This
page contains information related to the paper:
Wen Sun,
Jin-Kao Hao, Xiangjing Lai and Qinghua Wu. Adaptive feasible and
infeasible tabu search for weighted vertex coloring. Information Sciences 466: 203-219, 2018.
The binary code of the algorithm and a readme file are available here
The fourth set of 50 DIMACS/COLOR instances are available here