./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--hpsa.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--hpsa.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a32b9ba7e64c33c4de18fe4596f59a69d2bc5e6409d9b71ee9319e6374bc7083 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 02:09:16,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 02:09:16,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 02:09:16,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 02:09:16,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 02:09:16,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 02:09:16,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 02:09:16,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 02:09:16,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 02:09:16,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 02:09:16,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 02:09:16,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 02:09:16,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 02:09:16,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 02:09:16,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 02:09:16,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 02:09:16,747 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 02:09:16,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 02:09:16,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 02:09:16,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 02:09:16,757 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 02:09:16,758 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 02:09:16,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 02:09:16,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 02:09:16,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 02:09:16,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 02:09:16,767 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 02:09:16,768 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 02:09:16,769 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 02:09:16,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 02:09:16,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 02:09:16,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 02:09:16,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 02:09:16,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 02:09:16,780 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 02:09:16,781 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 02:09:16,781 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 02:09:16,782 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 02:09:16,782 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 02:09:16,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 02:09:16,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 02:09:16,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 02:09:16,786 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 02:09:16,821 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 02:09:16,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 02:09:16,822 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 02:09:16,822 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 02:09:16,823 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 02:09:16,823 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 02:09:16,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 02:09:16,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 02:09:16,824 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 02:09:16,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 02:09:16,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 02:09:16,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 02:09:16,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 02:09:16,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 02:09:16,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 02:09:16,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 02:09:16,826 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 02:09:16,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 02:09:16,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 02:09:16,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 02:09:16,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 02:09:16,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 02:09:16,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 02:09:16,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 02:09:16,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 02:09:16,828 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 02:09:16,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 02:09:16,828 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 02:09:16,828 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 02:09:16,829 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 02:09:16,829 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a32b9ba7e64c33c4de18fe4596f59a69d2bc5e6409d9b71ee9319e6374bc7083 [2022-07-14 02:09:17,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 02:09:17,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 02:09:17,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 02:09:17,141 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 02:09:17,142 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 02:09:17,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--hpsa.ko-entry_point.cil.out.i [2022-07-14 02:09:17,223 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/093fccf9b/5862f187e9734ea68c9e409cd08977da/FLAGdce9b8461 [2022-07-14 02:09:18,238 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 02:09:18,239 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--hpsa.ko-entry_point.cil.out.i [2022-07-14 02:09:18,306 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/093fccf9b/5862f187e9734ea68c9e409cd08977da/FLAGdce9b8461 [2022-07-14 02:09:18,602 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/093fccf9b/5862f187e9734ea68c9e409cd08977da [2022-07-14 02:09:18,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 02:09:18,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 02:09:18,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 02:09:18,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 02:09:18,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 02:09:18,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:09:18" (1/1) ... [2022-07-14 02:09:18,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bba64ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:09:18, skipping insertion in model container [2022-07-14 02:09:18,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:09:18" (1/1) ... [2022-07-14 02:09:18,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 02:09:18,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 02:09:23,881 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,883 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,913 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,915 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,925 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,927 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,928 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,938 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,939 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,940 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,940 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,962 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,962 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,963 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,963 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,963 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,964 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,964 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,964 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,964 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,965 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,965 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,965 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,966 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,970 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,971 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,972 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,972 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,973 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:23,973 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:24,752 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--hpsa.ko-entry_point.cil.out.i[543907,543920] [2022-07-14 02:09:24,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 02:09:24,915 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 02:09:26,470 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,471 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,474 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,476 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,478 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,479 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,479 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,481 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,482 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,482 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,483 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,486 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,486 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,486 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,487 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,487 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,487 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,487 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,488 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,488 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,488 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,488 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,489 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,489 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,490 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,490 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,491 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,491 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,491 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,492 WARN L1550 CHandler]: Possible shadowing of function abort [2022-07-14 02:09:26,653 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--hpsa.ko-entry_point.cil.out.i[543907,543920] [2022-07-14 02:09:26,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 02:09:27,081 INFO L208 MainTranslator]: Completed translation [2022-07-14 02:09:27,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:09:27 WrapperNode [2022-07-14 02:09:27,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 02:09:27,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 02:09:27,084 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 02:09:27,084 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 02:09:27,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:09:27" (1/1) ... [2022-07-14 02:09:27,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:09:27" (1/1) ...