%------------------------------------------------------------------------------
% File : Drodi---4.1.1
% Problem : FLD059-3 : TPTP v9.3.1. Bugfixed v2.1.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% Computer : n016.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 12:22:05 PM UTC 2026
% Result : Unsatisfiable 0.14s 5.49s
% Output : CNFRefutation 0.14s
% Verified :
% SZS Type : Refutation
% Derivation depth : 7
% Number of leaves : 10
% Syntax : Number of formulae : 36 ( 9 unt; 3 def)
% Number of atoms : 85 ( 0 equ)
% Maximal formula atoms : 4 ( 2 avg)
% Number of connectives : 97 ( 48 ~; 46 |; 0 &)
% ( 3 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 10 ( 4 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of predicates : 7 ( 6 usr; 4 prp; 0-3 aty)
% Number of functors : 3 ( 3 usr; 2 con; 0-2 aty)
% Number of variables : 43 ( 43 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f3,axiom,
! [X] :
( ~ defined(X)
| sum(additive_identity,X,X) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f19,axiom,
! [X,Y] :
( ~ defined(Y)
| ~ defined(X)
| sum(X,Y,add(X,Y)) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f22,axiom,
! [X,Z,Y] :
( ~ less_or_equal(Y,Z)
| ~ less_or_equal(X,Y)
| less_or_equal(X,Z) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f24,axiom,
! [U,V,X,Y,Z] :
( ~ sum(Y,Z,V)
| ~ sum(X,Z,U)
| ~ less_or_equal(X,Y)
| less_or_equal(U,V) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f27,hypothesis,
defined(a),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f28,negated_conjecture,
less_or_equal(additive_identity,a),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f29,negated_conjecture,
~ less_or_equal(additive_identity,add(a,a)),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f34,plain,
! [X0] :
( ~ defined(X0)
| sum(additive_identity,X0,X0) ),
inference(cnf_transformation,[status(thm)],[f3]) ).
fof(f56,plain,
! [Y] :
( ~ defined(Y)
| ! [X] :
( ~ defined(X)
| sum(X,Y,add(X,Y)) ) ),
inference(miniscoping,[status(thm)],[f19]) ).
fof(f57,plain,
! [X0,X1] :
( ~ defined(X1)
| ~ defined(X0)
| sum(X0,X1,add(X0,X1)) ),
inference(cnf_transformation,[status(thm)],[f56]) ).
fof(f61,plain,
! [Z,Y] :
( ~ less_or_equal(Y,Z)
| ! [X] :
( ~ less_or_equal(X,Y)
| less_or_equal(X,Z) ) ),
inference(miniscoping,[status(thm)],[f22]) ).
fof(f62,plain,
! [X0,X1,X2] :
( ~ less_or_equal(X2,X1)
| ~ less_or_equal(X0,X2)
| less_or_equal(X0,X1) ),
inference(cnf_transformation,[status(thm)],[f61]) ).
fof(f65,plain,
! [V,Y,Z] :
( ~ sum(Y,Z,V)
| ! [U,X] :
( ~ sum(X,Z,U)
| ~ less_or_equal(X,Y)
| less_or_equal(U,V) ) ),
inference(miniscoping,[status(thm)],[f24]) ).
fof(f66,plain,
! [X0,X1,X2,X3,X4] :
( ~ sum(X3,X4,X1)
| ~ sum(X2,X4,X0)
| ~ less_or_equal(X2,X3)
| less_or_equal(X0,X1) ),
inference(cnf_transformation,[status(thm)],[f65]) ).
fof(f69,plain,
defined(a),
inference(cnf_transformation,[status(thm)],[f27]) ).
fof(f70,plain,
less_or_equal(additive_identity,a),
inference(cnf_transformation,[status(thm)],[f28]) ).
fof(f71,plain,
~ less_or_equal(additive_identity,add(a,a)),
inference(cnf_transformation,[status(thm)],[f29]) ).
fof(f72,plain,
! [X0] :
( ~ less_or_equal(a,X0)
| less_or_equal(additive_identity,X0) ),
inference(resolution,[status(thm)],[f62,f70]) ).
fof(f75,plain,
! [X0,X1,X2] :
( ~ sum(a,X2,X1)
| ~ sum(additive_identity,X2,X0)
| less_or_equal(X0,X1) ),
inference(resolution,[status(thm)],[f66,f70]) ).
