Gurobi 5.0.1 (linux64) logging started Wed Apr 24 10:32:15 2013 Optimize a model with 1210 rows, 121110 columns and 242110 nonzeros Presolve time: 0.23s Presolved: 1210 rows, 121110 columns, 242110 nonzeros Variable types: 121000 continuous, 110 integer (110 binary) Root relaxation: objective 1.400571e+05, 3972 iterations, 0.18 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 140057.099 0 12 - 140057.099 - - 0s H 0 0 165991.00000 140057.099 15.6% - 0s 0 0 140581.328 0 11 165991.000 140581.328 15.3% - 1s 0 0 140692.797 0 13 165991.000 140692.797 15.2% - 1s H 0 0 163775.00000 140692.797 14.1% - 1s 0 0 140727.576 0 7 163775.000 140727.576 14.1% - 1s H 0 0 160542.85385 140727.576 12.3% - 1s H 0 0 158338.00000 140727.576 11.1% - 1s 0 0 140739.236 0 7 158338.000 140739.236 11.1% - 2s 0 0 140749.532 0 6 158338.000 140749.532 11.1% - 2s H 0 0 155122.09581 140749.532 9.27% - 2s H 0 0 153111.00000 140749.532 8.07% - 2s 0 0 140750.398 0 6 153111.000 140750.398 8.07% - 2s H 0 0 153051.00000 140750.398 8.04% - 2s 0 0 140750.526 0 6 153051.000 140750.526 8.04% - 2s H 0 0 148583.00000 140750.526 5.27% - 3s 0 2 140751.169 0 6 148583.000 140751.169 5.27% - 4s H 8 8 145454.24604 140867.287 3.15% 63.2 4s 11 13 141003.060 10 5 145454.246 140867.287 3.15% 71.9 5s H 13 13 144505.32300 140867.287 2.52% 72.3 5s H 16 16 143265.91667 140867.287 1.67% 77.4 5s H 17 17 141778.00000 140867.287 0.64% 74.4 5s * 18 12 16 141176.00000 140867.287 0.22% 73.1 5s Cutting planes: Implied bound: 232 Flow cover: 17 Explored 63 nodes (9288 simplex iterations) in 7.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.411760000000e+05, best bound 1.411631132076e+05, gap 0.0091%