TSTP Solution File: LCL098-1 by SPASS---3.9

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : LCL098-1 : TPTP v8.1.0. Released v1.0.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n023.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 : Sun Jul 17 14:34:35 EDT 2022

% Result   : Unsatisfiable 0.97s 1.14s
% Output   : Refutation 0.97s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    8
%            Number of leaves      :    3
% Syntax   : Number of clauses     :   13 (   9 unt;   0 nHn;  13 RR)
%            Number of literals    :   18 (   0 equ;   6 neg)
%            Maximal clause size   :    3 (   1 avg)
%            Maximal term depth    :    8 (   2 avg)
%            Number of predicates  :    2 (   1 usr;   1 prp; 0-1 aty)
%            Number of functors    :   14 (  14 usr;  13 con; 0-2 aty)
%            Number of variables   :    0 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,axiom,
    ( ~ is_a_theorem(u)
    | ~ is_a_theorem(equivalent(u,v))
    | is_a_theorem(v) ),
    file('LCL098-1.p',unknown),
    [] ).

cnf(2,axiom,
    is_a_theorem(equivalent(equivalent(equivalent(equivalent(equivalent(equivalent(u,v),equivalent(u,w)),x),equivalent(equivalent(v,w),x)),y),y)),
    file('LCL098-1.p',unknown),
    [] ).

cnf(3,axiom,
    ~ is_a_theorem(equivalent(equivalent(equivalent(equivalent(a,b),c),e),equivalent(equivalent(equivalent(a,falsehood),c),equivalent(equivalent(b,falsehood),e)))),
    file('LCL098-1.p',unknown),
    [] ).

cnf(7,plain,
    ( ~ is_a_theorem(equivalent(equivalent(equivalent(equivalent(equivalent(u,v),equivalent(u,w)),x),equivalent(equivalent(v,w),x)),y))
    | is_a_theorem(y) ),
    inference(res,[status(thm),theory(equality)],[2,1]),
    [iquote('0:Res:2.0,1.1')] ).

cnf(8,plain,
    is_a_theorem(equivalent(equivalent(equivalent(u,v),w),equivalent(equivalent(x,v),equivalent(equivalent(u,x),w)))),
    inference(sor,[status(thm)],[7,2]),
    [iquote('0:SoR:7.0,2.0')] ).

cnf(9,plain,
    is_a_theorem(equivalent(equivalent(u,v),equivalent(equivalent(equivalent(equivalent(w,x),equivalent(w,y)),u),equivalent(equivalent(x,y),v)))),
    inference(sor,[status(thm)],[7,8]),
    [iquote('0:SoR:7.0,8.0')] ).

cnf(13,plain,
    is_a_theorem(equivalent(equivalent(equivalent(equivalent(u,v),equivalent(u,w)),equivalent(equivalent(equivalent(x,y),equivalent(x,z)),x1)),equivalent(equivalent(v,w),equivalent(equivalent(y,z),x1)))),
    inference(sor,[status(thm)],[7,9]),
    [iquote('0:SoR:7.0,9.0')] ).

cnf(15,plain,
    ( ~ is_a_theorem(equivalent(u,v))
    | is_a_theorem(equivalent(equivalent(equivalent(equivalent(w,x),equivalent(w,y)),u),equivalent(equivalent(x,y),v))) ),
    inference(res,[status(thm),theory(equality)],[9,1]),
    [iquote('0:Res:9.0,1.1')] ).

cnf(22,plain,
    is_a_theorem(equivalent(equivalent(equivalent(equivalent(u,v),equivalent(u,w)),equivalent(equivalent(equivalent(equivalent(equivalent(x,y),equivalent(x,z)),x1),equivalent(equivalent(y,z),x1)),x2)),equivalent(equivalent(v,w),x2))),
    inference(sor,[status(thm)],[15,2]),
    [iquote('0:SoR:15.0,2.0')] ).

cnf(54,plain,
    ( ~ is_a_theorem(equivalent(equivalent(equivalent(u,v),equivalent(u,w)),equivalent(equivalent(equivalent(x,y),equivalent(x,z)),x1)))
    | is_a_theorem(equivalent(equivalent(v,w),equivalent(equivalent(y,z),x1))) ),
    inference(res,[status(thm),theory(equality)],[13,1]),
    [iquote('0:Res:13.0,1.1')] ).

cnf(464,plain,
    is_a_theorem(equivalent(equivalent(equivalent(equivalent(equivalent(equivalent(u,v),equivalent(u,w)),x),equivalent(equivalent(v,w),y)),z),equivalent(equivalent(x,y),z))),
    inference(sor,[status(thm)],[54,22]),
    [iquote('0:SoR:54.0,22.0')] ).

cnf(1125,plain,
    is_a_theorem(equivalent(equivalent(equivalent(equivalent(u,v),w),x),equivalent(equivalent(equivalent(u,y),w),equivalent(equivalent(v,y),x)))),
    inference(sor,[status(thm)],[7,464]),
    [iquote('0:SoR:7.0,464.0')] ).

cnf(1135,plain,
    $false,
    inference(unc,[status(thm)],[1125,3]),
    [iquote('0:UnC:1125.0,3.0')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : LCL098-1 : TPTP v8.1.0. Released v1.0.0.
% 0.03/0.13  % Command  : run_spass %d %s
% 0.13/0.34  % Computer : n023.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 : Mon Jul  4 21:21:57 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.97/1.14  
% 0.97/1.14  SPASS V 3.9 
% 0.97/1.14  SPASS beiseite: Proof found.
% 0.97/1.14  % SZS status Theorem
% 0.97/1.14  Problem: /export/starexec/sandbox/benchmark/theBenchmark.p 
% 0.97/1.14  SPASS derived 1128 clauses, backtracked 0 clauses, performed 0 splits and kept 1036 clauses.
% 0.97/1.14  SPASS allocated 81488 KBytes.
% 0.97/1.14  SPASS spent	0:00:00.76 on the problem.
% 0.97/1.14  		0:00:00.04 for the input.
% 0.97/1.14  		0:00:00.00 for the FLOTTER CNF translation.
% 0.97/1.14  		0:00:00.05 for inferences.
% 0.97/1.14  		0:00:00.00 for the backtracking.
% 0.97/1.14  		0:00:00.64 for the reduction.
% 0.97/1.14  
% 0.97/1.14  
% 0.97/1.14  Here is a proof with depth 7, length 13 :
% 0.97/1.14  % SZS output start Refutation
% See solution above
% 0.97/1.14  Formulae used in the proof : condensed_detachment lg_3 prove_lg_4
% 0.97/1.14  
%------------------------------------------------------------------------------