%------------------------------------------------------------------------------
% File : Drodi-SAT---4.1.1
% Problem : GRP596-1 : TPTP v9.3.1. Bugfixed v2.7.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n015.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 12:36:52 PM UTC 2026
% Result : Unsatisfiable 0.12s 0.40s
% Output : Assurance 0s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02 % Problem : GRP596-1 : TPTP v9.3.1. Bugfixed v2.7.0.
% 0.00/0.03 % Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.09/0.35 % Computer : n015.cluster.edu
% 0.09/0.35 % Model : x86_64 x86_64
% 0.09/0.35 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.35 % Memory : 8046.5625MB
% 0.09/0.35 % OS : Linux 6.8.0-71-generic
% 0.09/0.35 % CPULimit : 300
% 0.09/0.35 % WCLimit : 300
% 0.09/0.35 % DateTime : Sun Sep 20 20:21:05 UTC 2026
% 0.09/0.36 % CPUTime :
% 0.09/0.36 % Drodi V4.1.1
% 0.12/0.40 % Refutation found
% 0.12/0.40 % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.12/0.40 % SZS output start CNFRefutation for theBenchmark
% 0.12/0.40 fof(f1,axiom,(
% 0.12/0.40 (![A,B,C]: (inverse(double_divide(double_divide(A,B),inverse(double_divide(A,inverse(double_divide(C,B)))))) = C ))),
% 0.12/0.40 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.12/0.40 fof(f2,axiom,(
% 0.12/0.40 (![A,B]: (multiply(A,B) = inverse(double_divide(B,A)) ))),
% 0.12/0.40 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.12/0.40 fof(f3,negated_conjecture,(
% 0.12/0.40 multiply(a,b) != multiply(b,a) ),
% 0.12/0.40 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.12/0.40 fof(f4,plain,(
% 0.12/0.40 ![X0,X1,X2]: (inverse(double_divide(double_divide(X0,X1),inverse(double_divide(X0,inverse(double_divide(X2,X1))))))=X2)),
% 0.12/0.40 inference(cnf_transformation,[status(thm)],[f1])).
% 0.12/0.40 fof(f5,plain,(
% 0.12/0.40 ![X0,X1]: (multiply(X0,X1)=inverse(double_divide(X1,X0)))),
% 0.12/0.40 inference(cnf_transformation,[status(thm)],[f2])).
% 0.12/0.40 fof(f6,plain,(
% 0.12/0.40 ~multiply(a,b)=multiply(b,a)),
% 0.12/0.40 inference(cnf_transformation,[status(thm)],[f3])).
% 0.12/0.40 fof(f10,plain,(
% 0.12/0.40 ![X0,X1,X2]: (multiply(inverse(double_divide(X0,inverse(double_divide(X1,X2)))),double_divide(X0,X2))=X1)),
% 0.12/0.40 inference(backward_demodulation,[status(thm)],[f5,f4])).
% 0.12/0.40 fof(f11,plain,(
% 0.12/0.40 ![X0,X1,X2]: (multiply(multiply(inverse(double_divide(X0,X1)),X2),double_divide(X2,X1))=X0)),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f5,f10])).
% 0.12/0.40 fof(f12,plain,(
% 0.12/0.40 ![X0,X1,X2]: (multiply(multiply(multiply(X0,X1),X2),double_divide(X2,X0))=X1)),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f5,f11])).
% 0.12/0.40 fof(f13,plain,(
% 0.12/0.40 ![X0,X1,X2]: (multiply(X0,double_divide(double_divide(X1,X2),multiply(X2,X0)))=X1)),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f12,f12])).
% 0.12/0.40 fof(f14,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(multiply(X0,X1),double_divide(X1,multiply(multiply(X2,X0),X3)))=double_divide(X3,X2))),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f12,f12])).
% 0.12/0.40 fof(f19,plain,(
% 0.12/0.40 ![X0,X1,X2]: (X0=double_divide(multiply(X1,double_divide(X0,multiply(X2,X1))),X2))),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f13,f14])).
% 0.12/0.40 fof(f35,plain,(
% 0.12/0.40 ![X0,X1,X2]: (X0=double_divide(double_divide(multiply(X1,X0),X2),multiply(X2,X1)))),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f14,f19])).
