%------------------------------------------------------------------------------
% File : Drodi---4.1.1
% Problem : NLP141+1 : TPTP v9.3.1. Released v2.4.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n017.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 01:31:22 PM UTC 2026
% Result : Theorem 0.18s 0.51s
% Output : CNFRefutation 0.18s
% Verified :
% SZS Type : Refutation
% Derivation depth : 13
% Number of leaves : 13
% Syntax : Number of formulae : 66 ( 16 unt; 0 def)
% Number of atoms : 287 ( 29 equ)
% Maximal formula atoms : 27 ( 4 avg)
% Number of connectives : 291 ( 70 ~; 59 |; 144 &)
% ( 2 <=>; 16 =>; 0 <=; 0 <~>)
% Maximal formula depth : 34 ( 6 avg)
% Maximal term depth : 3 ( 1 avg)
% Number of predicates : 36 ( 34 usr; 1 prp; 0-4 aty)
% Number of functors : 11 ( 11 usr; 6 con; 0-4 aty)
% Number of variables : 162 ( 120 !; 42 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f1,axiom,
! [U,V] :
( furniture(U,V)
=> instrumentality(U,V) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f2,axiom,
! [U,V] :
( seat(U,V)
=> furniture(U,V) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f3,axiom,
! [U,V] :
( frontseat(U,V)
=> seat(U,V) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f18,axiom,
! [U,V] :
( object(U,V)
=> nonliving(U,V) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f20,axiom,
! [U,V] :
( artifact(U,V)
=> object(U,V) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f21,axiom,
! [U,V] :
( instrumentality(U,V)
=> artifact(U,V) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f38,axiom,
! [U,V] :
( human_person(U,V)
=> animate(U,V) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f48,axiom,
! [U,V] :
( man(U,V)
=> human_person(U,V) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f49,axiom,
! [U,V] :
( fellow(U,V)
=> man(U,V) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f50,axiom,
! [U,V] :
( animate(U,V)
=> ~ nonliving(U,V) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f59,axiom,
! [U,V,W,X] :
( be(U,V,W,X)
=> W = X ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f60,axiom,
! [U,V] :
( two(U,V)
<=> ? [W] :
( ? [X] :
( ! [Y] :
( member(U,Y,V)
=> ( Y = W
| Y = X ) )
& X != W
& member(U,X,V) )
& member(U,W,V) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f62,conjecture,
~ ? [U] :
( ? [V,W,X,Y,Z] :
( ! [X4] :
( member(U,X4,Z)
=> ( young(U,X4)
& fellow(U,X4) ) )
& group(U,Z)
& two(U,Z)
& ! [X1] :
( member(U,X1,Z)
=> ? [X2,X3] :
( in(U,X3,X3)
& be(U,X2,X1,X3)
& state(U,X2)
& frontseat(U,X3) ) )
& in(U,Y,X)
& down(U,Y,X)
& barrel(U,Y)
& present(U,Y)
& agent(U,Y,V)
& event(U,Y)
& lonely(U,X)
& street(U,X)
& placename(U,W)
& hollywood_placename(U,W)
& city(U,X)
& of(U,W,X)
& old(U,V)
& dirty(U,V)
& white(U,V)
& chevy(U,V) )
& actual_world(U) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f63,negated_conjecture,
~ ~ ? [U] :
( ? [V,W,X,Y,Z] :
( ! [X4] :
( member(U,X4,Z)
=> ( young(U,X4)
& fellow(U,X4) ) )
& group(U,Z)
& two(U,Z)
& ! [X1] :
( member(U,X1,Z)
=> ? [X2,X3] :
( in(U,X3,X3)
& be(U,X2,X1,X3)
& state(U,X2)
& frontseat(U,X3) ) )
& in(U,Y,X)
& down(U,Y,X)
& barrel(U,Y)
& present(U,Y)
& agent(U,Y,V)
& event(U,Y)
& lonely(U,X)
& street(U,X)
& placename(U,W)
& hollywood_placename(U,W)
& city(U,X)
& of(U,W,X)
& old(U,V)
& dirty(U,V)
& white(U,V)
& chevy(U,V) )
& actual_world(U) ),
inference(negated_conjecture,[status(cth)],[f62]) ).
