Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:16:11 2013

Optimize a model with 583 rows, 28143 columns and 56233 nonzeros
Presolve time: 0.04s
Presolved: 583 rows, 28143 columns, 56233 nonzeros
Variable types: 28090 continuous, 53 integer (53 binary)

Root relaxation: objective 6.653945e+04, 1451 iterations, 0.03 seconds

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

     0     0 66539.4494    0    2          - 66539.4494     -      -    0s
H    0     0                    66748.000000 66539.4494  0.31%     -    0s
     0     0 66718.2182    0    2 66748.0000 66718.2182  0.04%     -    0s
     0     0 66728.8182    0    1 66748.0000 66728.8182  0.03%     -    0s
     0     0 66728.8182    0    2 66748.0000 66728.8182  0.03%     -    0s
     0     0 66728.8182    0    2 66748.0000 66728.8182  0.03%     -    0s
     0     0 66728.8182    0    4 66748.0000 66728.8182  0.03%     -    0s
     0     0 66728.8182    0    2 66748.0000 66728.8182  0.03%     -    0s
     0     0 66728.8182    0    4 66748.0000 66728.8182  0.03%     -    0s
     0     0 66728.8182    0    1 66748.0000 66728.8182  0.03%     -    0s
     0     0 66746.0615    0    1 66748.0000 66746.0615  0.00%     -    0s

Cutting planes:
  Implied bound: 28

Explored 0 nodes (2435 simplex iterations) in 0.47 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.674800000000e+04, best bound 6.674606153846e+04, gap 0.0029%