%------------------------------------------------------------------------------
% File : Drodi---4.1.1
% Problem : SWC103-1 : TPTP v9.3.1. Released v2.4.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% Computer : n019.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 02:39:58 PM UTC 2026
% Result : Unsatisfiable 0.08s 5.56s
% Output : CNFRefutation 0.08s
% Verified :
% SZS Type : Refutation
% Derivation depth : 6
% Number of leaves : 6
% Syntax : Number of formulae : 21 ( 10 unt; 0 def)
% Number of atoms : 32 ( 4 equ)
% Maximal formula atoms : 2 ( 1 avg)
% Number of connectives : 25 ( 14 ~; 11 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 3 ( 2 avg)
% Maximal term depth : 1 ( 1 avg)
% Number of predicates : 4 ( 2 usr; 1 prp; 0-2 aty)
% Number of functors : 5 ( 5 usr; 5 con; 0-0 aty)
% Number of variables : 0 ( 0 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f190,negated_conjecture,
sk2 = sk4,
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f191,negated_conjecture,
sk1 = sk3,
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f192,negated_conjecture,
neq(sk2,nil),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f194,negated_conjecture,
( ~ frontsegP(sk2,sk1)
| ~ neq(sk1,nil) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f195,negated_conjecture,
( neq(sk3,nil)
| ~ neq(sk4,nil) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f196,negated_conjecture,
( frontsegP(sk4,sk3)
| ~ neq(sk4,nil) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
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,
neq(sk2,nil),
inference(cnf_transformation,[status(thm)],[f192]) ).
fof(f435,plain,
( ~ frontsegP(sk2,sk1)
| ~ neq(sk1,nil) ),
inference(cnf_transformation,[status(thm)],[f194]) ).
fof(f436,plain,
( neq(sk3,nil)
| ~ neq(sk4,nil) ),
inference(cnf_transformation,[status(thm)],[f195]) ).
fof(f437,plain,
( frontsegP(sk4,sk3)
| ~ neq(sk4,nil) ),
inference(cnf_transformation,[status(thm)],[f196]) ).
fof(f485,plain,
( neq(sk3,nil)
| ~ neq(sk2,nil) ),
inference(forward_demodulation,[status(thm)],[f431,f436]) ).
fof(f486,plain,
( neq(sk1,nil)
| ~ neq(sk2,nil) ),
inference(forward_demodulation,[status(thm)],[f432,f485]) ).
fof(f487,plain,
~ frontsegP(sk2,sk1),
inference(backward_subsumption_resolution,[status(thm)],[f435,f488]) ).
fof(f488,plain,
neq(sk1,nil),
inference(forward_subsumption_resolution,[status(thm)],[f486,f433]) ).
fof(f516,plain,
( frontsegP(sk4,sk3)
| ~ neq(sk2,nil) ),
inference(forward_demodulation,[status(thm)],[f431,f437]) ).
fof(f517,plain,
( frontsegP(sk2,sk3)
| ~ neq(sk2,nil) ),
inference(forward_demodulation,[status(thm)],[f431,f516]) ).
fof(f518,plain,
( frontsegP(sk2,sk1)
| ~ neq(sk2,nil) ),
inference(forward_demodulation,[status(thm)],[f432,f517]) ).
fof(f520,plain,
frontsegP(sk2,sk1),
inference(forward_subsumption_resolution,[status(thm)],[f518,f433]) ).
fof(f521,plain,
$false,
inference(backward_subsumption_resolution,[status(thm)],[f487,f520]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SWC103-1 : TPTP v9.3.1. Released v2.4.0.
% 0.00/0.04 % Command : drodi -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.08/5.53 % Computer : n019.cluster.edu
% 0.08/5.53 % Model : x86_64 x86_64
% 0.08/5.53 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.08/5.53 % Memory : 8046.5625MB
% 0.08/5.53 % OS : Linux 6.8.0-71-generic
% 0.08/5.53 % CPULimit : 300
% 0.08/5.53 % WCLimit : 300
% 0.08/5.53 % DateTime : Mon Sep 21 07:56:13 UTC 2026
% 0.08/5.53 % CPUTime :
% 0.08/5.55 % Drodi V4.1.1
% 0.08/5.56 % Refutation found
% 0.08/5.56 % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.08/5.56 % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.08/5.59 % Elapsed time: 0.048266 seconds
% 0.08/5.59 % CPU time: 0.105824 seconds
% 0.08/5.59 % Total memory used: 34.014 MB
% 0.08/5.59 % Net memory used: 33.962 MB
%------------------------------------------------------------------------------