src/HOL/Tools/ATP/recon_transfer_proof.ML
author paulson
Thu Oct 06 10:14:22 2005 +0200 (2005-10-06)
changeset 17772 818cec5f82a4
parent 17746 af59c748371d
child 17775 2679ba74411f
permissions -rw-r--r--
major simplification: removal of the goalstring argument
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(*  ID:         $Id$
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    Author:     Claire Quigley
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    Copyright   2004  University of Cambridge
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*)
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structure Recon_Transfer =
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struct
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open Recon_Parse
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infixr 8 ++; infixr 7 >>; infixr 6 ||;
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val trace_path = Path.basic "transfer_trace";
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fun trace s = if !Output.show_debug_msgs then File.append (File.tmp_path trace_path) s 
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              else ();
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(* Versions that include type information *)
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(* FIXME rename to str_of_thm *)
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fun string_of_thm thm =
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  setmp show_sorts true (Pretty.str_of o Display.pretty_thm) thm;
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(* check separate args in the watcher program for separating strings with a * or ; or something *)
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fun clause_strs_to_string [] str = str
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|   clause_strs_to_string (x::xs) str = clause_strs_to_string xs (str^x^"%")
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fun thmvars_to_string [] str = str
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|   thmvars_to_string (x::xs) str = thmvars_to_string xs (str^x^"%")
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fun proofstep_to_string Axiom = "Axiom()"
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|   proofstep_to_string  (Binary ((a,b), (c,d)))=
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      "Binary(("^(string_of_int a)^","^(string_of_int b)^"),("^(string_of_int c)^","^(string_of_int d)^"))"
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|   proofstep_to_string (Factor (a,b,c)) =
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      "Factor("^(string_of_int a)^","^(string_of_int b)^","^(string_of_int c)^")"
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|   proofstep_to_string  (Para ((a,b), (c,d)))= 
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      "Para(("^(string_of_int a)^","^(string_of_int b)^"),("^(string_of_int c)^","^(string_of_int d)^"))"
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|   proofstep_to_string  (MRR ((a,b), (c,d))) =
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      "MRR(("^(string_of_int a)^","^(string_of_int b)^"),("^(string_of_int c)^","^(string_of_int d)^"))"
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(*|   proofstep_to_string (Rewrite((a,b),(c,d))) =
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      "Rewrite(("^(string_of_int a)^","^(string_of_int b)^"),("^(string_of_int c)^","^(string_of_int d)^"))"*)
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fun proof_to_string (num,(step,clause_strs, thmvars)) =
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 (string_of_int num)^(proofstep_to_string step)^
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 "["^(clause_strs_to_string clause_strs "")^"]["^(thmvars_to_string thmvars "")^"]"
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fun proofs_to_string [] str = str
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|   proofs_to_string (x::xs) str = let val newstr = proof_to_string x 
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                                   in
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                                       proofs_to_string xs (str^newstr)
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                                   end
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fun init_proofstep_to_string (num, step, clause_strs) =
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 (string_of_int num)^" "^(proofstep_to_string step)^" "^
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 (clause_strs_to_string clause_strs "")^" "
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fun init_proofsteps_to_string [] str = str
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|   init_proofsteps_to_string (x::xs) str = let val newstr = init_proofstep_to_string x 
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                                   in
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                                       init_proofsteps_to_string xs (str^newstr)
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                                   end
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(*** get a string representing the Isabelle ordered axioms ***)
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fun origAx_to_string (num,(meta,thmvars)) =
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    let val clause_strs = ReconOrderClauses.get_meta_lits_bracket meta
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    in
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       (string_of_int num)^"OrigAxiom()["^
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       (clause_strs_to_string clause_strs "")^"]["^
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       (thmvars_to_string thmvars "")^"]"
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    end
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fun  origAxs_to_string [] str = str
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|   origAxs_to_string (x::xs) str = let val newstr = origAx_to_string x 
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                                   in
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                                       origAxs_to_string xs (str^newstr)
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                                   end
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(*** get a string representing the Isabelle ordered axioms not used in the spass proof***)
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fun extraAx_to_string (num, (meta,thmvars)) =
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   let val clause_strs = ReconOrderClauses.get_meta_lits_bracket meta
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   in
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      (string_of_int num)^"ExtraAxiom()["^
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      (clause_strs_to_string clause_strs "")^"]"^
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      "["^(thmvars_to_string thmvars "")^"]"
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   end;
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fun extraAxs_to_string [] str = str
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|   extraAxs_to_string (x::xs) str =
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      let val newstr = extraAx_to_string x 
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      in
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	  extraAxs_to_string xs (str^newstr)
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      end;
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fun is_axiom (_,Axiom,str) = true
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|   is_axiom (_,_,_) = false
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fun get_step_nums [] nums = nums
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|   get_step_nums (( num:int,Axiom, str)::xs) nums = get_step_nums xs (nums@[num])
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exception Noassoc;
