[Cbc] How to stop execution of CBC. Is it possible to see current result?

Mon Mar 21 04:31:53 EDT 2016

I am running my programming task with command "cbc model_cplex.lp solve solu solution.txt" and now CBC is already working for almost hour and giving messages like:Cbc0010I After 75400 nodes, 16912 on tree, 4027.85 best solution, bestpossible4026.84 (874.05 seconds)Cbc0010I After 75500 nodes, 16914 on tree, 4027.85 best solution, bestpossible4026.84 (876.98 seconds)Cbc0010I After 75600 nodes, 16914 on tree, 4027.85 best solution, bestpossible4026.84 (880.22 seconds)Cbc0010I After 75700 nodes, 16913 on tree, 4027.85 best solution, bestpossible4026.84 (882.89 seconds)Cbc0010I After 75800 nodes, 16913 on tree, 4027.85 best solution, bestpossible4026.84 (885.77 seconds)Cbc0010I After 75900 nodes, 16913 on tree, 4027.85 best solution, bestpossible4026.84 (888.34 seconds)Cbc0010I After 76000 nodes, 16913 on tree, 4027.85 best solution, bestpossible4026.84 (891.18 seconds)Cbc0010I After 76100 nodes, 16906 on tree, 4027.85 best solution, bestpossible4026.84 (894.64 seconds)Cbc0010I After 76200 nodes, 16894 on tree, 4027.85 best solution, bestpossible4026.84 (897.10 seconds)Cbc0010I After 76300 nodes, 16885 on tree, 4027.85 best solution, bestpossible4026.84 (899.48 seconds)Cbc0010I After 76400 nodes, 16900 on tree, 4027.85 best solution, bestpossible4026.84 (902.47 seconds)Cbc0010I After 76500 nodes, 16902 on tree, 4027.85 best solution, bestpossible4026.84 (904.88 seconds)
What does this mean? As I understand, them my problem is feasible but what CBC is trying to find so long? Is it trying to find first feasible integer solution or CBC has already found some solution but now is trying to find better solution. I would be satisfied with suboptimal solution if it takes less time to find. From smaller problems I know that first feasible solution usually is quite good, the next best solutions required lot of time to be found and the improvements are small.
Jonatan
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