src/HOL/Tools/Sledgehammer/sledgehammer_mash.ML
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(*  Title:      HOL/Tools/Sledgehammer/sledgehammer_mash.ML
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    Author:     Jasmin Blanchette, TU Muenchen
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Sledgehammer's machine-learning-based relevance filter (MaSh).
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*)
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signature SLEDGEHAMMER_MASH =
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sig
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  type stature = ATP_Problem_Generate.stature
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  type fact = Sledgehammer_Fact.fact
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  type fact_override = Sledgehammer_Fact.fact_override
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  type params = Sledgehammer_Provers.params
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  type relevance_fudge = Sledgehammer_Provers.relevance_fudge
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  type prover_result = Sledgehammer_Provers.prover_result
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  val trace : bool Config.T
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  val MaShN : string
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  val mepoN : string
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  val mashN : string
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  val meshN : string
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  val unlearnN : string
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  val learn_isarN : string
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  val learn_atpN : string
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  val relearn_isarN : string
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  val relearn_atpN : string
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  val fact_filters : string list
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  val escape_meta : string -> string
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  val escape_metas : string list -> string
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  val unescape_meta : string -> string
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  val unescape_metas : string -> string list
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  val extract_query : string -> string * string list
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  val nickname_of : thm -> string
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  val suggested_facts : string list -> ('a * thm) list -> ('a * thm) list
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  val mesh_facts :
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    int -> (('a * thm) list * ('a * thm) list) list -> ('a * thm) list
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  val is_likely_tautology_or_too_meta : thm -> bool
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  val theory_ord : theory * theory -> order
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  val thm_ord : thm * thm -> order
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  val goal_of_thm : theory -> thm -> thm
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  val run_prover_for_mash :
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    Proof.context -> params -> string -> fact list -> thm -> prover_result
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  val features_of :
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    Proof.context -> string -> theory -> stature -> term list -> string list
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  val isar_dependencies_of : unit Symtab.table -> thm -> string list
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  val atp_dependencies_of :
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    Proof.context -> params -> string -> bool -> fact list -> unit Symtab.table
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    -> thm -> string list
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  val mash_CLEAR : Proof.context -> unit
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  val mash_ADD :
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    Proof.context -> bool
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    -> (string * string list * string list * string list) list -> unit
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  val mash_QUERY :
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    Proof.context -> bool -> int -> string list * string list -> string list
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  val mash_unlearn : Proof.context -> unit
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  val mash_could_suggest_facts : unit -> bool
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  val mash_can_suggest_facts : Proof.context -> bool
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  val mash_suggest_facts :
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    Proof.context -> params -> string -> int -> term list -> term
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    -> ('a * thm) list -> ('a * thm) list * ('a * thm) list
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  val mash_learn_proof :
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    Proof.context -> params -> string -> term -> ('a * thm) list -> thm list
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    -> unit
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  val mash_learn_facts :
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    Proof.context -> params -> string -> bool -> bool -> Time.time -> fact list
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    -> string
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  val mash_learn : Proof.context -> params -> bool -> unit
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  val relevant_facts :
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    Proof.context -> params -> string -> int -> fact_override -> term list
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    -> term -> fact list -> fact list
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  val kill_learners : unit -> unit
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  val running_learners : unit -> unit
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end;
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structure Sledgehammer_MaSh : SLEDGEHAMMER_MASH =
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struct
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open ATP_Util
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open ATP_Problem_Generate
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open Sledgehammer_Util
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open Sledgehammer_Fact
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open Sledgehammer_Provers
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open Sledgehammer_Minimize
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open Sledgehammer_MePo
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val trace =
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  Attrib.setup_config_bool @{binding sledgehammer_mash_trace} (K false)
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fun trace_msg ctxt msg = if Config.get ctxt trace then tracing (msg ()) else ()
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val MaShN = "MaSh"
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val mepoN = "mepo"
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val mashN = "mash"
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val meshN = "mesh"
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val fact_filters = [meshN, mepoN, mashN]
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val unlearnN = "unlearn"
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val learn_isarN = "learn_isar"
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val learn_atpN = "learn_atp"
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val relearn_isarN = "relearn_isar"
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val relearn_atpN = "relearn_atp"
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fun mash_home () = getenv "MASH_HOME"
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fun mash_state_dir () =
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  getenv "ISABELLE_HOME_USER" ^ "/mash"
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  |> tap (Isabelle_System.mkdir o Path.explode)
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fun mash_state_path () = mash_state_dir () ^ "/state" |> Path.explode
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(*** Isabelle helpers ***)
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fun meta_char c =
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  if Char.isAlphaNum c orelse c = #"_" orelse c = #"." orelse c = #"(" orelse
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     c = #")" orelse c = #"," then
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    String.str c
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  else
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    (* fixed width, in case more digits follow *)
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    "\\" ^ stringN_of_int 3 (Char.ord c)
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fun unmeta_chars accum [] = String.implode (rev accum)
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  | unmeta_chars accum (#"\\" :: d1 :: d2 :: d3 :: cs) =
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    (case Int.fromString (String.implode [d1, d2, d3]) of
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       SOME n => unmeta_chars (Char.chr n :: accum) cs
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     | NONE => "" (* error *))
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  | unmeta_chars _ (#"\\" :: _) = "" (* error *)
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  | unmeta_chars accum (c :: cs) = unmeta_chars (c :: accum) cs
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val escape_meta = String.translate meta_char
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val escape_metas = map escape_meta #> space_implode " "
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val unescape_meta = String.explode #> unmeta_chars []
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val unescape_metas =
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  space_explode " " #> filter_out (curry (op =) "") #> map unescape_meta
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fun extract_query line =
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  case space_explode ":" line of
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    [goal_name, suggs] => (unescape_meta goal_name, unescape_metas suggs)
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  | _ => ("", [])
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fun parent_of_local_thm th =
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  let
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    val thy = th |> Thm.theory_of_thm
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    val facts = thy |> Global_Theory.facts_of
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    val space = facts |> Facts.space_of
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    fun id_of s = #id (Name_Space.the_entry space s)
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    fun max_id (s', _) (s, id) =
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      let val id' = id_of s' in if id > id' then (s, id) else (s', id') end
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  in ("", ~1) |> Facts.fold_static max_id facts |> fst end
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val local_prefix = "local" ^ Long_Name.separator
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fun nickname_of th =
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  let val hint = Thm.get_name_hint th in
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    (* FIXME: There must be a better way to detect local facts. *)
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    case try (unprefix local_prefix) hint of
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      SOME suff =>
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      parent_of_local_thm th ^ Long_Name.separator ^ Long_Name.separator ^ suff
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    | NONE => hint
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  end
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fun suggested_facts suggs facts =
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  let
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    fun add_fact (fact as (_, th)) = Symtab.default (nickname_of th, fact)
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    val tab = Symtab.empty |> fold add_fact facts
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  in map_filter (Symtab.lookup tab) suggs end
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(* Ad hoc score function roughly based on Blanchette's Ringberg 2011 data. *)
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fun score x = Math.pow (1.5, 15.5 - 0.05 * Real.fromInt x) + 15.0
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fun sum_sq_avg [] = 0
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  | sum_sq_avg xs =
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    Real.ceil (100000.0 * fold (curry (op +) o score) xs 0.0) div length xs
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fun mesh_facts max_facts [(selected, unknown)] =
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    take max_facts selected @ take (max_facts - length selected) unknown
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  | mesh_facts max_facts mess =
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    let
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      val mess = mess |> map (apfst (`length))
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      val fact_eq = Thm.eq_thm o pairself snd
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      fun score_in fact ((sel_len, sels), unks) =
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        case find_index (curry fact_eq fact) sels of