fof(f76,plain,
! [X0,X1] :
( ~ defined(X1)
| ~ defined(a)
| ~ sum(additive_identity,X1,X0)
| less_or_equal(X0,add(a,X1)) ),
inference(resolution,[status(thm)],[f75,f57]) ).
fof(f77,definition,
! [X0,X1] :
( sQ0_spl
<=> ( ~ defined(X1)
| ~ sum(additive_identity,X1,X0)
| less_or_equal(X0,add(a,X1)) ) ),
introduced(definition,[new_symbols(definition,[sQ0_spl])],[split_symbol_definition]) ).
fof(f78,plain,
! [X0,X1] :
( ~ sQ0_spl
| ~ defined(X1)
| ~ sum(additive_identity,X1,X0)
| less_or_equal(X0,add(a,X1)) ),
inference(component_clause,[status(thm)],[f77]) ).
fof(f80,definition,
( sQ1_spl
<=> defined(a) ),
introduced(definition,[new_symbols(definition,[sQ1_spl])],[split_symbol_definition]) ).
fof(f82,plain,
( sQ1_spl
| ~ defined(a) ),
inference(component_clause,[status(thm)],[f80]) ).
fof(f83,plain,
( ~ sQ1_spl
| sQ0_spl ),
inference(split_clause,[status(thm)],[f76,f77,f80]) ).
fof(f85,plain,
! [X0] :
( ~ sQ0_spl
| ~ sum(additive_identity,a,X0)
| less_or_equal(X0,add(a,a)) ),
inference(resolution,[status(thm)],[f78,f69]) ).
fof(f88,plain,
( ~ sQ0_spl
| ~ defined(a)
| less_or_equal(a,add(a,a)) ),
inference(resolution,[status(thm)],[f85,f34]) ).
fof(f90,definition,
( sQ2_spl
<=> less_or_equal(a,add(a,a)) ),
introduced(definition,[new_symbols(definition,[sQ2_spl])],[split_symbol_definition]) ).
fof(f91,plain,
( ~ sQ2_spl
| less_or_equal(a,add(a,a)) ),
inference(component_clause,[status(thm)],[f90]) ).
fof(f93,plain,
( ~ sQ0_spl
| ~ sQ1_spl
| sQ2_spl ),
inference(split_clause,[status(thm)],[f88,f90,f80,f77]) ).
fof(f101,plain,
( sQ1_spl
| $false ),
inference(forward_subsumption_resolution,[status(thm)],[f82,f69]) ).
fof(f102,plain,
sQ1_spl,
inference(contradiction_clause,[status(thm)],[f101]) ).
fof(f103,plain,
( ~ sQ2_spl
| less_or_equal(additive_identity,add(a,a)) ),
inference(resolution,[status(thm)],[f91,f72]) ).
fof(f107,plain,
( ~ sQ2_spl
| $false ),
inference(forward_subsumption_resolution,[status(thm)],[f103,f71]) ).
fof(f108,plain,
~ sQ2_spl,
inference(contradiction_clause,[status(thm)],[f107]) ).
fof(f109,plain,
$false,
inference(sat_refutation,[status(thm)],[f83,f93,f102,f108]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.04 % Problem : FLD059-3 : TPTP v9.3.1. Bugfixed v2.1.0.
% 0.00/0.06 % Command : drodi -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.14/5.44 % Computer : n016.cluster.edu
% 0.14/5.44 % Model : x86_64 x86_64
% 0.14/5.44 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/5.44 % Memory : 8046.5625MB
% 0.14/5.44 % OS : Linux 6.8.0-71-generic
% 0.14/5.44 % CPULimit : 300
% 0.14/5.44 % WCLimit : 300
% 0.14/5.44 % DateTime : Mon Sep 21 15:48:14 UTC 2026
% 0.14/5.45 % CPUTime :
% 0.14/5.46 % Drodi V4.1.1
% 0.14/5.49 % Refutation found
% 0.14/5.49 % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.14/5.49 % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.20/5.55 % Elapsed time: 0.092917 seconds
% 0.20/5.55 % CPU time: 0.113555 seconds
% 0.20/5.55 % Total memory used: 4.660 MB
% 0.20/5.55 % Net memory used: 4.615 MB
%------------------------------------------------------------------------------