./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version da95e156 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/verifythis/elimination_max_rec_onepoint.c -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 f1dcdcb191cc3a70c9cb7bce226f0263f581cc07 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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/verifythis/elimination_max_rec_onepoint.c -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 f1dcdcb191cc3a70c9cb7bce226f0263f581cc07 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-da95e15 [2019-11-27 11:20:51,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 11:20:51,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 11:20:51,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 11:20:51,080 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 11:20:51,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 11:20:51,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 11:20:51,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 11:20:51,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 11:20:51,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 11:20:51,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 11:20:51,135 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 11:20:51,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 11:20:51,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 11:20:51,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 11:20:51,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 11:20:51,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 11:20:51,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 11:20:51,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 11:20:51,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 11:20:51,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 11:20:51,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 11:20:51,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 11:20:51,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 11:20:51,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 11:20:51,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 11:20:51,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 11:20:51,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 11:20:51,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 11:20:51,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 11:20:51,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 11:20:51,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 11:20:51,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 11:20:51,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 11:20:51,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 11:20:51,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 11:20:51,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 11:20:51,223 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 11:20:51,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 11:20:51,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 11:20:51,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 11:20:51,231 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-27 11:20:51,272 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 11:20:51,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 11:20:51,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 11:20:51,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 11:20:51,279 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 11:20:51,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 11:20:51,282 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 11:20:51,282 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-27 11:20:51,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 11:20:51,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 11:20:51,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 11:20:51,287 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-27 11:20:51,287 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-27 11:20:51,288 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-27 11:20:51,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 11:20:51,288 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-27 11:20:51,289 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 11:20:51,289 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 11:20:51,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 11:20:51,292 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 11:20:51,292 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 11:20:51,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 11:20:51,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 11:20:51,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 11:20:51,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 11:20:51,294 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 11:20:51,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 11:20:51,295 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 -> f1dcdcb191cc3a70c9cb7bce226f0263f581cc07 [2019-11-27 11:20:51,970 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 11:20:52,001 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 11:20:52,009 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 11:20:52,011 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 11:20:52,015 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 11:20:52,016 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2019-11-27 11:20:52,175 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1aa491fee/54b7dfd163fe4c499d8043db37d8729d/FLAG054818345 [2019-11-27 11:20:53,321 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 11:20:53,322 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2019-11-27 11:20:53,341 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1aa491fee/54b7dfd163fe4c499d8043db37d8729d/FLAG054818345 [2019-11-27 11:20:53,388 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1aa491fee/54b7dfd163fe4c499d8043db37d8729d [2019-11-27 11:20:53,397 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 11:20:53,401 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-27 11:20:53,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 11:20:53,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 11:20:53,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 11:20:53,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:20:53" (1/1) ... [2019-11-27 11:20:53,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@589a563a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:53, skipping insertion in model container [2019-11-27 11:20:53,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:20:53" (1/1) ... [2019-11-27 11:20:53,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 11:20:53,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 11:20:53,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 11:20:54,011 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 11:20:54,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 11:20:54,189 INFO L208 MainTranslator]: Completed translation [2019-11-27 11:20:54,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:54 WrapperNode [2019-11-27 11:20:54,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 11:20:54,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 11:20:54,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 11:20:54,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 11:20:54,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:54" (1/1) ... [2019-11-27 11:20:54,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:54" (1/1) ... [2019-11-27 11:20:54,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:54" (1/1) ... [2019-11-27 11:20:54,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:54" (1/1) ... [2019-11-27 11:20:54,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:54" (1/1) ... [2019-11-27 11:20:54,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:54" (1/1) ... [2019-11-27 11:20:54,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:20:54" (1/1) ... [2019-11-27 11:20:54,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 11:20:54,315 INFO L168 Benchmark]: Toolchain (without parser) took 911.24 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 967.4 MB in the beginning and 991.2 MB in the end (delta: -23.8 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 11:20:54,317 INFO L168 Benchmark]: CDTParser took 1.77 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 11:20:54,331 INFO L168 Benchmark]: CACSL2BoogieTranslator took 784.24 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 967.4 MB in the beginning and 997.0 MB in the end (delta: -29.5 MB). Peak memory consumption was 20.6 MB. Max. memory is 12.5 GB. [2019-11-27 11:20:54,332 INFO L168 Benchmark]: Boogie Preprocessor took 115.15 ms. Allocated memory is still 1.0 GB. Free memory was 997.0 MB in the beginning and 991.2 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 11:20:54,343 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.77 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 784.24 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 967.4 MB in the beginning