TSTP Solution File: LCL131-1 by SPASS---3.9

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : LCL131-1 : TPTP v8.1.0. Released v1.0.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n016.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 14:34:50 EDT 2022

% Result   : Unsatisfiable 98.83s 99.01s
% Output   : Refutation 98.83s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   23
%            Number of leaves      :    3
% Syntax   : Number of clauses     :   42 (  27 unt;   0 nHn;  42 RR)
%            Number of literals    :   59 (   0 equ;  18 neg)
%            Maximal clause size   :    3 (   1 avg)
%            Maximal term depth    :    7 (   2 avg)
%            Number of predicates  :    2 (   1 usr;   1 prp; 0-1 aty)
%            Number of functors    :   11 (  11 usr;  10 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('LCL131-1.p',unknown),
    [] ).

cnf(2,axiom,
    is_a_theorem(equivalent(equivalent(u,equivalent(equivalent(equivalent(v,w),equivalent(x,w)),equivalent(v,x))),u)),
    file('LCL131-1.p',unknown),
    [] ).

cnf(3,axiom,
    ~ is_a_theorem(equivalent(a,equivalent(a,equivalent(equivalent(b,c),equivalent(equivalent(b,e),equivalent(c,e)))))),
    file('LCL131-1.p',unknown),
    [] ).

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

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

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

cnf(11,plain,
    is_a_theorem(equivalent(equivalent(equivalent(equivalent(u,v),equivalent(w,v)),x),equivalent(equivalent(u,w),x))),
    inference(sor,[status(thm)],[7,9]),
    [iquote('0:SoR:7.0,9.0')] ).

cnf(12,plain,
    ( ~ is_a_theorem(equivalent(equivalent(u,v),equivalent(w,v)))
    | is_a_theorem(equivalent(u,w)) ),
    inference(res,[status(thm),theory(equality)],[9,1]),
    [iquote('0:Res:9.0,1.1')] ).

cnf(13,plain,
    is_a_theorem(equivalent(equivalent(equivalent(u,v),equivalent(w,v)),equivalent(equivalent(u,x),equivalent(w,x)))),
    inference(sor,[status(thm)],[12,8]),
    [iquote('0:SoR:12.0,8.0')] ).

cnf(15,plain,
    is_a_theorem(equivalent(equivalent(equivalent(equivalent(u,v),w),equivalent(equivalent(x,v),w)),equivalent(u,x))),
    inference(sor,[status(thm)],[7,11]),
    [iquote('0:SoR:7.0,11.0')] ).

cnf(17,plain,
    ( ~ is_a_theorem(equivalent(equivalent(equivalent(u,v),equivalent(w,v)),x))
    | is_a_theorem(equivalent(equivalent(u,w),x)) ),
    inference(res,[status(thm),theory(equality)],[11,1]),
    [iquote('0:Res:11.0,1.1')] ).

cnf(18,plain,
    is_a_theorem(equivalent(equivalent(u,v),equivalent(u,v))),
    inference(sor,[status(thm)],[12,13]),
    [iquote('0:SoR:12.0,13.0')] ).

cnf(19,plain,
    ( ~ is_a_theorem(equivalent(equivalent(u,v),equivalent(w,v)))
    | is_a_theorem(equivalent(equivalent(u,x),equivalent(w,x))) ),
    inference(res,[status(thm),theory(equality)],[13,1]),
    [iquote('0:Res:13.0,1.1')] ).

cnf(20,plain,
    is_a_theorem(equivalent(equivalent(equivalent(equivalent(equivalent(u,v),equivalent(w,v)),x),y),equivalent(equivalent(equivalent(u,w),x),y))),
    inference(sor,[status(thm)],[7,15]),
    [iquote('0:SoR:7.0,15.0')] ).

cnf(23,plain,
    is_a_theorem(equivalent(u,u)),
    inference(sor,[status(thm)],[12,18]),
    [iquote('0:SoR:12.0,18.0')] ).

cnf(28,plain,
    is_a_theorem(equivalent(equivalent(u,v),equivalent(equivalent(u,w),equivalent(v,w)))),
    inference(sor,[status(thm)],[17,13]),
    [iquote('0:SoR:17.0,13.0')] ).

cnf(32,plain,
    is_a_theorem(equivalent(equivalent(u,equivalent(equivalent(v,w),equivalent(x,w))),equivalent(u,equivalent(v,x)))),
    inference(sor,[status(thm)],[17,2]),
    [iquote('0:SoR:17.0,2.0')] ).

