author | blanchet |
Tue, 22 Jun 2010 18:31:49 +0200 | |
changeset 37505 | d9af5c01dc4a |
parent 37504 | 4308d2bbbca8 |
child 37506 | 32a1ee39c49b |
permissions | -rw-r--r-- |
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(* Title: HOL/Tools/Sledgehammer/sledgehammer_fact_filter.ML |
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Author: Jia Meng, Cambridge University Computer Laboratory, NICTA |
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Author: Jasmin Blanchette, TU Muenchen |
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*) |
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signature SLEDGEHAMMER_FACT_FILTER = |
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use Toplevel.print_state_hook instead of adhoc Proof.atp_hook;
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sig |
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type cnf_thm = Sledgehammer_Fact_Preprocessor.cnf_thm |
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type classrel_clause = Sledgehammer_FOL_Clause.classrel_clause |
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type arity_clause = Sledgehammer_FOL_Clause.arity_clause |
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type hol_clause = Sledgehammer_HOL_Clause.hol_clause |
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type relevance_override = |
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{add: Facts.ref list, |
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del: Facts.ref list, |
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only: bool} |
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val use_natural_form : bool Unsynchronized.ref |
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val name_thms_pair_from_ref : |
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Proof.context -> thm list -> Facts.ref -> string * thm list |
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val tvar_classes_of_terms : term list -> string list |
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val tfree_classes_of_terms : term list -> string list |
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val type_consts_of_terms : theory -> term list -> string list |
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val is_quasi_fol_term : theory -> term -> bool |
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val relevant_facts : |
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bool -> bool -> real -> real -> bool -> int -> bool -> relevance_override |
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-> Proof.context * (thm list * 'a) -> thm list -> cnf_thm list |
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val prepare_clauses : |
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bool -> thm list -> cnf_thm list -> cnf_thm list -> theory |
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-> string vector |
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* (hol_clause list * hol_clause list * hol_clause list |
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* hol_clause list * classrel_clause list * arity_clause list) |
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end; |
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structure Sledgehammer_Fact_Filter : SLEDGEHAMMER_FACT_FILTER = |
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struct |
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open Sledgehammer_FOL_Clause |
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open Sledgehammer_Fact_Preprocessor |
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open Sledgehammer_HOL_Clause |
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(* Experimental feature: Filter theorems in natural form or in CNF? *) |
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val use_natural_form = ref false |
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type relevance_override = |
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{add: Facts.ref list, |
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del: Facts.ref list, |
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only: bool} |
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(***************************************************************) |
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(* Relevance Filtering *) |
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(***************************************************************) |
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fun strip_Trueprop (@{const Trueprop} $ t) = t |
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| strip_Trueprop t = t; |
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(*** constants with types ***) |
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(*An abstraction of Isabelle types*) |
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datatype const_typ = CTVar | CType of string * const_typ list |
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(*Is the second type an instance of the first one?*) |
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fun match_type (CType(con1,args1)) (CType(con2,args2)) = |
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con1=con2 andalso match_types args1 args2 |
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| match_type CTVar _ = true |
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| match_type _ CTVar = false |
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and match_types [] [] = true |
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| match_types (a1::as1) (a2::as2) = match_type a1 a2 andalso match_types as1 as2; |
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(*Is there a unifiable constant?*) |
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fun uni_mem goal_const_tab (c, c_typ) = |
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exists (match_types c_typ) (these (Symtab.lookup goal_const_tab c)) |
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(*Maps a "real" type to a const_typ*) |
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fun const_typ_of (Type (c,typs)) = CType (c, map const_typ_of typs) |
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| const_typ_of (TFree _) = CTVar |
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| const_typ_of (TVar _) = CTVar |
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(*Pairs a constant with the list of its type instantiations (using const_typ)*) |
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fun const_with_typ thy (c,typ) = |
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let val tvars = Sign.const_typargs thy (c,typ) |
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in (c, map const_typ_of tvars) end |
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handle TYPE _ => (c,[]); (*Variable (locale constant): monomorphic*) |
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(*Add a const/type pair to the table, but a [] entry means a standard connective, |
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which we ignore.*) |
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fun add_const_type_to_table (c, ctyps) = |
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Symtab.map_default (c, [ctyps]) |
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(fn [] => [] | ctypss => insert (op =) ctyps ctypss) |
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val fresh_Ex_prefix = "Sledgehammer.Ex." |
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fun get_goal_consts_typs thy goals = |
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let |
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val use_natural_form = !use_natural_form |
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(* Free variables are included, as well as constants, to handle locales. |
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"skolem_id" is included to increase the complexity of theorems containing |
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Skolem functions. In non-CNF form, "Ex" is included but each occurrence |
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is considered fresh, to simulate the effect of Skolemization. *) |
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fun aux (Const (x as (s, _))) = |
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(if s = @{const_name Ex} andalso use_natural_form then |
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(gensym fresh_Ex_prefix, []) |
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else |
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(const_with_typ thy x)) |
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|> add_const_type_to_table |
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| aux (Free x) = add_const_type_to_table (const_with_typ thy x) |
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| aux ((t as Const (@{const_name skolem_id}, _)) $ _) = aux t |
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| aux (t $ u) = aux t #> aux u |
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| aux (Abs (_, _, t)) = aux t |
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| aux _ = I |
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(* Including equality in this list might be expected to stop rules like |
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subset_antisym from being chosen, but for some reason filtering works better |
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with them listed. The logical signs All, Ex, &, and --> are omitted for CNF |
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because any remaining occurrences must be within comprehensions. *) |
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val standard_consts = |
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[@{const_name Trueprop}, @{const_name "==>"}, @{const_name all}, |
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@{const_name "=="}, @{const_name "op |"}, @{const_name Not}, |
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@{const_name "op ="}] @ |
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(if use_natural_form then |
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[@{const_name All}, @{const_name Ex}, @{const_name "op &"}, |
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@{const_name "op -->"}] |
