%------------------------------------------------------------------------------
% File : Drodi---4.1.1
% Problem : SET117-7 : TPTP v9.3.1. Bugfixed v7.3.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% Computer : n003.cluster.edu
% Model : x86_64 x86_64
% CPU : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory : 8046.5625MB
% OS : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit : 300s
% DateTime : Thu Sep 24 02:09:24 PM UTC 2026
% Result : Unsatisfiable 0.20s 0.52s
% Output : CNFRefutation 0.20s
% Verified :
% SZS Type : Refutation
% Derivation depth : 3
% Number of leaves : 3
% Syntax : Number of formulae : 8 ( 8 unt; 0 def)
% Number of atoms : 8 ( 2 equ)
% Maximal formula atoms : 1 ( 1 avg)
% Number of connectives : 2 ( 2 ~; 0 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 3 ( 2 avg)
% Maximal term depth : 3 ( 1 avg)
% Number of predicates : 3 ( 1 usr; 1 prp; 0-2 aty)
% Number of functors : 5 ( 5 usr; 2 con; 0-2 aty)
% Number of variables : 4 ( 4 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f145,axiom,
! [X,Y] : member(ordered_pair(X,Y),universal_class),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f164,negated_conjecture,
ordered_pair(first(x),second(x)) = x,
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f165,negated_conjecture,
~ member(x,universal_class),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f338,plain,
! [X0,X1] : member(ordered_pair(X0,X1),universal_class),
inference(cnf_transformation,[status(thm)],[f145]) ).
fof(f362,plain,
ordered_pair(first(x),second(x)) = x,
inference(cnf_transformation,[status(thm)],[f164]) ).
fof(f363,plain,
~ member(x,universal_class),
inference(cnf_transformation,[status(thm)],[f165]) ).
fof(f367,plain,
member(x,universal_class),
inference(paramodulation,[status(thm)],[f362,f338]) ).
fof(f368,plain,
$false,
inference(forward_subsumption_resolution,[status(thm)],[f367,f363]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.05 % Problem : SET117-7 : TPTP v9.3.1. Bugfixed v7.3.0.
% 0.00/0.07 % Command : drodi -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.20/0.46 % Computer : n003.cluster.edu
% 0.20/0.46 % Model : x86_64 x86_64
% 0.20/0.46 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.20/0.46 % Memory : 8046.5625MB
% 0.20/0.46 % OS : Linux 6.8.0-71-generic
% 0.20/0.46 % CPULimit : 300
% 0.20/0.46 % WCLimit : 300
% 0.20/0.46 % DateTime : Mon Sep 21 04:56:00 UTC 2026
% 0.20/0.46 % CPUTime :
% 0.20/0.49 % Drodi V4.1.1
% 0.20/0.52 % Refutation found
% 0.20/0.52 % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.20/0.52 % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.24/0.60 % Elapsed time: 0.124594 seconds
% 0.24/0.60 % CPU time: 0.111047 seconds
% 0.24/0.60 % Total memory used: 3.367 MB
% 0.24/0.60 % Net memory used: 3.364 MB
%------------------------------------------------------------------------------