author | paulson |
Tue, 19 Apr 2005 18:08:44 +0200 | |
changeset 15774 | 9df37a0e935d |
parent 15736 | 1bb0399a9517 |
child 15779 | aed221aff642 |
permissions | -rw-r--r-- |
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(* Author: Jia Meng, Cambridge University Computer Laboratory |
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ID: $Id$ |
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Copyright 2004 University of Cambridge |
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ATPs with TPTP format input. |
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*) |
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(*Jia: changed: isar_atp now processes entire proof context. fetch thms from delta simpset/claset*) |
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(*Claire: changed: added actual watcher calls *) |
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signature RES_ATP = |
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sig |
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val trace_res : bool ref |
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val axiom_file : Path.T |
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val hyps_file : Path.T |
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val isar_atp : ProofContext.context * Thm.thm -> unit |
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val prob_file : Path.T; |
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(*val atp_ax_tac : Thm.thm list -> int -> Tactical.tactic*) |
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(*val atp_tac : int -> Tactical.tactic*) |
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val debug: bool ref |
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end; |
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||
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structure ResAtp : RES_ATP = |
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struct |
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(* used for debug *) |
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val debug = ref false; |
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fun debug_tac tac = (warning "testing";tac); |
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(* default value is false *) |
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val trace_res = ref false; |
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val skolem_tac = skolemize_tac; |
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val num_of_clauses = ref 0; |
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val clause_arr = Array.array(3500, ("empty", 0)); |
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||
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val atomize_tac = |
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SUBGOAL |
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(fn (prop,_) => |
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let val ts = Logic.strip_assums_hyp prop |
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in EVERY1 |
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[METAHYPS |
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(fn hyps => (cut_facts_tac (map (ObjectLogic.atomize_thm o forall_intr_vars) hyps) 1)), |
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REPEAT_DETERM_N (length ts) o (etac thin_rl)] |
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end); |
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(* temporarily use these files, which will be loaded by Vampire *) |
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val file_id_num =ref 0; |
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fun new_prob_file () = (file_id_num := (!file_id_num) + 1;"prob"^(string_of_int (!file_id_num))); |
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val axiom_file = File.tmp_path (Path.basic "axioms"); |
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val clasimp_file = File.tmp_path (Path.basic "clasimp"); |
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val hyps_file = File.tmp_path (Path.basic "hyps"); |
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val prob_file = File.tmp_path (Path.basic "prob"); |
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val dummy_tac = PRIMITIVE(fn thm => thm ); |
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(**** for Isabelle/ML interface ****) |
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fun is_proof_char ch = ((33 <= (ord ch)) andalso ((ord ch ) <= 126) andalso (not ((ord ch ) = 63))) orelse (ch = " ") |
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fun proofstring x = let val exp = explode x |
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in |
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List.filter (is_proof_char ) exp |
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end |
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(* |
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fun call_atp_tac thms n = (tptp_inputs thms ; dummy_tac); |
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*) |
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(**** For running in Isar ****) |
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(* same function as that in res_axioms.ML *) |
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fun repeat_RS thm1 thm2 = |
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let val thm1' = thm1 RS thm2 handle THM _ => thm1 |
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in |
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if eq_thm(thm1,thm1') then thm1' else (repeat_RS thm1' thm2) |
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end; |
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(* a special version of repeat_RS *) |
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fun repeat_someI_ex thm = repeat_RS thm someI_ex; |
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(*********************************************************************) |
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(* convert clauses from "assume" to conjecture. write to file "hyps" *) |
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(* hypotheses of the goal currently being proved *) |
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(*********************************************************************) |
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fun isar_atp_h thms = |
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let val prems = map (skolemize o make_nnf o ObjectLogic.atomize_thm) thms |
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val prems' = map repeat_someI_ex prems |
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val prems'' = make_clauses prems' |
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val prems''' = ResAxioms.rm_Eps [] prems'' |
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val clss = map ResClause.make_conjecture_clause prems''' |
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val (tptp_clss,tfree_litss) = ListPair.unzip (map ResClause.clause2tptp clss) |
