Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:12 2013

Optimize a model with 48 rows, 96 columns and 398 nonzeros
Presolve removed 22 rows and 24 columns
Presolve time: 0.00s
Presolved: 26 rows, 72 columns, 312 nonzeros
Variable types: 62 continuous, 10 integer (10 binary)

Root relaxation: objective 4.810927e+03, 16 iterations, 0.00 seconds

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

     0     0 4810.92679    0    6          - 4810.92679     -      -    0s
     0     0 4818.56034    0    8          - 4818.56034     -      -    0s
     0     0 4830.74286    0    2          - 4830.74286     -      -    0s
     0     0 4830.88338    0    2          - 4830.88338     -      -    0s
H    0     0                    4831.0178459 4830.88338  0.00%     -    0s

Cutting planes:
  Implied bound: 1
  Flow cover: 1

Explored 0 nodes (51 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.831017845887e+03, best bound 4.830883382091e+03, gap 0.0028%