author  blanchet 
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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 machinelearningbased 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 * real) list 
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val nickname_of : thm > string 
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val suggested_facts : 
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(string * 'a) list > ('b * thm) list > (('b * thm) * 'a) list 

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val mesh_facts : 
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int > ((('a * thm) * real) list * ('a * thm) list) list > ('a * thm) list 
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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 option 
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val atp_dependencies_of : 
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Proof.context > params > string > int > fact list > unit Symtab.table 
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> thm > string list option 

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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_REPROVE : 
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Proof.context > bool > (string * string list) list > unit 

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val mash_QUERY : 
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Proof.context > bool > int > string list * string list 
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> (string * real) 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_suggested_facts : 
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Proof.context > params > string > int > term list > term 
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> fact list > (fact * real) list * fact 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 : 
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Proof.context > params > fact_override > thm list > 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_model_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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val mash_state_dir = mash_model_dir 
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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_node line = 
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case space_explode ":" line of 

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[name, parents] => (unescape_meta name, unescape_metas parents) 

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 _ => ("", []) 

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fun extract_suggestion sugg = 

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case space_explode "=" sugg of 

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[name, weight] => 

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SOME (unescape_meta name, Real.fromString weight > the_default 0.0) 

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 _ => NONE 

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fun extract_query line = 
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case space_explode ":" line of 

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[goal, suggs] => 
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(unescape_meta goal, 

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map_filter extract_suggestion (space_explode " " 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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if Thm.has_name_hint th then 
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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 suf => 
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parent_of_local_thm th ^ Long_Name.separator ^ Long_Name.separator ^ suf 
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 NONE => hint 
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end 
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else 
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backquote_thm th 
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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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fun find_sugg (name, weight) = 
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Symtab.lookup tab name > Option.map (rpair weight) 

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in map_filter find_sugg suggs end 

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fun sum_avg [] = 0 
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 sum_avg xs = 
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Real.ceil (100000000.0 * fold (curry (op +)) xs 0.0) div length xs 

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fun normalize_scores [] = [] 
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 normalize_scores ((fact, score) :: tail) = 

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(fact, 1.0) :: map (apsnd (curry Real.* (1.0 / score))) tail 

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fun mesh_facts max_facts [(sels, unks)] = 
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map fst (take max_facts sels) @ take (max_facts  length sels) unks 

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 mesh_facts max_facts mess = 
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let 
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val mess = mess > map (apfst (normalize_scores #> `length)) 
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val fact_eq = Thm.eq_thm o pairself snd 
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fun score_at sels = try (nth sels) #> Option.map snd 
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fun score_in fact ((sel_len, sels), unks) = 
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case find_index (curry fact_eq fact o fst) sels of 
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~1 => (case find_index (curry fact_eq fact) unks of 
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~1 => score_at sels sel_len 
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 _ => NONE) 
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 rank => score_at sels rank 
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fun weight_of fact = mess > map_filter (score_in fact) > sum_avg 

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val facts = 

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fold (union fact_eq o map fst o take max_facts o snd o fst) mess [] 

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in 
48406  211 
facts > map (`weight_of) > sort (int_ord o swap o pairself fst) 
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> map snd > take max_facts 
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213 
end 
48312  214 

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val thy_feature_name_of = prefix "y" 
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val const_name_of = prefix "c" 
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val type_name_of = prefix "t" 
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val class_name_of = prefix "s" 
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48324  220 
fun theory_ord p = 
221 
if Theory.eq_thy p then 

222 
EQUAL 

223 
else if Theory.subthy p then 

224 
LESS 

225 
else if Theory.subthy (swap p) then 

226 
GREATER 

227 
else case int_ord (pairself (length o Theory.ancestors_of) p) of 

228 
EQUAL => string_ord (pairself Context.theory_name p) 

229 
 order => order 

230 

231 
val thm_ord = theory_ord o pairself theory_of_thm 

232 

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val freezeT = Type.legacy_freeze_type 
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234 

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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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241 

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fun goal_of_thm thy = prop_of #> freeze #> cterm_of thy #> Goal.init 
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243 

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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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249 
> map Untranslated_Fact} 
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250 
in 
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get_minimizing_prover ctxt MaSh (K (K ())) prover params (K (K (K ""))) 
48392
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252 
problem 
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253 
end 
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254 

48326  255 
val bad_types = [@{type_name prop}, @{type_name bool}, @{type_name fun}] 
256 

48398  257 
val logical_consts = 
258 
[@{const_name prop}, @{const_name Pure.conjunction}] @ atp_logical_consts 

259 

48318  260 
fun interesting_terms_types_and_classes ctxt prover term_max_depth 
261 
type_max_depth ts = 

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262 
let 
48318  263 
fun is_bad_const (x as (s, _)) args = 
48398  264 
member (op =) logical_consts s orelse 
48318  265 
fst (is_built_in_const_for_prover ctxt prover x args) 
48304  266 
fun add_classes @{sort type} = I 
267 
 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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270 
#> fold do_add_type Ts 
48304  271 
 do_add_type (TFree (_, S)) = add_classes S 
272 
 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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274 
fun mk_app s args = 
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if member (op <>) args "" then s ^ "(" ^ space_implode "," args ^ ")" 
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276 
else s 
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277 
fun patternify ~1 _ = "" 
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278 
 patternify depth t = 
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279 
case strip_comb t of 
48398  280 
(Const (x as (s, _)), args) => 
281 
if is_bad_const x args then "" 

282 
else mk_app (const_name_of s) (map (patternify (depth  1)) args) 

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 _ => "" 
48406  284 
fun add_pattern depth t = 
285 
case patternify depth t of "" => I  s => insert (op =) s 