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fun assoc_snd a [] = raise Noassoc
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  | assoc_snd a ((x, y)::t) = if a = y then x else assoc_snd a t;
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(* change to be something using check_order  instead of a = y --> returns true if ASSERTION not raised in checkorder, false otherwise *)
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(*fun get_assoc_snds [] xs assocs= assocs
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|   get_assoc_snds (x::xs) ys assocs = get_assoc_snds xs ys (assocs@[((assoc_snd x ys))])
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*)
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(*FIX - should this have vars in it? *)
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fun there_out_of_order xs ys = (ReconOrderClauses.checkorder xs ys [] ([],[],[]); true) 
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                               handle _ => false
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fun assoc_out_of_order a [] = raise Noassoc
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|   assoc_out_of_order a ((b,c)::t) = if there_out_of_order a c then b else assoc_out_of_order a t;
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fun get_assoc_snds [] xs assocs= assocs
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|   get_assoc_snds (x::xs) ys assocs = get_assoc_snds xs ys (assocs@[((assoc_out_of_order x ys))])
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fun add_if_not_inlist [] xs newlist = newlist
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|   add_if_not_inlist (y::ys) xs newlist = if (not (y mem xs)) then 
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                                      add_if_not_inlist ys xs (y::newlist)
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                                        else add_if_not_inlist ys xs (newlist)
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(*Flattens a list of list of strings to one string*)
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fun onestr ls = String.concat (map String.concat ls);
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fun is_clasimp_ax clasimp_num n = n <= clasimp_num 
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fun subone x = x - 1
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fun numstr [] = ""
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|   numstr (x::xs) = (string_of_int x)^"%"^(numstr xs)
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(* retrieve the axioms that were obtained from the clasimpset *)
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fun get_clasimp_cls (clause_arr: (ResClause.clause * thm) array) step_nums = 
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    let val clasimp_nums = List.filter (is_clasimp_ax (Array.length clause_arr - 1)) 
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	                   (map subone step_nums)
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    in
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	map (fn x =>  Array.sub(clause_arr, x)) clasimp_nums
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    end
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(*****************************************************)
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(* get names of clasimp axioms used                  *)
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(*****************************************************)
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 fun get_axiom_names step_nums clause_arr =
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   let 
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     (* not sure why this is necessary again, but seems to be *)
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      val _ = (print_mode := (Library.gen_rems (op =) (! print_mode, ["xsymbols", "symbols"])))
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     (***********************************************)
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     (* here need to add the clauses from clause_arr*)
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     (***********************************************)
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      val clasimp_names_cls = get_clasimp_cls clause_arr step_nums 
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      val clasimp_names = map (ResClause.get_axiomName o #1) clasimp_names_cls
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      val _ = (print_mode := (["xsymbols", "symbols"] @ ! print_mode))
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   in
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      clasimp_names
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   end
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fun get_axiom_names_spass proofstr clause_arr =
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  let (* parse spass proof into datatype *)
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      val _ = trace ("\nStarted parsing:\n" ^ proofstr)
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      val proof_steps = parse (#1(lex proofstr))
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      val _ = trace "\nParsing finished!"
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      (* get axioms as correctly numbered clauses w.r.t. the Spass proof *)
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  in
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    get_axiom_names (get_step_nums (List.filter is_axiom proof_steps) []) clause_arr
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  end;
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 (*String contains multiple lines.
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  A list consisting of the first number in each line is returned. *)
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fun get_linenums proofstr = 
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  let val numerics = String.tokens (not o Char.isDigit)
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      fun firstno [] = NONE
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        | firstno (x::xs) = Int.fromString x
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      val lines = String.tokens (fn c => c = #"\n") proofstr
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  in  List.mapPartial (firstno o numerics) lines  end
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fun get_axiom_names_e proofstr clause_arr  =
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   get_axiom_names (get_linenums proofstr) clause_arr;
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 (*String contains multiple lines. We want those of the form 
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     "*********** [448, input] ***********".
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  A list consisting of the first number in each line is returned. *)
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fun get_vamp_linenums proofstr = 
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  let val toks = String.tokens (not o Char.isAlphaNum)
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      fun inputno [n,"input"] = Int.fromString n
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        | inputno _ = NONE
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      val lines = String.tokens (fn c => c = #"\n") proofstr
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  in  List.mapPartial (inputno o toks) lines  end
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fun get_axiom_names_vamp proofstr clause_arr  =
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   get_axiom_names (get_vamp_linenums proofstr) clause_arr;
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(***********************************************)
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(* get axioms for reconstruction               *)
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(***********************************************)