% 0.12/0.40 fof(f37,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(X0,double_divide(X1,multiply(multiply(X2,X3),X0)))=double_divide(multiply(X3,X1),X2))),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f19,f19])).
% 0.12/0.40 fof(f44,plain,(
% 0.12/0.40 ![X0,X1,X2]: (multiply(X0,multiply(X1,double_divide(X2,multiply(X0,X1))))=inverse(X2))),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f19,f5])).
% 0.12/0.40 fof(f58,plain,(
% 0.12/0.40 ![X0,X1,X2]: (multiply(multiply(X0,X1),double_divide(multiply(X1,X2),X0))=inverse(X2))),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f35,f5])).
% 0.12/0.40 fof(f67,plain,(
% 0.12/0.40 ![X0,X1,X2,X3,X4]: (multiply(multiply(X0,X1),double_divide(X1,inverse(X2)))=double_divide(multiply(X3,double_divide(X2,multiply(multiply(X4,X0),X3))),X4))),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f44,f14])).
% 0.12/0.40 fof(f68,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(inverse(X0),double_divide(multiply(X1,double_divide(X0,multiply(multiply(X2,X3),X1))),X2))=X3)),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f44,f12])).
% 0.12/0.40 fof(f75,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(multiply(inverse(X0),X1),double_divide(X1,X2))=multiply(X3,double_divide(X0,multiply(X2,X3))))),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f44,f12])).
% 0.12/0.40 fof(f77,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(multiply(X0,X1),double_divide(X1,inverse(X2)))=double_divide(double_divide(multiply(X0,X2),X3),X3))),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f37,f67])).
% 0.12/0.40 fof(f78,plain,(
% 0.12/0.40 ![X0,X1,X2]: (multiply(inverse(X0),double_divide(double_divide(multiply(X1,X0),X2),X2))=X1)),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f37,f68])).
% 0.12/0.40 fof(f85,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(multiply(X0,multiply(multiply(X1,X2),X3)),double_divide(X2,X0))=inverse(double_divide(X3,X1)))),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f12,f58])).
% 0.12/0.40 fof(f99,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(multiply(inverse(X0),X1),double_divide(X1,multiply(X2,X3)))=double_divide(multiply(X3,X0),X2))),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f58,f12])).
% 0.12/0.40 fof(f100,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(multiply(X0,multiply(multiply(X1,X2),X3)),double_divide(X2,X0))=multiply(X1,X3))),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f5,f85])).
% 0.12/0.40 fof(f105,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(multiply(X0,X1),double_divide(double_divide(multiply(X2,double_divide(X1,X0)),X3),X3))=X2)),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f5,f78])).
% 0.12/0.40 fof(f108,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(inverse(double_divide(X0,X1)),double_divide(double_divide(X2,X3),X3))=multiply(multiply(X1,X2),X0))),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f12,f78])).
% 0.12/0.40 fof(f109,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(inverse(double_divide(multiply(X0,X1),X2)),double_divide(double_divide(inverse(X1),X3),X3))=multiply(X2,X0))),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f58,f78])).
% 0.12/0.40 fof(f119,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (double_divide(double_divide(multiply(X0,X1),X2),X2)=double_divide(double_divide(X0,X3),multiply(X3,inverse(X1))))),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f78,f35])).
% 0.12/0.40 fof(f128,plain,(
% 0.12/0.40 ![X0,X1,X2]: (multiply(multiply(X0,multiply(X1,double_divide(X2,X0))),X2)=X1)),
% 0.12/0.40 inference(backward_demodulation,[status(thm)],[f129,f105])).
% 0.12/0.40 fof(f129,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(multiply(X0,X1),double_divide(double_divide(X2,X3),X3))=multiply(multiply(X0,X2),X1))),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f5,f108])).
% 0.12/0.40 fof(f130,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(multiply(X0,multiply(X1,X2)),double_divide(double_divide(inverse(X2),X3),X3))=multiply(X0,X1))),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f5,f109])).
% 0.12/0.40 fof(f132,plain,(
% 0.12/0.40 ![X0,X1,X2]: (multiply(multiply(X0,inverse(X1)),multiply(X2,X1))=multiply(X0,X2))),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f129,f130])).
