TSTP Solution File: SWC020+1 by SPASS---3.9

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%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : SWC020+1 : TPTP v8.1.0. Released v2.4.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n022.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 22:01:08 EDT 2022

% Result   : Theorem 0.85s 1.07s
% Output   : Refutation 0.85s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   14
%            Number of leaves      :   12
% Syntax   : Number of clauses     :   48 (  24 unt;   7 nHn;  48 RR)
%            Number of literals    :   95 (   0 equ;  53 neg)
%            Maximal clause size   :    7 (   1 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    6 (   5 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(1,axiom,
    ssList(skc5),
    file('SWC020+1.p',unknown),
    [] ).

cnf(2,axiom,
    ssList(skc4),
    file('SWC020+1.p',unknown),
    [] ).

cnf(58,axiom,
    ( skP0(u,v)
    | equal(nil,v) ),
    file('SWC020+1.p',unknown),
    [] ).

cnf(59,axiom,
    ( skP0(u,v)
    | equal(nil,u) ),
    file('SWC020+1.p',unknown),
    [] ).

cnf(61,axiom,
    ( ~ ssList(u)
    | frontsegP(u,u) ),
    file('SWC020+1.p',unknown),
    [] ).

cnf(62,axiom,
    ( ~ ssList(u)
    | frontsegP(u,nil) ),
    file('SWC020+1.p',unknown),
    [] ).

cnf(68,axiom,
    ( ~ skP0(skc4,skc5)
    | neq(skc4,nil) ),
    file('SWC020+1.p',unknown),
    [] ).

cnf(69,axiom,
    ( ~ skP0(skc4,skc5)
    | frontsegP(skc5,skc4) ),
    file('SWC020+1.p',unknown),
    [] ).

cnf(79,axiom,
    ( ~ equal(skc4,nil)
    | ~ equal(skc5,nil) ),
    file('SWC020+1.p',unknown),
    [] ).

cnf(91,axiom,
    ( ~ ssList(u)
    | ~ frontsegP(nil,u)
    | equal(nil,u) ),
    file('SWC020+1.p',unknown),
    [] ).

cnf(126,axiom,
    ( ~ ssList(u)
    | ~ neq(u,nil)
    | ~ frontsegP(skc4,u)
    | ~ frontsegP(skc5,u) ),
    file('SWC020+1.p',unknown),
    [] ).

cnf(186,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('SWC020+1.p',unknown),
    [] ).

cnf(243,plain,
    ( ~ neq(skc4,nil)
    | ~ frontsegP(skc5,skc4)
    | ~ frontsegP(skc4,skc4) ),
    inference(res,[status(thm),theory(equality)],[2,126]),
    [iquote('0:Res:2.0,126.0')] ).

cnf(268,plain,
    ( ~ frontsegP(nil,skc4)
    | equal(skc4,nil) ),
    inference(res,[status(thm),theory(equality)],[2,91]),
    [iquote('0:Res:2.0,91.0')] ).

cnf(278,plain,
    frontsegP(skc4,skc4),
    inference(res,[status(thm),theory(equality)],[2,61]),
    [iquote('0:Res:2.0,61.0')] ).

cnf(284,plain,
    ( ~ ssList(u)
    | ~ equal(tl(skc4),tl(u))
    | ~ equal(hd(skc4),hd(u))
    | equal(nil,u)
    | equal(skc4,u)
    | equal(skc4,nil) ),
    inference(res,[status(thm),theory(equality)],[2,186]),
    [iquote('0:Res:2.0,186.1')] ).

cnf(451,plain,
    frontsegP(skc5,nil),
    inference(res,[status(thm),theory(equality)],[1,62]),
    [iquote('0:Res:1.0,62.0')] ).

cnf(456,plain,
    ( ~ ssList(u)
    | ~ equal(tl(skc5),tl(u))
    | ~ equal(hd(skc5),hd(u))
    | equal(nil,u)
    | equal(skc5,u)
    | equal(skc5,nil) ),
    inference(res,[status(thm),theory(equality)],[1,186]),
    [iquote('0:Res:1.0,186.1')] ).