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val tfree_lits = ResLib.flat_noDup tfree_litss |
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val tfree_clss = map ResClause.tfree_clause tfree_lits |
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val hypsfile = File.sysify_path hyps_file |
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val out = TextIO.openOut(hypsfile) |
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in |
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((ResLib.writeln_strs out (tfree_clss @ tptp_clss); TextIO.closeOut out; if !trace_res then (warning hypsfile) else ());tfree_lits) |
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end; |
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(*********************************************************************) |
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(* write out a subgoal as tptp clauses to the file "probN" *) |
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(* where N is the number of this subgoal *) |
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(*********************************************************************) |
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fun tptp_inputs_tfrees thms n tfrees = |
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let val _ = (warning ("in tptp_inputs_tfrees 0")) |
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val clss = map (ResClause.make_conjecture_clause_thm) thms |
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val _ = (warning ("in tptp_inputs_tfrees 1")) |
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val (tptp_clss,tfree_litss) = ListPair.unzip (map ResClause.clause2tptp clss) |
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val _ = (warning ("in tptp_inputs_tfrees 2")) |
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val tfree_clss = map ResClause.tfree_clause ((ResLib.flat_noDup tfree_litss) \\ tfrees) |
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val _ = (warning ("in tptp_inputs_tfrees 3")) |
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val probfile = (File.sysify_path prob_file) ^ "_" ^ (string_of_int n) |
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val out = TextIO.openOut(probfile) |
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in |
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(ResLib.writeln_strs out (tfree_clss @ tptp_clss); TextIO.closeOut out; (if !trace_res then (warning probfile) else ())) |
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end; |
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(*********************************************************************) |
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(* call SPASS with settings and problem file for the current subgoal *) |
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(* should be modified to allow other provers to be called *) |
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(*********************************************************************) |
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fun call_resolve_tac sign thms sg_term (childin, childout,pid) n = let |
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val thmstring = Meson.concat_with_and (map string_of_thm thms) |
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val thm_no = length thms |
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val _ = warning ("number of thms is : "^(string_of_int thm_no)) |
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val _ = warning ("thmstring in call_res is: "^thmstring) |
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val goalstr = Sign.string_of_term sign sg_term |
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val goalproofstring = proofstring goalstr |
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val no_returns =List.filter not_newline ( goalproofstring) |
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val goalstring = implode no_returns |
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val _ = warning ("goalstring in call_res is: "^goalstring) |
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(*val prob_file =File.tmp_path (Path.basic newprobfile); *) |
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(*val _ =( warning ("calling make_clauses ")) |
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val clauses = make_clauses thms |
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val _ =( warning ("called make_clauses "))*) |
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(*val _ = tptp_inputs clauses prob_file*) |
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val thmstring = Meson.concat_with_and (map string_of_thm thms) |
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val goalstr = Sign.string_of_term sign sg_term |
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val goalproofstring = proofstring goalstr |
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val no_returns =List.filter not_newline ( goalproofstring) |
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val goalstring = implode no_returns |
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val thmproofstring = proofstring ( thmstring) |
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val no_returns =List.filter not_newline ( thmproofstring) |
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val thmstr = implode no_returns |
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val probfile = (File.sysify_path prob_file) ^ "_" ^ (string_of_int n) |
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val outfile = TextIO.openOut(File.sysify_path(File.tmp_path (Path.basic "hellofile"))) |
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val _ = TextIO.output(outfile, "prob file path is "^probfile^" thmstring is "^thmstr^" goalstring is "^goalstring); |
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val _ = TextIO.flushOut outfile; |
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val _ = TextIO.closeOut outfile |
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in |
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(* without paramodulation *) |
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(warning ("goalstring in call_res_tac is: "^goalstring)); |
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(warning ("prob file in cal_res_tac is: "^probfile)); |
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Watcher.callResProvers(childout, |
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[("spass",thmstr,goalstring,"/homes/clq20/bin/SPASS", |
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"-FullRed=0%-Auto=0%-ISRe%-ISFc%-RTaut%-RFSub%-RBSub%-DocProof", |
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probfile)]); |
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(* with paramodulation *) |
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(*Watcher.callResProvers(childout, |
