%------------------------------------------------------------------------------
% File : Drodi-SAT---4.1.1
% Problem : GRP151-1 : TPTP v9.3.1. Bugfixed v1.2.1.
% Transfm : none
% Format : tptp:raw
% Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% Computer : n020.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 12:36:07 PM UTC 2026
% Result : Unsatisfiable 0.18s 0.48s
% Output : Assurance 0s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.05 % Problem : GRP151-1 : TPTP v9.3.1. Bugfixed v1.2.1.
% 0.00/0.06 % Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.18/0.45 % Computer : n020.cluster.edu
% 0.18/0.45 % Model : x86_64 x86_64
% 0.18/0.45 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.18/0.45 % Memory : 8046.5625MB
% 0.18/0.45 % OS : Linux 6.8.0-71-generic
% 0.18/0.45 % CPULimit : 300
% 0.18/0.45 % WCLimit : 300
% 0.18/0.45 % DateTime : Sun Sep 20 20:03:17 UTC 2026
% 0.18/0.45 % CPUTime :
% 0.18/0.46 % Drodi V4.1.1
% 0.18/0.48 % Refutation found
% 0.18/0.48 % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.18/0.48 % SZS output start CNFRefutation for theBenchmark
% 0.18/0.48 fof(f5,axiom,(
% 0.18/0.48 (![X,Y]: (least_upper_bound(X,Y) = least_upper_bound(Y,X) ))),
% 0.18/0.48 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.18/0.48 fof(f11,axiom,(
% 0.18/0.48 (![X,Y]: (greatest_lower_bound(X,least_upper_bound(X,Y)) = X ))),
% 0.18/0.48 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.18/0.48 fof(f16,negated_conjecture,(
% 0.18/0.48 greatest_lower_bound(a,least_upper_bound(a,b)) != a ),
% 0.18/0.48 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.18/0.48 fof(f21,plain,(
% 0.18/0.48 ![X0,X1]: (least_upper_bound(X0,X1)=least_upper_bound(X1,X0))),
% 0.18/0.48 inference(cnf_transformation,[status(thm)],[f5])).
% 0.18/0.48 fof(f27,plain,(
% 0.18/0.48 ![X0,X1]: (greatest_lower_bound(X0,least_upper_bound(X0,X1))=X0)),
% 0.18/0.48 inference(cnf_transformation,[status(thm)],[f11])).
% 0.18/0.48 fof(f32,plain,(
% 0.18/0.48 ~greatest_lower_bound(a,least_upper_bound(a,b))=a),
% 0.18/0.48 inference(cnf_transformation,[status(thm)],[f16])).
% 0.18/0.48 fof(f33,definition,(
% 0.18/0.48 sF1_fnc=least_upper_bound(a,b)),
% 0.18/0.48 introduced(definition,[new_symbols(definition,[sF1_fnc])],[function_definition])).
% 0.18/0.48 fof(f34,definition,(
% 0.18/0.48 sF0_fnc=greatest_lower_bound(a,sF1_fnc)),
% 0.18/0.48 introduced(definition,[new_symbols(definition,[sF0_fnc])],[function_definition])).
% 0.18/0.48 fof(f35,plain,(
% 0.18/0.48 ~sF0_fnc=a),
% 0.18/0.48 inference(definition_folding,[],[f32,f34,f33])).
% 0.18/0.48 fof(f36,plain,(
% 0.18/0.48 sF1_fnc=least_upper_bound(b,a)),
% 0.18/0.48 inference(forward_demodulation,[status(thm)],[f21,f33])).
% 0.18/0.48 fof(f72,plain,(
% 0.18/0.48 ![X0,X1]: (greatest_lower_bound(X0,least_upper_bound(X1,X0))=X0)),
% 0.18/0.48 inference(paramodulation,[status(thm)],[f21,f27])).
% 0.18/0.48 fof(f78,plain,(
% 0.18/0.48 greatest_lower_bound(a,sF1_fnc)=a),
% 0.18/0.48 inference(paramodulation,[status(thm)],[f36,f72])).
% 0.18/0.48 fof(f88,plain,(
% 0.18/0.48 sF0_fnc=a),
% 0.18/0.48 inference(backward_demodulation,[status(thm)],[f78,f34])).
% 0.18/0.48 fof(f92,plain,(
% 0.18/0.48 $false),
% 0.18/0.48 inference(forward_subsumption_resolution,[status(thm)],[f88,f35])).
% 0.18/0.48 % SZS output end CNFRefutation for theBenchmark.p
% 0.18/0.51 % Elapsed time: 0.054819 seconds
% 0.18/0.51 % CPU time: 0.034723 seconds
% 0.18/0.51 % Total memory used: 259.376 KB
% 0.18/0.51 % Net memory used: 258.288 KB
%------------------------------------------------------------------------------