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    <p>Hi Forrest,</p>
    <p>Crashed in my fresh cbc build (rev 2322).</p>
    <p>Built with Blas, Lapack and Glpk, <br>
    </p>
    <p>build flags:</p>
    <p>export CFLAGS="-O2 -g" ; export CXXFLAGS="-O2 -g" ; ./configure
      --prefix=/usr --enable-cbc-parallel --enable-gnu-packages
      ADD_CXXFLAGS="-O2 -g" LDFLAGS="-lz -lpthread -lrt" ; make clean</p>
    <p> <font color="#990000">Assertion `fabs(floor(value + 0.5) -
        value) < integerTolerance</font><br>
    </p>
    <b>Debugging:</b><b><br>
    </b><b>value:   9.9999999999999995e-07</b><b><br>
    </b><br>
    <br>
    <br>
    <div class="moz-cite-prefix">Em 12/01/2017 07:31, John Forrest
      escreveu:<br>
    </div>
    <blockquote
      cite="mid:c3122a49-c9c0-8259-bf79-423a6e96c3d1@fastercoin.com"
      type="cite">
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      <div class="moz-cite-prefix">Rudi,<br>
        <br>
        Unable to reproduce error.<br>
        <br>
        What compiler and configure options were used (and what
        parameters for cbc).<br>
        <br>
        John Forrest<br>
        <br>
        <br>
        On 11/01/17 18:40, Rudi Araújo wrote:<br>
      </div>
      <blockquote cite="mid:028801d26c3a$3e4296a0$bac7c3e0$@siscog.pt"
        type="cite">
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          <p class="MsoNormal">Hi,<o:p></o:p></p>
          <p class="MsoNormal"><o:p> </o:p></p>
          <p class="MsoNormal"><span lang="EN-GB">The attached LP causes
              CBC to run into a failed assertion.<o:p></o:p></span></p>
          <p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
          <p class="MsoNormal"
            style="margin-left:35.4pt;text-autospace:none"><span
              style="font-size:10.0pt;font-family:Consolas" lang="EN-GB">Cbc0038I
              Pass  52: suminf.    1.75343 (4) obj. 470151 iterations 39<o:p></o:p></span></p>
          <p class="MsoNormal"
            style="margin-left:35.4pt;text-autospace:none"><span
              style="font-size:10.0pt;font-family:Consolas" lang="EN-GB">Cbc0038I
              Pass  53: suminf.    1.00847 (6) obj. 470151 iterations 49<o:p></o:p></span></p>
          <p class="MsoNormal"
            style="margin-left:35.4pt;text-autospace:none"><span
              style="font-size:10.0pt;font-family:Consolas" lang="EN-GB">Cbc0038I
              No solution found this major pass<o:p></o:p></span></p>
          <p class="MsoNormal"
            style="margin-left:35.4pt;text-autospace:none"><span
              style="font-size:10.0pt;font-family:Consolas" lang="EN-GB">Cbc0038I
              Before mini branch and bound, 125 integers at bound fixed
              and 0 continuous<o:p></o:p></span></p>
          <p class="MsoNormal"
            style="margin-left:35.4pt;text-autospace:none"><span
              style="font-size:10.0pt;font-family:Consolas" lang="EN-GB">Cbc0038I
              Full problem 157 rows 227 columns, reduced to 79 rows 82
              columns<o:p></o:p></span></p>
          <p class="MsoNormal"
            style="margin-left:35.4pt;text-autospace:none"><span
              style="font-size:10.0pt;font-family:Consolas" lang="EN-GB">Assertion
              failed!<o:p></o:p></span></p>
          <p class="MsoNormal"
            style="margin-left:35.4pt;text-autospace:none"><span
              style="font-size:10.0pt;font-family:Consolas" lang="EN-GB"><o:p> </o:p></span></p>
          <p class="MsoNormal"
            style="margin-left:35.4pt;text-autospace:none"><span
              style="font-size:10.0pt;font-family:Consolas" lang="EN-GB">Program:
              ...<o:p></o:p></span></p>
          <p class="MsoNormal"
            style="margin-left:35.4pt;text-autospace:none"><span
              style="font-size:10.0pt;font-family:Consolas" lang="EN-GB">File:
              ../../../Cbc/src/CbcHeuristic.cpp, Line 2528<o:p></o:p></span></p>
          <p class="MsoNormal"
            style="margin-left:35.4pt;text-autospace:none"><span
              style="font-size:10.0pt;font-family:Consolas" lang="EN-GB"><o:p> </o:p></span></p>
          <p class="MsoNormal"
            style="margin-left:35.4pt;text-autospace:none"><span
              style="font-size:10.0pt;font-family:Consolas" lang="EN-GB">Expression:
              fabs(floor(value + 0.5) - value) < integerTolerance<o:p></o:p></span></p>
          <p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
          <p class="MsoNormal"><span lang="EN-GB">We tried running with
              2.9, 2.9.8 and a recent trunk build (from some days ago)
              and the failure is consistent.<o:p></o:p></span></p>
          <p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
          <p class="MsoNormal"><span lang="EN-GB">Can you take a look at
              it?<o:p></o:p></span></p>
          <p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
          <p class="MsoNormal"><span lang="EN-GB">Thank you in advance,<o:p></o:p></span></p>
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              Rudi Araújo <br>
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        <pre wrap="">_______________________________________________
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    <pre class="moz-signature" cols="72">-- 
==================================================
Haroldo Gambini Santos
D.Sc, Computer Science
Universidade Federal de Ouro Preto
<a class="moz-txt-link-freetext" href="http://www.decom.ufop.br/haroldo/">http://www.decom.ufop.br/haroldo/</a></pre>
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