% 0.12/0.40 fof(f157,plain,(
% 0.12/0.40 ![X0,X1,X2,X3,X4]: (multiply(multiply(X0,X1),double_divide(X1,multiply(X2,X3)))=double_divide(X3,multiply(X4,multiply(X2,double_divide(X0,X4)))))),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f128,f14])).
% 0.12/0.40 fof(f160,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(multiply(X0,X1),double_divide(X1,multiply(X2,multiply(X0,double_divide(X3,X2)))))=X3)),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f128,f12])).
% 0.12/0.40 fof(f164,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(multiply(X0,inverse(double_divide(X1,X2))),X3)=multiply(X0,multiply(multiply(X2,X3),X1)))),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f12,f132])).
% 0.12/0.40 fof(f185,plain,(
% 0.12/0.40 ![X0,X1,X2]: (multiply(X0,multiply(multiply(X1,X2),double_divide(X2,X0)))=X1)),
% 0.12/0.40 inference(backward_demodulation,[status(thm)],[f201,f128])).
% 0.12/0.40 fof(f188,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(X0,multiply(multiply(multiply(X1,X2),double_divide(X2,X0)),X3))=multiply(X1,X3))),
% 0.12/0.40 inference(backward_demodulation,[status(thm)],[f201,f100])).
% 0.12/0.40 fof(f201,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(multiply(X0,multiply(X1,X2)),X3)=multiply(X0,multiply(multiply(X1,X3),X2)))),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f5,f164])).
% 0.12/0.40 fof(f219,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(X0,multiply(multiply(X1,X2),double_divide(multiply(X2,X3),X0)))=multiply(X1,inverse(X3)))),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f132,f185])).
% 0.12/0.40 fof(f222,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(X0,multiply(X1,double_divide(multiply(multiply(X1,X2),double_divide(X2,X3)),X0)))=X3)),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f185,f185])).
% 0.12/0.40 fof(f233,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(X0,multiply(multiply(multiply(X1,X2),double_divide(X2,X0)),double_divide(X3,X1)))=inverse(X3))),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f185,f44])).
% 0.12/0.40 fof(f248,plain,(
% 0.12/0.40 ![X0,X1]: (multiply(X0,double_divide(X1,X0))=inverse(X1))),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f188,f233])).
% 0.12/0.40 fof(f358,plain,(
% 0.12/0.40 ![X0,X1]: (X0=inverse(double_divide(multiply(X0,X1),inverse(X1))))),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f78,f248])).
% 0.12/0.40 fof(f359,plain,(
% 0.12/0.40 ![X0,X1,X2]: (multiply(multiply(X0,X1),X2)=inverse(double_divide(multiply(X1,X2),X0)))),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f35,f248])).
% 0.12/0.40 fof(f363,plain,(
% 0.12/0.40 ![X0,X1]: (multiply(multiply(X0,X1),inverse(X1))=X0)),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f248,f185])).
% 0.12/0.40 fof(f365,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(multiply(X0,X1),double_divide(X1,inverse(X2)))=double_divide(double_divide(X2,multiply(X3,X0)),X3))),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f248,f14])).
% 0.12/0.40 fof(f381,plain,(
% 0.12/0.40 ![X0,X1,X2]: (multiply(multiply(inverse(X0),X1),double_divide(X1,X2))=double_divide(X0,X2))),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f248,f12])).
% 0.12/0.40 fof(f384,plain,(
% 0.12/0.40 ![X0,X1]: (X0=multiply(inverse(X1),multiply(X0,X1)))),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f5,f358])).
% 0.12/0.40 fof(f387,plain,(
% 0.12/0.40 ![X0,X1,X2]: (multiply(X0,multiply(X1,double_divide(multiply(X1,X2),X0)))=inverse(X2))),
% 0.12/0.40 inference(backward_demodulation,[status(thm)],[f485,f58])).
% 0.12/0.40 fof(f388,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(X0,multiply(X1,double_divide(X1,multiply(multiply(X2,X0),X3))))=double_divide(X3,X2))),
% 0.12/0.40 inference(backward_demodulation,[status(thm)],[f485,f14])).
