TSTP Solution File: LAT012-1 by Otter---3.3

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Otter---3.3
% Problem  : LAT012-1 : TPTP v8.1.0. Released v2.2.0.
% 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 13:01:47 EDT 2022

% Result   : Unsatisfiable 2.04s 2.24s
% Output   : Refutation 2.04s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    8
%            Number of leaves      :    5
% Syntax   : Number of clauses     :   18 (  18 unt;   0 nHn;   2 RR)
%            Number of literals    :   18 (  17 equ;   1 neg)
%            Maximal clause size   :    1 (   1 avg)
%            Maximal term depth    :    5 (   2 avg)
%            Number of predicates  :    2 (   0 usr;   1 prp; 0-2 aty)
%            Number of functors    :    4 (   4 usr;   2 con; 0-2 aty)
%            Number of variables   :   36 (  14 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,axiom,
    meet(b,a) != meet(a,b),
    file('LAT012-1.p',unknown),
    [] ).

cnf(3,axiom,
    join(A,meet(B,meet(A,C))) = A,
    file('LAT012-1.p',unknown),
    [] ).

cnf(5,axiom,
    meet(A,join(B,join(A,C))) = A,
    file('LAT012-1.p',unknown),
    [] ).

cnf(7,axiom,
    join(join(meet(A,B),meet(B,C)),B) = B,
    file('LAT012-1.p',unknown),
    [] ).

cnf(9,axiom,
    meet(meet(join(A,B),join(B,C)),B) = B,
    file('LAT012-1.p',unknown),
    [] ).

cnf(11,plain,
    meet(A,join(B,A)) = A,
    inference(para_into,[status(thm),theory(equality)],[5,3]),
    [iquote('para_into,5.1.1.2.2,3.1.1')] ).

cnf(13,plain,
    join(A,meet(B,A)) = A,
    inference(para_from,[status(thm),theory(equality)],[5,3]),
    [iquote('para_from,5.1.1,3.1.1.2.2')] ).

cnf(18,plain,
    join(join(A,B),B) = join(A,B),
    inference(para_into,[status(thm),theory(equality)],[13,11]),
    [iquote('para_into,13.1.1.2,11.1.1')] ).

cnf(27,plain,
    join(meet(A,B),B) = B,
    inference(demod,[status(thm),theory(equality)],[inference(para_into,[status(thm),theory(equality)],[7,11]),18]),
    [iquote('para_into,7.1.1.1.2,11.1.1,demod,18')] ).

cnf(31,plain,
    meet(A,A) = A,
    inference(para_from,[status(thm),theory(equality)],[7,11]),
    [iquote('para_from,7.1.1,11.1.1.2')] ).

cnf(40,plain,
    join(A,meet(A,B)) = A,
    inference(para_from,[status(thm),theory(equality)],[31,3]),
    [iquote('para_from,31.1.1,3.1.1.2')] ).

cnf(41,plain,
    join(A,join(B,A)) = join(B,A),
    inference(para_into,[status(thm),theory(equality)],[27,11]),
    [iquote('para_into,27.1.1.1,11.1.1')] ).

cnf(55,plain,
    meet(meet(A,join(meet(B,A),C)),meet(B,A)) = meet(B,A),
    inference(para_into,[status(thm),theory(equality)],[9,13]),
    [iquote('para_into,9.1.1.1.1,13.1.1')] ).

cnf(71,plain,
    meet(meet(A,B),A) = meet(A,B),
    inference(para_from,[status(thm),theory(equality)],[40,11]),
    [iquote('para_from,39.1.1,11.1.1.2')] ).

cnf(95,plain,
    join(meet(A,B),A) = A,
    inference(demod,[status(thm),theory(equality)],[inference(para_into,[status(thm),theory(equality)],[41,40]),40]),
    [iquote('para_into,41.1.1.2,39.1.1,demod,40')] ).

cnf(928,plain,
    meet(meet(A,B),meet(B,A)) = meet(B,A),
    inference(para_into,[status(thm),theory(equality)],[55,95]),
    [iquote('para_into,55.1.1.1.2,95.1.1')] ).