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[("spass",thmstr,goalstring,"/homes/clq20/bin/SPASS", |
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"-FullRed=0%-ISPm=1%-Split=0%-PObv=0%-DocProof", |
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prob_path)]); *) |
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(* Watcher.callResProvers(childout, |
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[("spass",thmstr,goalstring,"/homes/clq20/bin/SPASS", |
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"-DocProof", prob_path)]);*) |
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dummy_tac |
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end |
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(************************************************) |
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(* pass in subgoal as a term and watcher info *) |
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(* process subgoal into skolemized, negated form*) |
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(* then call call_resolve_tac to send to ATP *) |
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(************************************************) |
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(* |
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fun resolve_tac sg_term (childin, childout,pid) = |
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let val _ = warning ("in resolve_tac ") |
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in |
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SELECT_GOAL |
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(EVERY1 [rtac ccontr,atomize_tac,skolemize_tac, METAHYPS(fn negs => (warning ("calling call_resolve_tac next ");dummy_tac (*call_resolve_tac negs sg_term (childin, childout,pid)*)))]) |
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end; |
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*) |
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(* Need to replace call_atp_tac_tfrees with call res_provers as it's the dummy one *) |
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(**********************************************************) |
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(* write out the current subgoal as a tptp file, probN, *) |
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(* then call dummy_tac - should be call_res_tac *) |
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(**********************************************************) |
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(* should call call_res_tac here, not resolve_tac *) |
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(* if we take tptpinputs out it gets into call_res_tac then falls over as usual after printing out goalstring. but if we leave it in it falls over here *) |
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(* dummy tac vs. Doesn't call resolve_tac *) |
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fun call_atp_tac_tfrees sign thms n tfrees sg_term (childin, childout,pid) = |
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( warning("ths for tptp: " ^ |
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Meson.concat_with_and (map string_of_thm thms)); |
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warning("in call_atp_tac_tfrees"); |
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tptp_inputs_tfrees (make_clauses thms) n tfrees; |
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call_resolve_tac sign thms sg_term (childin, childout, pid) n; |
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dummy_tac); |
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fun atp_tac_tfrees tfrees sg_term (childin, childout,pid) n st = |
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let val sign = sign_of_thm st |
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val _ = warning ("in atp_tac_tfrees ") |
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val _ = warning ("sg_term :" ^ (Sign.string_of_term sign sg_term)) |
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in |
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SELECT_GOAL |
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(EVERY1 [rtac ccontr,atomize_tac, skolemize_tac, |
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METAHYPS(fn negs => (warning("calling call_atp_tac_tfrees with negs" |
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^ Meson.concat_with_and (map string_of_thm negs)); |
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call_atp_tac_tfrees sign negs n tfrees sg_term (childin, childout,pid) ))]) n st |
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end; |
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fun isar_atp_g tfrees sg_term (childin, childout, pid) n = |
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((warning("in isar_atp_g"));atp_tac_tfrees tfrees sg_term (childin, childout, pid) n); |
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(**********************************************) |
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(* recursively call atp_tac_g on all subgoals *) |
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(* sg_term is the nth subgoal as a term - used*) |
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(* in proof reconstruction *) |
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(**********************************************) |
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fun isar_atp_goal' thm k n tfree_lits (childin, childout, pid) = |
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if (k > n) |
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then () |
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else |
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(let val prems = prems_of thm |
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val sg_term = get_nth n prems |
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val thmstring = string_of_thm thm |
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in |
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(warning("in isar_atp_goal'")); |
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(warning("thmstring in isar_atp_goal: "^thmstring)); |
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isar_atp_g tfree_lits sg_term (childin, childout, pid) k thm; |
270 |
isar_atp_goal' thm (k+1) n tfree_lits (childin, childout, pid) |
|
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end); |
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272 |
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273 |
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fun isar_atp_goal thm n_subgoals tfree_lits (childin, childout, pid) = (if (!debug) then warning (string_of_thm thm) else (isar_atp_goal' thm 1 n_subgoals tfree_lits (childin, childout, pid) )); |
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||
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(**************************************************) |