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286 
fun add_term_patterns ~1 _ = I 
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287 
 add_term_patterns depth t = 
48406  288 
add_pattern depth t #> add_term_patterns (depth  1) t 
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289 
val add_term = add_term_patterns term_max_depth 
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290 
fun add_patterns t = 
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291 
let val (head, args) = strip_comb t in 
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292 
(case head of 
48398  293 
Const (_, T) => add_term t #> add_type T 
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294 
 Free (_, T) => add_type T 
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295 
 Var (_, T) => add_type T 
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296 
 Abs (_, T, body) => add_type T #> add_patterns body 
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297 
 _ => I) 
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298 
#> fold add_patterns args 
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299 
end 
48326  300 
in [] > fold add_patterns ts end 
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301 

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302 
fun is_exists (s, _) = (s = @{const_name Ex} orelse s = @{const_name Ex1}) 
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303 

48297  304 
val term_max_depth = 1 
305 
val type_max_depth = 1 

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306 

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307 
(* TODO: Generate type classes for types? *) 
48385  308 
fun features_of ctxt prover thy (scope, status) ts = 
48303
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309 
thy_feature_name_of (Context.theory_name thy) :: 
48318  310 
interesting_terms_types_and_classes ctxt prover term_max_depth type_max_depth 
311 
ts 

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312 
> forall is_lambda_free ts ? cons "no_lams" 
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313 
> forall (not o exists_Const is_exists) ts ? cons "no_skos" 
48385  314 
> scope <> Global ? cons "local" 
48302  315 
> (case status of 
316 
General => I 

317 
 Induction => cons "induction" 

318 
 Intro => cons "intro" 

319 
 Inductive => cons "inductive" 

320 
 Elim => cons "elim" 

321 
 Simp => cons "simp" 

322 
 Def => cons "def") 

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323 

48404  324 
(* Too many dependencies is a sign that a decision procedure is at work. There 
325 
isn't much too learn from such proofs. *) 

326 
val max_dependencies = 10 

327 
val atp_dependency_default_max_fact = 50 

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328 

48404  329 
fun trim_dependencies deps = 
330 
if length deps <= max_dependencies then SOME deps else NONE 

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331 

48406  332 
fun isar_dependencies_of all_names = 
333 
thms_in_proof (SOME all_names) #> trim_dependencies 

48404  334 

335 
fun atp_dependencies_of ctxt (params as {verbose, max_facts, ...}) prover 

336 
auto_level facts all_names th = 

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337 
case isar_dependencies_of all_names th of 
48404  338 
SOME [] => NONE 
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339 
 isar_deps => 
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340 
let 
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341 
val thy = Proof_Context.theory_of ctxt 
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342 
val goal = goal_of_thm thy th 
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343 
val (_, hyp_ts, concl_t) = ATP_Util.strip_subgoal ctxt goal 1 
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344 
val facts = facts > filter (fn (_, th') => thm_ord (th', th) = LESS) 
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345 
fun fix_name ((_, stature), th) = ((fn () => nickname_of th, stature), th) 
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346 
fun is_dep dep (_, th) = nickname_of th = dep 
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347 
fun add_isar_dep facts dep accum = 
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348 
if exists (is_dep dep) accum then 
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349 
accum 
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350 
else case find_first (is_dep dep) facts of 
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351 
SOME ((name, status), th) => accum @ [((name, status), th)] 
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352 
 NONE => accum (* shouldn't happen *) 
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353 
val facts = 
48406  354 
facts > mepo_suggested_facts ctxt params prover 
48404  355 
(max_facts > the_default atp_dependency_default_max_fact) 
356 
NONE hyp_ts concl_t 

357 
> fold (add_isar_dep facts) (these isar_deps) 

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358 
> map fix_name 
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359 
in 
48404  360 
if verbose andalso auto_level = 0 then 
48392
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361 
let val num_facts = length facts in 
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362 
"MaSh: " ^ quote prover ^ " on " ^ quote (nickname_of th) ^ 
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363 
" with " ^ string_of_int num_facts ^ " fact" ^ plural_s num_facts ^ 
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364 
"." 
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365 
> Output.urgent_message 
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366 
end 
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367 
else 
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368 
(); 
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369 
case run_prover_for_mash ctxt params prover facts goal of 
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370 
{outcome = NONE, used_facts, ...} => 
48404  371 
(if verbose andalso auto_level = 0 then 
48392
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372 
let val num_facts = length used_facts in 
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373 
"Found proof with " ^ string_of_int num_facts ^ " fact" ^ 
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374 
plural_s num_facts ^ "." 
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375 
> Output.urgent_message 
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376 
end 
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377 
else 
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378 
(); 
48404  379 
used_facts > map fst > trim_dependencies) 
380 
 _ => NONE 

48392
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381 
end 
48251
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382 

6cdcfbddc077
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383 

48302  384 
(*** Lowlevel communication with MaSh ***) 
385 

48394
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386 
(* more friendly than "try o File.rm" for those who keep the files open in their 
82fc8c956cdc
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387 
text editor *) 
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388 
fun wipe_out file = File.write file "" 
82fc8c956cdc
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changeset

389 

48323  390 
fun write_file (xs, f) file = 
48318  391 
let val path = Path.explode file in 
48394
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changeset

392 
wipe_out path; 
48323  393 
xs > chunk_list 500 
394 
> List.app (File.append path o space_implode "" o map f) 

48318  395 
end 
48316
252f45c04042
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blanchet
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48315
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changeset

396 

48394
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changeset

397 
fun run_mash_tool ctxt overlord save max_suggs write_cmds read_suggs = 
48311  398 
let 
48394
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changeset

399 
val (temp_dir, serial) = 
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changeset

400 
if overlord then (getenv "ISABELLE_HOME_USER", "") 
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

401 
else (getenv "ISABELLE_TMP", serial_string ()) 
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

402 
val log_file = if overlord then temp_dir ^ "/mash_log" else "/dev/null" 
48316
252f45c04042
drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents:
48315
diff
changeset

