TSTP Solution File: LCL154-1 by EQP---0.9e

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : EQP---0.9e
% Problem  : LCL154-1 : TPTP v8.1.0. Released v1.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : tptp2X_and_run_eqp %s

% Computer : n013.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 : Sun Jul 17 09:41:21 EDT 2022

% Result   : Unsatisfiable 0.77s 1.17s
% Output   : Refutation 0.77s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   16
%            Number of leaves      :   12
% Syntax   : Number of clauses     :   57 (  57 unt;   0 nHn;  11 RR)
%            Number of literals    :   57 (   0 equ;   5 neg)
%            Maximal clause size   :    1 (   1 avg)
%            Maximal term depth    :    7 (   2 avg)
%            Number of predicates  :    2 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    8 (   8 usr;   3 con; 0-2 aty)
%            Number of variables   :   73 (   4 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,plain,
    equal(implies(truth,A),A),
    file('LCL154-1.p',unknown),
    [] ).

cnf(2,plain,
    equal(implies(implies(A,B),implies(implies(B,C),implies(A,C))),truth),
    file('LCL154-1.p',unknown),
    [] ).

cnf(3,plain,
    equal(implies(implies(A,B),B),implies(implies(B,A),A)),
    file('LCL154-1.p',unknown),
    [] ).

cnf(4,plain,
    equal(implies(implies(not(A),not(B)),implies(B,A)),truth),
    file('LCL154-1.p',unknown),
    [] ).

cnf(5,plain,
    equal(or(A,B),implies(not(A),B)),
    file('LCL154-1.p',unknown),
    [] ).

cnf(6,plain,
    equal(implies(not(A),B),or(A,B)),
    inference(flip,[status(thm),theory(equality)],[5]),
    [iquote('flip(5)')] ).

cnf(8,plain,
    equal(or(A,B),or(B,A)),
    file('LCL154-1.p',unknown),
    [] ).

cnf(9,plain,
    equal(not(or(not(A),not(B))),and(A,B)),
    inference(flip,[status(thm),theory(equality)],[1]),
    [iquote('flip(1)')] ).

cnf(10,plain,
    equal(and(and(A,B),C),and(A,and(B,C))),
    file('LCL154-1.p',unknown),
    [] ).

cnf(11,plain,
    equal(and(A,B),and(B,A)),
    file('LCL154-1.p',unknown),
    [] ).

cnf(12,plain,
    equal(xor(A,B),or(and(A,not(B)),and(not(A),B))),
    file('LCL154-1.p',unknown),
    [] ).

cnf(13,plain,
    equal(or(and(A,not(B)),and(not(A),B)),xor(A,B)),
    inference(flip,[status(thm),theory(equality)],[12]),
    [iquote('flip(12)')] ).

cnf(14,plain,
    equal(xor(A,B),xor(B,A)),
    file('LCL154-1.p',unknown),
    [] ).

cnf(16,plain,
    equal(not(truth),falsehood),
    file('LCL154-1.p',unknown),
    [] ).

cnf(17,plain,
    ~ equal(xor(x,falsehood),x),
    file('LCL154-1.p',unknown),
    [] ).

cnf(18,plain,
    equal(implies(A,implies(implies(A,B),B)),truth),
    inference(demod,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[1,2]),1]),
    [iquote('para(1,2),demod([1])')] ).

cnf(32,plain,
    equal(implies(implies(not(A),falsehood),A),truth),
    inference(demod,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[1,4]),16]),
    [iquote('para(1,4),demod([16])')] ).

cnf(33,plain,
    equal(or(truth,A),implies(falsehood,A)),
    inference(flip,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[16,6]),1]),
    [iquote('para(16,6),flip(1)')] ).

cnf(51,plain,
    equal(implies(A,A),truth),
    inference(demod,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[1,18]),1]),
    [iquote('para(1,18),demod([1])')] ).

cnf(56,plain,
    equal(or(A,not(A)),truth),
    inference(flip,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[51,6]),1]),
    [iquote('para(51,6),flip(1)')] ).

