Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:46:32 2013

Optimize a model with 580 rows, 1265 columns and 4025 nonzeros
Presolve removed 5 rows and 5 columns
Presolve time: 0.05s
Presolved: 575 rows, 1260 columns, 3520 nonzeros
Variable types: 760 continuous, 500 integer (500 binary)

Root relaxation: objective 9.876190e+03, 50 iterations, 0.00 seconds

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

     0     0 9876.18952    0    2          - 9876.18952     -      -    0s
     0     0 9886.84365    0    4          - 9886.84365     -      -    0s
     0     0 9893.22508    0    4          - 9893.22508     -      -    0s
     0     0 9894.20733    0    3          - 9894.20733     -      -    0s
     0     0 9895.12113    0    4          - 9895.12113     -      -    0s
     0     0 9897.46311    0    2          - 9897.46311     -      -    0s
     0     0 9897.98248    0    7          - 9897.98248     -      -    0s
     0     0 9898.78968    0    5          - 9898.78968     -      -    0s
     0     0 9898.78968    0    5          - 9898.78968     -      -    0s
     0     2 9898.78968    0    5          - 9898.78968     -      -    0s
*   19     5              12    9942.9596239 9942.94727  0.00%   9.2    0s

Cutting planes:
  Gomory: 2
  Implied bound: 14
  Flow cover: 2

Explored 20 nodes (309 simplex iterations) in 0.22 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.942959623924e+03, best bound 9.942947270673e+03, gap 0.0001%