Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:11:03 2013

Optimize a model with 469 rows, 196 columns and 1470 nonzeros
Presolve removed 209 rows and 110 columns
Presolve time: 0.00s
Presolved: 260 rows, 86 columns, 844 nonzeros
Variable types: 6 continuous, 80 integer (80 binary)
Found heuristic solution: objective 2314.0000000

Root relaxation: objective 1.676319e+03, 9 iterations, 0.00 seconds

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

     0     0 1676.31941    0    5 2314.00000 1676.31941  27.6%     -    0s
H    0     0                    1691.0000000 1676.31941  0.87%     -    0s
     0     0 1679.26311    0   18 1691.00000 1679.26311  0.69%     -    0s
     0     0 1680.16045    0   17 1691.00000 1680.16045  0.64%     -    0s
     0     0 1680.16045    0    5 1691.00000 1680.16045  0.64%     -    0s
     0     0 1680.60398    0   17 1691.00000 1680.60398  0.61%     -    0s
     0     0 1682.93830    0   17 1691.00000 1682.93830  0.48%     -    0s
     0     0 1685.14443    0   16 1691.00000 1685.14443  0.35%     -    0s
     0     0 1686.50000    0   11 1691.00000 1686.50000  0.27%     -    0s
     0     0 1686.50000    0    7 1691.00000 1686.50000  0.27%     -    0s
     0     0 1686.50000    0    7 1691.00000 1686.50000  0.27%     -    0s
     0     0 1686.50000    0    3 1691.00000 1686.50000  0.27%     -    0s
     0     0 1686.50000    0    5 1691.00000 1686.50000  0.27%     -    0s

Cutting planes:
  Cover: 1
  Implied bound: 1
  Clique: 2
  MIR: 7
  GUB cover: 2

Explored 0 nodes (188 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.691000000000e+03, best bound 1.691000000000e+03, gap 0.0%