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[Bug-glpk] GLPK crashes on glp_add_cols
From: |
Dingyuan Wang |
Subject: |
[Bug-glpk] GLPK crashes on glp_add_cols |
Date: |
Wed, 24 Apr 2019 18:26:41 +0800 |
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
- [Bug-glpk] GLPK crashes on glp_add_cols,
Dingyuan Wang <=