TSTP Solution File: SET047-5 by Otter---3.3

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Otter---3.3
% Problem  : SET047-5 : TPTP v8.1.0. Released v1.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : otter-tptp-script %s

% Computer : n011.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Wed Jul 27 13:12:55 EDT 2022

% Result   : Unsatisfiable 1.97s 2.13s
% Output   : Refutation 1.97s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   11
%            Number of leaves      :    6
% Syntax   : Number of clauses     :   26 (   7 unt;  15 nHn;  25 RR)
%            Number of literals    :   56 (   0 equ;   8 neg)
%            Maximal clause size   :    4 (   2 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    3 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :    3 (   3 usr;   2 con; 0-2 aty)
%            Number of variables   :   10 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,axiom,
    ( ~ set_e_qual(A,B)
    | ~ element(C,A)
    | element(C,B) ),
    file('SET047-5.p',unknown),
    [] ).

cnf(2,axiom,
    ( ~ set_e_qual(A,B)
    | ~ element(C,B)
    | element(C,A) ),
    file('SET047-5.p',unknown),
    [] ).

cnf(3,axiom,
    ( ~ element(f(A,B),B)
    | ~ element(f(A,B),A)
    | set_e_qual(A,B) ),
    file('SET047-5.p',unknown),
    [] ).

cnf(4,axiom,
    ( ~ set_e_qual(b,a)
    | ~ set_e_qual(a,b) ),
    file('SET047-5.p',unknown),
    [] ).

cnf(6,axiom,
    ( element(f(A,B),A)
    | element(f(A,B),B)
    | set_e_qual(A,B) ),
    file('SET047-5.p',unknown),
    [] ).

cnf(7,axiom,
    ( set_e_qual(a,b)
    | set_e_qual(b,a) ),
    file('SET047-5.p',unknown),
    [] ).

cnf(9,plain,
    ( element(f(a,b),a)
    | element(f(a,b),b)
    | element(f(b,a),b)
    | element(f(b,a),a) ),
    inference(hyper,[status(thm)],[6,4,6]),
    [iquote('hyper,6,4,6')] ).

cnf(11,plain,
    ( element(f(a,b),b)
    | element(f(b,a),b)
    | element(f(b,a),a) ),
    inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[9,2,6])])])]),
    [iquote('hyper,9,2,6,factor_simp,factor_simp,factor_simp')] ).

cnf(14,plain,
    ( element(f(a,b),a)
    | element(f(b,a),b)
    | element(f(b,a),a) ),
    inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[9,1,6])])])]),
    [iquote('hyper,9,1,6,factor_simp,factor_simp,factor_simp')] ).

cnf(22,plain,
    ( element(f(a,b),b)
    | element(f(b,a),a)
    | set_e_qual(b,a) ),
    inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[11,2,7])]),
    [iquote('hyper,11,2,7,factor_simp')] ).

cnf(26,plain,
    ( element(f(a,b),b)
    | element(f(b,a),b)
    | set_e_qual(a,b) ),
    inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[11,2,7])]),
    [iquote('hyper,11,2,7,factor_simp')] ).

cnf(30,plain,
    ( element(f(b,a),b)
    | element(f(b,a),a)
    | set_e_qual(a,b) ),
    inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[14,3,11])])]),
    [iquote('hyper,14,3,11,factor_simp,factor_simp')] ).

cnf(41,plain,
    ( element(f(a,b),b)
    | element(f(b,a),a) ),
    inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[22,1,11])])])]),
    [iquote('hyper,22,1,11,factor_simp,factor_simp,factor_simp')] ).

cnf(46,plain,
    ( element(f(a,b),b)
    | element(f(b,a),b) ),
    inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[26,1,41])])]),
    [iquote('hyper,26,1,41,factor_simp,factor_simp')] ).

cnf(49,plain,
    ( element(f(a,b),b)
    | set_e_qual(b,a) ),
    inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[46,3,41])]),
    [iquote('hyper,46,3,41,factor_simp')] ).

cnf(52,plain,
    ( element(f(b,a),b)
    | element(f(b,a),a) ),
    inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[30,4,6])])]),
    [iquote('hyper,30,4,6,factor_simp,factor_simp')] ).