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else |
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[]) |
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in |
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Symtab.empty |> fold (Symtab.update o rpair []) standard_consts |
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|> fold aux goals |
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end |
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(*Inserts a dummy "constant" referring to the theory name, so that relevance |
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takes the given theory into account.*) |
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fun const_prop_of theory_relevant th = |
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if theory_relevant then |
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let |
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val name = Context.theory_name (theory_of_thm th) |
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val t = Const (name ^ ". 1", @{typ bool}) |
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in t $ prop_of th end |
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else |
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prop_of th |
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fun appropriate_prop_of theory_relevant (cnf_thm, (_, orig_thm)) = |
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(if !use_natural_form then orig_thm else cnf_thm) |
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|> const_prop_of theory_relevant |
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(**** Constant / Type Frequencies ****) |
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(*A two-dimensional symbol table counts frequencies of constants. It's keyed first by |
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constant name and second by its list of type instantiations. For the latter, we need |
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a linear ordering on type const_typ list.*) |
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local |
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fun cons_nr CTVar = 0 |
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| cons_nr (CType _) = 1; |
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in |
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fun const_typ_ord TU = |
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case TU of |
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(CType (a, Ts), CType (b, Us)) => |
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(case fast_string_ord(a,b) of EQUAL => dict_ord const_typ_ord (Ts,Us) | ord => ord) |
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| (T, U) => int_ord (cons_nr T, cons_nr U); |
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end; |
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structure CTtab = Table(type key = const_typ list val ord = dict_ord const_typ_ord); |
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fun count_axiom_consts theory_relevant thy axiom = |
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let |
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fun do_const (a, T) = |
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let val (c, cts) = const_with_typ thy (a,T) in |
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(* Two-dimensional table update. Constant maps to types maps to |
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count. *) |
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CTtab.map_default (cts, 0) (Integer.add 1) |
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|> Symtab.map_default (c, CTtab.empty) |
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end |
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fun do_term (Const x) = do_const x |
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| do_term (Free x) = do_const x |
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| do_term (Const (@{const_name skolem_id}, _) $ _) = I |
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| do_term (t $ u) = do_term t #> do_term u |
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| do_term (Abs (_, _, t)) = do_term t |
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| do_term _ = I |
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in axiom |> appropriate_prop_of theory_relevant |> do_term end |
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|
184 |
||
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(**** Actual Filtering Code ****) |
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186 |
||
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(*The frequency of a constant is the sum of those of all instances of its type.*) |
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fun const_frequency const_tab (c, cts) = |
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CTtab.fold (fn (cts', m) => match_types cts cts' ? Integer.add m) |
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(the (Symtab.lookup const_tab c) |
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handle Option.Option => raise Fail ("Const: " ^ c)) 0 |
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(*A surprising number of theorems contain only a few significant constants. |
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These include all induction rules, and other general theorems. Filtering |
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theorems in clause form reveals these complexities in the form of Skolem |
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functions. If we were instead to filter theorems in their natural form, |
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some other method of measuring theorem complexity would become necessary.*) |
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198 |
|
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(* "log" seems best in practice. A constant function of one ignores the constant |
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frequencies. *) |
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fun log_weight2 (x:real) = 1.0 + 2.0 / Math.ln (x + 1.0) |
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202 |
|
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(* Computes a constant's weight, as determined by its frequency. *) |
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val ct_weight = log_weight2 o real oo const_frequency |
24287 | 205 |
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(*Relevant constants are weighted according to frequency, |
24287 | 207 |
but irrelevant constants are simply counted. Otherwise, Skolem functions, |
208 |
which are rare, would harm a clause's chances of being picked.*) |
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fun clause_weight const_tab gctyps consts_typs = |
24287 | 210 |
let val rel = filter (uni_mem gctyps) consts_typs |
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val rel_weight = fold (curry Real.+ o ct_weight const_tab) rel 0.0 |
24287 | 212 |
in |
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rel_weight / (rel_weight + real (length consts_typs - length rel)) |
24287 | 214 |
end; |
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215 |
|
24287 | 216 |
(*Multiplies out to a list of pairs: 'a * 'b list -> ('a * 'b) list -> ('a * 'b) list*) |
30190 | 217 |
fun add_expand_pairs (x,ys) xys = List.foldl (fn (y,acc) => (x,y)::acc) xys ys; |
24287 | 218 |
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fun consts_typs_of_term thy t = |
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Symtab.fold add_expand_pairs (get_goal_consts_typs thy [t]) [] |
24287 | 221 |
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fun pair_consts_typs_axiom theory_relevant thy axiom = |
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(axiom, axiom |> appropriate_prop_of theory_relevant |
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224 |
|> consts_typs_of_term thy) |
24287 | 225 |
|
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226 |
exception CONST_OR_FREE of unit |
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227 |
|
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fun dest_Const_or_Free (Const x) = x |
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| dest_Const_or_Free (Free x) = x |
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230 |
| dest_Const_or_Free _ = raise CONST_OR_FREE () |
24287 | 231 |
|
232 |
(*Look for definitions of the form f ?x1 ... ?xn = t, but not reversed.*) |
|
32994 | 233 |
fun defines thy thm gctypes = |
24287 | 234 |
let val tm = prop_of thm |
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fun defs lhs rhs = |
24287 | 236 |
let val (rator,args) = strip_comb lhs |
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val ct = const_with_typ thy (dest_Const_or_Free rator) |
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238 |
in |
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239 |
forall is_Var args andalso uni_mem gctypes ct andalso |
33038 | 240 |
subset (op =) (Term.add_vars rhs [], Term.add_vars lhs []) |
24287 | 241 |
end |
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242 |
handle CONST_OR_FREE () => false |
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|
243 |
in |
35963 | 244 |
case tm of |
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245 |
@{const Trueprop} $ (Const (@{const_name "op ="}, _) $ lhs $ rhs) => |
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246 |
defs lhs rhs |
35963 | 247 |
| _ => false |
24287 | 248 |
end; |
249 |
||
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250 |
type annotated_clause = cnf_thm * ((string * const_typ list) list) |
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251 |
|
24287 | 252 |
(*For a reverse sort, putting the largest values first.*) |
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253 |
fun compare_pairs ((_, w1), (_, w2)) = Real.compare (w2, w1) |
24287 | 254 |
|
255 |
(*Limit the number of new clauses, to prevent runaway acceptance.*) |
|
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256 |
fun take_best max_new (newpairs : (annotated_clause * real) list) = |
24287 | 257 |
let val nnew = length newpairs |
258 |
in |
|
