%------------------------------------------------------------------------------
% File : LisaST---0.9
% Problem : SET260-6 : TPTP v9.3.1. Bugfixed v2.1.0.
% Transfm : none
% Format : tptp:raw
% Command : casc-portfolio.sh -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n001.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 08:32:24 AM UTC 2026
% Result : Unsatisfiable 188.00s 49.31s
% Output : CNFRefutation 188.00s
% Verified :
% SZS Type : Refutation
% Derivation depth : 16
% Number of leaves : 18
% Syntax : Number of clauses : 59 ( 21 unt; 12 nHn; 40 RR)
% Number of literals : 109 ( 24 equ; 50 neg)
% Maximal clause size : 3 ( 1 avg)
% Maximal term depth : 3 ( 1 avg)
% Number of predicates : 4 ( 2 usr; 1 prp; 0-2 aty)
% Number of functors : 14 ( 14 usr; 5 con; 0-3 aty)
% Number of variables : 96 ( 19 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(prove_domain_alternate_defn3_1,negated_conjecture,
member('ordered$upair'(x,y),xr) ).
cnf(prove_domain_alternate_defn3_2,negated_conjecture,
member('ordered$upair'(x,y),'cross$uproduct'('universal$uclass','universal$uclass')) ).
cnf(prove_domain_alternate_defn3_3,negated_conjecture,
~ member(x,'domain$uof'(xr)) ).
cnf(not_subclass_members1,axiom,
( subclass(X0,X1)
| member('not$usubclass$uelement'(X0,X1),X0) ) ).
cnf(not_subclass_members2,axiom,
( subclass(X0,X1)
| ~ member('not$usubclass$uelement'(X0,X1),X1) ) ).
cnf(subclass_implies_equal,axiom,
( X0 = X1
| ~ subclass(X1,X0)
| ~ subclass(X0,X1) ) ).
cnf(unordered_pair3,axiom,
( member(X0,'unordered$upair'(X1,X0))
| ~ member(X0,'universal$uclass') ) ).
cnf(singleton_set,axiom,
'unordered$upair'(X0,X0) = singleton(X0) ).
cnf(cartesian_product1,axiom,
( member(X0,X2)
| ~ member('ordered$upair'(X0,X1),'cross$uproduct'(X2,X3)) ) ).
cnf(cartesian_product2,axiom,
( member(X1,X3)
| ~ member('ordered$upair'(X0,X1),'cross$uproduct'(X2,X3)) ) ).
cnf(cartesian_product3,axiom,
( member('ordered$upair'(X0,X2),'cross$uproduct'(X1,X3))
| ~ member(X2,X3)
| ~ member(X0,X1) ) ).
cnf(intersection1,axiom,
( member(X0,X1)
| ~ member(X0,intersection(X1,X2)) ) ).
cnf(intersection3,axiom,
( member(X0,intersection(X1,X2))
| ~ member(X0,X2)
| ~ member(X0,X1) ) ).
cnf(restriction1,axiom,
intersection(X0,'cross$uproduct'(X1,X2)) = restrict(X0,X1,X2) ).
cnf(domain1,axiom,
( ~ member(X1,'domain$uof'(X0))
| restrict(X0,singleton(X1),'universal$uclass') != 'null$uclass' ) ).
cnf(domain2,axiom,
( member(X0,'domain$uof'(X1))
| restrict(X1,singleton(X0),'universal$uclass') = 'null$uclass'
| ~ member(X0,'universal$uclass') ) ).
cnf(regularity1,axiom,
( member(regular(X0),X0)
| X0 = 'null$uclass' ) ).
cnf(regularity2,axiom,
( intersection(X0,regular(X0)) = 'null$uclass'
| X0 = 'null$uclass' ) ).
cnf(c0,plain,
member('ordered$upair'(x,y),xr),
inference(clausification,[status(esa)],[prove_domain_alternate_defn3_1]) ).
cnf(c1,plain,
member('ordered$upair'(x,y),'cross$uproduct'('universal$uclass','universal$uclass')),
inference(clausification,[status(esa)],[prove_domain_alternate_defn3_2]) ).
