Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:58:32 2013

Optimize a model with 15678 rows, 15288 columns and 60918 nonzeros
Presolve removed 39 rows and 0 columns
Presolve time: 0.07s
Presolved: 15639 rows, 15288 columns, 60879 nonzeros
Variable types: 15249 continuous, 39 integer (39 binary)

Root relaxation: objective 3.570847e+04, 2345 iterations, 0.32 seconds

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

     0     0 35708.4674    0   31          - 35708.4674     -      -    0s
H    0     0                    42452.000000 35708.4674  15.9%     -    0s
     0     0 39308.8660    0    3 42452.0000 39308.8660  7.40%     -    0s
H    0     0                    40124.596220 39308.8660  2.03%     -    0s
H    0     0                    39734.000000 39308.8660  1.07%     -    0s
     0     0 39600.2667    0    1 39734.0000 39600.2667  0.34%     -    1s
     0     2 39606.0000    0    1 39734.0000 39606.0000  0.32%     -    1s
*    3     1               2    39707.000000 39707.0000   0.0%  67.7    1s

Cutting planes:
  Gomory: 1
  Implied bound: 31
  MIR: 1

Explored 4 nodes (3445 simplex iterations) in 1.32 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.970700000000e+04, best bound 3.970700000000e+04, gap 0.0%