./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/mkfifo-incomplete-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7f575f-8d2d-4cbb-a6a2-42f2fc7bc478/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7f575f-8d2d-4cbb-a6a2-42f2fc7bc478/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7f575f-8d2d-4cbb-a6a2-42f2fc7bc478/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7f575f-8d2d-4cbb-a6a2-42f2fc7bc478/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/mkfifo-incomplete-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7f575f-8d2d-4cbb-a6a2-42f2fc7bc478/bin/utaipan-aC7eJsxGYH/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7f575f-8d2d-4cbb-a6a2-42f2fc7bc478/bin/utaipan-aC7eJsxGYH --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 54cc5a11c5b06099a6895839d6a87d6277d743f89f1abe60a9a3406dc1e126e2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:33:37,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:33:37,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:33:37,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:33:37,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:33:37,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:33:37,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:33:37,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:33:37,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:33:37,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:33:37,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:33:37,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:33:37,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:33:37,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:33:37,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:33:37,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:33:37,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:33:37,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:33:37,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:33:37,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:33:37,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:33:37,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:33:37,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:33:37,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:33:37,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:33:37,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:33:37,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:33:37,652 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:33:37,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:33:37,654 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:33:37,654 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:33:37,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:33:37,657 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:33:37,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:33:37,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:33:37,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:33:37,661 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:33:37,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:33:37,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:33:37,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:33:37,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:33:37,664 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7f575f-8d2d-4cbb-a6a2-42f2fc7bc478/bin/utaipan-aC7eJsxGYH/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-11-03 04:33:37,708 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:33:37,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:33:37,710 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:33:37,710 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:33:37,710 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:33:37,711 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:33:37,711 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:33:37,711 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:33:37,711 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:33:37,712 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:33:37,713 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:33:37,713 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:33:37,713 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:33:37,713 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:33:37,714 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:33:37,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:33:37,715 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-03 04:33:37,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:33:37,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:33:37,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:33:37,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:33:37,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:33:37,716 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-03 04:33:37,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:33:37,716 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:33:37,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:33:37,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:33:37,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:33:37,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:33:37,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:33:37,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:33:37,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:33:37,718 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:33:37,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:33:37,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:33:37,719 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:33:37,719 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:33:37,719 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_worker_vcloud-master_on_vcloud-master/run_dir_1c7f575f-8d2d-4cbb-a6a2-42f2fc7bc478/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7f575f-8d2d-4cbb-a6a2-42f2fc7bc478/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54cc5a11c5b06099a6895839d6a87d6277d743f89f1abe60a9a3406dc1e126e2 [2021-11-03 04:33:38,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:33:38,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:33:38,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:33:38,093 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:33:38,093 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:33:38,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7f575f-8d2d-4cbb-a6a2-42f2fc7bc478/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/busybox-1.22.0/mkfifo-incomplete-1.i [2021-11-03 04:33:38,176 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7f575f-8d2d-4cbb-a6a2-42f2fc7bc478/bin/utaipan-aC7eJsxGYH/data/28705b632/cecf164217fc405eb931e3b069bd6556/FLAGd1f047262 [2021-11-03 04:33:38,852 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:33:38,853 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7f575f-8d2d-4cbb-a6a2-42f2fc7bc478/sv-benchmarks/c/busybox-1.22.0/mkfifo-incomplete-1.i [2021-11-03 04:33:38,885 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7f575f-8d2d-4cbb-a6a2-42f2fc7bc478/bin/utaipan-aC7eJsxGYH/data/28705b632/cecf164217fc405eb931e3b069bd6556/FLAGd1f047262 [2021-11-03 04:33:39,081 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7f575f-8d2d-4cbb-a6a2-42f2fc7bc478/bin/utaipan-aC7eJsxGYH/data/28705b632/cecf164217fc405eb931e3b069bd6556 [2021-11-03 04:33:39,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:33:39,085 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:33:39,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:33:39,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:33:39,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:33:39,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:33:39" (1/1) ... [2021-11-03 04:33:39,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1095aacd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:33:39, skipping insertion in model container [2021-11-03 04:33:39,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:33:39" (1/1) ... [2021-11-03 04:33:39,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:33:39,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:33:40,183 ERROR L326 MainTranslator]: Unsupported Syntax: encountered a call to a var args function, var args are not supported at the moment: bb_perror_msg [2021-11-03 04:33:40,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2d86ef09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:33:40, skipping insertion in model container [2021-11-03 04:33:40,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:33:40,184 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:33:40,186 INFO L168 Benchmark]: Toolchain (without parser) took 1099.55 ms. Allocated memory is still 100.7 MB. Free memory was 55.6 MB in the beginning and 68.4 MB in the end (delta: -12.9 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-11-03 04:33:40,187 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 100.7 MB. Free memory was 76.4 MB in the beginning and 76.3 MB in the end (delta: 55.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:33:40,188 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1096.85 ms. Allocated memory is still 100.7 MB. Free memory was 55.3 MB in the beginning and 68.4 MB in the end (delta: -13.1 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-11-03 04:33:40,190 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 100.7 MB. Free memory was 76.4 MB in the beginning and 76.3 MB in the end (delta: 55.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1096.85 ms. Allocated memory is still 100.7 MB. Free memory was 55.3 MB in the beginning and 68.4 MB in the end (delta: -13.1 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1913]: Unsupported Syntax encountered a call to a var args function, var args are not supported at the moment: bb_perror_msg RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c7f575f-8d2d-4cbb-a6a2-42f2fc7bc478/bin/utaipan-aC7eJsxGYH/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