Gurobi 5.0.1 (linux64) logging started Wed Dec 19 14:03:57 2012

Optimize a model with 1762 rows, 1681 columns and 10007 nonzeros
Presolve removed 811 rows and 1071 columns
Presolve time: 0.05s
Presolved: 951 rows, 610 columns, 15796 nonzeros
Variable types: 35 continuous, 575 integer (575 binary)

Root relaxation: objective 4.942730e+02, 163 iterations, 0.00 seconds

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

     0     0  494.27296    0   22          -  494.27296     -      -    0s
     0     0  499.00000    0    6          -  499.00000     -      -    0s
     0     0  499.00000    0   22          -  499.00000     -      -    0s
     0     0  499.00000    0    6          -  499.00000     -      -    0s
     0     0  499.00000    0    6          -  499.00000     -      -    0s
     0     0  499.00000    0    6          -  499.00000     -      -    0s
H    0     0                     499.0000000  499.00000   0.0%     -    0s

Cutting planes:
  Learned: 2
  Gomory: 3
  MIR: 4
  Mod-K: 1

Explored 0 nodes (431 simplex iterations) in 0.19 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.990000000000e+02, best bound 4.990000000000e+02, gap 0.0%