TSTP Solution File: BOO075-1 by EQP---0.9e

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : EQP---0.9e
% Problem  : BOO075-1 : TPTP v8.1.0. Released v2.6.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : tptp2X_and_run_eqp %s

% Computer : n027.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  : 600s
% DateTime : Thu Jul 14 23:37:34 EDT 2022

% Result   : Unsatisfiable 0.72s 1.21s
% Output   : Refutation 0.72s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   13
%            Number of leaves      :    2
% Syntax   : Number of clauses     :   27 (  27 unt;   0 nHn;   2 RR)
%            Number of literals    :   27 (   0 equ;   1 neg)
%            Maximal clause size   :    1 (   1 avg)
%            Maximal term depth    :    9 (   2 avg)
%            Number of predicates  :    2 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    3 (   3 usr;   2 con; 0-2 aty)
%            Number of variables   :   58 (  10 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,plain,
    equal(nand(nand(A,nand(nand(B,A),A)),nand(B,nand(C,A))),B),
    file('BOO075-1.p',unknown),
    [] ).

cnf(2,plain,
    ~ equal(nand(nand(a,a),nand(b,a)),a),
    file('BOO075-1.p',unknown),
    [] ).

cnf(4,plain,
    equal(nand(nand(nand(A,nand(B,C)),nand(nand(D,nand(A,nand(B,C))),nand(A,nand(B,C)))),nand(D,A)),D),
    inference(para,[status(thm),theory(equality)],[1,1]),
    [iquote('para(1,1)')] ).

cnf(5,plain,
    equal(nand(nand(nand(A,B),nand(nand(nand(B,nand(nand(C,B),B)),nand(A,B)),nand(A,B))),C),nand(B,nand(nand(C,B),B))),
    inference(para,[status(thm),theory(equality)],[1,1]),
    [iquote('para(1,1)')] ).

cnf(11,plain,
    equal(nand(nand(nand(A,B),nand(nand(C,nand(A,B)),nand(A,B))),nand(C,A)),C),
    inference(para,[status(thm),theory(equality)],[4,1]),
    [iquote('para(4,1)')] ).

cnf(19,plain,
    equal(nand(nand(A,nand(nand(B,A),A)),nand(B,nand(C,nand(nand(A,C),C)))),B),
    inference(para,[status(thm),theory(equality)],[5,1]),
    [iquote('para(5,1)')] ).

cnf(25,plain,
    equal(nand(nand(A,nand(nand(nand(B,nand(nand(B,B),B)),A),A)),B),nand(B,nand(nand(B,B),B))),
    inference(para,[status(thm),theory(equality)],[1,19]),
    [iquote('para(1,19)')] ).

cnf(31,plain,
    equal(nand(nand(nand(A,nand(B,A)),nand(A,nand(A,nand(B,A)))),A),nand(A,nand(nand(A,A),A))),
    inference(para,[status(thm),theory(equality)],[1,25]),
    [iquote('para(1,25)')] ).

cnf(32,plain,
    equal(nand(nand(A,nand(nand(A,nand(nand(A,A),A)),A)),nand(nand(B,nand(nand(nand(A,nand(nand(A,A),A)),B),B)),nand(C,A))),nand(B,nand(nand(nand(A,nand(nand(A,A),A)),B),B))),
    inference(para,[status(thm),theory(equality)],[25,1]),
    [iquote('para(25,1)')] ).

cnf(47,plain,
    equal(nand(A,nand(nand(A,A),A)),nand(A,A)),
    inference(flip,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[19,31]),1]),
    [iquote('para(19,31),flip(1)')] ).

cnf(61,plain,
    equal(nand(nand(A,A),nand(nand(B,nand(nand(nand(A,A),B),B)),nand(C,A))),nand(B,nand(nand(nand(A,A),B),B))),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[32]),47,47,47,47]),
    [iquote('back_demod(32),demod([47,47,47,47])')] ).

cnf(62,plain,
    equal(nand(nand(nand(A,nand(B,A)),nand(A,nand(A,nand(B,A)))),A),nand(A,A)),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[31]),47]),
    [iquote('back_demod(31),demod([47])')] ).

