Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:44:29 2013

Optimize a model with 693 rows, 39753 columns and 79443 nonzeros
Presolve time: 0.05s
Presolved: 693 rows, 39753 columns, 79443 nonzeros
Variable types: 39690 continuous, 63 integer (63 binary)

Root relaxation: objective 6.623151e+04, 1552 iterations, 0.05 seconds

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

     0     0 66231.5079    0    4          - 66231.5079     -      -    0s
H    0     0                    66814.000000 66231.5079  0.87%     -    0s
     0     0 66417.4762    0    4 66814.0000 66417.4762  0.59%     -    0s
H    0     0                    66518.000000 66417.4762  0.15%     -    0s
     0     0 66447.2568    0    3 66518.0000 66447.2568  0.11%     -    0s
     0     0 66447.2568    0    4 66518.0000 66447.2568  0.11%     -    0s
     0     0 66447.2568    0    4 66518.0000 66447.2568  0.11%     -    0s
     0     0 66450.9257    0    3 66518.0000 66450.9257  0.10%     -    0s
     0     0 66451.1010    0    3 66518.0000 66451.1010  0.10%     -    0s
     0     0 66451.1010    0    3 66518.0000 66451.1010  0.10%     -    0s
     0     0 66451.1010    0    3 66518.0000 66451.1010  0.10%     -    0s
     0     0 66486.3645    0    1 66518.0000 66486.3645  0.05%     -    0s
     0     2 66487.7455    0    1 66518.0000 66487.7455  0.05%     -    0s

Cutting planes:
  Implied bound: 63
  Flow cover: 2

Explored 4 nodes (3113 simplex iterations) in 0.89 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.651800000000e+04, best bound 6.651800000000e+04, gap 0.0%