cnf(53,plain,
    ( element(f(a,b),b)
    | element(f(a,b),a) ),
    inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[49,4,6])]),
    [iquote('hyper,49,4,6,factor_simp')] ).

cnf(54,plain,
    ( element(f(b,a),a)
    | set_e_qual(b,a) ),
    inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[52,2,7])]),
    [iquote('hyper,52,2,7,factor_simp')] ).

cnf(58,plain,
    ( element(f(b,a),b)
    | set_e_qual(a,b) ),
    inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[52,2,7])]),
    [iquote('hyper,52,2,7,factor_simp')] ).

cnf(62,plain,
    element(f(b,a),a),
    inference(factor_simp,[status(thm)],[inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[54,1,52])])]),
    [iquote('hyper,54,1,52,factor_simp,factor_simp')] ).

cnf(78,plain,
    element(f(b,a),b),
    inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[58,1,62])]),
    [iquote('hyper,58,1,62,factor_simp')] ).

cnf(79,plain,
    set_e_qual(b,a),
    inference(hyper,[status(thm)],[78,3,62]),
    [iquote('hyper,78,3,62')] ).

cnf(83,plain,
    element(f(a,b),a),
    inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[53,1,79])]),
    [iquote('hyper,53,1,79,factor_simp')] ).

cnf(84,plain,
    element(f(a,b),b),
    inference(factor_simp,[status(thm)],[inference(hyper,[status(thm)],[53,2,79])]),
    [iquote('hyper,53,2,79,factor_simp')] ).

cnf(94,plain,
    set_e_qual(a,b),
    inference(hyper,[status(thm)],[84,3,83]),
    [iquote('hyper,84,3,83')] ).