cnf(1145,plain,
    meet(A,B) = meet(B,A),
    inference(demod,[status(thm),theory(equality)],[inference(para_from,[status(thm),theory(equality)],[928,71]),928,928]),
    [iquote('para_from,927.1.1,71.1.1.1,demod,928,928')] ).

cnf(1146,plain,
    $false,
    inference(binary,[status(thm)],[1145,1]),
    [iquote('binary,1145.1,1.1')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.12  % Problem  : LAT012-1 : TPTP v8.1.0. Released v2.2.0.
% 0.11/0.12  % Command  : otter-tptp-script %s
% 0.12/0.33  % Computer : n011.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 300
% 0.12/0.33  % DateTime : Wed Jul 27 08:17:40 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 2.04/2.24  ----- Otter 3.3f, August 2004 -----
% 2.04/2.24  The process was started by sandbox on n011.cluster.edu,
% 2.04/2.24  Wed Jul 27 08:17:40 2022
% 2.04/2.24  The command was "./otter".  The process ID is 15583.
% 2.04/2.24  
% 2.04/2.24  set(prolog_style_variables).
% 2.04/2.24  set(auto).
% 2.04/2.24     dependent: set(auto1).
% 2.04/2.24     dependent: set(process_input).
% 2.04/2.24     dependent: clear(print_kept).
% 2.04/2.24     dependent: clear(print_new_demod).
% 2.04/2.24     dependent: clear(print_back_demod).
% 2.04/2.24     dependent: clear(print_back_sub).
% 2.04/2.24     dependent: set(control_memory).
% 2.04/2.24     dependent: assign(max_mem, 12000).
% 2.04/2.24     dependent: assign(pick_given_ratio, 4).
% 2.04/2.24     dependent: assign(stats_level, 1).
% 2.04/2.24     dependent: assign(max_seconds, 10800).
% 2.04/2.24  clear(print_given).
% 2.04/2.24  
% 2.04/2.24  list(usable).
% 2.04/2.24  0 [] A=A.
% 2.04/2.24  0 [] join(X,meet(Y,meet(X,Z)))=X.
% 2.04/2.24  0 [] meet(X,join(Y,join(X,Z)))=X.
% 2.04/2.24  0 [] join(join(meet(X,Y),meet(Y,Z)),Y)=Y.
% 2.04/2.24  0 [] meet(meet(join(X,Y),join(Y,Z)),Y)=Y.
% 2.04/2.24  0 [] meet(b,a)!=meet(a,b).
% 2.04/2.24  end_of_list.
% 2.04/2.24  
% 2.04/2.24  SCAN INPUT: prop=0, horn=1, equality=1, symmetry=0, max_lits=1.
% 2.04/2.24  
% 2.04/2.24  All clauses are units, and equality is present; the
% 2.04/2.24  strategy will be Knuth-Bendix with positive clauses in sos.
% 2.04/2.24  
% 2.04/2.24     dependent: set(knuth_bendix).
% 2.04/2.24     dependent: set(anl_eq).
% 2.04/2.24     dependent: set(para_from).
% 2.04/2.24     dependent: set(para_into).
% 2.04/2.24     dependent: clear(para_from_right).
% 2.04/2.24     dependent: clear(para_into_right).
% 2.04/2.24     dependent: set(para_from_vars).
% 2.04/2.24     dependent: set(eq_units_both_ways).
% 2.04/2.24     dependent: set(dynamic_demod_all).
% 2.04/2.24     dependent: set(dynamic_demod).
% 2.04/2.24     dependent: set(order_eq).
% 2.04/2.24     dependent: set(back_demod).
% 2.04/2.24     dependent: set(lrpo).
% 2.04/2.24  
% 2.04/2.24  ------------> process usable:
% 2.04/2.24  ** KEPT (pick-wt=7): 1 [] meet(b,a)!=meet(a,b).
% 2.04/2.24  
