Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:26:25 2013

Optimize a model with 33174 rows, 32604 columns and 130074 nonzeros
Presolve removed 57 rows and 0 columns
Presolve time: 0.14s
Presolved: 33117 rows, 32604 columns, 130017 nonzeros
Variable types: 32547 continuous, 57 integer (57 binary)

Root relaxation: objective 4.907197e+04, 4298 iterations, 1.75 seconds

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

     0     0 49071.9721    0   42          - 49071.9721     -      -    2s
H    0     0                    69142.000000 49071.9721  29.0%     -    3s
     0     0 58424.1153    0   14 69142.0000 58424.1153  15.5%     -    5s
H    0     0                    65644.458126 58424.1153  11.0%     -    5s
H    0     0                    61313.000000 58424.1153  4.71%     -    5s
     0     0 59402.0621    0    4 61313.0000 59402.0621  3.12%     -    6s
H    0     0                    60792.000000 59402.0621  2.29%     -    6s
     0     2 59405.3253    0    4 60792.0000 59405.3253  2.28%     -    6s
H    5     5                    60765.475610 59472.6292  2.13%   160    7s
H    6     6                    60400.338843 59472.6292  1.54%   152    7s
H    7     6                    59706.603448 59472.6292  0.39%   137    7s
H    8     5                    59682.500000 59472.6292  0.35%   124    7s
H    9     6                    59624.105263 59472.6292  0.25%   111    7s
*   10     7               9    59582.000000 59472.6292  0.18%   103    7s

Cutting planes:
  Implied bound: 49

Explored 19 nodes (9272 simplex iterations) in 7.60 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.958200000000e+04, best bound 5.958200000000e+04, gap 0.0%