TSTP Solution File: LCL158-1 by EQP---0.9e

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : EQP---0.9e
% Problem  : LCL158-1 : TPTP v8.1.0. Released v1.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : tptp2X_and_run_eqp %s

% Computer : n021.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 09:41:22 EDT 2022

% Result   : Unsatisfiable 0.79s 1.17s
% Output   : Refutation 0.79s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   17
%            Number of leaves      :   11
% Syntax   : Number of clauses     :   59 (  59 unt;   0 nHn;  11 RR)
%            Number of literals    :   59 (   0 equ;   6 neg)
%            Maximal clause size   :    1 (   1 avg)
%            Maximal term depth    :    8 (   2 avg)
%            Number of predicates  :    2 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    9 (   9 usr;   3 con; 0-2 aty)
%            Number of variables   :   76 (   4 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,plain,
    equal(implies(truth,A),A),
    file('LCL158-1.p',unknown),
    [] ).

cnf(2,plain,
    equal(implies(implies(A,B),implies(implies(B,C),implies(A,C))),truth),
    file('LCL158-1.p',unknown),
    [] ).

cnf(3,plain,
    equal(implies(implies(A,B),B),implies(implies(B,A),A)),
    file('LCL158-1.p',unknown),
    [] ).

cnf(4,plain,
    equal(implies(implies(not(A),not(B)),implies(B,A)),truth),
    file('LCL158-1.p',unknown),
    [] ).

cnf(5,plain,
    equal(or(A,B),implies(not(A),B)),
    file('LCL158-1.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('LCL158-1.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('LCL158-1.p',unknown),
    [] ).

cnf(11,plain,
    equal(and(A,B),and(B,A)),
    file('LCL158-1.p',unknown),
    [] ).

cnf(12,plain,
    equal(xor(A,B),or(and(A,not(B)),and(not(A),B))),
    file('LCL158-1.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('LCL158-1.p',unknown),
    [] ).

cnf(15,plain,
    equal(and_star(A,B),and(A,B)),
    inference(demod,[status(thm),theory(equality)],[9]),
    [iquote('demod([9])')] ).

cnf(16,plain,
    equal(not(truth),falsehood),
    file('LCL158-1.p',unknown),
    [] ).

cnf(17,plain,
    ~ equal(and(xor(truth,x),x),falsehood),
    inference(demod,[status(thm),theory(equality)],[15]),
    [iquote('demod([15])')] ).

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(25,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(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(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(53,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(63,plain,
    equal(implies(not(not(A)),A),truth),
    inference(para,[status(thm),theory(equality)],[58,53]),
    [iquote('para(58,53)')] ).

cnf(66,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(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)],[58,25]),
    [iquote('para(58,25)')] ).

cnf(78,plain,
    equal(not(falsehood),truth),
    inference(demod,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[63,32]),1]),
    [iquote('para(63,32),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(82,plain,
    equal(not(implies(and(truth,A),not(B))),and(A,B)),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[66]),81]),
    [iquote('back_demod(66),demod([81])')] ).

cnf(88,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(108,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(110,plain,
    equal(implies(implies(and(truth,A),falsehood),falsehood),A),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[106]),108]),
    [iquote('back_demod(106),demod([108])')] ).

cnf(111,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]),108,108]),1]),
    [iquote('back_demod(105),demod([108,108]),flip(1)')] ).

cnf(125,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)],[88]),108,108,108,111]),1]),
    [iquote('back_demod(88),demod([108,108,108,111]),flip(1)')] ).

cnf(132,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)],[111]),125]),
    [iquote('back_demod(111),demod([125])')] ).

cnf(134,plain,
    ~ equal(and(implies(implies(and(truth,and(truth,implies(and(truth,x),falsehood))),falsehood),and(falsehood,x)),x),falsehood),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[17]),132,80,1]),
    [iquote('back_demod(17),demod([132,80,1])')] ).

cnf(137,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)],[82]),108,108]),
    [iquote('back_demod(82),demod([108,108])')] ).

