Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:01:50 2013 Optimize a model with 836 rows, 57836 columns and 115596 nonzeros Presolve time: 0.08s Presolved: 836 rows, 57836 columns, 115596 nonzeros Variable types: 57760 continuous, 76 integer (76 binary) Root relaxation: objective 9.202379e+04, 2589 iterations, 0.08 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 92023.7881 0 8 - 92023.7881 - - 0s H 0 0 100412.00000 92023.7881 8.35% - 0s H 0 0 93241.000000 92023.7881 1.31% - 0s 0 0 92244.6563 0 3 93241.0000 92244.6563 1.07% - 0s 0 0 92244.6563 0 3 93241.0000 92244.6563 1.07% - 0s 0 0 92244.6563 0 3 93241.0000 92244.6563 1.07% - 0s 0 0 92246.6100 0 4 93241.0000 92246.6100 1.07% - 0s 0 0 92246.8490 0 4 93241.0000 92246.8490 1.07% - 0s 0 0 92247.6370 0 3 93241.0000 92247.6370 1.07% - 0s 0 0 92249.5547 0 3 93241.0000 92249.5547 1.06% - 1s 0 0 92249.9849 0 4 93241.0000 92249.9849 1.06% - 1s 0 0 92249.9849 0 4 93241.0000 92249.9849 1.06% - 1s 0 0 92250.5461 0 4 93241.0000 92250.5461 1.06% - 1s 0 0 92250.5461 0 4 93241.0000 92250.5461 1.06% - 1s 0 0 92250.5461 0 4 93241.0000 92250.5461 1.06% - 1s 0 0 92250.5461 0 8 93241.0000 92250.5461 1.06% - 1s 0 0 92250.5461 0 3 93241.0000 92250.5461 1.06% - 2s 0 0 92250.5461 0 3 93241.0000 92250.5461 1.06% - 2s 0 0 92250.5461 0 3 93241.0000 92250.5461 1.06% - 2s 0 0 92250.5461 0 3 93241.0000 92250.5461 1.06% - 2s 0 0 92250.5461 0 5 93241.0000 92250.5461 1.06% - 2s 0 0 92250.5461 0 4 93241.0000 92250.5461 1.06% - 2s 0 0 92250.5795 0 4 93241.0000 92250.5795 1.06% - 2s 0 0 92250.5795 0 4 93241.0000 92250.5795 1.06% - 2s 0 0 92250.5795 0 4 93241.0000 92250.5795 1.06% - 2s 0 0 92250.6812 0 4 93241.0000 92250.6812 1.06% - 2s 0 2 92252.0554 0 4 93241.0000 92252.0554 1.06% - 2s * 7 3 7 92315.000000 92315.0000 0.0% 35.3 3s Cutting planes: Implied bound: 63 Flow cover: 4 Explored 8 nodes (5495 simplex iterations) in 3.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.231500000000e+04, best bound 9.231500000000e+04, gap 0.0%