./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/termination-crafted/NestedRecursion_1a-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 65d6cd23 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/termination-crafted/NestedRecursion_1a-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-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 64bit --witnessprinter.graph.data.programhash ce492abcc29ddbc9795671b095b6bfaf5bfc547b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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/termination-crafted/NestedRecursion_1a-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-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 64bit --witnessprinter.graph.data.programhash ce492abcc29ddbc9795671b095b6bfaf5bfc547b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-65d6cd2 [2019-11-26 00:28:51,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 00:28:51,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 00:28:51,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 00:28:51,600 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 00:28:51,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 00:28:51,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 00:28:51,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 00:28:51,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 00:28:51,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 00:28:51,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 00:28:51,650 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 00:28:51,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 00:28:51,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 00:28:51,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 00:28:51,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 00:28:51,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 00:28:51,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 00:28:51,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 00:28:51,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 00:28:51,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 00:28:51,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 00:28:51,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 00:28:51,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 00:28:51,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 00:28:51,714 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 00:28:51,715 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 00:28:51,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 00:28:51,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 00:28:51,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 00:28:51,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 00:28:51,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 00:28:51,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 00:28:51,729 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 00:28:51,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 00:28:51,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 00:28:51,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 00:28:51,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 00:28:51,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 00:28:51,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 00:28:51,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 00:28:51,745 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2019-11-26 00:28:51,784 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 00:28:51,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 00:28:51,791 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 00:28:51,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 00:28:51,792 INFO L138 SettingsManager]: * Use SBE=true [2019-11-26 00:28:51,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 00:28:51,795 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 00:28:51,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 00:28:51,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 00:28:51,796 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-26 00:28:51,797 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-26 00:28:51,798 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-26 00:28:51,798 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 00:28:51,800 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 00:28:51,800 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 00:28:51,800 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 00:28:51,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 00:28:51,801 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 00:28:51,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 00:28:51,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 00:28:51,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 00:28:51,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 00:28:51,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-26 00:28:51,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 00:28:51,808 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce492abcc29ddbc9795671b095b6bfaf5bfc547b [2019-11-26 00:28:52,348 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 00:28:52,365 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 00:28:52,372 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 00:28:52,380 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 00:28:52,381 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 00:28:52,382 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/NestedRecursion_1a-2.c [2019-11-26 00:28:52,540 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f468383a9/913ae22e351d48ae897f27f52d7e715b/FLAG561d38be9 [2019-11-26 00:28:53,519 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 00:28:53,520 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/NestedRecursion_1a-2.c [2019-11-26 00:28:53,538 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f468383a9/913ae22e351d48ae897f27f52d7e715b/FLAG561d38be9 [2019-11-26 00:28:53,576 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f468383a9/913ae22e351d48ae897f27f52d7e715b [2019-11-26 00:28:53,584 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 00:28:53,589 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-26 00:28:53,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 00:28:53,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 00:28:53,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 00:28:53,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:28:53" (1/1) ... [2019-11-26 00:28:53,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c48e8ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:53, skipping insertion in model container [2019-11-26 00:28:53,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:28:53" (1/1) ... [2019-11-26 00:28:53,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 00:28:53,670 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-26 00:28:54,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 00:28:54,054 INFO L203 MainTranslator]: Completed pre-run [2019-11-26 00:28:54,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 00:28:54,107 INFO L208 MainTranslator]: Completed translation [2019-11-26 00:28:54,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:54 WrapperNode [2019-11-26 00:28:54,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 00:28:54,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 00:28:54,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 00:28:54,110 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 00:28:54,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:54" (1/1) ... [2019-11-26 00:28:54,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:54" (1/1) ... [2019-11-26 00:28:54,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:54" (1/1) ... [2019-11-26 00:28:54,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:54" (1/1) ... [2019-11-26 00:28:54,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:54" (1/1) ... [2019-11-26 00:28:54,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:54" (1/1) ... [2019-11-26 00:28:54,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:54" (1/1) ... [2019-11-26 00:28:54,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 00:28:54,255 INFO L168 Benchmark]: Toolchain (without parser) took 659.95 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). Peak memory consumption was 20.6 MB. Max. memory is 12.5 GB. [2019-11-26 00:28:54,257 INFO L168 Benchmark]: CDTParser took 0.35 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. [2019-11-26 00:28:54,260 INFO L168 Benchmark]: CACSL2BoogieTranslator took 514.36 ms. Allocated memory is still 1.0 GB. Free memory was 967.4 MB in the beginning and 956.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-26 00:28:54,263 INFO L168 Benchmark]: Boogie Preprocessor took 134.50 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 956.0 MB in the beginning and 991.2 MB in the end (delta: -35.3 MB). Peak memory consumption was 9.2 MB. Max. memory is 12.5 GB. [2019-11-26 00:28:54,276 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 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 514.36 ms. Allocated memory is still 1.0 GB. Free memory was 967.4 MB in the beginning and 956.