TSTP Solution File: REL049-1 by SPASS---3.9

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : SPASS---3.9
% Problem  : REL049-1 : TPTP v8.1.0. Released v4.0.0.
% Transfm  : none
% Format   : tptp
% Command  : run_spass %d %s

% Computer : n018.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 : Mon Jul 18 20:02:31 EDT 2022

% Result   : Unsatisfiable 0.19s 0.42s
% Output   : Refutation 0.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    4
%            Number of leaves      :    5
% Syntax   : Number of clauses     :   11 (  11 unt;   0 nHn;  11 RR)
%            Number of literals    :   11 (   0 equ;   4 neg)
%            Maximal clause size   :    1 (   1 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    2 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    7 (   7 usr;   6 con; 0-2 aty)
%            Number of variables   :    0 (   0 sgn)

% Comments : 
%------------------------------------------------------------------------------
cnf(1,axiom,
    equal(join(sk1,sk2),sk2),
    file('REL049-1.p',unknown),
    [] ).

cnf(2,axiom,
    equal(join(sk3,sk2),sk2),
    file('REL049-1.p',unknown),
    [] ).

cnf(3,axiom,
    ~ equal(join(join(sk1,sk3),sk2),sk2),
    file('REL049-1.p',unknown),
    [] ).

cnf(4,axiom,
    equal(join(u,v),join(v,u)),
    file('REL049-1.p',unknown),
    [] ).

cnf(5,axiom,
    equal(join(join(u,v),w),join(u,join(v,w))),
    file('REL049-1.p',unknown),
    [] ).

cnf(17,plain,
    equal(join(sk2,sk3),sk2),
    inference(rew,[status(thm),theory(equality)],[4,2]),
    [iquote('0:Rew:4.0,2.0')] ).

cnf(18,plain,
    ~ equal(join(sk2,join(sk1,sk3)),sk2),
    inference(rew,[status(thm),theory(equality)],[4,3]),
    [iquote('0:Rew:4.0,3.0')] ).

cnf(183,plain,
    equal(join(u,join(v,w)),join(w,join(u,v))),
    inference(spr,[status(thm),theory(equality)],[5,4]),
    [iquote('0:SpR:5.0,4.0')] ).

cnf(198,plain,
    ~ equal(join(sk1,join(sk3,sk2)),sk2),
    inference(rew,[status(thm),theory(equality)],[183,18]),
    [iquote('0:Rew:183.0,18.0')] ).

cnf(202,plain,
    ~ equal(sk2,sk2),
    inference(rew,[status(thm),theory(equality)],[1,198,17,4]),
    [iquote('0:Rew:1.0,198.0,17.0,198.0,4.0,198.0')] ).

cnf(203,plain,
    $false,
    inference(obv,[status(thm),theory(equality)],[202]),
    [iquote('0:Obv:202.0')] ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : REL049-1 : TPTP v8.1.0. Released v4.0.0.
% 0.07/0.13  % Command  : run_spass %d %s
% 0.12/0.33  % Computer : n018.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 : Fri Jul  8 10:03:55 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 0.19/0.42  
% 0.19/0.42  SPASS V 3.9 
% 0.19/0.42  SPASS beiseite: Proof found.
% 0.19/0.42  % SZS status Theorem
% 0.19/0.42  Problem: /export/starexec/sandbox/benchmark/theBenchmark.p 
% 0.19/0.42  SPASS derived 133 clauses, backtracked 0 clauses, performed 0 splits and kept 72 clauses.
% 0.19/0.42  SPASS allocated 63366 KBytes.
% 0.19/0.42  SPASS spent	0:00:00.07 on the problem.
% 0.19/0.42  		0:00:00.03 for the input.
% 0.19/0.42  		0:00:00.00 for the FLOTTER CNF translation.
% 0.19/0.42  		0:00:00.00 for inferences.
% 0.19/0.42  		0:00:00.00 for the backtracking.
% 0.19/0.42  		0:00:00.01 for the reduction.
% 0.19/0.42  
% 0.19/0.42  
% 0.19/0.42  Here is a proof with depth 1, length 11 :
% 0.19/0.42  % SZS output start Refutation
% See solution above
% 0.19/0.42  Formulae used in the proof : goals_14 goals_15 goals_16 maddux1_join_commutativity_1 maddux2_join_associativity_2
% 0.19/0.42  
%------------------------------------------------------------------------------