cnf(63,plain,
    equal(nand(nand(A,nand(nand(nand(B,B),A),A)),B),nand(B,B)),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[25]),47,47]),
    [iquote('back_demod(25),demod([47,47])')] ).

cnf(67,plain,
    equal(nand(nand(A,A),nand(A,nand(B,A))),A),
    inference(para,[status(thm),theory(equality)],[47,1]),
    [iquote('para(47,1)')] ).

cnf(68,plain,
    equal(nand(nand(A,A),nand(A,A)),A),
    inference(demod,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[47,1]),47]),
    [iquote('para(47,1),demod([47])')] ).

cnf(70,plain,
    equal(nand(A,nand(nand(A,A),nand(B,nand(A,A)))),nand(A,A)),
    inference(para,[status(thm),theory(equality)],[68,67]),
    [iquote('para(68,67)')] ).

cnf(74,plain,
    equal(nand(nand(A,nand(nand(B,A),A)),nand(B,B)),B),
    inference(demod,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[68,63]),68]),
    [iquote('para(68,63),demod([68])')] ).

cnf(86,plain,
    equal(nand(nand(nand(nand(A,A),nand(B,nand(A,A))),nand(nand(A,A),nand(nand(A,A),nand(B,nand(A,A))))),nand(A,nand(C,nand(nand(A,A),nand(B,nand(A,A)))))),A),
    inference(para,[status(thm),theory(equality)],[70,1]),
    [iquote('para(70,1)')] ).

cnf(95,plain,
    equal(nand(nand(nand(A,nand(B,A)),nand(A,nand(A,nand(B,A)))),nand(nand(A,A),A)),nand(A,A)),
    inference(para,[status(thm),theory(equality)],[67,11]),
    [iquote('para(67,11)')] ).

cnf(100,plain,
    equal(nand(A,nand(nand(B,nand(nand(A,B),B)),A)),nand(B,nand(nand(A,B),B))),
    inference(demod,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[74,11]),67]),
    [iquote('para(74,11),demod([67])')] ).

cnf(105,plain,
    equal(nand(nand(A,A),nand(B,nand(nand(A,B),B))),A),
    inference(para,[status(thm),theory(equality)],[100,67]),
    [iquote('para(100,67)')] ).

cnf(301,plain,
    equal(nand(nand(A,nand(B,A)),nand(A,nand(A,nand(B,A)))),A),
    inference(flip,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[95,1]),62,47,68]),1]),
    [iquote('para(95,1),demod([62,47,68]),flip(1)')] ).

cnf(307,plain,
    equal(nand(nand(A,A),nand(A,nand(B,nand(nand(A,A),nand(C,nand(A,A)))))),A),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[86]),301]),
    [iquote('back_demod(86),demod([301])')] ).

cnf(332,plain,
    equal(nand(nand(A,A),nand(A,B)),A),
    inference(para,[status(thm),theory(equality)],[105,307]),
    [iquote('para(105,307)')] ).

cnf(527,plain,
    equal(nand(A,nand(nand(nand(nand(B,A),nand(B,A)),A),A)),nand(B,A)),
    inference(flip,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[1,61]),332]),1]),
    [iquote('para(1,61),demod([332]),flip(1)')] ).

cnf(528,plain,
    equal(nand(nand(A,A),nand(B,A)),A),
    inference(para,[status(thm),theory(equality)],[527,332]),
    [iquote('para(527,332)')] ).