cnf(58,plain,
    equal(or(A,B),implies(not(B),A)),
    inference(para,[status(thm),theory(equality)],[8,5]),
    [iquote('para(8,5)')] ).

cnf(65,plain,
    equal(not(implies(not(not(A)),not(B))),and(A,B)),
    inference(para,[status(thm),theory(equality)],[5,9]),
    [iquote('para(5,9)')] ).

cnf(67,plain,
    equal(implies(not(not(A)),A),truth),
    inference(para,[status(thm),theory(equality)],[58,56]),
    [iquote('para(58,56)')] ).

cnf(70,plain,
    equal(not(or(falsehood,not(A))),and(truth,A)),
    inference(para,[status(thm),theory(equality)],[16,9]),
    [iquote('para(16,9)')] ).

cnf(72,plain,
    equal(not(or(falsehood,falsehood)),and(truth,truth)),
    inference(para,[status(thm),theory(equality)],[16,70]),
    [iquote('para(16,70)')] ).

cnf(73,plain,
    equal(implies(not(A),truth),implies(falsehood,A)),
    inference(para,[status(thm),theory(equality)],[58,33]),
    [iquote('para(58,33)')] ).

cnf(78,plain,
    equal(not(falsehood),truth),
    inference(demod,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[67,32]),1]),
    [iquote('para(67,32),demod([1])')] ).

cnf(79,plain,
    equal(or(falsehood,A),A),
    inference(flip,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[78,6]),1]),1]),
    [iquote('para(78,6),demod([1]),flip(1)')] ).

cnf(80,plain,
    equal(and(truth,truth),truth),
    inference(flip,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[72]),79,78]),1]),
    [iquote('back_demod(72),demod([79,78]),flip(1)')] ).

cnf(81,plain,
    equal(not(not(A)),and(truth,A)),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[70]),79]),
    [iquote('back_demod(70),demod([79])')] ).

cnf(83,plain,
    equal(not(implies(and(truth,A),not(B))),and(A,B)),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[65]),81]),
    [iquote('back_demod(65),demod([81])')] ).

cnf(86,plain,
    equal(and(truth,falsehood),falsehood),
    inference(flip,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[78,81]),16]),1]),
    [iquote('para(78,81),demod([16]),flip(1)')] ).

cnf(87,plain,
    equal(implies(not(and(A,not(B))),and(not(A),B)),xor(A,B)),
    inference(flip,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[13,5]),1]),
    [iquote('para(13,5),flip(1)')] ).

cnf(104,plain,
    equal(xor(A,B),or(and(B,not(A)),and(not(B),A))),
    inference(para,[status(thm),theory(equality)],[14,12]),
    [iquote('para(14,12)')] ).

cnf(105,plain,
    equal(or(and(A,not(B)),and(not(A),B)),xor(B,A)),
    inference(flip,[status(thm),theory(equality)],[104]),
    [iquote('flip(104)')] ).

cnf(106,plain,
    equal(implies(not(A),falsehood),A),
    inference(flip,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[79,58]),1]),
    [iquote('para(79,58),flip(1)')] ).

cnf(110,plain,
    equal(not(A),implies(and(truth,A),falsehood)),
    inference(flip,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[81,106]),1]),
    [iquote('para(81,106),flip(1)')] ).

cnf(114,plain,
    equal(implies(implies(and(truth,A),falsehood),falsehood),A),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[106]),110]),
    [iquote('back_demod(106),demod([110])')] ).

cnf(115,plain,
    equal(xor(A,B),or(and(B,implies(and(truth,A),falsehood)),and(implies(and(truth,B),falsehood),A))),
    inference(flip,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[105]),110,110]),1]),
    [iquote('back_demod(105),demod([110,110]),flip(1)')] ).

cnf(130,plain,
    equal(or(and(A,implies(and(truth,B),falsehood)),and(implies(and(truth,A),falsehood),B)),implies(implies(and(truth,and(B,implies(and(truth,A),falsehood))),falsehood),and(implies(and(truth,B),falsehood),A))),
    inference(flip,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[87]),110,110,110,115]),1]),
    [iquote('back_demod(87),demod([110,110,110,115]),flip(1)')] ).

