#  NLP written by GAMS Convert at 01/12/18 13:34:33
#  
#  Equation counts
#      Total        E        G        L        N        X        C        B
#          2        2        0        0        0        0        0        0
#  
#  Variable counts
#                   x        b        i      s1s      s2s       sc       si
#      Total     cont   binary  integer     sos1     sos2    scont     sint
#          4        4        0        0        0        0        0        0
#  FX      0        0        0        0        0        0        0        0
#  
#  Nonzero counts
#      Total    const       NL      DLL
#          7        1        6        0
# 
#  Reformulation has removed 1 variable and 1 equation


var x2 >= 0;
var x3 >= 0;
var x4 >= 0;

minimize obj: -32.174*(255*log((0.03 + x2 + x3 + x4)/(0.03 + 0.09*x2 + x3 + x4)
    ) + 280*log((0.03 + x3 + x4)/(0.03 + 0.07*x3 + x4)) + 290*log((0.03 + x4)/(
    0.03 + 0.13*x4)));

subject to

e2: 20*(-1 + x2 + x3 + x4)^2 = 0;