(* Title: HOL/Tools/Sledgehammer/sledgehammer_isar.ML
Author: Jasmin Blanchette, TU Muenchen
Adds "sledgehammer" and related commands to Isabelle/Isar's outer syntax.
*)
signature SLEDGEHAMMER_ISAR =
sig
type params = Sledgehammer.params
val auto : bool Unsynchronized.ref
val atps : string Unsynchronized.ref
val timeout : int Unsynchronized.ref
val full_types : bool Unsynchronized.ref
val default_params : theory -> (string * string) list -> params
val setup : theory -> theory
end;
structure Sledgehammer_Isar : SLEDGEHAMMER_ISAR =
struct
open ATP_Systems
open Sledgehammer_Util
open Sledgehammer
open Sledgehammer_Minimize
val auto = Unsynchronized.ref false
val _ =
ProofGeneralPgip.add_preference Preferences.category_tracing
(Preferences.bool_pref auto "auto-sledgehammer"
"Whether to run Sledgehammer automatically.")
(** Sledgehammer commands **)
val no_relevance_override = {add = [], del = [], only = false}
fun add_relevance_override ns : relevance_override =
{add = ns, del = [], only = false}
fun del_relevance_override ns : relevance_override =
{add = [], del = ns, only = false}
fun only_relevance_override ns : relevance_override =
{add = ns, del = [], only = true}
fun merge_relevance_override_pairwise (r1 : relevance_override)
(r2 : relevance_override) =
{add = #add r1 @ #add r2, del = #del r1 @ #del r2,
only = #only r1 andalso #only r2}
fun merge_relevance_overrides rs =
fold merge_relevance_override_pairwise rs (only_relevance_override [])
(*** parameters ***)
val atps = Unsynchronized.ref ""
val timeout = Unsynchronized.ref 60
val full_types = Unsynchronized.ref false
val _ =
ProofGeneralPgip.add_preference Preferences.category_proof
(Preferences.string_pref atps
"Sledgehammer: ATPs"
"Default automatic provers (separated by whitespace)")
val _ =
ProofGeneralPgip.add_preference Preferences.category_proof
(Preferences.int_pref timeout
"Sledgehammer: Time Limit"
"ATPs will be interrupted after this time (in seconds)")
val _ =
ProofGeneralPgip.add_preference Preferences.category_proof
(Preferences.bool_pref full_types
"Sledgehammer: Full Types" "ATPs will use full type information")
type raw_param = string * string list
val default_default_params =
[("blocking", "false"),
("debug", "false"),
("verbose", "false"),
("overlord", "false"),
("explicit_apply", "false"),
("relevance_thresholds", "45 85"),
("max_relevant", "smart"),
("isar_proof", "false"),
("isar_shrink_factor", "1")]
val alias_params =
[("atp", "atps")]
val negated_alias_params =
[("non_blocking", "blocking"),
("no_debug", "debug"),
("quiet", "verbose"),
("no_overlord", "overlord"),
("partial_types", "full_types"),
("implicit_apply", "explicit_apply"),
("no_isar_proof", "isar_proof")]
val params_for_minimize =
["debug", "verbose", "overlord", "full_types", "isar_proof",
"isar_shrink_factor", "timeout"]
val property_dependent_params = ["atps", "full_types", "timeout"]
fun is_known_raw_param s =
AList.defined (op =) default_default_params s orelse
AList.defined (op =) alias_params s orelse
AList.defined (op =) negated_alias_params s orelse
member (op =) property_dependent_params s orelse s = "expect"
fun check_raw_param (s, _) =
if is_known_raw_param s then ()
else error ("Unknown parameter: " ^ quote s ^ ".")