cnf(137,plain,
    equal(xor(A,B),implies(implies(and(truth,and(A,implies(and(truth,B),falsehood))),falsehood),and(implies(and(truth,A),falsehood),B))),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[115]),130]),
    [iquote('back_demod(115),demod([130])')] ).

cnf(139,plain,
    ~ equal(implies(implies(and(truth,and(x,truth)),falsehood),and(implies(and(truth,x),falsehood),falsehood)),x),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[17]),137,86,51]),
    [iquote('back_demod(17),demod([137,86,51])')] ).

cnf(142,plain,
    equal(implies(and(truth,implies(and(truth,A),implies(and(truth,B),falsehood))),falsehood),and(A,B)),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[83]),110,110]),
    [iquote('back_demod(83),demod([110,110])')] ).

cnf(144,plain,
    equal(implies(implies(and(truth,A),falsehood),truth),implies(falsehood,A)),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[73]),110]),
    [iquote('back_demod(73),demod([110])')] ).

cnf(203,plain,
    equal(implies(A,implies(implies(B,A),A)),truth),
    inference(para,[status(thm),theory(equality)],[3,18]),
    [iquote('para(3,18)')] ).

cnf(211,plain,
    equal(implies(A,truth),truth),
    inference(demod,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[1,203]),51]),
    [iquote('para(1,203),demod([51])')] ).

cnf(214,plain,
    equal(implies(falsehood,A),truth),
    inference(flip,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[144]),211]),1]),
    [iquote('back_demod(144),demod([211]),flip(1)')] ).

cnf(244,plain,
    equal(and(truth,and(truth,A)),and(truth,A)),
    inference(flip,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[80,10]),1]),
    [iquote('para(80,10),flip(1)')] ).

cnf(248,plain,
    equal(and(truth,and(A,truth)),and(truth,A)),
    inference(flip,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[244,11]),10]),1]),
    [iquote('para(244,11),demod([10]),flip(1)')] ).

cnf(250,plain,
    ~ equal(implies(implies(and(truth,x),falsehood),and(implies(and(truth,x),falsehood),falsehood)),x),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[139]),248]),
    [iquote('back_demod(139),demod([248])')] ).

cnf(325,plain,
    equal(implies(implies(A,falsehood),falsehood),A),
    inference(flip,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[214,3]),1]),1]),
    [iquote('para(214,3),demod([1]),flip(1)')] ).

cnf(327,plain,
    equal(and(truth,A),A),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[114]),325]),
    [iquote('back_demod(114),demod([325])')] ).

cnf(330,plain,
    ~ equal(implies(implies(x,falsehood),and(implies(x,falsehood),falsehood)),x),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[250]),327,327]),
    [iquote('back_demod(250),demod([327,327])')] ).

cnf(362,plain,
    equal(implies(implies(A,implies(B,falsehood)),falsehood),and(A,B)),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[142]),327,327,327]),
    [iquote('back_demod(142),demod([327,327,327])')] ).

cnf(373,plain,
    equal(and(A,falsehood),falsehood),
    inference(flip,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[51,362]),211,1]),1]),
    [iquote('para(51,362),demod([211,1]),flip(1)')] ).

cnf(374,plain,
    ~ equal(x,x),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[330]),373,325]),
    [iquote('back_demod(330),demod([373,325])')] ).

