%------------------------------------------------------------------------------
% File : LisaST---0.9
% Problem : SET845-2 : TPTP v9.3.1. Released v3.2.0.
% Transfm : none
% Format : tptp:raw
% Command : casc-portfolio.sh -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n006.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 08:33:23 AM UTC 2026
% Result : Unsatisfiable 10.87s 2.92s
% Output : CNFRefutation 10.87s
% Verified :
% SZS Type : Refutation
% Derivation depth : 6
% Number of leaves : 7
% Syntax : Number of clauses : 20 ( 10 unt; 0 nHn; 18 RR)
% Number of literals : 32 ( 8 equ; 15 neg)
% Maximal clause size : 3 ( 1 avg)
% Maximal term depth : 3 ( 1 avg)
% Number of predicates : 4 ( 2 usr; 1 prp; 0-3 aty)
% Number of functors : 7 ( 7 usr; 3 con; 0-3 aty)
% Number of variables : 29 ( 2 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(cls_Set_OUnion__upper_0,axiom,
( 'c$ulessequals'(X0,'c$uUnion'(X1,X2),'tc$uset'(X2))
| ~ 'c$uin'(X0,X1,'tc$uset'(X2)) ) ).
cnf(cls_Set_Osubset__antisym_0,axiom,
( X1 = X0
| ~ 'c$ulessequals'(X1,X0,'tc$uset'(X2))
| ~ 'c$ulessequals'(X0,X1,'tc$uset'(X2)) ) ).
cnf(cls_Zorn_OAbrial__axiom1_0,axiom,
'c$ulessequals'(X0,'c$uZorn$uOsucc'(X1,X0,X2),'tc$uset'('tc$uset'(X2))) ).
cnf(cls_Zorn_OTFin_OsuccI_0,axiom,
( 'c$uin'('c$uZorn$uOsucc'(X1,X0,X2),'c$uZorn$uOTFin'(X1,X2),'tc$uset'('tc$uset'(X2)))
| ~ 'c$uin'(X0,'c$uZorn$uOTFin'(X1,X2),'tc$uset'('tc$uset'(X2))) ) ).
cnf(cls_conjecture_0,negated_conjecture,
'c$uin'('v$um','c$uZorn$uOTFin'('v$uS','t$ua'),'tc$uset'('tc$uset'('t$ua'))) ).
cnf(cls_conjecture_1,negated_conjecture,
'v$um' = 'c$uUnion'('c$uZorn$uOTFin'('v$uS','t$ua'),'tc$uset'('t$ua')) ).
cnf(cls_conjecture_2,negated_conjecture,
'v$um' != 'c$uZorn$uOsucc'('v$uS','v$um','t$ua') ).
cnf(c0,plain,
( 'c$ulessequals'(X0,'c$uUnion'(X1,X2),'tc$uset'(X2))
| ~ 'c$uin'(X0,X1,'tc$uset'(X2)) ),
inference(clausification,[status(esa)],[cls_Set_OUnion__upper_0]) ).
cnf(c1,plain,
( X1 = X0
| ~ 'c$ulessequals'(X1,X0,'tc$uset'(X2))
| ~ 'c$ulessequals'(X0,X1,'tc$uset'(X2)) ),
inference(clausification,[status(esa)],[cls_Set_Osubset__antisym_0]) ).
cnf(c2,plain,
'c$ulessequals'(X0,'c$uZorn$uOsucc'(X1,X0,X2),'tc$uset'('tc$uset'(X2))),
inference(clausification,[status(esa)],[cls_Zorn_OAbrial__axiom1_0]) ).
cnf(c3,plain,
( 'c$uin'('c$uZorn$uOsucc'(X1,X0,X2),'c$uZorn$uOTFin'(X1,X2),'tc$uset'('tc$uset'(X2)))
| ~ 'c$uin'(X0,'c$uZorn$uOTFin'(X1,X2),'tc$uset'('tc$uset'(X2))) ),
inference(clausification,[status(esa)],[cls_Zorn_OTFin_OsuccI_0]) ).
cnf(c4,plain,
'c$uin'('v$um','c$uZorn$uOTFin'('v$uS','t$ua'),'tc$uset'('tc$uset'('t$ua'))),
inference(clausification,[status(esa)],[cls_conjecture_0]) ).
cnf(c5,plain,
'v$um' = 'c$uUnion'('c$uZorn$uOTFin'('v$uS','t$ua'),'tc$uset'('t$ua')),
inference(clausification,[status(esa)],[cls_conjecture_1]) ).
cnf(c6,plain,
'v$um' != 'c$uZorn$uOsucc'('v$uS','v$um','t$ua'),
inference(clausification,[status(esa)],[cls_conjecture_2]) ).
cnf(d0,plain,
( ~ 'c$ulessequals'('c$uZorn$uOsucc'(X1,X0,X2),X0,'tc$uset'('tc$uset'(X2)))
| X0 = 'c$uZorn$uOsucc'(X1,X0,X2) ),
inference(resolution,[status(thm)],[c2,c1]) ).
cnf(d1,plain,
( ~ 'c$uin'(X0,'c$uZorn$uOTFin'('v$uS','t$ua'),'tc$uset'('tc$uset'('t$ua')))
| 'c$ulessequals'(X0,'v$um','tc$uset'('tc$uset'('t$ua'))) ),
inference(superposition,[status(thm)],[c5,c0]) ).
cnf(d2,plain,
( 'c$ulessequals'('c$uZorn$uOsucc'('v$uS',X0,'t$ua'),'v$um','tc$uset'('tc$uset'('t$ua')))
| ~ 'c$uin'(X0,'c$uZorn$uOTFin'('v$uS','t$ua'),'tc$uset'('tc$uset'('t$ua'))) ),
inference(resolution,[status(thm)],[c3,d1]) ).
cnf(d3,plain,
( 'v$um' = 'c$uZorn$uOsucc'('v$uS','v$um','t$ua')
| ~ 'c$uin'('v$um','c$uZorn$uOTFin'('v$uS','t$ua'),'tc$uset'('tc$uset'('t$ua'))) ),
inference(resolution,[status(thm)],[d2,d0]) ).
cnf(d4,plain,
~ 'c$uin'('v$um','c$uZorn$uOTFin'('v$uS','t$ua'),'tc$uset'('tc$uset'('t$ua'))),
inference(resolution,[status(thm)],[c6,d3]) ).
cnf(d5,plain,
$false,
inference(resolution,[status(thm)],[c4,d4]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : SET845-2 : TPTP v9.3.1. Released v3.2.0.
% 0.00/0.04 % Command : casc-portfolio.sh -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.08/0.35 % Computer : n006.cluster.edu
% 0.08/0.35 % Model : x86_64 x86_64
% 0.08/0.35 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.08/0.35 % Memory : 8046.5625MB
% 0.08/0.35 % OS : Linux 6.8.0-71-generic
% 0.08/0.35 % CPULimit : 300
% 0.08/0.35 % WCLimit : 300
% 0.08/0.35 % DateTime : Sat Sep 26 08:20:55 UTC 2026
% 0.08/0.35 % CPUTime :
% 0.08/0.35 Running casc-portfolio.sh -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 10.87/2.92 % SZS status Unsatisfiable for theBenchmark.p
% 10.87/2.92 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
%------------------------------------------------------------------------------