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          ~1 => (case find_index (curry fact_eq fact) unks of
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                   ~1 => SOME sel_len
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                 | _ => NONE)
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        | j => SOME j
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      fun score_of fact = mess |> map_filter (score_in fact) |> sum_sq_avg
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      val facts = fold (union fact_eq o take max_facts o snd o fst) mess []
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    in
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      facts |> map (`score_of) |> sort (int_ord o swap o pairself fst)
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            |> map snd |> take max_facts
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    end
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val thy_feature_prefix = "y_"
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val thy_feature_name_of = prefix thy_feature_prefix
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val const_name_of = prefix const_prefix
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val type_name_of = prefix type_const_prefix
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val class_name_of = prefix class_prefix
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fun is_likely_tautology_or_too_meta th =
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  let
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    val is_boring_const = member (op =) atp_widely_irrelevant_consts
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    fun is_boring_bool t =
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      not (exists_Const (not o is_boring_const o fst) t) orelse
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      exists_type (exists_subtype (curry (op =) @{typ prop})) t
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    fun is_boring_prop (@{const Trueprop} $ t) = is_boring_bool t
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      | is_boring_prop (@{const "==>"} $ t $ u) =
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        is_boring_prop t andalso is_boring_prop u
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      | is_boring_prop (Const (@{const_name all}, _) $ (Abs (_, _, t)) $ u) =
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        is_boring_prop t andalso is_boring_prop u
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      | is_boring_prop (Const (@{const_name "=="}, _) $ t $ u) =
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        is_boring_bool t andalso is_boring_bool u
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      | is_boring_prop _ = true
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  in
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    is_boring_prop (prop_of th) andalso not (Thm.eq_thm_prop (@{thm ext}, th))
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  end
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fun theory_ord p =
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  if Theory.eq_thy p then
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    EQUAL
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  else if Theory.subthy p then
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    LESS
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  else if Theory.subthy (swap p) then
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    GREATER
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  else case int_ord (pairself (length o Theory.ancestors_of) p) of
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    EQUAL => string_ord (pairself Context.theory_name p)
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  | order => order
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val thm_ord = theory_ord o pairself theory_of_thm
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val freezeT = Type.legacy_freeze_type
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fun freeze (t $ u) = freeze t $ freeze u
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  | freeze (Abs (s, T, t)) = Abs (s, freezeT T, freeze t)
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  | freeze (Var ((s, _), T)) = Free (s, freezeT T)
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  | freeze (Const (s, T)) = Const (s, freezeT T)
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  | freeze (Free (s, T)) = Free (s, freezeT T)
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  | freeze t = t
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fun goal_of_thm thy = prop_of #> freeze #> cterm_of thy #> Goal.init
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fun run_prover_for_mash ctxt params prover facts goal =
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  let
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    val problem =
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      {state = Proof.init ctxt, goal = goal, subgoal = 1, subgoal_count = 1,
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       facts = facts |> map (apfst (apfst (fn name => name ())))
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                     |> map Untranslated_Fact}
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  in
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    get_minimizing_prover ctxt MaSh (K ()) prover params (K (K (K "")))
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                          problem
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  end
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val bad_types = [@{type_name prop}, @{type_name bool}, @{type_name fun}]
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fun interesting_terms_types_and_classes ctxt prover term_max_depth
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                                        type_max_depth ts =
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  let
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    fun is_bad_const (x as (s, _)) args =
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      member (op =) atp_logical_consts s orelse
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      fst (is_built_in_const_for_prover ctxt prover x args)
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    fun add_classes @{sort type} = I
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      | add_classes S = union (op =) (map class_name_of S)
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    fun do_add_type (Type (s, Ts)) =
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        (not (member (op =) bad_types s) ? insert (op =) (type_name_of s))
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        #> fold do_add_type Ts
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      | do_add_type (TFree (_, S)) = add_classes S
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      | do_add_type (TVar (_, S)) = add_classes S
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    fun add_type T = type_max_depth >= 0 ? do_add_type T
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    fun mk_app s args =
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      if member (op <>) args "" then s ^ "(" ^ space_implode "," args ^ ")"
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      else s
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    fun patternify ~1 _ = ""
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      | patternify depth t =
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        case strip_comb t of
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          (Const (s, _), args) =>
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          mk_app (const_name_of s) (map (patternify (depth - 1)) args)
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        | _ => ""
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    fun add_term_patterns ~1 _ = I
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      | add_term_patterns depth t =
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        insert (op =) (patternify depth t)
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        #> add_term_patterns (depth - 1) t
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    val add_term = add_term_patterns term_max_depth
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    fun add_patterns t =
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      let val (head, args) = strip_comb t in
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        (case head of
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           Const (x as (_, T)) =>
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           not (is_bad_const x args) ? (add_term t #> add_type T)
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         | Free (_, T) => add_type T
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         | Var (_, T) => add_type T
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         | Abs (_, T, body) => add_type T #> add_patterns body
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         | _ => I)
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        #> fold add_patterns args
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      end
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  in [] |> fold add_patterns ts end
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fun is_exists (s, _) = (s = @{const_name Ex} orelse s = @{const_name Ex1})
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val term_max_depth = 1
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val type_max_depth = 1
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(* TODO: Generate type classes for types? *)
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fun features_of ctxt prover thy (scope, status) ts =
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  thy_feature_name_of (Context.theory_name thy) ::
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  interesting_terms_types_and_classes ctxt prover term_max_depth type_max_depth
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                                      ts
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  |> forall is_lambda_free ts ? cons "no_lams"
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  |> forall (not o exists_Const is_exists) ts ? cons "no_skos"
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  |> scope <> Global ? cons "local"
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  |> (case status of
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        General => I
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      | Induction => cons "induction"
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      | Intro => cons "intro"
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      | Inductive => cons "inductive"
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      | Elim => cons "elim"
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      | Simp => cons "simp"
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      | Def => cons "def")
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fun isar_dependencies_of all_facts = thms_in_proof (SOME all_facts)
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val atp_dep_default_max_fact = 50
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fun atp_dependencies_of ctxt (params as {verbose, max_facts, ...}) prover auto
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                        facts all_names th =
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  case isar_dependencies_of all_names th of
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    [] => []
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  | isar_deps =>
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    let
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      val thy = Proof_Context.theory_of ctxt
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      val goal = goal_of_thm thy th
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      val (_, hyp_ts, concl_t) = ATP_Util.strip_subgoal ctxt goal 1
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      val facts = facts |> filter (fn (_, th') => thm_ord (th', th) = LESS)
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      fun fix_name ((_, stature), th) = ((fn () => nickname_of th, stature), th)
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      fun is_dep dep (_, th) = nickname_of th = dep
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      fun add_isar_dep facts dep accum =
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        if exists (is_dep dep) accum then
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          accum
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        else case find_first (is_dep dep) facts of
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          SOME ((name, status), th) => accum @ [((name, status), th)]
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        | NONE => accum (* shouldn't happen *)
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      val facts =
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        facts |> iterative_relevant_facts ctxt params prover
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                     (max_facts |> the_default atp_dep_default_max_fact) NONE
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                     hyp_ts concl_t
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              |> fold (add_isar_dep facts) isar_deps
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              |> map fix_name
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    in
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      if verbose andalso not auto then
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        let val num_facts = length facts in
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          "MaSh: " ^ quote prover ^ " on " ^ quote (nickname_of th) ^
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          " with " ^ string_of_int num_facts ^ " fact" ^ plural_s num_facts ^
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          "."
