--- a/src/HOL/Tools/atp_wrapper.ML Thu Feb 19 23:18:28 2009 -0800
+++ b/src/HOL/Tools/atp_wrapper.ML Fri Feb 20 11:04:18 2009 +0100
@@ -78,10 +78,14 @@
val failure = find_failure proof
val success = rc = 0 andalso is_none failure
val message =
- if isSome failure then "Could not prove: " ^ the failure
- else if rc <> 0
- then "Exited with return code " ^ string_of_int rc ^ ": " ^ proof
- else "Try this command: " ^ produce_answer (proof, thm_names, ctxt, goal, subgoalno)
+ if success then "Try this command: " ^ produce_answer (proof, thm_names, ctxt, goal, subgoalno)
+ else "Could not prove."
+ val _ = if isSome failure
+ then Output.debug (fn () => "Sledgehammer failure: " ^ the failure ^ "\nOutput: " ^ proof)
+ else ()
+ val _ = if rc <> 0
+ then Output.debug (fn () => "Sledgehammer exited with return code " ^ string_of_int rc ^ ":\n" ^ proof)
+ else ()
in (success, message) end;