Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:28:57 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 5.663064e+04, 5267 iterations, 3.09 seconds

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

     0     0 56630.6364    0   52          - 56630.6364     -      -    3s
H    0     0                    77917.000000 56630.6364  27.3%     -    5s
     0     0 70046.4905    0    7 77917.0000 70046.4905  10.1%     -    8s
H    0     0                    75230.627157 70046.4905  6.89%     -    8s
H    0     0                    72549.000000 70046.4905  3.45%     -    8s
     0     0 70228.8169    0    3 72549.0000 70228.8169  3.20%     -    8s
H    0     0                    71495.000000 70228.8169  1.77%     -    8s
H    0     0                    70274.000000 70228.8169  0.06%     -    8s
     0     0 70253.5005    0    3 70274.0000 70253.5005  0.03%     -    9s
     0     0 70267.1977    0    3 70274.0000 70267.1977  0.01%     -    9s

Cutting planes:
  Implied bound: 55

Explored 0 nodes (8743 simplex iterations) in 9.20 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.027400000000e+04, best bound 7.026719774160e+04, gap 0.0097%