%------------------------------------------------------------------------------
% File : LisaST---0.9
% Problem : GRP140-1 : TPTP v9.3.1. Bugfixed v1.2.1.
% Transfm : none
% Format : tptp:raw
% Command : casc-portfolio.sh -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n015.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 07:23:14 AM UTC 2026
% Result : Unsatisfiable 31.68s 10.51s
% Output : CNFRefutation 31.68s
% Verified :
% SZS Type : Refutation
% Derivation depth : 7
% Number of leaves : 7
% Syntax : Number of clauses : 23 ( 23 unt; 0 nHn; 11 RR)
% Number of literals : 23 ( 22 equ; 3 neg)
% Maximal clause size : 1 ( 1 avg)
% Maximal term depth : 3 ( 1 avg)
% Number of predicates : 2 ( 0 usr; 1 prp; 0-2 aty)
% Number of functors : 5 ( 5 usr; 3 con; 0-2 aty)
% Number of variables : 23 ( 3 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(ax_glb1c_1,hypothesis,
'greatest$ulower$ubound'(a,c) = c ).
cnf(ax_glb1c_2,hypothesis,
'greatest$ulower$ubound'(b,c) = c ).
cnf(prove_ax_glb1c,negated_conjecture,
'least$uupper$ubound'('greatest$ulower$ubound'(a,b),c) != 'greatest$ulower$ubound'(a,b) ).
cnf(symmetry_of_glb,axiom,
'greatest$ulower$ubound'(X0,X1) = 'greatest$ulower$ubound'(X1,X0) ).
cnf(symmetry_of_lub,axiom,
'least$uupper$ubound'(X0,X1) = 'least$uupper$ubound'(X1,X0) ).
cnf(associativity_of_glb,axiom,
'greatest$ulower$ubound'(X0,'greatest$ulower$ubound'(X1,X2)) = 'greatest$ulower$ubound'('greatest$ulower$ubound'(X0,X1),X2) ).
cnf(lub_absorbtion,axiom,
'least$uupper$ubound'(X0,'greatest$ulower$ubound'(X0,X1)) = X0 ).
cnf(c0,plain,
'greatest$ulower$ubound'(a,c) = c,
inference(clausification,[status(esa)],[ax_glb1c_1]) ).
cnf(c1,plain,
'greatest$ulower$ubound'(b,c) = c,
inference(clausification,[status(esa)],[ax_glb1c_2]) ).
cnf(c2,plain,
'least$uupper$ubound'('greatest$ulower$ubound'(a,b),c) != 'greatest$ulower$ubound'(a,b),
inference(clausification,[status(esa)],[prove_ax_glb1c]) ).
cnf(c6,plain,
'greatest$ulower$ubound'(X0,X1) = 'greatest$ulower$ubound'(X1,X0),
inference(clausification,[status(esa)],[symmetry_of_glb]) ).
cnf(c7,plain,
'least$uupper$ubound'(X0,X1) = 'least$uupper$ubound'(X1,X0),
inference(clausification,[status(esa)],[symmetry_of_lub]) ).
cnf(c8,plain,
'greatest$ulower$ubound'(X0,'greatest$ulower$ubound'(X1,X2)) = 'greatest$ulower$ubound'('greatest$ulower$ubound'(X0,X1),X2),
inference(clausification,[status(esa)],[associativity_of_glb]) ).
cnf(c12,plain,
'least$uupper$ubound'(X0,'greatest$ulower$ubound'(X0,X1)) = X0,
inference(clausification,[status(esa)],[lub_absorbtion]) ).
cnf(d0,plain,
'least$uupper$ubound'(X0,'greatest$ulower$ubound'(X1,X0)) = X0,
inference(superposition,[status(thm)],[c6,c12]) ).
cnf(d1,plain,
'greatest$ulower$ubound'(c,a) = c,
inference(demodulation,[status(thm)],[c0,c6]) ).
cnf(d2,plain,
'greatest$ulower$ubound'(c,'greatest$ulower$ubound'(a,X0)) = 'greatest$ulower$ubound'(c,X0),
inference(superposition,[status(thm)],[d1,c8]) ).
cnf(d3,plain,
'least$uupper$ubound'('greatest$ulower$ubound'(a,X0),'greatest$ulower$ubound'(c,X0)) = 'greatest$ulower$ubound'(a,X0),
inference(superposition,[status(thm)],[d2,d0]) ).
cnf(d4,plain,
'least$uupper$ubound'('greatest$ulower$ubound'(c,X0),'greatest$ulower$ubound'(a,X0)) = 'greatest$ulower$ubound'(a,X0),
inference(demodulation,[status(thm)],[d3,c7]) ).
cnf(d5,plain,
'greatest$ulower$ubound'(c,b) = c,
inference(demodulation,[status(thm)],[c1,c6]) ).
cnf(d6,plain,
'least$uupper$ubound'(c,'greatest$ulower$ubound'(a,b)) = 'greatest$ulower$ubound'(a,b),
inference(superposition,[status(thm)],[d5,d4]) ).
cnf(d7,plain,
'least$uupper$ubound'(c,'greatest$ulower$ubound'(a,b)) != 'greatest$ulower$ubound'(a,b),
inference(demodulation,[status(thm)],[c2,c7]) ).
cnf(d8,plain,
$false,
inference(resolution,[status(thm)],[d7,d6]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : GRP140-1 : TPTP v9.3.1. Bugfixed v1.2.1.
% 0.00/0.04 % Command : casc-portfolio.sh -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.10/0.36 % Computer : n015.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 : Fri Sep 25 14:34:42 UTC 2026
% 0.10/0.37 % CPUTime :
% 0.10/0.37 Running casc-portfolio.sh -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 31.68/10.51 % SZS status Unsatisfiable for theBenchmark.p
% 31.68/10.51 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
%------------------------------------------------------------------------------