./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3ba758e7-80a7-4d9e-9456-094efb9ca531/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3ba758e7-80a7-4d9e-9456-094efb9ca531/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3ba758e7-80a7-4d9e-9456-094efb9ca531/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3ba758e7-80a7-4d9e-9456-094efb9ca531/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/readlink-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_3ba758e7-80a7-4d9e-9456-094efb9ca531/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3ba758e7-80a7-4d9e-9456-094efb9ca531/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 be0e1c3893e7a0e1140bfa2a019ffb8996e5d2c3 ....................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_3ba758e7-80a7-4d9e-9456-094efb9ca531/bin/utaipan/config using search string *Overflow*64bit*_Bitvector*.epf No suitable settings file found using Overflow*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 18:49:31,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 18:49:31,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 18:49:31,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 18:49:31,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 18:49:31,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 18:49:31,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 18:49:31,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 18:49:31,464 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 18:49:31,465 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 18:49:31,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 18:49:31,467 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 18:49:31,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 18:49:31,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 18:49:31,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 18:49:31,470 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 18:49:31,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 18:49:31,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 18:49:31,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 18:49:31,475 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 18:49:31,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 18:49:31,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 18:49:31,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 18:49:31,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 18:49:31,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 18:49:31,483 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 18:49:31,483 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 18:49:31,484 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 18:49:31,484 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 18:49:31,485 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 18:49:31,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 18:49:31,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 18:49:31,487 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 18:49:31,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 18:49:31,488 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 18:49:31,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 18:49:31,489 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 18:49:31,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 18:49:31,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 18:49:31,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 18:49:31,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 18:49:31,491 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3ba758e7-80a7-4d9e-9456-094efb9ca531/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-12-09 18:49:31,514 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 18:49:31,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 18:49:31,515 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 18:49:31,515 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 18:49:31,515 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 18:49:31,515 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 18:49:31,516 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 18:49:31,516 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 18:49:31,516 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 18:49:31,516 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 18:49:31,516 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 18:49:31,516 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 18:49:31,517 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 18:49:31,517 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 18:49:31,517 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 18:49:31,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 18:49:31,522 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 18:49:31,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 18:49:31,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 18:49:31,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 18:49:31,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 18:49:31,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 18:49:31,523 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-09 18:49:31,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 18:49:31,523 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 18:49:31,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 18:49:31,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 18:49:31,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 18:49:31,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:49:31,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 18:49:31,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 18:49:31,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 18:49:31,524 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 18:49:31,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 18:49:31,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 18:49:31,525 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 18:49:31,525 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 18:49:31,525 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_3ba758e7-80a7-4d9e-9456-094efb9ca531/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3ba758e7-80a7-4d9e-9456-094efb9ca531/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be0e1c3893e7a0e1140bfa2a019ffb8996e5d2c3 [2020-12-09 18:49:31,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 18:49:31,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 18:49:31,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 18:49:31,733 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 18:49:31,734 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 18:49:31,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3ba758e7-80a7-4d9e-9456-094efb9ca531/bin/utaipan/../../sv-benchmarks/c/busybox-1.22.0/readlink-2.i [2020-12-09 18:49:31,775 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3ba758e7-80a7-4d9e-9456-094efb9ca531/bin/utaipan/data/1a000f585/d7ef0f0cc22c44b5a715a6b62e0a4171/FLAG44c6d1449 [2020-12-09 18:49:32,287 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 18:49:32,288 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3ba758e7-80a7-4d9e-9456-094efb9ca531/sv-benchmarks/c/busybox-1.22.0/readlink-2.i [2020-12-09 18:49:32,305 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3ba758e7-80a7-4d9e-9456-094efb9ca531/bin/utaipan/data/1a000f585/d7ef0f0cc22c44b5a715a6b62e0a4171/FLAG44c6d1449 [2020-12-09 18:49:32,762 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3ba758e7-80a7-4d9e-9456-094efb9ca531/bin/utaipan/data/1a000f585/d7ef0f0cc22c44b5a715a6b62e0a4171 [2020-12-09 18:49:32,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 18:49:32,766 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 18:49:32,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 18:49:32,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 18:49:32,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 18:49:32,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:49:32" (1/1) ... [2020-12-09 18:49:32,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c934dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:49:32, skipping insertion in model container [2020-12-09 18:49:32,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:49:32" (1/1) ... [2020-12-09 18:49:32,778 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 18:49:32,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 18:49:33,597 ERROR L326 MainTranslator]: Unsupported Syntax: encountered a call to a var args function, var args are not supported at the moment: bb_perror_msg_and_die [2020-12-09 18:49:33,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5d686c0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:49:33, skipping insertion in model container [2020-12-09 18:49:33,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 18:49:33,598 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-12-09 18:49:33,600 INFO L168 Benchmark]: Toolchain (without parser) took 832.99 ms. Allocated memory is still 115.3 MB. Free memory was 89.2 MB in the beginning and 62.9 MB in the end (delta: 26.3 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-12-09 18:49:33,600 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 83.9 MB. Free memory is still 60.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:49:33,601 INFO L168 Benchmark]: CACSL2BoogieTranslator took 831.18 ms. Allocated memory is still 115.3 MB. Free memory was 88.8 MB in the beginning and 62.9 MB in the end (delta: 25.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-12-09 18:49:33,602 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 83.9 MB. Free memory is still 60.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 831.18 ms. Allocated memory is still 115.3 MB. Free memory was 88.8 MB in the beginning and 62.9 MB in the end (delta: 25.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2359]: 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...