Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:32:45 2013

Optimize a model with 35518 rows, 34928 columns and 139358 nonzeros
Presolve removed 59 rows and 0 columns
Presolve time: 0.15s
Presolved: 35459 rows, 34928 columns, 139299 nonzeros
Variable types: 34869 continuous, 59 integer (59 binary)

Root relaxation: objective 5.317231e+04, 4850 iterations, 2.25 seconds

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

     0     0 53172.3107    0   46          - 53172.3107     -      -    2s
H    0     0                    73539.000000 53172.3107  27.7%     -    3s
     0     0 64103.4572    0   13 73539.0000 64103.4572  12.8%     -    7s
H    0     0                    69520.000000 64103.4572  7.79%     -    7s
     0     0 65587.7211    0    6 69520.0000 65587.7211  5.66%     -    8s
H    0     0                    66033.000000 65587.7211  0.67%     -    8s
H    0     0                    65641.000000 65587.7211  0.08%     -    8s
     0     0 65590.8556    0    5 65641.0000 65590.8556  0.08%     -    8s
     0     0 65640.4146    0    1 65641.0000 65640.4146  0.00%     -    9s

Cutting planes:
  Implied bound: 51

Explored 0 nodes (9699 simplex iterations) in 9.09 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.564100000000e+04, best bound 6.564041463415e+04, gap 0.0009%