TSTP Solution File: BOO075-1 by Drodi---3.5.1

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Drodi---3.5.1
% Problem  : BOO075-1 : 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 12:02:56 EDT 2023

% Result   : Unsatisfiable 0.19s 0.44s
% Output   : CNFRefutation 0.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   16
%            Number of leaves      :    2
% Syntax   : Number of formulae    :   24 (  24 unt;   0 def)
%            Number of atoms       :   24 (  23 equ)
%            Maximal formula atoms :    1 (   1 avg)
%            Number of connectives :    3 (   3   ~;   0   |;   0   &)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    5 (   3 avg)
%            Maximal term depth    :    9 (   2 avg)
%            Number of predicates  :    2 (   0 usr;   1 prp; 0-2 aty)
%            Number of functors    :    3 (   3 usr;   2 con; 0-2 aty)
%            Number of variables   :   50 (;  50   !;   0   ?)

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

fof(f2,negated_conjecture,
    nand(nand(a,a),nand(b,a)) != a,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f3,plain,
    ! [X0,X1,X2] : nand(nand(X0,nand(nand(X1,X0),X0)),nand(X1,nand(X2,X0))) = X1,
    inference(cnf_transformation,[status(esa)],[f1]) ).

fof(f4,plain,
    nand(nand(a,a),nand(b,a)) != a,
    inference(cnf_transformation,[status(esa)],[f2]) ).

fof(f5,plain,
    ! [X0,X1,X2,X3] : nand(nand(nand(X0,nand(X1,X2)),nand(X0,nand(X0,nand(X1,X2)))),nand(nand(X2,nand(nand(X0,X2),X2)),nand(X3,nand(X0,nand(X1,X2))))) = nand(X2,nand(nand(X0,X2),X2)),
    inference(paramodulation,[status(thm)],[f3,f3]) ).

fof(f6,plain,
    ! [X0,X1,X2] : nand(nand(nand(X0,X1),nand(nand(nand(X1,nand(nand(X2,X1),X1)),nand(X0,X1)),nand(X0,X1))),X2) = nand(X1,nand(nand(X2,X1),X1)),
    inference(paramodulation,[status(thm)],[f3,f3]) ).

fof(f7,plain,
    ! [X0,X1,X2,X3] : nand(nand(nand(X0,nand(X1,X2)),nand(nand(X3,nand(X0,nand(X1,X2))),nand(X0,nand(X1,X2)))),nand(X3,X0)) = X3,
    inference(paramodulation,[status(thm)],[f3,f3]) ).

fof(f11,plain,
    ! [X0,X1,X2,X3] : nand(nand(X0,nand(nand(X1,nand(nand(X2,nand(nand(X0,X2),X2)),nand(X0,nand(X3,X2)))),nand(nand(X2,nand(nand(X0,X2),X2)),nand(X0,nand(X3,X2))))),nand(X1,nand(X2,nand(nand(X0,X2),X2)))) = X1,
    inference(paramodulation,[status(thm)],[f3,f7]) ).

fof(f12,plain,
    ! [X0,X1,X2,X3] : nand(nand(X0,nand(nand(X1,X0),nand(nand(X2,nand(nand(X0,X2),X2)),nand(X0,nand(X3,X2))))),nand(X1,nand(X2,nand(nand(X0,X2),X2)))) = X1,
    inference(forward_demodulation,[status(thm)],[f3,f11]) ).

fof(f13,plain,
    ! [X0,X1,X2] : nand(nand(X0,nand(nand(X1,X0),X0)),nand(X1,nand(X2,nand(nand(X0,X2),X2)))) = X1,
    inference(forward_demodulation,[status(thm)],[f3,f12]) ).

fof(f170,plain,
    ! [X0] : nand(nand(nand(X0,nand(nand(X0,X0),X0)),nand(X0,nand(X0,nand(nand(X0,X0),X0)))),X0) = nand(X0,nand(nand(X0,X0),X0)),
    inference(paramodulation,[status(thm)],[f13,f5]) ).

