./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/verifythis/tree_del_rec.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 509859d6 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/AutomizerReach.xml -i ../sv-benchmarks/c/verifythis/tree_del_rec.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 42b3e156f78fe4fcf6b35cfd49f93ee3220cf061 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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/AutomizerReach.xml -i ../sv-benchmarks/c/verifythis/tree_del_rec.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 42b3e156f78fe4fcf6b35cfd49f93ee3220cf061 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-509859d [2019-11-27 16:21:59,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:21:59,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:21:59,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:21:59,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:21:59,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:21:59,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:21:59,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:21:59,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:21:59,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:21:59,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:21:59,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:21:59,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:21:59,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:21:59,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:21:59,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:21:59,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:21:59,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:21:59,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:21:59,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:21:59,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:21:59,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:21:59,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:21:59,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:21:59,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:21:59,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:21:59,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:21:59,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:21:59,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:21:59,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:21:59,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:21:59,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:21:59,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:21:59,829 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:21:59,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:21:59,834 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:21:59,835 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:21:59,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:21:59,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:21:59,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:21:59,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:21:59,844 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 16:21:59,886 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:21:59,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:21:59,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:21:59,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:21:59,892 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:21:59,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:21:59,895 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:21:59,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 16:21:59,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:21:59,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:21:59,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:21:59,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:21:59,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:21:59,898 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:21:59,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:21:59,900 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:21:59,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:21:59,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:21:59,901 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:21:59,903 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:21:59,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:21:59,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:21:59,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:21:59,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:21:59,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:21:59,904 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 16:21:59,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 16:21:59,906 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:21:59,906 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 ! call(__VERIFIER_error())) ) 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 -> 42b3e156f78fe4fcf6b35cfd49f93ee3220cf061 [2019-11-27 16:22:00,462 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:22:00,491 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:22:00,494 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:22:00,500 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:22:00,501 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:22:00,507 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/tree_del_rec.c [2019-11-27 16:22:00,666 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f59064106/c9007f91bdc645e99348367644b80d5b/FLAG178bc1d28 [2019-11-27 16:22:01,772 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:22:01,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/tree_del_rec.c [2019-11-27 16:22:01,794 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f59064106/c9007f91bdc645e99348367644b80d5b/FLAG178bc1d28 [2019-11-27 16:22:01,836 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f59064106/c9007f91bdc645e99348367644b80d5b [2019-11-27 16:22:01,844 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:22:01,848 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:22:01,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:22:01,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:22:01,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:22:01,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:22:01" (1/1) ... [2019-11-27 16:22:01,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4915e153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:01, skipping insertion in model container [2019-11-27 16:22:01,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:22:01" (1/1) ... [2019-11-27 16:22:01,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:22:01,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:22:02,375 WARN L1483 CHandler]: Possible shadowing of function min [2019-11-27 16:22:02,378 WARN L1483 CHandler]: Possible shadowing of function min [2019-11-27 16:22:02,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:22:02,576 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:22:02,635 WARN L1483 CHandler]: Possible shadowing of function min [2019-11-27 16:22:02,640 WARN L1483 CHandler]: Possible shadowing of function min [2019-11-27 16:22:02,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:22:02,726 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:22:02,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:02 WrapperNode [2019-11-27 16:22:02,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:22:02,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:22:02,735 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:22:02,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:22:02,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:02" (1/1) ... [2019-11-27 16:22:02,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:02" (1/1) ... [2019-11-27 16:22:02,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:22:02,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:22:02,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:22:02,836 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:22:02,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:02" (1/1) ... [2019-11-27 16:22:02,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:02" (1/1) ... [2019-11-27 16:22:02,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:02" (1/1) ... [2019-11-27 16:22:02,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:02" (1/1) ... [2019-11-27 16:22:02,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:02" (1/1) ... [2019-11-27 16:22:02,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:02" (1/1) ... [2019-11-27 16:22:02,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:02" (1/1) ... [2019-11-27 16:22:02,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:22:02,965 INFO L168 Benchmark]: Toolchain (without parser) took 1104.47 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 984.2 MB in the end (delta: -22.5 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:22:02,966 INFO L168 Benchmark]: CDTParser took 0.43 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 16:22:02,967 INFO L168 Benchmark]: CACSL2BoogieTranslator took 876.79 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 991.3 MB in the end (delta: -29.6 MB). Peak memory consumption was 20.5 MB. Max. memory is 12.5 GB. [2019-11-27 16:22:02,970 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.41 ms. Allocated memory is still 1.0 GB. Free memory is still 991.3 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:22:02,973 INFO L168 Benchmark]: Boogie Preprocessor took 114.81 ms. Allocated memory is still 1.0 GB. Free memory was 991.3 MB in the beginning and 984.2 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 12.5 GB. [2019-11-27 16:22:02,993 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 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 876.79 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 991.3 MB in the end (delta: -29.6 MB). Peak memory consumption was 20.5 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 100.41 ms. Allocated memory is still 1.0 GB. Free memory is still 991.3 MB. There was no memory consumed. Max. memory is 12.5 GB. * Boogie Preprocessor