[Help-glpk] ufopen: too many open files

[Marcos Roberto Silva]

Dear Friends,
I have this error output for my simple C code that read a .mod file and 
the data file and solve the (new) problem at each update of parameter data.
What's wrong?
Thanks.

Marcos Roberto Silva

The API's functions used are (glpk-4.7):

   mpl = mpl_initialize();
   ret = mpl_read_model(mpl, "bi_ap.mod", 0);
   ret = mpl_read_data(mpl, "data");
   ret = mpl_generate(mpl, "ver.txt");
   lp = lpx_extract_prob(mpl);
   lpx_simplex(lp);