fof(f64,plain,
! [U,V] :
( instrumentality(U,V)
| ~ furniture(U,V) ),
inference(pre_NNF_transformation,[status(thm)],[f1]) ).
fof(f65,plain,
! [X0,X1] :
( instrumentality(X0,X1)
| ~ furniture(X0,X1) ),
inference(cnf_transformation,[status(thm)],[f64]) ).
fof(f66,plain,
! [U,V] :
( furniture(U,V)
| ~ seat(U,V) ),
inference(pre_NNF_transformation,[status(thm)],[f2]) ).
fof(f67,plain,
! [X0,X1] :
( furniture(X0,X1)
| ~ seat(X0,X1) ),
inference(cnf_transformation,[status(thm)],[f66]) ).
fof(f68,plain,
! [U,V] :
( seat(U,V)
| ~ frontseat(U,V) ),
inference(pre_NNF_transformation,[status(thm)],[f3]) ).
fof(f69,plain,
! [X0,X1] :
( seat(X0,X1)
| ~ frontseat(X0,X1) ),
inference(cnf_transformation,[status(thm)],[f68]) ).
fof(f98,plain,
! [U,V] :
( nonliving(U,V)
| ~ object(U,V) ),
inference(pre_NNF_transformation,[status(thm)],[f18]) ).
fof(f99,plain,
! [X0,X1] :
( nonliving(X0,X1)
| ~ object(X0,X1) ),
inference(cnf_transformation,[status(thm)],[f98]) ).
fof(f102,plain,
! [U,V] :
( object(U,V)
| ~ artifact(U,V) ),
inference(pre_NNF_transformation,[status(thm)],[f20]) ).
fof(f103,plain,
! [X0,X1] :
( object(X0,X1)
| ~ artifact(X0,X1) ),
inference(cnf_transformation,[status(thm)],[f102]) ).
fof(f104,plain,
! [U,V] :
( artifact(U,V)
| ~ instrumentality(U,V) ),
inference(pre_NNF_transformation,[status(thm)],[f21]) ).
fof(f105,plain,
! [X0,X1] :
( artifact(X0,X1)
| ~ instrumentality(X0,X1) ),
inference(cnf_transformation,[status(thm)],[f104]) ).
fof(f138,plain,
! [U,V] :
( animate(U,V)
| ~ human_person(U,V) ),
inference(pre_NNF_transformation,[status(thm)],[f38]) ).
fof(f139,plain,
! [X0,X1] :
( animate(X0,X1)
| ~ human_person(X0,X1) ),
inference(cnf_transformation,[status(thm)],[f138]) ).
fof(f158,plain,
! [U,V] :
( human_person(U,V)
| ~ man(U,V) ),
inference(pre_NNF_transformation,[status(thm)],[f48]) ).
fof(f159,plain,
! [X0,X1] :
( human_person(X0,X1)
| ~ man(X0,X1) ),
inference(cnf_transformation,[status(thm)],[f158]) ).
fof(f160,plain,
! [U,V] :
( man(U,V)
| ~ fellow(U,V) ),
inference(pre_NNF_transformation,[status(thm)],[f49]) ).
fof(f161,plain,
! [X0,X1] :
( man(X0,X1)
| ~ fellow(X0,X1) ),
inference(cnf_transformation,[status(thm)],[f160]) ).
fof(f162,plain,
! [U,V] :
( ~ nonliving(U,V)
| ~ animate(U,V) ),
inference(pre_NNF_transformation,[status(thm)],[f50]) ).
fof(f163,plain,
! [X0,X1] :
( ~ nonliving(X0,X1)
| ~ animate(X0,X1) ),
inference(cnf_transformation,[status(thm)],[f162]) ).
fof(f180,plain,
! [U,V,W,X] :
( W = X
| ~ be(U,V,W,X) ),
inference(pre_NNF_transformation,[status(thm)],[f59]) ).
