%------------------------------------------------------------------------------
% File : LisaST---0.9
% Problem : GEO215+2 : TPTP v9.3.1. Released v3.3.0.
% Transfm : none
% Format : tptp:raw
% Command : casc-portfolio.sh -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n019.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 07:14:47 AM UTC 2026
% Result : Theorem 10.84s 4.29s
% Output : CNFRefutation 10.84s
% Verified :
% SZS Type : Refutation
% Derivation depth : 9
% Number of leaves : 5
% Syntax : Number of formulae : 23 ( 7 unt; 0 def)
% Number of atoms : 54 ( 0 equ)
% Maximal formula atoms : 5 ( 2 avg)
% Number of connectives : 49 ( 18 ~; 25 |; 0 &)
% ( 0 <=>; 6 =>; 0 <=; 0 <~>)
% Maximal formula depth : 9 ( 4 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of predicates : 6 ( 5 usr; 1 prp; 0-2 aty)
% Number of functors : 4 ( 4 usr; 3 con; 0-2 aty)
% Number of variables : 38 ( 0 sgn 16 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(apart1,axiom,
! [X0] : ~ 'distinct$upoints'(X0,X0) ).
fof(con2,axiom,
! [X0,X1,X2] :
( 'convergent$ulines'(X0,X1)
=> ( ( 'apart$upoint$uand$uline'(X2,X1)
| 'apart$upoint$uand$uline'(X2,X0) )
=> 'distinct$upoints'(X2,'intersection$upoint'(X0,X1)) ) ) ).
fof(ceq3,axiom,
! [X0,X1] :
( 'convergent$ulines'(X0,X1)
=> 'distinct$ulines'(X0,X1) ) ).
fof(ouo1,axiom,
! [X0,X1,X2,X3] :
( 'distinct$ulines'(X1,X2)
=> ( 'unorthogonal$ulines'(X2,X3)
| 'unorthogonal$ulines'(X1,X3)
| 'apart$upoint$uand$uline'(X0,X2)
| 'apart$upoint$uand$uline'(X0,X1) ) ) ).
fof(con,conjecture,
! [X0,X1,X2] :
( 'convergent$ulines'(X0,X1)
=> ( 'unorthogonal$ulines'(X1,X2)
| 'unorthogonal$ulines'(X0,X2) ) ) ).
fof(negated_conjecture,negated_conjecture,
~ ! [X0,X1,X2] :
( 'convergent$ulines'(X0,X1)
=> ( 'unorthogonal$ulines'(X1,X2)
| 'unorthogonal$ulines'(X0,X2) ) ),
inference(negate_conjecture,[status(cth)],[con]) ).
cnf(c0,plain,
~ 'distinct$upoints'(X0,X0),
inference(clausification,[status(esa)],[apart1]) ).
cnf(c8,plain,
( 'distinct$upoints'(X2,'intersection$upoint'(X0,X1))
| ~ 'apart$upoint$uand$uline'(X2,X0)
| ~ 'convergent$ulines'(X0,X1) ),
inference(clausification,[status(esa)],[con2]) ).
cnf(c9,plain,
( 'distinct$upoints'(X2,'intersection$upoint'(X0,X1))
| ~ 'apart$upoint$uand$uline'(X2,X1)
| ~ 'convergent$ulines'(X0,X1) ),
inference(clausification,[status(esa)],[con2]) ).
cnf(c13,plain,
( 'distinct$ulines'(X0,X1)
| ~ 'convergent$ulines'(X0,X1) ),
inference(clausification,[status(esa)],[ceq3]) ).
cnf(c24,plain,
( 'unorthogonal$ulines'(X2,X3)
| 'unorthogonal$ulines'(X1,X3)
| ~ 'distinct$ulines'(X2,X1)
| 'apart$upoint$uand$uline'(X0,X2)
| 'apart$upoint$uand$uline'(X0,X1) ),
inference(clausification,[status(esa)],[ouo1]) ).
cnf(c25,plain,
'convergent$ulines'(sK50,sK51),
inference(clausification,[status(esa)],[negated_conjecture]) ).
cnf(c26,plain,
~ 'unorthogonal$ulines'(sK50,sK52),
inference(clausification,[status(esa)],[negated_conjecture]) ).
cnf(c27,plain,
~ 'unorthogonal$ulines'(sK51,sK52),
inference(clausification,[status(esa)],[negated_conjecture]) ).
cnf(d0,plain,
( ~ 'apart$upoint$uand$uline'('intersection$upoint'(X0,X1),X0)
| ~ 'convergent$ulines'(X0,X1) ),
inference(resolution,[status(thm)],[c8,c0]) ).
cnf(d1,plain,
( ~ 'apart$upoint$uand$uline'('intersection$upoint'(X0,X1),X1)
| ~ 'convergent$ulines'(X0,X1) ),
inference(resolution,[status(thm)],[c9,c0]) ).
cnf(d2,plain,
'distinct$ulines'(sK50,sK51),
inference(resolution,[status(thm)],[c13,c25]) ).
cnf(d3,plain,
( 'unorthogonal$ulines'(sK50,X1)
| 'unorthogonal$ulines'(sK51,X1)
| 'apart$upoint$uand$uline'(X0,sK50)
| 'apart$upoint$uand$uline'(X0,sK51) ),
inference(resolution,[status(thm)],[c24,d2]) ).
cnf(d4,plain,
( 'unorthogonal$ulines'(sK50,sK52)
| 'apart$upoint$uand$uline'(X0,sK51)
| 'apart$upoint$uand$uline'(X0,sK50) ),
inference(resolution,[status(thm)],[d3,c27]) ).
cnf(d5,plain,
( 'apart$upoint$uand$uline'(X0,sK51)
| 'apart$upoint$uand$uline'(X0,sK50) ),
inference(resolution,[status(thm)],[c26,d4]) ).
cnf(d6,plain,
( ~ 'convergent$ulines'(X0,sK51)
| 'apart$upoint$uand$uline'('intersection$upoint'(X0,sK51),sK50) ),
inference(resolution,[status(thm)],[d5,d1]) ).
cnf(d7,plain,
( ~ 'convergent$ulines'(sK50,sK51)
| ~ 'convergent$ulines'(sK50,sK51) ),
inference(resolution,[status(thm)],[d6,d0]) ).
cnf(d8,plain,
$false,
inference(resolution,[status(thm)],[c25,d7]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : GEO215+2 : TPTP v9.3.1. Released v3.3.0.
% 0.00/0.04 % Command : casc-portfolio.sh -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.09/0.36 % Computer : n019.cluster.edu
% 0.09/0.36 % Model : x86_64 x86_64
% 0.09/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.36 % Memory : 8046.5625MB
% 0.09/0.36 % OS : Linux 6.8.0-71-generic
% 0.09/0.36 % CPULimit : 300
% 0.09/0.36 % WCLimit : 300
% 0.09/0.36 % DateTime : Fri Sep 25 13:07:04 UTC 2026
% 0.09/0.36 % CPUTime :
% 0.09/0.36 Running casc-portfolio.sh -t 300 /export/starexec/sandbox2/benchmark/theBenchmark.p
% 10.84/4.29 % SZS status Theorem for theBenchmark.p
% 10.84/4.29 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
%------------------------------------------------------------------------------