cnf(138,plain,
    equal(implies(and(truth,implies(and(truth,A),falsehood)),falsehood),and(truth,A)),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[81]),108,108]),
    [iquote('back_demod(81),demod([108,108])')] ).

cnf(139,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]),108]),
    [iquote('back_demod(73),demod([108])')] ).

cnf(198,plain,
    equal(implies(A,implies(implies(B,A),A)),truth),
    inference(para,[status(thm),theory(equality)],[3,18]),
    [iquote('para(3,18)')] ).

cnf(203,plain,
    equal(implies(A,truth),truth),
    inference(demod,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[1,198]),51]),
    [iquote('para(1,198),demod([51])')] ).

cnf(206,plain,
    equal(implies(falsehood,A),truth),
    inference(flip,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[139]),203]),1]),
    [iquote('back_demod(139),demod([203]),flip(1)')] ).

cnf(241,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(242,plain,
    ~ equal(and(implies(and(truth,x),and(falsehood,x)),x),falsehood),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[134]),241,138]),
    [iquote('back_demod(134),demod([241,138])')] ).

cnf(321,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)],[206,3]),1]),1]),
    [iquote('para(206,3),demod([1]),flip(1)')] ).

cnf(324,plain,
    equal(and(truth,A),A),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[110]),321]),
    [iquote('back_demod(110),demod([321])')] ).

cnf(326,plain,
    ~ equal(and(implies(x,and(falsehood,x)),x),falsehood),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[242]),324]),
    [iquote('back_demod(242),demod([324])')] ).

cnf(358,plain,
    equal(implies(implies(A,implies(B,falsehood)),falsehood),and(A,B)),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[137]),324,324,324]),
    [iquote('back_demod(137),demod([324,324,324])')] ).

cnf(365,plain,
    ~ equal(and(implies(x,and(x,falsehood)),x),falsehood),
    inference(para,[status(thm),theory(equality)],[11,326]),
    [iquote('para(11,326)')] ).

cnf(368,plain,
    equal(and(A,falsehood),falsehood),
    inference(flip,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[51,358]),203,1]),1]),
    [iquote('para(51,358),demod([203,1]),flip(1)')] ).

cnf(369,plain,
    ~ equal(and(implies(x,falsehood),x),falsehood),
    inference(demod,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[365]),368]),
    [iquote('back_demod(365),demod([368])')] ).

cnf(371,plain,
    equal(and(implies(A,falsehood),A),falsehood),
    inference(flip,[status(thm),theory(equality)],[inference(demod,[status(thm),theory(equality)],[inference(para,[status(thm),theory(equality)],[51,358]),1]),1]),
    [iquote('para(51,358),demod([1]),flip(1)')] ).

