%------------------------------------------------------------------------------
% File : Drodi---4.1.1
% Problem : PUZ035-6 : TPTP v9.3.1. Released v2.0.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% Computer : n013.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 01:59:57 PM UTC 2026
% Result : Unsatisfiable 0.08s 0.38s
% Output : CNFRefutation 0.08s
% Verified :
% SZS Type : Refutation
% Derivation depth : 5
% Number of leaves : 4
% Syntax : Number of formulae : 17 ( 3 unt; 2 def)
% Number of atoms : 31 ( 0 equ)
% Maximal formula atoms : 2 ( 1 avg)
% Number of connectives : 32 ( 18 ~; 12 |; 0 &)
% ( 2 <=>; 0 =>; 0 <=; 0 <~>)
% Maximal formula depth : 5 ( 3 avg)
% Maximal term depth : 2 ( 1 avg)
% Number of predicates : 4 ( 3 usr; 3 prp; 0-1 aty)
% Number of functors : 5 ( 5 usr; 4 con; 0-2 aty)
% Number of variables : 12 ( 12 !; 0 ?)
% Comments :
%------------------------------------------------------------------------------
fof(f1,axiom,
! [P] :
( truth(isa(P,knave))
| truth(isa(P,knight)) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f11,negated_conjecture,
! [X,Y] :
( ~ truth(isa(other,Y))
| ~ truth(isa(asked,X)) ),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
fof(f12,plain,
! [X0] :
( truth(isa(X0,knave))
| truth(isa(X0,knight)) ),
inference(cnf_transformation,[status(thm)],[f1]) ).
fof(f24,plain,
( ! [Y] : ~ truth(isa(other,Y))
| ! [X] : ~ truth(isa(asked,X)) ),
inference(miniscoping,[status(thm)],[f11]) ).
fof(f25,plain,
! [X0,X1] :
( ~ truth(isa(other,X1))
| ~ truth(isa(asked,X0)) ),
inference(cnf_transformation,[status(thm)],[f24]) ).
fof(f26,definition,
! [X0] :
( sQ0_spl
<=> ~ truth(isa(asked,X0)) ),
introduced(definition,[new_symbols(definition,[sQ0_spl])],[split_symbol_definition]) ).
fof(f27,plain,
! [X0] :
( ~ sQ0_spl
| ~ truth(isa(asked,X0)) ),
inference(component_clause,[status(thm)],[f26]) ).
fof(f29,definition,
! [X1] :
( sQ1_spl
<=> ~ truth(isa(other,X1)) ),
introduced(definition,[new_symbols(definition,[sQ1_spl])],[split_symbol_definition]) ).
fof(f30,plain,
! [X0] :
( ~ sQ1_spl
| ~ truth(isa(other,X0)) ),
inference(component_clause,[status(thm)],[f29]) ).
fof(f32,plain,
( sQ1_spl
| sQ0_spl ),
inference(split_clause,[status(thm)],[f25,f26,f29]) ).
fof(f33,plain,
( ~ sQ0_spl
| truth(isa(asked,knight)) ),
inference(resolution,[status(thm)],[f12,f27]) ).
fof(f34,plain,
( ~ sQ0_spl
| $false ),
inference(forward_subsumption_resolution,[status(thm)],[f33,f27]) ).
fof(f35,plain,
~ sQ0_spl,
inference(contradiction_clause,[status(thm)],[f34]) ).
fof(f36,plain,
( ~ sQ1_spl
| truth(isa(other,knight)) ),
inference(resolution,[status(thm)],[f30,f12]) ).
fof(f37,plain,
( ~ sQ1_spl
| $false ),
inference(forward_subsumption_resolution,[status(thm)],[f36,f30]) ).
fof(f38,plain,
~ sQ1_spl,
inference(contradiction_clause,[status(thm)],[f37]) ).
fof(f39,plain,
$false,
inference(sat_refutation,[status(thm)],[f32,f35,f38]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : PUZ035-6 : TPTP v9.3.1. Released v2.0.0.
% 0.00/0.04 % Command : drodi -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.08/0.35 % Computer : n013.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 : Mon Sep 21 03:46:06 UTC 2026
% 0.08/0.35 % CPUTime :
% 0.08/0.36 % Drodi V4.1.1
% 0.08/0.38 % Refutation found
% 0.08/0.38 % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.08/0.38 % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.13/0.40 % Elapsed time: 0.045292 seconds
% 0.13/0.40 % CPU time: 0.112763 seconds
% 0.13/0.40 % Total memory used: 16.613 MB
% 0.13/0.40 % Net memory used: 16.130 MB
%------------------------------------------------------------------------------