TSTP Solution File: SEU125+1 by SPASS---3.9

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%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : SEU125+1 : TPTP v8.1.0. Released v3.3.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n025.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 14:34:07 EDT 2022

% Result   : Theorem 7.91s 8.14s
% Output   : Refutation 7.91s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   14
%            Number of leaves      :   11
% Syntax   : Number of clauses     :   33 (   8 unt;  14 nHn;  33 RR)
%            Number of literals    :   73 (   0 equ;  23 neg)
%            Maximal clause size   :    4 (   2 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    4 (   3 usr;   1 prp; 0-2 aty)
%            Number of functors    :   10 (  10 usr;   7 con; 0-3 aty)
%            Number of variables   :    0 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(3,axiom,
    subset(skc7,skc5),
    file('SEU125+1.p',unknown),
    [] ).

cnf(4,axiom,
    subset(skc6,skc5),
    file('SEU125+1.p',unknown),
    [] ).

cnf(9,axiom,
    ~ subset(set_union2(skc7,skc6),skc5),
    file('SEU125+1.p',unknown),
    [] ).

cnf(11,axiom,
    equal(set_union2(u,v),set_union2(v,u)),
    file('SEU125+1.p',unknown),
    [] ).

cnf(16,axiom,
    ( subset(u,v)
    | in(skf3(v,u),u) ),
    file('SEU125+1.p',unknown),
    [] ).

cnf(17,axiom,
    ( ~ in(skf3(u,v),u)
    | subset(w,u) ),
    file('SEU125+1.p',unknown),
    [] ).

cnf(19,axiom,
    ( ~ in(u,v)
    | ~ subset(v,w)
    | in(u,w) ),
    file('SEU125+1.p',unknown),
    [] ).

cnf(21,axiom,
    ( ~ in(u,v)
    | ~ equal(w,set_union2(x,v))
    | in(u,w) ),
    file('SEU125+1.p',unknown),
    [] ).

cnf(22,axiom,
    ( ~ in(u,v)
    | ~ equal(v,set_union2(w,x))
    | in(u,x)
    | in(u,w) ),
    file('SEU125+1.p',unknown),
    [] ).

cnf(23,axiom,
    ( ~ in(skf2(u,v,w),w)
    | ~ in(skf2(u,v,w),v)
    | equal(w,set_union2(v,u)) ),
    file('SEU125+1.p',unknown),
    [] ).

cnf(25,axiom,
    ( equal(u,set_union2(v,w))
    | in(skf2(w,v,u),w)
    | in(skf2(w,v,u),v)
    | in(skf2(w,v,u),u) ),
    file('SEU125+1.p',unknown),
    [] ).

cnf(26,plain,
    ~ subset(set_union2(skc6,skc7),skc5),
    inference(rew,[status(thm),theory(equality)],[11,9]),
    [iquote('0:Rew:11.0,9.0')] ).

cnf(27,plain,
    ( ~ in(u,skc6)
    | in(u,skc5) ),
    inference(res,[status(thm),theory(equality)],[4,19]),
    [iquote('0:Res:4.0,19.0')] ).

cnf(28,plain,
    ( ~ in(u,skc7)
    | in(u,skc5) ),
    inference(res,[status(thm),theory(equality)],[3,19]),
    [iquote('0:Res:3.0,19.0')] ).

cnf(30,plain,
    ~ in(skf3(skc5,u),skc5),
    inference(res,[status(thm),theory(equality)],[17,26]),
    [iquote('0:Res:17.1,26.0')] ).

cnf(92,plain,
    ( ~ in(u,v)
    | in(u,set_union2(w,v)) ),
    inference(eqr,[status(thm),theory(equality)],[21]),
    [iquote('0:EqR:21.1')] ).

cnf(126,plain,
    ( ~ in(skf3(set_union2(u,v),w),v)
    | subset(x,set_union2(u,v)) ),
    inference(res,[status(thm),theory(equality)],[92,17]),
    [iquote('0:Res:92.1,17.0')] ).

cnf(136,plain,
    ( ~ in(u,set_union2(v,w))
    | in(u,w)
    | in(u,v) ),
    inference(eqr,[status(thm),theory(equality)],[22]),
    [iquote('0:EqR:22.1')] ).

cnf(215,plain,
    ( equal(set_union2(u,v),u)
    | in(skf2(v,u,u),v)
    | in(skf2(v,u,u),u) ),
    inference(fac,[status(thm)],[25]),
    [iquote('0:Fac:25.2,25.3')] ).

cnf(321,plain,
    ( subset(set_union2(u,v),w)
    | in(skf3(w,set_union2(u,v)),v)
    | in(skf3(w,set_union2(u,v)),u) ),
    inference(res,[status(thm),theory(equality)],[16,136]),
    [iquote('0:Res:16.1,136.0')] ).

cnf(603,plain,
    ( ~ in(skf2(u,v,v),v)
    | equal(set_union2(v,u),v)
    | in(skf2(u,v,v),u)
    | equal(set_union2(v,u),v) ),
    inference(res,[status(thm),theory(equality)],[215,23]),
    [iquote('0:Res:215.2,23.0')] ).

