[Bug-glpk] Assertion failed: x >= lb; file glpmip2.c; line 230

[Oscar Gustafsson]

Attached is a model which ends after quite some time with the following 
end lines:

+ 29790: mip =   1.300910695e-04 >=   9.430119284e-05  27.5% (253; 16770)
+ 29845: mip =   1.300910695e-04 >=   9.430119284e-05  27.5% (253; 16809)
+ 29896: mip =   1.300910695e-04 >=   9.430119284e-05  27.5% (243; 16864)
Assertion failed: x >= lb; file glpmip2.c; line 230

The execution is started with:

/usr/local/bin/glpsol --math piecewiselinearinteger.mod --intopt -o sintest.txt

As it uses the new integer optimization features I submit this report in 
the hope that it might help debugging it further.

The model has worked properly for other input values (the three first 
parameters *bits) earlier.

It is verified by running the same model twice and exectly the same thing 
happens.

With best regards

Oscar Gustafsson

piecewiselinearinteger.mod
Description: Text document