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259 |
if nnew <= max_new then (map #1 newpairs, []) |
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260 |
else |
24287 | 261 |
let val cls = sort compare_pairs newpairs |
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262 |
val accepted = List.take (cls, max_new) |
24287 | 263 |
in |
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264 |
trace_msg (fn () => ("Number of candidates, " ^ Int.toString nnew ^ |
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265 |
", exceeds the limit of " ^ Int.toString (max_new))); |
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trace_msg (fn () => ("Effective pass mark: " ^ Real.toString (#2 (List.last accepted)))); |
267 |
trace_msg (fn () => "Actually passed: " ^ |
|
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268 |
space_implode ", " (map (fn (((_,((name,_), _)),_),_) => name) accepted)); |
24287 | 269 |
|
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270 |
(map #1 accepted, map #1 (List.drop (cls, max_new))) |
24287 | 271 |
end |
272 |
end; |
|
273 |
||
36922 | 274 |
fun relevant_clauses ctxt relevance_convergence defs_relevant max_new |
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({add, del, ...} : relevance_override) const_tab = |
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276 |
let |
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277 |
val thy = ProofContext.theory_of ctxt |
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val add_thms = maps (ProofContext.get_fact ctxt) add |
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val del_thms = maps (ProofContext.get_fact ctxt) del |
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280 |
fun iter threshold rel_const_tab = |
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281 |
let |
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282 |
fun relevant ([], _) [] = [] (* Nothing added this iteration *) |
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283 |
| relevant (newpairs, rejects) [] = |
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284 |
let |
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val (newrels, more_rejects) = take_best max_new newpairs |
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286 |
val new_consts = maps #2 newrels |
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|
287 |
val rel_const_tab = |
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288 |
rel_const_tab |> fold add_const_type_to_table new_consts |
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val threshold = |
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290 |
threshold + (1.0 - threshold) / relevance_convergence |
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291 |
in |
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292 |
trace_msg (fn () => "relevant this iteration: " ^ |
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293 |
Int.toString (length newrels)); |
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|
294 |
map #1 newrels @ iter threshold rel_const_tab |
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295 |
(more_rejects @ rejects) |
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296 |
end |
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297 |
| relevant (newrels, rejects) |
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298 |
((ax as (clsthm as (_, ((name, n), orig_th)), |
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299 |
consts_typs)) :: axs) = |
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300 |
let |
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|
301 |
val weight = |
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|
302 |
if member Thm.eq_thm add_thms orig_th then 1.0 |
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|
303 |
else if member Thm.eq_thm del_thms orig_th then 0.0 |
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304 |
else clause_weight const_tab rel_const_tab consts_typs |
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305 |
in |
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|
306 |
if weight >= threshold orelse |
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307 |
(defs_relevant andalso |
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|
308 |
defines thy (#1 clsthm) rel_const_tab) then |
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|
309 |
(trace_msg (fn () => name ^ " clause " ^ Int.toString n ^ |
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310 |
" passes: " ^ Real.toString weight); |
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311 |
relevant ((ax, weight) :: newrels, rejects) axs) |
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312 |
else |
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313 |
relevant (newrels, ax :: rejects) axs |
32960
69916a850301
eliminated hard tabulators, guessing at each author's individual tab-width;
wenzelm
parents:
32955
diff
changeset
|
314 |
end |
36182
b136019c5d61
reorganize Sledgehammer's relevance filter slightly
blanchet
parents:
36061
diff
changeset
|
315 |
in |
37344
40f379944c1e
totally bypass Sledgehammer's relevance filter when facts are given using the "(fact1 ... factn)" syntax;
blanchet
parents:
37171
diff
changeset
|
316 |
trace_msg (fn () => "relevant_clauses, current threshold: " ^ |
40f379944c1e
totally bypass Sledgehammer's relevance filter when facts are given using the "(fact1 ... factn)" syntax;
blanchet
parents:
37171
diff
changeset
|
317 |
Real.toString threshold); |
36182
b136019c5d61
reorganize Sledgehammer's relevance filter slightly
blanchet
parents:
36061
diff
changeset
|
318 |
relevant ([], []) |
b136019c5d61
reorganize Sledgehammer's relevance filter slightly
blanchet
parents:
36061
diff
changeset
|
319 |
end |
b136019c5d61
reorganize Sledgehammer's relevance filter slightly
blanchet
parents:
36061
diff
changeset
|
320 |
in iter end |
37505
d9af5c01dc4a
added code to optionally perform fact filtering on the original (non-CNF) formulas
blanchet
parents:
37504
diff
changeset
|
321 |
|
36922 | 322 |
fun relevance_filter ctxt relevance_threshold relevance_convergence |
323 |
defs_relevant max_new theory_relevant relevance_override |
|
37505
d9af5c01dc4a
added code to optionally perform fact filtering on the original (non-CNF) formulas
blanchet
parents:
37504
diff
changeset
|
324 |
thy (axioms : cnf_thm list) goals = |
35966
f8c738abaed8
honor the newly introduced Sledgehammer parameters and fixed the parsing;
blanchet
parents:
35963
diff
changeset
|
325 |
if relevance_threshold > 0.0 then |
35963 | 326 |
let |
37503
c2dfa26b9da6
cosmetics + prevent consideration of inlined Skolem terms in relevance filter
blanchet
parents:
37502
diff
changeset
|
327 |
val const_tab = fold (count_axiom_consts theory_relevant thy) axioms |
c2dfa26b9da6
cosmetics + prevent consideration of inlined Skolem terms in relevance filter
blanchet
parents:
37502
diff
changeset
|
328 |
Symtab.empty |
24287 | 329 |
val goal_const_tab = get_goal_consts_typs thy goals |
35963 | 330 |
val _ = |
331 |
trace_msg (fn () => "Initial constants: " ^ |
|
332 |
commas (Symtab.keys goal_const_tab)) |
|
333 |
val relevant = |
|
36922 | 334 |
relevant_clauses ctxt relevance_convergence defs_relevant max_new |
37344
40f379944c1e
totally bypass Sledgehammer's relevance filter when facts are given using the "(fact1 ... factn)" syntax;
blanchet
parents:
37171
diff
changeset
|
335 |
relevance_override const_tab relevance_threshold |
36922 | 336 |
goal_const_tab |
36220
f3655a3ae1ab
rename Sledgehammer "theory_const" option to "theory_relevant", now that I understand better what it does
blanchet
parents:
36185
diff
changeset
|
337 |
(map (pair_consts_typs_axiom theory_relevant thy) |
f3655a3ae1ab
rename Sledgehammer "theory_const" option to "theory_relevant", now that I understand better what it does
blanchet
parents:
36185
diff
changeset
|
338 |
axioms) |
35963 | 339 |
in |
340 |
trace_msg (fn () => "Total relevant: " ^ Int.toString (length relevant)); |
|
341 |
relevant |
|
342 |
end |
|
343 |
else |
|
344 |
axioms; |
|
24287 | 345 |
|
346 |
(***************************************************************) |
|
19768
9afd9b9c47d0
ATP/res_clasimpset.ML has been merged into res_atp.ML.
mengj
parents:
19746
diff
changeset
|
347 |
(* Retrieving and filtering lemmas *) |
9afd9b9c47d0
ATP/res_clasimpset.ML has been merged into res_atp.ML.
mengj
parents:
19746
diff
changeset
|
348 |
(***************************************************************) |
9afd9b9c47d0
ATP/res_clasimpset.ML has been merged into res_atp.ML.
mengj
parents:
19746
diff
changeset
|
349 |
|
33022
c95102496490
Removal of the unused atpset concept, the atp attribute and some related code.
paulson
parents:
32994
diff
changeset
|
350 |
(*** retrieve lemmas and filter them ***) |
19768
9afd9b9c47d0
ATP/res_clasimpset.ML has been merged into res_atp.ML.
mengj
parents:
19746
diff
changeset
|
351 |
|
9afd9b9c47d0
ATP/res_clasimpset.ML has been merged into res_atp.ML.
mengj
parents:
19746
diff
changeset
|
352 |
(*Hashing to detect duplicate and variant clauses, e.g. from the [iff] attribute*) |
9afd9b9c47d0
ATP/res_clasimpset.ML has been merged into res_atp.ML.
mengj
parents:
19746
diff
changeset
|
353 |
|
22382
dbf09db0a40d
New code to store theorem names in a concise form rather than as fully-qualified.
paulson
parents:
22217
diff
changeset
|
354 |
fun setinsert (x,s) = Symtab.update (x,()) s; |
19768
9afd9b9c47d0
ATP/res_clasimpset.ML has been merged into res_atp.ML.
mengj
parents:
19746
diff
changeset
|
355 |
|
20757
fe84fe0dfd30
Definitions produced by packages are now blacklisted.
paulson
parents:
20661
diff
changeset
|
356 |
(*Reject theorems with names like "List.filter.filter_list_def" or |
21690
552d20ff9a95
Removal of theorem tagging, which the ATP linkup no longer requires.
paulson
parents:
21588
diff
changeset
|
357 |
"Accessible_Part.acc.defs", as these are definitions arising from packages.*) |
20757
fe84fe0dfd30
Definitions produced by packages are now blacklisted.
paulson
parents:
20661
diff
changeset
|
358 |
fun is_package_def a = |
30364
577edc39b501
moved basic algebra of long names from structure NameSpace to Long_Name;
wenzelm
parents:
30291
diff
changeset
|
359 |
let val names = Long_Name.explode a |
21690
552d20ff9a95
Removal of theorem tagging, which the ATP linkup no longer requires.
