%------------------------------------------------------------------------------
% File : Drodi---4.1.1
% Problem : SET093-7 : TPTP v9.3.1. Bugfixed v2.1.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n004.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 02:09:18 PM UTC 2026
% Result : Unsatisfiable 0.16s 5.43s
% Output : CNFRefutation 0.16s
% 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 : 2 ( 2 avg)
% Maximal term depth : 3 ( 1 avg)
% Number of predicates : 3 ( 1 usr; 1 prp; 0-2 aty)
% Number of functors : 4 ( 4 usr; 2 con; 0-1 aty)
% Number of variables : 2 ( 2 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f120,axiom,
! [X] : member(singleton(X),universal_class),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f137,negated_conjecture,
singleton(member_of(x)) = x,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f138,negated_conjecture,
~ member(x,universal_class),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f285,plain,
! [X0] : member(singleton(X0),universal_class),
inference(cnf_transformation,[status(thm)],[f120]) ).
fof(f303,plain,
singleton(member_of(x)) = x,
inference(cnf_transformation,[status(thm)],[f137]) ).
fof(f304,plain,
~ member(x,universal_class),
inference(cnf_transformation,[status(thm)],[f138]) ).
fof(f307,plain,
member(x,universal_class),
inference(paramodulation,[status(thm)],[f303,f285]) ).
fof(f308,plain,
$false,
inference(forward_subsumption_resolution,[status(thm)],[f307,f304]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SET093-7 : TPTP v9.3.1. Bugfixed v2.1.0.
% 0.00/0.04 % Command : drodi -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.12/5.38 % Computer : n004.cluster.edu
% 0.12/5.38 % Model : x86_64 x86_64
% 0.12/5.38 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/5.38 % Memory : 8046.5625MB
% 0.12/5.38 % OS : Linux 6.8.0-71-generic
% 0.12/5.38 % CPULimit : 300
% 0.12/5.38 % WCLimit : 300
% 0.12/5.38 % DateTime : Mon Sep 21 04:51:27 UTC 2026
% 0.12/5.38 % CPUTime :
% 0.16/5.40 % Drodi V4.1.1
% 0.16/5.43 % Refutation found
% 0.16/5.43 % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.16/5.43 % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.16/5.46 % Elapsed time: 0.064518 seconds
% 0.16/5.46 % CPU time: 0.174614 seconds
% 0.16/5.46 % Total memory used: 106.146 MB
% 0.16/5.46 % Net memory used: 106.064 MB
%------------------------------------------------------------------------------