./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/list-simple/dll2n_append_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_append_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 a4f285607323e922caa9bbc912c8526475badf88 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_append_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 a4f285607323e922caa9bbc912c8526475badf88 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:23:14,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 22:23:14,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 22:23:14,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 22:23:14,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 22:23:14,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 22:23:14,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 22:23:14,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 22:23:14,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 22:23:14,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 22:23:14,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 22:23:14,308 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 22:23:14,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 22:23:14,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 22:23:14,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 22:23:14,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 22:23:14,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 22:23:14,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 22:23:14,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 22:23:14,343 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 22:23:14,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 22:23:14,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 22:23:14,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 22:23:14,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 22:23:14,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 22:23:14,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 22:23:14,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 22:23:14,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 22:23:14,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 22:23:14,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 22:23:14,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 22:23:14,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 22:23:14,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 22:23:14,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 22:23:14,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 22:23:14,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 22:23:14,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 22:23:14,399 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 22:23:14,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 22:23:14,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 22:23:14,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 22:23:14,407 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-24 22:23:14,445 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 22:23:14,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 22:23:14,450 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-24 22:23:14,453 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-24 22:23:14,453 INFO L138 SettingsManager]: * Use SBE=true [2019-11-24 22:23:14,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 22:23:14,454 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 22:23:14,454 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-24 22:23:14,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 22:23:14,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 22:23:14,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 22:23:14,458 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-24 22:23:14,458 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-24 22:23:14,459 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-24 22:23:14,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 22:23:14,461 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-24 22:23:14,461 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 22:23:14,461 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-24 22:23:14,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 22:23:14,462 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-24 22:23:14,463 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 22:23:14,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 22:23:14,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 22:23:14,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 22:23:14,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 22:23:14,466 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-24 22:23:14,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 22:23:14,467 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 -> a4f285607323e922caa9bbc912c8526475badf88 [2019-11-24 22:23:15,055 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 22:23:15,084 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 22:23:15,091 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 22:23:15,095 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 22:23:15,096 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 22:23:15,099 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/dll2n_append_equal.i [2019-11-24 22:23:15,259 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3726b5660/c694a340ee814cdaa855b949984938be/FLAG91cd96654 [2019-11-24 22:23:16,466 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 22:23:16,468 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2n_append_equal.i [2019-11-24 22:23:16,506 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3726b5660/c694a340ee814cdaa855b949984938be/FLAG91cd96654 [2019-11-24 22:23:16,545 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3726b5660/c694a340ee814cdaa855b949984938be [2019-11-24 22:23:16,551 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 22:23:16,554 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-24 22:23:16,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 22:23:16,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 22:23:16,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 22:23:16,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:23:16" (1/1) ... [2019-11-24 22:23:16,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f39a4a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:16, skipping insertion in model container [2019-11-24 22:23:16,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:23:16" (1/1) ... [2019-11-24 22:23:16,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 22:23:16,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 22:23:17,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 22:23:17,643 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 22:23:17,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 22:23:17,929 INFO L208 MainTranslator]: Completed translation [2019-11-24 22:23:17,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:17 WrapperNode [2019-11-24 22:23:17,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 22:23:17,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 22:23:17,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 22:23:17,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 22:23:17,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:17" (1/1) ... [2019-11-24 22:23:17,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:17" (1/1) ... [2019-11-24 22:23:18,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:17" (1/1) ... [2019-11-24 22:23:18,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:17" (1/1) ... [2019-11-24 22:23:18,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:17" (1/1) ... [2019-11-24 22:23:18,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:17" (1/1) ... [2019-11-24 22:23:18,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:17" (1/1) ... [2019-11-24 22:23:18,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 22:23:18,150 INFO L168 Benchmark]: Toolchain (without parser) took 1586.13 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 966.8 MB in the end (delta: -5.1 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-24 22:23:18,151 INFO L168 Benchmark]: CDTParser took 0.92 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 22:23:18,161 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1371.31 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 972.5 MB in the end (delta: -10.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-24 22:23:18,166 INFO L168 Benchmark]: Boogie Preprocessor took 205.87 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 22:23:18,169 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.92 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 1371.31 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 972.5 MB in the end (delta: -10.