cnf(529,plain,
    $false,
    inference(conflict,[status(thm)],[528,2]),
    [iquote('conflict(528,2)')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.12  % Problem  : BOO075-1 : TPTP v8.1.0. Released v2.6.0.
% 0.04/0.13  % Command  : tptp2X_and_run_eqp %s
% 0.12/0.34  % Computer : n027.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  : 600
% 0.12/0.34  % DateTime : Wed Jun  1 20:34:19 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 0.72/1.21  ----- EQP 0.9e, May 2009 -----
% 0.72/1.21  The job began on n027.cluster.edu, Wed Jun  1 20:34:19 2022
% 0.72/1.21  The command was "./eqp09e".
% 0.72/1.21  
% 0.72/1.21  set(prolog_style_variables).
% 0.72/1.21  set(lrpo).
% 0.72/1.21  set(basic_paramod).
% 0.72/1.21  set(functional_subsume).
% 0.72/1.21  set(ordered_paramod).
% 0.72/1.21  set(prime_paramod).
% 0.72/1.21  set(para_pairs).
% 0.72/1.21  assign(pick_given_ratio,4).
% 0.72/1.21  clear(print_kept).
% 0.72/1.21  clear(print_new_demod).
% 0.72/1.21  clear(print_back_demod).
% 0.72/1.21  clear(print_given).
% 0.72/1.21  assign(max_mem,64000).
% 0.72/1.21  end_of_commands.
% 0.72/1.21  
% 0.72/1.21  Usable:
% 0.72/1.21  end_of_list.
% 0.72/1.21  
% 0.72/1.21  Sos:
% 0.72/1.21  0 (wt=-1) [] nand(nand(A,nand(nand(B,A),A)),nand(B,nand(C,A))) = B.
% 0.72/1.21  0 (wt=-1) [] -(nand(nand(a,a),nand(b,a)) = a).
% 0.72/1.21  end_of_list.
% 0.72/1.21  
% 0.72/1.21  Demodulators:
% 0.72/1.21  end_of_list.
% 0.72/1.21  
% 0.72/1.21  Passive:
% 0.72/1.21  end_of_list.
% 0.72/1.21  
% 0.72/1.21  Starting to process input.
% 0.72/1.21  
% 0.72/1.21  ** KEPT: 1 (wt=15) [] nand(nand(A,nand(nand(B,A),A)),nand(B,nand(C,A))) = B.
% 0.72/1.21  1 is a new demodulator.
% 0.72/1.21  
% 0.72/1.21  ** KEPT: 2 (wt=9) [] -(nand(nand(a,a),nand(b,a)) = a).
% 0.72/1.21  ---------------- PROOF FOUND ----------------
% 0.72/1.21  % SZS status Unsatisfiable
% 0.72/1.21  
% 0.72/1.21  
% 0.72/1.21  After processing input:
% 0.72/1.21  
% 0.72/1.21  Usable:
% 0.72/1.21  end_of_list.
% 0.72/1.21  
% 0.72/1.21  Sos:
% 0.72/1.21  2 (wt=9) [] -(nand(nand(a,a),nand(b,a)) = a).
% 0.72/1.21  1 (wt=15) [] nand(nand(A,nand(nand(B,A),A)),nand(B,nand(C,A))) = B.
% 0.72/1.21  end_of_list.
% 0.72/1.21  
% 0.72/1.21  Demodulators:
% 0.72/1.21  1 (wt=15) [] nand(nand(A,nand(nand(B,A),A)),nand(B,nand(C,A))) = B.
% 0.72/1.21  end_of_list.
% 0.72/1.21  
% 0.72/1.21  Passive:
% 0.72/1.21  end_of_list.
% 0.72/1.21  
% 0.72/1.21  UNIT CONFLICT from 528 and 2 at   0.11 seconds.
% 0.72/1.21  
% 0.72/1.21  ---------------- PROOF ----------------
% 0.72/1.21  % SZS output start Refutation
% See solution above
% 0.72/1.21  ------------ end of proof -------------
% 0.72/1.21  
% 0.72/1.21  
% 0.72/1.21  ------------- memory usage ------------
% 0.72/1.21  Memory dynamically allocated (tp_alloc): 2441.
% 0.72/1.21    type (bytes each)        gets      frees     in use      avail      bytes
% 0.72/1.21  sym_ent (  96)               54          0         54          0      5.1 K
% 0.72/1.21  term (  16)              170559     144899      25660        195    502.9 K
% 0.72/1.21  gen_ptr (   8)           183131      36391     146740         26   1146.6 K
% 0.72/1.21  context ( 808)            90645      90643          2          3      3.9 K
% 0.72/1.21  trail (  12)              41683      41683          0          6      0.1 K
% 0.72/1.21  bt_node (  68)            45917      45914          3        116      7.9 K
% 0.72/1.21  ac_position (285432)          0          0          0          0      0.0 K
% 0.72/1.21  ac_match_pos (14044)          0          0          0          0      0.0 K
% 0.72/1.21  ac_match_free_vars_pos (4020)