paulson
parents:
21588
diff
changeset
|
360 |
in |
552d20ff9a95
Removal of theorem tagging, which the ATP linkup no longer requires.
paulson
parents:
21588
diff
changeset
|
361 |
length names > 2 andalso |
552d20ff9a95
Removal of theorem tagging, which the ATP linkup no longer requires.
paulson
parents:
21588
diff
changeset
|
362 |
not (hd names = "local") andalso |
552d20ff9a95
Removal of theorem tagging, which the ATP linkup no longer requires.
paulson
parents:
21588
diff
changeset
|
363 |
String.isSuffix "_def" a orelse String.isSuffix "_defs" a |
552d20ff9a95
Removal of theorem tagging, which the ATP linkup no longer requires.
paulson
parents:
21588
diff
changeset
|
364 |
end; |
20757
fe84fe0dfd30
Definitions produced by packages are now blacklisted.
paulson
parents:
20661
diff
changeset
|
365 |
|
36061 | 366 |
fun mk_clause_table xs = |
367 |
fold (Termtab.update o `(prop_of o fst)) xs Termtab.empty |
|
22382
dbf09db0a40d
New code to store theorem names in a concise form rather than as fully-qualified.
paulson
parents:
22217
diff
changeset
|
368 |
|
36061 | 369 |
fun make_unique xs = |
370 |
Termtab.fold (cons o snd) (mk_clause_table xs) [] |
|
19768
9afd9b9c47d0
ATP/res_clasimpset.ML has been merged into res_atp.ML.
mengj
parents:
19746
diff
changeset
|
371 |
|
36061 | 372 |
(* Remove existing axiom clauses from the conjecture clauses, as this can |
373 |
dramatically boost an ATP's performance (for some reason). *) |
|
374 |
fun subtract_cls ax_clauses = |
|
375 |
filter_out (Termtab.defined (mk_clause_table ax_clauses) o prop_of) |
|
19768
9afd9b9c47d0
ATP/res_clasimpset.ML has been merged into res_atp.ML.
mengj
parents:
19746
diff
changeset
|
376 |
|
37345
4402a2bfa204
make Sledgehammer's "add:" and "del:" syntax work better in the presence of aliases;
blanchet
parents:
37344
diff
changeset
|
377 |
fun all_name_thms_pairs respect_no_atp ctxt chained_ths = |
22382
dbf09db0a40d
New code to store theorem names in a concise form rather than as fully-qualified.
paulson
parents:
22217
diff
changeset
|
378 |
let |
26675 | 379 |
val global_facts = PureThy.facts_of (ProofContext.theory_of ctxt); |
26278 | 380 |
val local_facts = ProofContext.facts_of ctxt; |
33641
af07d9cd86ce
all_valid_thms: more sophisticated check against global + local name space;
wenzelm
parents:
33316
diff
changeset
|
381 |
val full_space = |
af07d9cd86ce
all_valid_thms: more sophisticated check against global + local name space;
wenzelm
parents:
33316
diff
changeset
|
382 |
Name_Space.merge (Facts.space_of global_facts, Facts.space_of local_facts); |
af07d9cd86ce
all_valid_thms: more sophisticated check against global + local name space;
wenzelm
parents:
33316
diff
changeset
|
383 |
|
af07d9cd86ce
all_valid_thms: more sophisticated check against global + local name space;
wenzelm
parents:
33316
diff
changeset
|
384 |
fun valid_facts facts = |
af07d9cd86ce
all_valid_thms: more sophisticated check against global + local name space;
wenzelm
parents:
33316
diff
changeset
|
385 |
(facts, []) |-> Facts.fold_static (fn (name, ths0) => |
37399
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
386 |
if Facts.is_concealed facts name orelse |
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
387 |
(respect_no_atp andalso is_package_def name) orelse |
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
388 |
member (op =) multi_base_blacklist (Long_Name.base_name name) then |
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
389 |
I |
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
390 |
else |
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
391 |
let |
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
392 |
fun check_thms a = |
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
393 |
(case try (ProofContext.get_thms ctxt) a of |
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
394 |
NONE => false |
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
395 |
| SOME ths1 => Thm.eq_thms (ths0, ths1)); |
33641
af07d9cd86ce
all_valid_thms: more sophisticated check against global + local name space;
wenzelm
parents:
33316
diff
changeset
|
396 |
|
37399
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
397 |
val name1 = Facts.extern facts name; |
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
398 |
val name2 = Name_Space.extern full_space name; |
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
399 |
val ths = filter_out is_theorem_bad_for_atps ths0; |
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
400 |
in |
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
401 |
case find_first check_thms [name1, name2, name] of |
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
402 |
NONE => I |
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
403 |
| SOME name' => |
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
404 |
cons (name' |> forall (member Thm.eq_thm chained_ths) ths |
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
405 |
? prefix chained_prefix, ths) |
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
406 |
end) |
26675 | 407 |
in valid_facts global_facts @ valid_facts local_facts end; |
21224 | 408 |
|
33309 | 409 |
fun multi_name a th (n, pairs) = |
410 |
(n + 1, (a ^ "(" ^ Int.toString n ^ ")", th) :: pairs); |
|
21224 | 411 |
|
37498
b426cbdb5a23
removed Sledgehammer's support for the DFG syntax;
blanchet
parents:
37479
diff
changeset
|
412 |
fun add_names (_, []) pairs = pairs |
37399
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
413 |
| add_names (a, [th]) pairs = (a, th) :: pairs |
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
414 |
| add_names (a, ths) pairs = #2 (fold (multi_name a) ths (1, pairs)) |
21224 | 415 |
|
21290
33b6bb5d6ab8
Improvement to classrel clauses: now outputs the minimum needed.
paulson
parents:
21243
diff
changeset
|
416 |
fun is_multi (a, ths) = length ths > 1 orelse String.isSuffix ".axioms" a; |
33b6bb5d6ab8
Improvement to classrel clauses: now outputs the minimum needed.
