22:23:17,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-24 22:23:17,564 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-24 22:23:17,564 INFO L138 SettingsManager]: * Use SBE=true [2019-11-24 22:23:17,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 22:23:17,565 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 22:23:17,565 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-24 22:23:17,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 22:23:17,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 22:23:17,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 22:23:17,569 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-24 22:23:17,569 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-24 22:23:17,569 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-24 22:23:17,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 22:23:17,570 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-24 22:23:17,570 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 22:23:17,570 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-24 22:23:17,570 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 22:23:17,571 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-24 22:23:17,571 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 22:23:17,571 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 22:23:17,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 22:23:17,571 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 22:23:17,572 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 22:23:17,573 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-24 22:23:17,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 22:23:17,573 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 4aa4ae97046b46e050cb2478dec257c6a324dc09 [2019-11-24 22:23:18,003 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 22:23:18,022 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 22:23:18,027 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 22:23:18,030 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 22:23:18,032 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 22:23:18,033 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/dll2n_prepend_equal.i [2019-11-24 22:23:18,142 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dfb8f508/761845b9e73144a3b2ed1d3f703243a0/FLAGc79dc7629 [2019-11-24 22:23:19,016 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 22:23:19,017 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2n_prepend_equal.i [2019-11-24 22:23:19,043 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dfb8f508/761845b9e73144a3b2ed1d3f703243a0/FLAGc79dc7629 [2019-11-24 22:23:19,202 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dfb8f508/761845b9e73144a3b2ed1d3f703243a0 [2019-11-24 22:23:19,205 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 22:23:19,207 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-24 22:23:19,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 22:23:19,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 22:23:19,228 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 22:23:19,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:23:19" (1/1) ... [2019-11-24 22:23:19,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a3459d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:19, skipping insertion in model container [2019-11-24 22:23:19,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:23:19" (1/1) ... [2019-11-24 22:23:19,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 22:23:19,324 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 22:23:19,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 22:23:19,971 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 22:23:20,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 22:23:20,157 INFO L208 MainTranslator]: Completed translation [2019-11-24 22:23:20,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:20 WrapperNode [2019-11-24 22:23:20,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 22:23:20,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 22:23:20,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 22:23:20,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 22:23:20,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:20" (1/1) ... [2019-11-24 22:23:20,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:20" (1/1) ... [2019-11-24 22:23:20,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:20" (1/1) ... [2019-11-24 22:23:20,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:20" (1/1) ... [2019-11-24 22:23:20,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:20" (1/1) ... [2019-11-24 22:23:20,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:20" (1/1) ... [2019-11-24 22:23:20,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:20" (1/1) ... [2019-11-24 22:23:20,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 22:23:20,312 INFO L168 Benchmark]: Toolchain (without parser) took 1091.51 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.3 MB in the beginning and 966.8 MB in the end (delta: -6.6 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-24 22:23:20,313 INFO L168 Benchmark]: CDTParser took 0.45 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. [2019-11-24 22:23:20,317 INFO L168 Benchmark]: CACSL2BoogieTranslator took 935.13 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.3 MB in the beginning and 972.5 MB in the end (delta: -12.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-24 22:23:20,318 INFO L168 Benchmark]: Boogie Preprocessor took 136.80 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. [2019-11-24 22:23:20,325 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 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 935.13 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.3 MB in the beginning and 972.5 MB in the end (delta: -12.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 136.80 ms. Allocated memory is still 1.0 GB. Free memory was 972.5 MB in the beginning and 966.8 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-32f2683 [2019-11-24 22:23:23,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 22:23:23,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 22:23:23,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 22:23:23,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 22:23:23,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 22:23:23,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 22:23:23,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 22:23:23,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 22:23:23,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 22:23:23,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 22:23:23,142 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 22:23:23,142 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 22:23:23,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 22:23:23,147 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 22:23:23,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 22:23:23,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 22:23:23,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 22:23:23,156 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 22:23:23,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 22:23:23,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 22:23:23,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 22:23:23,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 22:23:23,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 