./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/bin/ukojak-jW3SillKbg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/bin/ukojak-jW3SillKbg --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 60b3c577fa65970bc54a66f3c47d776002fb71c3b88171fe0d06c29869c37698 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 22:00:45,793 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 22:00:45,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 22:00:45,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 22:00:45,826 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 22:00:45,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 22:00:45,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 22:00:45,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 22:00:45,838 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 22:00:45,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 22:00:45,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 22:00:45,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 22:00:45,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 22:00:45,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 22:00:45,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 22:00:45,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 22:00:45,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 22:00:45,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 22:00:45,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 22:00:45,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 22:00:45,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 22:00:45,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 22:00:45,876 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 22:00:45,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 22:00:45,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 22:00:45,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 22:00:45,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 22:00:45,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 22:00:45,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 22:00:45,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 22:00:45,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 22:00:45,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 22:00:45,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 22:00:45,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 22:00:45,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 22:00:45,899 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 22:00:45,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 22:00:45,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 22:00:45,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 22:00:45,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 22:00:45,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 22:00:45,903 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-21 22:00:45,944 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 22:00:45,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 22:00:45,946 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 22:00:45,946 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 22:00:45,947 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 22:00:45,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 22:00:45,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 22:00:45,947 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 22:00:45,947 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 22:00:45,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 22:00:45,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 22:00:45,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 22:00:45,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 22:00:45,949 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 22:00:45,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 22:00:45,950 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 22:00:45,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 22:00:45,950 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 22:00:45,950 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 22:00:45,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 22:00:45,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 22:00:45,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 22:00:45,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 22:00:45,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 22:00:45,952 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-21 22:00:45,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 22:00:45,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 22:00:45,952 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_90add6fb-32aa-4c1b-aea8-5a547780afdb/bin/ukojak-jW3SillKbg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60b3c577fa65970bc54a66f3c47d776002fb71c3b88171fe0d06c29869c37698 [2022-11-21 22:00:46,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 22:00:46,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 22:00:46,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 22:00:46,268 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 22:00:46,268 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 22:00:46,270 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i [2022-11-21 22:00:49,255 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 22:00:51,293 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 22:00:51,293 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i [2022-11-21 22:00:51,568 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/bin/ukojak-jW3SillKbg/data/ce6287790/553abaf5741b41abbee12c6d4b3a495f/FLAGbb05a32f5 [2022-11-21 22:00:51,583 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/bin/ukojak-jW3SillKbg/data/ce6287790/553abaf5741b41abbee12c6d4b3a495f [2022-11-21 22:00:51,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 22:00:51,587 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 22:00:51,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 22:00:51,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 22:00:51,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 22:00:51,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:00:51" (1/1) ... [2022-11-21 22:00:51,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6673bcc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:00:51, skipping insertion in model container [2022-11-21 22:00:51,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:00:51" (1/1) ... [2022-11-21 22:00:51,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 22:00:52,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 22:01:18,805 WARN L611 FunctionHandler]: implicit declaration of function __builtin___memcpy_chk [2022-11-21 22:01:18,807 WARN L611 FunctionHandler]: implicit declaration of function __builtin___memmove_chk [2022-11-21 22:01:18,809 WARN L611 FunctionHandler]: implicit declaration of function __builtin___mempcpy_chk [2022-11-21 22:01:18,811 WARN L611 FunctionHandler]: implicit declaration of function __builtin___memset_chk [2022-11-21 22:01:18,820 WARN L611 FunctionHandler]: implicit declaration of function __builtin___strcpy_chk [2022-11-21 22:01:18,821 WARN L611 FunctionHandler]: implicit declaration of function __builtin___stpcpy_chk [2022-11-21 22:01:18,822 WARN L611 FunctionHandler]: implicit declaration of function __builtin___strncpy_chk [2022-11-21 22:01:18,829 WARN L611 FunctionHandler]: implicit declaration of function __builtin___strcat_chk [2022-11-21 22:01:18,831 WARN L611 FunctionHandler]: implicit declaration of function __builtin___strncat_chk [2022-11-21 22:01:18,837 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[460213,460226] [2022-11-21 22:01:18,843 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[460699,460712] [2022-11-21 22:01:18,867 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[480526,480539] [2022-11-21 22:01:18,868 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[480582,480595] [2022-11-21 22:01:18,868 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[480667,480680] [2022-11-21 22:01:18,869 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[480725,480738] [2022-11-21 22:01:18,869 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[480783,480796] [2022-11-21 22:01:18,870 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[480964,480977] [2022-11-21 22:01:18,870 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[481133,481146] [2022-11-21 22:01:18,871 