TSTP Solution File: GRP536-1 by EQP---0.9e

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : EQP---0.9e
% Problem  : GRP536-1 : TPTP v8.1.0. Bugfixed v2.7.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : tptp2X_and_run_eqp %s

% Computer : n014.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 : Sat Jul 16 08:47:52 EDT 2022

% Result   : Unsatisfiable 0.70s 1.10s
% Output   : Refutation 0.70s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    8
%            Number of leaves      :    2
% Syntax   : Number of clauses     :   16 (  16 unt;   0 nHn;   3 RR)
%            Number of literals    :   16 (   0 equ;   2 neg)
%            Maximal clause size   :    1 (   1 avg)
%            Maximal term depth    :    5 (   2 avg)
%            Number of predicates  :    2 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    5 (   5 usr;   3 con; 0-2 aty)
%            Number of variables   :   28 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,plain,
    equal(divide(divide(A,divide(divide(A,B),C)),B),C),
    file('GRP536-1.p',unknown),
    [] ).

cnf(2,plain,
    equal(multiply(A,B),divide(A,divide(divide(C,C),B))),
    file('GRP536-1.p',unknown),
    [] ).

cnf(3,plain,
    equal(divide(A,divide(divide(B,B),C)),multiply(A,C)),
    inference(flip,[status(thm),theory(equality)],[2]),
    [iquote('flip(2)')] ).

cnf(6,plain,
    equal(divide(A,A),identity),
    inference(flip,[status(thm),theory(equality)],[1]),
    [iquote('flip(1)')] ).

cnf(8,plain,
    equal(multiply(A,B),divide(A,divide(identity,B))),
    inference(flip,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[3]),6]),1]),
    [iquote('back_demod(3),demod([6]),flip(1)')] ).

cnf(9,plain,
    ~ equal(divide(a,divide(identity,b)),divide(b,divide(identity,a))),
    inference(demod,[status(thm),theory(equality)],[8,8]),
    [iquote('demod([8,8])')] ).

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

cnf(12,plain,
    equal(divide(divide(A,divide(identity,B)),A),B),
    inference(para,[status(thm),theory(equality)],[6,1]),
    [iquote('para(6,1)')] ).

cnf(14,plain,
    equal(divide(identity,divide(identity,A)),A),
    inference(para,[status(thm),theory(equality)],[6,12]),
    [iquote('para(6,12)')] ).

cnf(16,plain,
    equal(divide(divide(A,B),A),divide(identity,B)),
    inference(para,[status(thm),theory(equality)],[14,12]),
    [iquote('para(14,12)')] ).

cnf(17,plain,
    equal(divide(A,identity),A),
    inference(para,[status(thm),theory(equality)],[14,12]),
    [iquote('para(14,12)')] ).

cnf(18,plain,
    equal(divide(A,divide(A,B)),B),
    inference(demod,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[17,1]),17]),
    [iquote('para(17,1),demod([17])')] ).

cnf(19,plain,
    equal(divide(A,B),divide(identity,divide(B,A))),
    inference(para,[status(thm),theory(equality)],[18,16]),
    [iquote('para(18,16)')] ).

cnf(43,plain,
    equal(divide(identity,divide(divide(A,B),C)),divide(B,divide(A,C))),
    inference(flip,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[11,16]),1]),
    [iquote('para(11,16),flip(1)')] ).

cnf(55,plain,
    ~ equal(divide(b,divide(identity,a)),divide(b,divide(identity,a))),
    inference(demod,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[19,9]),43]),
    [iquote('para(19,9),demod([43])')] ).

