Just to say, on request I might be able to provide the problem where I get this message.<div><br></div><div>Best regards,</div><div>Cristiano<br><br><div class="gmail_quote">On Wed, Feb 20, 2013 at 11:07 AM, Cristiano Arbex Valle <span dir="ltr"><<a href="mailto:arbex.dcc@gmail.com" target="_blank">arbex.dcc@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Dear Minotaur team,<div><br></div><div>I am currently using the BNB solver as part of my research. It has been working very well, thank you for your work.</div>
<div><br></div><div>There is one situation, however, where I get an apparent infinite loop. Notice that for hundreds of similar instances, the code works fine, but for this one I get this problem. This is the output of Minotaur when solving this specific case:</div>
<div><br></div><div>------</div><div>(...)</div><div><div>bnb main: setting reliability maxdepth to 10</div><div>bnb main: reliability branching iteration limit = 5</div><div>bnb main: brancher used = ReliabilityBrancher</div>
<div>branch-and-bound: time = 6.46 lb = -1.9483 ub = inf nodes processed = 3 nodes left = 4</div><div>branch-and-bound: time = 12.82 lb = -1.9483 ub = inf nodes processed = 6 nodes left = 7</div><div>branch-and-bound: time = 18.10 lb = -1.9483 ub = inf nodes processed = 22 nodes left = 21</div>
<div>branch-and-bound: time = 23.32 lb = -1.9483 ub = inf nodes processed = 27 nodes left = 26</div><div>branch-and-bound: time = 30.24 lb = -1.9483 ub = -0.0173 nodes processed = 36 nodes left = 33</div><div>branch-and-bound: time = 37.05 lb = -1.9483 ub = -0.0173 nodes processed = 39 nodes left = 34</div>
<div>branch-and-bound: time = 43.04 lb = -1.9483 ub = -0.0173 nodes processed = 44 nodes left = 39</div><div>branch-and-bound: time = 48.24 lb = -1.9483 ub = -0.0173 nodes processed = 52 nodes left = 47</div><div>branch-and-bound: time = 55.37 lb = -1.9483 ub = -0.0173 nodes processed = 57 nodes left = 50</div>
<div>branch-and-bound: time = 61.65 lb = -1.9483 ub = -0.0173 nodes processed = 64 nodes left = 55</div><div>branch-and-bound: time = 66.94 lb = -1.9483 ub = -0.0173 nodes processed = 72 nodes left = 59</div><div>branch-and-bound: time = 71.96 lb = -1.9483 ub = -0.0173 nodes processed = 84 nodes left = 69</div>
<div>branch-and-bound: time = 77.97 lb = -1.9483 ub = -0.0173 nodes processed = 89 nodes left = 72</div><div>branch-and-bound: time = 83.27 lb = -1.9483 ub = -0.0173 nodes processed = 92 nodes left = 75</div><div>branch-and-bound: time = 88.63 lb = -1.9483 ub = -0.0173 nodes processed = 102 nodes left = 81</div>
<div>branch-and-bound: time = 94.70 lb = -1.9483 ub = -0.0173 nodes processed = 112 nodes left = 89</div><div>branch-and-bound: time = 99.83 lb = -1.9483 ub = -0.0173 nodes processed = 120 nodes left = 97</div><div>branch-and-bound: time = 104.87 lb = -1.9483 ub = -0.0173 nodes processed = 129 nodes left = 106</div>
<div>branch-and-bound: time = 109.89 lb = -1.9483 ub = -0.0173 nodes processed = 136 nodes left = 109</div><div>branch-and-bound: time = 115.09 lb = -1.9483 ub = -0.0173 nodes processed = 146 nodes left = 119</div><div>
branch-and-bound: time = 120.27 lb = -1.9483 ub = -0.0173 nodes processed = 155 nodes left = 128</div><div>branch-and-bound: time = 125.33 lb = -1.9483 ub = -0.0173 nodes processed = 163 nodes left = 136</div><div>branch-and-bound: time = 131.27 lb = -1.9483 ub = -0.0173 nodes processed = 170 nodes left = 141</div>
<div>branch-and-bound: time = 136.86 lb = -1.9483 ub = -0.0173 nodes processed = 175 nodes left = 146</div><div>branch-and-bound: time = 141.90 lb = -1.9483 ub = -0.0173 nodes processed = 185 nodes left = 156</div><div>
branch-and-bound: time = 147.44 lb = -1.9483 ub = -0.0173 nodes processed = 194 nodes left = 165</div><div>branch-and-bound: time = 152.84 lb = -1.9483 ub = -0.0173 nodes processed = 204 nodes left = 175</div><div>filterSQP: version 20010817</div>
<div> failure in re_order (3)</div><div> e(i).eq.0.D0: i = 288</div><div> e(i).eq.0.D0: i = 288</div><div> e(i).eq.0.D0: i = 288</div><div> e(i).eq.0.D0: i = 288</div><div> e(i).eq.0.D0: i = 288</div>
<div> e(i).eq.0.D0: i = 288</div></div><div>(...)</div><div>------------------------------------------------</div><div><br></div><div>That last sentence is being printed indefinitely. I tried setting all verbose options to zero (in this test bnb_log_level=2, but I also tried with zero), but that message is still being printed. After a few minutes the output file size grew to over 200MB. Do you happen to know the reason I am getting this issue?</div>
<div><br></div><div>Thank you very much,<span class="HOEnZb"><font color="#888888"><br clear="all"><div><br></div>-- <br>Cristiano Arbex Valle<br><br></font></span></div>
</blockquote></div><br><br clear="all"><div><br></div>-- <br><div>--</div>Cristiano Arbex Valle<br><div><br></div>
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