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fun numclstr (vars, []) str = str
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|   numclstr ( vars, ((num, thm)::rest)) str =
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      let val newstr = str^(string_of_int num)^" "^(string_of_thm thm)^" "
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      in
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        numclstr  (vars,rest) newstr
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      end
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fun addvars c (a,b)  = (a,b,c)
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fun get_axioms_used proof_steps thms clause_arr  =
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  let 
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     val _=  (print_mode := (Library.gen_rems (op =) (! print_mode, ["xsymbols", "symbols"])))
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     val axioms = (List.filter is_axiom) proof_steps
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     val step_nums = get_step_nums axioms []
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     val clauses = make_clauses thms    (*FIXME: must this be repeated??*)
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     val vars = map thm_vars clauses
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     val distvars = distinct (fold append vars [])
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     val clause_terms = map prop_of clauses  
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     val clause_frees = List.concat (map term_frees clause_terms)
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     val frees = map lit_string_with_nums clause_frees;
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     val distfrees = distinct frees
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     val metas = map Meson.make_meta_clause clauses
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     val ax_strs = map #3 axioms
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     (* literals of -all- axioms, not just those used by spass *)
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     val meta_strs = map ReconOrderClauses.get_meta_lits metas
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     val metas_and_strs = ListPair.zip (metas,meta_strs)
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     val _ = trace ("\nAxioms: " ^ onestr ax_strs)
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     val _ = trace ("\nMeta_strs: " ^ onestr meta_strs)
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     (* get list of axioms as thms with their variables *)
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     val ax_metas = get_assoc_snds ax_strs metas_and_strs []
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     val ax_vars = map thm_vars ax_metas
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     val ax_with_vars = ListPair.zip (ax_metas,ax_vars)
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     (* get list of extra axioms as thms with their variables *)
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     val extra_metas = add_if_not_inlist metas ax_metas []
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     val extra_vars = map thm_vars extra_metas
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     val extra_with_vars = if (not (extra_metas = []) ) 
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			   then ListPair.zip (extra_metas,extra_vars)
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			   else []
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  in
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     (distfrees,distvars, extra_with_vars,ax_with_vars, ListPair.zip (step_nums,ax_metas))
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  end;
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(*********************************************************************)
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(* Pass in spass string of proof and string version of isabelle goal *)
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(* Get out reconstruction steps as a string to be sent to Isabelle   *)
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(*********************************************************************)
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fun rules_to_string [] = "NONE"
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  | rules_to_string xs = "[" ^ space_implode ", " xs ^ "]"
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(*The signal handler in watcher.ML must be able to read the output of this.*)
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fun prover_lemma_list_aux getax proofstr probfile toParent ppid clause_arr = 
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 let val _ = trace
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               ("\nGetting lemma names. proofstr is " ^ proofstr ^
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                "\nprobfile is " ^ probfile ^
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                "  num of clauses is " ^ string_of_int (Array.length clause_arr))
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     val axiom_names = getax proofstr clause_arr
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     val ax_str = rules_to_string axiom_names
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    in 
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	 trace ("\nDone. Lemma list is " ^ ax_str);
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         TextIO.output (toParent, "Success. Lemmas used in automatic proof: " ^
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                  ax_str ^ "\n");
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	 TextIO.output (toParent, probfile ^ "\n");
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	 TextIO.flushOut toParent;
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	 Posix.Process.kill(Posix.Process.K_PROC ppid, Posix.Signal.usr2)
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    end
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    handle exn => (*FIXME: exn handler is too general!*)
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     (trace ("\nprover_lemma_list_aux: In exception handler: " ^ 
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             Toplevel.exn_message exn);
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      TextIO.output (toParent, "Translation failed for the proof: " ^ 
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                     String.toString proofstr ^ "\n");
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      TextIO.output (toParent, probfile);
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      TextIO.flushOut toParent;
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      Posix.Process.kill(Posix.Process.K_PROC ppid, Posix.Signal.usr2));
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val e_lemma_list = prover_lemma_list_aux get_axiom_names_e;
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val vamp_lemma_list = prover_lemma_list_aux get_axiom_names_vamp;
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val spass_lemma_list = prover_lemma_list_aux get_axiom_names_spass;
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(**** Full proof reconstruction for SPASS (not really working) ****)
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fun spass_reconstruct proofstr probfile toParent ppid thms clause_arr = 
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  let val _ = trace ("\nspass_reconstruct. Proofstr is "^proofstr)
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      val tokens = #1(lex proofstr)
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paulson@16905
   321
  (* parse spass proof into datatype *)
paulson@16905
   322
  (***********************************)
paulson@17306
   323
      val proof_steps = parse tokens
paulson@17718
   324
      val _ = trace "\nParsing finished"
paulson@16905
   325
    