fof(f171,plain,
    ! [X0] : nand(X0,X0) = nand(X0,nand(nand(X0,X0),X0)),
    inference(forward_demodulation,[status(thm)],[f13,f170]) ).

fof(f245,plain,
    ! [X0,X1] : nand(nand(X0,X0),nand(X0,nand(X1,X0))) = X0,
    inference(paramodulation,[status(thm)],[f171,f3]) ).

fof(f247,plain,
    ! [X0,X1] : nand(nand(nand(X0,nand(nand(X0,X0),X0)),nand(X0,nand(X0,nand(nand(X0,X0),X0)))),nand(nand(X0,nand(nand(X0,X0),X0)),nand(X1,nand(X0,X0)))) = nand(X0,nand(nand(X0,X0),X0)),
    inference(paramodulation,[status(thm)],[f171,f5]) ).

fof(f248,plain,
    ! [X0,X1] : nand(X0,nand(nand(X0,nand(nand(X0,X0),X0)),nand(X1,nand(X0,X0)))) = nand(X0,nand(nand(X0,X0),X0)),
    inference(forward_demodulation,[status(thm)],[f13,f247]) ).

fof(f249,plain,
    ! [X0,X1] : nand(X0,nand(nand(X0,X0),nand(X1,nand(X0,X0)))) = nand(X0,nand(nand(X0,X0),X0)),
    inference(forward_demodulation,[status(thm)],[f171,f248]) ).

fof(f250,plain,
    ! [X0,X1] : nand(X0,nand(nand(X0,X0),nand(X1,nand(X0,X0)))) = nand(X0,X0),
    inference(forward_demodulation,[status(thm)],[f171,f249]) ).

fof(f491,plain,
    ! [X0,X1] : nand(nand(X0,nand(nand(nand(X1,X1),X0),X0)),X1) = nand(X1,X1),
    inference(paramodulation,[status(thm)],[f245,f13]) ).

fof(f664,plain,
    ! [X0,X1] : nand(nand(X0,nand(nand(X1,X0),X0)),nand(X1,X1)) = X1,
    inference(paramodulation,[status(thm)],[f250,f13]) ).

fof(f1126,plain,
    ! [X0,X1] : nand(nand(nand(X0,X1),nand(nand(nand(X0,X1),nand(X0,X1)),nand(X0,X1))),nand(nand(X0,X1),nand(X0,X1))) = nand(X1,nand(nand(nand(nand(X0,X1),nand(X0,X1)),X1),X1)),
    inference(paramodulation,[status(thm)],[f491,f6]) ).

fof(f1127,plain,
    ! [X0,X1] : nand(X0,X1) = nand(X1,nand(nand(nand(nand(X0,X1),nand(X0,X1)),X1),X1)),
    inference(forward_demodulation,[status(thm)],[f664,f1126]) ).

fof(f1331,plain,
    ! [X0,X1] : nand(nand(X0,X0),nand(X1,X0)) = X0,
    inference(paramodulation,[status(thm)],[f1127,f245]) ).

fof(f1401,plain,
    a != a,
    inference(backward_demodulation,[status(thm)],[f1331,f4]) ).

fof(f1402,plain,
    $false,
    inference(trivial_equality_resolution,[status(esa)],[f1401]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.09/0.12  % Problem  : BOO075-1 : TPTP v8.1.2. Released v2.6.0.
% 0.09/0.13  % 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 10:42:43 EDT 2023
% 0.12/0.34  % CPUTime  : 
% 0.12/0.35  % Drodi V3.5.1
% 0.19/0.44  % Refutation found
% 0.19/0.44  % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.19/0.44  % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.19/0.46  % Elapsed time: 0.111088 seconds
% 0.19/0.46  % CPU time: 0.414844 seconds
% 0.19/0.46  % Memory used: 11.695 MB
%------------------------------------------------------------------------------