./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/verifythis/elimination_max_rec.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 025d5a27 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.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 17d20a29a9e9cc6560e9aa0daac36f5de29f992c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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.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 17d20a29a9e9cc6560e9aa0daac36f5de29f992c ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-025d5a2 [2019-11-26 17:56:06,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 17:56:06,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 17:56:06,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 17:56:06,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 17:56:06,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 17:56:06,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 17:56:06,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 17:56:06,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 17:56:06,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 17:56:06,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 17:56:06,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 17:56:06,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 17:56:06,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 17:56:06,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 17:56:06,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 17:56:06,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 17:56:06,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 17:56:06,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 17:56:06,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 17:56:06,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 17:56:06,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 17:56:06,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 17:56:06,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 17:56:06,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 17:56:06,610 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 17:56:06,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 17:56:06,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 17:56:06,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 17:56:06,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 17:56:06,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 17:56:06,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 17:56:06,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 17:56:06,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 17:56:06,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 17:56:06,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 17:56:06,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 17:56:06,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 17:56:06,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 17:56:06,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 17:56:06,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 17:56:06,643 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-26 17:56:06,685 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 17:56:06,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 17:56:06,691 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 17:56:06,694 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 17:56:06,694 INFO L138 SettingsManager]: * Use SBE=true [2019-11-26 17:56:06,695 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 17:56:06,695 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 17:56:06,695 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 17:56:06,695 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 17:56:06,696 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 17:56:06,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 17:56:06,699 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-26 17:56:06,699 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-26 17:56:06,700 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-26 17:56:06,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 17:56:06,700 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 17:56:06,702 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 17:56:06,702 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 17:56:06,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 17:56:06,705 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 17:56:06,705 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 17:56:06,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 17:56:06,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 17:56:06,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 17:56:06,707 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 17:56:06,707 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-26 17:56:06,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 17:56:06,710 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 -> 17d20a29a9e9cc6560e9aa0daac36f5de29f992c [2019-11-26 17:56:07,288 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 17:56:07,312 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 17:56:07,317 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 17:56:07,321 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 17:56:07,321 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 17:56:07,322 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max_rec.c [2019-11-26 17:56:07,476 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/127e02dd1/9ab5ae4fa0cb4efc8b9c94240c3a9985/FLAG902c16a3a [2019-11-26 17:56:08,553 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 17:56:08,554 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max_rec.c [2019-11-26 17:56:08,568 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/127e02dd1/9ab5ae4fa0cb4efc8b9c94240c3a9985/FLAG902c16a3a [2019-11-26 17:56:08,609 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/127e02dd1/9ab5ae4fa0cb4efc8b9c94240c3a9985 [2019-11-26 17:56:08,620 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 17:56:08,622 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-26 17:56:08,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 17:56:08,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 17:56:08,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 17:56:08,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 05:56:08" (1/1) ... [2019-11-26 17:56:08,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b7d4b86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:08, skipping insertion in model container [2019-11-26 17:56:08,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 05:56:08" (1/1) ... [2019-11-26 17:56:08,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 17:56:08,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-26 17:56:09,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 17:56:09,188 INFO L203 MainTranslator]: Completed pre-run [2019-11-26 17:56:09,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 17:56:09,369 INFO L208 MainTranslator]: Completed translation [2019-11-26 17:56:09,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:09 WrapperNode [2019-11-26 17:56:09,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 17:56:09,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 17:56:09,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 17:56:09,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 17:56:09,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:09" (1/1) ... [2019-11-26 17:56:09,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:09" (1/1) ... [2019-11-26 17:56:09,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:09" (1/1) ... [2019-11-26 17:56:09,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:09" (1/1) ... [2019-11-26 17:56:09,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:09" (1/1) ... [2019-11-26 17:56:09,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:09" (1/1) ... [2019-11-26 17:56:09,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:09" (1/1) ... [2019-11-26 17:56:09,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 17:56:09,499 INFO L168 Benchmark]: Toolchain (without parser) took 871.61 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: -29.4 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-26 17:56:09,501 INFO L168 Benchmark]: CDTParser took 3.05 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. [2019-11-26 17:56:09,515 INFO L168 Benchmark]: CACSL2BoogieTranslator took 747.46 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. [2019-11-26 17:56:09,524 INFO L168 Benchmark]: Boogie Preprocessor took 117.51 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. [2019-11-26 17:56:09,531 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.05 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 747.46 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 117.51 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... ### Bit-precise run ### This