cnf(c2,plain,
~ member(x,'domain$uof'(xr)),
inference(clausification,[status(esa)],[prove_domain_alternate_defn3_3]) ).
cnf(c4,plain,
( subclass(X0,X1)
| member('not$usubclass$uelement'(X0,X1),X0) ),
inference(clausification,[status(esa)],[not_subclass_members1]) ).
cnf(c5,plain,
( subclass(X0,X1)
| ~ member('not$usubclass$uelement'(X0,X1),X1) ),
inference(clausification,[status(esa)],[not_subclass_members2]) ).
cnf(c9,plain,
( X0 = X1
| ~ subclass(X1,X0)
| ~ subclass(X0,X1) ),
inference(clausification,[status(esa)],[subclass_implies_equal]) ).
cnf(c12,plain,
( member(X0,'unordered$upair'(X1,X0))
| ~ member(X0,'universal$uclass') ),
inference(clausification,[status(esa)],[unordered_pair3]) ).
cnf(c14,plain,
'unordered$upair'(X0,X0) = singleton(X0),
inference(clausification,[status(esa)],[singleton_set]) ).
cnf(c16,plain,
( member(X0,X2)
| ~ member('ordered$upair'(X0,X1),'cross$uproduct'(X2,X3)) ),
inference(clausification,[status(esa)],[cartesian_product1]) ).
cnf(c17,plain,
( member(X1,X3)
| ~ member('ordered$upair'(X0,X1),'cross$uproduct'(X2,X3)) ),
inference(clausification,[status(esa)],[cartesian_product2]) ).
cnf(c18,plain,
( member('ordered$upair'(X0,X2),'cross$uproduct'(X1,X3))
| ~ member(X2,X3)
| ~ member(X0,X1) ),
inference(clausification,[status(esa)],[cartesian_product3]) ).
cnf(c23,plain,
( member(X0,X1)
| ~ member(X0,intersection(X1,X2)) ),
inference(clausification,[status(esa)],[intersection1]) ).
cnf(c25,plain,
( member(X0,intersection(X1,X2))
| ~ member(X0,X2)
| ~ member(X0,X1) ),
inference(clausification,[status(esa)],[intersection3]) ).
cnf(c30,plain,
intersection(X0,'cross$uproduct'(X1,X2)) = restrict(X0,X1,X2),
inference(clausification,[status(esa)],[restriction1]) ).
cnf(c32,plain,
( ~ member(X1,'domain$uof'(X0))
| restrict(X0,singleton(X1),'universal$uclass') != 'null$uclass' ),
inference(clausification,[status(esa)],[domain1]) ).
cnf(c33,plain,
( member(X0,'domain$uof'(X1))
| restrict(X1,singleton(X0),'universal$uclass') = 'null$uclass'
| ~ member(X0,'universal$uclass') ),
inference(clausification,[status(esa)],[domain2]) ).
cnf(c68,plain,
( member(regular(X0),X0)
| X0 = 'null$uclass' ),
inference(clausification,[status(esa)],[regularity1]) ).
cnf(c69,plain,
( intersection(X0,regular(X0)) = 'null$uclass'
| X0 = 'null$uclass' ),
inference(clausification,[status(esa)],[regularity2]) ).
cnf(d0,plain,
( ~ member(X0,'universal$uclass')
| member(X0,singleton(X0)) ),
inference(superposition,[status(thm)],[c14,c12]) ).
cnf(d1,plain,
( ~ member(X3,'cross$uproduct'(X1,X2))
| ~ member(X3,X0)
| member(X3,restrict(X0,X1,X2)) ),
inference(superposition,[status(thm)],[c30,c25]) ).
cnf(d2,plain,
( ~ member(x,'universal$uclass')
| restrict(xr,singleton(x),'universal$uclass') = 'null$uclass' ),
inference(resolution,[status(thm)],[c33,c2]) ).