cnf(372,plain,
    $false,
    inference(conflict,[status(thm)],[371,369]),
    [iquote('conflict(371,369)')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.13  % Problem  : LCL158-1 : TPTP v8.1.0. Released v1.0.0.
% 0.04/0.14  % Command  : tptp2X_and_run_eqp %s
% 0.14/0.35  % Computer : n021.cluster.edu
% 0.14/0.35  % Model    : x86_64 x86_64
% 0.14/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.35  % Memory   : 8042.1875MB
% 0.14/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.35  % CPULimit : 300
% 0.14/0.35  % WCLimit  : 600
% 0.14/0.35  % DateTime : Sat Jul  2 19:31:45 EDT 2022
% 0.14/0.35  % CPUTime  : 
% 0.79/1.17  ----- EQP 0.9e, May 2009 -----
% 0.79/1.17  The job began on n021.cluster.edu, Sat Jul  2 19:31:46 2022
% 0.79/1.17  The command was "./eqp09e".
% 0.79/1.17  
% 0.79/1.17  set(prolog_style_variables).
% 0.79/1.17  set(lrpo).
% 0.79/1.17  set(basic_paramod).
% 0.79/1.17  set(functional_subsume).
% 0.79/1.17  set(ordered_paramod).
% 0.79/1.17  set(prime_paramod).
% 0.79/1.17  set(para_pairs).
% 0.79/1.17  assign(pick_given_ratio,4).
% 0.79/1.17  clear(print_kept).
% 0.79/1.17  clear(print_new_demod).
% 0.79/1.17  clear(print_back_demod).
% 0.79/1.17  clear(print_given).
% 0.79/1.17  assign(max_mem,64000).
% 0.79/1.17  end_of_commands.
% 0.79/1.17  
% 0.79/1.17  Usable:
% 0.79/1.17  end_of_list.
% 0.79/1.17  
% 0.79/1.17  Sos:
% 0.79/1.17  0 (wt=-1) [] implies(truth,A) = A.
% 0.79/1.17  0 (wt=-1) [] implies(implies(A,B),implies(implies(B,C),implies(A,C))) = truth.
% 0.79/1.17  0 (wt=-1) [] implies(implies(A,B),B) = implies(implies(B,A),A).
% 0.79/1.17  0 (wt=-1) [] implies(implies(not(A),not(B)),implies(B,A)) = truth.
% 0.79/1.17  0 (wt=-1) [] or(A,B) = implies(not(A),B).
% 0.79/1.17  0 (wt=-1) [] or(or(A,B),C) = or(A,or(B,C)).
% 0.79/1.17  0 (wt=-1) [] or(A,B) = or(B,A).
% 0.79/1.17  0 (wt=-1) [] and(A,B) = not(or(not(A),not(B))).
% 0.79/1.17  0 (wt=-1) [] and(and(A,B),C) = and(A,and(B,C)).
% 0.79/1.17  0 (wt=-1) [] and(A,B) = and(B,A).
% 0.79/1.17  0 (wt=-1) [] xor(A,B) = or(and(A,not(B)),and(not(A),B)).
% 0.79/1.17  0 (wt=-1) [] xor(A,B) = xor(B,A).
% 0.79/1.17  0 (wt=-1) [] and_star(A,B) = not(or(not(A),not(B))).
% 0.79/1.17  0 (wt=-1) [] and_star(and_star(A,B),C) = and_star(A,and_star(B,C)).
% 0.79/1.17  0 (wt=-1) [] and_star(A,B) = and_star(B,A).
% 0.79/1.17  0 (wt=-1) [] not(truth) = falsehood.
% 0.79/1.17  0 (wt=-1) [] -(and_star(xor(truth,x),x) = falsehood).
% 0.79/1.17  end_of_list.
% 0.79/1.17  
% 0.79/1.17  Demodulators:
% 0.79/1.17  end_of_list.
% 0.79/1.17  
% 0.79/1.17  Passive:
% 0.79/1.17  end_of_list.
% 0.79/1.17  
% 0.79/1.17  Starting to process input.
% 0.79/1.17  
% 0.79/1.17  ** KEPT: 1 (wt=5) [] implies(truth,A) = A.
% 0.79/1.17  1 is a new demodulator.
% 0.79/1.17  
% 0.79/1.17  ** KEPT: 2 (wt=13) [] implies(implies(A,B),implies(implies(B,C),implies(A,C))) = truth.
% 0.79/1.17  2 is a new demodulator.
% 0.79/1.17  
% 0.79/1.17  ** KEPT: 3 (wt=11) [] implies(implies(A,B),B) = implies(implies(B,A),A).
