Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:28:05 2013

Optimize a model with 34336 rows, 33756 columns and 134676 nonzeros
Presolve removed 58 rows and 0 columns
Presolve time: 0.15s
Presolved: 34278 rows, 33756 columns, 134618 nonzeros
Variable types: 33698 continuous, 58 integer (58 binary)

Root relaxation: objective 5.638871e+04, 5528 iterations, 2.98 seconds

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

     0     0 56388.7102    0   48          - 56388.7102     -      -    3s
H    0     0                    82287.000000 56388.7102  31.5%     -    4s
     0     0 72343.7350    0   12 82287.0000 72343.7350  12.1%     -    7s
H    0     0                    76997.000000 72343.7350  6.04%     -    7s
     0     0 72877.3383    0    6 76997.0000 72877.3383  5.35%     -    7s
H    0     0                    76828.499301 72877.3383  5.14%     -    7s
H    0     0                    74811.000000 72877.3383  2.58%     -    7s
H    0     0                    72979.000000 72877.3383  0.14%     -    8s
     0     2 72880.1613    0    6 72979.0000 72880.1613  0.14%     -    9s

Cutting planes:
  Implied bound: 55

Explored 14 nodes (11198 simplex iterations) in 9.81 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.297900000000e+04, best bound 7.297900000000e+04, gap 0.0%