% 0.12/0.40 fof(f391,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(inverse(X0),multiply(X1,double_divide(X1,multiply(X2,X3))))=double_divide(multiply(X3,X0),X2))),
% 0.12/0.40 inference(backward_demodulation,[status(thm)],[f485,f99])).
% 0.12/0.40 fof(f392,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(inverse(X0),multiply(X1,double_divide(X1,X2)))=multiply(X3,double_divide(X0,multiply(X2,X3))))),
% 0.12/0.40 inference(backward_demodulation,[status(thm)],[f485,f75])).
% 0.12/0.40 fof(f440,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(X0,multiply(X1,multiply(X2,double_divide(multiply(X2,X3),X0))))=multiply(X1,inverse(X3)))),
% 0.12/0.40 inference(backward_demodulation,[status(thm)],[f485,f219])).
% 0.12/0.40 fof(f445,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(X0,multiply(X1,double_divide(X1,multiply(X2,multiply(X0,double_divide(X3,X2))))))=X3)),
% 0.12/0.40 inference(backward_demodulation,[status(thm)],[f485,f160])).
% 0.12/0.40 fof(f450,plain,(
% 0.12/0.40 ![X0,X1,X2,X3,X4]: (multiply(X0,multiply(X1,double_divide(X1,multiply(X2,X3))))=double_divide(X3,multiply(X4,multiply(X2,double_divide(X0,X4)))))),
% 0.12/0.40 inference(backward_demodulation,[status(thm)],[f485,f157])).
% 0.12/0.40 fof(f451,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(X0,multiply(X1,double_divide(X1,inverse(X2))))=double_divide(double_divide(multiply(X0,X2),X3),X3))),
% 0.12/0.40 inference(backward_demodulation,[status(thm)],[f485,f77])).
% 0.12/0.40 fof(f461,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(X0,multiply(X1,double_divide(multiply(X1,multiply(X2,double_divide(X2,X3))),X0)))=X3)),
% 0.12/0.40 inference(backward_demodulation,[status(thm)],[f485,f222])).
% 0.12/0.40 fof(f485,plain,(
% 0.12/0.40 ![X0,X1,X2]: (multiply(multiply(X0,X1),X2)=multiply(X0,multiply(X1,X2)))),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f5,f359])).
% 0.12/0.40 fof(f491,plain,(
% 0.12/0.40 ![X0,X1]: (multiply(X0,multiply(X1,inverse(X1)))=X0)),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f485,f363])).
% 0.12/0.40 fof(f492,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(X0,multiply(X1,double_divide(X1,inverse(X2))))=double_divide(double_divide(X2,multiply(X3,X0)),X3))),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f485,f365])).
% 0.12/0.40 fof(f508,plain,(
% 0.12/0.40 ![X0,X1,X2]: (multiply(inverse(X0),multiply(X1,double_divide(X1,X2)))=double_divide(X0,X2))),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f485,f381])).
% 0.12/0.40 fof(f510,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(X0,multiply(X1,double_divide(X1,multiply(X2,multiply(X0,X3)))))=double_divide(X3,X2))),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f485,f388])).
% 0.12/0.40 fof(f537,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (double_divide(double_divide(X0,multiply(X1,X2)),X1)=double_divide(double_divide(X2,X3),multiply(X3,inverse(X0))))),
% 0.12/0.40 inference(backward_demodulation,[status(thm)],[f540,f119])).
% 0.12/0.40 fof(f540,plain,(
% 0.12/0.40 ![X0,X1,X2]: (double_divide(X0,multiply(X1,X2))=double_divide(multiply(X2,X0),X1))),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f508,f391])).
% 0.12/0.40 fof(f549,plain,(
% 0.12/0.40 ![X0,X1,X2]: (double_divide(X0,X1)=multiply(X2,double_divide(X0,multiply(X1,X2))))),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f508,f392])).
% 0.12/0.40 fof(f599,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(X0,multiply(X1,multiply(X2,double_divide(X3,multiply(X0,X2)))))=multiply(X1,inverse(X3)))),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f540,f440])).
% 0.12/0.40 fof(f607,plain,(
% 0.12/0.40 ![X0,X1,X2]: (multiply(X0,multiply(X1,double_divide(X2,X0)))=multiply(X1,inverse(X2)))),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f549,f599])).
