Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:57:19 2013

Optimize a model with 32567 rows, 3364 columns and 99238 nonzeros
Presolve removed 3029 rows and 1711 columns
Presolve time: 0.24s
Presolved: 29538 rows, 1653 columns, 89988 nonzeros
Variable types: 25 continuous, 1628 integer (1628 binary)
Found heuristic solution: objective 86210.000000

Root relaxation: objective 6.667917e+04, 8208 iterations, 0.52 seconds

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

     0     0 66679.1650    0    8 86210.0000 66679.1650  22.7%     -    0s
H    0     0                    66689.000000 66679.1650  0.01%     -    0s
     0     0 66681.1282    0   19 66689.0000 66681.1282  0.01%     -    0s
     0     0 66681.1282    0    8 66689.0000 66681.1282  0.01%     -    1s
     0     0 66681.3887    0   24 66689.0000 66681.3887  0.01%     -    1s
     0     1 66681.9649    0   24 66689.0000 66681.9649  0.01%     -    1s
H    1     1                    66688.000000 66681.9649  0.01%   2.0    1s

Explored 2 nodes (8411 simplex iterations) in 1.19 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.668800000000e+04, best bound 6.668200000000e+04, gap 0.0090%