cnf(544,plain,
    ( ~ frontsegP(skc5,skc4)
    | ~ neq(skc4,nil) ),
    inference(mrr,[status(thm)],[243,278]),
    [iquote('0:MRR:243.2,278.0')] ).

cnf(554,plain,
    equal(skc4,nil),
    inference(spt,[spt(split,[position(s1)])],[284]),
    [iquote('1:Spt:284.5')] ).

cnf(557,plain,
    ( ~ skP0(nil,skc5)
    | neq(skc4,nil) ),
    inference(rew,[status(thm),theory(equality)],[554,68]),
    [iquote('1:Rew:554.0,68.0')] ).

cnf(559,plain,
    ( ~ frontsegP(skc5,nil)
    | ~ neq(skc4,nil) ),
    inference(rew,[status(thm),theory(equality)],[554,544]),
    [iquote('1:Rew:554.0,544.0')] ).

cnf(564,plain,
    ( ~ equal(nil,nil)
    | ~ equal(skc5,nil) ),
    inference(rew,[status(thm),theory(equality)],[554,79]),
    [iquote('1:Rew:554.0,79.0')] ).

cnf(711,plain,
    ( ~ skP0(nil,skc5)
    | neq(nil,nil) ),
    inference(rew,[status(thm),theory(equality)],[554,557]),
    [iquote('1:Rew:554.0,557.1')] ).

cnf(723,plain,
    ( ~ frontsegP(skc5,nil)
    | ~ neq(nil,nil) ),
    inference(rew,[status(thm),theory(equality)],[554,559]),
    [iquote('1:Rew:554.0,559.1')] ).

cnf(724,plain,
    ~ neq(nil,nil),
    inference(mrr,[status(thm)],[723,451]),
    [iquote('1:MRR:723.0,451.0')] ).

cnf(725,plain,
    ~ skP0(nil,skc5),
    inference(mrr,[status(thm)],[711,724]),
    [iquote('1:MRR:711.1,724.0')] ).

cnf(726,plain,
    ~ equal(skc5,nil),
    inference(obv,[status(thm),theory(equality)],[564]),
    [iquote('1:Obv:564.0')] ).

cnf(851,plain,
    equal(skc5,nil),
    inference(res,[status(thm),theory(equality)],[58,725]),
    [iquote('1:Res:58.0,725.0')] ).

cnf(852,plain,
    $false,
    inference(mrr,[status(thm)],[851,726]),
    [iquote('1:MRR:851.0,726.0')] ).

cnf(853,plain,
    ~ equal(skc4,nil),
    inference(spt,[spt(split,[position(sa)])],[852,554]),
    [iquote('1:Spt:852.0,284.5,554.0')] ).

cnf(854,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)])],[284]),
    [iquote('1:Spt:852.0,284.0,284.1,284.2,284.3,284.4')] ).

cnf(859,plain,
    ~ frontsegP(nil,skc4),
    inference(mrr,[status(thm)],[268,853]),
    [iquote('1:MRR:268.1,853.0')] ).

cnf(869,plain,
    equal(skc5,nil),
    inference(spt,[spt(split,[position(s2s1)])],[456]),
    [iquote('2:Spt:456.5')] ).

cnf(1012,plain,
    ( ~ skP0(skc4,nil)
    | frontsegP(skc5,skc4) ),
    inference(rew,[status(thm),theory(equality)],[869,69]),
    [iquote('2:Rew:869.0,69.0')] ).

cnf(1033,plain,
    ( ~ skP0(skc4,nil)
    | frontsegP(nil,skc4) ),
    inference(rew,[status(thm),theory(equality)],[869,1012]),
    [iquote('2:Rew:869.0,1012.1')] ).

cnf(1034,plain,
    ~ skP0(skc4,nil),
    inference(mrr,[status(thm)],[1033,859]),
    [iquote('2:MRR:1033.1,859.0')] ).

cnf(1137,plain,
    equal(skc4,nil),
    inference(res,[status(thm),theory(equality)],[59,1034]),
    [iquote('2:Res:59.0,1034.0')] ).

