%------------------------------------------------------------------------------
% File : Drodi---4.1.1
% Problem : SWV874-1 : TPTP v9.3.1. Released v4.1.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n026.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 02:49:42 PM UTC 2026
% Result : Unsatisfiable 0.36s 0.65s
% Output : CNFRefutation 0.36s
% Verified :
% SZS Type : Refutation
% Derivation depth : 2
% Number of leaves : 2
% Syntax : Number of formulae : 5 ( 5 unt; 0 def)
% Number of atoms : 5 ( 0 equ)
% Maximal formula atoms : 1 ( 1 avg)
% Number of connectives : 2 ( 2 ~; 0 |; 0 &)
% ( 0 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 2 ( 2 avg)
% Maximal term depth : 4 ( 2 avg)
% Number of predicates : 2 ( 1 usr; 1 prp; 0-1 aty)
% Number of functors : 4 ( 4 usr; 2 con; 0-2 aty)
% Number of variables : 2 ( 2 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f1020,axiom,
! [V_s] : hBOOL(hAPP(hAPP(c_Natural_Oevalc(c_Com_Ocom_OSKIP),V_s),V_s)),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f1046,negated_conjecture,
~ hBOOL(hAPP(hAPP(c_Natural_Oevalc(c_Com_Ocom_OSKIP),v_x),v_x)),
file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).
fof(f2806,plain,
! [X0] : hBOOL(hAPP(hAPP(c_Natural_Oevalc(c_Com_Ocom_OSKIP),X0),X0)),
inference(cnf_transformation,[status(thm)],[f1020]) ).
fof(f2841,plain,
~ hBOOL(hAPP(hAPP(c_Natural_Oevalc(c_Com_Ocom_OSKIP),v_x),v_x)),
inference(cnf_transformation,[status(thm)],[f1046]) ).
fof(f2939,plain,
$false,
inference(backward_subsumption_resolution,[status(thm)],[f2841,f2806]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.04 % Problem : SWV874-1 : TPTP v9.3.1. Released v4.1.0.
% 0.00/0.06 % Command : drodi -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.16/0.43 % Computer : n026.cluster.edu
% 0.16/0.43 % Model : x86_64 x86_64
% 0.16/0.43 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.16/0.43 % Memory : 8046.5625MB
% 0.16/0.43 % OS : Linux 6.8.0-71-generic
% 0.16/0.43 % CPULimit : 300
% 0.16/0.43 % WCLimit : 300
% 0.16/0.43 % DateTime : Mon Sep 21 09:32:22 UTC 2026
% 0.16/0.43 % CPUTime :
% 0.26/0.59 % Drodi V4.1.1
% 0.36/0.65 % Refutation found
% 0.36/0.65 % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.36/0.65 % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.38/0.68 % Elapsed time: 0.238064 seconds
% 0.38/0.68 % CPU time: 0.533845 seconds
% 0.38/0.68 % Total memory used: 158.203 MB
% 0.38/0.68 % Net memory used: 157.484 MB
%------------------------------------------------------------------------------