Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:03:36 2013

Optimize a model with 495 rows, 20295 columns and 40545 nonzeros
Presolve time: 0.03s
Presolved: 495 rows, 20295 columns, 40545 nonzeros
Variable types: 20250 continuous, 45 integer (45 binary)

Root relaxation: objective 4.710585e+04, 1132 iterations, 0.02 seconds

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

     0     0 47105.8513    0    3          - 47105.8513     -      -    0s
H    0     0                    47266.000000 47105.8513  0.34%     -    0s
     0     0 47228.7586    0    1 47266.0000 47228.7586  0.08%     -    0s
     0     0 47228.7586    0    3 47266.0000 47228.7586  0.08%     -    0s
     0     0 47228.7586    0    1 47266.0000 47228.7586  0.08%     -    0s
     0     0 47228.7586    0    1 47266.0000 47228.7586  0.08%     -    0s
     0     0 47228.7586    0    1 47266.0000 47228.7586  0.08%     -    0s
     0     0 47228.7586    0    1 47266.0000 47228.7586  0.08%     -    0s
     0     0 47228.7586    0    1 47266.0000 47228.7586  0.08%     -    0s

Cutting planes:
  Implied bound: 22
  Flow cover: 2

Explored 0 nodes (2175 simplex iterations) in 0.34 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.726600000000e+04, best bound 4.726600000000e+04, gap 0.0%