cnf(1138,plain,
    $false,
    inference(mrr,[status(thm)],[1137,853]),
    [iquote('2:MRR:1137.0,853.0')] ).

cnf(1139,plain,
    ~ equal(skc5,nil),
    inference(spt,[spt(split,[position(s2sa)])],[1138,869]),
    [iquote('2:Spt:1138.0,456.5,869.0')] ).

cnf(1140,plain,
    ( ~ ssList(u)
    | ~ equal(tl(skc5),tl(u))
    | ~ equal(hd(skc5),hd(u))
    | equal(nil,u)
    | equal(skc5,u) ),
    inference(spt,[spt(split,[position(s2s2)])],[456]),
    [iquote('2:Spt:1138.0,456.0,456.1,456.2,456.3,456.4')] ).

cnf(1177,plain,
    ~ skP0(skc4,skc5),
    inference(spt,[spt(split,[position(s2s2s1)])],[69]),
    [iquote('3:Spt:69.0')] ).

cnf(1179,plain,
    equal(skc4,nil),
    inference(res,[status(thm),theory(equality)],[59,1177]),
    [iquote('3:Res:59.0,1177.0')] ).

cnf(1181,plain,
    $false,
    inference(mrr,[status(thm)],[1179,853]),
    [iquote('3:MRR:1179.0,853.0')] ).

cnf(1182,plain,
    skP0(skc4,skc5),
    inference(spt,[spt(split,[position(s2s2sa)])],[1181,1177]),
    [iquote('3:Spt:1181.0,69.0,1177.0')] ).

cnf(1183,plain,
    frontsegP(skc5,skc4),
    inference(spt,[spt(split,[position(s2s2s2)])],[69]),
    [iquote('3:Spt:1181.0,69.1')] ).

cnf(1184,plain,
    ~ neq(skc4,nil),
    inference(mrr,[status(thm)],[544,1183]),
    [iquote('3:MRR:544.0,1183.0')] ).

cnf(1185,plain,
    $false,
    inference(mrr,[status(thm)],[68,1182,1184]),
    [iquote('3:MRR:68.0,68.1,1182.0,1184.0')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.09  % Problem  : SWC020+1 : TPTP v8.1.0. Released v2.4.0.
% 0.04/0.09  % Command  : run_spass %d %s
% 0.09/0.29  % Computer : n022.cluster.edu
% 0.09/0.29  % Model    : x86_64 x86_64
% 0.09/0.29  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.29  % Memory   : 8042.1875MB
% 0.09/0.29  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.09/0.29  % CPULimit : 300
% 0.09/0.29  % WCLimit  : 600
% 0.09/0.29  % DateTime : Sun Jun 12 18:47:48 EDT 2022
% 0.09/0.29  % CPUTime  : 
% 0.85/1.07  
% 0.85/1.07  SPASS V 3.9 
% 0.85/1.07  SPASS beiseite: Proof found.
% 0.85/1.07  % SZS status Theorem
% 0.85/1.07  Problem: /export/starexec/sandbox/benchmark/theBenchmark.p 
% 0.85/1.07  SPASS derived 740 clauses, backtracked 409 clauses, performed 27 splits and kept 1162 clauses.
% 0.85/1.07  SPASS allocated 98946 KBytes.
% 0.85/1.07  SPASS spent	0:00:00.76 on the problem.
% 0.85/1.07  		0:00:00.03 for the input.
% 0.85/1.07  		0:00:00.06 for the FLOTTER CNF translation.
% 0.85/1.07  		0:00:00.00 for inferences.
% 0.85/1.07  		0:00:00.01 for the backtracking.
% 0.85/1.07  		0:00:00.46 for the reduction.
% 0.85/1.07  
% 0.85/1.07  
% 0.85/1.07  Here is a proof with depth 2, length 48 :
% 0.85/1.07  % SZS output start Refutation
% See solution above
% 0.85/1.07  Formulae used in the proof : co1 ax42 ax45 ax46 ax77
% 0.85/1.07  
%------------------------------------------------------------------------------