paulson
parents:
21243
diff
changeset
|
417 |
|
36550
f8da913b6c3a
make sure short theorem names are preferred to composite ones in Sledgehammer;
blanchet
parents:
36473
diff
changeset
|
418 |
(* The single-name theorems go after the multiple-name ones, so that single |
f8da913b6c3a
make sure short theorem names are preferred to composite ones in Sledgehammer;
blanchet
parents:
36473
diff
changeset
|
419 |
names are preferred when both are available. *) |
37344
40f379944c1e
totally bypass Sledgehammer's relevance filter when facts are given using the "(fact1 ... factn)" syntax;
blanchet
parents:
37171
diff
changeset
|
420 |
fun name_thm_pairs respect_no_atp ctxt name_thms_pairs = |
33309 | 421 |
let |
37344
40f379944c1e
totally bypass Sledgehammer's relevance filter when facts are given using the "(fact1 ... factn)" syntax;
blanchet
parents:
37171
diff
changeset
|
422 |
val (mults, singles) = List.partition is_multi name_thms_pairs |
37399
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
423 |
val ps = [] |> fold add_names singles |> fold add_names mults |
36060
4d27652ffb40
reintroduce efficient set structure to collect "no_atp" theorems
blanchet
parents:
36059
diff
changeset
|
424 |
in ps |> respect_no_atp ? filter_out (No_ATPs.member ctxt o snd) end; |
21224 | 425 |
|
37344
40f379944c1e
totally bypass Sledgehammer's relevance filter when facts are given using the "(fact1 ... factn)" syntax;
blanchet
parents:
37171
diff
changeset
|
426 |
fun is_named ("", th) = |
40f379944c1e
totally bypass Sledgehammer's relevance filter when facts are given using the "(fact1 ... factn)" syntax;
blanchet
parents:
37171
diff
changeset
|
427 |
(warning ("No name for theorem " ^ |
40f379944c1e
totally bypass Sledgehammer's relevance filter when facts are given using the "(fact1 ... factn)" syntax;
blanchet
parents:
37171
diff
changeset
|
428 |
Display.string_of_thm_without_context th); false) |
40f379944c1e
totally bypass Sledgehammer's relevance filter when facts are given using the "(fact1 ... factn)" syntax;
blanchet
parents:
37171
diff
changeset
|
429 |
| is_named _ = true |
40f379944c1e
totally bypass Sledgehammer's relevance filter when facts are given using the "(fact1 ... factn)" syntax;
blanchet
parents:
37171
diff
changeset
|
430 |
fun checked_name_thm_pairs respect_no_atp ctxt = |
40f379944c1e
totally bypass Sledgehammer's relevance filter when facts are given using the "(fact1 ... factn)" syntax;
blanchet
parents:
37171
diff
changeset
|
431 |
name_thm_pairs respect_no_atp ctxt |
40f379944c1e
totally bypass Sledgehammer's relevance filter when facts are given using the "(fact1 ... factn)" syntax;
blanchet
parents:
37171
diff
changeset
|
432 |
#> tap (fn ps => trace_msg |
40f379944c1e
totally bypass Sledgehammer's relevance filter when facts are given using the "(fact1 ... factn)" syntax;
blanchet
parents:
37171
diff
changeset
|
433 |
(fn () => ("Considering " ^ Int.toString (length ps) ^ |
40f379944c1e
totally bypass Sledgehammer's relevance filter when facts are given using the "(fact1 ... factn)" syntax;
blanchet
parents:
37171
diff
changeset
|
434 |
" theorems"))) |
40f379944c1e
totally bypass Sledgehammer's relevance filter when facts are given using the "(fact1 ... factn)" syntax;
blanchet
parents:
37171
diff
changeset
|
435 |
#> filter is_named |
19894 | 436 |
|
37344
40f379944c1e
totally bypass Sledgehammer's relevance filter when facts are given using the "(fact1 ... factn)" syntax;
blanchet
parents:
37171
diff
changeset
|
437 |
fun name_thms_pair_from_ref ctxt chained_ths xref = |
40f379944c1e
totally bypass Sledgehammer's relevance filter when facts are given using the "(fact1 ... factn)" syntax;
blanchet
parents:
37171
diff
changeset
|
438 |
let |
40f379944c1e
totally bypass Sledgehammer's relevance filter when facts are given using the "(fact1 ... factn)" syntax;
blanchet
parents:
37171
diff
changeset
|
439 |
val ths = ProofContext.get_fact ctxt xref |
40f379944c1e
totally bypass Sledgehammer's relevance filter when facts are given using the "(fact1 ... factn)" syntax;
blanchet
parents:
37171
diff
changeset
|
440 |
val name = Facts.string_of_ref xref |
40f379944c1e
totally bypass Sledgehammer's relevance filter when facts are given using the "(fact1 ... factn)" syntax;
blanchet
parents:
37171
diff
changeset
|
441 |
|> forall (member Thm.eq_thm chained_ths) ths |
40f379944c1e
totally bypass Sledgehammer's relevance filter when facts are given using the "(fact1 ... factn)" syntax;
blanchet
parents:
37171
diff
changeset
|
442 |
? prefix chained_prefix |
40f379944c1e
totally bypass Sledgehammer's relevance filter when facts are given using the "(fact1 ... factn)" syntax;
blanchet
parents:
37171
diff
changeset
|
443 |
in (name, ths) end |
40f379944c1e
totally bypass Sledgehammer's relevance filter when facts are given using the "(fact1 ... factn)" syntax;
blanchet
parents:
37171
diff
changeset
|
444 |
|
19768
9afd9b9c47d0
ATP/res_clasimpset.ML has been merged into res_atp.ML.
mengj
parents:
19746
diff
changeset
|
445 |
|
21290
33b6bb5d6ab8
Improvement to classrel clauses: now outputs the minimum needed.
paulson
parents:
21243
diff
changeset
|
446 |
(***************************************************************) |
33b6bb5d6ab8
Improvement to classrel clauses: now outputs the minimum needed.
paulson
parents:
21243
diff
changeset
|
447 |
(* Type Classes Present in the Axiom or Conjecture Clauses *) |
33b6bb5d6ab8
Improvement to classrel clauses: now outputs the minimum needed.
paulson
parents:
21243
diff
changeset
|
448 |
(***************************************************************) |
33b6bb5d6ab8
Improvement to classrel clauses: now outputs the minimum needed.
paulson
parents:
21243
diff
changeset
|
449 |
|
32952 | 450 |
fun add_classes (sorts, cset) = List.foldl setinsert cset (flat sorts); |
21290
33b6bb5d6ab8
Improvement to classrel clauses: now outputs the minimum needed.
paulson
parents:
21243
diff
changeset
|
451 |
|
33b6bb5d6ab8
Improvement to classrel clauses: now outputs the minimum needed.
paulson
parents:
21243
diff
changeset
|
452 |
(*Remove this trivial type class*) |
35865 | 453 |
fun delete_type cset = Symtab.delete_safe (the_single @{sort HOL.type}) cset; |
21290
33b6bb5d6ab8
Improvement to classrel clauses: now outputs the minimum needed.
paulson
parents:
21243
diff
changeset
|
454 |
|
33b6bb5d6ab8
Improvement to classrel clauses: now outputs the minimum needed.
paulson
parents:
21243
diff
changeset
|
455 |
fun tvar_classes_of_terms ts = |
29270
0eade173f77e
moved old add_type_XXX, add_term_XXX etc. to structure OldTerm;
wenzelm
parents:
29267
diff
changeset
|
456 |
let val sorts_list = map (map #2 o OldTerm.term_tvars) ts |
30190 | 457 |
in Symtab.keys (delete_type (List.foldl add_classes Symtab.empty sorts_list)) end; |
21290
33b6bb5d6ab8
Improvement to classrel clauses: now outputs the minimum needed.
paulson
parents:
21243
diff
changeset
|
458 |
|
33b6bb5d6ab8
Improvement to classrel clauses: now outputs the minimum needed.
paulson
parents:
21243
diff
changeset
|
459 |
fun tfree_classes_of_terms ts = |
29270
0eade173f77e
moved old add_type_XXX, add_term_XXX etc. to structure OldTerm;
wenzelm
parents:
29267
diff
changeset
|
460 |
let val sorts_list = map (map #2 o OldTerm.term_tfrees) ts |
30190 | 461 |
in Symtab.keys (delete_type (List.foldl add_classes Symtab.empty sorts_list)) end; |
20526
756c4f1fd04c
Extended the blacklist with higher-order theorems. Restructured. Added checks to
paulson
parents:
20457
diff
changeset
|
462 |
|
21373
18f519614978
Arity clauses are now produced only for types and type classes actually used.