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          |> Output.urgent_message
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        end
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      else
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        ();
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      case run_prover_for_mash ctxt params prover facts goal of
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        {outcome = NONE, used_facts, ...} =>
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        (if verbose andalso not auto then
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           let val num_facts = length used_facts in
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             "Found proof with " ^ string_of_int num_facts ^ " fact" ^
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             plural_s num_facts ^ "."
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             |> Output.urgent_message
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           end
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         else
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           ();
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         used_facts |> map fst)
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      | _ => isar_deps
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    end
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(*** Low-level communication with MaSh ***)
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fun write_file (xs, f) file =
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  let val path = Path.explode file in
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    File.write path "";
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    xs |> chunk_list 500
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       |> List.app (File.append path o space_implode "" o map f)
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  end
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fun mash_info overlord =
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  if overlord then (getenv "ISABELLE_HOME_USER", "")
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  else (getenv "ISABELLE_TMP", serial_string ())
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fun and_rm_files overlord flags files =
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  if overlord then
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    ""
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  else
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    " && rm -f" ^ flags ^ " -- " ^
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    space_implode " " (map File.shell_quote files)
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fun run_mash ctxt overlord (temp_dir, serial) async core =
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  let
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    val log_file = temp_dir ^ "/mash_log" ^ serial
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    val err_file = temp_dir ^ "/mash_err" ^ serial
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    val command =
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      "(" ^ mash_home () ^ "/mash --quiet --outputDir " ^ mash_state_dir () ^
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      " --log " ^ log_file ^ " " ^ core ^ ") 2>&1 > " ^ err_file ^
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      and_rm_files overlord "" [log_file, err_file] ^
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      (if async then " &" else "")
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   399
  in
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    trace_msg ctxt (fn () =>
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        (if async then "Launching " else "Running ") ^ command);
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    write_file ([], K "") log_file;
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    write_file ([], K "") err_file;
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    Isabelle_System.bash command;
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   405
    if not async then trace_msg ctxt (K "Done") else ()
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   406
  end
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   407
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fun run_mash_commands ctxt overlord save max_suggs write_cmds read_suggs =
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  let
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   410
    val info as (temp_dir, serial) = mash_info overlord
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    val sugg_file = temp_dir ^ "/mash_suggs" ^ serial
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    val cmd_file = temp_dir ^ "/mash_commands" ^ serial
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   413
  in
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    write_file ([], K "") sugg_file;
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   415
    write_file write_cmds cmd_file;
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   416
    run_mash ctxt overlord info false
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             ("--inputFile " ^ cmd_file ^ " --predictions " ^ sugg_file ^
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              " --numberOfPredictions " ^ string_of_int max_suggs ^
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              (if save then " --saveModel" else "") ^
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              (and_rm_files overlord "" [sugg_file, cmd_file]));
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    read_suggs (fn () => File.read_lines (Path.explode sugg_file))
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  end
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   423
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   424
fun str_of_update (name, parents, feats, deps) =
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  "! " ^ escape_meta name ^ ": " ^ escape_metas parents ^ "; " ^
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  escape_metas feats ^ "; " ^ escape_metas deps ^ "\n"
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   427
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   428
fun str_of_query (parents, feats) =
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  "? " ^ escape_metas parents ^ "; " ^ escape_metas feats
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   430
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   431
fun mash_CLEAR ctxt =
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   432
  let val path = mash_state_dir () |> Path.explode in
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   433
    trace_msg ctxt (K "MaSh CLEAR");
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   434
    File.fold_dir (fn file => fn () =>
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   435
                      File.rm (Path.append path (Path.basic file)))
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   436
                  path ()
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   437
  end
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   438
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   439
fun mash_ADD _ _ [] = ()
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   440
  | mash_ADD ctxt overlord upds =
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   441
    (trace_msg ctxt (fn () => "MaSh ADD " ^
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   442
         elide_string 1000 (space_implode " " (map #1 upds)));
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   443
     run_mash_commands ctxt overlord true 0 (upds, str_of_update) (K ()))
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diff changeset
   444
48318
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   445
fun mash_QUERY ctxt overlord max_suggs (query as (_, feats)) =
48314
ee33ba3c0e05 added option to control which fact filter is used
blanchet
parents: 48313
diff changeset
   446
  (trace_msg ctxt (fn () => "MaSh QUERY " ^ space_implode " " feats);
48383
df75b2d7e26a learn command in MaSh
blanchet
parents: 48382
diff changeset
   447
   run_mash_commands ctxt overlord false  max_suggs
48323
7b5f7ca25d17 optimized MaSh output by chunking it
blanchet
parents: 48322
diff changeset
   448
       ([query], str_of_query)
48318
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   449
       (fn suggs => snd (extract_query (List.last (suggs ()))))
48311
3c4e10606567 implemented MaSh QUERY operation
blanchet
parents: 48309
