Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:10:59 2013 Optimize a model with 847 rows, 59367 columns and 118657 nonzeros Presolve time: 0.09s Presolved: 847 rows, 59367 columns, 118657 nonzeros Variable types: 59290 continuous, 77 integer (77 binary) Root relaxation: objective 8.526214e+04, 1979 iterations, 0.06 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 85262.1399 0 14 - 85262.1399 - - 0s H 0 0 99275.000000 85262.1399 14.1% - 0s H 0 0 86277.000000 85262.1399 1.18% - 0s 0 0 85842.8512 0 13 86277.0000 85842.8512 0.50% - 0s 0 0 85883.4599 0 13 86277.0000 85883.4599 0.46% - 0s 0 0 85883.4599 0 14 86277.0000 85883.4599 0.46% - 0s 0 0 85883.4599 0 13 86277.0000 85883.4599 0.46% - 0s 0 0 85888.5451 0 13 86277.0000 85888.5451 0.45% - 1s 0 0 85925.9514 0 9 86277.0000 85925.9514 0.41% - 1s 0 0 85930.9161 0 8 86277.0000 85930.9161 0.40% - 1s 0 0 85934.1109 0 8 86277.0000 85934.1109 0.40% - 1s 0 0 85936.9252 0 10 86277.0000 85936.9252 0.39% - 1s 0 0 85939.7700 0 6 86277.0000 85939.7700 0.39% - 1s 0 0 85939.9135 0 6 86277.0000 85939.9135 0.39% - 1s H 0 0 86264.000000 85939.9135 0.38% - 1s 0 2 85945.1601 0 6 86264.0000 85945.1601 0.37% - 1s H 10 5 86223.714286 86100.8184 0.14% 43.6 2s * 11 5 10 86178.000000 86100.8184 0.09% 44.5 2s Cutting planes: Implied bound: 167 Flow cover: 14 Explored 25 nodes (5401 simplex iterations) in 2.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.617800000000e+04, best bound 8.617800000000e+04, gap 0.0%