cnf(609,plain,
    ( ~ in(skf2(u,v,v),v)
    | in(skf2(u,v,v),u)
    | equal(set_union2(v,u),v) ),
    inference(obv,[status(thm),theory(equality)],[603]),
    [iquote('0:Obv:603.1')] ).

cnf(610,plain,
    ( in(skf2(u,v,v),u)
    | equal(set_union2(v,u),v) ),
    inference(mrr,[status(thm)],[609,215]),
    [iquote('0:MRR:609.0,215.2')] ).

cnf(1413,plain,
    ( equal(set_union2(u,skc7),u)
    | in(skf2(skc7,u,u),skc5) ),
    inference(res,[status(thm),theory(equality)],[610,28]),
    [iquote('0:Res:610.0,28.0')] ).

cnf(2265,plain,
    ( ~ in(skf2(skc7,skc5,skc5),skc5)
    | equal(set_union2(skc5,skc7),skc5)
    | equal(set_union2(skc5,skc7),skc5) ),
    inference(res,[status(thm),theory(equality)],[1413,23]),
    [iquote('0:Res:1413.1,23.0')] ).

cnf(2267,plain,
    ( ~ in(skf2(skc7,skc5,skc5),skc5)
    | equal(set_union2(skc5,skc7),skc5) ),
    inference(obv,[status(thm),theory(equality)],[2265]),
    [iquote('0:Obv:2265.1')] ).

cnf(2268,plain,
    equal(set_union2(skc5,skc7),skc5),
    inference(mrr,[status(thm)],[2267,1413]),
    [iquote('0:MRR:2267.0,1413.1')] ).

cnf(2756,plain,
    ( ~ in(skf3(skc5,u),skc7)
    | subset(v,set_union2(skc5,skc7)) ),
    inference(spl,[status(thm),theory(equality)],[2268,126]),
    [iquote('0:SpL:2268.0,126.0')] ).

cnf(2775,plain,
    ( ~ in(skf3(skc5,u),skc7)
    | subset(v,skc5) ),
    inference(rew,[status(thm),theory(equality)],[2268,2756]),
    [iquote('0:Rew:2268.0,2756.1')] ).

cnf(7615,plain,
    ( subset(set_union2(u,skc7),skc5)
    | in(skf3(skc5,set_union2(u,skc7)),u)
    | subset(v,skc5) ),
    inference(res,[status(thm),theory(equality)],[321,2775]),
    [iquote('0:Res:321.1,2775.0')] ).

cnf(7653,plain,
    ( subset(set_union2(u,skc7),skc5)
    | in(skf3(skc5,set_union2(u,skc7)),u) ),
    inference(con,[status(thm)],[7615]),
    [iquote('0:Con:7615.2')] ).

cnf(12808,plain,
    ( subset(set_union2(skc6,skc7),skc5)
    | in(skf3(skc5,set_union2(skc6,skc7)),skc5) ),
    inference(res,[status(thm),theory(equality)],[7653,27]),
    [iquote('0:Res:7653.1,27.0')] ).

cnf(12827,plain,
    $false,
    inference(mrr,[status(thm)],[12808,26,30]),
    [iquote('0:MRR:12808.0,12808.1,26.0,30.0')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.11  % Problem  : SEU125+1 : TPTP v8.1.0. Released v3.3.0.
% 0.03/0.11  % Command  : run_spass %d %s
% 0.11/0.32  % Computer : n025.cluster.edu
% 0.11/0.32  % Model    : x86_64 x86_64
% 0.11/0.32  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.32  % Memory   : 8042.1875MB
% 0.11/0.32  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.11/0.33  % CPULimit : 300
% 0.11/0.33  % WCLimit  : 600
% 0.11/0.33  % DateTime : Sun Jun 19 19:30:44 EDT 2022
% 0.11/0.33  % CPUTime  : 
% 7.91/8.14  
% 7.91/8.14  SPASS V 3.9 
% 7.91/8.14  SPASS beiseite: Proof found.
% 7.91/8.14  % SZS status Theorem
% 7.91/8.14  Problem: /export/starexec/sandbox/benchmark/theBenchmark.p 
% 7.91/8.14  SPASS derived 10816 clauses, backtracked 1556 clauses, performed 5 splits and kept 5846 clauses.
% 7.91/8.14  SPASS allocated 106954 KBytes.
% 7.91/8.14  SPASS spent	0:00:07.69 on the problem.
% 7.91/8.14  		0:00:00.04 for the input.
% 7.91/8.14  		0:00:00.04 for the FLOTTER CNF translation.
% 7.91/8.14  		0:00:00.12 for inferences.
% 7.91/8.14  		0:00:00.40 for the backtracking.
% 7.91/8.14  		0:00:07.02 for the reduction.
% 7.91/8.14  
% 7.91/8.14  
% 7.91/8.14  Here is a proof with depth 7, length 33 :
% 7.91/8.14  % SZS output start Refutation
% See solution above
% 7.91/8.14  Formulae used in the proof : t8_xboole_1 commutativity_k2_xboole_0 d3_tarski d2_xboole_0
% 7.91/8.14  
%------------------------------------------------------------------------------