Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:43:40 2013 Optimize a model with 3303 rows, 729 columns and 10206 nonzeros Presolve removed 715 rows and 381 columns Presolve time: 0.02s Presolved: 2588 rows, 348 columns, 8052 nonzeros Variable types: 12 continuous, 336 integer (336 binary) Found heuristic solution: objective 13534.000000 Root relaxation: objective 1.082309e+04, 1756 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 10823.0864 0 8 13534.0000 10823.0864 20.0% - 0s H 0 0 10850.000000 10823.0864 0.25% - 0s H 0 0 10841.000000 10823.0864 0.17% - 0s H 0 0 10831.000000 10823.0864 0.07% - 0s 0 0 10823.8663 0 15 10831.0000 10823.8663 0.07% - 0s 0 0 10823.8663 0 6 10831.0000 10823.8663 0.07% - 0s 0 0 10824.5480 0 18 10831.0000 10824.5480 0.06% - 0s 0 0 10825.0492 0 24 10831.0000 10825.0492 0.05% - 0s H 0 0 10830.000000 10825.0492 0.05% - 0s 0 0 10825.6257 0 23 10830.0000 10825.6257 0.04% - 0s 0 0 10825.7880 0 29 10830.0000 10825.7880 0.04% - 0s 0 0 10825.9977 0 27 10830.0000 10825.9977 0.04% - 0s 0 0 10826.1485 0 28 10830.0000 10826.1485 0.04% - 0s 0 0 10826.2779 0 26 10830.0000 10826.2779 0.03% - 0s 0 0 10826.3618 0 25 10830.0000 10826.3618 0.03% - 0s 0 0 10826.5206 0 31 10830.0000 10826.5206 0.03% - 0s 0 0 10826.5298 0 30 10830.0000 10826.5298 0.03% - 0s H 0 0 10829.000000 10826.5298 0.02% - 0s 0 0 10826.6113 0 29 10829.0000 10826.6113 0.02% - 0s 0 2 10826.6947 0 29 10829.0000 10826.6947 0.02% - 0s H 1 2 10827.000000 10826.6947 0.00% 2.0 0s Explored 2 nodes (2006 simplex iterations) in 0.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.082700000000e+04, best bound 1.082700000000e+04, gap 0.0%