%------------------------------------------------------------------------------
% File : LisaST---0.9
% Problem : SET016-1 : TPTP v9.3.1. Released v1.0.0.
% 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 08:31:35 AM UTC 2026
% Result : Unsatisfiable 16.04s 2.52s
% Output : CNFRefutation 16.04s
% Verified :
% SZS Type : Refutation
% Derivation depth : 11
% Number of leaves : 7
% Syntax : Number of clauses : 25 ( 17 unt; 6 nHn; 18 RR)
% Number of literals : 36 ( 22 equ; 8 neg)
% Maximal clause size : 3 ( 1 avg)
% Maximal term depth : 3 ( 1 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 : 25 ( 3 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(singleton_1,axiom,
member(X0,'singleton$uset'(X0)) ).
cnf(singleton_2,axiom,
( X0 = X1
| ~ member(X0,'singleton$uset'(X1)) ) ).
cnf(unordered_pair_1,axiom,
member(X0,'unordered$upair'(X0,X1)) ).
cnf(unordered_pair_3,axiom,
( X0 = X2
| X0 = X1
| ~ member(X0,'unordered$upair'(X1,X2)) ) ).
cnf(ordered_pair,axiom,
'ordered$upair'(X0,X1) = 'unordered$upair'('singleton$uset'(X0),'unordered$upair'(X0,X1)) ).
cnf(equal_ordered_pairs,hypothesis,
'ordered$upair'(m1,r1) = 'ordered$upair'(m2,r2) ).
cnf(prove_first_components_equal,negated_conjecture,
m1 != m2 ).
cnf(c0,plain,
member(X0,'singleton$uset'(X0)),
inference(clausification,[status(esa)],[singleton_1]) ).
cnf(c1,plain,
( X0 = X1
| ~ member(X0,'singleton$uset'(X1)) ),
inference(clausification,[status(esa)],[singleton_2]) ).
cnf(c2,plain,
member(X0,'unordered$upair'(X0,X1)),
inference(clausification,[status(esa)],[unordered_pair_1]) ).
cnf(c4,plain,
( X0 = X2
| X0 = X1
| ~ member(X0,'unordered$upair'(X1,X2)) ),
inference(clausification,[status(esa)],[unordered_pair_3]) ).
cnf(c5,plain,
'ordered$upair'(X0,X1) = 'unordered$upair'('singleton$uset'(X0),'unordered$upair'(X0,X1)),
inference(clausification,[status(esa)],[ordered_pair]) ).
cnf(c6,plain,
'ordered$upair'(m1,r1) = 'ordered$upair'(m2,r2),
inference(clausification,[status(esa)],[equal_ordered_pairs]) ).
cnf(c7,plain,
m1 != m2,
inference(clausification,[status(esa)],[prove_first_components_equal]) ).
cnf(d0,plain,
member('singleton$uset'(X0),'ordered$upair'(X0,X1)),
inference(superposition,[status(thm)],[c5,c2]) ).
cnf(d1,plain,
member('singleton$uset'(m2),'ordered$upair'(m1,r1)),
inference(superposition,[status(thm)],[c6,d0]) ).
cnf(d2,plain,
( X2 = 'singleton$uset'(X0)
| X2 = 'unordered$upair'(X0,X1)
| ~ member(X2,'ordered$upair'(X0,X1)) ),
inference(superposition,[status(thm)],[c5,c4]) ).
cnf(d3,plain,
( 'singleton$uset'(m2) = 'unordered$upair'(m1,r1)
| 'singleton$uset'(m2) = 'singleton$uset'(m1) ),
inference(resolution,[status(thm)],[d2,d1]) ).
cnf(d4,plain,
( 'singleton$uset'(m2) = 'singleton$uset'(m1)
| member(m1,'singleton$uset'(m2)) ),
inference(superposition,[status(thm)],[d3,c2]) ).
cnf(d5,plain,
( m1 = m2
| 'singleton$uset'(m2) = 'singleton$uset'(m1) ),
inference(resolution,[status(thm)],[d4,c1]) ).
cnf(d6,plain,
'singleton$uset'(m2) = 'singleton$uset'(m1),
inference(resolution,[status(thm)],[c7,d5]) ).
cnf(d7,plain,
member(m2,'singleton$uset'(m1)),
inference(superposition,[status(thm)],[d6,c0]) ).
cnf(d8,plain,
m2 = m1,
inference(resolution,[status(thm)],[d7,c1]) ).
cnf(d9,plain,
m1 != m1,
inference(demodulation,[status(thm)],[c7,d8]) ).
cnf(d10,plain,
$false,
inference(equality_resolution,[status(thm)],[d9]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.05 % Problem : SET016-1 : TPTP v9.3.1. Released v1.0.0.
% 0.00/0.06 % Command : casc-portfolio.sh -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.18/0.44 % Computer : n009.cluster.edu
% 0.18/0.44 % Model : x86_64 x86_64
% 0.18/0.44 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.18/0.44 % Memory : 8046.5625MB
% 0.18/0.44 % OS : Linux 6.8.0-71-generic
% 0.18/0.44 % CPULimit : 300
% 0.18/0.44 % WCLimit : 300
% 0.18/0.44 % DateTime : Sat Sep 26 06:50:45 UTC 2026
% 0.18/0.44 % CPUTime :
% 0.18/0.44 Running casc-portfolio.sh -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 16.04/2.52 % SZS status Unsatisfiable for theBenchmark.p
% 16.04/2.52 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
%------------------------------------------------------------------------------