TSTP Solution File: GRP542-1 by Drodi---3.5.1

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Drodi---3.5.1
% Problem  : GRP542-1 : TPTP v8.1.2. Released v2.6.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : drodi -learnfrom(drodi.lrn) -timeout(%d) %s

% Computer : n020.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  : 300s
% DateTime : Wed May 31 12:12:01 EDT 2023

% Result   : Unsatisfiable 0.12s 0.36s
% Output   : CNFRefutation 0.12s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   13
%            Number of leaves      :    5
% Syntax   : Number of formulae    :   28 (  28 unt;   0 def)
%            Number of atoms       :   28 (  27 equ)
%            Maximal formula atoms :    1 (   1 avg)
%            Number of connectives :    4 (   4   ~;   0   |;   0   &)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    4 (   2 avg)
%            Maximal term depth    :    6 (   2 avg)
%            Number of predicates  :    2 (   0 usr;   1 prp; 0-2 aty)
%            Number of functors    :    6 (   6 usr;   3 con; 0-2 aty)
%            Number of variables   :   34 (;  34   !;   0   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f1,axiom,
    ! [A,B,C] : divide(divide(identity,divide(divide(divide(A,B),C),A)),C) = B,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f2,axiom,
    ! [A,B] : multiply(A,B) = divide(A,divide(identity,B)),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f3,axiom,
    ! [A] : inverse(A) = divide(identity,A),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f4,axiom,
    ! [A] : identity = divide(A,A),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f5,negated_conjecture,
    multiply(multiply(inverse(b2),b2),a2) != a2,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f6,plain,
    ! [X0,X1,X2] : divide(divide(identity,divide(divide(divide(X0,X1),X2),X0)),X2) = X1,
    inference(cnf_transformation,[status(esa)],[f1]) ).

fof(f7,plain,
    ! [X0,X1] : multiply(X0,X1) = divide(X0,divide(identity,X1)),
    inference(cnf_transformation,[status(esa)],[f2]) ).

fof(f8,plain,
    ! [X0] : inverse(X0) = divide(identity,X0),
    inference(cnf_transformation,[status(esa)],[f3]) ).

fof(f9,plain,
    ! [X0] : identity = divide(X0,X0),
    inference(cnf_transformation,[status(esa)],[f4]) ).

fof(f10,plain,
    multiply(multiply(inverse(b2),b2),a2) != a2,
    inference(cnf_transformation,[status(esa)],[f5]) ).

fof(f11,plain,
    ! [X0,X1,X2] : divide(inverse(divide(divide(divide(X0,X1),X2),X0)),X2) = X1,
    inference(backward_demodulation,[status(thm)],[f8,f6]) ).

fof(f12,plain,
    ! [X0,X1] : multiply(X0,X1) = divide(X0,inverse(X1)),
    inference(backward_demodulation,[status(thm)],[f8,f7]) ).

fof(f13,plain,
    inverse(identity) = identity,
    inference(paramodulation,[status(thm)],[f9,f8]) ).

fof(f15,plain,
    ! [X0] : multiply(identity,X0) = inverse(inverse(X0)),
    inference(paramodulation,[status(thm)],[f8,f12]) ).

fof(f16,plain,
    ! [X0] : multiply(inverse(X0),X0) = identity,
    inference(paramodulation,[status(thm)],[f9,f12]) ).

fof(f17,plain,
    ! [X0] : multiply(X0,identity) = divide(X0,identity),
    inference(paramodulation,[status(thm)],[f13,f12]) ).

fof(f20,plain,
    multiply(identity,a2) != a2,
    inference(backward_demodulation,[status(thm)],[f16,f10]) ).

fof(f29,plain,
    ! [X0,X1] : divide(inverse(divide(identity,X0)),divide(X0,X1)) = X1,
    inference(paramodulation,[status(thm)],[f9,f11]) ).

fof(f30,plain,
    ! [X0,X1] : divide(inverse(inverse(X0)),divide(X0,X1)) = X1,
    inference(forward_demodulation,[status(thm)],[f8,f29]) ).

fof(f31,plain,
    ! [X0,X1] : divide(multiply(identity,X0),divide(X0,X1)) = X1,
    inference(forward_demodulation,[status(thm)],[f15,f30]) ).

fof(f51,plain,
    ! [X0] : divide(divide(identity,identity),divide(identity,X0)) = X0,
    inference(paramodulation,[status(thm)],[f17,f31]) ).

fof(f52,plain,
    ! [X0] : divide(inverse(identity),divide(identity,X0)) = X0,
    inference(forward_demodulation,[status(thm)],[f8,f51]) ).

fof(f53,plain,
    ! [X0] : divide(identity,divide(identity,X0)) = X0,
    inference(forward_demodulation,[status(thm)],[f13,f52]) ).

fof(f54,plain,
    ! [X0] : inverse(divide(identity,X0)) = X0,
    inference(forward_demodulation,[status(thm)],[f8,f53]) ).

fof(f55,plain,
    ! [X0] : inverse(inverse(X0)) = X0,
    inference(forward_demodulation,[status(thm)],[f8,f54]) ).

fof(f56,plain,
    ! [X0] : multiply(identity,X0) = X0,
    inference(forward_demodulation,[status(thm)],[f15,f55]) ).

fof(f72,plain,
    a2 != a2,
    inference(backward_demodulation,[status(thm)],[f56,f20]) ).

fof(f73,plain,
    $false,
    inference(trivial_equality_resolution,[status(esa)],[f72]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : GRP542-1 : TPTP v8.1.2. Released v2.6.0.
% 0.07/0.13  % Command  : drodi -learnfrom(drodi.lrn) -timeout(%d) %s
% 0.12/0.34  % Computer : n020.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  : 300
% 0.12/0.34  % DateTime : Tue May 30 11:32:43 EDT 2023
% 0.12/0.34  % CPUTime  : 
% 0.12/0.35  % Drodi V3.5.1
% 0.12/0.36  % Refutation found
% 0.12/0.36  % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.12/0.36  % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.19/0.58  % Elapsed time: 0.022805 seconds
% 0.19/0.58  % CPU time: 0.020030 seconds
% 0.19/0.58  % Memory used: 304.733 KB
%------------------------------------------------------------------------------