<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div>On 26-Jan-10, at 12:00 PM, <a href="mailto:ipopt-request@list.coin-or.org">ipopt-request@list.coin-or.org</a> wrote:</div><blockquote type="cite"><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;"><span style="font-family:'Helvetica'; font-size:medium; color:rgba(0, 0, 0, 0.5);"><b>From: </b></span><span style="font-family:'Helvetica'; font-size:medium;">Sam Hall <<a href="mailto:samh_1205@yahoo.co.uk">samh_1205@yahoo.co.uk</a>><br></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;"><span style="font-family:'Helvetica'; font-size:medium; color:rgba(0, 0, 0, 0.5);"><b>Date: </b></span><span style="font-family:'Helvetica'; font-size:medium;">January 25, 2010 4:18:33 PM GMT-05:00<br></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;"><span style="font-family:'Helvetica'; font-size:medium; color:rgba(0, 0, 0, 0.5);"><b>To: </b></span><span style="font-family:'Helvetica'; font-size:medium;"><a href="mailto:ipopt@list.coin-or.org">ipopt@list.coin-or.org</a><br></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;"><span style="font-family:'Helvetica'; font-size:medium; color:rgba(0, 0, 0, 0.5);"><b>Subject: </b></span><span style="font-family:'Helvetica'; font-size:medium;"><b>[Ipopt] Restoration phase is called at point that is almost feasible, with constraint violation 4.202374e-007</b><br></span></div><br>3. How can i improve this situation?</blockquote></div><div><br></div><div>I've found that whenever this error crops up, *re-solving* the problem from the failure point usually yields an Optimal solution. It's just a rule of thumb, and doesn't always work, but it works frequently enough that I have my code invoke a re-solve automatically whenever it detects this termination message.</div><div><br></div><div>David</div></body></html>