%------------------------------------------------------------------------------
% File : Drodi-SAT---4.1.1
% Problem : NUM228-1 : 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 : 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 01:42:23 PM UTC 2026
% Result : Unsatisfiable 0.13s 16.05s
% Output : Assurance 0s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : NUM228-1 : TPTP v9.3.1. Bugfixed v2.1.0.
% 0.00/0.04 % Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.13/15.98 % Computer : n026.cluster.edu
% 0.13/15.98 % Model : x86_64 x86_64
% 0.13/15.98 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/15.98 % Memory : 8046.5625MB
% 0.13/15.98 % OS : Linux 6.8.0-71-generic
% 0.13/15.98 % CPULimit : 300
% 0.13/15.98 % WCLimit : 300
% 0.13/15.98 % DateTime : Mon Sep 21 02:16:54 UTC 2026
% 0.13/15.99 % CPUTime :
% 0.13/16.01 % Drodi V4.1.1
% 0.13/16.05 % Refutation found
% 0.13/16.05 % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.13/16.05 % SZS output start CNFRefutation for theBenchmark
% 0.13/16.05 fof(f66,axiom,(
% 0.13/16.05 (![X]: (( X = null_class| member(regular(X),X) ) ))),
% 0.13/16.05 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.13/16.05 fof(f147,axiom,(
% 0.13/16.05 (![X,Z]: (( ~ member(X,recursion_equation_functions(Z))| function(Z) ) ))),
% 0.13/16.05 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.13/16.05 fof(f159,negated_conjecture,(
% 0.13/16.05 ~ function(z) ),
% 0.13/16.05 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.13/16.05 fof(f160,negated_conjecture,(
% 0.13/16.05 recursion_equation_functions(z) != null_class ),
% 0.13/16.05 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.13/16.05 fof(f235,plain,(
% 0.13/16.05 ![X0]: (X0=null_class|member(regular(X0),X0))),
% 0.13/16.05 inference(cnf_transformation,[status(thm)],[f66])).
% 0.13/16.05 fof(f333,plain,(
% 0.13/16.05 ![Z]: ((![X]: ~member(X,recursion_equation_functions(Z)))|function(Z))),
% 0.13/16.05 inference(miniscoping,[status(thm)],[f147])).
% 0.13/16.05 fof(f334,plain,(
% 0.13/16.05 ![X0,X1]: (~member(X0,recursion_equation_functions(X1))|function(X1))),
% 0.13/16.05 inference(cnf_transformation,[status(thm)],[f333])).
% 0.13/16.05 fof(f348,plain,(
% 0.13/16.05 ~function(z)),
% 0.13/16.05 inference(cnf_transformation,[status(thm)],[f159])).
% 0.13/16.05 fof(f349,plain,(
% 0.13/16.05 ~recursion_equation_functions(z)=null_class),
% 0.13/16.05 inference(cnf_transformation,[status(thm)],[f160])).
% 0.13/16.05 fof(f415,plain,(
% 0.13/16.05 ![X0]: (recursion_equation_functions(X0)=null_class|function(X0))),
% 0.13/16.05 inference(resolution,[status(thm)],[f235,f334])).
% 0.13/16.05 fof(f428,plain,(
% 0.13/16.05 recursion_equation_functions(z)=null_class),
% 0.13/16.05 inference(resolution,[status(thm)],[f415,f348])).
% 0.13/16.05 fof(f432,plain,(
% 0.13/16.05 $false),
% 0.13/16.05 inference(forward_subsumption_resolution,[status(thm)],[f428,f349])).
% 0.13/16.05 % SZS output end CNFRefutation for theBenchmark.p
% 0.23/16.07 % Elapsed time: 0.068508 seconds
% 0.23/16.07 % CPU time: 0.188397 seconds
% 0.23/16.07 % Total memory used: 70.855 MB
% 0.23/16.07 % Net memory used: 70.789 MB
%------------------------------------------------------------------------------