%------------------------------------------------------------------------------
% File : Drodi---4.1.1
% Problem : SWC367-1 : TPTP v9.3.1. Released v2.4.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n026.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 02:40:57 PM UTC 2026
% Result : Unsatisfiable 0.10s 0.40s
% Output : CNFRefutation 0.10s
% Verified :
% SZS Type : Refutation
% Derivation depth : 8
% Number of leaves : 10
% Syntax : Number of formulae : 33 ( 12 unt; 3 def)
% Number of atoms : 59 ( 14 equ)
% Maximal formula atoms : 3 ( 1 avg)
% Number of connectives : 51 ( 25 ~; 23 |; 0 &)
% ( 3 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 4 ( 2 avg)
% Maximal term depth : 1 ( 1 avg)
% Number of predicates : 7 ( 5 usr; 4 prp; 0-2 aty)
% Number of functors : 5 ( 5 usr; 5 con; 0-0 aty)
% Number of variables : 2 ( 2 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f59,axiom,
! [U] :
( rearsegP(U,U)
| ~ ssList(U) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f189,negated_conjecture,
ssList(sk4),
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,
~ rearsegP(sk2,sk1),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f194,negated_conjecture,
( rearsegP(sk4,sk3)
| nil = sk4 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f196,negated_conjecture,
( rearsegP(sk4,sk3)
| nil = sk3 ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f255,plain,
! [X0] :
( rearsegP(X0,X0)
| ~ ssList(X0) ),
inference(cnf_transformation,[status(thm)],[f59]) ).
fof(f430,plain,
ssList(sk4),
inference(cnf_transformation,[status(thm)],[f189]) ).
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,
~ rearsegP(sk2,sk1),
inference(cnf_transformation,[status(thm)],[f192]) ).
fof(f435,plain,
( rearsegP(sk4,sk3)
| nil = sk4 ),
inference(cnf_transformation,[status(thm)],[f194]) ).
fof(f437,plain,
( rearsegP(sk4,sk3)
| nil = sk3 ),
inference(cnf_transformation,[status(thm)],[f196]) ).
fof(f445,definition,
( sQ2_spl
<=> nil = sk4 ),
introduced(definition,[new_symbols(definition,[sQ2_spl])],[split_symbol_definition]) ).
fof(f446,plain,
( ~ sQ2_spl
| nil = sk4 ),
inference(component_clause,[status(thm)],[f445]) ).
fof(f452,definition,
( sQ4_spl
<=> rearsegP(sk4,sk3) ),
introduced(definition,[new_symbols(definition,[sQ4_spl])],[split_symbol_definition]) ).
fof(f453,plain,
( ~ sQ4_spl
| rearsegP(sk4,sk3) ),
inference(component_clause,[status(thm)],[f452]) ).
fof(f455,plain,
( sQ4_spl
| sQ2_spl ),
inference(split_clause,[status(thm)],[f435,f445,f452]) ).
fof(f456,definition,
( sQ5_spl
<=> nil = sk3 ),
introduced(definition,[new_symbols(definition,[sQ5_spl])],[split_symbol_definition]) ).
fof(f457,plain,
( ~ sQ5_spl
| nil = sk3 ),
inference(component_clause,[status(thm)],[f456]) ).
fof(f460,plain,
( sQ4_spl
| sQ5_spl ),
inference(split_clause,[status(thm)],[f437,f456,f452]) ).
fof(f494,plain,
( ~ sQ2_spl
| ~ sQ5_spl
| sk1 = sk4 ),
inference(backward_demodulation,[status(thm)],[f496,f432]) ).
fof(f496,plain,
( ~ sQ2_spl
| ~ sQ5_spl
| sk3 = sk4 ),
inference(forward_demodulation,[status(thm)],[f457,f446]) ).
fof(f497,plain,
~ rearsegP(sk4,sk1),
inference(forward_demodulation,[status(thm)],[f431,f433]) ).
fof(f498,plain,
( ~ sQ2_spl
| ~ sQ5_spl
| ~ rearsegP(sk4,sk4) ),
inference(forward_demodulation,[status(thm)],[f494,f497]) ).
fof(f499,plain,
( ~ sQ2_spl
| ~ sQ5_spl
| ~ ssList(sk4) ),
inference(resolution,[status(thm)],[f255,f498]) ).
fof(f500,plain,
( ~ sQ2_spl
| ~ sQ5_spl
| $false ),
inference(forward_subsumption_resolution,[status(thm)],[f499,f430]) ).
fof(f501,plain,
( ~ sQ2_spl
| ~ sQ5_spl ),
inference(contradiction_clause,[status(thm)],[f500]) ).
fof(f502,plain,
~ rearsegP(sk4,sk3),
inference(forward_demodulation,[status(thm)],[f432,f497]) ).
fof(f503,plain,
( ~ sQ4_spl
| $false ),
inference(forward_subsumption_resolution,[status(thm)],[f502,f453]) ).
fof(f504,plain,
~ sQ4_spl,
inference(contradiction_clause,[status(thm)],[f503]) ).
fof(f505,plain,
$false,
inference(sat_refutation,[status(thm)],[f455,f460,f501,f504]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SWC367-1 : TPTP v9.3.1. Released v2.4.0.
% 0.00/0.04 % Command : drodi -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.10/0.36 % Computer : n026.cluster.edu
% 0.10/0.36 % Model : x86_64 x86_64
% 0.10/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.36 % Memory : 8046.5625MB
% 0.10/0.36 % OS : Linux 6.8.0-71-generic
% 0.10/0.36 % CPULimit : 300
% 0.10/0.36 % WCLimit : 300
% 0.10/0.36 % DateTime : Mon Sep 21 08:21:53 UTC 2026
% 0.10/0.36 % CPUTime :
% 0.10/0.38 % Drodi V4.1.1
% 0.10/0.40 % Refutation found
% 0.10/0.40 % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.10/0.40 % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.10/0.42 % Elapsed time: 0.053522 seconds
% 0.10/0.42 % CPU time: 0.137634 seconds
% 0.10/0.42 % Total memory used: 71.186 MB
% 0.10/0.42 % Net memory used: 71.077 MB
%------------------------------------------------------------------------------