fun unalias_raw_param (name, value) =
case AList.lookup (op =) alias_params name of
SOME name' => (name', value)
| NONE =>
case AList.lookup (op =) negated_alias_params name of
SOME name' => (name', case value of
["false"] => ["true"]
| ["true"] => ["false"]
| [] => ["false"]
| _ => value)
| NONE => (name, value)
structure Data = Theory_Data(
type T = raw_param list
val empty = default_default_params |> map (apsnd single)
val extend = I
fun merge p : T = AList.merge (op =) (K true) p)
val set_default_raw_param = Data.map o AList.update (op =) o unalias_raw_param
fun default_raw_params thy =
Data.get thy
|> fold (AList.default (op =))
[("atps", [case !atps of "" => default_atps_param_value () | s => s]),
("full_types", [if !full_types then "true" else "false"]),
("timeout", let val timeout = !timeout in
[if timeout <= 0 then "none"
else string_of_int timeout ^ " s"]
end)]
val infinity_time_in_secs = 60 * 60 * 24 * 365
val the_timeout = the_default (Time.fromSeconds infinity_time_in_secs)
fun extract_params auto default_params override_params =
let
val override_params = map unalias_raw_param override_params
val raw_params = rev override_params @ rev default_params
val lookup = Option.map (space_implode " ") o AList.lookup (op =) raw_params
val lookup_string = the_default "" o lookup
fun general_lookup_bool option default_value name =
case lookup name of
SOME s => parse_bool_option option name s
| NONE => default_value
val lookup_bool = the o general_lookup_bool false (SOME false)
val lookup_bool_option = general_lookup_bool true NONE
fun lookup_time name =
case lookup name of
SOME s => parse_time_option name s
| NONE => NONE
fun lookup_int name =
case lookup name of
NONE => 0
| SOME s => case Int.fromString s of
SOME n => n
| NONE => error ("Parameter " ^ quote name ^
" must be assigned an integer value.")
fun lookup_int_pair name =
case lookup name of
NONE => (0, 0)
| SOME s => case s |> space_explode " " |> map Int.fromString of
[SOME n1, SOME n2] => (n1, n2)
| _ => error ("Parameter " ^ quote name ^
"must be assigned a pair of integer values \
\(e.g., \"60 95\")")
fun lookup_int_option name =
case lookup name of
SOME "smart" => NONE
| _ => SOME (lookup_int name)
val blocking = auto orelse lookup_bool "blocking"
val debug = not auto andalso lookup_bool "debug"
val verbose = debug orelse (not auto andalso lookup_bool "verbose")
val overlord = lookup_bool "overlord"
val atps = lookup_string "atps" |> space_explode " " |> auto ? single o hd
val full_types = lookup_bool "full_types"
val explicit_apply = lookup_bool "explicit_apply"
val relevance_thresholds =
lookup_int_pair "relevance_thresholds"
|> pairself (fn n => 0.01 * Real.fromInt n)
val max_relevant = lookup_int_option "max_relevant"
val isar_proof = lookup_bool "isar_proof"
val isar_shrink_factor = Int.max (1, lookup_int "isar_shrink_factor")
val timeout = (if auto then NONE else lookup_time "timeout") |> the_timeout
val expect = lookup_string "expect"
in
{blocking = blocking, debug = debug, verbose = verbose, overlord = overlord,
atps = atps, full_types = full_types, explicit_apply = explicit_apply,
relevance_thresholds = relevance_thresholds, max_relevant = max_relevant,
isar_proof = isar_proof, isar_shrink_factor = isar_shrink_factor,
timeout = timeout, expect = expect}
end
fun get_params auto thy = extract_params auto (default_raw_params thy)
fun default_params thy = get_params false thy o map (apsnd single)
(* Sledgehammer the given subgoal *)
val sledgehammerN = "sledgehammer"
val sledgehammer_paramsN = "sledgehammer_params"
val runN = "run"
val minimizeN = "minimize"
val messagesN = "messages"
val available_atpsN = "available_atps"
