Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:58:09 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 4.485747e+04, 822 iterations, 0.02 seconds

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

     0     0 44857.4736    0    6          - 44857.4736     -      -    0s
H    0     0                    45907.000000 44857.4736  2.29%     -    0s
H    0     0                    45501.000000 44857.4736  1.41%     -    0s
     0     0 45031.4028    0    4 45501.0000 45031.4028  1.03%     -    0s
H    0     0                    45437.000000 45031.4028  0.89%     -    0s
     0     0 45067.0632    0    2 45437.0000 45067.0632  0.81%     -    0s
H    0     0                    45367.600885 45067.0632  0.66%     -    0s
H    0     0                    45234.000000 45067.0632  0.37%     -    0s
H    0     0                    45233.000000 45067.0632  0.37%     -    0s
     0     0 45103.4283    0    3 45233.0000 45103.4283  0.29%     -    0s
     0     0 45106.0703    0    2 45233.0000 45106.0703  0.28%     -    0s
     0     0 45106.1059    0    2 45233.0000 45106.1059  0.28%     -    0s
     0     0 45106.1084    0    1 45233.0000 45106.1084  0.28%     -    0s
     0     2 45139.6269    0    1 45233.0000 45139.6269  0.21%     -    0s

Cutting planes:
  Implied bound: 61
  Flow cover: 2

Explored 4 nodes (1094 simplex iterations) in 0.31 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.523300000000e+04, best bound 4.523075324675e+04, gap 0.0050%