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[481280,481293] [2022-11-21 22:01:18,871 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[481336,481349] [2022-11-21 22:01:18,872 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[481388,481401] [2022-11-21 22:01:18,875 WARN L611 FunctionHandler]: implicit declaration of function __builtin___vsnprintf_chk [2022-11-21 22:01:18,884 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[492308,492321] [2022-11-21 22:01:18,891 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[492396,492409] [2022-11-21 22:01:18,895 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[494473,494486] [2022-11-21 22:01:18,899 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[494532,494545] [2022-11-21 22:01:18,901 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[494628,494641] [2022-11-21 22:01:18,902 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[494718,494731] [2022-11-21 22:01:18,905 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[495005,495018] [2022-11-21 22:01:18,906 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[495172,495185] [2022-11-21 22:01:18,907 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[495471,495484] [2022-11-21 22:01:18,909 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[495755,495768] [2022-11-21 22:01:18,910 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[496077,496090] [2022-11-21 22:01:18,910 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[496195,496208] [2022-11-21 22:01:18,913 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[496526,496539] [2022-11-21 22:01:18,914 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[496754,496767] [2022-11-21 22:01:18,914 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[496813,496826] [2022-11-21 22:01:18,915 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[496871,496884] [2022-11-21 22:01:18,917 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[497102,497115] [2022-11-21 22:01:18,917 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[497158,497171] [2022-11-21 22:01:18,919 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[497391,497404] [2022-11-21 22:01:18,919 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[497447,497460] [2022-11-21 22:01:18,920 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[497725,497738] [2022-11-21 22:01:18,921 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[498005,498018] [2022-11-21 22:01:18,922 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[498062,498075] [2022-11-21 22:01:18,922 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[498118,498131] [2022-11-21 22:01:18,923 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[498212,498225] [2022-11-21 22:01:18,924 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[498431,498444] [2022-11-21 22:01:18,925 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[498662,498675] [2022-11-21 22:01:18,925 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[498723,498736] [2022-11-21 22:01:18,925 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[498778,498791] [2022-11-21 22:01:18,926 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[498876,498889] [2022-11-21 22:01:18,927 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[499008,499021] [2022-11-21 22:01:18,927 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[499235,499248] [2022-11-21 22:01:18,928 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[499474,499487] [2022-11-21 22:01:18,929 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[499537,499550] [2022-11-21 22:01:18,929 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[499637,499650] [2022-11-21 22:01:18,930 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[499694,499707] [2022-11-21 22:01:18,930 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[499755,499768] [2022-11-21 22:01:18,931 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[499903,499916] [2022-11-21 22:01:18,933 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[500138,500151] [2022-11-21 22:01:18,934 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[500201,500214] [2022-11-21 22:01:18,935 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[500301,500314] [2022-11-21 22:01:18,935 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[500505,500518] [2022-11-21 22:01:18,936 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[500562,500575] [2022-11-21 22:01:18,937 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[500656,500669] [2022-11-21 22:01:18,938 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[501054,501067] [2022-11-21 22:01:18,939 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[501178,501191] [2022-11-21 22:01:18,939 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[501257,501270] [2022-11-21 22:01:18,941 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[501314,501327] [2022-11-21 22:01:18,942 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[501408,501421] [2022-11-21 22:01:18,942 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[501460,501473] [2022-11-21 22:01:18,943 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[501558,501571] [2022-11-21 22:01:18,944 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[501637,501650] [2022-11-21 22:01:18,944 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[501694,501707] [2022-11-21 22:01:18,945 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[501788,501801] [2022-11-21 22:01:18,945 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[501840,501853] [2022-11-21 22:01:18,946 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[501909,501922] [2022-11-21 22:01:18,947 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[501988,502001] [2022-11-21 22:01:18,948 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[502045,502058] [2022-11-21 22:01:18,948 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[502139,502152] [2022-11-21 22:01:18,949 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[502191,502204] [2022-11-21 22:01:19,090 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[538351,538364] [2022-11-21 22:01:19,091 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i[538499,538512] [2022-11-21 22:01:19,184 WARN L611 FunctionHandler]: implicit declaration of function __builtin_strspn [2022-11-21 22:01:19,207 ERROR L326 MainTranslator]: Unsupported Syntax: encountered a call to a var args function, var args are not supported at the moment: rpl_fcntl [2022-11-21 22:01:19,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@26e3a3f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:01:19, skipping insertion in model container [2022-11-21 22:01:19,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 22:01:19,208 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-21 22:01:19,211 INFO L158 Benchmark]: Toolchain (without parser) took 27623.74ms. Allocated memory was 186.6MB in the beginning and 304.1MB in the end (delta: 117.4MB). Free memory was 114.6MB in the beginning and 57.6MB in the end (delta: 57.0MB). Peak memory consumption was 183.1MB. Max. memory is 16.1GB. [2022-11-21 22:01:19,212 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 134.2MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 22:01:19,214 INFO L158 Benchmark]: CACSL2BoogieTranslator took 27620.09ms. Allocated memory was 186.6MB in the beginning and 304.1MB in the end (delta: 117.4MB). Free memory was 114.6MB in the beginning and 57.6MB in the end (delta: 57.0MB). Peak memory consumption was 183.1MB. Max. memory is 16.1GB. [2022-11-21 22:01:19,219 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 134.2MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 27620.09ms. Allocated memory was 186.6MB in the beginning and 304.1MB in the end (delta: 117.4MB). Free memory was 114.6MB in the beginning and 57.6MB in the end (delta: 57.0MB). Peak memory consumption was 183.