paulson@16905
   326
  (************************************)
paulson@16905
   327
  (* recreate original subgoal as thm *)
paulson@16905
   328
  (************************************)
paulson@16905
   329
      (* get axioms as correctly numbered clauses w.r.t. the Spass proof *)
paulson@16905
   330
      (* need to get prems_of thm, then get right one of the prems, relating to whichever*)
paulson@16905
   331
      (* subgoal this is, and turn it into meta_clauses *)
paulson@16905
   332
      (* should prob add array and table here, so that we can get axioms*)
paulson@16905
   333
      (* produced from the clasimpset rather than the problem *)
paulson@17484
   334
      val (frees,vars,extra_with_vars ,ax_with_vars,numcls) = get_axioms_used proof_steps  thms clause_arr
paulson@16905
   335
      
paulson@16905
   336
      (*val numcls_string = numclstr ( vars, numcls) ""*)
paulson@17718
   337
      val _ = trace "\ngot axioms"
paulson@16061
   338
	
paulson@16905
   339
  (************************************)
paulson@16905
   340
  (* translate proof                  *)
paulson@16905
   341
  (************************************)
paulson@17718
   342
      val _ = trace ("\nabout to translate proof, steps: "
paulson@17718
   343
                       ^ (init_proofsteps_to_string proof_steps ""))
paulson@16905
   344
      val (newthm,proof) = translate_proof numcls  proof_steps vars
paulson@17718
   345
      val _ = trace ("translated proof, steps: "^(init_proofsteps_to_string proof_steps ""))
paulson@16905
   346
  (***************************************************)
paulson@16905
   347
  (* transfer necessary steps as strings to Isabelle *)
paulson@16905
   348
  (***************************************************)
paulson@16905
   349
      (* turn the proof into a string *)
paulson@16905
   350
      val reconProofStr = proofs_to_string proof ""
paulson@16905
   351
      (* do the bit for the Isabelle ordered axioms at the top *)
paulson@16905
   352
      val ax_nums = map #1 numcls
paulson@16905
   353
      val ax_strs = map ReconOrderClauses.get_meta_lits_bracket (map #2 numcls)
paulson@16905
   354
      val numcls_strs = ListPair.zip (ax_nums,ax_strs)
paulson@16905
   355
      val num_cls_vars =  map (addvars vars) numcls_strs;
paulson@16905
   356
      val reconIsaAxStr = origAxs_to_string (ListPair.zip (ax_nums,ax_with_vars)) ""
paulson@16905
   357
      
paulson@16905
   358
      val extra_nums = if (not (extra_with_vars = [])) then (1 upto (length extra_with_vars))
paulson@16905
   359
                       else []
paulson@16905
   360
      val reconExtraAxStr = extraAxs_to_string ( ListPair.zip (extra_nums,extra_with_vars)) ""
paulson@16905
   361
      val frees_str = "["^(thmvars_to_string frees "")^"]"
paulson@16905
   362
      val reconstr = (frees_str^reconExtraAxStr^reconIsaAxStr^reconProofStr)
paulson@17718
   363
      val _ = trace ("\nReconstruction:\n" ^ reconstr)
paulson@16905
   364
  in 
paulson@16905
   365
       TextIO.output (toParent, reconstr^"\n");
paulson@17772
   366
       TextIO.output (toParent, probfile ^ "\n");
paulson@16905
   367
       TextIO.flushOut toParent;
paulson@16905
   368
       Posix.Process.kill(Posix.Process.K_PROC ppid, Posix.Signal.usr2);
paulson@17583
   369
       all_tac
paulson@16905
   370
  end
paulson@17484
   371
  handle exn => (*FIXME: exn handler is too general!*)
paulson@17718
   372
   (trace ("\nspass_reconstruct. In exception handler: " ^ Toplevel.exn_message exn);
paulson@17772
   373
    TextIO.output (toParent,"Translation failed for SPASS proof:"^
paulson@17746
   374
         String.toString proofstr ^"\n");
paulson@17772
   375
    TextIO.output (toParent, probfile ^ "\n");
paulson@17422
   376
    TextIO.flushOut toParent;
paulson@17583
   377
    Posix.Process.kill(Posix.Process.K_PROC ppid, Posix.Signal.usr2); all_tac)
quigley@15642
   378
quigley@15642
   379
(**********************************************************************************)
quigley@15642
   380
(* At other end, want to turn back into datatype so can apply reconstruct_proof.  *)
quigley@15642
   381
(* This will be done by the signal handler                                        *)
quigley@15642
   382
(**********************************************************************************)
quigley@15642
   383
quigley@15642
   384
(* Parse in the string version of the proof steps for reconstruction *)
quigley@15642
   385
(* Isar format: cl1 [BINARY 0 cl2 0];cl1 [PARAMOD 0 cl2 0]; cl1 [DEMOD 0 cl2];cl1 [FACTOR 1 2];*)
quigley@15642
   386
quigley@15642
   387
quigley@15642
   388
 val term_numstep =
quigley@15642
   389
        (number ++ (a (Other ",")) ++ number) >> (fn (a, (_, c)) => (a, c))
quigley@15642
   390
quigley@15642
   391
val extraaxiomstep = (a (Word "ExtraAxiom"))++ (a (Other "(")) ++(a (Other ")"))
quigley@15642
   392
            >> (fn (_) => ExtraAxiom)
quigley@15642
   393
quigley@15642
   394
quigley@15642
   395
quigley@15642
   396
val origaxiomstep = (a (Word "OrigAxiom"))++ (a (Other "(")) ++(a (Other ")"))
quigley@15642
   397
            >> (fn (_) => OrigAxiom)
quigley@15642
   398
quigley@15642
   399
quigley@15642
   400
 val axiomstep = (a (Word "Axiom"))++ (a (Other "(")) ++(a (Other ")"))
quigley@15642
   401
            >> (fn (_) => Axiom)
quigley@15642
   402
     