fof(f181,plain,
! [W,X] :
( W = X
| ! [U,V] : ~ be(U,V,W,X) ),
inference(miniscoping,[status(thm)],[f180]) ).
fof(f182,plain,
! [X0,X1,X2,X3] :
( X2 = X3
| ~ be(X0,X1,X2,X3) ),
inference(cnf_transformation,[status(thm)],[f181]) ).
fof(f183,plain,
! [U,V] :
( two(U,V)
<=> ? [W] :
( ? [X] :
( ! [Y] :
( Y = W
| Y = X
| ~ member(U,Y,V) )
& X != W
& member(U,X,V) )
& member(U,W,V) ) ),
inference(pre_NNF_transformation,[status(thm)],[f60]) ).
fof(f184,plain,
! [U,V] :
( ( ! [W] :
( ! [X] :
( ? [Y] :
( Y != W
& Y != X
& member(U,Y,V) )
| X = W
| ~ member(U,X,V) )
| ~ member(U,W,V) )
| two(U,V) )
& ( ? [W] :
( ? [X] :
( ! [Y] :
( Y = W
| Y = X
| ~ member(U,Y,V) )
& X != W
& member(U,X,V) )
& member(U,W,V) )
| ~ two(U,V) ) ),
inference(NNF_transformation,[status(thm)],[f183]) ).
fof(f185,plain,
( ! [U,V] :
( ! [W] :
( ! [X] :
( ? [Y] :
( Y != W
& Y != X
& member(U,Y,V) )
| X = W
| ~ member(U,X,V) )
| ~ member(U,W,V) )
| two(U,V) )
& ! [U,V] :
( ? [W] :
( ? [X] :
( ! [Y] :
( Y = W
| Y = X
| ~ member(U,Y,V) )
& X != W
& member(U,X,V) )
& member(U,W,V) )
| ~ two(U,V) ) ),
inference(miniscoping,[status(thm)],[f184]) ).
fof(f186,plain,
( ! [U,V] :
( ! [W] :
( ! [X] :
( ( sK2_skl(X,W,V,U) != W
& sK2_skl(X,W,V,U) != X
& member(U,sK2_skl(X,W,V,U),V) )
| X = W
| ~ member(U,X,V) )
| ~ member(U,W,V) )
| two(U,V) )
& ! [U,V] :
( ( ! [Y] :
( Y = sK0_skl(V,U)
| Y = sK1_skl(V,U)
| ~ member(U,Y,V) )
& sK1_skl(V,U) != sK0_skl(V,U)
& member(U,sK1_skl(V,U),V)
& member(U,sK0_skl(V,U),V) )
| ~ two(U,V) ) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK0_skl,sK1_skl,sK2_skl]),skolemize(W,sK0_skl(V,U)),skolemize(X,sK1_skl(V,U)),skolemize(Y,sK2_skl(X,W,V,U))],[f185]) ).
fof(f187,plain,
! [X0,X1] :
( member(X0,sK0_skl(X1,X0),X1)
| ~ two(X0,X1) ),
inference(cnf_transformation,[status(thm)],[f186]) ).
fof(f196,plain,
? [U] :
( ? [V,W,X,Y,Z] :
( ! [X4] :
( ( young(U,X4)
& fellow(U,X4) )
| ~ member(U,X4,Z) )
& group(U,Z)
& two(U,Z)
& ! [X1] :
( ? [X2,X3] :
( in(U,X3,X3)
& be(U,X2,X1,X3)
& state(U,X2)
& frontseat(U,X3) )
| ~ member(U,X1,Z) )
& in(U,Y,X)
& down(U,Y,X)
& barrel(U,Y)
& present(U,Y)
& agent(U,Y,V)
& event(U,Y)
& lonely(U,X)
& street(U,X)
& placename(U,W)
& hollywood_placename(U,W)
& city(U,X)
& of(U,W,X)
& old(U,V)
& dirty(U,V)
& white(U,V)
& chevy(U,V) )
& actual_world(U) ),
inference(pre_NNF_transformation,[status(thm)],[f63]) ).
