%------------------------------------------------------------------------------
% File : Drodi---4.1.1
% Problem : SWC047-1 : TPTP v9.3.1. Released v2.4.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n005.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 02:39:44 PM UTC 2026
% Result : Unsatisfiable 0.14s 0.40s
% Output : CNFRefutation 0.14s
% Verified :
% SZS Type : Refutation
% Derivation depth : 11
% Number of leaves : 9
% Syntax : Number of formulae : 32 ( 14 unt; 0 def)
% Number of atoms : 76 ( 22 equ)
% Maximal formula atoms : 5 ( 2 avg)
% Number of connectives : 95 ( 51 ~; 44 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 7 ( 3 avg)
% Maximal term depth : 1 ( 1 avg)
% Number of predicates : 5 ( 3 usr; 1 prp; 0-2 aty)
% Number of functors : 5 ( 5 usr; 5 con; 0-0 aty)
% Number of variables : 12 ( 12 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f59,axiom,
! [U] :
( rearsegP(U,U)
| ~ ssList(U) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f187,negated_conjecture,
ssList(sk2),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f190,negated_conjecture,
sk2 = sk4,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f191,negated_conjecture,
sk1 = sk3,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f192,negated_conjecture,
sk4 = sk3,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f193,negated_conjecture,
( neq(sk2,nil)
| nil = sk2 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f194,negated_conjecture,
! [A] :
( ~ rearsegP(sk1,A)
| ~ rearsegP(sk2,A)
| ~ neq(A,nil)
| ~ ssList(A)
| nil = sk2 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f195,negated_conjecture,
( neq(sk2,nil)
| nil != sk1 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f196,negated_conjecture,
! [A] :
( ~ rearsegP(sk1,A)
| ~ rearsegP(sk2,A)
| ~ neq(A,nil)
| ~ ssList(A)
| nil != sk1 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f255,plain,
! [X0] :
( rearsegP(X0,X0)
| ~ ssList(X0) ),
inference(cnf_transformation,[status(thm)],[f59]) ).
fof(f428,plain,
ssList(sk2),
inference(cnf_transformation,[status(thm)],[f187]) ).
fof(f431,plain,
sk2 = sk4,
inference(cnf_transformation,[status(thm)],[f190]) ).
fof(f432,plain,
sk1 = sk3,
inference(cnf_transformation,[status(thm)],[f191]) ).
fof(f433,plain,
sk4 = sk3,
inference(cnf_transformation,[status(thm)],[f192]) ).
fof(f434,plain,
( neq(sk2,nil)
| nil = sk2 ),
inference(cnf_transformation,[status(thm)],[f193]) ).
fof(f435,plain,
! [X0] :
( ~ rearsegP(sk1,X0)
| ~ rearsegP(sk2,X0)
| ~ neq(X0,nil)
| ~ ssList(X0)
| nil = sk2 ),
inference(cnf_transformation,[status(thm)],[f194]) ).
fof(f436,plain,
( neq(sk2,nil)
| nil != sk1 ),
inference(cnf_transformation,[status(thm)],[f195]) ).
fof(f437,plain,
! [X0] :
( ~ rearsegP(sk1,X0)
| ~ rearsegP(sk2,X0)
| ~ neq(X0,nil)
| ~ ssList(X0)
| nil != sk1 ),
inference(cnf_transformation,[status(thm)],[f196]) ).
fof(f469,plain,
sk1 = sk2,
inference(backward_demodulation,[status(thm)],[f470,f432]) ).
fof(f470,plain,
sk2 = sk3,
inference(forward_demodulation,[status(thm)],[f431,f433]) ).
fof(f472,plain,
( neq(sk2,nil)
| nil != sk2 ),
inference(forward_demodulation,[status(thm)],[f469,f436]) ).
fof(f473,plain,
neq(sk2,nil),
inference(forward_subsumption_resolution,[status(thm)],[f472,f434]) ).
fof(f474,plain,
! [X0] :
( ~ rearsegP(sk2,X0)
| ~ rearsegP(sk2,X0)
| ~ neq(X0,nil)
| ~ ssList(X0)
| nil = sk2 ),
inference(forward_demodulation,[status(thm)],[f469,f435]) ).
fof(f475,plain,
! [X0] :
( ~ rearsegP(sk2,X0)
| ~ neq(X0,nil)
| ~ ssList(X0)
| nil = sk2 ),
inference(duplicate_literals_removal,[status(thm)],[f474]) ).
fof(f478,plain,
! [X0] :
( ~ rearsegP(sk1,X0)
| ~ rearsegP(sk2,X0)
| ~ neq(X0,nil)
| ~ ssList(X0)
| nil != sk2 ),
inference(forward_demodulation,[status(thm)],[f469,f437]) ).
fof(f479,plain,
! [X0] :
( ~ rearsegP(sk2,X0)
| ~ rearsegP(sk2,X0)
| ~ neq(X0,nil)
| ~ ssList(X0)
| nil != sk2 ),
inference(forward_demodulation,[status(thm)],[f469,f478]) ).
fof(f480,plain,
! [X0] :
( ~ rearsegP(sk2,X0)
| ~ neq(X0,nil)
| ~ ssList(X0)
| nil != sk2 ),
inference(duplicate_literals_removal,[status(thm)],[f479]) ).
fof(f481,plain,
! [X0] :
( ~ rearsegP(sk2,X0)
| ~ neq(X0,nil)
| ~ ssList(X0) ),
inference(forward_subsumption_resolution,[status(thm)],[f480,f475]) ).
fof(f482,plain,
( ~ rearsegP(sk2,sk2)
| ~ ssList(sk2) ),
inference(resolution,[status(thm)],[f481,f473]) ).
fof(f483,plain,
~ rearsegP(sk2,sk2),
inference(forward_subsumption_resolution,[status(thm)],[f482,f428]) ).
fof(f484,plain,
~ ssList(sk2),
inference(resolution,[status(thm)],[f483,f255]) ).
fof(f485,plain,
$false,
inference(forward_subsumption_resolution,[status(thm)],[f484,f428]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : SWC047-1 : TPTP v9.3.1. Released v2.4.0.
% 0.00/0.04 % Command : drodi -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.08/0.35 % Computer : n005.cluster.edu
% 0.08/0.35 % Model : x86_64 x86_64
% 0.08/0.35 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.08/0.35 % Memory : 8046.5625MB
% 0.08/0.35 % OS : Linux 6.8.0-71-generic
% 0.08/0.35 % CPULimit : 300
% 0.08/0.35 % WCLimit : 300
% 0.08/0.35 % DateTime : Mon Sep 21 07:51:18 UTC 2026
% 0.08/0.36 % CPUTime :
% 0.14/0.37 % Drodi V4.1.1
% 0.14/0.40 % Refutation found
% 0.14/0.40 % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.14/0.40 % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.14/0.43 % Elapsed time: 0.060168 seconds
% 0.14/0.43 % CPU time: 0.158759 seconds
% 0.14/0.43 % Total memory used: 108.619 MB
% 0.14/0.43 % Net memory used: 108.486 MB
%------------------------------------------------------------------------------