403 
val err_file = temp_dir ^ "/mash_err" ^ serial 
48318  404 
val sugg_file = temp_dir ^ "/mash_suggs" ^ serial 
48316
252f45c04042
drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents:
48315
diff
changeset

405 
val cmd_file = temp_dir ^ "/mash_commands" ^ serial 
48394
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

406 
val core = 
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

407 
"inputFile " ^ cmd_file ^ " predictions " ^ sugg_file ^ 
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

408 
" numberOfPredictions " ^ string_of_int max_suggs ^ 
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

409 
(if save then " saveModel" else "") 
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

410 
val command = 
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

411 
mash_home () ^ "/mash quiet outputDir " ^ mash_model_dir () ^ 
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

412 
" log " ^ log_file ^ " " ^ core ^ " >& " ^ err_file 
48316
252f45c04042
drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents:
48315
diff
changeset

413 
in 
48323  414 
write_file ([], K "") sugg_file; 
48316
252f45c04042
drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents:
48315
diff
changeset

415 
write_file write_cmds cmd_file; 
48394
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

416 
trace_msg ctxt (fn () => "Running " ^ command); 
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

417 
Isabelle_System.bash command; 
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

418 
read_suggs (fn () => try File.read_lines (Path.explode sugg_file) > these) 
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

419 
> tap (fn _ => trace_msg ctxt (fn () => 
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

420 
case try File.read (Path.explode err_file) of 
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
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parents:
48392
diff
changeset

421 
NONE => "Done" 
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
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diff
changeset

422 
 SOME "" => "Done" 
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
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diff
changeset

423 
 SOME s => "Error: " ^ elide_string 1000 s)) 
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
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diff
changeset

424 
> not overlord 
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

425 
? tap (fn _ => List.app (wipe_out o Path.explode) 
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
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diff
changeset

426 
[err_file, sugg_file, cmd_file]) 
48316
252f45c04042
drastic overhaul of MaSh data structures + fixed a few performance issues
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diff
changeset

427 
end 
252f45c04042
drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents:
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diff
changeset

428 

48404  429 
fun str_of_add (name, parents, feats, deps) = 
48316
252f45c04042
drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents:
48315
diff
changeset

430 
"! " ^ escape_meta name ^ ": " ^ escape_metas parents ^ "; " ^ 
48311  431 
escape_metas feats ^ "; " ^ escape_metas deps ^ "\n" 
432 

48404  433 
fun str_of_reprove (name, deps) = 
434 
"p " ^ escape_meta name ^ ": " ^ escape_metas deps ^ "\n" 

435 

48316
252f45c04042
drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents:
48315
diff
changeset

436 
fun str_of_query (parents, feats) = 
48406  437 
"? " ^ escape_metas parents ^ "; " ^ escape_metas feats ^ "\n" 
48316
252f45c04042
drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents:
48315
diff
changeset

438 

48332
271a4a6af734
optimize parent computation in MaSh + remove temporary files
blanchet
parents:
48330
diff
changeset

439 
fun mash_CLEAR ctxt = 
48394
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

440 
let val path = mash_model_dir () > Path.explode in 
48332
271a4a6af734
optimize parent computation in MaSh + remove temporary files
blanchet
parents:
48330
diff
changeset

441 
trace_msg ctxt (K "MaSh CLEAR"); 
48394
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

442 
File.fold_dir (fn file => fn _ => 
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

443 
try File.rm (Path.append path (Path.basic file))) 
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

444 
path NONE; 
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

445 
() 
48309  446 
end 
48302  447 

48316
252f45c04042
drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents:
48315
diff
changeset

448 
fun mash_ADD _ _ [] = () 
48404  449 
 mash_ADD ctxt overlord adds = 
48316
252f45c04042
drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents:
48315
diff
changeset

450 
(trace_msg ctxt (fn () => "MaSh ADD " ^ 
48404  451 
elide_string 1000 (space_implode " " (map #1 adds))); 
452 
run_mash_tool ctxt overlord true 0 (adds, str_of_add) (K ())) 

453 

454 
fun mash_REPROVE _ _ [] = () 

455 
 mash_REPROVE ctxt overlord reps = 

456 
(trace_msg ctxt (fn () => "MaSh REPROVE " ^ 

457 
elide_string 1000 (space_implode " " (map #1 reps))); 

458 
run_mash_tool ctxt overlord true 0 (reps, str_of_reprove) (K ())) 

48302  459 

48318  460 
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

461 
(trace_msg ctxt (fn () => "MaSh QUERY " ^ space_implode " " feats); 
48394
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

462 
run_mash_tool ctxt overlord false max_suggs 
48323  463 
([query], str_of_query) 
48394
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

464 
(fn suggs => 
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

465 
case suggs () of 
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

466 
[] => [] 
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

467 
 suggs => snd (extract_query (List.last suggs))) 
48311  468 
handle List.Empty => []) 
48302  469 

470 

48251
6cdcfbddc077
moved most of MaSh exporter code to Sledgehammer
blanchet
parents:
48249
diff
changeset

471 
(*** Highlevel communication with MaSh ***) 
6cdcfbddc077
moved most of MaSh exporter code to Sledgehammer
blanchet
parents:
48249
diff
changeset

472 

48321  473 
fun try_graph ctxt when def f = 
474 
f () 

475 
handle Graph.CYCLES (cycle :: _) => 

476 
(trace_msg ctxt (fn () => 

477 
"Cycle involving " ^ commas cycle ^ " when " ^ when); def) 

48392
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

478 
 Graph.DUP name => 
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

479 
(trace_msg ctxt (fn () => 
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

480 
"Duplicate fact " ^ quote name ^ " when " ^ when); def) 
48321  481 
 Graph.UNDEF name => 
482 
(trace_msg ctxt (fn () => 