fof(f197,plain,
? [U] :
( ? [Z] :
( ! [X4] :
( ( young(U,X4)
& fellow(U,X4) )
| ~ member(U,X4,Z) )
& group(U,Z)
& two(U,Z)
& ! [X1] :
( ? [X3] :
( in(U,X3,X3)
& ? [X2] :
( be(U,X2,X1,X3)
& state(U,X2)
& frontseat(U,X3) ) )
| ~ member(U,X1,Z) )
& ? [X,Y] :
( in(U,Y,X)
& down(U,Y,X)
& barrel(U,Y)
& present(U,Y)
& ? [V] :
( agent(U,Y,V)
& event(U,Y)
& lonely(U,X)
& street(U,X)
& ? [W] :
( placename(U,W)
& hollywood_placename(U,W)
& city(U,X)
& of(U,W,X)
& old(U,V)
& dirty(U,V)
& white(U,V)
& chevy(U,V) ) ) ) )
& actual_world(U) ),
inference(miniscoping,[status(thm)],[f196]) ).
fof(f198,plain,
( ! [X4] :
( ( young(sK3_skl,X4)
& fellow(sK3_skl,X4) )
| ~ member(sK3_skl,X4,sK4_skl) )
& group(sK3_skl,sK4_skl)
& two(sK3_skl,sK4_skl)
& ! [X1] :
( ( in(sK3_skl,sK9_skl(X1),sK9_skl(X1))
& be(sK3_skl,sK10_skl(X1),X1,sK9_skl(X1))
& state(sK3_skl,sK10_skl(X1))
& frontseat(sK3_skl,sK9_skl(X1)) )
| ~ member(sK3_skl,X1,sK4_skl) )
& in(sK3_skl,sK6_skl,sK5_skl)
& down(sK3_skl,sK6_skl,sK5_skl)
& barrel(sK3_skl,sK6_skl)
& present(sK3_skl,sK6_skl)
& agent(sK3_skl,sK6_skl,sK7_skl)
& event(sK3_skl,sK6_skl)
& lonely(sK3_skl,sK5_skl)
& street(sK3_skl,sK5_skl)
& placename(sK3_skl,sK8_skl)
& hollywood_placename(sK3_skl,sK8_skl)
& city(sK3_skl,sK5_skl)
& of(sK3_skl,sK8_skl,sK5_skl)
& old(sK3_skl,sK7_skl)
& dirty(sK3_skl,sK7_skl)
& white(sK3_skl,sK7_skl)
& chevy(sK3_skl,sK7_skl)
& actual_world(sK3_skl) ),
inference(skolemize,[status(esa),new_symbols(skolem,[sK3_skl,sK4_skl,sK5_skl,sK6_skl,sK7_skl,sK8_skl,sK9_skl,sK10_skl]),skolemize(U,sK3_skl),skolemize(Z,sK4_skl),skolemize(X,sK5_skl),skolemize(Y,sK6_skl),skolemize(V,sK7_skl),skolemize(W,sK8_skl),skolemize(X3,sK9_skl(X1)),skolemize(X2,sK10_skl(X1))],[f197]) ).
fof(f216,plain,
! [X0] :
( frontseat(sK3_skl,sK9_skl(X0))
| ~ member(sK3_skl,X0,sK4_skl) ),
inference(cnf_transformation,[status(thm)],[f198]) ).
fof(f218,plain,
! [X0] :
( be(sK3_skl,sK10_skl(X0),X0,sK9_skl(X0))
| ~ member(sK3_skl,X0,sK4_skl) ),
inference(cnf_transformation,[status(thm)],[f198]) ).
fof(f220,plain,
two(sK3_skl,sK4_skl),
inference(cnf_transformation,[status(thm)],[f198]) ).
fof(f222,plain,
! [X0] :
( fellow(sK3_skl,X0)
| ~ member(sK3_skl,X0,sK4_skl) ),
inference(cnf_transformation,[status(thm)],[f198]) ).
fof(f259,plain,
! [X0,X1] :
( ~ human_person(X0,X1)
| ~ nonliving(X0,X1) ),
inference(resolution,[status(thm)],[f163,f139]) ).
