[Bug-glpk] GLPK crashes on glp_add_cols

[Dingyuan Wang]

Hello,

glpk crashes on the attached input.
Other solvers says that this problem is not feasible.

GLPSOL: GLPK LP/MIP Solver, v4.65
Parameter(s) specified in the command line:
 --cpxlp problem.lp
Reading problem data from 'problem.lp'...
171 rows, 91 columns, 388 non-zeros
37 integer variables, none of which are binary
265 lines were read
GLPK Integer Optimizer, v4.65
171 rows, 91 columns, 388 non-zeros
37 integer variables, none of which are binary
Preprocessing...
3 rows, 0 columns, 0 non-zeros
0 integer variables, none of which are binary
Scaling...
 A: min|aij| =  1.000e+00  max|aij| =  1.000e+00  ratio =  1.000e+00
Problem data seem to be well scaled
Solving LP relaxation...
GLPK Simplex Optimizer, v4.65
3 rows, 0 columns, 0 non-zeros
~     0: obj =   1.028333333e+01  infeas =  0.000e+00
OPTIMAL SOLUTION FOUND
Integer optimization begins...
glp_add_cols: ncs = 0; invalid number of columns
Error detected in file api/prob1.c at line 362
Aborted (core dumped)

problem.lp
Description: Text document