Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:06:43 2013

Optimize a model with 22654 rows, 22184 columns and 88454 nonzeros
Presolve removed 47 rows and 0 columns
Presolve time: 0.10s
Presolved: 22607 rows, 22184 columns, 88407 nonzeros
Variable types: 22137 continuous, 47 integer (47 binary)

Root relaxation: objective 4.005527e+04, 2710 iterations, 0.69 seconds

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

     0     0 40055.2708    0   38          - 40055.2708     -      -    0s
H    0     0                    51166.000000 40055.2708  21.7%     -    1s
     0     0 45579.2089    0   10 51166.0000 45579.2089  10.9%     -    2s
H    0     0                    49686.000000 45579.2089  8.27%     -    2s
     0     0 46100.5181    0    2 49686.0000 46100.5181  7.22%     -    2s
H    0     0                    47714.232077 46100.5181  3.38%     -    3s
H    0     0                    47008.000000 46100.5181  1.93%     -    3s
H    0     0                    46193.000000 46100.5181  0.20%     -    3s
     0     2 46178.3925    0    1 46193.0000 46178.3925  0.03%     -    3s

Cutting planes:
  Implied bound: 41

Explored 3 nodes (4869 simplex iterations) in 3.42 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.619300000000e+04, best bound 4.619300000000e+04, gap 0.0%