paulson
parents:
21311
diff
changeset
|
463 |
(*fold type constructors*) |
18f519614978
Arity clauses are now produced only for types and type classes actually used.
paulson
parents:
21311
diff
changeset
|
464 |
fun fold_type_consts f (Type (a, Ts)) x = fold (fold_type_consts f) Ts (f (a,x)) |
32994 | 465 |
| fold_type_consts _ _ x = x; |
21373
18f519614978
Arity clauses are now produced only for types and type classes actually used.
paulson
parents:
21311
diff
changeset
|
466 |
|
21397
2134b81a0b37
Now includes only types used to instantiate overloaded constants in arity clauses
paulson
parents:
21373
diff
changeset
|
467 |
(*Type constructors used to instantiate overloaded constants are the only ones needed.*) |
2134b81a0b37
Now includes only types used to instantiate overloaded constants in arity clauses
paulson
parents:
21373
diff
changeset
|
468 |
fun add_type_consts_in_term thy = |
37504 | 469 |
let |
470 |
val const_typargs = Sign.const_typargs thy |
|
471 |
fun aux (Const cT) = fold (fold_type_consts setinsert) (const_typargs cT) |
|
472 |
| aux (Abs (_, _, u)) = aux u |
|
473 |
| aux (Const (@{const_name skolem_id}, _) $ _) = I |
|
474 |
| aux (t $ u) = aux t #> aux u |
|
475 |
| aux _ = I |
|
476 |
in aux end |
|
21373
18f519614978
Arity clauses are now produced only for types and type classes actually used.
paulson
parents:
21311
diff
changeset
|
477 |
|
21397
2134b81a0b37
Now includes only types used to instantiate overloaded constants in arity clauses
paulson
parents:
21373
diff
changeset
|
478 |
fun type_consts_of_terms thy ts = |
2134b81a0b37
Now includes only types used to instantiate overloaded constants in arity clauses
paulson
parents:
21373
diff
changeset
|
479 |
Symtab.keys (fold (add_type_consts_in_term thy) ts Symtab.empty); |
21373
18f519614978
Arity clauses are now produced only for types and type classes actually used.
paulson
parents:
21311
diff
changeset
|
480 |
|
18f519614978
Arity clauses are now produced only for types and type classes actually used.
paulson
parents:
21311
diff
changeset
|
481 |
|
19194 | 482 |
(***************************************************************) |
483 |
(* ATP invocation methods setup *) |
|
484 |
(***************************************************************) |
|
485 |
||
37410
2bf7e6136047
adjusted the polymorphism handling of Skolem constants so that proof reconstruction doesn't fail in "equality_inf"
blanchet
parents:
37399
diff
changeset
|
486 |
fun is_quasi_fol_term thy = |
2bf7e6136047
adjusted the polymorphism handling of Skolem constants so that proof reconstruction doesn't fail in "equality_inf"
blanchet
parents:
37399
diff
changeset
|
487 |
Meson.is_fol_term thy o snd o conceal_skolem_somes ~1 [] |
37399
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
488 |
|
20526
756c4f1fd04c
Extended the blacklist with higher-order theorems. Restructured. Added checks to
paulson
parents:
20457
diff
changeset
|
489 |
(*Ensures that no higher-order theorems "leak out"*) |
37399
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
490 |
fun restrict_to_logic thy true cls = |
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
491 |
filter (is_quasi_fol_term thy o prop_of o fst) cls |
37498
b426cbdb5a23
removed Sledgehammer's support for the DFG syntax;
blanchet
parents:
37479
diff
changeset
|
492 |
| restrict_to_logic _ false cls = cls |
20526
756c4f1fd04c
Extended the blacklist with higher-order theorems. Restructured. Added checks to
paulson
parents:
20457
diff
changeset
|
493 |
|
37347
635425a442e8
show more respect for user-specified facts, even if they could lead to unsound proofs + don't throw away "unsound" theorems in "full_type" mode, since they are then sound
blanchet
parents:
37345
diff
changeset
|
494 |
(**** Predicates to detect unwanted clauses (prolific or likely to cause |
635425a442e8
show more respect for user-specified facts, even if they could lead to unsound proofs + don't throw away "unsound" theorems in "full_type" mode, since they are then sound
blanchet
parents:
37345
diff
changeset
|
495 |
unsoundness) ****) |
21470
7c1b59ddcd56
Consolidation of code to "blacklist" unhelpful theorems, including record
paulson
parents:
21431
diff
changeset
|
496 |
|
7c1b59ddcd56
Consolidation of code to "blacklist" unhelpful theorems, including record
paulson
parents:
21431
diff
changeset
|
497 |
(** Too general means, positive equality literal with a variable X as one operand, |
7c1b59ddcd56
Consolidation of code to "blacklist" unhelpful theorems, including record
paulson
parents:
21431
diff
changeset
|
498 |
when X does not occur properly in the other operand. This rules out clearly |
7c1b59ddcd56
Consolidation of code to "blacklist" unhelpful theorems, including record
paulson
parents:
21431
diff
changeset
|
499 |
inconsistent clauses such as V=a|V=b, though it by no means guarantees soundness. **) |
21588 | 500 |
|
37348 | 501 |
fun var_occurs_in_term ix = |
502 |
let |
|
503 |
fun aux (Var (jx, _)) = (ix = jx) |
|
504 |
| aux (t1 $ t2) = aux t1 orelse aux t2 |
|
505 |
| aux (Abs (_, _, t)) = aux t |
|
506 |
| aux _ = false |
|
507 |
in aux end |
|
21470
7c1b59ddcd56
Consolidation of code to "blacklist" unhelpful theorems, including record
paulson
parents:
21431
diff
changeset
|
508 |
|
37348 | 509 |
fun is_record_type T = not (null (Record.dest_recTs T)) |
21470
7c1b59ddcd56
Consolidation of code to "blacklist" unhelpful theorems, including record
paulson
parents:
21431
diff
changeset
|
510 |
|
7c1b59ddcd56
Consolidation of code to "blacklist" unhelpful theorems, including record
paulson
parents:
21431
diff
changeset
|
511 |
(*Unwanted equalities include |
7c1b59ddcd56
Consolidation of code to "blacklist" unhelpful theorems, including record
paulson
parents:
21431
diff
changeset
|
512 |
(1) those between a variable that does not properly occur in the second operand, |
7c1b59ddcd56
Consolidation of code to "blacklist" unhelpful theorems, including record
paulson
parents:
21431
diff
changeset
|
513 |
(2) those between a variable and a record, since these seem to be prolific "cases" thms |
21588 | 514 |
*) |
37348 | 515 |
fun too_general_eqterms (Var (ix,T), t) = |
516 |
not (var_occurs_in_term ix t) orelse is_record_type T |
|
21470
7c1b59ddcd56
Consolidation of code to "blacklist" unhelpful theorems, including record
paulson
parents:
21431
diff
changeset
|
517 |
| too_general_eqterms _ = false; |
7c1b59ddcd56
Consolidation of code to "blacklist" unhelpful theorems, including record
paulson
parents:
21431
diff
changeset
|
518 |
|
35865 | 519 |
fun too_general_equality (Const (@{const_name "op ="}, _) $ x $ y) = |
21470
7c1b59ddcd56
Consolidation of code to "blacklist" unhelpful theorems, including record
paulson
parents:
21431
diff
changeset
|
520 |
too_general_eqterms (x,y) orelse too_general_eqterms(y,x) |
7c1b59ddcd56
Consolidation of code to "blacklist" unhelpful theorems, including record
paulson
parents:
21431
diff
changeset
|
521 |
| too_general_equality _ = false; |
7c1b59ddcd56
Consolidation of code to "blacklist" unhelpful theorems, including record
