TSTP Solution File: SET063+4 by SPASS---3.9

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%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : SET063+4 : TPTP v8.1.0. Released v2.2.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n010.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 05:23:23 EDT 2022

% Result   : Theorem 0.21s 0.50s
% Output   : Refutation 0.21s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    3
%            Number of leaves      :    5
% Syntax   : Number of clauses     :   11 (   6 unt;   2 nHn;  11 RR)
%            Number of literals    :   17 (   0 equ;   8 neg)
%            Maximal clause size   :    3 (   1 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    4 (   3 usr;   1 prp; 0-2 aty)
%            Number of functors    :    7 (   7 usr;   5 con; 0-2 aty)
%            Number of variables   :    0 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,axiom,
    ~ member(u,empty_set),
    file('SET063+4.p',unknown),
    [] ).

cnf(3,axiom,
    ~ equal_set(intersection(skc1,empty_set),empty_set),
    file('SET063+4.p',unknown),
    [] ).

cnf(7,axiom,
    ( subset(u,v)
    | member(skf3(v,u),u) ),
    file('SET063+4.p',unknown),
    [] ).

cnf(14,axiom,
    ( ~ member(u,intersection(v,w))
    | member(u,w) ),
    file('SET063+4.p',unknown),
    [] ).

cnf(24,axiom,
    ( ~ subset(u,v)
    | ~ subset(v,u)
    | equal_set(v,u) ),
    file('SET063+4.p',unknown),
    [] ).

cnf(31,plain,
    ( ~ subset(empty_set,intersection(skc1,empty_set))
    | ~ subset(intersection(skc1,empty_set),empty_set) ),
    inference(res,[status(thm),theory(equality)],[24,3]),
    [iquote('0:Res:24.2,3.0')] ).

cnf(34,plain,
    subset(empty_set,u),
    inference(res,[status(thm),theory(equality)],[7,1]),
    [iquote('0:Res:7.1,1.0')] ).

cnf(37,plain,
    ~ subset(intersection(skc1,empty_set),empty_set),
    inference(mrr,[status(thm)],[31,34]),
    [iquote('0:MRR:31.0,34.0')] ).

cnf(54,plain,
    ( subset(intersection(u,v),w)
    | member(skf3(w,intersection(u,v)),v) ),
    inference(res,[status(thm),theory(equality)],[7,14]),
    [iquote('0:Res:7.1,14.0')] ).

cnf(495,plain,
    subset(intersection(u,empty_set),v),
    inference(res,[status(thm),theory(equality)],[54,1]),
    [iquote('0:Res:54.1,1.0')] ).

cnf(514,plain,
    $false,
    inference(unc,[status(thm)],[495,37]),
    [iquote('0:UnC:495.0,37.0')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : SET063+4 : TPTP v8.1.0. Released v2.2.0.
% 0.07/0.13  % Command  : run_spass %d %s
% 0.13/0.34  % Computer : n010.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 : Sun Jul 10 09:56:00 EDT 2022
% 0.13/0.35  % CPUTime  : 
% 0.21/0.50  
% 0.21/0.50  SPASS V 3.9 
% 0.21/0.50  SPASS beiseite: Proof found.
% 0.21/0.50  % SZS status Theorem
% 0.21/0.50  Problem: /export/starexec/sandbox2/benchmark/theBenchmark.p 
% 0.21/0.50  SPASS derived 460 clauses, backtracked 0 clauses, performed 0 splits and kept 345 clauses.
% 0.21/0.50  SPASS allocated 85536 KBytes.
% 0.21/0.50  SPASS spent	0:00:00.14 on the problem.
% 0.21/0.50  		0:00:00.03 for the input.
% 0.21/0.50  		0:00:00.04 for the FLOTTER CNF translation.
% 0.21/0.50  		0:00:00.01 for inferences.
% 0.21/0.50  		0:00:00.00 for the backtracking.
% 0.21/0.50  		0:00:00.04 for the reduction.
% 0.21/0.50  
% 0.21/0.50  
% 0.21/0.50  Here is a proof with depth 2, length 11 :
% 0.21/0.50  % SZS output start Refutation
% See solution above
% 0.21/0.50  Formulae used in the proof : empty_set thI17 subset intersection equal_set
% 0.21/0.50  
%------------------------------------------------------------------------------