diff changeset
   450
   handle List.Empty => [])
48302
6cf5e58f1185 more implementation work on MaSh
blanchet
parents: 48301
diff changeset
   451
6cf5e58f1185 more implementation work on MaSh
blanchet
parents: 48301
diff changeset
   452
48251
6cdcfbddc077 moved most of MaSh exporter code to Sledgehammer
blanchet
parents: 48249
diff changeset
   453
(*** High-level communication with MaSh ***)
6cdcfbddc077 moved most of MaSh exporter code to Sledgehammer
blanchet
parents: 48249
diff changeset
   454
48321
c552d7f1720b learn from minimized ATP proofs
blanchet
parents: 48320
diff changeset
   455
fun try_graph ctxt when def f =
c552d7f1720b learn from minimized ATP proofs
blanchet
parents: 48320
diff changeset
   456
  f ()
c552d7f1720b learn from minimized ATP proofs
blanchet
parents: 48320
diff changeset
   457
  handle Graph.CYCLES (cycle :: _) =>
c552d7f1720b learn from minimized ATP proofs
blanchet
parents: 48320
diff changeset
   458
         (trace_msg ctxt (fn () =>
c552d7f1720b learn from minimized ATP proofs
blanchet
parents: 48320
diff changeset
   459
              "Cycle involving " ^ commas cycle ^ " when " ^ when); def)
48392
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   460
       | Graph.DUP name =>
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   461
         (trace_msg ctxt (fn () =>
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   462
              "Duplicate fact " ^ quote name ^ " when " ^ when); def)
48321
c552d7f1720b learn from minimized ATP proofs
blanchet
parents: 48320
diff changeset
   463
       | Graph.UNDEF name =>
c552d7f1720b learn from minimized ATP proofs
blanchet
parents: 48320
diff changeset
   464
         (trace_msg ctxt (fn () =>
c552d7f1720b learn from minimized ATP proofs
blanchet
parents: 48320
diff changeset
   465
              "Unknown fact " ^ quote name ^ " when " ^ when); def)
48392
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   466
       | exn =>
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   467
         if Exn.is_interrupt exn then
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   468
           reraise exn
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   469
         else
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   470
           (trace_msg ctxt (fn () =>
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   471
                "Internal error when " ^ when ^ ":\n" ^
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   472
                ML_Compiler.exn_message exn); def)
48321
c552d7f1720b learn from minimized ATP proofs
blanchet
parents: 48320
diff changeset
   473
48390
4147f2bc4442 add versioning to MaSh state + cleanup dead code
blanchet
parents: 48389
diff changeset
   474
type mash_state = {fact_graph : unit Graph.T}
48301
e5c5037a3104 started implementing MaSh client-side I/O
blanchet
parents: 48299
diff changeset
   475
48390
4147f2bc4442 add versioning to MaSh state + cleanup dead code
blanchet
parents: 48389
diff changeset
   476
val empty_state = {fact_graph = Graph.empty}
48301
e5c5037a3104 started implementing MaSh client-side I/O
blanchet
parents: 48299
diff changeset
   477
e5c5037a3104 started implementing MaSh client-side I/O
blanchet
parents: 48299
diff changeset
   478
local
e5c5037a3104 started implementing MaSh client-side I/O
blanchet
parents: 48299
diff changeset
   479
48390
4147f2bc4442 add versioning to MaSh state + cleanup dead code
blanchet
parents: 48389
diff changeset
   480
val version = "*** MaSh 0.0 ***"
4147f2bc4442 add versioning to MaSh state + cleanup dead code
blanchet
parents: 48389
diff changeset
   481
4147f2bc4442 add versioning to MaSh state + cleanup dead code
blanchet
parents: 48389
diff changeset
   482
fun load _ (state as (true, _)) = state
4147f2bc4442 add versioning to MaSh state + cleanup dead code
blanchet
parents: 48389
diff changeset
   483
  | load ctxt _ =
48309
42c05a6c6c1e implemented low-level MaSh ADD operation
blanchet
parents: 48308
diff changeset
   484
    let val path = mash_state_path () in
48302
6cf5e58f1185 more implementation work on MaSh
blanchet
parents: 48301
diff changeset
   485
      (true,
6cf5e58f1185 more implementation work on MaSh
blanchet
parents: 48301
diff changeset
   486
       case try File.read_lines path of
48390
4147f2bc4442 add versioning to MaSh state + cleanup dead code
blanchet
parents: 48389
diff changeset
   487
         SOME (version' :: fact_lines) =>
48302
6cf5e58f1185 more implementation work on MaSh
blanchet
parents: 48301
diff changeset
   488
         let
48322
8a8d71e34297 fixed MaSh state load code so it works even if the facts are read in disorder
blanchet
parents: 48321
diff changeset
   489
           fun add_edge_to name parent =
8a8d71e34297 fixed MaSh state load code so it works even if the facts are read in disorder
blanchet
parents: 48321
diff changeset
   490
             Graph.default_node (parent, ())
8a8d71e34297 fixed MaSh state load code so it works even if the facts are read in disorder
blanchet
parents: 48321
diff changeset
   491
             #> Graph.add_edge (parent, name)
48316
252f45c04042 drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents: 48315
diff changeset
   492
           fun add_fact_line line =
252f45c04042 drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents: 48315
diff changeset
   493
             case extract_query line of
252f45c04042 drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents: 48315
diff changeset
   494
               ("", _) => I (* shouldn't happen *)
252f45c04042 drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents: 48315
diff changeset
   495
             | (name, parents) =>
252f45c04042 drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents: 48315
diff changeset
   496
               Graph.default_node (name, ())
48322
8a8d71e34297 fixed MaSh state load code so it works even if the facts are read in disorder
blanchet
parents: 48321
diff changeset
   497
               #> fold (add_edge_to name) parents
48321
c552d7f1720b learn from minimized ATP proofs
blanchet
parents: 48320
diff changeset
   498
           val fact_graph =
48322
8a8d71e34297 fixed MaSh state load code so it works even if the facts are read in disorder
blanchet
parents: 48321
diff changeset
   499
             try_graph ctxt "loading state" Graph.empty (fn () =>
48390
4147f2bc4442 add versioning to MaSh state + cleanup dead code
blanchet
parents: 48389
diff changeset
   500
                 Graph.empty |> version' = version
4147f2bc4442 add versioning to MaSh state + cleanup dead code
blanchet
parents: 48389
diff changeset
   501
                                ? fold add_fact_line fact_lines)
4147f2bc4442 add versioning to MaSh state + cleanup dead code
blanchet
parents: 48389
diff changeset
   502
         in {fact_graph = fact_graph} end
48304
50e64af9c829 more work on MaSh
blanchet
parents: 48303
diff changeset
   503
       | _ => empty_state)
48302
6cf5e58f1185 more implementation work on MaSh
blanchet
parents: 48301
diff changeset
   504
    end
48249
2bd242c56c90 dummy implementation
blanchet
parents: 48248
diff changeset
   505
48390
4147f2bc4442 add versioning to MaSh state + cleanup dead code
blanchet
parents: 48389
diff changeset
   506
fun save {fact_graph} =
48301
e5c5037a3104 started implementing MaSh client-side I/O
blanchet
parents: 48299
diff changeset
   507
  let
48309
42c05a6c6c1e implemented low-level MaSh ADD operation
blanchet
parents: 48308
diff changeset
   508
    val path = mash_state_path ()
48318
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   509
    fun fact_line_for name parents =
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   510
      escape_meta name ^ ": " ^ escape_metas parents
48316
252f45c04042 drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents: 48315
diff changeset
   511
    val append_fact = File.append path o suffix "\n" oo fact_line_for
48301
e5c5037a3104 started implementing MaSh client-side I/O
blanchet
parents: 48299
diff changeset
   512
  in
48390
4147f2bc4442 add versioning to MaSh state + cleanup dead code
blanchet
parents: 48389
diff changeset
   513
    File.write path (version ^ "\n");
48316
252f45c04042 drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents: 48315
diff changeset
   514
    Graph.fold (fn (name, ((), (parents, _))) => fn () =>
252f45c04042 drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents: 48315
diff changeset
   515
                   append_fact name (Graph.Keys.dest parents))
252f45c04042 drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents: 48315
diff changeset
   516
        fact_graph ()
48301
e5c5037a3104 started implementing MaSh client-side I/O
blanchet
parents: 48299
diff changeset
   517
  end
e5c5037a3104 started implementing MaSh client-side I/O
blanchet
parents: 48299