% 0.79/1.17  clause forward subsumed: 0 (wt=11) [flip(3)] implies(implies(B,A),A) = implies(implies(A,B),B).
% 0.79/1.17  
% 0.79/1.17  ** KEPT: 4 (wt=11) [] implies(implies(not(A),not(B)),implies(B,A)) = truth.
% 0.79/1.17  4 is a new demodulator.
% 0.79/1.17  
% 0.79/1.17  ** KEPT: 5 (wt=8) [] or(A,B) = implies(not(A),B).
% 0.79/1.17  
% 0.79/1.17  ** KEPT: 6 (wt=8) [flip(5)] implies(not(A),B) = or(A,B).
% 0.79/1.17  clause forward subsumed: 0 (wt=8) [flip(6)] or(A,B) = implies(not(A),B).
% 0.79/1.17  
% 0.79/1.17  ** KEPT: 7 (wt=11) [] or(or(A,B),C) = or(A,or(B,C)).
% 0.79/1.17  7 is a new demodulator.
% 0.79/1.17  
% 0.79/1.17  ** KEPT: 8 (wt=7) [] or(A,B) = or(B,A).
% 0.79/1.17  clause forward subsumed: 0 (wt=7) [flip(8)] or(B,A) = or(A,B).
% 0.79/1.17  
% 0.79/1.17  ** KEPT: 9 (wt=10) [flip(1)] not(or(not(A),not(B))) = and(A,B).
% 0.79/1.17  9 is a new demodulator.
% 0.79/1.17  
% 0.79/1.17  ** KEPT: 10 (wt=11) [] and(and(A,B),C) = and(A,and(B,C)).
% 0.79/1.17  10 is a new demodulator.
% 0.79/1.17  
% 0.79/1.17  ** KEPT: 11 (wt=7) [] and(A,B) = and(B,A).
% 0.79/1.17  clause forward subsumed: 0 (wt=7) [flip(11)] and(B,A) = and(A,B).
% 0.79/1.17  
% 0.79/1.17  ** KEPT: 12 (wt=13) [] xor(A,B) = or(and(A,not(B)),and(not(A),B)).
% 0.79/1.17  
% 0.79/1.17  ** KEPT: 13 (wt=13) [flip(12)] or(and(A,not(B)),and(not(A),B)) = xor(A,B).
% 0.79/1.17  clause forward subsumed: 0 (wt=13) [flip(13)] xor(A,B) = or(and(A,not(B)),and(not(A),B)).
% 0.79/1.17  
% 0.79/1.17  ** KEPT: 14 (wt=7) [] xor(A,B) = xor(B,A).
% 0.79/1.17  clause forward subsumed: 0 (wt=7) [flip(14)] xor(B,A) = xor(A,B).
% 0.79/1.17  
% 0.79/1.17  ** KEPT: 15 (wt=7) [demod([9])] and_star(A,B) = and(A,B).
% 0.79/1.17  15 is a new demodulator.
% 0.79/1.17  clause forward subsumed: 0 (wt=11) [demod([15,15,10,15,15])] and(A,and(B,C)) = and(A,and(B,C)).
% 0.79/1.17  clause forward subsumed: 0 (wt=7) [demod([15,15])] and(A,B) = and(B,A).
% 0.79/1.17  
% 0.79/1.17  ** KEPT: 16 (wt=4) [] not(truth) = falsehood.
% 0.79/1.17  16 is a new demodulator.
% 0.79/1.17  
% 0.79/1.17  ** KEPT: 17 (wt=7) [demod([15])] -(and(xor(truth,x),x) = falsehood).
% 0.79/1.17  ---------------- PROOF FOUND ----------------
% 0.79/1.17  % SZS status Unsatisfiable
% 0.79/1.17  
% 0.79/1.17  
% 0.79/1.17  After processing input:
% 0.79/1.17  
% 0.79/1.17  Usable:
% 0.79/1.17  end_of_list.
% 0.79/1.17  
% 0.79/1.17  Sos:
% 0.79/1.17  16 (wt=4) [] not(truth) = falsehood.
% 0.79/1.17  1 (wt=5) [] implies(truth,A) = A.
% 0.79/1.17  8 (wt=7) [] or(A,B) = or(B,A).
% 0.79/1.17  11 (wt=7) [] and(A,B) = and(B,A).
% 0.79/1.17  14 (wt=7) [] xor(A,B) = xor(B,A).
% 0.79/1.17  15 (wt=7) [demod([9])] and_star(A,B) = and(A,B).
% 0.79/1.17  17 (wt=7) [demod([15])] -(and(xor(truth,x),x) = falsehood).
% 0.79/1.17  5 (wt=8) [] or(A,B) = implies(not(A),B).
% 0.79/1.17  6 (wt=8) [flip(5)] implies(not(A),B) = or(A,B).
% 0.79/1.17  9 (wt=10) [flip(1)] not(or(not(A),not(B))) = and(A,B).
% 0.79/1.17  3 (wt=11) [] implies(implies(A,B),B) = implies(implies(B,A),A).
