./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/readlink-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0baffeba-5362-4b48-b9b6-ed3fb306017c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0baffeba-5362-4b48-b9b6-ed3fb306017c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0baffeba-5362-4b48-b9b6-ed3fb306017c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0baffeba-5362-4b48-b9b6-ed3fb306017c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/readlink-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0baffeba-5362-4b48-b9b6-ed3fb306017c/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0baffeba-5362-4b48-b9b6-ed3fb306017c/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 60e87bbb338de49f951bcda640064e8dc1c76515 ................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:18:49,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:18:49,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:18:49,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:18:49,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:18:49,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:18:49,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:18:49,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:18:49,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:18:49,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:18:49,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:18:49,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:18:49,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:18:49,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:18:49,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:18:49,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:18:49,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:18:49,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:18:49,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:18:49,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:18:49,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:18:49,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:18:49,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:18:49,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:18:49,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:18:49,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:18:49,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:18:49,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:18:49,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:18:49,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:18:49,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:18:49,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:18:49,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:18:49,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:18:49,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:18:49,899 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:18:49,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:18:49,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:18:49,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:18:49,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:18:49,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:18:49,902 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0baffeba-5362-4b48-b9b6-ed3fb306017c/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2019-11-26 02:18:49,926 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:18:49,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:18:49,937 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:18:49,937 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:18:49,937 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:18:49,938 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:18:49,938 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:18:49,938 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:18:49,938 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:18:49,939 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:18:49,939 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:18:49,939 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:18:49,939 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:18:49,939 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:18:49,940 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:18:49,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:18:49,940 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 02:18:49,941 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:18:49,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:18:49,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:18:49,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:18:49,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:18:49,942 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-26 02:18:49,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:18:49,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:18:49,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:18:49,943 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:18:49,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:18:49,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:18:49,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:18:49,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:18:49,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:18:49,945 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:18:49,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:18:49,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:18:49,945 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:18:49,946 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_0baffeba-5362-4b48-b9b6-ed3fb306017c/bin/utaipan 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 ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan 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 -> 60e87bbb338de49f951bcda640064e8dc1c76515 [2019-11-26 02:18:50,105 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:18:50,119 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:18:50,122 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:18:50,123 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:18:50,123 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:18:50,124 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0baffeba-5362-4b48-b9b6-ed3fb306017c/bin/utaipan/../../sv-benchmarks/c/busybox-1.22.0/readlink-2.i [2019-11-26 02:18:50,176 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0baffeba-5362-4b48-b9b6-ed3fb306017c/bin/utaipan/data/21cd40c44/3438bd1a5ba147b28644aa90eb7838cb/FLAGbede6d6ec [2019-11-26 02:18:50,772 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:18:50,772 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0baffeba-5362-4b48-b9b6-ed3fb306017c/sv-benchmarks/c/busybox-1.22.0/readlink-2.i [2019-11-26 02:18:50,807 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0baffeba-5362-4b48-b9b6-ed3fb306017c/bin/utaipan/data/21cd40c44/3438bd1a5ba147b28644aa90eb7838cb/FLAGbede6d6ec [2019-11-26 02:18:51,194 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0baffeba-5362-4b48-b9b6-ed3fb306017c/bin/utaipan/data/21cd40c44/3438bd1a5ba147b28644aa90eb7838cb [2019-11-26 02:18:51,196 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:18:51,197 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:18:51,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:18:51,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:18:51,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:18:51,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:18:51" (1/1) ... [2019-11-26 02:18:51,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3684e797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:18:51, skipping insertion in model container [2019-11-26 02:18:51,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:18:51" (1/1) ... [2019-11-26 02:18:51,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:18:51,283 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:18:52,367 ERROR L323 MainTranslator]: Unsupported Syntax: encountered a call to a var args function, var args are not supported at the moment: bb_perror_msg_and_die [2019-11-26 02:18:52,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3ce7dfa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:18:52, skipping insertion in model container [2019-11-26 02:18:52,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:18:52,369 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-11-26 02:18:52,372 INFO L168 Benchmark]: Toolchain (without parser) took 1173.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -158.1 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:18:52,373 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:18:52,374 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1171.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -158.1 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:18:52,376 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1171.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -158.1 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2345]: Unsupported Syntax encountered a call to a var args function, var args are not supported at the moment: bb_perror_msg_and_die RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...