%------------------------------------------------------------------------------
% File : LisaST---0.9
% Problem : GRP523-1 : TPTP v9.3.1. Released v2.6.0.
% Transfm : none
% Format : tptp:raw
% Command : casc-portfolio.sh -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% Computer : n007.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 : Sun Sep 27 07:23:56 AM UTC 2026
% Result : Unsatisfiable 54.90s 8.51s
% Output : CNFRefutation 54.90s
% Verified :
% SZS Type : Refutation
% Derivation depth : 18
% Number of leaves : 4
% Syntax : Number of clauses : 41 ( 41 unt; 0 nHn; 6 RR)
% Number of literals : 41 ( 40 equ; 5 neg)
% Maximal clause size : 1 ( 1 avg)
% Maximal term depth : 6 ( 2 avg)
% Number of predicates : 2 ( 0 usr; 1 prp; 0-2 aty)
% Number of functors : 6 ( 6 usr; 3 con; 0-2 aty)
% Number of variables : 78 ( 0 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(single_axiom,axiom,
divide(X0,divide(X1,divide(X2,divide(X0,X1)))) = X2 ).
cnf(multiply,axiom,
multiply(X0,X1) = divide(X0,divide(divide(X2,X2),X1)) ).
cnf(inverse,axiom,
inverse(X0) = divide(divide(X1,X1),X0) ).
cnf(prove_these_axioms_3,negated_conjecture,
multiply(multiply(a3,b3),c3) != multiply(a3,multiply(b3,c3)) ).
cnf(c0,plain,
divide(X0,divide(X1,divide(X2,divide(X0,X1)))) = X2,
inference(clausification,[status(esa)],[single_axiom]) ).
cnf(c1,plain,
multiply(X0,X1) = divide(X0,divide(divide(X2,X2),X1)),
inference(clausification,[status(esa)],[multiply]) ).
cnf(c2,plain,
inverse(X0) = divide(divide(X1,X1),X0),
inference(clausification,[status(esa)],[inverse]) ).
cnf(c3,plain,
multiply(multiply(a3,b3),c3) != multiply(a3,multiply(b3,c3)),
inference(clausification,[status(esa)],[prove_these_axioms_3]) ).
cnf(d0,plain,
multiply(X2,X1) = divide(X2,inverse(X1)),
inference(demodulation,[status(thm)],[c1,c2]) ).
cnf(d1,plain,
divide(X1,divide(divide(X2,divide(X0,X1)),X2)) = X0,
inference(superposition,[status(thm)],[c0,c0]) ).
cnf(d2,plain,
divide(X1,inverse(divide(X0,X1))) = X0,
inference(superposition,[status(thm)],[c2,d1]) ).
cnf(d3,plain,
multiply(X0,divide(X1,X0)) = X1,
inference(demodulation,[status(thm)],[d2,d0]) ).
cnf(d4,plain,
multiply(inverse(X1),multiply(X0,X1)) = X0,
inference(superposition,[status(thm)],[d0,d3]) ).
cnf(d5,plain,
multiply(inverse(divide(X1,X0)),X1) = X0,
inference(superposition,[status(thm)],[d3,d4]) ).
cnf(d6,plain,
inverse(X1) = divide(inverse(divide(X0,X0)),X1),
inference(superposition,[status(thm)],[c2,c2]) ).
cnf(d7,plain,
multiply(inverse(divide(X0,X0)),X1) = inverse(inverse(X1)),
inference(superposition,[status(thm)],[d6,d0]) ).
cnf(d8,plain,
X0 = inverse(inverse(X0)),
inference(superposition,[status(thm)],[d5,d7]) ).
cnf(d9,plain,
inverse(inverse(X1)) = multiply(divide(X0,X0),X1),
inference(superposition,[status(thm)],[d0,c2]) ).
cnf(d10,plain,
X0 = multiply(divide(X1,X1),X0),
inference(demodulation,[status(thm)],[d9,d8]) ).
cnf(d11,plain,
divide(X1,divide(X0,X0)) = X1,
inference(superposition,[status(thm)],[d10,d3]) ).
cnf(d12,plain,
divide(X1,divide(X1,X0)) = X0,
inference(superposition,[status(thm)],[d11,c0]) ).