cnf(97,plain,
    $false,
    inference(hyper,[status(thm)],[94,4,79]),
    [iquote('hyper,94,4,79')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : SET047-5 : TPTP v8.1.0. Released v1.0.0.
% 0.03/0.13  % Command  : otter-tptp-script %s
% 0.12/0.34  % Computer : n011.cluster.edu
% 0.12/0.34  % Model    : x86_64 x86_64
% 0.12/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.34  % Memory   : 8042.1875MB
% 0.12/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.34  % CPULimit : 300
% 0.12/0.34  % WCLimit  : 300
% 0.12/0.34  % DateTime : Wed Jul 27 10:28:10 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 1.97/2.13  ----- Otter 3.3f, August 2004 -----
% 1.97/2.13  The process was started by sandbox on n011.cluster.edu,
% 1.97/2.13  Wed Jul 27 10:28:10 2022
% 1.97/2.13  The command was "./otter".  The process ID is 4613.
% 1.97/2.13  
% 1.97/2.13  set(prolog_style_variables).
% 1.97/2.13  set(auto).
% 1.97/2.13     dependent: set(auto1).
% 1.97/2.13     dependent: set(process_input).
% 1.97/2.13     dependent: clear(print_kept).
% 1.97/2.13     dependent: clear(print_new_demod).
% 1.97/2.13     dependent: clear(print_back_demod).
% 1.97/2.13     dependent: clear(print_back_sub).
% 1.97/2.13     dependent: set(control_memory).
% 1.97/2.13     dependent: assign(max_mem, 12000).
% 1.97/2.13     dependent: assign(pick_given_ratio, 4).
% 1.97/2.13     dependent: assign(stats_level, 1).
% 1.97/2.13     dependent: assign(max_seconds, 10800).
% 1.97/2.13  clear(print_given).
% 1.97/2.13  
% 1.97/2.13  list(usable).
% 1.97/2.13  0 [] -set_e_qual(X,Y)| -element(Z,X)|element(Z,Y).
% 1.97/2.13  0 [] -set_e_qual(X,Y)| -element(Z,Y)|element(Z,X).
% 1.97/2.13  0 [] element(f(X,Y),X)|element(f(X,Y),Y)|set_e_qual(X,Y).
% 1.97/2.13  0 [] -element(f(X,Y),Y)| -element(f(X,Y),X)|set_e_qual(X,Y).
% 1.97/2.13  0 [] set_e_qual(a,b)|set_e_qual(b,a).
% 1.97/2.13  0 [] -set_e_qual(b,a)| -set_e_qual(a,b).
% 1.97/2.13  end_of_list.
% 1.97/2.13  
% 1.97/2.13  SCAN INPUT: prop=0, horn=0, equality=0, symmetry=0, max_lits=3.
% 1.97/2.13  
% 1.97/2.13  This is a non-Horn set without equality.  The strategy will
% 1.97/2.13  be ordered hyper_res, unit deletion, and factoring, with
% 1.97/2.13  satellites in sos and with nuclei in usable.
% 1.97/2.13  
% 1.97/2.13     dependent: set(hyper_res).
% 1.97/2.13     dependent: set(factor).
% 1.97/2.13     dependent: set(unit_deletion).
% 1.97/2.13  
% 1.97/2.13  ------------> process usable:
% 1.97/2.13  ** KEPT (pick-wt=9): 1 [] -set_e_qual(A,B)| -element(C,A)|element(C,B).
% 1.97/2.13  ** KEPT (pick-wt=9): 2 [] -set_e_qual(A,B)| -element(C,B)|element(C,A).
% 1.97/2.13  ** KEPT (pick-wt=13): 3 [] -element(f(A,B),B)| -element(f(A,B),A)|set_e_qual(A,B).
% 1.97/2.13  ** KEPT (pick-wt=6): 4 [] -set_e_qual(b,a)| -set_e_qual(a,b).
% 1.97/2.13  
% 1.97/2.13  ------------> process sos:
% 1.97/2.13  ** KEPT (pick-wt=13): 6 [] element(f(A,B),A)|element(f(A,B),B)|set_e_qual(A,B).
% 1.97/2.13  ** KEPT (pick-wt=6): 7 [] set_e_qual(a,b)|set_e_qual(b,a).
% 1.97/2.13  
% 1.97/2.13  ======= end of input processing =======
% 1.97/2.13  
% 1.97/2.13  =========== start of search ===========
% 1.97/2.13  
% 1.97/2.13  -------- PROOF -------- 
% 1.97/2.13  
% 1.97/2.13  -----> EMPTY CLAUSE at   0.01 sec ----> 97 [hyper,94,4,79] $F.
% 1.97/2.13  
% 1.97/2.13  Length of proof is 19.  Level of proof is 10.
% 1.97/2.13  
% 1.97/2.13  ---------------- PROOF ----------------
% 1.97/2.13  % SZS status Unsatisfiable
% 1.97/2.13  % SZS output start Refutation
% See solution above
% 1.97/2.13  ------------ end of proof -------------
% 1.97/2.13  
% 1.97/2.13  
% 1.97/2.13  Search stopped by max_proofs option.
% 1.97/2.13  
% 1.97/2.13  
% 1.97/2.13  Search stopped by max_proofs option.
% 1.97/2.13  
% 1.97/2.13  ============ end of search ============
% 1.97/2.13  
% 1.97/2.13  -------------- statistics -------------
% 1.97/2.13  clauses given                 24
% 1.97/2.13  clauses generated            535
% 1.97/2.13  clauses kept                  96
% 1.97/2.13  clauses forward subsumed     444
% 1.97/2.13  clauses back subsumed         68
% 1.97/2.13  Kbytes malloced              976
% 1.97/2.13  
% 1.97/2.13  ----------- times (seconds) -----------
% 1.97/2.13  user CPU time          0.01          (0 hr, 0 min, 0 sec)
% 1.97/2.13  system CPU time        0.00          (0 hr, 0 min, 0 sec)
% 1.97/2.13  wall-clock time        1             (0 hr, 0 min, 1 sec)
% 1.97/2.13  
% 1.97/2.13  That finishes the proof of the theorem.
% 1.97/2.13  
% 1.97/2.13  Process 4613 finished Wed Jul 27 10:28:12 2022
% 1.97/2.13  Otter interrupted
% 1.97/2.13  PROOF FOUND
%------------------------------------------------------------------------------