%------------------------------------------------------------------------------
% File : LisaST---0.9
% Problem : FLD060-1 : 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 : 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 07:10:57 AM UTC 2026
% Result : Unsatisfiable 42.27s 19.12s
% Output : CNFRefutation 42.27s
% Verified :
% SZS Type : Refutation
% Derivation depth : 8
% Number of leaves : 8
% Syntax : Number of clauses : 24 ( 10 unt; 0 nHn; 24 RR)
% Number of literals : 59 ( 0 equ; 40 neg)
% Maximal clause size : 6 ( 2 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of predicates : 4 ( 3 usr; 1 prp; 0-2 aty)
% Number of functors : 3 ( 3 usr; 2 con; 0-2 aty)
% Number of variables : 36 ( 0 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(a_is_defined,hypothesis,
defined(a) ).
cnf(b_is_defined,hypothesis,
defined(b) ).
cnf(less_or_equal_3,negated_conjecture,
'less$uor$uequal'(a,b) ).
cnf(not_less_or_equal_4,negated_conjecture,
~ 'less$uor$uequal'(add(a,a),add(b,b)) ).
cnf(commutativity_addition,axiom,
( ~ defined(X1)
| ~ defined(X0)
| equalish(add(X0,X1),add(X1,X0)) ) ).
cnf(transitivity_of_order_relation,axiom,
( ~ 'less$uor$uequal'(X2,X1)
| ~ 'less$uor$uequal'(X0,X2)
| 'less$uor$uequal'(X0,X1) ) ).
cnf(compatibility_of_order_relation_and_addition,axiom,
( ~ 'less$uor$uequal'(X0,X2)
| ~ defined(X1)
| 'less$uor$uequal'(add(X0,X1),add(X2,X1)) ) ).
cnf(compatibility_of_equality_and_order_relation,axiom,
( ~ equalish(X2,X0)
| ~ 'less$uor$uequal'(X2,X1)
| 'less$uor$uequal'(X0,X1) ) ).
cnf(c0,plain,
defined(a),
inference(clausification,[status(esa)],[a_is_defined]) ).
cnf(c1,plain,
defined(b),
inference(clausification,[status(esa)],[b_is_defined]) ).
cnf(c2,plain,
'less$uor$uequal'(a,b),
inference(clausification,[status(esa)],[less_or_equal_3]) ).
cnf(c3,plain,
~ 'less$uor$uequal'(add(a,a),add(b,b)),
inference(clausification,[status(esa)],[not_less_or_equal_4]) ).
cnf(c7,plain,
( ~ defined(X1)
| equalish(add(X0,X1),add(X1,X0))
| ~ defined(X0) ),
inference(clausification,[status(esa)],[commutativity_addition]) ).
cnf(c20,plain,
( ~ 'less$uor$uequal'(X1,X2)
| 'less$uor$uequal'(X0,X2)
| ~ 'less$uor$uequal'(X0,X1) ),
inference(clausification,[status(esa)],[transitivity_of_order_relation]) ).
cnf(c22,plain,
( ~ 'less$uor$uequal'(X1,X2)
| 'less$uor$uequal'(add(X1,X0),add(X2,X0))
| ~ defined(X0) ),
inference(clausification,[status(esa)],[compatibility_of_order_relation_and_addition]) ).
cnf(c29,plain,
( ~ equalish(X0,X2)
| 'less$uor$uequal'(X2,X1)
| ~ 'less$uor$uequal'(X0,X1) ),
inference(clausification,[status(esa)],[compatibility_of_equality_and_order_relation]) ).
cnf(d0,plain,
( 'less$uor$uequal'(add(X1,X0),X3)
| ~ 'less$uor$uequal'(add(X2,X0),X3)
| ~ 'less$uor$uequal'(X1,X2)
| ~ defined(X0) ),
inference(resolution,[status(thm)],[c22,c20]) ).
cnf(d1,plain,
( ~ defined(X1)
| ~ defined(X0)
| ~ 'less$uor$uequal'(add(X1,X0),X2)
| 'less$uor$uequal'(add(X0,X1),X2) ),
inference(resolution,[status(thm)],[c29,c7]) ).
cnf(d2,plain,
( ~ 'less$uor$uequal'(X0,X2)
| ~ defined(X1)
| 'less$uor$uequal'(add(X1,X0),add(X2,X1))
| ~ defined(X1)
| ~ defined(X0) ),
inference(resolution,[status(thm)],[d1,c22]) ).
cnf(d3,plain,
( 'less$uor$uequal'(add(X3,X1),add(X2,X0))
| ~ 'less$uor$uequal'(X3,X0)
| ~ defined(X1)
| ~ 'less$uor$uequal'(X1,X2)
| ~ defined(X1)
| ~ defined(X0) ),
inference(resolution,[status(thm)],[d2,d0]) ).
cnf(d4,plain,
( ~ 'less$uor$uequal'(a,b)
| ~ 'less$uor$uequal'(a,b)
| ~ defined(b)
| ~ defined(a) ),
inference(resolution,[status(thm)],[d3,c3]) ).
cnf(d5,plain,
( ~ 'less$uor$uequal'(a,b)
| ~ defined(b) ),
inference(resolution,[status(thm)],[c0,d4]) ).
cnf(d6,plain,
~ 'less$uor$uequal'(a,b),
inference(resolution,[status(thm)],[c1,d5]) ).
cnf(d7,plain,
$false,
inference(resolution,[status(thm)],[c2,d6]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : FLD060-1 : TPTP v9.3.1. Bugfixed v2.1.0.
% 0.00/0.04 % Command : casc-portfolio.sh -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.09/0.35 % Computer : n006.cluster.edu
% 0.09/0.35 % Model : x86_64 x86_64
% 0.09/0.35 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.35 % Memory : 8046.5625MB
% 0.09/0.35 % OS : Linux 6.8.0-71-generic
% 0.09/0.35 % CPULimit : 300
% 0.09/0.35 % WCLimit : 300
% 0.09/0.35 % DateTime : Sun Sep 27 02:32:26 UTC 2026
% 0.09/0.36 % CPUTime :
% 0.09/0.36 Running casc-portfolio.sh -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 42.27/19.12 % SZS status Unsatisfiable for theBenchmark.p
% 42.27/19.12 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
%------------------------------------------------------------------------------