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 134.50 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 956.0 MB in the beginning and 991.2 MB in the end (delta: -35.3 MB). Peak memory consumption was 9.2 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 0.1.24-65d6cd2 [2019-11-26 00:28:58,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 00:28:58,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 00:28:58,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 00:28:58,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 00:28:58,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 00:28:58,189 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 00:28:58,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 00:28:58,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 00:28:58,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 00:28:58,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 00:28:58,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 00:28:58,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 00:28:58,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 00:28:58,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 00:28:58,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 00:28:58,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 00:28:58,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 00:28:58,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 00:28:58,263 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 00:28:58,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 00:28:58,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 00:28:58,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 00:28:58,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 00:28:58,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 00:28:58,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 00:28:58,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 00:28:58,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 00:28:58,298 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 00:28:58,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 00:28:58,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 00:28:58,305 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 00:28:58,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 00:28:58,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 00:28:58,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 00:28:58,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 00:28:58,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 00:28:58,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 00:28:58,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 00:28:58,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 00:28:58,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 00:28:58,325 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-26 00:28:58,365 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 00:28:58,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 00:28:58,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 00:28:58,373 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 00:28:58,373 INFO L138 SettingsManager]: * Use SBE=true [2019-11-26 00:28:58,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 00:28:58,375 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 00:28:58,375 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 00:28:58,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 00:28:58,375 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-26 00:28:58,379 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-26 00:28:58,380 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-26 00:28:58,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 00:28:58,380 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 00:28:58,381 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 00:28:58,381 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 00:28:58,383 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 00:28:58,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 00:28:58,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 00:28:58,384 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 00:28:58,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 00:28:58,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 00:28:58,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 00:28:58,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 00:28:58,388 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-26 00:28:58,388 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 00:28:58,389 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 00:28:58,389 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce492abcc29ddbc9795671b095b6bfaf5bfc547b [2019-11-26 00:28:58,953 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 00:28:58,982 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 00:28:58,989 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 00:28:58,995 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 00:28:58,996 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 00:28:58,997 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/NestedRecursion_1a-2.c [2019-11-26 00:28:59,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37aa85763/1c516579d7294acdbc5802ca786e1ca7/FLAG2041a708f [2019-11-26 00:29:00,079 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 00:29:00,092 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/NestedRecursion_1a-2.c [2019-11-26 00:29:00,108 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37aa85763/1c516579d7294acdbc5802ca786e1ca7/FLAG2041a708f [2019-11-26 00:29:00,257 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37aa85763/1c516579d7294acdbc5802ca786e1ca7 [2019-11-26 00:29:00,264 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 00:29:00,275 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-26 00:29:00,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 00:29:00,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 00:29:00,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 00:29:00,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:29:00" (1/1) ... [2019-11-26 00:29:00,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70bd52e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:29:00, skipping insertion in model container [2019-11-26 00:29:00,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:29:00" (1/1) ... [2019-11-26 00:29:00,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 00:29:00,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-26 00:29:00,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 00:29:00,737 INFO L203 MainTranslator]: Completed pre-run [2019-11-26 00:29:00,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 00:29:00,805 INFO L208 MainTranslator]: Completed translation [2019-11-26 00:29:00,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:29:00 WrapperNode [2019-11-26 00:29:00,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 00:29:00,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 00:29:00,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 00:29:00,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 00:29:00,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:29:00" (1/1) ... [2019-11-26 00:29:00,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:29:00" (1/1) ... [2019-11-26 00:29:00,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:29:00" (1/1) ... [2019-11-26 00:29:00,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:29:00" (1/1) ... [2019-11-26 00:29:00,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:29:00" (1/1) ... [2019-11-26 00:29:00,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:29:00" (1/1) ... [2019-11-26 00:29:00,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:29:00" (1/1) ... [2019-11-26 00:29:00,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 00:29:00,966 INFO L168 Benchmark]: Toolchain (without parser) took 692.98 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 960.2 MB in the beginning and 991.4 MB in the end (delta: -31.2 MB). Peak memory consumption was 20.5 MB. Max. memory is 12.5 GB. [2019-11-26 00:29:00,968 INFO L168 Benchmark]: CDTParser took 2.45 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-26 00:29:00,971 INFO L168 Benchmark]: CACSL2BoogieTranslator took 530.59 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 948.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-26 00:29:00,977 INFO L168 Benchmark]: Boogie Preprocessor took 148.65 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 948.8 MB in the beginning and 991.4 MB in the end (delta: -42.6 MB). Peak memory consumption was 9.0 MB. Max. memory is 12.5 GB. [2019-11-26 00:29:00,986 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.45 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. * CACSL2BoogieTranslator took 530.59 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 948.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 148.65 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 948.8 MB in the beginning and 991.4 MB in the end (delta: -42.6 MB). Peak memory consumption was 9.0 MB. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...