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<div class="moz-cite-prefix">Marco,<br>
<br>
SOS without a convexity row got broken sometime. I think I have
fixed it in trunk.<br>
<br>
I will look at semi-continuous.<br>
<br>
The main culprit was some "improvements" which did not know about
odd sets etc.<br>
<br>
Will post something in a day or so.<br>
<br>
John Forrest<br>
<br>
On 27/06/14 15:50, mg wrote:<br>
</div>
<blockquote
cite="mid:CAOayR=bVm9BGxNTkSE0WkFxczJ0HO-YFhMKeETjQ8mmu_tcu9Q@mail.gmail.com"
type="cite">
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<div dir="ltr">Hi all,
<div>I'm trying to use SOS and LotSize/SemiContinuous objects
without success.</div>
<div><br>
</div>
<div>I have created a very simple program (attached) containing
a small problem with SOS and a small problem using LotSize
objects... </div>
<div><br>
</div>
<div>The SOS test problem is the following:</div>
<div><br>
</div>
<div>
<div>max 3 * x0 + 2 * x1 + 4 * x2</div>
<div>subject to</div>
<div> x0, x1, x2 binary</div>
<div> sos1(x0, x1, x2)</div>
</div>
<div><br>
</div>
<div>and solving it, I get x0 = 1, x1= 1, x2 = 1 where I
expected just one single 1...</div>
<div><br>
</div>
<div>The LotSize/SemiContinuous test problem is the following:</div>
<div><br>
</div>
<div>
<div>min 2 * x0 + 3 * x1 + x2</div>
<div>subject to</div>
<div> 3 * x0 + 5 * x1 + 7 * x2 <= 42</div>
<div> 4 * x0 + 3 * x1 + 2 * x2 <= 31</div>
<div> 2 * x0 + 1 * x1 + 5 * x2 <= 23</div>
<div> x0, x1, x2 integers [0,4]</div>
<div> x1 semi-continuous can be 0 or [3,4]</div>
</div>
<div><br>
</div>
<div><span>and solving it, I get x0 = 4, x1 = 2 where I expected
x1 being 0,3 or 4</span><br>
</div>
<div><span><br>
</span></div>
<div>Am I doing something wrong ?</div>
<div><br>
</div>
<div>Thanks in advance,</div>
<div>Marco</div>
</div>
<br>
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<br>
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