Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:14 2013

Optimize a model with 121 rows, 1221 columns and 2431 nonzeros
Presolve time: 0.00s
Presolved: 121 rows, 1221 columns, 2431 nonzeros
Variable types: 1210 continuous, 11 integer (11 binary)

Root relaxation: objective 1.870122e+04, 128 iterations, 0.00 seconds

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

     0     0 18701.2222    0    1          - 18701.2222     -      -    0s
H    0     0                    18747.000000 18701.2222  0.24%     -    0s
     0     0 18743.8831    0    1 18747.0000 18743.8831  0.02%     -    0s
     0     0 18746.1429    0    1 18747.0000 18746.1429  0.00%     -    0s

Cutting planes:
  Implied bound: 11
  Flow cover: 9

Explored 0 nodes (142 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.874700000000e+04, best bound 1.874614285714e+04, gap 0.0046%