Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:00:49 2013

Optimize a model with 18144 rows, 17724 columns and 70644 nonzeros
Presolve removed 42 rows and 0 columns
Presolve time: 0.08s
Presolved: 18102 rows, 17724 columns, 70602 nonzeros
Variable types: 17682 continuous, 42 integer (42 binary)

Root relaxation: objective 3.980133e+04, 2413 iterations, 0.52 seconds

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

     0     0 39801.3318    0   33          - 39801.3318     -      -    0s
H    0     0                    48589.000000 39801.3318  18.1%     -    0s
     0     0 45584.7252    0    6 48589.0000 45584.7252  6.18%     -    1s
H    0     0                    47661.450148 45584.7252  4.36%     -    1s
H    0     0                    47317.000000 45584.7252  3.66%     -    1s
H    0     0                    45728.000000 45584.7252  0.31%     -    1s
     0     0 45658.1462    0    2 45728.0000 45658.1462  0.15%     -    1s
     0     0 45689.6825    0    2 45728.0000 45689.6825  0.08%     -    1s
H    0     0                    45694.000000 45689.6825  0.01%     -    1s

Cutting planes:
  Implied bound: 33

Explored 0 nodes (3738 simplex iterations) in 1.78 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.569400000000e+04, best bound 4.568968253968e+04, gap 0.0094%