Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:27:49 2013

Optimize a model with 638 rows, 33698 columns and 67338 nonzeros
Presolve time: 0.05s
Presolved: 638 rows, 33698 columns, 67338 nonzeros
Variable types: 33640 continuous, 58 integer (58 binary)

Root relaxation: objective 6.299272e+04, 1432 iterations, 0.04 seconds

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

     0     0 62992.7221    0    6          - 62992.7221     -      -    0s
H    0     0                    65889.000000 62992.7221  4.40%     -    0s
     0     0 63445.2118    0    4 65889.0000 63445.2118  3.71%     -    0s
     0     0 63502.9260    0    6 65889.0000 63502.9260  3.62%     -    0s
     0     0 63526.0197    0    4 65889.0000 63526.0197  3.59%     -    0s
H    0     0                    65484.000000 63526.0197  2.99%     -    0s
     0     0 63534.5631    0    4 65484.0000 63534.5631  2.98%     -    0s
H    0     0                    65471.000000 63534.5631  2.96%     -    0s
     0     0 63535.5809    0    4 65471.0000 63535.5809  2.96%     -    0s
     0     0 63536.5824    0    3 65471.0000 63536.5824  2.95%     -    0s
     0     0 63536.5824    0    3 65471.0000 63536.5824  2.95%     -    0s
H    0     0                    65468.000000 63536.5824  2.95%     -    0s
H    0     0                    63899.000000 63536.5824  0.57%     -    0s
     0     2 63539.7991    0    3 63899.0000 63539.7991  0.56%     -    0s
*   10     9               9    63836.000000 63608.7174  0.36%  46.9    1s
*   20    10               9    63765.000000 63637.9853  0.20%  40.0    1s
H   29     3                    63726.000000 63645.7222  0.13%  39.9    1s

Cutting planes:
  Implied bound: 138
  Flow cover: 7

Explored 32 nodes (3045 simplex iterations) in 1.24 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.372600000000e+04, best bound 6.372141775009e+04, gap 0.0072%