cnf(375,plain,
    $false,
    inference(conflict,[status(thm)],[374]),
    [iquote('xx_conflict(374)')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.13  % Problem  : LCL154-1 : TPTP v8.1.0. Released v1.0.0.
% 0.03/0.14  % Command  : tptp2X_and_run_eqp %s
% 0.13/0.35  % Computer : n013.cluster.edu
% 0.13/0.35  % Model    : x86_64 x86_64
% 0.13/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.35  % Memory   : 8042.1875MB
% 0.13/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.35  % CPULimit : 300
% 0.13/0.35  % WCLimit  : 600
% 0.13/0.35  % DateTime : Sun Jul  3 12:06:59 EDT 2022
% 0.13/0.35  % CPUTime  : 
% 0.77/1.17  ----- EQP 0.9e, May 2009 -----
% 0.77/1.17  The job began on n013.cluster.edu, Sun Jul  3 12:07:00 2022
% 0.77/1.17  The command was "./eqp09e".
% 0.77/1.17  
% 0.77/1.17  set(prolog_style_variables).
% 0.77/1.17  set(lrpo).
% 0.77/1.17  set(basic_paramod).
% 0.77/1.17  set(functional_subsume).
% 0.77/1.17  set(ordered_paramod).
% 0.77/1.17  set(prime_paramod).
% 0.77/1.17  set(para_pairs).
% 0.77/1.17  assign(pick_given_ratio,4).
% 0.77/1.17  clear(print_kept).
% 0.77/1.17  clear(print_new_demod).
% 0.77/1.17  clear(print_back_demod).
% 0.77/1.17  clear(print_given).
% 0.77/1.17  assign(max_mem,64000).
% 0.77/1.17  end_of_commands.
% 0.77/1.17  
% 0.77/1.17  Usable:
% 0.77/1.17  end_of_list.
% 0.77/1.17  
% 0.77/1.17  Sos:
% 0.77/1.17  0 (wt=-1) [] implies(truth,A) = A.
% 0.77/1.17  0 (wt=-1) [] implies(implies(A,B),implies(implies(B,C),implies(A,C))) = truth.
% 0.77/1.17  0 (wt=-1) [] implies(implies(A,B),B) = implies(implies(B,A),A).
% 0.77/1.17  0 (wt=-1) [] implies(implies(not(A),not(B)),implies(B,A)) = truth.
% 0.77/1.17  0 (wt=-1) [] or(A,B) = implies(not(A),B).
% 0.77/1.17  0 (wt=-1) [] or(or(A,B),C) = or(A,or(B,C)).
% 0.77/1.17  0 (wt=-1) [] or(A,B) = or(B,A).
% 0.77/1.17  0 (wt=-1) [] and(A,B) = not(or(not(A),not(B))).
% 0.77/1.17  0 (wt=-1) [] and(and(A,B),C) = and(A,and(B,C)).
% 0.77/1.17  0 (wt=-1) [] and(A,B) = and(B,A).
% 0.77/1.17  0 (wt=-1) [] xor(A,B) = or(and(A,not(B)),and(not(A),B)).
% 0.77/1.17  0 (wt=-1) [] xor(A,B) = xor(B,A).
% 0.77/1.17  0 (wt=-1) [] and_star(A,B) = not(or(not(A),not(B))).
% 0.77/1.17  0 (wt=-1) [] and_star(and_star(A,B),C) = and_star(A,and_star(B,C)).
% 0.77/1.17  0 (wt=-1) [] and_star(A,B) = and_star(B,A).
% 0.77/1.17  0 (wt=-1) [] not(truth) = falsehood.
% 0.77/1.17  0 (wt=-1) [] -(xor(x,falsehood) = x).
% 0.77/1.17  end_of_list.
% 0.77/1.17  
% 0.77/1.17  Demodulators:
% 0.77/1.17  end_of_list.
% 0.77/1.17  
% 0.77/1.17  Passive:
% 0.77/1.17  end_of_list.
% 0.77/1.17  
% 0.77/1.17  Starting to process input.
% 0.77/1.17  
% 0.77/1.17  ** KEPT: 1 (wt=5) [] implies(truth,A) = A.
% 0.77/1.17  1 is a new demodulator.
% 0.77/1.17  
% 0.77/1.17  ** KEPT: 2 (wt=13) [] implies(implies(A,B),implies(implies(B,C),implies(A,C))) = truth.
% 0.77/1.17  2 is a new demodulator.
% 0.77/1.17  
% 0.77/1.17  ** KEPT: 3 (wt=11) [] implies(implies(A,B),B) = implies(implies(B,A),A).
