Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:01:00 2013

Optimize a model with 63 rows, 49 columns and 168 nonzeros
Presolve removed 21 rows and 21 columns
Presolve time: 0.00s
Presolved: 42 rows, 28 columns, 126 nonzeros
Variable types: 7 continuous, 21 integer (21 binary)
Found heuristic solution: objective 1454.0000000

Root relaxation: objective 3.770000e+02, 18 iterations, 0.00 seconds

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

     0     0  377.00000    0   14 1454.00000  377.00000  74.1%     -    0s
     0     0  505.10686    0   19 1454.00000  505.10686  65.3%     -    0s
     0     0  505.10686    0   19 1454.00000  505.10686  65.3%     -    0s
     0     2  508.25384    0   19 1454.00000  508.25384  65.0%     -    0s
*   14    14               9     750.0000000  518.85744  30.8%   4.9    0s

Cutting planes:
  Implied bound: 8
  MIR: 18

Explored 211 nodes (694 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 7.500000000000e+02, best bound 7.500000000000e+02, gap 0.0%