% 2.04/2.24  ------------> process sos:
% 2.04/2.24  ** KEPT (pick-wt=3): 2 [] A=A.
% 2.04/2.24  ** KEPT (pick-wt=9): 3 [] join(A,meet(B,meet(A,C)))=A.
% 2.04/2.24  ---> New Demodulator: 4 [new_demod,3] join(A,meet(B,meet(A,C)))=A.
% 2.04/2.24  ** KEPT (pick-wt=9): 5 [] meet(A,join(B,join(A,C)))=A.
% 2.04/2.24  ---> New Demodulator: 6 [new_demod,5] meet(A,join(B,join(A,C)))=A.
% 2.04/2.24  ** KEPT (pick-wt=11): 7 [] join(join(meet(A,B),meet(B,C)),B)=B.
% 2.04/2.24  ---> New Demodulator: 8 [new_demod,7] join(join(meet(A,B),meet(B,C)),B)=B.
% 2.04/2.24  ** KEPT (pick-wt=11): 9 [] meet(meet(join(A,B),join(B,C)),B)=B.
% 2.04/2.24  ---> New Demodulator: 10 [new_demod,9] meet(meet(join(A,B),join(B,C)),B)=B.
% 2.04/2.24    Following clause subsumed by 2 during input processing: 0 [copy,2,flip.1] A=A.
% 2.04/2.24  >>>> Starting back demodulation with 4.
% 2.04/2.24  >>>> Starting back demodulation with 6.
% 2.04/2.24  >>>> Starting back demodulation with 8.
% 2.04/2.24  >>>> Starting back demodulation with 10.
% 2.04/2.24  
% 2.04/2.24  ======= end of input processing =======
% 2.04/2.24  
% 2.04/2.24  =========== start of search ===========
% 2.04/2.24  
% 2.04/2.24  
% 2.04/2.24  Resetting weight limit to 11.
% 2.04/2.24  
% 2.04/2.24  
% 2.04/2.24  Resetting weight limit to 11.
% 2.04/2.24  
% 2.04/2.24  sos_size=498
% 2.04/2.24  
% 2.04/2.24  -------- PROOF -------- 
% 2.04/2.24  
% 2.04/2.24  ----> UNIT CONFLICT at   0.12 sec ----> 1146 [binary,1145.1,1.1] $F.
% 2.04/2.24  
% 2.04/2.24  Length of proof is 12.  Level of proof is 7.
% 2.04/2.24  
% 2.04/2.24  ---------------- PROOF ----------------
% 2.04/2.24  % SZS status Unsatisfiable
% 2.04/2.24  % SZS output start Refutation
% See solution above
% 2.04/2.24  ------------ end of proof -------------
% 2.04/2.24  
% 2.04/2.24  
% 2.04/2.24  Search stopped by max_proofs option.
% 2.04/2.24  
% 2.04/2.24  
% 2.04/2.24  Search stopped by max_proofs option.
% 2.04/2.24  
% 2.04/2.24  ============ end of search ============
% 2.04/2.24  
% 2.04/2.24  -------------- statistics -------------
% 2.04/2.24  clauses given                110
% 2.04/2.24  clauses generated          13082
% 2.04/2.24  clauses kept                 575
% 2.04/2.24  clauses forward subsumed    9543
% 2.04/2.24  clauses back subsumed          0
% 2.04/2.24  Kbytes malloced             4882
% 2.04/2.24  
% 2.04/2.24  ----------- times (seconds) -----------
% 2.04/2.24  user CPU time          0.12          (0 hr, 0 min, 0 sec)
% 2.04/2.24  system CPU time        0.00          (0 hr, 0 min, 0 sec)
% 2.04/2.24  wall-clock time        2             (0 hr, 0 min, 2 sec)
% 2.04/2.24  
% 2.04/2.24  That finishes the proof of the theorem.
% 2.04/2.24  
% 2.04/2.24  Process 15583 finished Wed Jul 27 08:17:42 2022
% 2.04/2.24  Otter interrupted
% 2.04/2.24  PROOF FOUND
%------------------------------------------------------------------------------