val running_atpsN = "running_atps"
val kill_atpsN = "kill_atps"
val refresh_tptpN = "refresh_tptp"
val is_raw_param_relevant_for_minimize =
member (op =) params_for_minimize o fst o unalias_raw_param
fun string_for_raw_param (key, values) =
key ^ (case space_implode " " values of "" => "" | value => " = " ^ value)
fun minimize_command override_params i atp_name fact_names =
sledgehammerN ^ " " ^ minimizeN ^ " [atp = " ^ atp_name ^
(override_params |> filter is_raw_param_relevant_for_minimize
|> implode o map (prefix ", " o string_for_raw_param)) ^
"] (" ^ space_implode " " fact_names ^ ")" ^
(if i = 1 then "" else " " ^ string_of_int i)
fun hammer_away override_params subcommand opt_i relevance_override state =
let
val thy = Proof.theory_of state
val _ = app check_raw_param override_params
in
if subcommand = runN then
let val i = the_default 1 opt_i in
run_sledgehammer (get_params false thy override_params) false i
relevance_override (minimize_command override_params i)
state
|> K ()
end
else if subcommand = minimizeN then
run_minimize (get_params false thy override_params) (the_default 1 opt_i)
(#add relevance_override) state
else if subcommand = messagesN then
messages opt_i
else if subcommand = available_atpsN then
available_atps thy
else if subcommand = running_atpsN then
running_atps ()
else if subcommand = kill_atpsN then
kill_atps ()
else if subcommand = refresh_tptpN then
refresh_systems_on_tptp ()
else
error ("Unknown subcommand: " ^ quote subcommand ^ ".")
end
fun sledgehammer_trans (((subcommand, params), relevance_override), opt_i) =
Toplevel.keep (hammer_away params subcommand opt_i relevance_override
o Toplevel.proof_of)
fun string_for_raw_param (name, value) = name ^ " = " ^ space_implode " " value
fun sledgehammer_params_trans params =
Toplevel.theory
(fold set_default_raw_param params
#> tap (fn thy =>
writeln ("Default parameters for Sledgehammer:\n" ^
(case rev (default_raw_params thy) of
[] => "none"
| params =>
(map check_raw_param params;
params |> map string_for_raw_param
|> sort_strings |> cat_lines)))))
val parse_key = Scan.repeat1 Parse.typ_group >> space_implode " "
val parse_value = Scan.repeat1 Parse.xname
val parse_param = parse_key -- Scan.optional (Parse.$$$ "=" |-- parse_value) []
val parse_params = Scan.optional (Args.bracks (Parse.list parse_param)) []
val parse_fact_refs =
Scan.repeat1 (Scan.unless (Parse.name -- Args.colon) Parse_Spec.xthm)
val parse_relevance_chunk =
(Args.add |-- Args.colon |-- parse_fact_refs >> add_relevance_override)
|| (Args.del |-- Args.colon |-- parse_fact_refs >> del_relevance_override)
|| (parse_fact_refs >> only_relevance_override)
val parse_relevance_override =
Scan.optional (Args.parens (Scan.repeat parse_relevance_chunk
>> merge_relevance_overrides))
no_relevance_override
val parse_sledgehammer_command =
(Scan.optional Parse.short_ident runN -- parse_params
-- parse_relevance_override -- Scan.option Parse.nat) #>> sledgehammer_trans
val parse_sledgehammer_params_command =
parse_params #>> sledgehammer_params_trans
val _ =
Outer_Syntax.improper_command sledgehammerN
"search for first-order proof using automatic theorem provers" Keyword.diag
parse_sledgehammer_command
val _ =
Outer_Syntax.command sledgehammer_paramsN
"set and display the default parameters for Sledgehammer" Keyword.thy_decl
parse_sledgehammer_params_command
fun auto_sledgehammer state =
if not (!auto) then
(false, state)
else
let val thy = Proof.theory_of state in
run_sledgehammer (get_params true thy []) true 1 no_relevance_override
(minimize_command [] 1) state
end
val setup = Auto_Tools.register_tool ("sledgehammer", auto_sledgehammer)
end;