cnf(d13,plain,
multiply(inverse(X1),X0) = divide(X0,X1),
inference(superposition,[status(thm)],[d12,d5]) ).
cnf(d14,plain,
divide(multiply(X1,X0),X0) = X1,
inference(demodulation,[status(thm)],[d4,d13]) ).
cnf(d15,plain,
multiply(X1,X0) = multiply(X0,X1),
inference(superposition,[status(thm)],[d14,d3]) ).
cnf(d16,plain,
divide(X0,divide(inverse(X1),divide(X2,multiply(X0,X1)))) = X2,
inference(superposition,[status(thm)],[d0,c0]) ).
cnf(d17,plain,
divide(X1,divide(inverse(X2),X0)) = multiply(X0,multiply(X1,X2)),
inference(superposition,[status(thm)],[d14,d16]) ).
cnf(d18,plain,
inverse(divide(X1,divide(X2,divide(divide(X0,X0),X1)))) = X2,
inference(superposition,[status(thm)],[c0,c2]) ).
cnf(d19,plain,
inverse(divide(X1,divide(X2,inverse(X1)))) = X2,
inference(demodulation,[status(thm)],[d18,c2]) ).
cnf(d20,plain,
inverse(divide(X1,multiply(X0,X1))) = X0,
inference(demodulation,[status(thm)],[d19,d0]) ).
cnf(d21,plain,
multiply(divide(X0,X1),X1) = X0,
inference(superposition,[status(thm)],[d12,d3]) ).
cnf(d22,plain,
inverse(divide(X1,X0)) = divide(X0,X1),
inference(superposition,[status(thm)],[d21,d20]) ).
cnf(d23,plain,
inverse(multiply(X0,X1)) = divide(inverse(X1),X0),
inference(superposition,[status(thm)],[d0,d22]) ).
cnf(d24,plain,
multiply(X2,multiply(X0,X1)) = divide(X2,divide(inverse(X1),X0)),
inference(superposition,[status(thm)],[d23,d0]) ).
cnf(d25,plain,
multiply(X0,multiply(X2,X1)) = multiply(X2,multiply(X0,X1)),
inference(superposition,[status(thm)],[d24,d17]) ).
cnf(d26,plain,
multiply(c3,multiply(a3,b3)) != multiply(a3,multiply(b3,c3)),
inference(demodulation,[status(thm)],[c3,d15]) ).
cnf(d27,plain,
multiply(a3,multiply(c3,b3)) != multiply(a3,multiply(b3,c3)),
inference(demodulation,[status(thm)],[d26,d25]) ).
cnf(d28,plain,
multiply(a3,multiply(b3,c3)) != multiply(a3,multiply(b3,c3)),
inference(demodulation,[status(thm)],[d27,d15]) ).
cnf(d29,plain,
divide(X0,multiply(X0,X1)) = inverse(X1),
inference(superposition,[status(thm)],[d0,d12]) ).
cnf(d30,plain,
divide(X0,divide(inverse(X1),inverse(X1))) = X0,
inference(superposition,[status(thm)],[d29,d16]) ).
cnf(d31,plain,
X0 = X0,
inference(demodulation,[status(thm)],[d30,d11]) ).
cnf(d32,plain,
$false,
inference(resolution,[status(thm)],[d31,d28]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.05 % Problem : GRP523-1 : TPTP v9.3.1. Released v2.6.0.
% 0.00/0.07 % Command : casc-portfolio.sh -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.16/0.43 % Computer : n007.cluster.edu
% 0.16/0.43 % Model : x86_64 x86_64
% 0.16/0.43 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.16/0.43 % Memory : 8046.5625MB
% 0.16/0.43 % OS : Linux 6.8.0-71-generic
% 0.16/0.44 % CPULimit : 300
% 0.16/0.44 % WCLimit : 300
% 0.16/0.44 % DateTime : Fri Sep 25 14:56:08 UTC 2026
% 0.16/0.44 % CPUTime :
% 0.16/0.44 Running casc-portfolio.sh -t 300 /export/starexec/sandbox/benchmark/theBenchmark.p
% 54.90/8.51 % SZS status Unsatisfiable for theBenchmark.p
% 54.90/8.51 % SZS output start CNFRefutation for theBenchmark.p
% See solution above
%------------------------------------------------------------------------------