%------------------------------------------------------------------------------
% File : FindProof---0.1
% Problem : GRP001-4 : TPTP v9.3.1. Released v1.0.0.
% Transfm : none
% Format : tptp:raw
% Command : run_findproof /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 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 : Fri Sep 25 01:24:52 PM UTC 2026
% Result : Unsatisfiable 5.50s 11.31s
% Output : CNFRefutation 5.50s
% Verified :
% SZS Type : Refutation
% Derivation depth : 11
% Number of leaves : 5
% Syntax : Number of clauses : 27 ( 27 unt; 0 nHn; 14 RR)
% Number of literals : 27 ( 26 equ; 6 neg)
% Maximal clause size : 1 ( 1 avg)
% Maximal term depth : 4 ( 1 avg)
% Number of predicates : 2 ( 0 usr; 1 prp; 0-2 aty)
% Number of functors : 5 ( 5 usr; 4 con; 0-2 aty)
% Number of variables : 20 ( 0 sgn)
% Comments :
%------------------------------------------------------------------------------
cnf(t1,axiom,
multiply(a,b) = c,
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
cnf(t9,plain,
multiply(a,b) = c,
inference(orient,[status(thm)],[t1]) ).
cnf(t3,axiom,
multiply(multiply(X1,X2),X3) = multiply(X1,multiply(X2,X3)),
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
cnf(t6,plain,
multiply(multiply(X1,X2),X3) = multiply(X1,multiply(X2,X3)),
inference(orient,[status(thm)],[t3]) ).
cnf(t0,axiom,
multiply(X1,X1) = identity,
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
cnf(t5,plain,
multiply(X1,X1) = identity,
inference(orient,[status(thm)],[t0]) ).
cnf(t8,plain,
multiply(X1,multiply(X1,X2)) = multiply(identity,X2),
inference(cp,[status(thm)],[t6,t5]) ).
cnf(t2,axiom,
multiply(identity,X1) = X1,
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
cnf(t4,plain,
multiply(identity,X1) = X1,
inference(orient,[status(thm)],[t2]) ).
cnf(t26,plain,
multiply(X1,multiply(X1,X2)) = X2,
inference(step,[status(thm)],[t8,t4]) ).
cnf(t11,plain,
multiply(X1,multiply(X1,X2)) = X2,
inference(orient,[status(thm)],[t26]) ).
cnf(t14,plain,
b = multiply(a,c),
inference(cp,[status(thm)],[t11,t9]) ).
cnf(t17,plain,
multiply(a,c) = b,
inference(orient,[status(thm)],[t14]) ).
cnf(t10,plain,
multiply(a,multiply(b,X1)) = multiply(c,X1),
inference(cp,[status(thm)],[t6,t9]) ).
cnf(t19,plain,
multiply(a,multiply(b,X1)) = multiply(c,X1),
inference(orient,[status(thm)],[t10]) ).
cnf(t20,plain,
multiply(c,b) = multiply(a,identity),
inference(cp,[status(thm)],[t19,t5]) ).
cnf(t13,plain,
X1 = multiply(X1,identity),
inference(cp,[status(thm)],[t11,t5]) ).
cnf(t16,plain,
multiply(X1,identity) = X1,
inference(orient,[status(thm)],[t13]) ).
cnf(t27,plain,
multiply(c,b) = a,
inference(step,[status(thm)],[t20,t16]) ).
cnf(t23,plain,
multiply(c,b) = a,
inference(orient,[status(thm)],[t27]) ).
cnf(goal_0,negated_conjecture,
multiply(b,a) != c,
file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).
cnf(g0_0,plain,
multiply(a,b) != c,
inference(rw,[status(thm)],[goal_0,t9]) ).
cnf(g0_1,plain,
multiply(a,b) != multiply(multiply(a,c),a),
inference(rw,[status(thm)],[g0_0,t17]) ).
cnf(g0_2,plain,
multiply(a,b) != multiply(a,multiply(c,a)),
inference(rw,[status(thm)],[g0_1,t6]) ).
cnf(g0_3,plain,
multiply(a,b) != multiply(a,multiply(c,multiply(c,b))),
inference(rw,[status(thm)],[g0_2,t23]) ).
cnf(g0_4,plain,
multiply(a,b) != multiply(a,b),
inference(rw,[status(thm)],[g0_3,t11]) ).
cnf(contradiction_0,plain,
$false,
inference(trivial_inequality_removal,[status(thm)],[g0_4]) ).
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : GRP001-4 : TPTP v9.3.1. Released v1.0.0.
% 0.00/0.04 % Command : run_findproof /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 0.10/10.56 % Computer : n008.cluster.edu
% 0.10/10.56 % Model : x86_64 x86_64
% 0.10/10.56 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/10.56 % Memory : 8046.5625MB
% 0.10/10.56 % OS : Linux 6.8.0-71-generic
% 0.10/10.56 % CPULimit : 300
% 0.10/10.56 % WCLimit : 300
% 0.10/10.56 % DateTime : Wed Sep 23 13:11:06 UTC 2026
% 0.10/10.56 % CPUTime :
% 0.10/10.56 Running run_findproof /export/starexec/sandbox/benchmark/theBenchmark.p 300
% 5.50/11.31 % SZS status Unsatisfiable for /export/starexec/sandbox/benchmark/theBenchmark.p
% 5.50/11.31 % SZS output start CNFRefutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
%------------------------------------------------------------------------------