took 114.81 ms. Allocated memory is still 1.0 GB. Free memory was 991.3 MB in the beginning and 984.2 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 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 0.1.24-509859d [2019-11-27 16:22:07,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 16:22:07,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 16:22:07,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 16:22:07,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 16:22:07,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 16:22:07,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 16:22:07,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 16:22:07,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 16:22:07,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 16:22:07,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 16:22:07,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 16:22:07,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 16:22:07,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 16:22:07,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 16:22:07,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 16:22:07,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 16:22:07,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 16:22:07,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 16:22:07,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 16:22:07,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 16:22:07,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 16:22:07,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 16:22:07,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 16:22:07,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 16:22:07,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 16:22:07,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 16:22:07,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 16:22:07,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 16:22:07,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 16:22:07,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 16:22:07,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 16:22:07,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 16:22:07,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 16:22:07,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 16:22:07,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 16:22:07,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 16:22:07,223 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 16:22:07,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 16:22:07,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 16:22:07,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 16:22:07,232 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 16:22:07,271 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 16:22:07,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 16:22:07,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 16:22:07,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 16:22:07,279 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 16:22:07,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 16:22:07,280 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 16:22:07,280 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 16:22:07,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 16:22:07,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 16:22:07,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 16:22:07,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 16:22:07,285 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 16:22:07,286 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 16:22:07,286 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 16:22:07,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 16:22:07,287 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 16:22:07,287 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 16:22:07,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 16:22:07,288 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 16:22:07,288 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 16:22:07,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 16:22:07,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 16:22:07,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 16:22:07,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 16:22:07,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 16:22:07,293 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 16:22:07,293 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 16:22:07,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 16:22:07,294 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 16:22:07,295 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 ! call(__VERIFIER_error())) ) 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 -> 42b3e156f78fe4fcf6b35cfd49f93ee3220cf061 [2019-11-27 16:22:07,865 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 16:22:07,896 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 16:22:07,902 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 16:22:07,911 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 16:22:07,912 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 16:22:07,913 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/tree_del_rec.c [2019-11-27 16:22:08,065 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed897682c/39e95a30fa594a5685ed9c0289ac50f5/FLAG24274dee8 [2019-11-27 16:22:09,140 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 16:22:09,143 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/tree_del_rec.c [2019-11-27 16:22:09,162 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed897682c/39e95a30fa594a5685ed9c0289ac50f5/FLAG24274dee8 [2019-11-27 16:22:09,244 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed897682c/39e95a30fa594a5685ed9c0289ac50f5 [2019-11-27 16:22:09,254 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 16:22:09,256 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 16:22:09,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 16:22:09,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 16:22:09,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 16:22:09,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:22:09" (1/1) ... [2019-11-27 16:22:09,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35e09eca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:09, skipping insertion in model container [2019-11-27 16:22:09,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 04:22:09" (1/1) ... [2019-11-27 16:22:09,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 16:22:09,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 16:22:09,797 WARN L1483 CHandler]: Possible shadowing of function min [2019-11-27 16:22:09,812 WARN L1483 CHandler]: Possible shadowing of function min [2019-11-27 16:22:09,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:22:10,025 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 16:22:10,078 WARN L1483 CHandler]: Possible shadowing of function min [2019-11-27 16:22:10,085 WARN L1483 CHandler]: Possible shadowing of function min [2019-11-27 16:22:10,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 16:22:10,183 INFO L208 MainTranslator]: Completed translation [2019-11-27 16:22:10,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:10 WrapperNode [2019-11-27 16:22:10,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 16:22:10,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 16:22:10,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 16:22:10,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 16:22:10,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:10" (1/1) ... [2019-11-27 16:22:10,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:10" (1/1) ... [2019-11-27 16:22:10,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 16:22:10,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 16:22:10,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 16:22:10,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 16:22:10,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:10" (1/1) ... [2019-11-27 16:22:10,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:10" (1/1) ... [2019-11-27 16:22:10,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:10" (1/1) ... [2019-11-27 16:22:10,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:10" (1/1) ... [2019-11-27 16:22:10,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:10" (1/1) ... [2019-11-27 16:22:10,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:10" (1/1) ... [2019-11-27 16:22:10,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 04:22:10" (1/1) ... [2019-11-27 16:22:10,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 16:22:10,401 INFO L168 Benchmark]: Toolchain (without parser) took 1143.34 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 984.3 MB in the end (delta: -16.8 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:22:10,404 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. [2019-11-27 16:22:10,406 INFO L168 Benchmark]: CACSL2BoogieTranslator took 915.07 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 991.4 MB in the end (delta: -24.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 12.5 GB. [2019-11-27 16:22:10,420 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.57 ms. Allocated memory is still 1.0 GB. Free memory is still 991.4 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 16:22:10,422 INFO L168 Benchmark]: Boogie Preprocessor took 113.03 ms. Allocated memory is still 1.0 GB. Free memory was 991.4 MB in the beginning and 984.3 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 12.5 GB. [2019-11-27 16:22:10,427 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 915.07 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 991.4 MB in the end (delta: -24.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 97.57 ms. Allocated memory is still 1.0 GB. Free memory is still 991.4 MB. There was no memory consumed. Max. memory is 12.5 GB. * Boogie Preprocessor took 113.03 ms. Allocated memory is still 1.0 GB. Free memory was 991.4 MB in the beginning and 984.3 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...