% 0.77/1.17  clause forward subsumed: 0 (wt=11) [flip(3)] implies(implies(B,A),A) = implies(implies(A,B),B).
% 0.77/1.17  
% 0.77/1.17  ** KEPT: 4 (wt=11) [] implies(implies(not(A),not(B)),implies(B,A)) = truth.
% 0.77/1.17  4 is a new demodulator.
% 0.77/1.17  
% 0.77/1.17  ** KEPT: 5 (wt=8) [] or(A,B) = implies(not(A),B).
% 0.77/1.17  
% 0.77/1.17  ** KEPT: 6 (wt=8) [flip(5)] implies(not(A),B) = or(A,B).
% 0.77/1.17  clause forward subsumed: 0 (wt=8) [flip(6)] or(A,B) = implies(not(A),B).
% 0.77/1.17  
% 0.77/1.17  ** KEPT: 7 (wt=11) [] or(or(A,B),C) = or(A,or(B,C)).
% 0.77/1.17  7 is a new demodulator.
% 0.77/1.17  
% 0.77/1.17  ** KEPT: 8 (wt=7) [] or(A,B) = or(B,A).
% 0.77/1.17  clause forward subsumed: 0 (wt=7) [flip(8)] or(B,A) = or(A,B).
% 0.77/1.17  
% 0.77/1.17  ** KEPT: 9 (wt=10) [flip(1)] not(or(not(A),not(B))) = and(A,B).
% 0.77/1.17  9 is a new demodulator.
% 0.77/1.17  
% 0.77/1.17  ** KEPT: 10 (wt=11) [] and(and(A,B),C) = and(A,and(B,C)).
% 0.77/1.17  10 is a new demodulator.
% 0.77/1.17  
% 0.77/1.17  ** KEPT: 11 (wt=7) [] and(A,B) = and(B,A).
% 0.77/1.17  clause forward subsumed: 0 (wt=7) [flip(11)] and(B,A) = and(A,B).
% 0.77/1.17  
% 0.77/1.17  ** KEPT: 12 (wt=13) [] xor(A,B) = or(and(A,not(B)),and(not(A),B)).
% 0.77/1.17  
% 0.77/1.17  ** KEPT: 13 (wt=13) [flip(12)] or(and(A,not(B)),and(not(A),B)) = xor(A,B).
% 0.77/1.17  clause forward subsumed: 0 (wt=13) [flip(13)] xor(A,B) = or(and(A,not(B)),and(not(A),B)).
% 0.77/1.17  
% 0.77/1.17  ** KEPT: 14 (wt=7) [] xor(A,B) = xor(B,A).
% 0.77/1.17  clause forward subsumed: 0 (wt=7) [flip(14)] xor(B,A) = xor(A,B).
% 0.77/1.17  
% 0.77/1.17  ** KEPT: 15 (wt=7) [demod([9])] and_star(A,B) = and(A,B).
% 0.77/1.17  15 is a new demodulator.
% 0.77/1.17  clause forward subsumed: 0 (wt=11) [demod([15,15,10,15,15])] and(A,and(B,C)) = and(A,and(B,C)).
% 0.77/1.17  clause forward subsumed: 0 (wt=7) [demod([15,15])] and(A,B) = and(B,A).
% 0.77/1.17  
% 0.77/1.17  ** KEPT: 16 (wt=4) [] not(truth) = falsehood.
% 0.77/1.17  16 is a new demodulator.
% 0.77/1.17  
% 0.77/1.17  ** KEPT: 17 (wt=5) [] -(xor(x,falsehood) = x).
% 0.77/1.17  ---------------- PROOF FOUND ----------------
% 0.77/1.17  % SZS status Unsatisfiable
% 0.77/1.17  
% 0.77/1.17  
% 0.77/1.17  After processing input:
% 0.77/1.17  
% 0.77/1.17  Usable:
% 0.77/1.17  end_of_list.
% 0.77/1.17  
% 0.77/1.17  Sos:
% 0.77/1.17  16 (wt=4) [] not(truth) = falsehood.
% 0.77/1.17  1 (wt=5) [] implies(truth,A) = A.
% 0.77/1.17  17 (wt=5) [] -(xor(x,falsehood) = x).
% 0.77/1.17  8 (wt=7) [] or(A,B) = or(B,A).
% 0.77/1.17  11 (wt=7) [] and(A,B) = and(B,A).
% 0.77/1.17  14 (wt=7) [] xor(A,B) = xor(B,A).
% 0.77/1.17  15 (wt=7) [demod([9])] and_star(A,B) = and(A,B).
% 0.77/1.17  5 (wt=8) [] or(A,B) = implies(not(A),B).
% 0.77/1.17  6 (wt=8) [flip(5)] implies(not(A),B) = or(A,B).
% 0.77/1.17  9 (wt=10) [flip(1)] not(or(not(A),not(B))) = and(A,B).
% 0.77/1.17  3 (wt=11) [] implies(implies(A,B),B) = implies(implies(B,A),A).
% 0.77/1.17  4 (wt=11) [] implies(implies(not(A),not(B)),implies(B,A)) = truth.
