%------------------------------------------------------------------------------
% File : Drodi---4.1.1
% Problem : GEO226+1 : TPTP v9.3.1. Released v3.3.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n002.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 : Thu Sep 24 12:24:37 PM UTC 2026
% Result : Theorem 0.12s 0.39s
% Output : CNFRefutation 0.12s
% Verified :
% SZS Type : Refutation
% Derivation depth : 9
% Number of leaves : 4
% Syntax : Number of formulae : 21 ( 4 unt; 1 def)
% Number of atoms : 58 ( 0 equ)
% Maximal formula atoms : 6 ( 2 avg)
% Number of connectives : 57 ( 20 ~; 12 |; 18 &)
% ( 1 <=>; 6 =>; 0 <=; 0 <~>)
% Maximal formula depth : 9 ( 4 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of predicates : 6 ( 5 usr; 2 prp; 0-2 aty)
% Number of functors : 3 ( 3 usr; 2 con; 0-2 aty)
% Number of variables : 29 ( 23 !; 6 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f9,axiom,
! [X,Y] :
( convergent_lines(X,Y)
=> ~ apart_point_and_line(intersection_point(X,Y),X) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f10,axiom,
! [X,Y] :
( convergent_lines(X,Y)
=> ~ apart_point_and_line(intersection_point(X,Y),Y) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f19,conjecture,
! [L,M] :
( ( convergent_lines(L,M)
& line(M)
& line(L) )
=> ? [X] :
( point(X)
=> ( ~ apart_point_and_line(X,M)
& ~ apart_point_and_line(X,L) ) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f20,negated_conjecture,
~ ! [L,M] :
( ( convergent_lines(L,M)
& line(M)
& line(L) )
=> ? [X] :
( point(X)
=> ( ~ apart_point_and_line(X,M)
& ~ apart_point_and_line(X,L) ) ) ),
inference(negated_conjecture,[status(cth)],[f19]) ).
fof(f37,plain,
! [X,Y] :
( ~ apart_point_and_line(intersection_point(X,Y),X)
| ~ convergent_lines(X,Y) ),
inference(pre_NNF_transformation,[status(thm)],[f9]) ).
fof(f38,plain,
! [X0,X1] :
( ~ apart_point_and_line(intersection_point(X0,X1),X0)
| ~ convergent_lines(X0,X1) ),
inference(cnf_transformation,[status(thm)],[f37]) ).
fof(f39,plain,
! [X,Y] :
( ~ apart_point_and_line(intersection_point(X,Y),Y)
| ~ convergent_lines(X,Y) ),
inference(pre_NNF_transformation,[status(thm)],[f10]) ).
fof(f40,plain,
! [X0,X1] :
( ~ apart_point_and_line(intersection_point(X0,X1),X1)
| ~ convergent_lines(X0,X1) ),
inference(cnf_transformation,[status(thm)],[f39]) ).
fof(f60,plain,
? [L,M] :
( ! [X] :
( ( apart_point_and_line(X,M)
| apart_point_and_line(X,L) )
& point(X) )
& convergent_lines(L,M)
& line(M)
& line(L) ),
inference(pre_NNF_transformation,[status(thm)],[f20]) ).
fof(f61,plain,
? [L,M] :
( ! [X] :
( apart_point_and_line(X,M)
| apart_point_and_line(X,L) )
& ! [X] : point(X)
& convergent_lines(L,M)
& line(M)
& line(L) ),
inference(miniscoping,[status(thm)],[f60]) ).
fof(f62,plain,
( ! [X] :
( apart_point_and_line(X,sK1_skl)
| apart_point_and_line(X,sK0_skl) )
& ! [X] : point(X)
& convergent_lines(sK0_skl,sK1_skl)
& line(sK1_skl)
& line(sK0_skl) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK0_skl,sK1_skl]),skolemize(L,sK0_skl),skolemize(M,sK1_skl)],[f61]) ).
fof(f65,plain,
convergent_lines(sK0_skl,sK1_skl),
inference(cnf_transformation,[status(thm)],[f62]) ).
fof(f67,plain,
! [X0] :
( apart_point_and_line(X0,sK1_skl)
| apart_point_and_line(X0,sK0_skl) ),
inference(cnf_transformation,[status(thm)],[f62]) ).
fof(f71,plain,
! [X0] :
( ~ convergent_lines(X0,sK1_skl)
| apart_point_and_line(intersection_point(X0,sK1_skl),sK0_skl) ),
inference(resolution,[status(thm)],[f67,f40]) ).
fof(f73,plain,
( ~ convergent_lines(sK0_skl,sK1_skl)
| ~ convergent_lines(sK0_skl,sK1_skl) ),
inference(resolution,[status(thm)],[f71,f38]) ).
fof(f74,definition,
( sQ0_spl
<=> convergent_lines(sK0_skl,sK1_skl) ),
introduced(definition,[new_symbols(definition,[sQ0_spl])],[split_symbol_definition]) ).
fof(f76,plain,
( sQ0_spl
| ~ convergent_lines(sK0_skl,sK1_skl) ),
inference(component_clause,[status(thm)],[f74]) ).
fof(f77,plain,
~ sQ0_spl,
inference(split_clause,[status(thm)],[f73,f74]) ).
fof(f78,plain,
( sQ0_spl
| $false ),
inference(forward_subsumption_resolution,[status(thm)],[f76,f65]) ).
fof(f79,plain,
sQ0_spl,
inference(contradiction_clause,[status(thm)],[f78]) ).
fof(f80,plain,
$false,
inference(sat_refutation,[status(thm)],[f77,f79]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : GEO226+1 : TPTP v9.3.1. Released v3.3.0.
% 0.00/0.04 % Command : drodi -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.08/0.35 % Computer : n002.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 : Sun Sep 20 14:02:01 UTC 2026
% 0.08/0.36 % CPUTime :
% 0.12/0.36 % Drodi V4.1.1
% 0.12/0.39 % Refutation found
% 0.12/0.39 % SZS status Theorem for theBenchmark: Theorem is valid
% 0.12/0.39 % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.12/0.42 % Elapsed time: 0.045671 seconds
% 0.12/0.42 % CPU time: 0.114119 seconds
% 0.12/0.42 % Total memory used: 17.166 MB
% 0.12/0.42 % Net memory used: 16.814 MB
%------------------------------------------------------------------------------