%------------------------------------------------------------------------------
% File : CSE_E---1.7
% Problem : PUZ131-10 : TPTP v9.2.1. Released v7.5.0.
% Transfm : none
% Format : tptp:raw
% Command : /export/starexec/sandbox2/solver/bin/lemma_parallel_prover %s --lemma-prover /export/starexec/sandbox2/solver/bin/cse --final-prover /export/starexec/sandbox2/solver/bin/eprover --proof-time %d --global-time-limit %d
% Computer : n001.cluster.edu
% Model : x86_64 x86_64
% CPU : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory : 8042.1875MB
% OS : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit : 300s
% DateTime : Tue May 5 05:03:41 PM UTC 2026
% Result : Unsatisfiable 1.33s 1.75s
% Output : CNFRefutation 1.33s
% Verified :
% SZS Type : Refutation
% Derivation depth : 3
% Number of leaves : 9
% Syntax : Number of clauses : 21 ( 21 unt; 0 nHn; 14 RR)
% Number of literals : 21 ( 20 equ; 2 neg)
% Maximal clause size : 1 ( 1 avg)
% Maximal term depth : 7 ( 2 avg)
% Number of predicates : 2 ( 0 usr; 1 prp; 0-2 aty)
% Number of functors : 12 ( 12 usr; 4 con; 0-4 aty)
% Number of variables : 16 ( 2 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(student_enrolled_taught,axiom,
ifeq(teaches(X1,X2),true,ifeq(enrolled(X3,X2),true,ifeq(course(X2),true,ifeq(professor(X1),true,ifeq(student(X3),true,taughtby(X3,X1),true),true),true),true),true) = true,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',student_enrolled_taught) ).
cnf(michael_type,axiom,
student(michael) = true,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',michael_type) ).
cnf(ifeq_axiom,axiom,
ifeq(X1,X1,X2,X3) = X2,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',ifeq_axiom) ).
cnf(coordinator_teaches,axiom,
ifeq(course(X1),true,teaches(coordinatorof(X1),X1),true) = true,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',coordinator_teaches) ).
cnf(victor_coordinator_csc410_axiom,axiom,
coordinatorof(csc410) = victor,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',victor_coordinator_csc410_axiom) ).
cnf(csc410_type,axiom,
course(csc410) = true,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',csc410_type) ).
cnf(michael_enrolled_csc410_axiom,axiom,
enrolled(michael,csc410) = true,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',michael_enrolled_csc410_axiom) ).
cnf(victor_type,axiom,
professor(victor) = true,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',victor_type) ).
cnf(teaching_conjecture,negated_conjecture,
taughtby(michael,victor) != true,
file('/export/starexec/sandbox2/benchmark/theBenchmark.p',teaching_conjecture) ).
cnf(c_0_9,axiom,
ifeq(teaches(X1,X2),true,ifeq(enrolled(X3,X2),true,ifeq(course(X2),true,ifeq(professor(X1),true,ifeq(student(X3),true,taughtby(X3,X1),true),true),true),true),true) = true,
student_enrolled_taught ).
cnf(c_0_10,axiom,
student(michael) = true,
michael_type ).
cnf(c_0_11,axiom,
ifeq(X1,X1,X2,X3) = X2,
ifeq_axiom ).
cnf(c_0_12,axiom,
ifeq(course(X1),true,teaches(coordinatorof(X1),X1),true) = true,
coordinator_teaches ).
cnf(c_0_13,axiom,
coordinatorof(csc410) = victor,
victor_coordinator_csc410_axiom ).
cnf(c_0_14,axiom,
course(csc410) = true,
csc410_type ).
cnf(c_0_15,plain,
ifeq(teaches(X1,X2),true,ifeq(enrolled(michael,X2),true,ifeq(course(X2),true,ifeq(professor(X1),true,taughtby(michael,X1),true),true),true),true) = true,
inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_9,c_0_10]),c_0_11]) ).
cnf(c_0_16,plain,
teaches(victor,csc410) = true,
inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_12,c_0_13]),c_0_14]),c_0_11]) ).
cnf(c_0_17,axiom,
enrolled(michael,csc410) = true,
michael_enrolled_csc410_axiom ).
cnf(c_0_18,axiom,
professor(victor) = true,
victor_type ).
cnf(c_0_19,negated_conjecture,
taughtby(michael,victor) != true,
teaching_conjecture ).
cnf(c_0_20,plain,
$false,
inference(sr,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(rw,[status(thm)],[inference(spm,[status(thm)],[c_0_15,c_0_16]),c_0_17]),c_0_14]),c_0_18]),c_0_11]),c_0_11]),c_0_11]),c_0_11]),c_0_19]),
[proof] ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12 % Problem : PUZ131-10 : TPTP v9.2.1. Released v7.5.0.
% 0.00/0.12 % Command : /export/starexec/sandbox2/solver/bin/lemma_parallel_prover %s --lemma-prover /export/starexec/sandbox2/solver/bin/cse --final-prover /export/starexec/sandbox2/solver/bin/eprover --proof-time %d --global-time-limit %d
% 0.18/0.34 % Computer : n001.cluster.edu
% 0.18/0.34 % Model : x86_64 x86_64
% 0.18/0.34 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.18/0.34 % Memory : 8042.1875MB
% 0.18/0.34 % OS : Linux 3.10.0-693.el7.x86_64
% 0.18/0.34 % CPULimit : 300
% 0.18/0.34 % WCLimit : 300
% 0.18/0.34 % DateTime : Tue May 5 01:37:33 EDT 2026
% 0.18/0.34 % CPUTime :
% 0.18/0.35 % start to proof: theBenchmark
% 1.33/1.75 % Version : CSE_E---1.7
% 1.33/1.75 % Problem : theBenchmark.p
% 1.33/1.75 % SZS status Unsatisfiable for theBenchmark.p
% 1.33/1.75 % SZS output start CNFRefutation
% See solution above
% 1.33/1.75 % Total time : 1.371s
%------------------------------------------------------------------------------