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 205.87 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 22:23:22,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 22:23:22,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 22:23:22,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 22:23:22,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 22:23:22,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 22:23:22,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 22:23:22,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 22:23:22,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 22:23:22,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 22:23:22,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 22:23:22,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 22:23:22,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 22:23:22,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 22:23:22,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 22:23:22,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 22:23:22,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 22:23:22,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 22:23:22,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 22:23:22,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 22:23:22,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 22:23:22,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 22:23:22,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 22:23:22,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 22:23:22,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 22:23:22,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 22:23:22,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 22:23:22,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 22:23:22,278 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 22:23:22,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 22:23:22,281 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 22:23:22,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 22:23:22,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 22:23:22,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 22:23:22,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 22:23:22,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 22:23:22,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 22:23:22,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 22:23:22,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 22:23:22,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 22:23:22,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 22:23:22,304 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-24 22:23:22,342 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 22:23:22,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 22:23:22,348 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-24 22:23:22,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-24 22:23:22,351 INFO L138 SettingsManager]: * Use SBE=true [2019-11-24 22:23:22,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 22:23:22,352 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 22:23:22,352 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-24 22:23:22,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 22:23:22,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 22:23:22,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 22:23:22,355 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-24 22:23:22,356 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-24 22:23:22,356 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-24 22:23:22,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 22:23:22,359 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-24 22:23:22,359 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-24 22:23:22,360 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-24 22:23:22,360 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 22:23:22,360 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-24 22:23:22,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 22:23:22,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-24 22:23:22,361 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 22:23:22,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 22:23:22,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 22:23:22,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 22:23:22,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 22:23:22,365 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-24 22:23:22,365 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-24 22:23:22,365 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 22:23:22,367 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 -> a4f285607323e922caa9bbc912c8526475badf88 [2019-11-24 22:23:22,927 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 22:23:22,958 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 22:23:22,965 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 22:23:22,969 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 22:23:22,970 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 22:23:22,972 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-simple/dll2n_append_equal.i [2019-11-24 22:23:23,121 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a848984ba/84e1025372294f2a9a44b594a55bcf45/FLAGb8b6d6cd2 [2019-11-24 22:23:24,376 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 22:23:24,377 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2n_append_equal.i [2019-11-24 22:23:24,437 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a848984ba/84e1025372294f2a9a44b594a55bcf45/FLAGb8b6d6cd2 [2019-11-24 22:23:24,458 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a848984ba/84e1025372294f2a9a44b594a55bcf45 [2019-11-24 22:23:24,465 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 22:23:24,467 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-24 22:23:24,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 22:23:24,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 22:23:24,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 22:23:24,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:23:24" (1/1) ... [2019-11-24 22:23:24,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43cf8e6b 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 22:23:24,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:23:24" (1/1) ... [2019-11-24 22:23:24,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 22:23:24,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 22:23:25,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 22:23:25,579 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 22:23:25,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 22:23:25,875 INFO L208 MainTranslator]: Completed translation [2019-11-24 22:23:25,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:23:25 WrapperNode [2019-11-24 22:23:25,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 22:23:25,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 22:23:25,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 22:23:25,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 22:23:25,904 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 22:23:25,904 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 22:23:25,957 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 22:23:25,958 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 22:23:26,025 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 22:23:26,036 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 22:23:26,051 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 22:23:26,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 22:23:26,078 INFO L168 Benchmark]: Toolchain (without parser) took 1603.98 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 966.8 MB in the end (delta: -5.1 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-24 22:23:26,078 INFO L168 Benchmark]: CDTParser took 5.01 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 22:23:26,085 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1394.66 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 972.5 MB in the end (delta: -10.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. [2019-11-24 22:23:26,094 INFO L168 Benchmark]: Boogie Preprocessor took 189.98 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 22:23:26,101 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 5.01 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 1394.66 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 972.5 MB in the end (delta: -10.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 189.98 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...