cnf(d3,plain,
member(x,'universal$uclass'),
inference(resolution,[status(thm)],[c16,c1]) ).
cnf(d4,plain,
restrict(xr,singleton(x),'universal$uclass') = 'null$uclass',
inference(resolution,[status(thm)],[d3,d2]) ).
cnf(d5,plain,
( ~ member(X0,'cross$uproduct'(singleton(x),'universal$uclass'))
| ~ member(X0,xr)
| member(X0,'null$uclass') ),
inference(superposition,[status(thm)],[d4,d1]) ).
cnf(d6,plain,
( subclass(intersection(X0,X1),X2)
| member('not$usubclass$uelement'(intersection(X0,X1),X2),X0) ),
inference(resolution,[status(thm)],[c23,c4]) ).
cnf(d7,plain,
( subclass(intersection(X0,X1),X0)
| subclass(intersection(X0,X1),X0) ),
inference(resolution,[status(thm)],[d6,c5]) ).
cnf(d8,plain,
subclass(restrict(X0,X1,X2),X0),
inference(superposition,[status(thm)],[c30,d7]) ).
cnf(d9,plain,
( X0 = 'null$uclass'
| subclass('null$uclass',X0) ),
inference(superposition,[status(thm)],[c69,d7]) ).
cnf(d10,plain,
( ~ subclass(X0,'null$uclass')
| X0 = 'null$uclass'
| X0 = 'null$uclass' ),
inference(resolution,[status(thm)],[d9,c9]) ).
cnf(d11,plain,
restrict('null$uclass',X0,X1) = 'null$uclass',
inference(resolution,[status(thm)],[d10,d8]) ).
cnf(d12,plain,
( ~ member(X0,'domain$uof'('null$uclass'))
| 'null$uclass' != 'null$uclass' ),
inference(superposition,[status(thm)],[d11,c32]) ).
cnf(d13,plain,
~ member(X0,'domain$uof'('null$uclass')),
inference(equality_resolution,[status(thm)],[d12]) ).
cnf(d14,plain,
'domain$uof'('null$uclass') = 'null$uclass',
inference(resolution,[status(thm)],[d13,c68]) ).
cnf(d15,plain,
~ member(X0,'null$uclass'),
inference(demodulation,[status(thm)],[d13,d14]) ).
cnf(d16,plain,
( ~ member(X0,'cross$uproduct'(singleton(x),'universal$uclass'))
| ~ member(X0,xr) ),
inference(resolution,[status(thm)],[d15,d5]) ).
cnf(d17,plain,
( ~ member(X0,singleton(x))
| ~ member(X1,'universal$uclass')
| ~ member('ordered$upair'(X0,X1),xr) ),
inference(resolution,[status(thm)],[d16,c18]) ).
cnf(d18,plain,
( ~ member(x,singleton(x))
| ~ member(y,'universal$uclass') ),
inference(resolution,[status(thm)],[d17,c0]) ).
cnf(d19,plain,
member(y,'universal$uclass'),
inference(resolution,[status(thm)],[c17,c1]) ).
cnf(d20,plain,
~ member(x,singleton(x)),
inference(resolution,[status(thm)],[d19,d18]) ).
cnf(d21,plain,
~ member(x,'universal$uclass'),
inference(resolution,[status(thm)],[d20,d0]) ).
cnf(d22,plain,
$false,
inference(resolution,[status(thm)],[d3,d21]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : SET260-6 : TPTP v9.3.1. Bugfixed v2.1.0.
% 0.00/0.04 % Command : casc-portfolio.sh -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.10/0.37 % Computer : n001.cluster.edu
% 0.10/0.37 % Model : x86_64 x86_64
% 0.10/0.37 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.37 % Memory : 8046.5625MB
% 0.10/0.37 % 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 07:30:12 UTC 2026
% 0.10/0.37 % CPUTime :
% 0.10/0.37 Running casc-portfolio.sh -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 188.00/49.31 % SZS status Unsatisfiable for theBenchmark.p
% 188.00/49.31 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
%------------------------------------------------------------------------------