is Ultimate 0.1.24-025d5a2 [2019-11-26 17:56:13,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 17:56:13,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 17:56:13,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 17:56:13,353 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 17:56:13,355 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 17:56:13,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 17:56:13,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 17:56:13,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 17:56:13,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 17:56:13,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 17:56:13,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 17:56:13,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 17:56:13,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 17:56:13,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 17:56:13,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 17:56:13,414 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 17:56:13,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 17:56:13,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 17:56:13,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 17:56:13,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 17:56:13,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 17:56:13,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 17:56:13,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 17:56:13,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 17:56:13,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 17:56:13,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 17:56:13,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 17:56:13,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 17:56:13,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 17:56:13,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 17:56:13,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 17:56:13,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 17:56:13,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 17:56:13,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 17:56:13,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 17:56:13,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 17:56:13,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 17:56:13,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 17:56:13,489 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 17:56:13,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 17:56:13,496 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-26 17:56:13,536 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 17:56:13,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 17:56:13,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 17:56:13,546 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 17:56:13,546 INFO L138 SettingsManager]: * Use SBE=true [2019-11-26 17:56:13,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 17:56:13,547 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 17:56:13,547 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 17:56:13,548 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 17:56:13,548 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 17:56:13,549 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 17:56:13,551 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-26 17:56:13,551 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-26 17:56:13,552 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-26 17:56:13,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 17:56:13,554 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 17:56:13,555 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 17:56:13,555 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 17:56:13,555 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 17:56:13,556 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 17:56:13,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 17:56:13,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 17:56:13,557 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 17:56:13,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 17:56:13,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 17:56:13,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 17:56:13,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 17:56:13,561 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-26 17:56:13,562 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 17:56:13,562 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 17:56:13,563 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 -> 17d20a29a9e9cc6560e9aa0daac36f5de29f992c [2019-11-26 17:56:14,115 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 17:56:14,146 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 17:56:14,156 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 17:56:14,158 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 17:56:14,159 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 17:56:14,162 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max_rec.c [2019-11-26 17:56:14,311 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ffd0773b/3bf9a7f51d6f4930b19feb10ef9243c7/FLAG3455f3e16 [2019-11-26 17:56:15,318 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 17:56:15,321 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max_rec.c [2019-11-26 17:56:15,337 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ffd0773b/3bf9a7f51d6f4930b19feb10ef9243c7/FLAG3455f3e16 [2019-11-26 17:56:15,611 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ffd0773b/3bf9a7f51d6f4930b19feb10ef9243c7 [2019-11-26 17:56:15,616 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 17:56:15,620 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-26 17:56:15,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 17:56:15,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 17:56:15,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 17:56:15,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 05:56:15" (1/1) ... [2019-11-26 17:56:15,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f5a3cfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:15, skipping insertion in model container [2019-11-26 17:56:15,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 05:56:15" (1/1) ... [2019-11-26 17:56:15,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 17:56:15,722 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-26 17:56:16,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 17:56:16,184 INFO L203 MainTranslator]: Completed pre-run [2019-11-26 17:56:16,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 17:56:16,374 INFO L208 MainTranslator]: Completed translation [2019-11-26 17:56:16,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:16 WrapperNode [2019-11-26 17:56:16,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 17:56:16,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 17:56:16,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 17:56:16,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 17:56:16,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:16" (1/1) ... [2019-11-26 17:56:16,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:16" (1/1) ... [2019-11-26 17:56:16,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:16" (1/1) ... [2019-11-26 17:56:16,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:16" (1/1) ... [2019-11-26 17:56:16,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:16" (1/1) ... [2019-11-26 17:56:16,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:16" (1/1) ... [2019-11-26 17:56:16,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:16" (1/1) ... [2019-11-26 17:56:16,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 17:56:16,507 INFO L168 Benchmark]: Toolchain (without parser) took 884.54 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 991.0 MB in the end (delta: -29.3 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-26 17:56:16,508 INFO L168 Benchmark]: CDTParser took 0.34 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. [2019-11-26 17:56:16,511 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.42 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 996.8 MB in the end (delta: -35.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. [2019-11-26 17:56:16,513 INFO L168 Benchmark]: Boogie Preprocessor took 124.91 ms. Allocated memory is still 1.0 GB. Free memory was 996.8 MB in the beginning and 991.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-26 17:56:16,529 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 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 744.42 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 996.8 MB in the end (delta: -35.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 124.91 ms. Allocated memory is still 1.0 GB. Free memory was 996.8 MB in the beginning and 991.0 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...