%------------------------------------------------------------------------------
% File : Drodi-SAT---4.1.1
% Problem : PUZ131-10 : TPTP v9.3.1. Released v7.5.0.
% Transfm : none
% Format : tptp:raw
% Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% Computer : n008.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 : Unsatisfiable 0.08s 0.38s
% Output : Assurance 0s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : PUZ131-10 : TPTP v9.3.1. Released v7.5.0.
% 0.00/0.04 % Command : drodi -satmode(on) -timeout(300) /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.08/0.36 % Computer : n008.cluster.edu
% 0.08/0.36 % Model : x86_64 x86_64
% 0.08/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.08/0.36 % Memory : 8046.5625MB
% 0.08/0.36 % OS : Linux 6.8.0-71-generic
% 0.08/0.36 % CPULimit : 300
% 0.08/0.36 % WCLimit : 300
% 0.08/0.36 % DateTime : Mon Sep 21 03:53:09 UTC 2026
% 0.08/0.36 % CPUTime :
% 0.08/0.37 % Drodi V4.1.1
% 0.08/0.38 % Refutation found
% 0.08/0.38 % SZS status Unsatisfiable for theBenchmark: Theory is unsatisfiable
% 0.08/0.38 % SZS output start CNFRefutation for theBenchmark
% 0.08/0.38 fof(f1,axiom,(
% 0.08/0.38 (![A,B,C]: (ifeq(A,A,B,C) = B ))),
% 0.08/0.38 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.08/0.38 fof(f5,axiom,(
% 0.08/0.38 student(michael) = true ),
% 0.08/0.38 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.08/0.38 fof(f6,axiom,(
% 0.08/0.38 professor(victor) = true ),
% 0.08/0.38 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.08/0.38 fof(f7,axiom,(
% 0.08/0.38 course(csc410) = true ),
% 0.08/0.38 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.08/0.38 fof(f17,axiom,(
% 0.08/0.38 (![X]: (ifeq(course(X),true,teaches(coordinatorof(X),X),true) = true ))),
% 0.08/0.38 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.08/0.38 fof(f18,axiom,(
% 0.08/0.38 (![Z,Y,X]: (ifeq(teaches(Z,Y),true,ifeq(enrolled(X,Y),true,ifeq(course(Y),true,ifeq(professor(Z),true,ifeq(student(X),true,taughtby(X,Z),true),true),true),true),true) = true ))),
% 0.08/0.38 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.08/0.38 fof(f19,axiom,(
% 0.08/0.38 enrolled(michael,csc410) = true ),
% 0.08/0.38 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.08/0.38 fof(f20,axiom,(
% 0.08/0.38 coordinatorof(csc410) = victor ),
% 0.08/0.38 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.08/0.38 fof(f21,negated_conjecture,(
% 0.08/0.38 taughtby(michael,victor) != true ),
% 0.08/0.38 file('/export/starexec/sandbox/benchmark/theBenchmark.p')).
% 0.08/0.38 fof(f22,plain,(
% 0.08/0.38 ![X0,X1,X2]: (ifeq(X0,X0,X1,X2)=X1)),
% 0.08/0.38 inference(cnf_transformation,[status(thm)],[f1])).
% 0.08/0.38 fof(f26,plain,(
% 0.08/0.38 student(michael)=true),
% 0.08/0.38 inference(cnf_transformation,[status(thm)],[f5])).
% 0.08/0.38 fof(f27,plain,(
% 0.08/0.38 professor(victor)=true),
% 0.08/0.38 inference(cnf_transformation,[status(thm)],[f6])).
% 0.08/0.38 fof(f28,plain,(
% 0.08/0.38 course(csc410)=true),
% 0.08/0.38 inference(cnf_transformation,[status(thm)],[f7])).
% 0.08/0.38 fof(f38,plain,(
% 0.08/0.38 ![X0]: (ifeq(course(X0),true,teaches(coordinatorof(X0),X0),true)=true)),
% 0.08/0.38 inference(cnf_transformation,[status(thm)],[f17])).
% 0.08/0.38 fof(f39,plain,(
% 0.08/0.38 ![X0,X1,X2]: (ifeq(teaches(X0,X1),true,ifeq(enrolled(X2,X1),true,ifeq(course(X1),true,ifeq(professor(X0),true,ifeq(student(X2),true,taughtby(X2,X0),true),true),true),true),true)=true)),
% 0.08/0.38 inference(cnf_transformation,[status(thm)],[f18])).
% 0.08/0.38 fof(f40,plain,(
% 0.08/0.38 enrolled(michael,csc410)=true),
% 0.08/0.38 inference(cnf_transformation,[status(thm)],[f19])).