% 0.77/1.17  7 (wt=11) [] or(or(A,B),C) = or(A,or(B,C)).
% 0.77/1.17  10 (wt=11) [] and(and(A,B),C) = and(A,and(B,C)).
% 0.77/1.17  2 (wt=13) [] implies(implies(A,B),implies(implies(B,C),implies(A,C))) = truth.
% 0.77/1.17  12 (wt=13) [] xor(A,B) = or(and(A,not(B)),and(not(A),B)).
% 0.77/1.17  13 (wt=13) [flip(12)] or(and(A,not(B)),and(not(A),B)) = xor(A,B).
% 0.77/1.17  end_of_list.
% 0.77/1.17  
% 0.77/1.17  Demodulators:
% 0.77/1.17  1 (wt=5) [] implies(truth,A) = A.
% 0.77/1.17  2 (wt=13) [] implies(implies(A,B),implies(implies(B,C),implies(A,C))) = truth.
% 0.77/1.17  4 (wt=11) [] implies(implies(not(A),not(B)),implies(B,A)) = truth.
% 0.77/1.17  7 (wt=11) [] or(or(A,B),C) = or(A,or(B,C)).
% 0.77/1.17  9 (wt=10) [flip(1)] not(or(not(A),not(B))) = and(A,B).
% 0.77/1.17  10 (wt=11) [] and(and(A,B),C) = and(A,and(B,C)).
% 0.77/1.17  15 (wt=7) [demod([9])] and_star(A,B) = and(A,B).
% 0.77/1.17  16 (wt=4) [] not(truth) = falsehood.
% 0.77/1.17  end_of_list.
% 0.77/1.17  
% 0.77/1.17  Passive:
% 0.77/1.17  end_of_list.
% 0.77/1.17  
% 0.77/1.17  UNIT CONFLICT from 374 and x=x at   0.02 seconds.
% 0.77/1.17  
% 0.77/1.17  ---------------- PROOF ----------------
% 0.77/1.17  % SZS output start Refutation
% See solution above
% 0.77/1.18  ------------ end of proof -------------
% 0.77/1.18  
% 0.77/1.18  
% 0.77/1.18  ------------- memory usage ------------
% 0.77/1.18  Memory dynamically allocated (tp_alloc): 976.
% 0.77/1.18    type (bytes each)        gets      frees     in use      avail      bytes
% 0.77/1.18  sym_ent (  96)               60          0         60          0      5.6 K
% 0.77/1.18  term (  16)               29793      22237       7556         39    146.9 K
% 0.77/1.18  gen_ptr (   8)            43192       9372      33820         56    264.7 K
% 0.77/1.18  context ( 808)            23177      23175          2          3      3.9 K
% 0.77/1.18  trail (  12)               2323       2323          0          6      0.1 K
% 0.77/1.18  bt_node (  68)             6789       6786          3         14      1.1 K
% 0.77/1.18  ac_position (285432)          0          0          0          0      0.0 K
% 0.77/1.18  ac_match_pos (14044)          0          0          0          0      0.0 K
% 0.77/1.18  ac_match_free_vars_pos (4020)
% 0.77/1.18                                0          0          0          0      0.0 K
% 0.77/1.18  discrim (  12)             7380       3542       3838        487     50.7 K
% 0.77/1.18  flat (  40)               58574      58574          0         59      2.3 K
% 0.77/1.18  discrim_pos (  12)         1576       1576          0          1      0.0 K
% 0.77/1.18  fpa_head (  12)            2445          0       2445          0     28.7 K
% 0.77/1.18  fpa_tree (  28)            1801       1801          0         29      0.8 K
% 0.77/1.18  fpa_pos (  36)              636        636          0          1      0.0 K
% 0.77/1.18  literal (  12)             1452       1078        374          0      4.4 K