% 0.79/1.17  4 (wt=11) [] implies(implies(not(A),not(B)),implies(B,A)) = truth.
% 0.79/1.17  7 (wt=11) [] or(or(A,B),C) = or(A,or(B,C)).
% 0.79/1.17  10 (wt=11) [] and(and(A,B),C) = and(A,and(B,C)).
% 0.79/1.17  2 (wt=13) [] implies(implies(A,B),implies(implies(B,C),implies(A,C))) = truth.
% 0.79/1.17  12 (wt=13) [] xor(A,B) = or(and(A,not(B)),and(not(A),B)).
% 0.79/1.17  13 (wt=13) [flip(12)] or(and(A,not(B)),and(not(A),B)) = xor(A,B).
% 0.79/1.17  end_of_list.
% 0.79/1.17  
% 0.79/1.17  Demodulators:
% 0.79/1.17  1 (wt=5) [] implies(truth,A) = A.
% 0.79/1.17  2 (wt=13) [] implies(implies(A,B),implies(implies(B,C),implies(A,C))) = truth.
% 0.79/1.17  4 (wt=11) [] implies(implies(not(A),not(B)),implies(B,A)) = truth.
% 0.79/1.17  7 (wt=11) [] or(or(A,B),C) = or(A,or(B,C)).
% 0.79/1.17  9 (wt=10) [flip(1)] not(or(not(A),not(B))) = and(A,B).
% 0.79/1.17  10 (wt=11) [] and(and(A,B),C) = and(A,and(B,C)).
% 0.79/1.17  15 (wt=7) [demod([9])] and_star(A,B) = and(A,B).
% 0.79/1.17  16 (wt=4) [] not(truth) = falsehood.
% 0.79/1.17  end_of_list.
% 0.79/1.17  
% 0.79/1.17  Passive:
% 0.79/1.17  end_of_list.
% 0.79/1.17  
% 0.79/1.17  UNIT CONFLICT from 371 and 369 at   0.03 seconds.
% 0.79/1.17  
% 0.79/1.17  ---------------- PROOF ----------------
% 0.79/1.17  % SZS output start Refutation
% See solution above
% 0.79/1.17  ------------ end of proof -------------
% 0.79/1.17  
% 0.79/1.17  
% 0.79/1.17  ------------- memory usage ------------
% 0.79/1.17  Memory dynamically allocated (tp_alloc): 976.
% 0.79/1.17    type (bytes each)        gets      frees     in use      avail      bytes
% 0.79/1.17  sym_ent (  96)               60          0         60          0      5.6 K
% 0.79/1.17  term (  16)               29516      22067       7449         39    144.8 K
% 0.79/1.17  gen_ptr (   8)            42519       9137      33382         58    261.2 K
% 0.79/1.17  context ( 808)            22993      22991          2          3      3.9 K
% 0.79/1.17  trail (  12)               2593       2593          0          6      0.1 K
% 0.79/1.17  bt_node (  68)             6784       6781          3         14      1.1 K
% 0.79/1.17  ac_position (285432)          0          0          0          0      0.0 K
% 0.79/1.17  ac_match_pos (14044)          0          0          0          0      0.0 K
% 0.79/1.17  ac_match_free_vars_pos (4020)
% 0.79/1.17                                0          0          0          0      0.0 K
% 0.79/1.17  discrim (  12)             7239       3431       3808        505     50.5 K
% 0.79/1.17  flat (  40)               58084      58084          0         59      2.3 K
% 0.79/1.17  discrim_pos (  12)         1545       1545          0          1      0.0 K
% 0.79/1.17  fpa_head (  12)            2453          0       2453          0     28.7 K
% 0.79/1.17  fpa_tree (  28)            1552       1552          0         19      0.5 K
% 0.79/1.17  fpa_pos (  36)              628        628          0          1      0.0 K
% 0.79/1.17  literal (  12)             1438       1067        371          1      4.4 K