483 
"Unknown fact " ^ quote name ^ " when " ^ when); def) 

48392
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

484 
 exn => 
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

485 
if Exn.is_interrupt exn then 
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

486 
reraise exn 
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

487 
else 
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

488 
(trace_msg ctxt (fn () => 
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

489 
"Internal error when " ^ when ^ ":\n" ^ 
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

490 
ML_Compiler.exn_message exn); def) 
48321  491 

48406  492 
fun graph_info G = 
493 
string_of_int (length (Graph.keys G)) ^ " node(s), " ^ 

494 
string_of_int (fold (Integer.add o length o snd) (Graph.dest G) 0) ^ 

495 
" edge(s), " ^ 

496 
string_of_int (length (Graph.minimals G)) ^ " minimal, " ^ 

497 
string_of_int (length (Graph.maximals G)) ^ " maximal" 

498 

48400  499 
type mash_state = {fact_G : unit Graph.T} 
48301  500 

48400  501 
val empty_state = {fact_G = Graph.empty} 
48301  502 

503 
local 

504 

48390
4147f2bc4442
add versioning to MaSh state + cleanup dead code
blanchet
parents:
48389
diff
changeset

505 
val version = "*** MaSh 0.0 ***" 
4147f2bc4442
add versioning to MaSh state + cleanup dead code
blanchet
parents:
48389
diff
changeset

506 

4147f2bc4442
add versioning to MaSh state + cleanup dead code
blanchet
parents:
48389
diff
changeset

507 
fun load _ (state as (true, _)) = state 
4147f2bc4442
add versioning to MaSh state + cleanup dead code
blanchet
parents:
48389
diff
changeset

508 
 load ctxt _ = 
48309  509 
let val path = mash_state_path () in 
48302  510 
(true, 
511 
case try File.read_lines path of 

48406  512 
SOME (version' :: node_lines) => 
48302  513 
let 
48322
8a8d71e34297
fixed MaSh state load code so it works even if the facts are read in disorder
blanchet
parents:
48321
diff
changeset

514 
fun add_edge_to name parent = 
48406  515 
Graph.default_node (parent, ()) #> Graph.add_edge (parent, name) 
516 
fun add_node line = 

517 
case extract_node line of 

48316
252f45c04042
drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents:
48315
diff
changeset

518 
("", _) => I (* shouldn't happen *) 
252f45c04042
drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents:
48315
diff
changeset

519 
 (name, parents) => 
48406  520 
Graph.default_node (name, ()) #> fold (add_edge_to name) parents 
48400  521 
val fact_G = 
48322
8a8d71e34297
fixed MaSh state load code so it works even if the facts are read in disorder
blanchet
parents:
48321
diff
changeset

522 
try_graph ctxt "loading state" Graph.empty (fn () => 
48406  523 
Graph.empty > version' = version ? fold add_node node_lines) 
524 
in 

525 
trace_msg ctxt (fn () => 

526 
"Loaded fact graph (" ^ graph_info fact_G ^ ")"); 

527 
{fact_G = fact_G} 

528 
end 

48304  529 
 _ => empty_state) 
48302  530 
end 
48249  531 

48406  532 
fun save ctxt {fact_G} = 
48301  533 
let 
48309  534 
val path = mash_state_path () 
48318  535 
fun fact_line_for name parents = 
536 
escape_meta name ^ ": " ^ escape_metas parents 

48316
252f45c04042
drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents:
48315
diff
changeset

537 
val append_fact = File.append path o suffix "\n" oo fact_line_for 
48400  538 
fun append_entry (name, ((), (parents, _))) () = 
539 
append_fact name (Graph.Keys.dest parents) 

48301  540 
in 
48390
4147f2bc4442
add versioning to MaSh state + cleanup dead code
blanchet
parents:
48389
diff
changeset

541 
File.write path (version ^ "\n"); 
48406  542 
Graph.fold append_entry fact_G (); 
543 
trace_msg ctxt (fn () => "Saved fact graph (" ^ graph_info fact_G ^ ")") 

48301  544 
end 
545 

48302  546 
val global_state = 
48381  547 
Synchronized.var "Sledgehammer_MaSh.global_state" (false, empty_state) 
48301  548 

549 
in 

550 

48321  551 
fun mash_map ctxt f = 
48406  552 
Synchronized.change global_state (load ctxt ##> (f #> tap (save ctxt))) 
48302  553 

48434
aaaec69db3db
ensure all calls to "mash" program are synchronous
blanchet
parents:
48433
diff
changeset

554 
fun mash_peek ctxt f = 
aaaec69db3db
ensure all calls to "mash" program are synchronous
blanchet
parents:
48433
diff
changeset

555 
Synchronized.change_result global_state (load ctxt #> `snd #>> f) 
aaaec69db3db
ensure all calls to "mash" program are synchronous
blanchet
parents:
48433
diff
changeset

556 

48321  557 
fun mash_get ctxt = 
48390
4147f2bc4442
add versioning to MaSh state + cleanup dead code
blanchet
parents:
48389
diff
changeset

558 
Synchronized.change_result global_state (load ctxt #> `snd) 
48302  559 

48332
271a4a6af734
optimize parent computation in MaSh + remove temporary files
blanchet
parents:
48330
diff
changeset

560 
fun mash_unlearn ctxt = 
48302  561 
Synchronized.change global_state (fn _ => 
48394
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

562 
(mash_CLEAR ctxt; wipe_out (mash_state_path ()); (true, empty_state))) 
48301  563 

564 
end 

565 

48318  566 
fun mash_could_suggest_facts () = mash_home () <> "" 
48400  567 
fun mash_can_suggest_facts ctxt = not (Graph.is_empty (#fact_G (mash_get ctxt))) 
48249  568 

48407  569 
fun num_keys keys = Graph.Keys.fold (K (Integer.add 1)) keys 0 
48400  570 