cnf(56,plain,
    $false,
    inference(conflict,[status(thm)],[55]),
    [iquote('xx_conflict(55)')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : GRP536-1 : TPTP v8.1.0. Bugfixed v2.7.0.
% 0.07/0.13  % Command  : tptp2X_and_run_eqp %s
% 0.13/0.34  % Computer : n014.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit : 300
% 0.13/0.34  % WCLimit  : 600
% 0.13/0.34  % DateTime : Mon Jun 13 12:55:07 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.70/1.10  ----- EQP 0.9e, May 2009 -----
% 0.70/1.10  The job began on n014.cluster.edu, Mon Jun 13 12:55:08 2022
% 0.70/1.10  The command was "./eqp09e".
% 0.70/1.10  
% 0.70/1.10  set(prolog_style_variables).
% 0.70/1.10  set(lrpo).
% 0.70/1.10  set(basic_paramod).
% 0.70/1.10  set(functional_subsume).
% 0.70/1.10  set(ordered_paramod).
% 0.70/1.10  set(prime_paramod).
% 0.70/1.10  set(para_pairs).
% 0.70/1.10  assign(pick_given_ratio,4).
% 0.70/1.10  clear(print_kept).
% 0.70/1.10  clear(print_new_demod).
% 0.70/1.10  clear(print_back_demod).
% 0.70/1.10  clear(print_given).
% 0.70/1.10  assign(max_mem,64000).
% 0.70/1.10  end_of_commands.
% 0.70/1.10  
% 0.70/1.10  Usable:
% 0.70/1.10  end_of_list.
% 0.70/1.10  
% 0.70/1.10  Sos:
% 0.70/1.10  0 (wt=-1) [] divide(divide(A,divide(divide(A,B),C)),B) = C.
% 0.70/1.10  0 (wt=-1) [] multiply(A,B) = divide(A,divide(divide(C,C),B)).
% 0.70/1.10  0 (wt=-1) [] inverse(A) = divide(divide(B,B),A).
% 0.70/1.10  0 (wt=-1) [] identity = divide(A,A).
% 0.70/1.10  0 (wt=-1) [] -(multiply(a,b) = multiply(b,a)).
% 0.70/1.10  end_of_list.
% 0.70/1.10  
% 0.70/1.10  Demodulators:
% 0.70/1.10  end_of_list.
% 0.70/1.10  
% 0.70/1.10  Passive:
% 0.70/1.10  end_of_list.
% 0.70/1.10  
% 0.70/1.10  Starting to process input.
% 0.70/1.10  
% 0.70/1.10  ** KEPT: 1 (wt=11) [] divide(divide(A,divide(divide(A,B),C)),B) = C.
% 0.70/1.10  1 is a new demodulator.
% 0.70/1.10  
% 0.70/1.10  ** KEPT: 2 (wt=11) [] multiply(A,B) = divide(A,divide(divide(C,C),B)).
% 0.70/1.10  
% 0.70/1.10  ** KEPT: 3 (wt=11) [flip(2)] divide(A,divide(divide(B,B),C)) = multiply(A,C).
% 0.70/1.10  clause forward subsumed: 0 (wt=11) [flip(3)] multiply(A,C) = divide(A,divide(divide(B,B),C)).
% 0.70/1.10  
% 0.70/1.10  ** KEPT: 4 (wt=8) [] inverse(A) = divide(divide(B,B),A).
% 0.70/1.10  
% 0.70/1.10  ** KEPT: 5 (wt=8) [flip(4)] divide(divide(A,A),B) = inverse(B).
% 0.70/1.10  clause forward subsumed: 0 (wt=8) [flip(5)] inverse(B) = divide(divide(A,A),B).
% 0.70/1.10  
% 0.70/1.10  ** KEPT: 6 (wt=5) [flip(1)] divide(A,A) = identity.
% 0.70/1.10  6 is a new demodulator.
% 0.70/1.10      -> 6 back demodulating 5.
% 0.70/1.10  
% 0.70/1.10  ** KEPT: 7 (wt=6) [back_demod(5),demod([6]),flip(1)] inverse(A) = divide(identity,A).
% 0.70/1.10  7 is a new demodulator.
% 0.70/1.10      -> 7 back demodulating 4.
% 0.70/1.10  clause forward subsumed: 0 (wt=7) [back_demod(4),demod([7,6])] divide(identity,A) = divide(identity,A).
% 0.70/1.10      -> 6 back demodulating 3.
% 0.70/1.10  
% 0.70/1.10  ** KEPT: 8 (wt=9) [back_demod(3),demod([6]),flip(1)] multiply(A,B) = divide(A,divide(identity,B)).
% 0.70/1.10  8 is a new demodulator.
% 0.70/1.10      -> 8 back demodulating 2.
