Gurobi 5.0.1 (linux64) logging started Wed Dec 19 14:01:25 2012

Optimize a model with 442 rows, 441 columns and 1922 nonzeros
Presolve removed 298 rows and 216 columns
Presolve time: 0.01s
Presolved: 144 rows, 225 columns, 1189 nonzeros
Variable types: 20 continuous, 205 integer (205 binary)

Root relaxation: objective 2.851260e+02, 82 iterations, 0.00 seconds

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

     0     0  285.12598    0   35          -  285.12598     -      -    0s
     0     0  307.42629    0   23          -  307.42629     -      -    0s
     0     0  311.14681    0   24          -  311.14681     -      -    0s
     0     0  311.51237    0   26          -  311.51237     -      -    0s
     0     0  311.54171    0   26          -  311.54171     -      -    0s
     0     0  311.54171    0   26          -  311.54171     -      -    0s
     0     0  312.25000    0   11          -  312.25000     -      -    0s
     0     0  312.25000    0   11          -  312.25000     -      -    0s
H    0     0                     338.0000000  312.25000  7.62%     -    0s
     0     0  312.25000    0   32  338.00000  312.25000  7.62%     -    0s
     0     0  312.25000    0   13  338.00000  312.25000  7.62%     -    0s
     0     0  312.25000    0   11  338.00000  312.25000  7.62%     -    0s
     0     0  312.25000    0   11  338.00000  312.25000  7.62%     -    0s
     0     0  312.25000    0   11  338.00000  312.25000  7.62%     -    0s
     0     2  313.00000    0   11  338.00000  313.00000  7.40%     -    0s

Cutting planes:
  Gomory: 2
  Cover: 26
  Implied bound: 28
  Clique: 1
  MIR: 10
  GUB cover: 2
  Zero half: 1

Explored 156 nodes (1371 simplex iterations) in 0.11 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.380000000000e+02, best bound 3.380000000000e+02, gap 0.0%