48407  571 
fun maximal_in_graph fact_G facts = 
48316
252f45c04042
drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents:
48315
diff
changeset

572 
let 
48378  573 
val facts = [] > fold (cons o nickname_of o snd) facts 
48407  574 
val tab = Symtab.empty > fold (fn name => Symtab.default (name, ())) facts 
575 
fun insert_new seen name = 

576 
not (Symtab.defined seen name) ? insert (op =) name 

577 
fun find_maxes _ (maxs, []) = map snd maxs 

578 
 find_maxes seen (maxs, new :: news) = 

579 
find_maxes 

580 
(seen > num_keys (Graph.imm_succs fact_G new) > 1 

581 
? Symtab.default (new, ())) 

582 
(if Symtab.defined tab new then 

583 
let 

584 
val newp = Graph.all_preds fact_G [new] 

585 
fun is_ancestor x yp = member (op =) yp x 

586 
val maxs = 

587 
maxs > filter (fn (_, max) => not (is_ancestor max newp)) 

588 
in 

589 
if exists (is_ancestor new o fst) maxs then 

590 
(maxs, news) 

591 
else 

592 
((newp, new) 

593 
:: filter_out (fn (_, max) => is_ancestor max newp) maxs, 

594 
news) 

595 
end 

596 
else 

597 
(maxs, Graph.Keys.fold (insert_new seen) 

598 
(Graph.imm_preds fact_G new) news)) 

599 
in find_maxes Symtab.empty ([], Graph.maximals fact_G) end 

48316
252f45c04042
drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents:
48315
diff
changeset

600 

48318  601 
(* Generate more suggestions than requested, because some might be thrown out 
602 
later for various reasons and "meshing" gives better results with some 

603 
slack. *) 

48434
aaaec69db3db
ensure all calls to "mash" program are synchronous
blanchet
parents:
48433
diff
changeset

604 
fun max_suggs_of max_facts = max_facts + Int.min (50, max_facts) 
48318  605 

48400  606 
fun is_fact_in_graph fact_G (_, th) = 
607 
can (Graph.get_node fact_G) (nickname_of th) 

48320
891a24a48155
improved meshing of MaSh and MengPaulson if some MaSh suggestions are cutoff (the common case)
blanchet
parents:
48319
diff
changeset

608 

48435  609 
fun interleave [] ys = ys 
610 
 interleave xs [] = xs 

611 
 interleave (x :: xs) (y :: ys) = x :: y :: interleave xs ys 

612 

48406  613 
fun mash_suggested_facts ctxt ({overlord, ...} : params) prover max_facts hyp_ts 
614 
concl_t facts = 

48301  615 
let 
48302  616 
val thy = Proof_Context.theory_of ctxt 
48434
aaaec69db3db
ensure all calls to "mash" program are synchronous
blanchet
parents:
48433
diff
changeset

617 
val (fact_G, suggs) = 
aaaec69db3db
ensure all calls to "mash" program are synchronous
blanchet
parents:
48433
diff
changeset

618 
mash_peek ctxt (fn {fact_G} => 
aaaec69db3db
ensure all calls to "mash" program are synchronous
blanchet
parents:
48433
diff
changeset

619 
if Graph.is_empty fact_G then 
aaaec69db3db
ensure all calls to "mash" program are synchronous
blanchet
parents:
48433
diff
changeset

620 
(fact_G, []) 
aaaec69db3db
ensure all calls to "mash" program are synchronous
blanchet
parents:
48433
diff
changeset

621 
else 
aaaec69db3db
ensure all calls to "mash" program are synchronous
blanchet
parents:
48433
diff
changeset

622 
let 
aaaec69db3db
ensure all calls to "mash" program are synchronous
blanchet
parents:
48433
diff
changeset

623 
val parents = maximal_in_graph fact_G facts 
aaaec69db3db
ensure all calls to "mash" program are synchronous
blanchet
parents:
48433
diff
changeset

624 
val feats = 
aaaec69db3db
ensure all calls to "mash" program are synchronous
blanchet
parents:
48433
diff
changeset

625 
features_of ctxt prover thy (Local, General) (concl_t :: hyp_ts) 
aaaec69db3db
ensure all calls to "mash" program are synchronous
blanchet
parents:
48433
diff
changeset

626 
in 
aaaec69db3db
ensure all calls to "mash" program are synchronous
blanchet
parents:
48433
diff
changeset

627 
(fact_G, mash_QUERY ctxt overlord (max_suggs_of max_facts) 
aaaec69db3db
ensure all calls to "mash" program are synchronous
blanchet
parents:
48433
diff
changeset

628 
(parents, feats)) 
aaaec69db3db
ensure all calls to "mash" program are synchronous
blanchet
parents:
48433
diff
changeset

629 
end) 
48435  630 
val sels = 
48408  631 
facts > suggested_facts suggs 
632 
(* The weights currently returned by "mash.py" are too extreme to 

633 
make any sense. *) 

48435  634 
> map fst 
635 
val (unk_global, unk_local) = 

636 
facts > filter_out (is_fact_in_graph fact_G) 

637 
> List.partition (fn ((_, (loc, _)), _) => loc = Global) 

638 
in (interleave unk_local sels > weight_mepo_facts, unk_global) end 

48249  639 

48404  640 
fun add_to_fact_graph ctxt (name, parents, feats, deps) (adds, graph) = 
48316
252f45c04042
drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents:
48315
diff
changeset

641 
let 
252f45c04042
drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents:
48315
diff
changeset

642 
fun maybe_add_from from (accum as (parents, graph)) = 
48321  643 
try_graph ctxt "updating graph" accum (fn () => 
644 
(from :: parents, Graph.add_edge_acyclic (from, name) graph)) 