diff changeset
   518
48302
6cf5e58f1185 more implementation work on MaSh
blanchet
parents: 48301
diff changeset
   519
val global_state =
48381
1b7d798460bb renamed ML structures
blanchet
parents: 48380
diff changeset
   520
  Synchronized.var "Sledgehammer_MaSh.global_state" (false, empty_state)
48301
e5c5037a3104 started implementing MaSh client-side I/O
blanchet
parents: 48299
diff changeset
   521
e5c5037a3104 started implementing MaSh client-side I/O
blanchet
parents: 48299
diff changeset
   522
in
e5c5037a3104 started implementing MaSh client-side I/O
blanchet
parents: 48299
diff changeset
   523
48321
c552d7f1720b learn from minimized ATP proofs
blanchet
parents: 48320
diff changeset
   524
fun mash_map ctxt f =
48390
4147f2bc4442 add versioning to MaSh state + cleanup dead code
blanchet
parents: 48389
diff changeset
   525
  Synchronized.change global_state (load ctxt ##> (f #> tap save))
48302
6cf5e58f1185 more implementation work on MaSh
blanchet
parents: 48301
diff changeset
   526
48321
c552d7f1720b learn from minimized ATP proofs
blanchet
parents: 48320
diff changeset
   527
fun mash_get ctxt =
48390
4147f2bc4442 add versioning to MaSh state + cleanup dead code
blanchet
parents: 48389
diff changeset
   528
  Synchronized.change_result global_state (load ctxt #> `snd)
48302
6cf5e58f1185 more implementation work on MaSh
blanchet
parents: 48301
diff changeset
   529
48332
271a4a6af734 optimize parent computation in MaSh + remove temporary files
blanchet
parents: 48330
diff changeset
   530
fun mash_unlearn ctxt =
48302
6cf5e58f1185 more implementation work on MaSh
blanchet
parents: 48301
diff changeset
   531
  Synchronized.change global_state (fn _ =>
48332
271a4a6af734 optimize parent computation in MaSh + remove temporary files
blanchet
parents: 48330
diff changeset
   532
      (mash_CLEAR ctxt; File.write (mash_state_path ()) "";
48308
89674e5a4d35 make tracing an option
blanchet
parents: 48306
diff changeset
   533
       (true, empty_state)))
48301
e5c5037a3104 started implementing MaSh client-side I/O
blanchet
parents: 48299
diff changeset
   534
e5c5037a3104 started implementing MaSh client-side I/O
blanchet
parents: 48299
diff changeset
   535
end
e5c5037a3104 started implementing MaSh client-side I/O
blanchet
parents: 48299
diff changeset
   536
48318
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   537
fun mash_could_suggest_facts () = mash_home () <> ""
48321
c552d7f1720b learn from minimized ATP proofs
blanchet
parents: 48320
diff changeset
   538
fun mash_can_suggest_facts ctxt =
c552d7f1720b learn from minimized ATP proofs
blanchet
parents: 48320
diff changeset
   539
  not (Graph.is_empty (#fact_graph (mash_get ctxt)))
48249
2bd242c56c90 dummy implementation
blanchet
parents: 48248
diff changeset
   540
48332
271a4a6af734 optimize parent computation in MaSh + remove temporary files
blanchet
parents: 48330
diff changeset
   541
fun parents_wrt_facts facts fact_graph =
48316
252f45c04042 drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents: 48315
diff changeset
   542
  let
48378
9e96486d53ad handle local facts smoothly in MaSh
blanchet
parents: 48377
diff changeset
   543
    val facts = [] |> fold (cons o nickname_of o snd) facts
48330
192444b53e86 speed up MaSh queries
blanchet
parents: 48329
diff changeset
   544
    val tab = Symtab.empty |> fold (fn name => Symtab.update (name, ())) facts
48377
4a11914fd530 fixed explosion when computing accessibility
blanchet
parents: 48332
diff changeset
   545
    fun insert_not_seen seen name =
4a11914fd530 fixed explosion when computing accessibility
blanchet
parents: 48332
diff changeset
   546
      not (member (op =) seen name) ? insert (op =) name
48378
9e96486d53ad handle local facts smoothly in MaSh
blanchet
parents: 48377
diff changeset
   547
    fun parents_of _ parents [] = parents
48377
4a11914fd530 fixed explosion when computing accessibility
blanchet
parents: 48332
diff changeset
   548
      | parents_of seen parents (name :: names) =
48332
271a4a6af734 optimize parent computation in MaSh + remove temporary files
blanchet
parents: 48330
diff changeset
   549
        if Symtab.defined tab name then
48377
4a11914fd530 fixed explosion when computing accessibility
blanchet
parents: 48332
diff changeset
   550
          parents_of (name :: seen) (name :: parents) names
48332
271a4a6af734 optimize parent computation in MaSh + remove temporary files
blanchet
parents: 48330
diff changeset
   551
        else
48377
4a11914fd530 fixed explosion when computing accessibility
blanchet
parents: 48332
diff changeset
   552
          parents_of (name :: seen) parents
4a11914fd530 fixed explosion when computing accessibility
blanchet
parents: 48332
diff changeset
   553
                     (Graph.Keys.fold (insert_not_seen seen)
4a11914fd530 fixed explosion when computing accessibility
blanchet
parents: 48332
diff changeset
   554
                                      (Graph.imm_preds fact_graph name) names)
4a11914fd530 fixed explosion when computing accessibility
blanchet
parents: 48332
diff changeset
   555
  in parents_of [] [] (Graph.maximals fact_graph) end
48316
252f45c04042 drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents: 48315
diff changeset
   556
48318
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   557
(* Generate more suggestions than requested, because some might be thrown out
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   558
   later for various reasons and "meshing" gives better results with some
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   559
   slack. *)
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   560
fun max_suggs_of max_facts = max_facts + Int.min (200, max_facts)
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   561
48320
891a24a48155 improved meshing of MaSh and Meng--Paulson if some MaSh suggestions are cut-off (the common case)
blanchet
parents: 48319
diff changeset
   562
fun is_fact_in_graph fact_graph (_, th) =
48378
9e96486d53ad handle local facts smoothly in MaSh
blanchet
parents: 48377
diff changeset
   563
  can (Graph.get_node fact_graph) (nickname_of th)
48320
891a24a48155 improved meshing of MaSh and Meng--Paulson if some MaSh suggestions are cut-off (the common case)
blanchet
parents: 48319
diff changeset
   564
48318
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   565
fun mash_suggest_facts ctxt ({overlord, ...} : params) prover max_facts hyp_ts
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   566
                       concl_t facts =
48301
e5c5037a3104 started implementing MaSh client-side I/O
blanchet
parents: 48299
diff changeset
   567
  let
48302
6cf5e58f1185 more implementation work on MaSh
blanchet
parents: 48301
diff changeset
   568
    val thy = Proof_Context.theory_of ctxt
48321
c552d7f1720b learn from minimized ATP proofs
blanchet
parents: 48320
diff changeset
   569
    val fact_graph = #fact_graph (mash_get ctxt)
48332
271a4a6af734 optimize parent computation in MaSh + remove temporary files
blanchet
parents: 48330
diff changeset
   570
    val parents = parents_wrt_facts facts fact_graph
48385
2779dea0b1e0 added locality as a MaSh feature
blanchet
parents: 48384
diff changeset
   571
    val feats = features_of ctxt prover thy (Local, General) (concl_t :: hyp_ts)
48318
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   572
    val suggs =
48320
891a24a48155 improved meshing of MaSh and Meng--Paulson if some MaSh suggestions are cut-off (the common case)
blanchet
parents: 48319
diff changeset
   573
      if Graph.is_empty fact_graph then []
891a24a48155 improved meshing of MaSh and Meng--Paulson if some MaSh suggestions are cut-off (the common case)
blanchet
parents: 48319
diff changeset
   574
      else mash_QUERY ctxt overlord (max_suggs_of max_facts) (parents, feats)
891a24a48155 improved meshing of MaSh and Meng--Paulson if some MaSh suggestions are cut-off (the common case)
blanchet
parents: 48319
diff changeset
   575
    val selected = facts |> suggested_facts suggs
891a24a48155 improved meshing of MaSh and Meng--Paulson if some MaSh suggestions are cut-off (the common case)
blanchet
parents: 48319
diff changeset
   576
    val unknown = facts |> filter_out (is_fact_in_graph fact_graph)
891a24a48155 improved meshing of MaSh and Meng--Paulson if some MaSh suggestions are cut-off (the common case)
blanchet
parents: 48319
diff changeset
   577
  in (selected, unknown) end
48249
2bd242c56c90 dummy implementation
blanchet
parents: 48248
diff changeset
   578
48316
252f45c04042 drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents: 48315
diff changeset
   579
fun update_fact_graph ctxt (name, parents, feats, deps) (upds, graph) =
252f45c04042 drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents: 48315
diff changeset
   580
  let