quigley@15642
   403
quigley@15642
   404
quigley@15642
   405
      
quigley@15642
   406
 val binarystep = (a (Word "Binary")) ++ (a (Other "(")) ++ (a (Other "(")) 
quigley@15642
   407
                   ++ term_numstep  ++ (a (Other ")")) ++ (a (Other ","))
quigley@15642
   408
                   ++ (a (Other "(")) ++ term_numstep ++ (a (Other ")")) ++ (a (Other ")"))
quigley@15642
   409
            >> (fn (_, (_, (_, (c, (_,(_,(_, (e,(_,_))))))))) => Binary (c,e))
quigley@15642
   410
      
quigley@15642
   411
quigley@15642
   412
 val parastep = (a (Word "Para")) ++ (a (Other "(")) ++ (a (Other "(")) 
quigley@15642
   413
                   ++ term_numstep  ++ (a (Other ")")) ++ (a (Other ","))
quigley@15642
   414
                   ++ (a (Other "(")) ++ term_numstep ++ (a (Other ")")) ++ (a (Other ")"))
quigley@15642
   415
            >> (fn (_, (_, (_, (c, (_,(_,(_, (e,(_,_))))))))) => Para(c, e))
quigley@15642
   416
      
quigley@15642
   417
 val mrrstep = (a (Word "MRR")) ++ (a (Other "(")) ++ (a (Other "(")) 
quigley@15642
   418
                   ++ term_numstep  ++ (a (Other ")")) ++ (a (Other ","))
quigley@15642
   419
                   ++ (a (Other "(")) ++ term_numstep ++ (a (Other ")")) ++ (a (Other ")"))
quigley@15642
   420
            >> (fn (_, (_, (_, (c, (_,(_,(_, (e,(_,_))))))))) => MRR(c, e))
quigley@15642
   421
      
quigley@15642
   422
quigley@15642
   423
 val factorstep = (a (Word "Factor")) ++ (a (Other "("))
quigley@15642
   424
                    ++ number ++ (a (Other ","))
quigley@15642
   425
                       ++ number ++ (a (Other ","))
quigley@15642
   426
                       ++ number ++  (a (Other ")"))
quigley@15642
   427
                   
quigley@15642
   428
            >> (fn (_, (_, (c, (_, (e,(_,(f,_))))))) =>  Factor (c,e,f))
quigley@15642
   429
quigley@15642
   430
quigley@16548
   431
(*val rewritestep = (a (Word "Rewrite"))  ++ (a (Other "(")) ++ (a (Other "(")) 
quigley@15642
   432
                   ++ term_numstep  ++ (a (Other ")")) ++ (a (Other ","))
quigley@15642
   433
                   ++ (a (Other "(")) ++ term_numstep ++ (a (Other ")")) ++ (a (Other ")"))
quigley@16548
   434
            >> (fn (_, (_, (_, (c, (_,(_,(_, (e,(_,_))))))))) => Rewrite (c,e))*)
quigley@15642
   435
quigley@15642
   436
val obviousstep = (a (Word "Obvious")) ++ (a (Other "(")) 
quigley@15642
   437
                   ++ term_numstep  ++ (a (Other ")")) 
quigley@15642
   438
            >> (fn (_, (_, (c,_))) => Obvious (c))
quigley@15642
   439
quigley@16548
   440
 val methodstep = extraaxiomstep || origaxiomstep || axiomstep ||binarystep || factorstep|| parastep || mrrstep || (*rewritestep ||*) obviousstep
quigley@15642
   441
quigley@15642
   442
quigley@15642
   443
 val number_list_step =
paulson@15739
   444
        ( number ++ many ((a (Other ",") ++ number)>> #2))
quigley@15642
   445
        >> (fn (a,b) => (a::b))
quigley@15642
   446
        
quigley@15642
   447
 val numberlist_step = a (Other "[")  ++ a (Other "]")
quigley@15642
   448
                        >>(fn (_,_) => ([]:int list))
quigley@15642
   449
                       || a (Other "[") ++ number_list_step ++ a (Other "]")
quigley@15642
   450
                        >>(fn (_,(a,_)) => a)
quigley@15642
   451
                    
quigley@15642
   452
quigley@15642
   453
quigley@15642
   454
(** change this to allow P (x U) *)
paulson@17306
   455
 fun arglist_step input = 
paulson@17306
   456
   ( word ++ many word >> (fn (a, b) => (a^" "^(space_implode " " b)))
paulson@17306
   457
    ||word >> (fn (a) => (a)))input
quigley@15642
   458
                
quigley@15642
   459
quigley@15642
   460
fun literal_step input = (word ++ a (Other "(") ++ arglist_step ++  a (Other ")")
quigley@15642
   461
                                          >>(fn (a, (b, (c,d))) => (a^" ("^(c)^")"))
quigley@15642
   462
                        || arglist_step >> (fn (a) => (a)))input
quigley@15642
   463
                           
quigley@15642
   464
quigley@15642
   465
quigley@15642
   466
(* fun term_step input = (a (Other "~") ++ arglist_step ++ a (Other "%")>> (fn (a,(b,c)) => ("~ "^b))
quigley@15642
   467
                     ||  arglist_step ++ a (Other "%")>> (fn (a,b) => a ))input
quigley@15642
   468
*)
quigley@15642
   469
quigley@15642
   470
quigley@15642
   471
 fun term_step input = (a (Other "~") ++ literal_step ++ a (Other "%")>> (fn (a,(b,c)) => ("~ "^b))
quigley@15642
   472
                     ||  literal_step ++ a (Other "%")>> (fn (a,b) => a ))input
quigley@15642
   473
quigley@15642
   474
quigley@15642
   475
         
