%------------------------------------------------------------------------------
% File : Drodi-SAT---4.1.1
% Problem : SET063-7 : TPTP v9.3.1. Bugfixed v2.1.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% Computer : n008.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 02:11:24 PM UTC 2026
% Result : Unsatisfiable 0.10s 0.40s
% Output : Assurance 0s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : SET063-7 : TPTP v9.3.1. Bugfixed v2.1.0.
% 0.00/0.03 % Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.10/0.36 % Computer : n008.cluster.edu
% 0.10/0.36 % Model : x86_64 x86_64
% 0.10/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.36 % Memory : 8046.5625MB
% 0.10/0.36 % OS : Linux 6.8.0-71-generic
% 0.10/0.36 % CPULimit : 300
% 0.10/0.36 % WCLimit : 300
% 0.10/0.36 % DateTime : Mon Sep 21 04:49:41 UTC 2026
% 0.10/0.36 % CPUTime :
% 0.10/0.38 % Drodi V4.1.1
% 0.10/0.40 % Refutation found
% 0.10/0.40 % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.10/0.40 % SZS output start CNFRefutation for theBenchmark
% 0.10/0.40 fof(f7,axiom,(
% 0.10/0.40 (![X,Y]: (( ~ subclass(X,Y)| ~ subclass(Y,X)| X = Y ) ))),
% 0.10/0.40 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.10/0.40 fof(f104,axiom,(
% 0.10/0.40 (![X]: (subclass(null_class,X) ))),
% 0.10/0.40 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.10/0.40 fof(f105,negated_conjecture,(
% 0.10/0.40 subclass(x,null_class) ),
% 0.10/0.40 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.10/0.40 fof(f106,negated_conjecture,(
% 0.10/0.40 x != null_class ),
% 0.10/0.40 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.10/0.40 fof(f114,plain,(
% 0.10/0.40 ![X0,X1]: (~subclass(X0,X1)|~subclass(X1,X0)|X0=X1)),
% 0.10/0.40 inference(cnf_transformation,[status(thm)],[f7])).
% 0.10/0.40 fof(f229,plain,(
% 0.10/0.40 ![X0]: (subclass(null_class,X0))),
% 0.10/0.40 inference(cnf_transformation,[status(thm)],[f104])).
% 0.10/0.40 fof(f230,plain,(
% 0.10/0.40 subclass(x,null_class)),
% 0.10/0.40 inference(cnf_transformation,[status(thm)],[f105])).
% 0.10/0.40 fof(f231,plain,(
% 0.10/0.40 ~x=null_class),
% 0.10/0.40 inference(cnf_transformation,[status(thm)],[f106])).
% 0.10/0.40 fof(f240,plain,(
% 0.10/0.40 ~subclass(null_class,x)|null_class=x),
% 0.10/0.40 inference(resolution,[status(thm)],[f114,f230])).
% 0.10/0.40 fof(f243,definition,(
% 0.10/0.40 sQ0_spl <=> (subclass(null_class,x))),
% 0.10/0.40 introduced(definition,[new_symbols(definition,[sQ0_spl])],[split_symbol_definition])).
% 0.10/0.40 fof(f245,plain,(
% 0.10/0.40 ~subclass(null_class,x)|sQ0_spl),
% 0.10/0.40 inference(component_clause,[status(thm)],[f243])).
% 0.10/0.40 fof(f246,definition,(
% 0.10/0.40 sQ1_spl <=> (null_class=x)),
% 0.10/0.40 introduced(definition,[new_symbols(definition,[sQ1_spl])],[split_symbol_definition])).
% 0.10/0.40 fof(f247,plain,(
% 0.10/0.40 null_class=x|~sQ1_spl),
% 0.10/0.40 inference(component_clause,[status(thm)],[f246])).
% 0.10/0.40 fof(f249,plain,(
% 0.10/0.40 ~sQ0_spl|sQ1_spl),
% 0.10/0.40 inference(split_clause,[status(thm)],[f240,f243,f246])).
% 0.10/0.40 fof(f250,plain,(
% 0.10/0.40 $false|sQ0_spl),
% 0.10/0.40 inference(forward_subsumption_resolution,[status(thm)],[f245,f229])).
% 0.10/0.40 fof(f251,plain,(
% 0.10/0.40 sQ0_spl),
% 0.10/0.40 inference(contradiction_clause,[status(thm)],[f250])).
% 0.10/0.40 fof(f252,plain,(
% 0.10/0.40 $false|~sQ1_spl),
% 0.10/0.40 inference(forward_subsumption_resolution,[status(thm)],[f247,f231])).
% 0.10/0.40 fof(f253,plain,(
% 0.10/0.40 ~sQ1_spl),
% 0.10/0.40 inference(contradiction_clause,[status(thm)],[f252])).
% 0.10/0.40 fof(f254,plain,(
% 0.10/0.40 $false),
% 0.10/0.40 inference(sat_refutation,[status(thm)],[f249,f251,f253])).
% 0.10/0.40 % SZS output end CNFRefutation for theBenchmark.p
% 0.10/0.43 % Elapsed time: 0.057077 seconds
% 0.10/0.43 % CPU time: 0.158054 seconds
% 0.10/0.43 % Total memory used: 105.067 MB
% 0.10/0.43 % Net memory used: 105.001 MB
%------------------------------------------------------------------------------