paulson
parents:
21431
diff
changeset
|
522 |
|
29267 | 523 |
fun has_typed_var tycons = exists_subterm |
524 |
(fn Var (_, Type (a, _)) => member (op =) tycons a | _ => false); |
|
21431
ef9080e7dbbc
Outputs a minimal number of arity clauses. Tidying of blacklist, fixing the blacklisting of thm lists
paulson
parents:
21397
diff
changeset
|
525 |
|
37347
635425a442e8
show more respect for user-specified facts, even if they could lead to unsound proofs + don't throw away "unsound" theorems in "full_type" mode, since they are then sound
blanchet
parents:
37345
diff
changeset
|
526 |
(* Clauses are forbidden to contain variables of these types. The typical reason |
635425a442e8
show more respect for user-specified facts, even if they could lead to unsound proofs + don't throw away "unsound" theorems in "full_type" mode, since they are then sound
blanchet
parents:
37345
diff
changeset
|
527 |
is that they lead to unsoundness. Note that "unit" satisfies numerous |
635425a442e8
show more respect for user-specified facts, even if they could lead to unsound proofs + don't throw away "unsound" theorems in "full_type" mode, since they are then sound
blanchet
parents:
37345
diff
changeset
|
528 |
equations like "?x = ()". The resulting clause will have no type constraint, |
635425a442e8
show more respect for user-specified facts, even if they could lead to unsound proofs + don't throw away "unsound" theorems in "full_type" mode, since they are then sound
blanchet
parents:
37345
diff
changeset
|
529 |
yielding false proofs. Even "bool" leads to many unsound proofs, though only |
635425a442e8
show more respect for user-specified facts, even if they could lead to unsound proofs + don't throw away "unsound" theorems in "full_type" mode, since they are then sound
blanchet
parents:
37345
diff
changeset
|
530 |
for higher-order problems. *) |
635425a442e8
show more respect for user-specified facts, even if they could lead to unsound proofs + don't throw away "unsound" theorems in "full_type" mode, since they are then sound
blanchet
parents:
37345
diff
changeset
|
531 |
val dangerous_types = [@{type_name unit}, @{type_name bool}]; |
22217
a5d983f7113f
Tidying; more debugging information. New reference unwanted_types.
paulson
parents:
22193
diff
changeset
|
532 |
|
37347
635425a442e8
show more respect for user-specified facts, even if they could lead to unsound proofs + don't throw away "unsound" theorems in "full_type" mode, since they are then sound
blanchet
parents:
37345
diff
changeset
|
533 |
(* Clauses containing variables of type "unit" or "bool" or of the form |
635425a442e8
show more respect for user-specified facts, even if they could lead to unsound proofs + don't throw away "unsound" theorems in "full_type" mode, since they are then sound
blanchet
parents:
37345
diff
changeset
|
534 |
"?x = A | ?x = B | ?x = C" are likely to lead to unsound proofs if types are |
635425a442e8
show more respect for user-specified facts, even if they could lead to unsound proofs + don't throw away "unsound" theorems in "full_type" mode, since they are then sound
blanchet
parents:
37345
diff
changeset
|
535 |
omitted. *) |
635425a442e8
show more respect for user-specified facts, even if they could lead to unsound proofs + don't throw away "unsound" theorems in "full_type" mode, since they are then sound
blanchet
parents:
37345
diff
changeset
|
536 |
fun is_dangerous_term _ @{prop True} = true |
635425a442e8
show more respect for user-specified facts, even if they could lead to unsound proofs + don't throw away "unsound" theorems in "full_type" mode, since they are then sound
blanchet
parents:
37345
diff
changeset
|
537 |
| is_dangerous_term full_types t = |
37505
d9af5c01dc4a
added code to optionally perform fact filtering on the original (non-CNF) formulas
blanchet
parents:
37504
diff
changeset
|
538 |
not full_types andalso |
37347
635425a442e8
show more respect for user-specified facts, even if they could lead to unsound proofs + don't throw away "unsound" theorems in "full_type" mode, since they are then sound
blanchet
parents:
37345
diff
changeset
|
539 |
(has_typed_var dangerous_types t orelse |
635425a442e8
show more respect for user-specified facts, even if they could lead to unsound proofs + don't throw away "unsound" theorems in "full_type" mode, since they are then sound
blanchet
parents:
37345
diff
changeset
|
540 |
forall too_general_equality (HOLogic.disjuncts (strip_Trueprop t))) |
21470
7c1b59ddcd56
Consolidation of code to "blacklist" unhelpful theorems, including record
paulson
parents:
21431
diff
changeset
|
541 |
|
37347
635425a442e8
show more respect for user-specified facts, even if they could lead to unsound proofs + don't throw away "unsound" theorems in "full_type" mode, since they are then sound
blanchet
parents:
37345
diff
changeset
|
542 |
fun remove_dangerous_clauses full_types add_thms = |
37501
b5440c78ed3f
leverage new data structure for handling "add:" and "del:"
blanchet
parents:
37500
diff
changeset
|
543 |
filter_out (fn (cnf_th, (_, orig_th)) => |
b5440c78ed3f
leverage new data structure for handling "add:" and "del:"
blanchet
parents:
37500
diff
changeset
|
544 |
not (member Thm.eq_thm add_thms orig_th) andalso |
b5440c78ed3f
leverage new data structure for handling "add:" and "del:"
blanchet
parents:
37500
diff
changeset
|
545 |
is_dangerous_term full_types (prop_of cnf_th)) |
21431
ef9080e7dbbc
Outputs a minimal number of arity clauses. Tidying of blacklist, fixing the blacklisting of thm lists
paulson
parents:
21397
diff
changeset
|
546 |
|
37399
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
547 |
fun is_fol_goal thy = forall (Meson.is_fol_term thy) o map prop_of |
30536
07b4f050e4df
split relevance-filter and writing of problem-files;
immler@in.tum.de
parents:
30364
diff
changeset
|
548 |
|
37347
635425a442e8
show more respect for user-specified facts, even if they could lead to unsound proofs + don't throw away "unsound" theorems in "full_type" mode, since they are then sound
blanchet
parents:
37345
diff
changeset
|
549 |
fun relevant_facts full_types respect_no_atp relevance_threshold |
635425a442e8
show more respect for user-specified facts, even if they could lead to unsound proofs + don't throw away "unsound" theorems in "full_type" mode, since they are then sound
blanchet
parents:
37345
diff
changeset
|
550 |
relevance_convergence defs_relevant max_new theory_relevant |
635425a442e8
show more respect for user-specified facts, even if they could lead to unsound proofs + don't throw away "unsound" theorems in "full_type" mode, since they are then sound
blanchet
parents:
37345
diff
changeset
|
551 |
(relevance_override as {add, del, only}) |
635425a442e8
show more respect for user-specified facts, even if they could lead to unsound proofs + don't throw away "unsound" theorems in "full_type" mode, since they are then sound
blanchet
parents:
37345
diff
changeset
|
552 |
(ctxt, (chained_ths, _)) goal_cls = |
36185
0ee736f08ed0
optimize relevance filter by doing a Table.fold directly rather than destroying the datastructure each time;