252f45c04042 drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents: 48315
diff changeset
   581
    fun maybe_add_from from (accum as (parents, graph)) =
48321
c552d7f1720b learn from minimized ATP proofs
blanchet
parents: 48320
diff changeset
   582
      try_graph ctxt "updating graph" accum (fn () =>
c552d7f1720b learn from minimized ATP proofs
blanchet
parents: 48320
diff changeset
   583
          (from :: parents, Graph.add_edge_acyclic (from, name) graph))
c552d7f1720b learn from minimized ATP proofs
blanchet
parents: 48320
diff changeset
   584
    val graph = graph |> Graph.default_node (name, ())
48316
252f45c04042 drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents: 48315
diff changeset
   585
    val (parents, graph) = ([], graph) |> fold maybe_add_from parents
252f45c04042 drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents: 48315
diff changeset
   586
    val (deps, graph) = ([], graph) |> fold maybe_add_from deps
252f45c04042 drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents: 48315
diff changeset
   587
  in ((name, parents, feats, deps) :: upds, graph) end
48306
e699f754d9f7 better zipping of MaSh facts
blanchet
parents: 48305
diff changeset
   588
48384
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   589
val learn_timeout_slack = 2.0
48318
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   590
48384
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   591
fun launch_thread timeout task =
48383
df75b2d7e26a learn command in MaSh
blanchet
parents: 48382
diff changeset
   592
  let
48384
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   593
    val hard_timeout = time_mult learn_timeout_slack timeout
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   594
    val birth_time = Time.now ()
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   595
    val death_time = Time.+ (birth_time, hard_timeout)
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   596
    val desc = ("machine learner for Sledgehammer", "")
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   597
  in Async_Manager.launch MaShN birth_time death_time desc task end
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   598
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   599
fun mash_learn_proof ctxt ({overlord, timeout, ...} : params) prover t facts
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   600
                     used_ths =
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   601
  if is_smt_prover ctxt prover then
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   602
    ()
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   603
  else
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   604
    launch_thread timeout
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   605
        (fn () =>
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   606
            let
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   607
              val thy = Proof_Context.theory_of ctxt
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   608
              val name = timestamp () ^ " " ^ serial_string () (* freshish *)
48385
2779dea0b1e0 added locality as a MaSh feature
blanchet
parents: 48384
diff changeset
   609
              val feats = features_of ctxt prover thy (Local, General) [t]
48384
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   610
              val deps = used_ths |> map nickname_of
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   611
            in
48390
4147f2bc4442 add versioning to MaSh state + cleanup dead code
blanchet
parents: 48389
diff changeset
   612
              mash_map ctxt (fn {fact_graph} =>
48384
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   613
                  let
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   614
                    val parents = parents_wrt_facts facts fact_graph
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   615
                    val upds = [(name, parents, feats, deps)]
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   616
                    val (upds, fact_graph) =
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   617
                      ([], fact_graph) |> fold (update_fact_graph ctxt) upds
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   618
                  in
48390
4147f2bc4442 add versioning to MaSh state + cleanup dead code
blanchet
parents: 48389
diff changeset
   619
                    mash_ADD ctxt overlord upds; {fact_graph = fact_graph}
48384
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   620
                  end);
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   621
              (true, "")
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   622
            end)
48383
df75b2d7e26a learn command in MaSh
blanchet
parents: 48382
diff changeset
   623
48392
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   624
fun sendback sub =
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   625
  Markup.markup Isabelle_Markup.sendback (sledgehammerN ^ " " ^ sub)
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   626
48332
271a4a6af734 optimize parent computation in MaSh + remove temporary files
blanchet
parents: 48330
diff changeset
   627
(* Too many dependencies is a sign that a decision procedure is at work. There
271a4a6af734 optimize parent computation in MaSh + remove temporary files
blanchet
parents: 48330
diff changeset
   628
   isn't much too learn from such proofs. *)
271a4a6af734 optimize parent computation in MaSh + remove temporary files
blanchet
parents: 48330
diff changeset
   629
val max_dependencies = 10
48392
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   630
val commit_timeout = seconds 30.0
48332
271a4a6af734 optimize parent computation in MaSh + remove temporary files
blanchet
parents: 48330
diff changeset
   631
48318
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   632
(* The timeout is understood in a very slack fashion. *)
48392
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   633
fun mash_learn_facts ctxt (params as {debug, verbose, overlord, timeout, ...})
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   634
                     prover auto atp learn_timeout facts =
48304
50e64af9c829 more work on MaSh
blanchet
parents: 48303
diff changeset
   635
  let
48318
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   636
    val timer = Timer.startRealTimer ()
48392
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   637
    fun next_commit_time () =
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   638
      Time.+ (Timer.checkRealTimer timer, commit_timeout)
48390
4147f2bc4442 add versioning to MaSh state + cleanup dead code
blanchet
parents: 48389
diff changeset
   639
    val {fact_graph} = mash_get ctxt
48320
891a24a48155 improved meshing of MaSh and Meng--Paulson if some MaSh suggestions are cut-off (the common case)
blanchet
parents: 48319
diff changeset
   640
    val new_facts =
891a24a48155 improved meshing of MaSh and Meng--Paulson if some MaSh suggestions are cut-off (the common case)
blanchet
parents: 48319
diff changeset
   641
      facts |> filter_out (is_fact_in_graph fact_graph)
891a24a48155 improved meshing of MaSh and Meng--Paulson if some MaSh suggestions are cut-off (the common case)
blanchet
parents: 48319
diff changeset
   642
            |> sort (thm_ord o pairself snd)
48392
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   643
    val num_new_facts = length new_facts
48308
89674e5a4d35 make tracing an option
blanchet
parents: 48306
diff changeset
   644
  in
48392
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   645
    "MaShing" ^
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   646
    (if not auto then
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   647
       " " ^ string_of_int num_new_facts ^ " fact" ^
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   648
       plural_s num_new_facts ^
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   649
       (if atp then " (ATP timeout: " ^ string_from_time timeout ^ ")" else "")
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   650
     else
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   651
       "") ^ "..."
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   652
    |> Output.urgent_message;
48308
89674e5a4d35 make tracing an option
blanchet
parents: 48306
diff changeset
   653
    if null new_facts then
48392
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   654
      if verbose orelse not auto then
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   655
        "Nothing to learn.\n\nHint: Try " ^ sendback relearn_isarN ^ " or " ^
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   656
        sendback relearn_atpN ^ "  to learn from scratch."
