%------------------------------------------------------------------------------
% File : Drodi-SAT---4.1.1
% Problem : SET152-6 : 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 : n011.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 02:11:40 PM UTC 2026
% Result : Unsatisfiable 0.17s 0.54s
% Output : Assurance 0s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.05 % Problem : SET152-6 : TPTP v9.3.1. Bugfixed v2.1.0.
% 0.00/0.07 % Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.17/0.43 % Computer : n011.cluster.edu
% 0.17/0.43 % Model : x86_64 x86_64
% 0.17/0.43 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.17/0.43 % Memory : 8046.5625MB
% 0.17/0.43 % OS : Linux 6.8.0-71-generic
% 0.17/0.43 % CPULimit : 300
% 0.17/0.43 % WCLimit : 300
% 0.17/0.43 % DateTime : Mon Sep 21 04:56:55 UTC 2026
% 0.17/0.43 % CPUTime :
% 0.17/0.45 % Drodi V4.1.1
% 0.17/0.54 % Refutation found
% 0.17/0.54 % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.17/0.54 % SZS output start CNFRefutation for theBenchmark
% 0.17/0.54 fof(f1,axiom,(
% 0.17/0.54 (![X,Y,U]: (( ~ subclass(X,Y)| ~ member(U,X)| member(U,Y) ) ))),
% 0.17/0.54 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.17/0.54 fof(f4,axiom,(
% 0.17/0.54 (![X]: (subclass(X,universal_class) ))),
% 0.17/0.54 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.17/0.54 fof(f24,axiom,(
% 0.17/0.54 (![Z,X]: (( ~ member(Z,complement(X))| ~ member(Z,X) ) ))),
% 0.17/0.54 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.17/0.54 fof(f66,axiom,(
% 0.17/0.54 (![X]: (( X = null_class| member(regular(X),X) ) ))),
% 0.17/0.54 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.17/0.54 fof(f113,negated_conjecture,(
% 0.17/0.54 complement(universal_class) != null_class ),
% 0.17/0.54 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.17/0.54 fof(f114,plain,(
% 0.17/0.54 ![Y,U]: ((![X]: (~subclass(X,Y)|~member(U,X)))|member(U,Y))),
% 0.17/0.54 inference(miniscoping,[status(thm)],[f1])).
% 0.17/0.54 fof(f115,plain,(
% 0.17/0.54 ![X0,X1,X2]: (~subclass(X0,X1)|~member(X2,X0)|member(X2,X1))),
% 0.17/0.54 inference(cnf_transformation,[status(thm)],[f114])).
% 0.17/0.54 fof(f118,plain,(
% 0.17/0.54 ![X0]: (subclass(X0,universal_class))),
% 0.17/0.54 inference(cnf_transformation,[status(thm)],[f4])).
% 0.17/0.54 fof(f146,plain,(
% 0.17/0.54 ![X0,X1]: (~member(X0,complement(X1))|~member(X0,X1))),
% 0.17/0.54 inference(cnf_transformation,[status(thm)],[f24])).
% 0.17/0.54 fof(f188,plain,(
% 0.17/0.54 ![X0]: (X0=null_class|member(regular(X0),X0))),
% 0.17/0.54 inference(cnf_transformation,[status(thm)],[f66])).
% 0.17/0.54 fof(f245,plain,(
% 0.17/0.54 ~complement(universal_class)=null_class),
% 0.17/0.54 inference(cnf_transformation,[status(thm)],[f113])).
% 0.17/0.54 fof(f249,plain,(
% 0.17/0.54 ![X0,X1]: (~member(X0,X1)|member(X0,universal_class))),
% 0.17/0.54 inference(resolution,[status(thm)],[f118,f115])).
% 0.17/0.54 fof(f351,plain,(
% 0.17/0.54 ![X0]: (complement(X0)=null_class|~member(regular(complement(X0)),X0))),
% 0.17/0.54 inference(resolution,[status(thm)],[f188,f146])).
% 0.17/0.54 fof(f353,plain,(
% 0.17/0.54 ![X0]: (member(regular(X0),universal_class)|X0=null_class)),
% 0.17/0.54 inference(resolution,[status(thm)],[f249,f188])).
% 0.17/0.54 fof(f486,plain,(
% 0.17/0.54 complement(universal_class)=null_class|complement(universal_class)=null_class),
% 0.17/0.54 inference(resolution,[status(thm)],[f353,f351])).
% 0.17/0.54 fof(f492,plain,(
% 0.17/0.54 complement(universal_class)=null_class),
% 0.17/0.54 inference(duplicate_literals_removal,[status(thm)],[f486])).
% 0.17/0.54 fof(f493,plain,(
% 0.17/0.54 $false),
% 0.17/0.54 inference(forward_subsumption_resolution,[status(thm)],[f492,f245])).
% 0.17/0.54 % SZS output end CNFRefutation for theBenchmark.p
% 0.82/0.56 % Elapsed time: 0.106166 seconds
% 0.82/0.56 % CPU time: 0.529342 seconds
% 0.82/0.56 % Total memory used: 104.854 MB
% 0.82/0.56 % Net memory used: 104.326 MB
%------------------------------------------------------------------------------