blanchet
parents:
36182
diff
changeset
|
553 |
if (only andalso null add) orelse relevance_threshold > 1.0 then |
0ee736f08ed0
optimize relevance filter by doing a Table.fold directly rather than destroying the datastructure each time;
blanchet
parents:
36182
diff
changeset
|
554 |
[] |
0ee736f08ed0
optimize relevance filter by doing a Table.fold directly rather than destroying the datastructure each time;
blanchet
parents:
36182
diff
changeset
|
555 |
else |
0ee736f08ed0
optimize relevance filter by doing a Table.fold directly rather than destroying the datastructure each time;
blanchet
parents:
36182
diff
changeset
|
556 |
let |
0ee736f08ed0
optimize relevance filter by doing a Table.fold directly rather than destroying the datastructure each time;
blanchet
parents:
36182
diff
changeset
|
557 |
val thy = ProofContext.theory_of ctxt |
37345
4402a2bfa204
make Sledgehammer's "add:" and "del:" syntax work better in the presence of aliases;
blanchet
parents:
37344
diff
changeset
|
558 |
val has_override = not (null add) orelse not (null del) |
37399
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
559 |
val is_FO = is_fol_goal thy goal_cls |
37345
4402a2bfa204
make Sledgehammer's "add:" and "del:" syntax work better in the presence of aliases;
blanchet
parents:
37344
diff
changeset
|
560 |
val axioms = |
37399
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
561 |
checked_name_thm_pairs (respect_no_atp andalso not only) ctxt |
37344
40f379944c1e
totally bypass Sledgehammer's relevance filter when facts are given using the "(fact1 ... factn)" syntax;
blanchet
parents:
37171
diff
changeset
|
562 |
(if only then map (name_thms_pair_from_ref ctxt chained_ths) add |
37345
4402a2bfa204
make Sledgehammer's "add:" and "del:" syntax work better in the presence of aliases;
blanchet
parents:
37344
diff
changeset
|
563 |
else all_name_thms_pairs respect_no_atp ctxt chained_ths) |
4402a2bfa204
make Sledgehammer's "add:" and "del:" syntax work better in the presence of aliases;
blanchet
parents:
37344
diff
changeset
|
564 |
|> cnf_rules_pairs thy |
4402a2bfa204
make Sledgehammer's "add:" and "del:" syntax work better in the presence of aliases;
blanchet
parents:
37344
diff
changeset
|
565 |
|> not has_override ? make_unique |
37399
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
566 |
|> not only ? restrict_to_logic thy is_FO |
37501
b5440c78ed3f
leverage new data structure for handling "add:" and "del:"
blanchet
parents:
37500
diff
changeset
|
567 |
|> (if only then |
b5440c78ed3f
leverage new data structure for handling "add:" and "del:"
blanchet
parents:
37500
diff
changeset
|
568 |
I |
b5440c78ed3f
leverage new data structure for handling "add:" and "del:"
blanchet
parents:
37500
diff
changeset
|
569 |
else |
b5440c78ed3f
leverage new data structure for handling "add:" and "del:"
blanchet
parents:
37500
diff
changeset
|
570 |
remove_dangerous_clauses full_types |
b5440c78ed3f
leverage new data structure for handling "add:" and "del:"
blanchet
parents:
37500
diff
changeset
|
571 |
(maps (ProofContext.get_fact ctxt) add)) |
36185
0ee736f08ed0
optimize relevance filter by doing a Table.fold directly rather than destroying the datastructure each time;
blanchet
parents:
36182
diff
changeset
|
572 |
in |
36922 | 573 |
relevance_filter ctxt relevance_threshold relevance_convergence |
574 |
defs_relevant max_new theory_relevant relevance_override |
|
37345
4402a2bfa204
make Sledgehammer's "add:" and "del:" syntax work better in the presence of aliases;
blanchet
parents:
37344
diff
changeset
|
575 |
thy axioms (map prop_of goal_cls) |
4402a2bfa204
make Sledgehammer's "add:" and "del:" syntax work better in the presence of aliases;
blanchet
parents:
37344
diff
changeset
|
576 |
|> has_override ? make_unique |
36185
0ee736f08ed0
optimize relevance filter by doing a Table.fold directly rather than destroying the datastructure each time;
blanchet
parents:
36182
diff
changeset
|
577 |
end |
30536
07b4f050e4df
split relevance-filter and writing of problem-files;
immler@in.tum.de
parents:
30364
diff
changeset
|
578 |
|
31752
19a5f1c8a844
use results of relevance-filter to determine additional clauses;
immler@in.tum.de
parents:
31749
diff
changeset
|
579 |
(* prepare for passing to writer, |
19a5f1c8a844
use results of relevance-filter to determine additional clauses;
immler@in.tum.de
parents:
31749
diff
changeset
|
580 |
create additional clauses based on the information from extra_cls *) |
37498
b426cbdb5a23
removed Sledgehammer's support for the DFG syntax;
blanchet
parents:
37479
diff
changeset
|
581 |
fun prepare_clauses full_types goal_cls axcls extra_cls thy = |
31409
d8537ba165b5
split preparing clauses and writing problemfile;
immler@in.tum.de
parents:
30536
diff
changeset
|
582 |
let |
37399
34f080a12063
proper polymorphic Skolemization of uncached facts + synchronization of caching and relevance filter
blanchet
parents:
37359
diff
changeset
|
583 |
val is_FO = is_fol_goal thy goal_cls |
36061 | 584 |
val ccls = subtract_cls extra_cls goal_cls |
35865 | 585 |
val _ = app (fn th => trace_msg (fn _ => Display.string_of_thm_global thy th)) ccls |
30536
07b4f050e4df
split relevance-filter and writing of problem-files;
immler@in.tum.de
parents:
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val ccltms = map prop_of ccls |
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and axtms = map (prop_of o #1) extra_cls |
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val subs = tfree_classes_of_terms ccltms |
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and supers = tvar_classes_of_terms axtms |
35865 | 590 |
and tycons = type_consts_of_terms thy (ccltms @ axtms) |
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591 |
(*TFrees in conjecture clauses; TVars in axiom clauses*) |
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592 |
val conjectures = make_conjecture_clauses thy ccls |
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593 |
val (_, extra_clauses) = ListPair.unzip (make_axiom_clauses thy extra_cls) |
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594 |
val (clnames, axiom_clauses) = ListPair.unzip (make_axiom_clauses thy axcls) |
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595 |
val helper_clauses = |
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596 |
get_helper_clauses thy is_FO full_types conjectures extra_cls |
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597 |
val (supers', arity_clauses) = make_arity_clauses thy tycons supers |
35865 | 598 |
val classrel_clauses = make_classrel_clauses thy subs supers' |
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599 |
in |
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600 |
(Vector.fromList clnames, |
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601 |
(conjectures, axiom_clauses, extra_clauses, helper_clauses, classrel_clauses, arity_clauses)) |
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602 |
end |
15644 | 603 |
|
15347 | 604 |
end; |