645 
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

646 
val (parents, graph) = ([], graph) > fold maybe_add_from parents 
48407  647 
val (deps, _) = ([], graph) > fold maybe_add_from deps 
48404  648 
in ((name, parents, feats, deps) :: adds, graph) end 
48306  649 

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

650 
val learn_timeout_slack = 2.0 
48318  651 

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

652 
fun launch_thread timeout task = 
48383  653 
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

654 
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

655 
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

656 
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

657 
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

658 
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

659 

48400  660 
fun freshish_name () = 
661 
Date.fmt ".%Y_%m_%d_%H_%M_%S__" (Date.fromTimeLocal (Time.now ())) ^ 

662 
serial_string () 

663 

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

664 
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

665 
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

666 
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

667 
() 
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

668 
else 
48403
1f214c653c80
don't store fresh names in fact graph, since these cannot be the parents of any other facts
blanchet
parents:
48401
diff
changeset

669 
launch_thread timeout (fn () => 
1f214c653c80
don't store fresh names in fact graph, since these cannot be the parents of any other facts
blanchet
parents:
48401
diff
changeset

670 
let 
1f214c653c80
don't store fresh names in fact graph, since these cannot be the parents of any other facts
blanchet
parents:
48401
diff
changeset

671 
val thy = Proof_Context.theory_of ctxt 
1f214c653c80
don't store fresh names in fact graph, since these cannot be the parents of any other facts
blanchet
parents:
48401
diff
changeset

672 
val name = freshish_name () 
1f214c653c80
don't store fresh names in fact graph, since these cannot be the parents of any other facts
blanchet
parents:
48401
diff
changeset

673 
val feats = features_of ctxt prover thy (Local, General) [t] 
1f214c653c80
don't store fresh names in fact graph, since these cannot be the parents of any other facts
blanchet
parents:
48401
diff
changeset

674 
val deps = used_ths > map nickname_of 
1f214c653c80
don't store fresh names in fact graph, since these cannot be the parents of any other facts
blanchet
parents:
48401
diff
changeset

675 
in 
48434
aaaec69db3db
ensure all calls to "mash" program are synchronous
blanchet
parents:
48433
diff
changeset

676 
mash_peek ctxt (fn {fact_G} => 
aaaec69db3db
ensure all calls to "mash" program are synchronous
blanchet
parents:
48433
diff
changeset

677 
let val parents = maximal_in_graph fact_G facts in 
aaaec69db3db
ensure all calls to "mash" program are synchronous
blanchet
parents:
48433
diff
changeset

678 
mash_ADD ctxt overlord [(name, parents, feats, deps)] 
aaaec69db3db
ensure all calls to "mash" program are synchronous
blanchet
parents:
48433
diff
changeset

679 
end); 
aaaec69db3db
ensure all calls to "mash" program are synchronous
blanchet
parents:
48433
diff
changeset

680 
(true, "") 
48403
1f214c653c80
don't store fresh names in fact graph, since these cannot be the parents of any other facts
blanchet
parents:
48401
diff
changeset

681 
end) 
48383  682 

48392
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

683 
fun sendback sub = 
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

684 
Markup.markup Isabelle_Markup.sendback (sledgehammerN ^ " " ^ sub) 
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 
val commit_timeout = seconds 30.0 
48332
271a4a6af734
optimize parent computation in MaSh + remove temporary files
blanchet
parents:
48330
diff
changeset

687 

48318  688 
(* The timeout is understood in a very slack fashion. *) 
48404  689 
fun mash_learn_facts ctxt (params as {debug, verbose, overlord, ...}) prover 
690 
auto_level atp learn_timeout facts = 

48304  691 
let 
48318  692 
val timer = Timer.startRealTimer () 
48392
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

693 
fun next_commit_time () = 
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

694 
Time.+ (Timer.checkRealTimer timer, commit_timeout) 
48400  695 
val {fact_G} = mash_get ctxt 
696 
val (old_facts, new_facts) = 

697 
facts > List.partition (is_fact_in_graph fact_G) 

698 
> sort (thm_ord o pairself snd) 

48308  699 
in 
48404  700 
if null new_facts andalso (not atp orelse null old_facts) then 
701 
if auto_level < 2 then 

702 
"No new " ^ (if atp then "ATP" else "Isar") ^ " proofs to learn." ^ 

703 
(if auto_level = 0 andalso not atp then 

704 
"\n\nHint: Try " ^ sendback learn_atpN ^ " to learn from ATP proofs." 

705 
else 

706 
"") 

48392
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

707 
else 
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

708 
"" 
48308  709 
else 
48304  710 
let 
48315
82d6e46c673f
fixed order of accessibles + other tweaks to MaSh
blanchet
parents:
48314
diff
changeset

711 
val all_names = 
48400  712 
facts > map snd 
713 
> filter_out is_likely_tautology_or_too_meta 

714 
> map (rpair () o nickname_of) 

715 
> Symtab.make 

48404  716 
val deps_of = 
717 
if atp then 

718 
atp_dependencies_of ctxt params prover auto_level facts all_names 

719 
else 

720 
isar_dependencies_of all_names 

721 
fun do_commit [] [] state = state 

722 
 do_commit adds reps {fact_G} = 

48392
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

723 
let 
48404  724 
val (adds, fact_G) = 
725 
([], fact_G) > fold (add_to_fact_graph ctxt) adds 

726 
in 

727 
mash_ADD ctxt overlord (rev adds); 

728 
mash_REPROVE ctxt overlord reps; 

729 
{fact_G = fact_G} 

730 
end 

731 
fun commit last adds reps = 

732 
(if debug andalso auto_level = 0 then 

733 
Output.urgent_message "Committing..." 

734 
else 

735 
(); 

736 
mash_map ctxt (do_commit (rev adds) reps); 

