Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:52:31 2013

Optimize a model with 715 rows, 42315 columns and 84565 nonzeros
Presolve time: 0.06s
Presolved: 715 rows, 42315 columns, 84565 nonzeros
Variable types: 42250 continuous, 65 integer (65 binary)

Root relaxation: objective 7.529652e+04, 1818 iterations, 0.05 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0 75296.5159    0    5          - 75296.5159     -      -    0s
H    0     0                    77382.000000 75296.5159  2.70%     -    0s
H    0     0                    75841.000000 75296.5159  0.72%     -    0s
     0     0 75507.1862    0    4 75841.0000 75507.1862  0.44%     -    0s
     0     0 75507.1862    0    5 75841.0000 75507.1862  0.44%     -    0s
     0     0 75507.1862    0    4 75841.0000 75507.1862  0.44%     -    0s
     0     0 75566.2432    0    6 75841.0000 75566.2432  0.36%     -    0s
     0     0 75582.6975    0    5 75841.0000 75582.6975  0.34%     -    0s
     0     0 75585.8837    0    5 75841.0000 75585.8837  0.34%     -    0s
     0     0 75586.8265    0    5 75841.0000 75586.8265  0.34%     -    0s
     0     0 75586.8265    0    5 75841.0000 75586.8265  0.34%     -    0s
     0     2 75612.2770    0    5 75841.0000 75612.2770  0.30%     -    1s
*   11     5               7    75830.000000 75682.8956  0.19%  58.9    1s
*   14     3               6    75828.000000 75682.8956  0.19%  57.2    1s
H   24     2                    75786.916667 75710.3393  0.10%  50.4    1s
H   25     2                    75773.833333 75710.3393  0.08%  51.8    1s
*   26     2               5    75754.000000 75710.3393  0.06%  50.2    1s

Cutting planes:
  Implied bound: 101
  Flow cover: 6

Explored 29 nodes (5173 simplex iterations) in 1.37 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.575400000000e+04, best bound 7.575400000000e+04, gap 0.0%