quigley@15642
   476
quigley@15642
   477
 val term_list_step =
quigley@15642
   478
        (  term_step ++ many ( term_step))
quigley@15642
   479
        >> (fn (a,b) => (a::b))
quigley@15642
   480
        
quigley@15642
   481
 
quigley@15642
   482
val term_lists_step = a (Other "[")  ++ a (Other "]")
quigley@15642
   483
                        >>(fn (_,_) => ([]:string list))
quigley@15642
   484
                       || a (Other "[") ++ term_list_step ++ a (Other "]")
quigley@15642
   485
                        >>(fn (_,(a,_)) => a)
quigley@15642
   486
                     
quigley@15642
   487
quigley@15642
   488
 val linestep = number ++ methodstep ++ term_lists_step ++ term_lists_step
quigley@15642
   489
                >> (fn (a, (b, (c,d))) => (a,(b,c,d)))
quigley@15642
   490
    
quigley@15642
   491
 val lines_step = many linestep
quigley@15642
   492
paulson@15739
   493
 val alllines_step = (term_lists_step ++ lines_step ) ++ finished >> #1
quigley@15642
   494
    
paulson@15739
   495
 val parse_step = #1 o alllines_step
quigley@15642
   496
quigley@15642
   497
quigley@15642
   498
 (*
quigley@15642
   499
val reconstr ="[P%x%xa%xb%]1OrigAxiom()[P x%~ P U%][U%]3OrigAxiom()[P U%~ P x%][U%]5OrigAxiom()[~ P xa%~ P U%][U%]7OrigAxiom()[P U%P xb%][U%]1Axiom()[P x%~ P U%][U%]3Axiom()[P U%~ P x%][U%]5Axiom()[~ P U%~ P xa%][U%]7Axiom()[P U%P xb%][U%]9Factor(5,0,1)[~ P xa%][]10Binary((9,0),(3,0))[~ P x%][]11Binary((10,0),(1,0))[~ P U%][U%]12Factor(7,0,1)[P xb%][]14Binary((11,0),(12,0))[][]%(EX x::'a::type. ALL y::'a::type. (P::'a::type => bool) x = P y) -->(EX x::'a::type. P x) = (ALL y::'a::type. P y)"
quigley@15642
   500
*)
quigley@15642
   501
quigley@15642
   502
(************************************************************)
quigley@15642
   503
(* Construct an Isar style proof from a list of proof steps *)
quigley@15642
   504
(************************************************************)
quigley@15642
   505
(* want to assume all axioms, then do haves for the other clauses*)
quigley@15642
   506
(* then show for the last step *)
quigley@15642
   507
quigley@15642
   508
(* replace ~ by not here *)
paulson@17317
   509
val change_nots = String.translate (fn c => if c = #"~" then "\\<not>" else str c);
quigley@15642
   510
paulson@17317
   511
fun clstrs_to_string xs = space_implode "; " (map change_nots xs);
quigley@15642
   512
quigley@15642
   513
fun thmvars_to_quantstring [] str = str
quigley@15642
   514
|   thmvars_to_quantstring (x::[]) str =str^x^". "
quigley@15642
   515
|   thmvars_to_quantstring (x::xs) str = thmvars_to_quantstring xs (str^(x^" "))
quigley@15642
   516
quigley@15642
   517
paulson@17317
   518
fun clause_strs_to_isar clstrs [] =
paulson@17317
   519
      "\"\\<lbrakk>"^(clstrs_to_string clstrs)^"\\<rbrakk> \\<Longrightarrow> False\""
paulson@17317
   520
|   clause_strs_to_isar clstrs thmvars =
paulson@17317
   521
      "\"\\<And>"^(thmvars_to_quantstring thmvars "")^
paulson@17317
   522
      "\\<lbrakk>"^(clstrs_to_string clstrs)^"\\<rbrakk> \\<Longrightarrow> False\""
quigley@15642
   523
paulson@17317
   524
fun frees_to_isar_str clstrs = space_implode " " (map change_nots clstrs)
quigley@15642
   525
quigley@15642
   526
quigley@15642
   527
(***********************************************************************)
quigley@15642
   528
(* functions for producing assumptions for the Isabelle ordered axioms *)
quigley@15642
   529
(***********************************************************************)
quigley@15642
   530
(*val str = "[P%x%xa%xb%]1OrigAxiom()[P x%~ P U%][U%]3OrigAxiom()[P U%~ P x%][U%]5OrigAxiom()[~ P xa%~ P U%][U%]7OrigAxiom()[P U%P xb%][U%]1Axiom()[P x%~ P U%][U%]3Axiom()[P U%~ P x%][U%]5Axiom()[~ P U%~ P xa%][U%]7Axiom()[P U%P xb%][U%]9Factor(5,0,1)[~ P xa%][]10Binary((9,0),(3,0))[~ P x%][]11Binary((10,0),(1,0))[~ P U%][U%]12Factor(7,0,1)[P xb%][]14Binary((11,0),(12,0))[][]";       
quigley@15642
   531
num, rule, clausestrs, vars*)
quigley@15642
   532
quigley@15642
   533
quigley@15642
   534
(* assume the extra clauses - not used in Spass proof *)
quigley@15642
   535
quigley@15642
   536
fun is_extraaxiom_step ( num:int,(ExtraAxiom, str, tstr)) = true
quigley@15642
   537
|   is_extraaxiom_step (num, _) = false
quigley@15642
   538
quigley@15642
   539
fun get_extraaxioms xs = List.filter (is_extraaxiom_step) ( xs)
quigley@15642
   540
quigley@15642
   541
fun assume_isar_extraaxiom [] str  = str
quigley@15642
   542
|   assume_isar_extraaxiom ((numb,(step, clstr, thmvars))::xs) str  = assume_isar_extraaxiom xs (str^"and cl"^(string_of_int numb)^"': "^(clause_strs_to_isar clstr thmvars)^"\n " )
quigley@15642
   543
quigley@15642
   544
quigley@15642
   545
quigley@15642
   546
fun assume_isar_extraaxioms  [] = ""
quigley@15642
   547
