TSTP Solution File: GRP679-1 by SPASS---3.9

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : GRP679-1 : TPTP v8.1.0. Released v4.0.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n017.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 : Sat Jul 16 11:48:56 EDT 2022

% Result   : Unsatisfiable 0.19s 0.44s
% Output   : Refutation 0.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    4
%            Number of leaves      :    5
% Syntax   : Number of clauses     :   13 (  13 unt;   0 nHn;  13 RR)
%            Number of literals    :   13 (   0 equ;   2 neg)
%            Maximal clause size   :    1 (   1 avg)
%            Maximal term depth    :    5 (   2 avg)
%            Number of predicates  :    2 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    8 (   8 usr;   6 con; 0-2 aty)
%            Number of variables   :    0 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(2,axiom,
    equal(ld(u,mult(u,v)),v),
    file('GRP679-1.p',unknown),
    [] ).

cnf(6,axiom,
    equal(mult(unit,u),u),
    file('GRP679-1.p',unknown),
    [] ).

cnf(7,axiom,
    equal(mult(mult(u,mult(v,u)),w),mult(u,mult(v,mult(u,w)))),
    file('GRP679-1.p',unknown),
    [] ).

cnf(8,axiom,
    equal(mult(op_c,u),mult(u,op_c)),
    file('GRP679-1.p',unknown),
    [] ).

cnf(9,axiom,
    ~ equal(mult(mult(op_c,op_c),a),mult(a,mult(op_c,op_c))),
    file('GRP679-1.p',unknown),
    [] ).

cnf(51,plain,
    equal(ld(op_c,mult(u,op_c)),u),
    inference(spr,[status(thm),theory(equality)],[8,2]),
    [iquote('0:SpR:8.0,2.0')] ).

cnf(136,plain,
    equal(mult(u,mult(unit,mult(u,v))),mult(mult(u,u),v)),
    inference(spr,[status(thm),theory(equality)],[6,7]),
    [iquote('0:SpR:6.0,7.0')] ).

cnf(139,plain,
    equal(mult(mult(op_c,mult(op_c,u)),v),mult(op_c,mult(u,mult(op_c,v)))),
    inference(spr,[status(thm),theory(equality)],[8,7]),
    [iquote('0:SpR:8.0,7.0')] ).

cnf(144,plain,
    equal(mult(mult(u,u),v),mult(u,mult(u,v))),
    inference(rew,[status(thm),theory(equality)],[6,136]),
    [iquote('0:Rew:6.0,136.0')] ).

cnf(145,plain,
    ~ equal(mult(a,mult(op_c,op_c)),mult(op_c,mult(op_c,a))),
    inference(rew,[status(thm),theory(equality)],[144,9]),
    [iquote('0:Rew:144.0,9.0')] ).

cnf(316,plain,
    equal(ld(op_c,mult(op_c,mult(u,mult(op_c,op_c)))),mult(op_c,mult(op_c,u))),
    inference(spr,[status(thm),theory(equality)],[139,51]),
    [iquote('0:SpR:139.0,51.0')] ).

cnf(344,plain,
    equal(mult(u,mult(op_c,op_c)),mult(op_c,mult(op_c,u))),
    inference(rew,[status(thm),theory(equality)],[2,316]),
    [iquote('0:Rew:2.0,316.0')] ).

cnf(345,plain,
    $false,
    inference(unc,[status(thm)],[344,145]),
    [iquote('0:UnC:344.0,145.0')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : GRP679-1 : TPTP v8.1.0. Released v4.0.0.
% 0.03/0.13  % Command  : run_spass %d %s
% 0.14/0.32  % Computer : n017.cluster.edu
% 0.14/0.32  % Model    : x86_64 x86_64
% 0.14/0.32  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.32  % Memory   : 8042.1875MB
% 0.14/0.32  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.33  % CPULimit : 300
% 0.14/0.33  % WCLimit  : 600
% 0.14/0.33  % DateTime : Mon Jun 13 21:10:38 EDT 2022
% 0.14/0.33  % CPUTime  : 
% 0.19/0.44  
% 0.19/0.44  SPASS V 3.9 
% 0.19/0.44  SPASS beiseite: Proof found.
% 0.19/0.44  % SZS status Theorem
% 0.19/0.44  Problem: /export/starexec/sandbox2/benchmark/theBenchmark.p 
% 0.19/0.44  SPASS derived 277 clauses, backtracked 0 clauses, performed 0 splits and kept 81 clauses.
% 0.19/0.44  SPASS allocated 63561 KBytes.
% 0.19/0.44  SPASS spent	0:00:00.10 on the problem.
% 0.19/0.44  		0:00:00.04 for the input.
% 0.19/0.44  		0:00:00.00 for the FLOTTER CNF translation.
% 0.19/0.44  		0:00:00.00 for inferences.
% 0.19/0.44  		0:00:00.00 for the backtracking.
% 0.19/0.44  		0:00:00.03 for the reduction.
% 0.19/0.44  
% 0.19/0.44  
% 0.19/0.44  Here is a proof with depth 2, length 13 :
% 0.19/0.44  % SZS output start Refutation
% See solution above
% 0.19/0.44  Formulae used in the proof : c02 c06 c07 c08 goals
% 0.19/0.44  
%------------------------------------------------------------------------------