fof(f267,plain,
member(sK3_skl,sK0_skl(sK4_skl,sK3_skl),sK4_skl),
inference(resolution,[status(thm)],[f187,f220]) ).
fof(f268,plain,
be(sK3_skl,sK10_skl(sK0_skl(sK4_skl,sK3_skl)),sK0_skl(sK4_skl,sK3_skl),sK9_skl(sK0_skl(sK4_skl,sK3_skl))),
inference(resolution,[status(thm)],[f267,f218]) ).
fof(f270,plain,
frontseat(sK3_skl,sK9_skl(sK0_skl(sK4_skl,sK3_skl))),
inference(resolution,[status(thm)],[f267,f216]) ).
fof(f271,plain,
fellow(sK3_skl,sK0_skl(sK4_skl,sK3_skl)),
inference(resolution,[status(thm)],[f267,f222]) ).
fof(f272,plain,
man(sK3_skl,sK0_skl(sK4_skl,sK3_skl)),
inference(resolution,[status(thm)],[f271,f161]) ).
fof(f273,plain,
human_person(sK3_skl,sK0_skl(sK4_skl,sK3_skl)),
inference(resolution,[status(thm)],[f272,f159]) ).
fof(f277,plain,
sK0_skl(sK4_skl,sK3_skl) = sK9_skl(sK0_skl(sK4_skl,sK3_skl)),
inference(resolution,[status(thm)],[f268,f182]) ).
fof(f280,plain,
! [X0,X1] :
( ~ object(X0,X1)
| ~ human_person(X0,X1) ),
inference(resolution,[status(thm)],[f259,f99]) ).
fof(f287,plain,
~ object(sK3_skl,sK0_skl(sK4_skl,sK3_skl)),
inference(resolution,[status(thm)],[f280,f273]) ).
fof(f294,plain,
~ artifact(sK3_skl,sK0_skl(sK4_skl,sK3_skl)),
inference(resolution,[status(thm)],[f287,f103]) ).
fof(f302,plain,
~ instrumentality(sK3_skl,sK0_skl(sK4_skl,sK3_skl)),
inference(resolution,[status(thm)],[f294,f105]) ).
fof(f370,plain,
seat(sK3_skl,sK9_skl(sK0_skl(sK4_skl,sK3_skl))),
inference(resolution,[status(thm)],[f270,f69]) ).
fof(f429,plain,
seat(sK3_skl,sK0_skl(sK4_skl,sK3_skl)),
inference(forward_demodulation,[status(thm)],[f277,f370]) ).
fof(f430,plain,
furniture(sK3_skl,sK0_skl(sK4_skl,sK3_skl)),
inference(resolution,[status(thm)],[f429,f67]) ).
fof(f458,plain,
instrumentality(sK3_skl,sK0_skl(sK4_skl,sK3_skl)),
inference(resolution,[status(thm)],[f430,f65]) ).
fof(f459,plain,
$false,
inference(forward_subsumption_resolution,[status(thm)],[f458,f302]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.05 % Problem : NLP141+1 : TPTP v9.3.1. Released v2.4.0.
% 0.00/0.06 % Command : drodi -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.18/0.45 % Computer : n017.cluster.edu
% 0.18/0.45 % Model : x86_64 x86_64
% 0.18/0.45 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.18/0.45 % Memory : 8046.5625MB
% 0.18/0.45 % OS : Linux 6.8.0-71-generic
% 0.18/0.45 % CPULimit : 300
% 0.18/0.45 % WCLimit : 300
% 0.18/0.45 % DateTime : Mon Sep 21 01:38:26 UTC 2026
% 0.18/0.45 % CPUTime :
% 0.18/0.48 % Drodi V4.1.1
% 0.18/0.51 % Refutation found
% 0.18/0.51 % SZS status Theorem for theBenchmark: Theorem is valid
% 0.18/0.51 % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.25/0.57 % Elapsed time: 0.104494 seconds
% 0.25/0.57 % CPU time: 0.104108 seconds
% 0.25/0.57 % Total memory used: 2.804 MB
% 0.25/0.57 % Net memory used: 2.801 MB
%------------------------------------------------------------------------------