% 0.70/1.10  clause forward subsumed: 0 (wt=11) [back_demod(2),demod([8,6])] divide(A,divide(identity,B)) = divide(A,divide(identity,B)).
% 0.70/1.10  
% 0.70/1.10  ** KEPT: 9 (wt=11) [demod([8,8])] -(divide(a,divide(identity,b)) = divide(b,divide(identity,a))).
% 0.70/1.10  ---------------- PROOF FOUND ----------------
% 0.70/1.10  % SZS status Unsatisfiable
% 0.70/1.10  
% 0.70/1.10  
% 0.70/1.10  After processing input:
% 0.70/1.10  
% 0.70/1.10  Usable:
% 0.70/1.10  end_of_list.
% 0.70/1.10  
% 0.70/1.10  Sos:
% 0.70/1.10  6 (wt=5) [flip(1)] divide(A,A) = identity.
% 0.70/1.10  7 (wt=6) [back_demod(5),demod([6]),flip(1)] inverse(A) = divide(identity,A).
% 0.70/1.10  8 (wt=9) [back_demod(3),demod([6]),flip(1)] multiply(A,B) = divide(A,divide(identity,B)).
% 0.70/1.10  1 (wt=11) [] divide(divide(A,divide(divide(A,B),C)),B) = C.
% 0.70/1.10  9 (wt=11) [demod([8,8])] -(divide(a,divide(identity,b)) = divide(b,divide(identity,a))).
% 0.70/1.10  end_of_list.
% 0.70/1.10  
% 0.70/1.10  Demodulators:
% 0.70/1.10  1 (wt=11) [] divide(divide(A,divide(divide(A,B),C)),B) = C.
% 0.70/1.10  6 (wt=5) [flip(1)] divide(A,A) = identity.
% 0.70/1.10  7 (wt=6) [back_demod(5),demod([6]),flip(1)] inverse(A) = divide(identity,A).
% 0.70/1.10  8 (wt=9) [back_demod(3),demod([6]),flip(1)] multiply(A,B) = divide(A,divide(identity,B)).
% 0.70/1.10  end_of_list.
% 0.70/1.10  
% 0.70/1.10  Passive:
% 0.70/1.10  end_of_list.
% 0.70/1.10  
% 0.70/1.10  UNIT CONFLICT from 55 and x=x at   0.00 seconds.
% 0.70/1.10  
% 0.70/1.10  ---------------- PROOF ----------------
% 0.70/1.10  % SZS output start Refutation
% See solution above
% 0.70/1.10  ------------ end of proof -------------
% 0.70/1.10  
% 0.70/1.10  
% 0.70/1.10  ------------- memory usage ------------
% 0.70/1.10  Memory dynamically allocated (tp_alloc): 488.
% 0.70/1.10    type (bytes each)        gets      frees     in use      avail      bytes
% 0.70/1.10  sym_ent (  96)               57          0         57          0      5.3 K
% 0.70/1.10  term (  16)                3417       2765        652         14     12.8 K
% 0.70/1.10  gen_ptr (   8)             3335        928       2407         15     18.9 K
% 0.70/1.10  context ( 808)             2104       2102          2          3      3.9 K
% 0.70/1.10  trail (  12)                295        295          0          6      0.1 K
% 0.70/1.10  bt_node (  68)              885        882          3         10      0.9 K
% 0.70/1.10  ac_position (285432)          0          0          0          0      0.0 K
% 0.70/1.10  ac_match_pos (14044)          0          0          0          0      0.0 K
% 0.70/1.10  ac_match_free_vars_pos (4020)
% 0.70/1.10                                0          0          0          0      0.0 K
% 0.70/1.10  discrim (  12)              591        149        442          0      5.2 K
% 0.70/1.10  flat (  40)                4705       4705          0         21      0.8 K
% 0.70/1.10  discrim_pos (  12)          133        133          0          1      0.0 K
% 0.70/1.10  fpa_head (  12)             275          0        275          0      3.2 K
% 0.70/1.10  fpa_tree (  28)             120        120          0         13      0.4 K