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(* convert clauses from "assume" to conjecture. *) |
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(* i.e. apply make_clauses and then get tptp for *) |
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(* any hypotheses in the goal produced by assume *) |
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(* statements; *) |
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(* write to file "hyps" *) |
282 |
(**************************************************) |
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283 |
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fun isar_atp_aux thms thm n_subgoals (childin, childout, pid) = |
|
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let val tfree_lits = isar_atp_h thms |
287 |
in |
|
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(warning("in isar_atp_aux"));isar_atp_goal thm n_subgoals tfree_lits (childin, childout, pid) |
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end; |
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|
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(******************************************************************) |
|
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(* called in Isar automatically *) |
|
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(* writes out the current clasimpset to a tptp file *) |
|
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(* passes all subgoals on to isar_atp_aux for further processing *) |
|
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(* turns off xsymbol at start of function, restoring it at end *) |
|
296 |
(******************************************************************) |
|
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|
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fun isar_atp' (thms, thm) = |
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let val _= (print_mode := (Library.gen_rems (op =) (! print_mode, ["xsymbols", "symbols"]))) |
300 |
val _= (warning ("in isar_atp'")) |
|
301 |
val prems = prems_of thm |
|
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val sign = sign_of_thm thm |
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val thms_string = Meson.concat_with_and (map string_of_thm thms) |
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val thmstring = string_of_thm thm |
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val prems_string = Meson.concat_with_and (map (Sign.string_of_term sign) prems) |
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(* set up variables for writing out the clasimps to a tptp file *) |
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val _ = write_out_clasimp (File.sysify_path axiom_file) |
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(* cq: add write out clasimps to file *) |
309 |
(* cq:create watcher and pass to isar_atp_aux *) |
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val (childin,childout,pid) = Watcher.createWatcher() |
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val pidstring = string_of_int(Word.toInt (Word.fromLargeWord ( Posix.Process.pidToWord pid ))) |
15608 | 312 |
in |
15644 | 313 |
case prems of [] => () |
314 |
| _ => ((warning ("initial thms: "^thms_string)); |
|
315 |
(warning ("initial thm: "^thmstring)); |
|
316 |
(warning ("subgoals: "^prems_string)); |
|
317 |
(warning ("pid: "^ pidstring))); |
|
318 |
isar_atp_aux thms thm (length prems) (childin, childout, pid) ; |
|
319 |
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320 |
print_mode := (["xsymbols", "symbols"] @ ! print_mode) |
|
15608 | 321 |
end; |
322 |
||
15452 | 323 |
|
15608 | 324 |
|
325 |
||
326 |
local |
|
327 |
||
328 |
fun get_thms_cs claset = |
|
329 |
let val clsset = rep_cs claset |
|
330 |
val safeEs = #safeEs clsset |
|
331 |
val safeIs = #safeIs clsset |
|
332 |
val hazEs = #hazEs clsset |
|
333 |
val hazIs = #hazIs clsset |
|
334 |
in |
|
335 |
safeEs @ safeIs @ hazEs @ hazIs |
|
336 |
end; |
|
337 |
||
338 |
||
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|
15608 | 340 |
fun append_name name [] _ = [] |
341 |
| append_name name (thm::thms) k = (Thm.name_thm ((name ^ "_" ^ (string_of_int k)),thm)) :: (append_name name thms (k+1)); |
|
342 |
||
343 |
fun append_names (name::names) (thms::thmss) = |
|
344 |
let val thms' = append_name name thms 0 |
|
345 |
in |
|
346 |
thms'::(append_names names thmss) |
|
347 |
end; |
|
348 |
||
15452 | 349 |
|
15608 | 350 |
fun get_thms_ss [] = [] |
351 |
| get_thms_ss thms = |
|
352 |
let val names = map Thm.name_of_thm thms |
|
353 |
val thms' = map (mksimps mksimps_pairs) thms |
|
354 |
val thms'' = append_names names thms' |
|
355 |
in |
|
356 |
ResLib.flat_noDup thms'' |
|
357 |
end; |
|
358 |
||
15452 | 359 |
|
15608 | 360 |
|
361 |
||
362 |
in |
|
363 |
||
15452 | 364 |
|
15608 | 365 |
(* convert locally declared rules to axiom clauses *) |
366 |
(* write axiom clauses to ax_file *) |
|
15644 | 367 |
(* what about clasimpset - it should already be in the ax file - perhaps append to ax file rather than just *) |
368 |
(* write out ? Or keep as a separate file and then cat them all together in the watcher, like we do with the *) |
|
369 |
(*claset file and prob file*) |
|
15608 | 370 |
fun isar_local_thms (delta_cs, delta_ss_thms) = |
371 |
let val thms_cs = get_thms_cs delta_cs |
|
372 |
val thms_ss = get_thms_ss delta_ss_thms |
|
373 |
val thms_clauses = ResLib.flat_noDup (map ResAxioms.clausify_axiom (thms_cs @ thms_ss)) |
|
374 |
val clauses_strs = ResLib.flat_noDup (map ResClause.tptp_clause thms_clauses) (*string list*) |
|
375 |
val ax_file = File.sysify_path axiom_file |
|
376 |
val out = TextIO.openOut ax_file |
|
377 |
in |
|
15644 | 378 |
(ResLib.writeln_strs out clauses_strs; (warning ("axiom file is: "^ax_file));TextIO.closeOut out) |
15608 | 379 |
end; |
15347 | 380 |
|
15608 | 381 |
|
382 |
||
383 |
||
15347 | 384 |
|
15608 | 385 |
(* called in Isar automatically *) |
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386 |
|
15608 | 387 |
fun isar_atp (ctxt,thm) = |
388 |
let val prems = ProofContext.prems_of ctxt |
|
15644 | 389 |
val d_cs = Classical.get_delta_claset ctxt |
390 |
val d_ss_thms = Simplifier.get_delta_simpset ctxt |
|
391 |
val thmstring = string_of_thm thm |
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392 |
val sg_prems = prems_of thm |
15697 | 393 |
val sign = sign_of_thm thm |
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394 |
val prem_no = length sg_prems |
15736 | 395 |
val prems_string = Meson.concat_with_and (map (Sign.string_of_term sign) sg_prems) |
15608 | 396 |
in |
15644 | 397 |
(warning ("initial thm in isar_atp: "^thmstring)); |
398 |
(warning ("subgoals in isar_atp: "^prems_string)); |
|
399 |
(warning ("number of subgoals in isar_atp: "^(string_of_int prem_no))); |
|
400 |
(isar_local_thms (d_cs,d_ss_thms); (warning("about to call isar_atp'")); |
|
401 |
isar_atp' (prems, thm)) |
|
15608 | 402 |
end; |
15347 | 403 |
|
15608 | 404 |
end |
405 |
||
406 |
||
407 |
||
15452 | 408 |
|
15347 | 409 |
end; |
410 |
||
411 |
Proof.atp_hook := ResAtp.isar_atp; |