|assume_isar_extraaxioms ((numb,(step, clstrs, thmstrs))::xs) = let val str = "assume cl"^(string_of_int numb)^"': "^(clause_strs_to_isar clstrs thmstrs)^"\n" 
quigley@15642
   548
                                         in
quigley@15642
   549
                                             assume_isar_extraaxiom xs str
quigley@15642
   550
                                         end
quigley@15642
   551
quigley@15642
   552
(* assume the Isabelle ordered clauses *)
quigley@15642
   553
quigley@15642
   554
fun is_origaxiom_step ( num:int,(OrigAxiom, str, tstr)) = true
quigley@15642
   555
|   is_origaxiom_step (num, _) = false
quigley@15642
   556
quigley@15642
   557
fun get_origaxioms xs = List.filter (is_origaxiom_step) ( xs)
quigley@15642
   558
quigley@15642
   559
fun assume_isar_origaxiom [] str  = str
quigley@15642
   560
|   assume_isar_origaxiom ((numb,(step, clstr, thmvars))::xs) str  = assume_isar_origaxiom xs (str^"and cl"^(string_of_int numb)^"': "^(clause_strs_to_isar clstr thmvars)^"\n " )
quigley@15642
   561
quigley@15642
   562
quigley@15642
   563
quigley@15642
   564
fun assume_isar_origaxioms ((numb,(step, clstrs, thmstrs))::xs) = let val str = "assume cl"^(string_of_int numb)^"': "^(clause_strs_to_isar clstrs thmstrs)^"\n" 
quigley@15642
   565
                                         in
quigley@15642
   566
                                             assume_isar_origaxiom xs str
quigley@15642
   567
                                         end
quigley@15642
   568
quigley@15642
   569
quigley@15642
   570
quigley@15642
   571
fun is_axiom_step ( num:int,(Axiom, str, tstr)) = true
quigley@15642
   572
|   is_axiom_step (num, _) = false
quigley@15642
   573
quigley@15642
   574
fun get_axioms xs = List.filter  (is_axiom_step) ( xs)
quigley@15642
   575
quigley@15642
   576
fun have_isar_axiomline (numb,(step, clstrs, thmstrs))="have cl"^(string_of_int numb)^": "^(clause_strs_to_isar clstrs thmstrs)^"\n"
quigley@15642
   577
quigley@15642
   578
fun  by_isar_axiomline (numb,(step, clstrs, thmstrs))="by (rule cl"^ (string_of_int numb)^"') \n"
quigley@15642
   579
quigley@15642
   580
quigley@15642
   581
fun isar_axiomline (numb, (step, clstrs, thmstrs))  = (have_isar_axiomline (numb,(step,clstrs, thmstrs )))^( by_isar_axiomline(numb,(step,clstrs, thmstrs )) )
quigley@15642
   582
quigley@15642
   583
quigley@15642
   584
fun isar_axiomlines [] str = str
quigley@15642
   585
|   isar_axiomlines (x::xs) str = isar_axiomlines xs (str^(isar_axiomline x))
quigley@15642
   586
quigley@15642
   587
quigley@15642
   588
fun have_isar_line (numb,(step, clstrs, thmstrs))="have cl"^(string_of_int numb)^": "^(clause_strs_to_isar clstrs thmstrs)^"\n"
quigley@16357
   589
(*FIX: ask Larry to add and mrr attribute *)
quigley@15642
   590
paulson@16091
   591
fun by_isar_line ((Binary ((a,b), (c,d)))) = 
paulson@16091
   592
    "by(rule cl"^
paulson@16091
   593
		(string_of_int a)^" [binary "^(string_of_int b)^" cl"^
paulson@16091
   594
		(string_of_int c)^" "^(string_of_int d)^"])\n"
quigley@16357
   595
|by_isar_line ((MRR ((a,b), (c,d)))) = 
quigley@16357
   596
    "by(rule cl"^
quigley@16357
   597
		(string_of_int a)^" [binary "^(string_of_int b)^" cl"^
quigley@16357
   598
		(string_of_int c)^" "^(string_of_int d)^"])\n"
paulson@16091
   599
|   by_isar_line ( (Para ((a,b), (c,d)))) =
paulson@16091
   600
    "by (rule cl"^
paulson@16091
   601
		(string_of_int a)^" [paramod "^(string_of_int b)^" cl"^
paulson@16091
   602
		(string_of_int c)^" "^(string_of_int d)^"])\n"
paulson@16091
   603
|   by_isar_line ((Factor ((a,b,c)))) = 
paulson@16091
   604
    "by (rule cl"^(string_of_int a)^" [factor "^(string_of_int b)^" "^
paulson@16091
   605
		(string_of_int c)^" ])\n"
quigley@16548
   606
(*|   by_isar_line ( (Rewrite ((a,b),(c,d)))) =
paulson@16091
   607
    "by (rule cl"^(string_of_int a)^" [demod "^(string_of_int b)^" "^
quigley@16548
   608
		(string_of_int c)^" "^(string_of_int d)^" ])\n"*)
paulson@16091
   609
|   by_isar_line ( (Obvious ((a,b)))) =
paulson@16091
   610
    "by (rule cl"^(string_of_int a)^" [obvious "^(string_of_int b)^" ])\n"
quigley@15642
   611
quigley@15642
   612
fun isar_line (numb, (step, clstrs, thmstrs))  = (have_isar_line (numb,(step,clstrs, thmstrs )))^( by_isar_line step)
quigley@15642
   613
quigley@15642
   614
quigley@15642
   615
fun isar_lines [] str = str
quigley@15642
   616
|   isar_lines (x::xs) str = isar_lines xs (str^(isar_line x))
quigley@15642
   617
quigley@15642
   618
fun last_isar_line (numb,( step, clstrs,thmstrs)) = "show \"False\"\n"^(by_isar_line step)
quigley@15642
   619
quigley@15642
   620
paulson@17772
   621
fun to_isar_proof (frees, xs) =
paulson@16091
   622
    let val extraaxioms = get_extraaxioms xs
paulson@16091
   623
	val extraax_num = length extraaxioms
paulson@16091
   624
	val origaxioms_and_steps = Library.drop (extraax_num, xs)  
paulson@16091
   625
	