737 
if not last andalso auto_level = 0 then 

738 
let val num_proofs = length adds + length reps in 

739 
"Learned " ^ string_of_int num_proofs ^ " " ^ 

740 
(if atp then "ATP" else "Isar") ^ " proof" ^ 

741 
plural_s num_proofs ^ " in the last " ^ 

48392
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

742 
string_from_time commit_timeout ^ "." 
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

743 
> Output.urgent_message 
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

744 
end 
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

745 
else 
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

746 
()) 
48404  747 
fun learn_new_fact _ (accum as (_, (_, _, _, true))) = accum 
748 
 learn_new_fact ((_, stature), th) 

749 
(adds, (parents, n, next_commit, _)) = 

48318  750 
let 
48378  751 
val name = nickname_of th 
48332
271a4a6af734
optimize parent computation in MaSh + remove temporary files
blanchet
parents:
48330
diff
changeset

752 
val feats = 
48385  753 
features_of ctxt prover (theory_of_thm th) stature [prop_of th] 
48404  754 
val deps = deps_of th > these 
48394
82fc8c956cdc
fixed various issues with MaSh's file handling + tune output + generate local facts again + handle nameless facts gracefully
blanchet
parents:
48392
diff
changeset

755 
val n = n > not (null deps) ? Integer.add 1 
48404  756 
val adds = (name, parents, feats, deps) :: adds 
757 
val (adds, next_commit) = 

48392
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

758 
if Time.> (Timer.checkRealTimer timer, next_commit) then 
48404  759 
(commit false adds []; ([], next_commit_time ())) 
48392
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

760 
else 
48404  761 
(adds, next_commit) 
762 
val timed_out = Time.> (Timer.checkRealTimer timer, learn_timeout) 

763 
in (adds, ([name], n, next_commit, timed_out)) end 

764 
val n = 

765 
if null new_facts then 

766 
0 

767 
else 

768 
let 

769 
val last_th = new_facts > List.last > snd 

770 
(* crude approximation *) 

771 
val ancestors = 

772 
old_facts 

773 
> filter (fn (_, th) => thm_ord (th, last_th) <> GREATER) 

48407  774 
val parents = maximal_in_graph fact_G ancestors 
48404  775 
val (adds, (_, n, _, _)) = 
776 
([], (parents, 0, next_commit_time (), false)) 

777 
> fold learn_new_fact new_facts 

778 
in commit true adds []; n end 

779 
fun relearn_old_fact _ (accum as (_, (_, _, true))) = accum 

780 
 relearn_old_fact (_, th) (reps, (n, next_commit, _)) = 

781 
let 

782 
val name = nickname_of th 

783 
val (n, reps) = 

784 
case deps_of th of 

785 
SOME deps => (n + 1, (name, deps) :: reps) 

786 
 NONE => (n, reps) 

787 
val (reps, next_commit) = 

788 
if Time.> (Timer.checkRealTimer timer, next_commit) then 

789 
(commit false [] reps; ([], next_commit_time ())) 

790 
else 

791 
(reps, next_commit) 

792 
val timed_out = Time.> (Timer.checkRealTimer timer, learn_timeout) 

793 
in (reps, (n, next_commit, timed_out)) end 

794 
val n = 

48433  795 
if not atp orelse null old_facts then 
48404  796 
n 
797 
else 

798 
let 

48406  799 
fun priority_of (_, th) = 
48404  800 
random_range 0 (1000 * max_dependencies) 
801 
 500 * (th > isar_dependencies_of all_names 

802 
> Option.map length 

803 
> the_default max_dependencies) 

804 
val old_facts = 

48406  805 
old_facts > map (`priority_of) 
48404  806 
> sort (int_ord o pairself fst) 
807 
> map snd 

808 
val (reps, (n, _, _)) = 

809 
([], (n, next_commit_time (), false)) 

810 
> fold relearn_old_fact old_facts 

811 
in commit true [] reps; n end 

48318  812 
in 
48404  813 
if verbose orelse auto_level < 2 then 
814 
"Learned " ^ string_of_int n ^ " nontrivial " ^ 

815 
(if atp then "ATP" else "Isar") ^ " 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

816 
(if verbose then 
340187063d84
use async manager to manage MaSh learners to make sure they get killed cleanly
blanchet
parents:
48318
diff
changeset

817 
" 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

818 
else 
340187063d84
use async manager to manage MaSh learners to make sure they get killed cleanly
blanchet
parents:
48318
diff
changeset

819 
"") ^ "." 
340187063d84
use async manager to manage MaSh learners to make sure they get killed cleanly
blanchet
parents:
48318
diff
changeset

820 
else 
340187063d84
use async manager to manage MaSh learners to make sure they get killed cleanly
blanchet
parents:
48318
diff
changeset

821 
"" 
48318  822 
end 
48308  823 
end 
48304  824 

48404  825 
fun mash_learn ctxt (params as {provers, timeout, ...}) fact_override chained 
826 
atp = 

48316
252f45c04042
drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents:
48315
diff
changeset

827 
let 
48396  828 
val css = Sledgehammer_Fact.clasimpset_rule_table_of ctxt 
48395
85a7fb65507a
learning should honor the fact override and the chained facts
blanchet
parents:
48394
diff
changeset

829 
val ctxt = ctxt > Config.put instantiate_inducts false 
85a7fb65507a
learning should honor the fact override and the chained facts
blanchet
parents:
48394
diff
changeset

830 
val facts = 
48396  831 
nearly_all_facts ctxt false fact_override Symtab.empty css chained [] 
832 
@{prop True} 

48404  833 
val num_facts = length facts 
834 
val prover = hd provers 

835 
fun learn auto_level atp = 

836 
mash_learn_facts ctxt params prover auto_level atp infinite_timeout facts 

837 
> Output.urgent_message 

48316
252f45c04042
drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents:
48315
diff
changeset

838 
in 
48404  839 
(if atp then 
840 
("MaShing through " ^ string_of_int num_facts ^ " fact" ^ 

841 
plural_s num_facts ^ " for ATP proofs (" ^ quote prover ^ " timeout: " ^ 

842 
string_from_time timeout ^ ").\n\nCollecting Isar proofs first..." 