% 0.08/0.38 fof(f41,plain,(
% 0.08/0.38 coordinatorof(csc410)=victor),
% 0.08/0.38 inference(cnf_transformation,[status(thm)],[f20])).
% 0.08/0.38 fof(f42,plain,(
% 0.08/0.38 ~taughtby(michael,victor)=true),
% 0.08/0.38 inference(cnf_transformation,[status(thm)],[f21])).
% 0.08/0.38 fof(f45,plain,(
% 0.08/0.38 ![X0]: (ifeq(teaches(X0,csc410),true,ifeq(true,true,ifeq(course(csc410),true,ifeq(professor(X0),true,ifeq(student(michael),true,taughtby(michael,X0),true),true),true),true),true)=true)),
% 0.08/0.38 inference(paramodulation,[status(thm)],[f40,f39])).
% 0.08/0.38 fof(f48,plain,(
% 0.08/0.38 ![X0]: (ifeq(teaches(X0,csc410),true,ifeq(course(csc410),true,ifeq(professor(X0),true,ifeq(student(michael),true,taughtby(michael,X0),true),true),true),true)=true)),
% 0.08/0.38 inference(forward_demodulation,[status(thm)],[f22,f45])).
% 0.08/0.38 fof(f49,plain,(
% 0.08/0.38 ![X0]: (ifeq(teaches(X0,csc410),true,ifeq(true,true,ifeq(professor(X0),true,ifeq(student(michael),true,taughtby(michael,X0),true),true),true),true)=true)),
% 0.08/0.38 inference(forward_demodulation,[status(thm)],[f28,f48])).
% 0.08/0.38 fof(f50,plain,(
% 0.08/0.38 ![X0]: (ifeq(teaches(X0,csc410),true,ifeq(professor(X0),true,ifeq(student(michael),true,taughtby(michael,X0),true),true),true)=true)),
% 0.08/0.38 inference(forward_demodulation,[status(thm)],[f22,f49])).
% 0.08/0.38 fof(f51,plain,(
% 0.08/0.38 ![X0]: (ifeq(teaches(X0,csc410),true,ifeq(professor(X0),true,ifeq(true,true,taughtby(michael,X0),true),true),true)=true)),
% 0.08/0.38 inference(forward_demodulation,[status(thm)],[f26,f50])).
% 0.08/0.38 fof(f52,plain,(
% 0.08/0.38 ![X0]: (ifeq(teaches(X0,csc410),true,ifeq(professor(X0),true,taughtby(michael,X0),true),true)=true)),
% 0.08/0.38 inference(forward_demodulation,[status(thm)],[f22,f51])).
% 0.08/0.38 fof(f55,plain,(
% 0.08/0.38 ifeq(teaches(victor,csc410),true,ifeq(true,true,taughtby(michael,victor),true),true)=true),
% 0.08/0.38 inference(paramodulation,[status(thm)],[f27,f52])).
% 0.08/0.38 fof(f56,plain,(
% 0.08/0.38 ifeq(teaches(victor,csc410),true,taughtby(michael,victor),true)=true),
% 0.08/0.38 inference(forward_demodulation,[status(thm)],[f22,f55])).
% 0.08/0.38 fof(f339,plain,(
% 0.08/0.38 ifeq(true,true,teaches(coordinatorof(csc410),csc410),true)=true),
% 0.08/0.38 inference(paramodulation,[status(thm)],[f28,f38])).
% 0.08/0.38 fof(f344,plain,(
% 0.08/0.38 teaches(coordinatorof(csc410),csc410)=true),
% 0.08/0.38 inference(forward_demodulation,[status(thm)],[f22,f339])).
% 0.08/0.38 fof(f345,plain,(
% 0.08/0.38 ifeq(true,true,taughtby(michael,victor),true)=true),
% 0.08/0.38 inference(backward_demodulation,[status(thm)],[f347,f56])).
% 0.08/0.38 fof(f347,plain,(
% 0.08/0.38 teaches(victor,csc410)=true),
% 0.08/0.38 inference(forward_demodulation,[status(thm)],[f41,f344])).
% 0.08/0.38 fof(f352,plain,(
% 0.08/0.38 taughtby(michael,victor)=true),
% 0.08/0.38 inference(forward_demodulation,[status(thm)],[f22,f345])).
% 0.08/0.38 fof(f353,plain,(
% 0.08/0.38 $false),
% 0.08/0.38 inference(forward_subsumption_resolution,[status(thm)],[f352,f42])).
% 0.08/0.38 % SZS output end CNFRefutation for theBenchmark.p
% 0.14/0.41 % Elapsed time: 0.044046 seconds
% 0.14/0.41 % CPU time: 0.046786 seconds
% 0.14/0.41 % Total memory used: 2.815 MB
% 0.14/0.41 % Net memory used: 2.803 MB
%------------------------------------------------------------------------------