%------------------------------------------------------------------------------
% File : Drodi-SAT---4.1.1
% Problem : PUZ131+1 : TPTP v9.3.1. Released v4.1.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% Computer : n004.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 02:01:15 PM UTC 2026
% Result : Theorem 0.09s 0.40s
% Output : Assurance 0s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : PUZ131+1 : TPTP v9.3.1. Released v4.1.0.
% 0.00/0.04 % Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.09/0.36 % Computer : n004.cluster.edu
% 0.09/0.36 % Model : x86_64 x86_64
% 0.09/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.36 % Memory : 8046.5625MB
% 0.09/0.36 % OS : Linux 6.8.0-71-generic
% 0.09/0.36 % CPULimit : 300
% 0.09/0.36 % WCLimit : 300
% 0.09/0.36 % DateTime : Mon Sep 21 03:52:07 UTC 2026
% 0.09/0.37 % CPUTime :
% 0.09/0.38 % Drodi V4.1.1
% 0.09/0.40 % Refutation found
% 0.09/0.40 % SZS status Theorem for theBenchmark: Theorem is valid
% 0.09/0.40 % SZS output start CNFRefutation for theBenchmark
% 0.09/0.40 fof(f4,axiom,(
% 0.09/0.40 student(michael) ),
% 0.09/0.40 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.09/0.40 fof(f5,axiom,(
% 0.09/0.40 professor(victor) ),
% 0.09/0.40 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.09/0.40 fof(f6,axiom,(
% 0.09/0.40 course(csc410) ),
% 0.09/0.40 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.09/0.40 fof(f12,axiom,(
% 0.09/0.40 (! [X] :( course(X)=> teaches(coordinatorof(X),X) ) )),
% 0.09/0.40 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.09/0.40 fof(f13,axiom,(
% 0.09/0.40 (! [X,Y] :( ( student(X)& course(Y) )=> ( enrolled(X,Y)=> (! [Z] :( professor(Z)=> ( teaches(Z,Y)=> taughtby(X,Z) ) ) )) ) )),
% 0.09/0.40 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.09/0.40 fof(f14,axiom,(
% 0.09/0.40 enrolled(michael,csc410) ),
% 0.09/0.40 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.09/0.40 fof(f15,axiom,(
% 0.09/0.40 coordinatorof(csc410) = victor ),
% 0.09/0.40 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.09/0.40 fof(f16,conjecture,(
% 0.09/0.40 taughtby(michael,victor) ),
% 0.09/0.40 file('/export/starexec/sandbox2/benchmark/theBenchmark.p')).
% 0.09/0.40 fof(f17,negated_conjecture,(
% 0.09/0.40 ~(taughtby(michael,victor) )),
% 0.09/0.40 inference(negated_conjecture,[status(cth)],[f16])).
% 0.09/0.40 fof(f24,plain,(
% 0.09/0.40 student(michael)),
% 0.09/0.40 inference(cnf_transformation,[status(thm)],[f4])).
% 0.09/0.40 fof(f25,plain,(
% 0.09/0.40 professor(victor)),
% 0.09/0.40 inference(cnf_transformation,[status(thm)],[f5])).
% 0.09/0.40 fof(f26,plain,(
% 0.09/0.40 course(csc410)),
% 0.09/0.40 inference(cnf_transformation,[status(thm)],[f6])).
% 0.09/0.40 fof(f45,plain,(
% 0.09/0.40 ![X]: (~course(X)|teaches(coordinatorof(X),X))),
% 0.09/0.40 inference(pre_NNF_transformation,[status(thm)],[f12])).
% 0.09/0.40 fof(f46,plain,(
% 0.09/0.40 ![X0]: (~course(X0)|teaches(coordinatorof(X0),X0))),
% 0.09/0.40 inference(cnf_transformation,[status(thm)],[f45])).
% 0.09/0.40 fof(f47,plain,(
% 0.09/0.40 ![X,Y]: ((~student(X)|~course(Y))|(~enrolled(X,Y)|(![Z]: (~professor(Z)|(~teaches(Z,Y)|taughtby(X,Z))))))),
% 0.09/0.40 inference(pre_NNF_transformation,[status(thm)],[f13])).
% 0.09/0.40 fof(f48,plain,(
% 0.09/0.40 ![X0,X1,X2]: (~student(X0)|~course(X1)|~enrolled(X0,X1)|~professor(X2)|~teaches(X2,X1)|taughtby(X0,X2))),
% 0.09/0.40 inference(cnf_transformation,[status(thm)],[f47])).
% 0.09/0.40 fof(f49,plain,(
% 0.09/0.40 enrolled(michael,csc410)),
% 0.09/0.40 inference(cnf_transformation,[status(thm)],[f14])).
% 0.09/0.40 fof(f50,plain,(
% 0.09/0.40 coordinatorof(csc410)=victor),
% 0.09/0.40 inference(cnf_transformation,[status(thm)],[f15])).
% 0.09/0.40 fof(f51,plain,(
% 0.09/0.40 ~taughtby(michael,victor)),
% 0.09/0.40 inference(cnf_transformation,[status(thm)],[f17])).
% 0.09/0.40 fof(f53,plain,(
% 0.09/0.40 ![X0,X1]: (~student(X0)|~enrolled(X0,csc410)|~professor(X1)|~teaches(X1,csc410)|taughtby(X0,X1))),
% 0.09/0.40 inference(resolution,[status(thm)],[f26,f48])).
% 0.09/0.40 fof(f68,plain,(
% 0.09/0.40 ~course(csc410)|teaches(victor,csc410)),
% 0.09/0.40 inference(paramodulation,[status(thm)],[f50,f46])).
% 0.09/0.40 fof(f72,plain,(
% 0.09/0.40 teaches(victor,csc410)),
% 0.09/0.40 inference(forward_subsumption_resolution,[status(thm)],[f68,f26])).
% 0.09/0.40 fof(f73,plain,(
% 0.09/0.40 ![X0]: (~student(X0)|~enrolled(X0,csc410)|~professor(victor)|taughtby(X0,victor))),
% 0.09/0.40 inference(resolution,[status(thm)],[f72,f53])).
% 0.09/0.40 fof(f74,plain,(
% 0.09/0.40 ![X0]: (~student(X0)|~enrolled(X0,csc410)|taughtby(X0,victor))),
% 0.09/0.40 inference(forward_subsumption_resolution,[status(thm)],[f73,f25])).
% 0.09/0.40 fof(f80,plain,(
% 0.09/0.40 ~student(michael)|taughtby(michael,victor)),
% 0.09/0.40 inference(resolution,[status(thm)],[f74,f49])).
% 0.09/0.40 fof(f82,plain,(
% 0.09/0.40 taughtby(michael,victor)),
% 0.09/0.40 inference(forward_subsumption_resolution,[status(thm)],[f80,f24])).
% 0.09/0.40 fof(f83,plain,(
% 0.09/0.40 $false),
% 0.09/0.40 inference(forward_subsumption_resolution,[status(thm)],[f82,f51])).
% 0.09/0.40 % SZS output end CNFRefutation for theBenchmark.p
% 0.09/0.42 % Elapsed time: 0.046425 seconds
% 0.09/0.42 % CPU time: 0.140086 seconds
% 0.09/0.42 % Total memory used: 52.213 MB
% 0.09/0.42 % Net memory used: 51.919 MB
%------------------------------------------------------------------------------