cnf(35,plain,
    ( ~ is_a_theorem(equivalent(u,v))
    | is_a_theorem(equivalent(equivalent(u,w),equivalent(v,w))) ),
    inference(res,[status(thm),theory(equality)],[28,1]),
    [iquote('0:Res:28.0,1.1')] ).

cnf(45,plain,
    is_a_theorem(equivalent(equivalent(equivalent(u,equivalent(equivalent(equivalent(v,w),equivalent(x,w)),equivalent(v,x))),y),equivalent(u,y))),
    inference(sor,[status(thm)],[35,2]),
    [iquote('0:SoR:35.0,2.0')] ).

cnf(48,plain,
    is_a_theorem(equivalent(equivalent(u,equivalent(v,w)),equivalent(equivalent(u,equivalent(x,w)),equivalent(v,x)))),
    inference(sor,[status(thm)],[17,32]),
    [iquote('0:SoR:17.0,32.0')] ).

cnf(71,plain,
    is_a_theorem(equivalent(equivalent(u,v),equivalent(equivalent(u,equivalent(w,w)),v))),
    inference(sor,[status(thm)],[19,48]),
    [iquote('0:SoR:19.0,48.0')] ).

cnf(99,plain,
    ( ~ is_a_theorem(equivalent(u,v))
    | is_a_theorem(equivalent(equivalent(u,equivalent(w,w)),v)) ),
    inference(res,[status(thm),theory(equality)],[71,1]),
    [iquote('0:Res:71.0,1.1')] ).

cnf(124,plain,
    is_a_theorem(equivalent(equivalent(u,equivalent(v,v)),u)),
    inference(sor,[status(thm)],[99,23]),
    [iquote('0:SoR:99.0,23.0')] ).

cnf(126,plain,
    is_a_theorem(equivalent(equivalent(equivalent(u,equivalent(v,v)),w),equivalent(u,w))),
    inference(sor,[status(thm)],[35,124]),
    [iquote('0:SoR:35.0,124.0')] ).

cnf(132,plain,
    ( ~ is_a_theorem(equivalent(u,equivalent(v,v)))
    | is_a_theorem(u) ),
    inference(res,[status(thm),theory(equality)],[124,1]),
    [iquote('0:Res:124.0,1.1')] ).

cnf(136,plain,
    is_a_theorem(equivalent(equivalent(equivalent(equivalent(u,v),equivalent(w,v)),equivalent(x,w)),equivalent(u,x))),
    inference(sor,[status(thm)],[7,20]),
    [iquote('0:SoR:7.0,20.0')] ).

cnf(154,plain,
    is_a_theorem(equivalent(equivalent(u,u),equivalent(v,v))),
    inference(sor,[status(thm)],[132,124]),
    [iquote('0:SoR:132.0,124.0')] ).

cnf(158,plain,
    is_a_theorem(equivalent(equivalent(equivalent(u,u),v),equivalent(equivalent(w,w),v))),
    inference(sor,[status(thm)],[35,154]),
    [iquote('0:SoR:35.0,154.0')] ).

cnf(187,plain,
    ( ~ is_a_theorem(equivalent(equivalent(equivalent(u,v),equivalent(w,v)),equivalent(x,w)))
    | is_a_theorem(equivalent(u,x)) ),
    inference(res,[status(thm),theory(equality)],[136,1]),
    [iquote('0:Res:136.0,1.1')] ).

cnf(196,plain,
    ( ~ is_a_theorem(equivalent(equivalent(u,equivalent(v,v)),w))
    | is_a_theorem(equivalent(u,w)) ),
    inference(res,[status(thm),theory(equality)],[126,1]),
    [iquote('0:Res:126.0,1.1')] ).

cnf(207,plain,
    is_a_theorem(equivalent(equivalent(u,v),equivalent(equivalent(w,w),equivalent(v,u)))),
    inference(sor,[status(thm)],[17,158]),
    [iquote('0:SoR:17.0,158.0')] ).

cnf(487,plain,
    is_a_theorem(equivalent(u,equivalent(equivalent(u,equivalent(v,w)),equivalent(w,v)))),
    inference(sor,[status(thm)],[196,48]),
    [iquote('0:SoR:196.0,48.0')] ).

cnf(495,plain,
    is_a_theorem(equivalent(u,equivalent(equivalent(v,v),equivalent(equivalent(w,w),u)))),
    inference(sor,[status(thm)],[196,207]),
    [iquote('0:SoR:196.0,207.0')] ).

