[SCIP] Why does an integer solution trigger the branching?

[杨瑞光]

Hi,


everyone,


I am using SCIP to implement branch pricing and solve a VRP problem. I customized a branch rule and included it in SCIP using SCIPincludeBranchrule. But I found that the integer solution at the root node triggered the branch (the integer variables I obtained using SCIPgetSolVal at the root node were all integers), and I don't know why this happened. Why has the integer solution been obtained but not exited the solution and triggered the branching? How should I handle this issue?


Thanks a lot!


Best wishes
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