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   657
      else
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   658
        ""
48308
89674e5a4d35 make tracing an option
blanchet
parents: 48306
diff changeset
   659
    else
48304
50e64af9c829 more work on MaSh
blanchet
parents: 48303
diff changeset
   660
      let
48308
89674e5a4d35 make tracing an option
blanchet
parents: 48306
diff changeset
   661
        val ths = facts |> map snd
48315
82d6e46c673f fixed order of accessibles + other tweaks to MaSh
blanchet
parents: 48314
diff changeset
   662
        val all_names =
48324
3ee5b5589402 speed up tautology/metaness check
blanchet
parents: 48323
diff changeset
   663
          ths |> filter_out is_likely_tautology_or_too_meta
48378
9e96486d53ad handle local facts smoothly in MaSh
blanchet
parents: 48377
diff changeset
   664
              |> map (rpair () o nickname_of)
48316
252f45c04042 drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents: 48315
diff changeset
   665
              |> Symtab.make
48392
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   666
        fun do_commit [] state = state
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   667
          | do_commit upds {fact_graph} =
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   668
            let
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   669
              val (upds, fact_graph) =
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   670
                ([], fact_graph) |> fold (update_fact_graph ctxt) upds
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   671
            in mash_ADD ctxt overlord (rev upds); {fact_graph = fact_graph} end
48332
271a4a6af734 optimize parent computation in MaSh + remove temporary files
blanchet
parents: 48330
diff changeset
   672
        fun trim_deps deps = if length deps > max_dependencies then [] else deps
48392
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   673
        fun commit last upds =
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   674
          (if debug andalso not auto then Output.urgent_message "Committing..."
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   675
           else ();
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   676
           mash_map ctxt (do_commit (rev upds));
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   677
           if not last andalso not auto then
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   678
             let val num_upds = length upds in
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   679
               "Processed " ^ string_of_int num_upds ^ " fact" ^
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   680
               plural_s num_upds ^ " in the last " ^
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   681
               string_from_time commit_timeout ^ "."
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   682
               |> Output.urgent_message
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   683
             end
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   684
           else
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   685
             ())
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   686
        fun do_fact _ (accum as (_, (_, _, _, true))) = accum
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   687
          | do_fact ((_, stature), th)
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   688
                    (upds, (parents, n, next_commit, false)) =
48318
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   689
            let
48378
9e96486d53ad handle local facts smoothly in MaSh
blanchet
parents: 48377
diff changeset
   690
              val name = nickname_of th
48332
271a4a6af734 optimize parent computation in MaSh + remove temporary files
blanchet
parents: 48330
diff changeset
   691
              val feats =
48385
2779dea0b1e0 added locality as a MaSh feature
blanchet
parents: 48384
diff changeset
   692
                features_of ctxt prover (theory_of_thm th) stature [prop_of th]
48392
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   693
              val deps =
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   694
                (if atp then atp_dependencies_of ctxt params prover auto facts
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   695
                 else isar_dependencies_of) all_names th
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   696
                |> trim_deps
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   697
              val upds = (name, parents, feats, deps) :: upds
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   698
              val (upds, next_commit) =
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   699
                if Time.> (Timer.checkRealTimer timer, next_commit) then
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   700
                  (commit false upds; ([], next_commit_time ()))
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   701
                else
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   702
                  (upds, next_commit)
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   703
              val timed_out =
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   704
                Time.> (Timer.checkRealTimer timer, learn_timeout)
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   705
            in (upds, ([name], n + 1, next_commit, timed_out)) end
48332
271a4a6af734 optimize parent computation in MaSh + remove temporary files
blanchet
parents: 48330
diff changeset
   706
        val parents = parents_wrt_facts facts fact_graph
48392
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   707
        val (upds, (_, n, _, _)) =
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   708
          ([], (parents, 0, next_commit_time (), false))
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   709
          |> fold do_fact new_facts
48318
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   710
      in
48392
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   711
        commit true upds;
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   712
        if verbose orelse not auto then
48383
df75b2d7e26a learn command in MaSh
blanchet
parents: 48382
diff changeset
   713
          "Learned " ^ string_of_int n ^ " proof" ^ plural_s n ^
48319
340187063d84 use async manager to manage MaSh learners to make sure they get killed cleanly
blanchet
parents: 48318
diff changeset
   714
          (if verbose then
340187063d84 use async manager to manage MaSh learners to make sure they get killed cleanly
blanchet
parents: 48318
diff changeset
   715
             " in " ^ string_from_time (Timer.checkRealTimer timer)
340187063d84 use async manager to manage MaSh learners to make sure they get killed cleanly
blanchet
parents: 48318
diff changeset
   716
           else
340187063d84 use async manager to manage MaSh learners to make sure they get killed cleanly
blanchet
parents: 48318
diff changeset
   717
             "") ^ "."
340187063d84 use async manager to manage MaSh learners to make sure they get killed cleanly
blanchet
parents: 48318
diff changeset
   718
        else
340187063d84 use async manager to manage MaSh learners to make sure they get killed cleanly
blanchet
parents: 48318
diff changeset
   719
          ""
48318
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   720
      end
48308
89674e5a4d35 make tracing an option
blanchet
parents: 48306
diff changeset
   721
  end
48304
50e64af9c829 more work on MaSh
blanchet
parents: 48303
diff changeset
   722
48392
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   723
fun mash_learn ctxt (params as {provers, ...}) atp =
48316
252f45c04042 drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents: 48315
diff changeset
   724
  let
252f45c04042 drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents: 48315
diff changeset
   725
    val thy = Proof_Context.theory_of ctxt
48383
df75b2d7e26a learn command in MaSh
blanchet
parents: 48382
diff changeset
   726
    val css_table = Sledgehammer_Fact.clasimpset_rule_table_of ctxt
df75b2d7e26a learn command in MaSh
blanchet
parents: 48382
diff changeset
   727
    val facts = all_facts_of thy css_table
48316
252f45c04042 drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents: 48315
diff changeset
   728
  in
48392
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   729
     mash_learn_facts ctxt params (hd provers) false atp infinite_timeout facts
48383
df75b2d7e26a learn command in MaSh
blanchet
parents: 48382
diff changeset
   730
     |> Output.urgent_message
48316
252f45c04042 drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents: 48315
diff changeset
   731
  end
48249
2bd242c56c90 dummy implementation
blanchet
parents: 48248
diff changeset
   732
48318
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   733
(* The threshold should be large enough so that MaSh doesn't kick in for Auto
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   734
   Sledgehammer and Try. *)
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   735
val min_secs_for_learning = 15
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   736
48321
c552d7f1720b learn from minimized ATP proofs
blanchet
parents: 48320
diff changeset
   737
fun relevant_facts ctxt (params as {learn, fact_filter, timeout, ...}) prover
c552d7f1720b learn from minimized ATP proofs
blanchet
parents: 48320
diff changeset
   738
        max_facts ({add, only, ...} : fact_override) hyp_ts concl_t facts =
48314
ee33ba3c0e05 added option to control which fact filter is used
blanchet
parents: 48313
diff changeset
   739
  if not (subset (op =) (the_list fact_filter, fact_filters)) then
ee33ba3c0e05 added option to control which fact filter is used
blanchet
parents: 48313
diff changeset
   740
    error ("Unknown fact filter: " ^ quote (the fact_filter) ^ ".")