22:23:23,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 22:23:23,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 22:23:23,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 22:23:23,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 22:23:23,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 22:23:23,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 22:23:23,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 22:23:23,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 22:23:23,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 22:23:23,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 22:23:23,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 22:23:23,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 22:23:23,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 22:23:23,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 22:23:23,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 22:23:23,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 22:23:23,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 22:23:23,204 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-24 22:23:23,233 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 22:23:23,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 22:23:23,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-24 22:23:23,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-24 22:23:23,238 INFO L138 SettingsManager]: * Use SBE=true [2019-11-24 22:23:23,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 22:23:23,239 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 22:23:23,239 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-24 22:23:23,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 22:23:23,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 22:23:23,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 22:23:23,242 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-24 22:23:23,242 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-24 22:23:23,243 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-24 22:23:23,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 22:23:23,243 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-24 22:23:23,243 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-24 22:23:23,243 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-24 22:23:23,244 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 22:23:23,246 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-24 22:23:23,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 22:23:23,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-24 22:23:23,246 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 22:23:23,247 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 22:23:23,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 22:23:23,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 22:23:23,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 22:23:23,247 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-24 22:23:23,248 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-24 22:23:23,248 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 22:23:23,250 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 4aa4ae97046b46e050cb2478dec257c6a324dc09 [2019-11-24 22:23:23,674 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 22:23:23,691 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 22:23:23,699 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 22:23:23,700 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 22:23:23,703 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 22:23:23,704 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/dll2n_prepend_equal.i [2019-11-24 22:23:23,810 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b24eac6c1/09b20a17e5564c0b83d767f863907e8f/FLAGdad34712a [2019-11-24 22:23:24,675 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 22:23:24,676 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2n_prepend_equal.i [2019-11-24 22:23:24,702 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b24eac6c1/09b20a17e5564c0b83d767f863907e8f/FLAGdad34712a [2019-11-24 22:23:24,835 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b24eac6c1/09b20a17e5564c0b83d767f863907e8f [2019-11-24 22:23:24,843 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 22:23:24,844 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-24 22:23:24,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 22:23:24,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 22:23:24,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 22:23:24,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:23:24" (1/1) ... [2019-11-24 22:23:24,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e52e31a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:24, skipping insertion in model container [2019-11-24 22:23:24,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:23:24" (1/1) ... [2019-11-24 22:23:24,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 22:23:24,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 22:23:25,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 22:23:25,621 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 22:23:25,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 22:23:25,859 INFO L208 MainTranslator]: Completed translation [2019-11-24 22:23:25,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:25 WrapperNode [2019-11-24 22:23:25,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 22:23:25,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 22:23:25,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 22:23:25,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 22:23:25,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:25" (1/1) ... [2019-11-24 22:23:25,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:25" (1/1) ... [2019-11-24 22:23:25,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:25" (1/1) ... [2019-11-24 22:23:25,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:25" (1/1) ... [2019-11-24 22:23:25,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:25" (1/1) ... [2019-11-24 22:23:25,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:25" (1/1) ... [2019-11-24 22:23:25,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:25" (1/1) ... [2019-11-24 22:23:26,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 22:23:26,012 INFO L168 Benchmark]: Toolchain (without parser) took 1165.68 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 963.1 MB in the beginning and 966.8 MB in the end (delta: -3.6 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-24 22:23:26,013 INFO L168 Benchmark]: CDTParser took 0.23 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. [2019-11-24 22:23:26,021 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1016.40 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 963.1 MB in the beginning and 972.5 MB in the end (delta: -9.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. [2019-11-24 22:23:26,022 INFO L168 Benchmark]: Boogie Preprocessor took 143.29 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. [2019-11-24 22:23:26,033 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 1016.40 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 963.1 MB in the beginning and 972.5 MB in the end (delta: -9.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 143.29 ms. Allocated memory is still 1.0 GB. Free memory was 972.5 MB in the beginning and 966.8 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...