%------------------------------------------------------------------------------
% File : LisaST---0.9
% Problem : SWC097-1 : TPTP v9.3.1. Released v2.4.0.
% Transfm : none
% Format : tptp:raw
% Command : casc-portfolio.sh -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% Computer : n010.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 : Sun Sep 27 08:54:15 AM UTC 2026
% Result : Unsatisfiable 16.74s 7.56s
% Output : CNFRefutation 16.74s
% Verified :
% SZS Type : Refutation
% Derivation depth : 8
% Number of leaves : 6
% Syntax : Number of clauses : 23 ( 9 unt; 1 nHn; 23 RR)
% Number of literals : 40 ( 16 equ; 22 neg)
% Maximal clause size : 3 ( 1 avg)
% Maximal term depth : 3 ( 1 avg)
% Number of predicates : 4 ( 2 usr; 1 prp; 0-2 aty)
% Number of functors : 8 ( 8 usr; 6 con; 0-2 aty)
% Number of variables : 4 ( 0 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(co1_5,negated_conjecture,
sk2 = sk4 ).
cnf(co1_6,negated_conjecture,
sk1 = sk3 ).
cnf(co1_7,negated_conjecture,
( neq(sk2,nil)
| neq(sk2,nil) ) ).
cnf(co1_12,negated_conjecture,
( ~ neq(sk4,nil)
| app(sk1,cons(X0,nil)) != sk2
| ~ ssItem(X0) ) ).
cnf(co1_13,negated_conjecture,
( ~ neq(sk4,nil)
| ssItem(sk5) ) ).
cnf(co1_14,negated_conjecture,
( ~ neq(sk4,nil)
| app(sk3,cons(sk5,nil)) = sk4 ) ).
cnf(c4,plain,
sk2 = sk4,
inference(clausification,[status(esa)],[co1_5]) ).
cnf(c5,plain,
sk1 = sk3,
inference(clausification,[status(esa)],[co1_6]) ).
cnf(c6,plain,
neq(sk2,nil),
inference(clausification,[status(esa)],[co1_7]) ).
cnf(c11,plain,
( ~ neq(sk4,nil)
| app(sk1,cons(X0,nil)) != sk2
| ~ ssItem(X0) ),
inference(clausification,[status(esa)],[co1_12]) ).
cnf(c12,plain,
( ~ neq(sk4,nil)
| ssItem(sk5) ),
inference(clausification,[status(esa)],[co1_13]) ).
cnf(c13,plain,
( ~ neq(sk4,nil)
| app(sk3,cons(sk5,nil)) = sk4 ),
inference(clausification,[status(esa)],[co1_14]) ).
cnf(d0,plain,
( ~ ssItem(X0)
| ~ neq(sk2,nil)
| app(sk1,cons(X0,nil)) != sk2 ),
inference(demodulation,[status(thm)],[c11,c4]) ).
cnf(d1,plain,
( ~ ssItem(X0)
| app(sk1,cons(X0,nil)) != sk2 ),
inference(resolution,[status(thm)],[c6,d0]) ).
cnf(d2,plain,
( ~ neq(sk4,nil)
| app(sk1,cons(sk5,nil)) = sk4 ),
inference(demodulation,[status(thm)],[c13,c5]) ).
cnf(d3,plain,
( ~ neq(sk4,nil)
| app(sk1,cons(sk5,nil)) = sk2 ),
inference(demodulation,[status(thm)],[d2,c4]) ).
cnf(d4,plain,
( ~ neq(sk2,nil)
| app(sk1,cons(sk5,nil)) = sk2 ),
inference(demodulation,[status(thm)],[d3,c4]) ).
cnf(d5,plain,
app(sk1,cons(sk5,nil)) = sk2,
inference(resolution,[status(thm)],[c6,d4]) ).
cnf(d6,plain,
( ~ ssItem(sk5)
| sk2 != sk2 ),
inference(superposition,[status(thm)],[d5,d1]) ).
cnf(d7,plain,
( ssItem(sk5)
| ~ neq(sk2,nil) ),
inference(demodulation,[status(thm)],[c12,c4]) ).
cnf(d8,plain,
ssItem(sk5),
inference(resolution,[status(thm)],[c6,d7]) ).
cnf(d9,plain,
sk2 != sk2,
inference(resolution,[status(thm)],[d8,d6]) ).
cnf(d10,plain,
$false,
inference(equality_resolution,[status(thm)],[d9]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SWC097-1 : TPTP v9.3.1. Released v2.4.0.
% 0.00/0.04 % Command : casc-portfolio.sh -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.12/5.38 % Computer : n010.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 : Sat Sep 26 12:15:38 UTC 2026
% 0.12/5.38 % CPUTime :
% 0.12/5.38 Running casc-portfolio.sh -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 16.74/7.56 % SZS status Unsatisfiable for theBenchmark.p
% 16.74/7.56 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
%------------------------------------------------------------------------------