Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:00:41 2013

Optimize a model with 276 rows, 763 columns and 35289 nonzeros
Presolve removed 4 rows and 4 columns
Presolve time: 0.13s
Presolved: 272 rows, 759 columns, 38213 nonzeros
Variable types: 0 continuous, 759 integer (759 binary)
Found heuristic solution: objective 586.0000000
Found heuristic solution: objective 522.0000000

Root relaxation: objective 4.395000e+02, 98 iterations, 0.00 seconds

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

     0     0  439.50000    0    6  522.00000  439.50000  15.8%     -    0s
H    0     0                     450.0000000  439.50000  2.33%     -    0s
     0     0     cutoff    0       450.00000  449.00045  0.22%     -    0s

Cutting planes:
  Gomory: 1
  Clique: 1
  Zero half: 1

Explored 0 nodes (126 simplex iterations) in 0.18 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.500000000000e+02, best bound 4.500000000000e+02, gap 0.0%