ee33ba3c0e05 added option to control which fact filter is used
blanchet
parents: 48313
diff changeset
   741
  else if only then
48289
6b65f1ad0e4b systematize lazy names in relevance filter
blanchet
parents: 48288
diff changeset
   742
    facts
48321
c552d7f1720b learn from minimized ATP proofs
blanchet
parents: 48320
diff changeset
   743
  else if max_facts <= 0 orelse null facts then
48288
255c6e1fd505 rationalize relevance filter, slowing moving code from Iter to MaSh
blanchet
parents: 48251
diff changeset
   744
    []
255c6e1fd505 rationalize relevance filter, slowing moving code from Iter to MaSh
blanchet
parents: 48251
diff changeset
   745
  else
255c6e1fd505 rationalize relevance filter, slowing moving code from Iter to MaSh
blanchet
parents: 48251
diff changeset
   746
    let
48327
568b3193e53e don't include hidden facts in relevance filter + tweak MaSh learning
blanchet
parents: 48326
diff changeset
   747
      fun maybe_learn () =
48384
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   748
        if learn andalso not (Async_Manager.has_running_threads MaShN) andalso
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   749
           Time.toSeconds timeout >= min_secs_for_learning then
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   750
          let val timeout = time_mult learn_timeout_slack timeout in
83dc102041e6 learn on explicit "min" command but do the learning in a thread, since it may take a couple of seconds
blanchet
parents: 48383
diff changeset
   751
            launch_thread timeout
48392
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   752
                (fn () => (true, mash_learn_facts ctxt params prover true false
ca998fa08cd9 added "learn_from_atp" command to MaSh, for patient users
blanchet
parents: 48390
diff changeset
   753
                                                  timeout facts))
48319
340187063d84 use async manager to manage MaSh learners to make sure they get killed cleanly
blanchet
parents: 48318
diff changeset
   754
          end
48318
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   755
        else
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   756
          ()
48314
ee33ba3c0e05 added option to control which fact filter is used
blanchet
parents: 48313
diff changeset
   757
      val fact_filter =
ee33ba3c0e05 added option to control which fact filter is used
blanchet
parents: 48313
diff changeset
   758
        case fact_filter of
48379
2b5ad61e2ccc renamed "iter" fact filter to "MePo" (Meng--Paulson)
blanchet
parents: 48378
diff changeset
   759
          SOME ff => (() |> ff <> mepoN ? maybe_learn; ff)
48318
325c8fd0d762 more consolidation of MaSh code
blanchet
parents: 48316
diff changeset
   760
        | NONE =>
48386
b903ea11b3bc use good old MePo filter for SMT solvers by default, since arithmetic is built-in for them
blanchet
parents: 48385
diff changeset
   761
          if is_smt_prover ctxt prover then mepoN
b903ea11b3bc use good old MePo filter for SMT solvers by default, since arithmetic is built-in for them
blanchet
parents: 48385
diff changeset
   762
          else if mash_can_suggest_facts ctxt then (maybe_learn (); meshN)
48379
2b5ad61e2ccc renamed "iter" fact filter to "MePo" (Meng--Paulson)
blanchet
parents: 48378
diff changeset
   763
          else if mash_could_suggest_facts () then (maybe_learn (); mepoN)
2b5ad61e2ccc renamed "iter" fact filter to "MePo" (Meng--Paulson)
blanchet
parents: 48378
diff changeset
   764
          else mepoN
48288
255c6e1fd505 rationalize relevance filter, slowing moving code from Iter to MaSh
blanchet
parents: 48251
diff changeset
   765
      val add_ths = Attrib.eval_thms ctxt add
48292
7fcee834c7f5 more code rationalization in relevance filter
blanchet
parents: 48289
diff changeset
   766
      fun prepend_facts ths accepts =
48288
255c6e1fd505 rationalize relevance filter, slowing moving code from Iter to MaSh
blanchet
parents: 48251
diff changeset
   767
        ((facts |> filter (member Thm.eq_thm_prop ths o snd)) @
48292
7fcee834c7f5 more code rationalization in relevance filter
blanchet
parents: 48289
diff changeset
   768
         (accepts |> filter_out (member Thm.eq_thm_prop ths o snd)))
48293
914ca0827804 renamed Sledgehammer options
blanchet
parents: 48292
diff changeset
   769
        |> take max_facts
48314
ee33ba3c0e05 added option to control which fact filter is used
blanchet
parents: 48313
diff changeset
   770
      fun iter () =
48298
f5b160f9859e more work on MaSh
blanchet
parents: 48297
diff changeset
   771
        iterative_relevant_facts ctxt params prover max_facts NONE hyp_ts
f5b160f9859e more work on MaSh
blanchet
parents: 48297
diff changeset
   772
                                 concl_t facts
48314
ee33ba3c0e05 added option to control which fact filter is used
blanchet
parents: 48313
diff changeset
   773
      fun mash () =
48320
891a24a48155 improved meshing of MaSh and Meng--Paulson if some MaSh suggestions are cut-off (the common case)
blanchet
parents: 48319
diff changeset
   774
        mash_suggest_facts ctxt params prover max_facts hyp_ts concl_t facts
48314
ee33ba3c0e05 added option to control which fact filter is used
blanchet
parents: 48313
diff changeset
   775
      val mess =
48320
891a24a48155 improved meshing of MaSh and Meng--Paulson if some MaSh suggestions are cut-off (the common case)
blanchet
parents: 48319
diff changeset
   776
        [] |> (if fact_filter <> mashN then cons (iter (), []) else I)
48379
2b5ad61e2ccc renamed "iter" fact filter to "MePo" (Meng--Paulson)
blanchet
parents: 48378
diff changeset
   777
           |> (if fact_filter <> mepoN then cons (mash ()) else I)
48288
255c6e1fd505 rationalize relevance filter, slowing moving code from Iter to MaSh
blanchet
parents: 48251
diff changeset
   778
    in
48313
0faafdffa662 mesh facts by taking into consideration whether a fact is known to MeSh
blanchet
parents: 48312
diff changeset
   779
      mesh_facts max_facts mess
48288
255c6e1fd505 rationalize relevance filter, slowing moving code from Iter to MaSh
blanchet
parents: 48251
diff changeset
   780
      |> not (null add_ths) ? prepend_facts add_ths
255c6e1fd505 rationalize relevance filter, slowing moving code from Iter to MaSh
blanchet
parents: 48251
diff changeset
   781
    end
255c6e1fd505 rationalize relevance filter, slowing moving code from Iter to MaSh
blanchet
parents: 48251
diff changeset
   782
48319
340187063d84 use async manager to manage MaSh learners to make sure they get killed cleanly
blanchet
parents: 48318
diff changeset
   783
fun kill_learners () = Async_Manager.kill_threads MaShN "learner"
340187063d84 use async manager to manage MaSh learners to make sure they get killed cleanly
blanchet
parents: 48318
diff changeset
   784
fun running_learners () = Async_Manager.running_threads MaShN "learner"
340187063d84 use async manager to manage MaSh learners to make sure they get killed cleanly
blanchet
parents: 48318
diff changeset
   785
48248
b6eb45a52c28 split relevance filter code into three files
blanchet
parents:
diff changeset
   786
end;