% 0.79/1.17  clause (  24)              1438       1067        371          1      8.7 K
% 0.79/1.17  list (  12)                 316        260         56          4      0.7 K
% 0.79/1.17  list_pos (  20)            1843       1012        831         28     16.8 K
% 0.79/1.17  pair_index (   40)              2          0          2          0      0.1 K
% 0.79/1.17  
% 0.79/1.17  -------------- statistics -------------
% 0.79/1.17  Clauses input                 17
% 0.79/1.17    Usable input                   0
% 0.79/1.17    Sos input                     17
% 0.79/1.17    Demodulators input             0
% 0.79/1.17    Passive input                  0
% 0.79/1.17  
% 0.79/1.17  Processed BS (before search)  25
% 0.79/1.17  Forward subsumed BS            8
% 0.79/1.17  Kept BS                       17
% 0.79/1.17  New demodulators BS            8
% 0.79/1.17  Back demodulated BS            0
% 0.79/1.17  
% 0.79/1.17  Clauses or pairs given      1056
% 0.79/1.17  Clauses generated            922
% 0.79/1.17  Forward subsumed             568
% 0.79/1.17  Deleted by weight              0
% 0.79/1.17  Deleted by variable count      0
% 0.79/1.17  Kept                         354
% 0.79/1.17  New demodulators             249
% 0.79/1.17  Back demodulated             206
% 0.79/1.17  Ordered paramod prunes         0
% 0.79/1.17  Basic paramod prunes        1337
% 0.79/1.17  Prime paramod prunes          49
% 0.79/1.17  Semantic prunes                0
% 0.79/1.17  
% 0.79/1.17  Rewrite attmepts           12743
% 0.79/1.17  Rewrites                    1374
% 0.79/1.17  
% 0.79/1.17  FPA overloads                  0
% 0.79/1.17  FPA underloads                 0
% 0.79/1.17  
% 0.79/1.17  Usable size                    0
% 0.79/1.17  Sos size                     164
% 0.79/1.17  Demodulators size            133
% 0.79/1.17  Passive size                   0
% 0.79/1.17  Disabled size                206
% 0.79/1.17  
% 0.79/1.17  Proofs found                   1
% 0.79/1.17  
% 0.79/1.17  ----------- times (seconds) ----------- Sat Jul  2 19:31:46 2022
% 0.79/1.17  
% 0.79/1.17  user CPU time             0.03   (0 hr, 0 min, 0 sec)
% 0.79/1.17  system CPU time           0.03   (0 hr, 0 min, 0 sec)
% 0.79/1.17  wall-clock time           0      (0 hr, 0 min, 0 sec)
% 0.79/1.17  input time                0.00
% 0.79/1.17  paramodulation time       0.00
% 0.79/1.17  demodulation time         0.00
% 0.79/1.17  orient time               0.01
% 0.79/1.17  weigh time                0.00
% 0.79/1.17  forward subsume time      0.00
% 0.79/1.17  back demod find time      0.00
% 0.79/1.17  conflict time             0.00
% 0.79/1.17  LRPO time                 0.00
% 0.79/1.17  store clause time         0.01
% 0.79/1.17  disable clause time       0.00
% 0.79/1.17  prime paramod time        0.00
% 0.79/1.17  semantics time            0.00
% 0.79/1.17  
% 0.79/1.17  EQP interrupted
%------------------------------------------------------------------------------