%------------------------------------------------------------------------------
% File : LisaST---0.9
% Problem : SWW399-1 : TPTP v9.3.1. Released v5.2.0.
% Transfm : none
% Format : tptp:raw
% Command : casc-portfolio.sh -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% Computer : n007.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 09:11:49 AM UTC 2026
% Result : Unsatisfiable 11.70s 3.36s
% Output : CNFRefutation 11.70s
% Verified :
% SZS Type : Refutation
% Derivation depth : 6
% Number of leaves : 5
% Syntax : Number of clauses : 15 ( 11 unt; 4 nHn; 13 RR)
% Number of literals : 22 ( 10 equ; 8 neg)
% Maximal clause size : 3 ( 1 avg)
% Maximal term depth : 4 ( 2 avg)
% Number of predicates : 3 ( 1 usr; 1 prp; 0-2 aty)
% Number of functors : 6 ( 6 usr; 3 con; 0-2 aty)
% Number of variables : 15 ( 0 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(premise_1,hypothesis,
nil != x1 ).
cnf(premise_2,hypothesis,
heap(sep(next(x1,nil),emp)) ).
cnf(conclusion_1,negated_conjecture,
~ heap(sep(lseg(x1,nil),emp)) ).
cnf(normalization,axiom,
sep(lseg(X0,X0),X1) = X1 ).
cnf(unfolding_2,axiom,
( heap(sep(lseg(X0,X2),X3))
| X0 = X1
| ~ heap(sep(next(X0,X1),sep(lseg(X1,X2),X3))) ) ).
cnf(c0,plain,
nil != x1,
inference(clausification,[status(esa)],[premise_1]) ).
cnf(c1,plain,
heap(sep(next(x1,nil),emp)),
inference(clausification,[status(esa)],[premise_2]) ).
cnf(c2,plain,
~ heap(sep(lseg(x1,nil),emp)),
inference(clausification,[status(esa)],[conclusion_1]) ).
cnf(c4,plain,
sep(lseg(X0,X0),X1) = X1,
inference(clausification,[status(esa)],[normalization]) ).
cnf(c10,plain,
( heap(sep(lseg(X0,X2),X3))
| X0 = X1
| ~ heap(sep(next(X0,X1),sep(lseg(X1,X2),X3))) ),
inference(clausification,[status(esa)],[unfolding_2]) ).
cnf(d0,plain,
( heap(sep(lseg(X2,X0),X1))
| X2 = X0
| ~ heap(sep(next(X2,X0),X1)) ),
inference(superposition,[status(thm)],[c4,c10]) ).
cnf(d1,plain,
( heap(sep(lseg(x1,nil),emp))
| x1 = nil ),
inference(resolution,[status(thm)],[d0,c1]) ).
cnf(d2,plain,
x1 = nil,
inference(resolution,[status(thm)],[c2,d1]) ).
cnf(d3,plain,
nil != nil,
inference(demodulation,[status(thm)],[c0,d2]) ).
cnf(d4,plain,
$false,
inference(equality_resolution,[status(thm)],[d3]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.04 % Problem : SWW399-1 : TPTP v9.3.1. Released v5.2.0.
% 0.00/0.06 % Command : casc-portfolio.sh -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.10/0.44 % Computer : n007.cluster.edu
% 0.10/0.44 % Model : x86_64 x86_64
% 0.10/0.44 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.44 % Memory : 8046.5625MB
% 0.10/0.44 % OS : Linux 6.8.0-71-generic
% 0.10/0.44 % CPULimit : 300
% 0.10/0.44 % WCLimit : 300
% 0.10/0.44 % DateTime : Sat Sep 26 15:46:54 UTC 2026
% 0.10/0.44 % CPUTime :
% 0.10/0.44 Running casc-portfolio.sh -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 11.70/3.36 % SZS status Unsatisfiable for theBenchmark.p
% 11.70/3.36 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
%------------------------------------------------------------------------------