Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:37:17 2013

Optimize a model with 671 rows, 37271 columns and 74481 nonzeros
Presolve time: 0.05s
Presolved: 671 rows, 37271 columns, 74481 nonzeros
Variable types: 37210 continuous, 61 integer (61 binary)

Root relaxation: objective 6.616129e+04, 1317 iterations, 0.03 seconds

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

     0     0 66161.2859    0    7          - 66161.2859     -      -    0s
H    0     0                    68483.000000 66161.2859  3.39%     -    0s
H    0     0                    66332.000000 66161.2859  0.26%     -    0s
     0     0 66265.6218    0    5 66332.0000 66265.6218  0.10%     -    0s
     0     0 66265.6218    0    7 66332.0000 66265.6218  0.10%     -    0s
     0     0 66268.3010    0    5 66332.0000 66268.3010  0.10%     -    0s
     0     0 66286.8940    0    4 66332.0000 66286.8940  0.07%     -    0s
     0     0 66289.0170    0    5 66332.0000 66289.0170  0.06%     -    0s
     0     0 66289.4151    0    4 66332.0000 66289.4151  0.06%     -    0s
     0     0 66324.2088    0    3 66332.0000 66324.2088  0.01%     -    0s
     0     0     cutoff    0      66332.0000 66332.0000   0.0%     -    0s

Cutting planes:
  Implied bound: 41

Explored 0 nodes (2726 simplex iterations) in 0.65 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.633200000000e+04, best bound 6.633200000000e+04, gap 0.0%