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 12185]: Unsupported Syntax encountered a call to a var args function, var args are not supported at the moment: rpl_fcntl 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 Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/bin/ukojak-jW3SillKbg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/bin/ukojak-jW3SillKbg --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 60b3c577fa65970bc54a66f3c47d776002fb71c3b88171fe0d06c29869c37698 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 22:01:21,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 22:01:21,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 22:01:21,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 22:01:21,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 22:01:21,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 22:01:21,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 22:01:21,541 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 22:01:21,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 22:01:21,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 22:01:21,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 22:01:21,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 22:01:21,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 22:01:21,555 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 22:01:21,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 22:01:21,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 22:01:21,565 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 22:01:21,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 22:01:21,568 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 22:01:21,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 22:01:21,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 22:01:21,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 22:01:21,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 22:01:21,582 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 22:01:21,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 22:01:21,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 22:01:21,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 22:01:21,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 22:01:21,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 22:01:21,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 22:01:21,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 22:01:21,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 22:01:21,597 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 22:01:21,598 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 22:01:21,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 22:01:21,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 22:01:21,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 22:01:21,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 22:01:21,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 22:01:21,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 22:01:21,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 22:01:21,604 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2022-11-21 22:01:21,634 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 22:01:21,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 22:01:21,635 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 22:01:21,636 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 22:01:21,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 22:01:21,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 22:01:21,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 22:01:21,637 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 22:01:21,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 22:01:21,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 22:01:21,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 22:01:21,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 22:01:21,640 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 22:01:21,640 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 22:01:21,640 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 22:01:21,640 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 22:01:21,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 22:01:21,641 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 22:01:21,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 22:01:21,641 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 22:01:21,641 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 22:01:21,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 22:01:21,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 22:01:21,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 22:01:21,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 22:01:21,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 22:01:21,643 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-21 22:01:21,643 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 22:01:21,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 22:01:21,643 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2022-11-21 22:01:21,644 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 22:01:21,644 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_90add6fb-32aa-4c1b-aea8-5a547780afdb/bin/ukojak-jW3SillKbg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60b3c577fa65970bc54a66f3c47d776002fb71c3b88171fe0d06c29869c37698 [2022-11-21 22:01:22,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 22:01:22,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 22:01:22,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 22:01:22,060 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 22:01:22,061 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 22:01:22,063 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i [2022-11-21 22:01:25,147 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 22:01:27,263 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 22:01:27,264 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/sv-benchmarks/c/goblint-coreutils/instrumented_interval_tail_comb.i [2022-11-21 22:01:27,743 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/bin/ukojak-jW3SillKbg/data/273e6215a/9ba30de3bbbf40dbb5c7d70d5e12293f/FLAG6b1297505 [2022-11-21 22:01:27,757 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90add6fb-32aa-4c1b-aea8-5a547780afdb/bin/ukojak-jW3SillKbg/data/273e6215a/9ba30de3bbbf40dbb5c7d70d5e12293f [2022-11-21 22:01:27,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 22:01:27,761 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 22:01:27,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 22:01:27,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 22:01:27,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 22:01:27,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:01:27" (1/1) ... [2022-11-21 22:01:27,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77288742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:01:27, skipping insertion in model container [2022-11-21 22:01:27,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:01:27" (1/1) ... [2022-11-21 22:01:27,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 22:01:28,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 22:01:28,931 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitvectorTranslation.constructOverflowCheckForBinaryBitwiseIntegerExpression(BitvectorTranslation.java:1570) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.addIntegerBoundsCheck(CExpressionTranslator.java:1060) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:430) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:152) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.TypeHandler.visit(TypeHandler.java:455) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:183) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-21 22:01:28,941 INFO L158 Benchmark]: Toolchain (without parser) took 1179.67ms. Allocated memory was 134.2MB in the beginning and 211.8MB in the end (delta: 77.6MB). Free memory was 58.5MB in the beginning and 130.3MB in the end (delta: -71.8MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2022-11-21 22:01:28,943 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 71.3MB. Free memory is still 49.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 22:01:28,944 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1177.57ms. Allocated memory was 134.2MB in the beginning and 211.8MB in the end (delta: 77.6MB). Free memory was 58.2MB in the beginning and 130.3MB in the end (delta: -72.1MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2022-11-21 22:01:28,945 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 71.3MB. Free memory is still 49.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1177.57ms. Allocated memory was 134.2MB in the beginning and 211.8MB in the end (delta: 77.6MB). Free memory was 58.2MB in the beginning and 130.3MB in the end (delta: -72.1MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitvectorTranslation.constructOverflowCheckForBinaryBitwiseIntegerExpression(BitvectorTranslation.java:1570) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented.