[Cbc] [cbc][2.9.9]Semis section in lp file or MPS file leading to a crash

[John Forrest]

Richi,

Semi continuous variables are in Cbc (as a simple version of lotsizing 
variables)

However they is no way of inputting them using mps or lp files.

Having invented semi-continuous variables (probably before you were 
born!), I feel some responsibility to make them easier to use in Cbc.  I 
will get them working with mps files in trunk.

John Forrest
On 15/01/18 12:17, richi arora wrote:
> Hi
> I am using version 2.9.9 of cbc in ubuntu 17.10 docker image. My 
> test.lp file has following content:
> |Maximize obj: x1 + 2 x2 + 3 x3 + x4 Subject To c1: - x1 + x2 + x3 + 10 
> x4 <= 20 c2: x1 - 3 x2 + x3 <= 30 c3: x2 - 3.5 x4 = 0 Bounds 0 <= x1 
> <= 40 2 <= x4 <= 3 General x4 Semis x1 x2 x3|

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