Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:24:20 2013

Optimize a model with 32032 rows, 31472 columns and 125552 nonzeros
Presolve removed 56 rows and 0 columns
Presolve time: 0.14s
Presolved: 31976 rows, 31472 columns, 125496 nonzeros
Variable types: 31416 continuous, 56 integer (56 binary)

Root relaxation: objective 4.758748e+04, 4034 iterations, 1.95 seconds

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

     0     0 47587.4774    0   48          - 47587.4774     -      -    2s
H    0     0                    69084.000000 47587.4774  31.1%     -    3s
     0     0 58151.6209    0    9 69084.0000 58151.6209  15.8%     -    6s
H    0     0                    65098.054107 58151.6209  10.7%     -    6s
H    0     0                    60952.000000 58151.6209  4.59%     -    6s
     0     0 59125.4951    0    4 60952.0000 59125.4951  3.00%     -    6s
H    0     0                    60585.807295 59125.4951  2.41%     -    6s
H    0     0                    59634.000000 59125.4951  0.85%     -    6s
H    0     0                    59620.000000 59125.4951  0.83%     -    6s
H    0     0                    59206.000000 59125.4951  0.14%     -    7s
     0     1 59129.0778    0    2 59206.0000 59129.0778  0.13%     -    7s

Cutting planes:
  Gomory: 1
  Implied bound: 51

Explored 5 nodes (7642 simplex iterations) in 7.45 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.920600000000e+04, best bound 5.920600000000e+04, gap 0.0%