[Cbc] FW: Non deterministic solution

[Yves Touchard]

I use the stable 2.9.8 version, Rev #2310

From: Yves Touchard
Sent: Wednesday, March 29, 2017 12:11 PM
To: 'cbc at list.coin-or.org' <cbc at list.coin-or.org>
Subject: Non deterministic solution

Hello,

I have an lp file for which the founded solution is not deterministic.
The lp file and two different solutions files are located here:
https://www.dropbox.com/sh/1ipnrr62zyi0p71/AABlxAnsnZF8tbBmABLw1446a?dl=0

The command is:
bin/cbc pb.lp ratio 0.05 multiple 4 branch printingOptions normal solution pb.sol

FlowCover cuts must be disabled in order to get a deterministic solution.
bin/cbc pb.lp ratio 0.05 flow off multiple 4 branch printingOptions normal solution pb.sol

Thanks and regards

Yves
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