%------------------------------------------------------------------------------
% File : LisaST---0.9
% Problem : SWW400-1 : 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 : n014.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 24.04s 3.47s
% Output : CNFRefutation 24.04s
% Verified :
% SZS Type : Refutation
% Derivation depth : 8
% Number of leaves : 7
% Syntax : Number of clauses : 21 ( 13 unt; 6 nHn; 17 RR)
% Number of literals : 32 ( 14 equ; 10 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 : 7 ( 7 usr; 4 con; 0-2 aty)
% Number of variables : 27 ( 0 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(premise_2,hypothesis,
nil != x2 ).
cnf(premise_3,hypothesis,
heap(sep(next(x2,nil),sep(lseg(x1,x2),emp))) ).
cnf(conclusion_1,negated_conjecture,
~ heap(sep(lseg(x1,nil),emp)) ).
cnf(associative_commutative,axiom,
sep(X0,sep(X1,X2)) = sep(X1,sep(X0,X2)) ).
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(unfolding_3,axiom,
( heap(sep(lseg(X0,nil),X2))
| ~ heap(sep(lseg(X0,X1),sep(lseg(X1,nil),X2))) ) ).
cnf(c1,plain,
x2 != nil,
inference(clausification,[status(esa)],[premise_2]) ).
cnf(c2,plain,
heap(sep(next(x2,nil),sep(lseg(x1,x2),emp))),
inference(clausification,[status(esa)],[premise_3]) ).
cnf(c3,plain,
~ heap(sep(lseg(x1,nil),emp)),
inference(clausification,[status(esa)],[conclusion_1]) ).
cnf(c4,plain,
sep(X0,sep(X1,X2)) = sep(X1,sep(X0,X2)),
inference(clausification,[status(esa)],[associative_commutative]) ).
cnf(c5,plain,
sep(lseg(X0,X0),X1) = X1,
inference(clausification,[status(esa)],[normalization]) ).
cnf(c11,plain,
( heap(sep(lseg(X1,X2),X3))
| ~ heap(sep(next(X1,X0),sep(lseg(X0,X2),X3)))
| X0 = X1 ),
inference(clausification,[status(esa)],[unfolding_2]) ).
cnf(c12,plain,
( heap(sep(lseg(X0,nil),X2))
| ~ heap(sep(lseg(X0,X1),sep(lseg(X1,nil),X2))) ),
inference(clausification,[status(esa)],[unfolding_3]) ).
cnf(d0,plain,
( heap(sep(lseg(X2,X0),X1))
| X0 = X2
| ~ heap(sep(next(X2,X0),X1)) ),
inference(superposition,[status(thm)],[c5,c11]) ).
cnf(d1,plain,
( heap(sep(lseg(x2,nil),sep(lseg(x1,x2),emp)))
| nil = x2 ),
inference(resolution,[status(thm)],[d0,c2]) ).
cnf(d2,plain,
( heap(sep(lseg(x1,x2),sep(lseg(x2,nil),emp)))
| nil = x2 ),
inference(demodulation,[status(thm)],[d1,c4]) ).
cnf(d3,plain,
( heap(sep(lseg(x1,nil),emp))
| nil = x2 ),
inference(resolution,[status(thm)],[d2,c12]) ).
cnf(d4,plain,
nil = x2,
inference(resolution,[status(thm)],[c3,d3]) ).
cnf(d5,plain,
nil != nil,
inference(demodulation,[status(thm)],[c1,d4]) ).
cnf(d6,plain,
$false,
inference(equality_resolution,[status(thm)],[d5]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SWW400-1 : TPTP v9.3.1. Released v5.2.0.
% 0.00/0.04 % Command : casc-portfolio.sh -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.09/0.36 % Computer : n014.cluster.edu
% 0.09/0.36 % Model : x86_64 x86_64
% 0.09/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.36 % Memory : 8046.5625MB
% 0.09/0.36 % OS : Linux 6.8.0-71-generic
% 0.09/0.36 % CPULimit : 300
% 0.09/0.36 % WCLimit : 300
% 0.09/0.36 % DateTime : Sat Sep 26 15:49:01 UTC 2026
% 0.09/0.37 % CPUTime :
% 0.09/0.37 Running casc-portfolio.sh -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 24.04/3.47 % SZS status Unsatisfiable for theBenchmark.p
% 24.04/3.47 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
%------------------------------------------------------------------------------