./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/mkfifo-incomplete-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8424926e-d856-4268-bcda-c05e9ba3010f/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8424926e-d856-4268-bcda-c05e9ba3010f/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8424926e-d856-4268-bcda-c05e9ba3010f/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8424926e-d856-4268-bcda-c05e9ba3010f/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/mkfifo-incomplete-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8424926e-d856-4268-bcda-c05e9ba3010f/bin/utaipan-vmNK8stdcF/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8424926e-d856-4268-bcda-c05e9ba3010f/bin/utaipan-vmNK8stdcF --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 1b8d29d2fdd902e339ca249d1b89e96810c3d16df2091bf68778b1ea03a3bccf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:39:01,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:39:01,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:39:01,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:39:01,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:39:01,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:39:01,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:39:01,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:39:01,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:39:01,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:39:01,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:39:01,826 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:39:01,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:39:01,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:39:01,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:39:01,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:39:01,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:39:01,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:39:01,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:39:01,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:39:01,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:39:01,846 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:39:01,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:39:01,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:39:01,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:39:01,854 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:39:01,855 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:39:01,856 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:39:01,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:39:01,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:39:01,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:39:01,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:39:01,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:39:01,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:39:01,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:39:01,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:39:01,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:39:01,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:39:01,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:39:01,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:39:01,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:39:01,874 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8424926e-d856-4268-bcda-c05e9ba3010f/bin/utaipan-vmNK8stdcF/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-11-13 01:39:01,925 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:39:01,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:39:01,927 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:39:01,927 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:39:01,927 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:39:01,928 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:39:01,928 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:39:01,928 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:39:01,929 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:39:01,929 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:39:01,937 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:39:01,937 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:39:01,937 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:39:01,938 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:39:01,938 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:39:01,938 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:39:01,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:39:01,939 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 01:39:01,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:39:01,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:39:01,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:39:01,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:39:01,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:39:01,941 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-13 01:39:01,941 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:39:01,942 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:39:01,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:39:01,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:39:01,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:39:01,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:39:01,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:39:01,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:39:01,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:39:01,944 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:39:01,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:39:01,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:39:01,945 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:39:01,945 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:39:01,946 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_8424926e-d856-4268-bcda-c05e9ba3010f/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8424926e-d856-4268-bcda-c05e9ba3010f/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b8d29d2fdd902e339ca249d1b89e96810c3d16df2091bf68778b1ea03a3bccf [2021-11-13 01:39:02,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:39:02,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:39:02,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:39:02,308 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:39:02,309 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:39:02,311 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8424926e-d856-4268-bcda-c05e9ba3010f/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/busybox-1.22.0/mkfifo-incomplete-2.i [2021-11-13 01:39:02,405 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8424926e-d856-4268-bcda-c05e9ba3010f/bin/utaipan-vmNK8stdcF/data/9964956aa/59f98af350224ba7be5c7f7504a4a255/FLAGde1e9395b [2021-11-13 01:39:03,184 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:39:03,186 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8424926e-d856-4268-bcda-c05e9ba3010f/sv-benchmarks/c/busybox-1.22.0/mkfifo-incomplete-2.i [2021-11-13 01:39:03,231 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8424926e-d856-4268-bcda-c05e9ba3010f/bin/utaipan-vmNK8stdcF/data/9964956aa/59f98af350224ba7be5c7f7504a4a255/FLAGde1e9395b [2021-11-13 01:39:03,275 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8424926e-d856-4268-bcda-c05e9ba3010f/bin/utaipan-vmNK8stdcF/data/9964956aa/59f98af350224ba7be5c7f7504a4a255 [2021-11-13 01:39:03,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:39:03,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:39:03,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:39:03,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:39:03,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:39:03,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:39:03" (1/1) ... [2021-11-13 01:39:03,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@736ecfc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:39:03, skipping insertion in model container [2021-11-13 01:39:03,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:39:03" (1/1) ... [2021-11-13 01:39:03,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:39:03,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:39:04,369 ERROR L326 MainTranslator]: Unsupported Syntax: encountered a call to a var args function, var args are not supported at the moment: bb_perror_msg [2021-11-13 01:39:04,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@194a1a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:39:04, skipping insertion in model container [2021-11-13 01:39:04,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:39:04,371 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 01:39:04,373 INFO L158 Benchmark]: Toolchain (without parser) took 1088.81ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 52.7MB in the beginning and 80.1MB in the end (delta: -27.3MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2021-11-13 01:39:04,374 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 92.3MB. Free memory was 62.7MB in the beginning and 62.7MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:39:04,375 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1085.40ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 52.6MB in the beginning and 80.2MB in the end (delta: -27.6MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2021-11-13 01:39:04,378 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 92.3MB. Free memory was 62.7MB in the beginning and 62.7MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1085.40ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 52.6MB in the beginning and 80.2MB in the end (delta: -27.6MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * 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_8424926e-d856-4268-bcda-c05e9ba3010f/bin/utaipan-vmNK8stdcF/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