Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:58:13 2013

Optimize a model with 429 rows, 15249 columns and 30459 nonzeros
Presolve time: 0.02s
Presolved: 429 rows, 15249 columns, 30459 nonzeros
Variable types: 15210 continuous, 39 integer (39 binary)

Root relaxation: objective 3.940549e+04, 637 iterations, 0.01 seconds

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

     0     0 39405.4894    0    4          - 39405.4894     -      -    0s
H    0     0                    40148.000000 39405.4894  1.85%     -    0s
H    0     0                    39546.000000 39405.4894  0.36%     -    0s
     0     0 39516.0189    0    3 39546.0000 39516.0189  0.08%     -    0s
     0     0 39517.7057    0    3 39546.0000 39517.7057  0.07%     -    0s
     0     0 39517.7057    0    4 39546.0000 39517.7057  0.07%     -    0s
     0     0 39517.7057    0    3 39546.0000 39517.7057  0.07%     -    0s
     0     0 39517.7057    0    3 39546.0000 39517.7057  0.07%     -    0s
     0     0 39522.3511    0    3 39546.0000 39522.3511  0.06%     -    0s
     0     0 39524.0605    0    3 39546.0000 39524.0605  0.06%     -    0s
     0     0 39524.8727    0    3 39546.0000 39524.8727  0.05%     -    0s
     0     0 39524.8727    0    3 39546.0000 39524.8727  0.05%     -    0s
     0     0 39524.8727    0    3 39546.0000 39524.8727  0.05%     -    0s
     0     0 39524.8727    0    3 39546.0000 39524.8727  0.05%     -    0s
     0     0 39545.7143    0    1 39546.0000 39545.7143  0.00%     -    0s

Cutting planes:
  Implied bound: 39
  Flow cover: 1

Explored 0 nodes (1228 simplex iterations) in 0.30 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.954600000000e+04, best bound 3.954571428571e+04, gap 0.0007%