Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:44:18 2013

Optimize a model with 693 rows, 39753 columns and 79443 nonzeros
Presolve time: 0.06s
Presolved: 693 rows, 39753 columns, 79443 nonzeros
Variable types: 39690 continuous, 63 integer (63 binary)

Root relaxation: objective 6.300531e+04, 1258 iterations, 0.03 seconds

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

     0     0 63005.3146    0    7          - 63005.3146     -      -    0s
H    0     0                    65300.000000 63005.3146  3.51%     -    0s
     0     0 63222.8932    0    5 65300.0000 63222.8932  3.18%     -    0s
     0     0 63252.3932    0    4 65300.0000 63252.3932  3.14%     -    0s
     0     0 63269.7685    0    5 65300.0000 63269.7685  3.11%     -    0s
     0     0 63278.9733    0    5 65300.0000 63278.9733  3.09%     -    0s
     0     0 63282.7048    0    6 65300.0000 63282.7048  3.09%     -    0s
     0     0 63282.7580    0    4 65300.0000 63282.7580  3.09%     -    0s
     0     0 63282.7580    0    4 65300.0000 63282.7580  3.09%     -    0s
H    0     0                    63359.000000 63282.7580  0.12%     -    0s
     0     2 63305.8174    0    4 63359.0000 63305.8174  0.08%     -    0s

Cutting planes:
  Implied bound: 68
  Flow cover: 5

Explored 8 nodes (1704 simplex iterations) in 1.03 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.335900000000e+04, best bound 6.335900000000e+04, gap 0.0%