Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:50 2013

Optimize a model with 720 rows, 4860 columns and 10900 nonzeros
Presolve removed 20 rows and 20 columns
Presolve time: 0.03s
Presolved: 700 rows, 4840 columns, 10480 nonzeros
Variable types: 4440 continuous, 400 integer (400 binary)

Root relaxation: objective 3.709539e+04, 433 iterations, 0.01 seconds

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

     0     0 37095.3933    0    8          - 37095.3933     -      -    0s
     0     0 37139.4738    0    6          - 37139.4738     -      -    0s
     0     0 37139.6401    0    7          - 37139.6401     -      -    0s
     0     0 37140.4817    0    2          - 37140.4817     -      -    0s
     0     0 37140.4817    0    2          - 37140.4817     -      -    0s
     0     0 37140.4817    0    2          - 37140.4817     -      -    0s
     0     0 37140.4817    0    2          - 37140.4817     -      -    0s
     0     0 37140.4817    0    2          - 37140.4817     -      -    0s
H    0     0                    37291.650431 37140.4817  0.41%     -    0s
     0     1 37175.5998    0    5 37291.6504 37175.5998  0.31%     -    0s
*   27     4              23    37253.378676 37252.7906  0.00%  14.3    0s

Cutting planes:
  Gomory: 2
  Implied bound: 13
  Flow cover: 5

Explored 28 nodes (1319 simplex iterations) in 0.26 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.725337867584e+04, best bound 3.725279063639e+04, gap 0.0016%