and 997.0 MB in the end (delta: -29.5 MB). Peak memory consumption was 20.6 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 115.15 ms. Allocated memory is still 1.0 GB. Free memory was 997.0 MB in the beginning and 991.2 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-da95e15 [2019-11-27 11:20:58,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 11:20:58,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 11:20:58,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 11:20:58,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 11:20:58,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 11:20:58,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 11:20:58,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 11:20:58,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 11:20:58,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 11:20:58,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 11:20:58,342 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 11:20:58,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 11:20:58,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 11:20:58,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 11:20:58,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 11:20:58,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 11:20:58,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 11:20:58,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 11:20:58,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 11:20:58,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 11:20:58,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 11:20:58,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 11:20:58,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 11:20:58,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 11:20:58,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 11:20:58,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 11:20:58,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 11:20:58,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 11:20:58,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 11:20:58,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 11:20:58,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 11:20:58,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 11:20:58,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 11:20:58,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 11:20:58,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 11:20:58,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 11:20:58,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 11:20:58,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 11:20:58,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 11:20:58,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 11:20:58,444 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-27 11:20:58,490 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 11:20:58,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 11:20:58,497 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 11:20:58,497 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 11:20:58,498 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 11:20:58,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 11:20:58,500 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 11:20:58,501 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-27 11:20:58,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 11:20:58,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 11:20:58,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 11:20:58,505 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-27 11:20:58,505 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-27 11:20:58,506 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-27 11:20:58,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 11:20:58,508 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-27 11:20:58,508 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 11:20:58,509 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 11:20:58,509 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 11:20:58,509 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 11:20:58,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 11:20:58,511 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 11:20:58,511 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 11:20:58,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 11:20:58,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 11:20:58,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 11:20:58,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 11:20:58,515 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 11:20:58,515 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 11:20:58,516 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 11:20:58,517 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 -> f1dcdcb191cc3a70c9cb7bce226f0263f581cc07 [2019-11-27 11:20:59,180 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 11:20:59,213 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 11:20:59,222 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 11:20:59,226 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 11:20:59,227 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 11:20:59,232 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2019-11-27 11:20:59,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70e71a62b/d4d5c7be4f654a51b3b0de22885a2fa9/FLAG4f31b75b3 [2019-11-27 11:21:00,500 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 11:21:00,501 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2019-11-27 11:21:00,516 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70e71a62b/d4d5c7be4f654a51b3b0de22885a2fa9/FLAG4f31b75b3 [2019-11-27 11:21:00,562 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70e71a62b/d4d5c7be4f654a51b3b0de22885a2fa9 [2019-11-27 11:21:00,576 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 11:21:00,581 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-27 11:21:00,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 11:21:00,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 11:21:00,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 11:21:00,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:21:00" (1/1) ... [2019-11-27 11:21:00,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b93ca5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:00, skipping insertion in model container [2019-11-27 11:21:00,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:21:00" (1/1) ... [2019-11-27 11:21:00,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 11:21:00,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 11:21:01,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 11:21:01,226 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 11:21:01,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 11:21:01,465 INFO L208 MainTranslator]: Completed translation [2019-11-27 11:21:01,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:01 WrapperNode [2019-11-27 11:21:01,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 11:21:01,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 11:21:01,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 11:21:01,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 11:21:01,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:01" (1/1) ... [2019-11-27 11:21:01,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:01" (1/1) ... [2019-11-27 11:21:01,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:01" (1/1) ... [2019-11-27 11:21:01,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:01" (1/1) ... [2019-11-27 11:21:01,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:01" (1/1) ... [2019-11-27 11:21:01,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:01" (1/1) ... [2019-11-27 11:21:01,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:21:01" (1/1) ... [2019-11-27 11:21:01,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 11:21:01,600 INFO L168 Benchmark]: Toolchain (without parser) took 1018.38 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 991.1 MB in the end (delta: -29.5 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 11:21:01,605 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 11:21:01,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 883.51 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 996.9 MB in the end (delta: -35.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-27 11:21:01,611 INFO L168 Benchmark]: Boogie Preprocessor took 123.23 ms. Allocated memory is still 1.0 GB. Free memory was 996.9 MB in the beginning and 991.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-27 11:21:01,628 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 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 883.51 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 996.9 MB in the end (delta: -35.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 123.23 ms. Allocated memory is still 1.0 GB. Free memory was 996.9 MB in the beginning and 991.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...