paulson@16091
   626
	val origaxioms = get_origaxioms origaxioms_and_steps
paulson@16091
   627
	val origax_num = length origaxioms
paulson@16091
   628
	val axioms_and_steps = Library.drop (origax_num + extraax_num, xs)  
paulson@16091
   629
	val axioms = get_axioms axioms_and_steps
paulson@16091
   630
	
paulson@16091
   631
	val steps = Library.drop (origax_num, axioms_and_steps)
paulson@16091
   632
	val firststeps = ReconOrderClauses.butlast steps
paulson@17312
   633
	val laststep = List.last steps
paulson@16091
   634
	
paulson@16091
   635
	val isar_proof = 
paulson@17772
   636
		("show \"[your goal]\"\n")^
paulson@16091
   637
		("proof (rule ccontr,skolemize, make_clauses) \n")^
paulson@16091
   638
		("fix "^(frees_to_isar_str frees)^"\n")^
paulson@16091
   639
		(assume_isar_extraaxioms extraaxioms)^
paulson@16091
   640
		(assume_isar_origaxioms origaxioms)^
paulson@16091
   641
		(isar_axiomlines axioms "")^
paulson@16091
   642
		(isar_lines firststeps "")^
paulson@16091
   643
		(last_isar_line laststep)^
paulson@16091
   644
		("qed")
paulson@17718
   645
	val _ = trace ("\nto_isar_proof returns " ^ isar_proof)
paulson@16091
   646
    in
paulson@16091
   647
	isar_proof
paulson@16091
   648
    end;
quigley@15642
   649
quigley@15642
   650
(* get fix vars from axioms - all Frees *)
quigley@15642
   651
(* check each clause for meta-vars and /\ over them at each step*)
quigley@15642
   652
quigley@15642
   653
(*******************************************************)
quigley@15642
   654
(* This assumes the thm list  "numcls" is still there  *)
quigley@15642
   655
(* In reality, should probably label it with an        *)
quigley@15642
   656
(* ID number identifying the subgoal.  This could      *)
quigley@15642
   657
(* be passed over to the watcher, e.g.  numcls25       *)
quigley@15642
   658
(*******************************************************)
quigley@15642
   659
paulson@17772
   660
fun apply_res_thm str  = 
paulson@17315
   661
  let val tokens = #1 (lex str);
paulson@17772
   662
      val _ = trace ("\napply_res_thm. str is: "^str^"\n")	
paulson@17315
   663
      val (frees,recon_steps) = parse_step tokens 
paulson@17315
   664
  in 
paulson@17772
   665
      to_isar_proof (frees, recon_steps)
paulson@17315
   666
  end 
quigley@15642
   667
paulson@15684
   668
end;