<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div><span></span></div><div><meta http-equiv="content-type" content="text/html; charset=utf-8"><span style="background-color: rgba(255, 255, 255, 0);">Hi all, </span><div class=""><span style="background-color: rgba(255, 255, 255, 0);"><br class=""></span></div><div class=""><span style="background-color: rgba(255, 255, 255, 0);">I am currently working on a Branch Price and Cut algorithm that requires a simple variation of the classic Ryan-Foster branching rule. For my code, I used as a guide the file <font class="">cons_samediff.c</font> from the bin packing example. So far, I have been able to adapt the code without any mayor problems. However, I am having some issues with the assertion of line 492. This is an assertion that is called from the method that deactivates the branching constraints of a given node. (<span class="">SCIP_DECL_CONSDEACTIVE). </span>The actually code of these line is <span class="">assert( consdataCheck(scip, probdata, consdata) ); </span></span></div><div class=""><span style="background-color: rgba(255, 255, 255, 0);"><br class=""></span></div><div class=""><span style="background-color: rgba(255, 255, 255, 0);">It seems SCIP is updating the bounds of the variables unfixing the variables that where fixed in that node, right before <span class="">SCIP_DECL_CONSDEACTIVE </span>is executed (it perhaps should doubt after). In other words, the local bounds of the variables no longer include the printing decisions given by the constraint that is being deactivated. I am wondering if you guys know how to fix this issue. </span></div><div class=""><span style="background-color: rgba(255, 255, 255, 0);"><br class=""></span></div><div class=""><span style="background-color: rgba(255, 255, 255, 0);">Also, I am would like to know if there is a special reason for having two almost consecutive assertions that do the same in that function, lines 492 and 502?</span></div><div class=""><span style="background-color: rgba(255, 255, 255, 0);"><br class=""></span></div><div class=""><span style="background-color: rgba(255, 255, 255, 0);">Thanks for the help</span></div><div class=""><span style="background-color: rgba(255, 255, 255, 0);"><br class=""></span></div><div class=""><span style="background-color: rgba(255, 255, 255, 0);">PD: I am using the 3.2.0 version.</span></div><div class=""><span style="background-color: rgba(255, 255, 255, 0);"><br class=""></span></div><div class=""><span style="background-color: rgba(255, 255, 255, 0);">—Jose </span></div><div class=""><span style="background-color: rgba(255, 255, 255, 0);"><br class=""></span></div><div class=""><br></div></div></body></html>