%------------------------------------------------------------------------------
% File : Drodi---4.1.1
% Problem : CAT019-2 : TPTP v9.3.1. Released v1.0.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n006.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 12:07:32 PM UTC 2026
% Result : Unsatisfiable 0.22s 0.63s
% Output : CNFRefutation 0.22s
% Verified :
% SZS Type : Refutation
% Derivation depth : 4
% Number of leaves : 2
% Syntax : Number of formulae : 7 ( 5 unt; 0 def)
% Number of atoms : 9 ( 8 equ)
% Maximal formula atoms : 2 ( 1 avg)
% Number of connectives : 7 ( 5 ~; 2 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 4 ( 2 avg)
% Maximal term depth : 1 ( 1 avg)
% Number of predicates : 2 ( 0 usr; 1 prp; 0-2 aty)
% Number of functors : 2 ( 2 usr; 2 con; 0-0 aty)
% Number of variables : 2 ( 2 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f8,hypothesis,
! [Z] :
( c1 = Z
| c2 != Z ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f10,negated_conjecture,
c2 != c1,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f18,plain,
! [X0] :
( c1 = X0
| c2 != X0 ),
inference(cnf_transformation,[status(thm)],[f8]) ).
fof(f20,plain,
c2 != c1,
inference(cnf_transformation,[status(thm)],[f10]) ).
fof(f21,plain,
c1 = c2,
inference(destructive_equality_resolution,[status(thm)],[f18]) ).
fof(f23,plain,
c2 != c2,
inference(forward_demodulation,[status(thm)],[f21,f20]) ).
fof(f24,plain,
$false,
inference(trivial_equality_resolution,[status(thm)],[f23]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.05 % Problem : CAT019-2 : TPTP v9.3.1. Released v1.0.0.
% 0.00/0.06 % Command : drodi -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.16/0.58 % Computer : n006.cluster.edu
% 0.16/0.58 % Model : x86_64 x86_64
% 0.16/0.58 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.16/0.58 % Memory : 8046.5625MB
% 0.16/0.58 % OS : Linux 6.8.0-71-generic
% 0.16/0.58 % CPULimit : 300
% 0.16/0.58 % WCLimit : 300
% 0.16/0.58 % DateTime : Mon Sep 21 13:56:28 UTC 2026
% 0.16/0.59 % CPUTime :
% 0.16/0.60 % Drodi V4.1.1
% 0.22/0.63 % Refutation found
% 0.22/0.63 % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.22/0.63 % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.22/0.66 % Elapsed time: 0.068079 seconds
% 0.22/0.66 % CPU time: 0.184867 seconds
% 0.22/0.66 % Total memory used: 66.469 MB
% 0.22/0.66 % Net memory used: 65.853 MB
%------------------------------------------------------------------------------