cnf(582,plain,
    ( ~ is_a_theorem(u)
    | is_a_theorem(equivalent(equivalent(v,v),equivalent(equivalent(w,w),u))) ),
    inference(res,[status(thm),theory(equality)],[495,1]),
    [iquote('0:Res:495.0,1.1')] ).

cnf(1225,plain,
    ( ~ is_a_theorem(u)
    | ~ is_a_theorem(equivalent(v,v))
    | is_a_theorem(equivalent(equivalent(w,w),u)) ),
    inference(res,[status(thm),theory(equality)],[582,1]),
    [iquote('0:Res:582.1,1.1')] ).

cnf(1226,plain,
    ( ~ is_a_theorem(u)
    | is_a_theorem(equivalent(equivalent(v,v),u)) ),
    inference(ssi,[status(thm)],[1225,23]),
    [iquote('0:SSi:1225.1,23.0')] ).

cnf(1242,plain,
    ( ~ is_a_theorem(equivalent(u,v))
    | is_a_theorem(equivalent(v,u)) ),
    inference(sor,[status(thm)],[187,1226]),
    [iquote('0:SoR:187.0,1226.1')] ).

cnf(1259,plain,
    is_a_theorem(equivalent(equivalent(equivalent(u,equivalent(v,w)),equivalent(w,v)),u)),
    inference(sor,[status(thm)],[1242,487]),
    [iquote('0:SoR:1242.0,487.0')] ).

cnf(1380,plain,
    ( ~ is_a_theorem(equivalent(equivalent(u,equivalent(equivalent(equivalent(v,w),equivalent(x,w)),equivalent(v,x))),y))
    | is_a_theorem(equivalent(u,y)) ),
    inference(res,[status(thm),theory(equality)],[45,1]),
    [iquote('0:Res:45.0,1.1')] ).

cnf(27815,plain,
    is_a_theorem(equivalent(equivalent(u,equivalent(equivalent(v,w),equivalent(equivalent(v,x),equivalent(w,x)))),u)),
    inference(sor,[status(thm)],[1380,1259]),
    [iquote('0:SoR:1380.0,1259.0')] ).

cnf(40807,plain,
    is_a_theorem(equivalent(u,equivalent(u,equivalent(equivalent(v,w),equivalent(equivalent(v,x),equivalent(w,x)))))),
    inference(sor,[status(thm)],[1242,27815]),
    [iquote('0:SoR:1242.0,27815.0')] ).

cnf(40883,plain,
    $false,
    inference(unc,[status(thm)],[40807,3]),
    [iquote('0:UnC:40807.0,3.0')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.12  % Problem  : LCL131-1 : TPTP v8.1.0. Released v1.0.0.
% 0.11/0.13  % Command  : run_spass %d %s
% 0.12/0.34  % Computer : n016.cluster.edu
% 0.12/0.34  % Model    : x86_64 x86_64
% 0.12/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.34  % Memory   : 8042.1875MB
% 0.12/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.34  % CPULimit : 300
% 0.12/0.34  % WCLimit  : 600
% 0.12/0.34  % DateTime : Sun Jul  3 10:32:15 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 98.83/99.01  
% 98.83/99.01  SPASS V 3.9 
% 98.83/99.01  SPASS beiseite: Proof found.
% 98.83/99.01  % SZS status Theorem
% 98.83/99.01  Problem: /export/starexec/sandbox/benchmark/theBenchmark.p 
% 98.83/99.01  SPASS derived 40562 clauses, backtracked 0 clauses, performed 0 splits and kept 16346 clauses.
% 98.83/99.01  SPASS allocated 122089 KBytes.
% 98.83/99.01  SPASS spent	0:1:37.91 on the problem.
% 98.83/99.01  		0:00:00.04 for the input.
% 98.83/99.01  		0:00:00.00 for the FLOTTER CNF translation.
% 98.83/99.01  		0:00:00.79 for inferences.
% 98.83/99.01  		0:00:00.00 for the backtracking.
% 98.83/99.01  		0:1:36.94 for the reduction.
% 98.83/99.01  
% 98.83/99.01  
% 98.83/99.01  Here is a proof with depth 21, length 42 :
% 98.83/99.01  % SZS output start Refutation
% See solution above
% 98.83/99.01  Formulae used in the proof : condensed_detachment s_6 prove_lg_2
% 98.83/99.01  
%------------------------------------------------------------------------------