%------------------------------------------------------------------------------
% File : LisaST---0.9
% Problem : SYN347-1 : TPTP v9.3.1. Bugfixed v1.2.1.
% Transfm : none
% Format : tptp:raw
% Command : casc-portfolio.sh -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% Computer : n009.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 09:21:54 AM UTC 2026
% Result : Unsatisfiable 8.76s 1.58s
% Output : CNFRefutation 8.76s
% Verified :
% SZS Type : Refutation
% Derivation depth : 8
% Number of leaves : 6
% Syntax : Number of clauses : 22 ( 4 unt; 10 nHn; 16 RR)
% Number of literals : 50 ( 0 equ; 24 neg)
% Maximal clause size : 3 ( 2 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of predicates : 2 ( 1 usr; 1 prp; 0-2 aty)
% Number of functors : 3 ( 3 usr; 2 con; 0-2 aty)
% Number of variables : 29 ( 0 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(clause1,negated_conjecture,
( f(a,b)
| ~ f(X1,y(X0,X1))
| f(X0,y(X0,X1)) ) ).
cnf(clause2,negated_conjecture,
( f(a,b)
| f(X1,y(X0,X1))
| ~ f(X0,y(X0,X1)) ) ).
cnf(clause3,negated_conjecture,
( ~ f(a,b)
| ~ f(X1,y(X0,X1))
| ~ f(X0,y(X0,X1)) ) ).
cnf(clause4,negated_conjecture,
( ~ f(a,b)
| f(X1,y(X0,X1))
| f(X0,y(X0,X1)) ) ).
cnf(clause5,negated_conjecture,
( f(b,y(X0,X1))
| f(a,y(X0,X1)) ) ).
cnf(clause6,negated_conjecture,
( ~ f(b,y(X0,X1))
| ~ f(a,y(X0,X1)) ) ).
cnf(c0,plain,
( f(a,b)
| ~ f(X1,y(X0,X1))
| f(X0,y(X0,X1)) ),
inference(clausification,[status(esa)],[clause1]) ).
cnf(c1,plain,
( f(a,b)
| f(X1,y(X0,X1))
| ~ f(X0,y(X0,X1)) ),
inference(clausification,[status(esa)],[clause2]) ).
cnf(c2,plain,
( ~ f(a,b)
| ~ f(X1,y(X0,X1))
| ~ f(X0,y(X0,X1)) ),
inference(clausification,[status(esa)],[clause3]) ).
cnf(c3,plain,
( ~ f(a,b)
| f(X1,y(X0,X1))
| f(X0,y(X0,X1)) ),
inference(clausification,[status(esa)],[clause4]) ).
cnf(c4,plain,
( f(b,y(X0,X1))
| f(a,y(X0,X1)) ),
inference(clausification,[status(esa)],[clause5]) ).
cnf(c5,plain,
( ~ f(b,y(X0,X1))
| ~ f(a,y(X0,X1)) ),
inference(clausification,[status(esa)],[clause6]) ).
cnf(d0,plain,
( f(a,y(b,X0))
| f(a,b)
| f(X0,y(b,X0)) ),
inference(resolution,[status(thm)],[c1,c4]) ).
cnf(d1,plain,
( f(a,b)
| f(a,y(b,a)) ),
inference(factoring,[status(thm)],[d0]) ).
cnf(d2,plain,
( ~ f(a,b)
| f(X0,y(X0,X0)) ),
inference(factoring,[status(thm)],[c3]) ).
cnf(d3,plain,
( ~ f(a,b)
| ~ f(X0,y(X0,X0))
| ~ f(a,b) ),
inference(resolution,[status(thm)],[d2,c2]) ).
cnf(d4,plain,
( ~ f(a,b)
| ~ f(a,b) ),
inference(resolution,[status(thm)],[d3,d2]) ).
cnf(d5,plain,
f(a,y(b,a)),
inference(resolution,[status(thm)],[d4,d1]) ).
cnf(d6,plain,
( ~ f(X1,y(X0,X1))
| f(X0,y(X0,X1)) ),
inference(resolution,[status(thm)],[d4,c0]) ).
cnf(d7,plain,
f(b,y(b,a)),
inference(resolution,[status(thm)],[d6,d5]) ).
cnf(d8,plain,
~ f(a,y(b,a)),
inference(resolution,[status(thm)],[d7,c5]) ).
cnf(d9,plain,
$false,
inference(resolution,[status(thm)],[d5,d8]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SYN347-1 : TPTP v9.3.1. Bugfixed v1.2.1.
% 0.00/0.04 % Command : casc-portfolio.sh -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.10/0.36 % Computer : n009.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
% 0.10/0.37 % CPULimit : 300
% 0.10/0.37 % WCLimit : 300
% 0.10/0.37 % DateTime : Sat Sep 26 17:36:59 UTC 2026
% 0.10/0.37 % CPUTime :
% 0.10/0.37 Running casc-portfolio.sh -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 8.76/1.58 % SZS status Unsatisfiable for theBenchmark.p
% 8.76/1.58 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
%------------------------------------------------------------------------------