%------------------------------------------------------------------------------
% File : Drodi---4.1.1
% Problem : CSR118+1 : TPTP v9.3.1. Bugfixed v7.3.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -timeout(300) /export/starexec/sandbox2/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 : Thu Sep 24 12:14:15 PM UTC 2026
% Result : Theorem 0.54s 1.13s
% Output : CNFRefutation 0.54s
% Verified :
% SZS Type : Refutation
% Derivation depth : 8
% Number of leaves : 5
% Syntax : Number of formulae : 21 ( 10 unt; 0 def)
% Number of atoms : 49 ( 0 equ)
% Maximal formula atoms : 5 ( 2 avg)
% Number of connectives : 52 ( 24 ~; 21 |; 4 &)
% ( 0 <=>; 3 =>; 0 <=; 0 <~>)
% Maximal formula depth : 9 ( 4 avg)
% Maximal term depth : 1 ( 1 avg)
% Number of predicates : 3 ( 2 usr; 1 prp; 0-2 aty)
% Number of functors : 4 ( 4 usr; 4 con; 0-0 aty)
% Number of variables : 25 ( 25 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f26,axiom,
! [V__X,V__Y] :
( s__subclass(V__X,V__Y)
=> ( s__instance(V__Y,s__SetOrClass)
& s__instance(V__X,s__SetOrClass) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f27,axiom,
! [V__X,V__Y,V__Z] :
( ( s__instance(V__X,s__SetOrClass)
& s__instance(V__Y,s__SetOrClass) )
=> ( ( s__instance(V__Z,V__X)
& s__subclass(V__X,V__Y) )
=> s__instance(V__Z,V__Y) ) ),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f13270,axiom,
s__subclass(s__Human,s__Mammal),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f14788,axiom,
s__instance(s__AbrahamLincoln,s__Human),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f14789,conjecture,
s__instance(s__AbrahamLincoln,s__Mammal),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f14790,negated_conjecture,
~ s__instance(s__AbrahamLincoln,s__Mammal),
inference(negated_conjecture,[status(cth)],[f14789]) ).
fof(f14830,plain,
! [V__X,V__Y] :
( ( s__instance(V__Y,s__SetOrClass)
& s__instance(V__X,s__SetOrClass) )
| ~ s__subclass(V__X,V__Y) ),
inference(pre_NNF_transformation,[status(thm)],[f26]) ).
fof(f14831,plain,
! [X0,X1] :
( s__instance(X0,s__SetOrClass)
| ~ s__subclass(X0,X1) ),
inference(cnf_transformation,[status(thm)],[f14830]) ).
fof(f14832,plain,
! [X0,X1] :
( s__instance(X1,s__SetOrClass)
| ~ s__subclass(X0,X1) ),
inference(cnf_transformation,[status(thm)],[f14830]) ).
fof(f14833,plain,
! [V__X,V__Y,V__Z] :
( s__instance(V__Z,V__Y)
| ~ s__instance(V__Z,V__X)
| ~ s__subclass(V__X,V__Y)
| ~ s__instance(V__X,s__SetOrClass)
| ~ s__instance(V__Y,s__SetOrClass) ),
inference(pre_NNF_transformation,[status(thm)],[f27]) ).
fof(f14834,plain,
! [V__X,V__Y] :
( ! [V__Z] :
( s__instance(V__Z,V__Y)
| ~ s__instance(V__Z,V__X)
| ~ s__subclass(V__X,V__Y) )
| ~ s__instance(V__X,s__SetOrClass)
| ~ s__instance(V__Y,s__SetOrClass) ),
inference(miniscoping,[status(thm)],[f14833]) ).
fof(f14835,plain,
! [X0,X1,X2] :
( s__instance(X2,X0)
| ~ s__instance(X2,X1)
| ~ s__subclass(X1,X0)
| ~ s__instance(X1,s__SetOrClass)
| ~ s__instance(X0,s__SetOrClass) ),
inference(cnf_transformation,[status(thm)],[f14834]) ).
fof(f32842,plain,
s__subclass(s__Human,s__Mammal),
inference(cnf_transformation,[status(thm)],[f13270]) ).
fof(f34360,plain,
s__instance(s__AbrahamLincoln,s__Human),
inference(cnf_transformation,[status(thm)],[f14788]) ).
fof(f34361,plain,
~ s__instance(s__AbrahamLincoln,s__Mammal),
inference(cnf_transformation,[status(thm)],[f14790]) ).
fof(f34809,plain,
s__instance(s__Human,s__SetOrClass),
inference(resolution,[status(thm)],[f14831,f32842]) ).
fof(f34837,plain,
! [X0,X1,X2] :
( s__instance(X2,X1)
| ~ s__instance(X2,X0)
| ~ s__subclass(X0,X1)
| ~ s__instance(X0,s__SetOrClass) ),
inference(forward_subsumption_resolution,[status(thm)],[f14835,f14832]) ).
fof(f34838,plain,
! [X0] :
( s__instance(X0,s__Mammal)
| ~ s__instance(X0,s__Human)
| ~ s__instance(s__Human,s__SetOrClass) ),
inference(resolution,[status(thm)],[f34837,f32842]) ).
fof(f34995,plain,
! [X0] :
( s__instance(X0,s__Mammal)
| ~ s__instance(X0,s__Human) ),
inference(forward_subsumption_resolution,[status(thm)],[f34838,f34809]) ).
fof(f34996,plain,
~ s__instance(s__AbrahamLincoln,s__Human),
inference(resolution,[status(thm)],[f34995,f34361]) ).
fof(f34997,plain,
$false,
inference(forward_subsumption_resolution,[status(thm)],[f34996,f34360]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : CSR118+1 : TPTP v9.3.1. Bugfixed v7.3.0.
% 0.00/0.04 % Command : drodi -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.09/0.35 % Computer : n009.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 : Mon Sep 21 15:10:43 UTC 2026
% 0.09/0.35 % CPUTime :
% 0.46/0.71 % Drodi V4.1.1
% 0.54/1.13 % Refutation found
% 0.54/1.13 % SZS status Theorem for theBenchmark: Theorem is valid
% 0.54/1.13 % SZS output start CNFRefutation for theBenchmark
% See solution above
% 2.66/1.16 % Elapsed time: 0.790488 seconds
% 2.66/1.16 % CPU time: 2.956870 seconds
% 2.66/1.16 % Total memory used: 763.285 MB
% 2.66/1.16 % Net memory used: 760.610 MB
%------------------------------------------------------------------------------