TSTP Solution File: LCL359-1 by SPASS---3.9

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : LCL359-1 : TPTP v8.1.0. Released v2.3.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n021.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 14:36:27 EDT 2022

% Result   : Unsatisfiable 0.20s 0.51s
% Output   : Refutation 0.20s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    6
%            Number of leaves      :    3
% Syntax   : Number of clauses     :    9 (   6 unt;   0 nHn;   9 RR)
%            Number of literals    :   13 (   0 equ;   5 neg)
%            Maximal clause size   :    3 (   1 avg)
%            Maximal term depth    :    5 (   2 avg)
%            Number of predicates  :    2 (   1 usr;   1 prp; 0-1 aty)
%            Number of functors    :    9 (   9 usr;   8 con; 0-2 aty)
%            Number of variables   :    0 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,axiom,
    ( ~ is_a_theorem(u)
    | ~ is_a_theorem(implies__dfg(u,v))
    | is_a_theorem(v) ),
    file('LCL359-1.p',unknown),
    [] ).

cnf(2,axiom,
    is_a_theorem(implies__dfg(implies__dfg(u,v),implies__dfg(implies__dfg(v,w),implies__dfg(u,w)))),
    file('LCL359-1.p',unknown),
    [] ).

cnf(5,axiom,
    ~ is_a_theorem(implies__dfg(implies__dfg(x__dfg,y__dfg),implies__dfg(implies__dfg(z__dfg,x__dfg),implies__dfg(implies__dfg(y__dfg,u__dfg),implies__dfg(z__dfg,u__dfg))))),
    file('LCL359-1.p',unknown),
    [] ).

cnf(13,plain,
    ( ~ is_a_theorem(implies__dfg(u,v))
    | is_a_theorem(implies__dfg(implies__dfg(v,w),implies__dfg(u,w))) ),
    inference(res,[status(thm),theory(equality)],[2,1]),
    [iquote('0:Res:2.0,1.1')] ).

cnf(17,plain,
    is_a_theorem(implies__dfg(implies__dfg(implies__dfg(implies__dfg(u,v),implies__dfg(w,v)),x),implies__dfg(implies__dfg(w,u),x))),
    inference(sor,[status(thm)],[13,2]),
    [iquote('0:SoR:13.0,2.0')] ).

cnf(35,plain,
    ( ~ is_a_theorem(implies__dfg(implies__dfg(implies__dfg(u,v),implies__dfg(w,v)),x))
    | is_a_theorem(implies__dfg(implies__dfg(w,u),x)) ),
    inference(res,[status(thm),theory(equality)],[17,1]),
    [iquote('0:Res:17.0,1.1')] ).

cnf(113,plain,
    is_a_theorem(implies__dfg(implies__dfg(u,implies__dfg(v,w)),implies__dfg(implies__dfg(x,v),implies__dfg(u,implies__dfg(x,w))))),
    inference(sor,[status(thm)],[35,17]),
    [iquote('0:SoR:35.0,17.0')] ).

cnf(470,plain,
    is_a_theorem(implies__dfg(implies__dfg(u,v),implies__dfg(implies__dfg(w,u),implies__dfg(implies__dfg(v,x),implies__dfg(w,x))))),
    inference(sor,[status(thm)],[35,113]),
    [iquote('0:SoR:35.0,113.0')] ).

cnf(475,plain,
    $false,
    inference(unc,[status(thm)],[470,5]),
    [iquote('0:UnC:470.0,5.0')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : LCL359-1 : TPTP v8.1.0. Released v2.3.0.
% 0.03/0.13  % Command  : run_spass %d %s
% 0.13/0.34  % Computer : n021.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  3 04:23:45 EDT 2022
% 0.13/0.35  % CPUTime  : 
% 0.20/0.51  
% 0.20/0.51  SPASS V 3.9 
% 0.20/0.51  SPASS beiseite: Proof found.
% 0.20/0.51  % SZS status Theorem
% 0.20/0.51  Problem: /export/starexec/sandbox/benchmark/theBenchmark.p 
% 0.20/0.51  SPASS derived 455 clauses, backtracked 0 clauses, performed 0 splits and kept 274 clauses.
% 0.20/0.51  SPASS allocated 76480 KBytes.
% 0.20/0.51  SPASS spent	0:00:00.14 on the problem.
% 0.20/0.51  		0:00:00.04 for the input.
% 0.20/0.51  		0:00:00.00 for the FLOTTER CNF translation.
% 0.20/0.51  		0:00:00.02 for inferences.
% 0.20/0.51  		0:00:00.00 for the backtracking.
% 0.20/0.51  		0:00:00.07 for the reduction.
% 0.20/0.51  
% 0.20/0.51  
% 0.20/0.51  Here is a proof with depth 5, length 9 :
% 0.20/0.51  % SZS output start Refutation
% See solution above
% 0.20/0.51  Formulae used in the proof : condensed_detachment cn_1 prove_cn_08
% 0.20/0.51  
%------------------------------------------------------------------------------