<HTML><HEAD>
<META content="text/html; charset=utf-8" http-equiv=Content-Type>
<META name=GENERATOR content="MSHTML 9.00.8112.16447"></HEAD>
<BODY style="MARGIN: 4px 4px 1px; FONT: 10pt Segoe UI">
<DIV>Hello again,</DIV>
<DIV> </DIV>
<DIV>unfortunately I still have the same problem. I did also check the mailing list for Bcp and found</DIV>
<DIV>two similar problems.</DIV>
<DIV> </DIV>
<DIV>[BCP] Pricing and dynamic cut generation in BPC from May 2008</DIV>
<DIV>[Coin-bcpdiscuss] Both cut and variable generation</DIV>
<DIV> </DIV>
<DIV>But none of the answers does help me. I also tried to use variable generation and cut generation in serial now, so I only generate vars if no cuts have been found. But I still have the same problem, that after fathoming a node in the search tree, a problem occurs in </DIV>
<DIV>OsiClpSolverInterface::clone(bool) const(). </DIV>
<DIV> </DIV>
<DIV>Does anybody have a clue to solve this?</DIV>
<DIV> </DIV>
<DIV>Thanks,</DIV>
<DIV>Andrea</DIV>
<DIV> </DIV>
<DIV>Hi,<BR><BR>I am using BCP already quite a while but only used variable generation so far. Now I implemented cuts to strengthen the LP relaxation. However, I obtain the following problem when fathoming a node.<BR><BR>LP: Forcibly fathoming node in branch().<BR>LP: Deleting 648 columns from the matrix.<BR><BR>Program received signal SIGSEGV, Segmentation fault.<BR>0x00007ffff791ffd8 in OsiClpSolverInterface::OsiClpSolverInterface(OsiClpSolverInterface const&) () from /home/andi/Bcp-1.3.4/build/lib/libOsiClp.so.1<BR><BR>I first thought that my algorithmic cuts are including variables that have been deleted. However, if I customize the function "select_vars_to_delete" of BCP_lp_user to delete nothing the error still occurs.<BR><BR>Thanks a lot for your help.<BR><BR>With kind regards,<BR><BR>Andrea<BR><BR><BR></DIV></BODY></HTML>