TSTP Solution File: SWC026+1 by SPASS---3.9

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%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : SWC026+1 : TPTP v8.1.0. Released v2.4.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n024.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 : Tue Jul 19 22:01:11 EDT 2022

% Result   : Theorem 0.67s 0.86s
% Output   : Refutation 0.67s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   14
%            Number of leaves      :    7
% Syntax   : Number of clauses     :   25 (  11 unt;   4 nHn;  25 RR)
%            Number of literals    :   51 (   0 equ;  28 neg)
%            Maximal clause size   :    7 (   2 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    4 (   3 usr;   1 prp; 0-2 aty)
%            Number of functors    :    7 (   7 usr;   5 con; 0-1 aty)
%            Number of variables   :    0 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(2,axiom,
    ssList(skc4),
    file('SWC026+1.p',unknown),
    [] ).

cnf(58,axiom,
    ( skP0(u,v)
    | equal(nil,v) ),
    file('SWC026+1.p',unknown),
    [] ).

cnf(67,axiom,
    ( ~ equal(nil,skc4)
    | equal(nil,skc5) ),
    file('SWC026+1.p',unknown),
    [] ).

cnf(68,axiom,
    ( ~ equal(nil,skc5)
    | equal(nil,skc4) ),
    file('SWC026+1.p',unknown),
    [] ).

cnf(69,axiom,
    ( ~ equal(nil,u)
    | skP0(u,v) ),
    file('SWC026+1.p',unknown),
    [] ).

cnf(79,axiom,
    ( ~ skP0(skc5,skc4)
    | ~ skP0(skc4,skc5) ),
    file('SWC026+1.p',unknown),
    [] ).

cnf(185,axiom,
    ( ~ ssList(u)
    | ~ ssList(v)
    | ~ equal(tl(u),tl(v))
    | ~ equal(hd(u),hd(v))
    | equal(u,v)
    | equal(nil,v)
    | equal(nil,u) ),
    file('SWC026+1.p',unknown),
    [] ).

cnf(282,plain,
    ( ~ ssList(u)
    | ~ equal(tl(skc4),tl(u))
    | ~ equal(hd(skc4),hd(u))
    | equal(nil,u)
    | equal(skc4,u)
    | equal(nil,skc4) ),
    inference(res,[status(thm),theory(equality)],[2,185]),
    [iquote('0:Res:2.0,185.1')] ).

cnf(563,plain,
    equal(nil,skc4),
    inference(spt,[spt(split,[position(s1)])],[282]),
    [iquote('1:Spt:282.5')] ).

cnf(588,plain,
    ( ~ equal(skc4,u)
    | skP0(u,v) ),
    inference(rew,[status(thm),theory(equality)],[563,69]),
    [iquote('1:Rew:563.0,69.0')] ).

cnf(613,plain,
    ( ~ equal(nil,skc4)
    | equal(skc5,skc4) ),
    inference(rew,[status(thm),theory(equality)],[563,67]),
    [iquote('1:Rew:563.0,67.1')] ).

cnf(691,plain,
    ( ~ equal(skc4,skc4)
    | equal(skc5,skc4) ),
    inference(rew,[status(thm),theory(equality)],[563,613]),
    [iquote('1:Rew:563.0,613.0')] ).

cnf(692,plain,
    equal(skc5,skc4),
    inference(obv,[status(thm),theory(equality)],[691]),
    [iquote('1:Obv:691.0')] ).

cnf(787,plain,
    ( ~ skP0(skc4,skc4)
    | ~ skP0(skc4,skc5) ),
    inference(rew,[status(thm),theory(equality)],[692,79]),
    [iquote('1:Rew:692.0,79.0')] ).

cnf(878,plain,
    ( ~ skP0(skc4,skc4)
    | ~ skP0(skc4,skc4) ),
    inference(rew,[status(thm),theory(equality)],[692,787]),
    [iquote('1:Rew:692.0,787.1')] ).

cnf(879,plain,
    ~ skP0(skc4,skc4),
    inference(obv,[status(thm),theory(equality)],[878]),
    [iquote('1:Obv:878.0')] ).

cnf(990,plain,
    ~ equal(skc4,skc4),
    inference(res,[status(thm),theory(equality)],[588,879]),
    [iquote('1:Res:588.1,879.0')] ).

cnf(991,plain,
    $false,
    inference(obv,[status(thm),theory(equality)],[990]),
    [iquote('1:Obv:990.0')] ).

cnf(992,plain,
    ~ equal(nil,skc4),
    inference(spt,[spt(split,[position(sa)])],[991,563]),
    [iquote('1:Spt:991.0,282.5,563.0')] ).

cnf(993,plain,
    ( ~ ssList(u)
    | ~ equal(tl(skc4),tl(u))
    | ~ equal(hd(skc4),hd(u))
    | equal(nil,u)
    | equal(skc4,u) ),
    inference(spt,[spt(split,[position(s2)])],[282]),
    [iquote('1:Spt:991.0,282.0,282.1,282.2,282.3,282.4')] ).

cnf(999,plain,
    ~ equal(nil,skc5),
    inference(mrr,[status(thm)],[68,992]),
    [iquote('1:MRR:68.1,992.0')] ).

cnf(1061,plain,
    ( ~ skP0(skc4,skc5)
    | equal(nil,skc4) ),
    inference(res,[status(thm),theory(equality)],[58,79]),
    [iquote('0:Res:58.0,79.0')] ).

cnf(1062,plain,
    ~ skP0(skc4,skc5),
    inference(mrr,[status(thm)],[1061,992]),
    [iquote('1:MRR:1061.1,992.0')] ).

cnf(1064,plain,
    equal(nil,skc5),
    inference(res,[status(thm),theory(equality)],[58,1062]),
    [iquote('1:Res:58.0,1062.0')] ).

cnf(1065,plain,
    $false,
    inference(mrr,[status(thm)],[1064,999]),
    [iquote('1:MRR:1064.0,999.0')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : SWC026+1 : TPTP v8.1.0. Released v2.4.0.
% 0.03/0.13  % Command  : run_spass %d %s
% 0.13/0.34  % Computer : n024.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 : Sat Jun 11 23:44:04 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.67/0.86  
% 0.67/0.86  SPASS V 3.9 
% 0.67/0.86  SPASS beiseite: Proof found.
% 0.67/0.86  % SZS status Theorem
% 0.67/0.86  Problem: /export/starexec/sandbox/benchmark/theBenchmark.p 
% 0.67/0.86  SPASS derived 695 clauses, backtracked 332 clauses, performed 17 splits and kept 964 clauses.
% 0.67/0.86  SPASS allocated 98821 KBytes.
% 0.67/0.86  SPASS spent	0:00:00.50 on the problem.
% 0.67/0.86  		0:00:00.04 for the input.
% 0.67/0.86  		0:00:00.07 for the FLOTTER CNF translation.
% 0.67/0.86  		0:00:00.00 for inferences.
% 0.67/0.86  		0:00:00.00 for the backtracking.
% 0.67/0.86  		0:00:00.20 for the reduction.
% 0.67/0.86  
% 0.67/0.86  
% 0.67/0.86  Here is a proof with depth 2, length 25 :
% 0.67/0.86  % SZS output start Refutation
% See solution above
% 0.67/0.86  Formulae used in the proof : co1 ax77
% 0.67/0.86  
%------------------------------------------------------------------------------