% 0.12/0.40 fof(f615,plain,(
% 0.12/0.40 ![X0,X1]: (double_divide(double_divide(X0,X1),X1)=X0)),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f510,f445])).
% 0.12/0.40 fof(f630,plain,(
% 0.12/0.40 ![X0,X1,X2,X3]: (multiply(X0,multiply(X1,double_divide(X1,multiply(X2,X3))))=double_divide(X3,multiply(X2,inverse(X0))))),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f607,f450])).
% 0.12/0.40 fof(f631,plain,(
% 0.12/0.40 ![X0,X1,X2]: (multiply(X0,X1)=double_divide(double_divide(X1,multiply(X2,X0)),X2))),
% 0.12/0.40 inference(backward_demodulation,[status(thm)],[f632,f492])).
% 0.12/0.40 fof(f632,plain,(
% 0.12/0.40 ![X0,X1,X2]: (multiply(X0,multiply(X1,double_divide(X1,inverse(X2))))=multiply(X0,X2))),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f615,f451])).
% 0.12/0.40 fof(f641,plain,(
% 0.12/0.40 ![X0,X1]: (inverse(multiply(X0,double_divide(X0,X1)))=X1)),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f387,f461])).
% 0.12/0.40 fof(f728,plain,(
% 0.12/0.40 ![X0,X1,X2]: (multiply(X0,X1)=double_divide(double_divide(X0,X2),multiply(X2,inverse(X1))))),
% 0.12/0.40 inference(backward_demodulation,[status(thm)],[f631,f537])).
% 0.12/0.40 fof(f799,plain,(
% 0.12/0.40 ![X0]: (X0=inverse(inverse(X0)))),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f384,f491])).
% 0.12/0.40 fof(f805,plain,(
% 0.12/0.40 ![X0,X1]: (double_divide(X0,X1)=inverse(multiply(X1,X0)))),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f5,f799])).
% 0.12/0.40 fof(f810,plain,(
% 0.12/0.40 ![X0,X1]: (double_divide(double_divide(X0,X1),X0)=X1)),
% 0.12/0.40 inference(backward_demodulation,[status(thm)],[f805,f641])).
% 0.12/0.40 fof(f824,plain,(
% 0.12/0.40 ![X0,X1]: (multiply(X0,double_divide(X0,X1))=inverse(X1))),
% 0.12/0.40 inference(paramodulation,[status(thm)],[f810,f5])).
% 0.12/0.40 fof(f829,plain,(
% 0.12/0.40 ![X0,X1,X2]: (multiply(X0,inverse(multiply(X1,X2)))=double_divide(X2,multiply(X1,inverse(X0))))),
% 0.12/0.40 inference(backward_demodulation,[status(thm)],[f824,f630])).
% 0.12/0.40 fof(f845,plain,(
% 0.12/0.40 ![X0,X1,X2]: (multiply(X0,X1)=multiply(X1,double_divide(double_divide(X0,X2),X2)))),
% 0.12/0.40 inference(backward_demodulation,[status(thm)],[f850,f728])).
% 0.12/0.40 fof(f850,plain,(
% 0.12/0.40 ![X0,X1,X2]: (multiply(X0,double_divide(X1,X2))=double_divide(X1,multiply(X2,inverse(X0))))),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f805,f829])).
% 0.12/0.40 fof(f873,plain,(
% 0.12/0.40 ![X0,X1]: (multiply(X0,X1)=multiply(X1,X0))),
% 0.12/0.40 inference(forward_demodulation,[status(thm)],[f615,f845])).
% 0.12/0.40 fof(f874,plain,(
% 0.12/0.40 $false),
% 0.12/0.40 inference(backward_subsumption_resolution,[status(thm)],[f6,f873])).
% 0.12/0.40 % SZS output end CNFRefutation for theBenchmark.p
% 0.12/0.43 % Elapsed time: 0.062912 seconds
% 0.12/0.43 % CPU time: 0.309664 seconds
% 0.12/0.43 % Total memory used: 13.467 MB
% 0.12/0.43 % Net memory used: 12.833 MB
%------------------------------------------------------------------------------