% 0.70/1.10  fpa_pos (  36)               97         97          0          1      0.0 K
% 0.70/1.10  literal (  12)              226        171         55          1      0.7 K
% 0.70/1.10  clause (  24)               226        171         55          1      1.3 K
% 0.70/1.10  list (  12)                 102         46         56          4      0.7 K
% 0.70/1.10  list_pos (  20)             242         78        164          0      3.2 K
% 0.70/1.10  pair_index (   40)              2          0          2          0      0.1 K
% 0.70/1.10  
% 0.70/1.10  -------------- statistics -------------
% 0.70/1.10  Clauses input                  5
% 0.70/1.10    Usable input                   0
% 0.70/1.10    Sos input                      5
% 0.70/1.10    Demodulators input             0
% 0.70/1.10    Passive input                  0
% 0.70/1.10  
% 0.70/1.10  Processed BS (before search)  13
% 0.70/1.10  Forward subsumed BS            4
% 0.70/1.10  Kept BS                        9
% 0.70/1.10  New demodulators BS            4
% 0.70/1.10  Back demodulated BS            4
% 0.70/1.10  
% 0.70/1.10  Clauses or pairs given       150
% 0.70/1.10  Clauses generated            146
% 0.70/1.10  Forward subsumed             100
% 0.70/1.10  Deleted by weight              0
% 0.70/1.10  Deleted by variable count      0
% 0.70/1.10  Kept                          46
% 0.70/1.10  New demodulators              39
% 0.70/1.10  Back demodulated              11
% 0.70/1.10  Ordered paramod prunes         0
% 0.70/1.10  Basic paramod prunes         319
% 0.70/1.10  Prime paramod prunes          10
% 0.70/1.10  Semantic prunes                0
% 0.70/1.10  
% 0.70/1.10  Rewrite attmepts             957
% 0.70/1.10  Rewrites                     109
% 0.70/1.10  
% 0.70/1.10  FPA overloads                  0
% 0.70/1.10  FPA underloads                 0
% 0.70/1.10  
% 0.70/1.10  Usable size                    0
% 0.70/1.10  Sos size                      39
% 0.70/1.10  Demodulators size             32
% 0.70/1.10  Passive size                   0
% 0.70/1.10  Disabled size                 15
% 0.70/1.10  
% 0.70/1.10  Proofs found                   1
% 0.70/1.10  
% 0.70/1.10  ----------- times (seconds) ----------- Mon Jun 13 12:55:08 2022
% 0.70/1.10  
% 0.70/1.10  user CPU time             0.00   (0 hr, 0 min, 0 sec)
% 0.70/1.10  system CPU time           0.01   (0 hr, 0 min, 0 sec)
% 0.70/1.10  wall-clock time           0      (0 hr, 0 min, 0 sec)
% 0.70/1.10  input time                0.00
% 0.70/1.10  paramodulation time       0.00
% 0.70/1.10  demodulation time         0.00
% 0.70/1.10  orient time               0.00
% 0.70/1.10  weigh time                0.00
% 0.70/1.10  forward subsume time      0.00
% 0.70/1.10  back demod find time      0.00
% 0.70/1.10  conflict time             0.00
% 0.70/1.10  LRPO time                 0.00
% 0.70/1.10  store clause time         0.00
% 0.70/1.10  disable clause time       0.00
% 0.70/1.10  prime paramod time        0.00
% 0.70/1.10  semantics time            0.00
% 0.70/1.10  
% 0.70/1.10  EQP interrupted
%------------------------------------------------------------------------------