% 0.77/1.18  clause (  24)              1452       1078        374          0      8.8 K
% 0.77/1.18  list (  12)                 322        265         57          3      0.7 K
% 0.77/1.18  list_pos (  20)            1870       1029        841         21     16.8 K
% 0.77/1.18  pair_index (   40)              2          0          2          0      0.1 K
% 0.77/1.18  
% 0.77/1.18  -------------- statistics -------------
% 0.77/1.18  Clauses input                 17
% 0.77/1.18    Usable input                   0
% 0.77/1.18    Sos input                     17
% 0.77/1.18    Demodulators input             0
% 0.77/1.18    Passive input                  0
% 0.77/1.18  
% 0.77/1.18  Processed BS (before search)  25
% 0.77/1.18  Forward subsumed BS            8
% 0.77/1.18  Kept BS                       17
% 0.77/1.18  New demodulators BS            8
% 0.77/1.18  Back demodulated BS            0
% 0.77/1.18  
% 0.77/1.18  Clauses or pairs given      1063
% 0.77/1.18  Clauses generated            936
% 0.77/1.18  Forward subsumed             579
% 0.77/1.18  Deleted by weight              0
% 0.77/1.18  Deleted by variable count      0
% 0.77/1.18  Kept                         357
% 0.77/1.18  New demodulators             255
% 0.77/1.18  Back demodulated             208
% 0.77/1.18  Ordered paramod prunes         0
% 0.77/1.18  Basic paramod prunes        1266
% 0.77/1.18  Prime paramod prunes          48
% 0.77/1.18  Semantic prunes                0
% 0.77/1.18  
% 0.77/1.18  Rewrite attmepts           12943
% 0.77/1.18  Rewrites                    1414
% 0.77/1.18  
% 0.77/1.18  FPA overloads                  0
% 0.77/1.18  FPA underloads                 0
% 0.77/1.18  
% 0.77/1.18  Usable size                    0
% 0.77/1.18  Sos size                     165
% 0.77/1.18  Demodulators size            135
% 0.77/1.18  Passive size                   0
% 0.77/1.18  Disabled size                208
% 0.77/1.18  
% 0.77/1.18  Proofs found                   1
% 0.77/1.18  
% 0.77/1.18  ----------- times (seconds) ----------- Sun Jul  3 12:07:00 2022
% 0.77/1.18  
% 0.77/1.18  user CPU time             0.02   (0 hr, 0 min, 0 sec)
% 0.77/1.18  system CPU time           0.02   (0 hr, 0 min, 0 sec)
% 0.77/1.18  wall-clock time           0      (0 hr, 0 min, 0 sec)
% 0.77/1.18  input time                0.00
% 0.77/1.18  paramodulation time       0.00
% 0.77/1.18  demodulation time         0.01
% 0.77/1.18  orient time               0.00
% 0.77/1.18  weigh time                0.00
% 0.77/1.18  forward subsume time      0.00
% 0.77/1.18  back demod find time      0.00
% 0.77/1.18  conflict time             0.00
% 0.77/1.18  LRPO time                 0.00
% 0.77/1.18  store clause time         0.00
% 0.77/1.18  disable clause time       0.00
% 0.77/1.18  prime paramod time        0.00
% 0.77/1.18  semantics time            0.00
% 0.77/1.18  
% 0.77/1.18  EQP interrupted
%------------------------------------------------------------------------------