% 0.72/1.21                                0          0          0          0      0.0 K
% 0.72/1.21  discrim (  12)            27047      14414      12633       2467    177.0 K
% 0.72/1.21  flat (  40)              626430     626430          0        131      5.1 K
% 0.72/1.21  discrim_pos (  12)         3863       3863          0          1      0.0 K
% 0.72/1.21  fpa_head (  12)            1585          0       1585          0     18.6 K
% 0.72/1.21  fpa_tree (  28)            4781       4781          0         37      1.0 K
% 0.72/1.21  fpa_pos (  36)             1052       1052          0          1      0.0 K
% 0.72/1.21  literal (  12)             2449       1921        528          1      6.2 K
% 0.72/1.21  clause (  24)              2449       1921        528          1     12.4 K
% 0.72/1.21  list (  12)                 583        527         56          3      0.7 K
% 0.72/1.21  list_pos (  20)            2747       1594       1153          0     22.5 K
% 0.72/1.21  pair_index (   40)              2          0          2          0      0.1 K
% 0.72/1.21  
% 0.72/1.21  -------------- statistics -------------
% 0.72/1.21  Clauses input                  2
% 0.72/1.21    Usable input                   0
% 0.72/1.21    Sos input                      2
% 0.72/1.21    Demodulators input             0
% 0.72/1.21    Passive input                  0
% 0.72/1.21  
% 0.72/1.21  Processed BS (before search)   2
% 0.72/1.21  Forward subsumed BS            0
% 0.72/1.21  Kept BS                        2
% 0.72/1.21  New demodulators BS            1
% 0.72/1.21  Back demodulated BS            0
% 0.72/1.21  
% 0.72/1.21  Clauses or pairs given      1267
% 0.72/1.21  Clauses generated           1846
% 0.72/1.21  Forward subsumed            1320
% 0.72/1.21  Deleted by weight              0
% 0.72/1.21  Deleted by variable count      0
% 0.72/1.21  Kept                         526
% 0.72/1.21  New demodulators             523
% 0.72/1.21  Back demodulated             318
% 0.72/1.21  Ordered paramod prunes         0
% 0.72/1.21  Basic paramod prunes        8969
% 0.72/1.21  Prime paramod prunes         114
% 0.72/1.21  Semantic prunes                0
% 0.72/1.21  
% 0.72/1.21  Rewrite attmepts           63321
% 0.72/1.21  Rewrites                    3748
% 0.72/1.21  
% 0.72/1.21  FPA overloads                  0
% 0.72/1.21  FPA underloads                 0
% 0.72/1.21  
% 0.72/1.21  Usable size                    0
% 0.72/1.21  Sos size                     209
% 0.72/1.21  Demodulators size            208
% 0.72/1.21  Passive size                   0
% 0.72/1.21  Disabled size                318
% 0.72/1.21  
% 0.72/1.21  Proofs found                   1
% 0.72/1.21  
% 0.72/1.21  ----------- times (seconds) ----------- Wed Jun  1 20:34:20 2022
% 0.72/1.21  
% 0.72/1.21  user CPU time             0.11   (0 hr, 0 min, 0 sec)
% 0.72/1.21  system CPU time           0.03   (0 hr, 0 min, 0 sec)
% 0.72/1.21  wall-clock time           1      (0 hr, 0 min, 1 sec)
% 0.72/1.21  input time                0.00
% 0.72/1.21  paramodulation time       0.02
% 0.72/1.21  demodulation time         0.03
% 0.72/1.21  orient time               0.00
% 0.72/1.21  weigh time                0.00
% 0.72/1.21  forward subsume time      0.00
% 0.72/1.21  back demod find time      0.01
% 0.72/1.21  conflict time             0.00
% 0.72/1.21  LRPO time                 0.00
% 0.72/1.21  store clause time         0.02
% 0.72/1.21  disable clause time       0.00
% 0.72/1.21  prime paramod time        0.01
% 0.72/1.21  semantics time            0.00
% 0.72/1.21  
% 0.72/1.21  EQP interrupted
%------------------------------------------------------------------------------