843 
> Output.urgent_message; 

844 
learn 1 false; 

845 
"Now collecting ATP proofs. This may take several hours. You can \ 

846 
\safely stop the learning process at any point." 

847 
> Output.urgent_message; 

848 
learn 0 true) 

849 
else 

850 
("MaShing through " ^ string_of_int num_facts ^ " fact" ^ 

851 
plural_s num_facts ^ " for Isar proofs..." 

852 
> Output.urgent_message; 

853 
learn 0 false)) 

48316
252f45c04042
drastic overhaul of MaSh data structures + fixed a few performance issues
blanchet
parents:
48315
diff
changeset

854 
end 
48249  855 

48318  856 
(* The threshold should be large enough so that MaSh doesn't kick in for Auto 
857 
Sledgehammer and Try. *) 

858 
val min_secs_for_learning = 15 

859 

48321  860 
fun relevant_facts ctxt (params as {learn, fact_filter, timeout, ...}) prover 
861 
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

862 
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

863 
error ("Unknown fact filter: " ^ quote (the fact_filter) ^ ".") 
ee33ba3c0e05
added option to control which fact filter is used
blanchet
parents:
48313
diff
changeset

864 
else if only then 
48289  865 
facts 
48321  866 
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

867 
[] 
255c6e1fd505
rationalize relevance filter, slowing moving code from Iter to MaSh
blanchet
parents:
48251
diff
changeset

868 
else 
255c6e1fd505
rationalize relevance filter, slowing moving code from Iter to MaSh
blanchet
parents:
48251
diff
changeset

869 
let 
48327
568b3193e53e
don't include hidden facts in relevance filter + tweak MaSh learning
blanchet
parents:
48326
diff
changeset

870 
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

871 
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

872 
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

873 
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

874 
launch_thread timeout 
48404  875 
(fn () => (true, mash_learn_facts ctxt params prover 2 false 
48392
ca998fa08cd9
added "learn_from_atp" command to MaSh, for patient users
blanchet
parents:
48390
diff
changeset

876 
timeout facts)) 
48319
340187063d84
use async manager to manage MaSh learners to make sure they get killed cleanly
blanchet
parents:
48318
diff
changeset

877 
end 
48318  878 
else 
879 
() 

48314
ee33ba3c0e05
added option to control which fact filter is used
blanchet
parents:
48313
diff
changeset

880 
val fact_filter = 
ee33ba3c0e05
added option to control which fact filter is used
blanchet
parents:
48313
diff
changeset

881 
case fact_filter of 
48379
2b5ad61e2ccc
renamed "iter" fact filter to "MePo" (MengPaulson)
blanchet
parents:
48378
diff
changeset

882 
SOME ff => (() > ff <> mepoN ? maybe_learn; ff) 
48318  883 
 NONE => 
48407  884 
if is_smt_prover ctxt prover then 
885 
mepoN 

886 
else if mash_could_suggest_facts () then 

887 
(maybe_learn (); 

888 
if mash_can_suggest_facts ctxt then meshN else mepoN) 

889 
else 

890 
mepoN 

48288
255c6e1fd505
rationalize relevance filter, slowing moving code from Iter to MaSh
blanchet
parents:
48251
diff
changeset

891 
val add_ths = Attrib.eval_thms ctxt add 
48292  892 
fun prepend_facts ths accepts = 
48288
255c6e1fd505
rationalize relevance filter, slowing moving code from Iter to MaSh
blanchet
parents:
48251
diff
changeset

893 
((facts > filter (member Thm.eq_thm_prop ths o snd)) @ 
48292  894 
(accepts > filter_out (member Thm.eq_thm_prop ths o snd))) 
48293  895 
> take max_facts 
48406  896 
fun mepo () = 
897 
facts > mepo_suggested_facts ctxt params prover max_facts NONE hyp_ts 

898 
concl_t 

899 
> weight_mepo_facts 

48314
ee33ba3c0e05
added option to control which fact filter is used
blanchet
parents:
48313
diff
changeset

900 
fun mash () = 
48406  901 
mash_suggested_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

902 
val mess = 
48406  903 
[] > (if fact_filter <> mashN then cons (mepo (), []) else I) 
48379
2b5ad61e2ccc
renamed "iter" fact filter to "MePo" (MengPaulson)
blanchet
parents:
48378
diff
changeset

904 
> (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

905 
in 
48313
0faafdffa662
mesh facts by taking into consideration whether a fact is known to MeSh
blanchet
parents:
48312
diff
changeset

906 
mesh_facts max_facts mess 
48288
255c6e1fd505
rationalize relevance filter, slowing moving code from Iter to MaSh
blanchet
parents:
48251
diff
changeset

907 
> not (null add_ths) ? prepend_facts add_ths 
255c6e1fd505
rationalize relevance filter, slowing moving code from Iter to MaSh
blanchet
parents:
48251
diff
changeset

908 
end 
255c6e1fd505
rationalize relevance filter, slowing moving code from Iter to MaSh
blanchet
parents:
48251
diff
changeset

909 

48319
340187063d84
use async manager to manage MaSh learners to make sure they get killed cleanly
blanchet
parents:
48318
diff
changeset

910 
fun kill_learners () = Async_Manager.kill_threads MaShN "learner" 
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use async manager to manage MaSh learners to make sure they get killed cleanly
blanchet
parents:
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diff
changeset

911 
fun running_learners () = Async_Manager.running_threads MaShN "learner" 
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use async manager to manage MaSh learners to make sure they get killed cleanly
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parents:
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changeset

912 

48248  913 
end; 