TSTP Solution File: SYN078+1 by SPASS---3.9

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%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : SYN078+1 : TPTP v8.1.0. Released v2.0.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n028.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 : Thu Jul 21 12:18:25 EDT 2022

% Result   : Theorem 0.18s 0.42s
% Output   : Refutation 0.18s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    7
%            Number of leaves      :    5
% Syntax   : Number of clauses     :   18 (   9 unt;   1 nHn;  18 RR)
%            Number of literals    :   31 (   0 equ;  13 neg)
%            Maximal clause size   :    5 (   1 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    3 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :    7 (   7 usr;   6 con; 0-1 aty)
%            Number of variables   :    0 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,axiom,
    big_p(skc5),
    file('SYN078+1.p',unknown),
    [] ).

cnf(2,axiom,
    big_p(skc4),
    file('SYN078+1.p',unknown),
    [] ).

cnf(3,axiom,
    ~ big_p(skc3),
    file('SYN078+1.p',unknown),
    [] ).

cnf(4,axiom,
    ( ~ big_p(f(skc5))
    | equal(f(skc4),skc3) ),
    file('SYN078+1.p',unknown),
    [] ).

cnf(5,axiom,
    ( ~ big_p(u)
    | ~ big_p(v)
    | ~ equal(w,f(v))
    | big_p(w)
    | big_p(f(u)) ),
    file('SYN078+1.p',unknown),
    [] ).

cnf(6,plain,
    ( ~ big_p(u)
    | ~ equal(v,f(u))
    | big_p(v) ),
    inference(spt,[spt(split,[position(s1)])],[5]),
    [iquote('1:Spt:5.1,5.2,5.3')] ).

cnf(7,plain,
    ( ~ big_p(u)
    | big_p(f(u)) ),
    inference(eqr,[status(thm),theory(equality)],[6]),
    [iquote('1:EqR:6.1')] ).

cnf(8,plain,
    ( ~ big_p(skc5)
    | equal(f(skc4),skc3) ),
    inference(res,[status(thm),theory(equality)],[7,4]),
    [iquote('1:Res:7.1,4.0')] ).

cnf(9,plain,
    equal(f(skc4),skc3),
    inference(ssi,[status(thm)],[8,1]),
    [iquote('1:SSi:8.0,1.0')] ).

cnf(10,plain,
    ( ~ big_p(skc4)
    | big_p(skc3) ),
    inference(spr,[status(thm),theory(equality)],[9,7]),
    [iquote('1:SpR:9.0,7.1')] ).

cnf(13,plain,
    big_p(skc3),
    inference(ssi,[status(thm)],[10,2]),
    [iquote('1:SSi:10.0,2.0')] ).

cnf(14,plain,
    $false,
    inference(mrr,[status(thm)],[13,3]),
    [iquote('1:MRR:13.0,3.0')] ).

cnf(16,plain,
    ( ~ big_p(u)
    | big_p(f(u)) ),
    inference(spt,[spt(split,[position(s2)])],[5]),
    [iquote('1:Spt:14.0,5.0,5.4')] ).

cnf(17,plain,
    ( ~ big_p(skc5)
    | equal(f(skc4),skc3) ),
    inference(res,[status(thm),theory(equality)],[16,4]),
    [iquote('1:Res:16.1,4.0')] ).

cnf(18,plain,
    equal(f(skc4),skc3),
    inference(ssi,[status(thm)],[17,1]),
    [iquote('1:SSi:17.0,1.0')] ).

cnf(19,plain,
    ( ~ big_p(skc4)
    | big_p(skc3) ),
    inference(spr,[status(thm),theory(equality)],[18,16]),
    [iquote('1:SpR:18.0,16.1')] ).

cnf(21,plain,
    big_p(skc3),
    inference(ssi,[status(thm)],[19,2]),
    [iquote('1:SSi:19.0,2.0')] ).

cnf(22,plain,
    $false,
    inference(mrr,[status(thm)],[21,3]),
    [iquote('1:MRR:21.0,3.0')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : SYN078+1 : TPTP v8.1.0. Released v2.0.0.
% 0.03/0.12  % Command  : run_spass %d %s
% 0.12/0.33  % Computer : n028.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 600
% 0.12/0.33  % DateTime : Mon Jul 11 12:21:13 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 0.18/0.42  
% 0.18/0.42  SPASS V 3.9 
% 0.18/0.42  SPASS beiseite: Proof found.
% 0.18/0.42  % SZS status Theorem
% 0.18/0.42  Problem: /export/starexec/sandbox/benchmark/theBenchmark.p 
% 0.18/0.42  SPASS derived 9 clauses, backtracked 2 clauses, performed 1 splits and kept 14 clauses.
% 0.18/0.42  SPASS allocated 97568 KBytes.
% 0.18/0.42  SPASS spent	0:00:00.08 on the problem.
% 0.18/0.42  		0:00:00.03 for the input.
% 0.18/0.42  		0:00:00.03 for the FLOTTER CNF translation.
% 0.18/0.42  		0:00:00.00 for inferences.
% 0.18/0.42  		0:00:00.00 for the backtracking.
% 0.18/0.42  		0:00:00.00 for the reduction.
% 0.18/0.42  
% 0.18/0.42  
% 0.18/0.42  Here is a proof with depth 4, length 18 :
% 0.18/0.42  % SZS output start Refutation
% See solution above
% 0.18/0.42  Formulae used in the proof : pel56
% 0.18/0.42  
%------------------------------------------------------------------------------