Gurobi 5.0.1 (linux64) logging started Mon Feb  4 18:56:16 2013

Optimize a model with 27775 rows, 3025 columns and 84700 nonzeros
Presolve removed 2720 rows and 1544 columns
Presolve time: 0.20s
Presolved: 25055 rows, 1481 columns, 76153 nonzeros
Variable types: 19 continuous, 1462 integer (1462 binary)
Found heuristic solution: objective 74807.000000

Root relaxation: objective 6.026864e+04, 5255 iterations, 0.37 seconds

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

     0     0 60268.6450    0    6 74807.0000 60268.6450  19.4%     -    0s
H    0     0                    60280.000000 60268.6450  0.02%     -    0s
     0     0 60269.2939    0   17 60280.0000 60269.2939  0.02%     -    0s
     0     0 60269.2939    0    5 60280.0000 60269.2939  0.02%     -    0s
H    0     0                    60276.000000 60269.2939  0.01%     -    0s
H    0     0                    60274.000000 60269.2939  0.01%     -    0s

Explored 0 nodes (5939 simplex iterations) in 0.96 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.027400000000e+04, best bound 6.027000000000e+04, gap 0.0066%