Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:25:04 2013

Optimize a model with 33117 rows, 32547 columns and 130017 nonzeros
Presolve removed 2151 rows and 0 columns
Presolve time: 0.19s
Presolved: 30966 rows, 32547 columns, 125715 nonzeros
Variable types: 32490 continuous, 57 integer (57 binary)

Root relaxation: objective 6.305762e+04, 6206 iterations, 0.76 seconds

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

     0     0 63057.6166    0    4          - 63057.6166     -      -    1s
H    0     0                    64310.000000 63057.6166  1.95%     -    1s
     0     0 63057.6420    0    5 64310.0000 63057.6420  1.95%     -    1s
H    0     0                    64246.108516 63057.6420  1.85%     -    1s
H    0     0                    63166.000000 63057.6420  0.17%     -    2s
H    0     0                    63109.000000 63057.6420  0.08%     -    2s
     0     0 63062.5789    0    2 63109.0000 63062.5789  0.07%     -    2s
     0     0 63062.9237    0    3 63109.0000 63062.9237  0.07%     -    2s
     0     0 63100.7059    0    1 63109.0000 63100.7059  0.01%     -    2s
     0     2 63102.8315    0    1 63109.0000 63102.8315  0.01%     -    2s

Explored 1 nodes (8419 simplex iterations) in 2.97 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.310900000000e+04, best bound 6.310283146067e+04, gap 0.0098%