Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:00:52 2013

Optimize a model with 45 rows, 36 columns and 120 nonzeros
Presolve removed 15 rows and 15 columns
Presolve time: 0.00s
Presolved: 30 rows, 21 columns, 90 nonzeros
Variable types: 6 continuous, 15 integer (15 binary)

Root relaxation: objective 3.370000e+02, 8 iterations, 0.00 seconds

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

     0     0  337.00000    0    6          -  337.00000     -      -    0s
     0     0  425.29114    0    4          -  425.29114     -      -    0s
     0     0  432.01600    0    5          -  432.01600     -      -    0s
     0     0  437.23355    0    5          -  437.23355     -      -    0s
     0     0  438.39399    0    5          -  438.39399     -      -    0s
     0     0  439.75245    0    5          -  439.75245     -      -    0s
     0     0  439.75245    0    5          -  439.75245     -      -    0s
H    0     0                     553.0000000  439.75245  20.5%     -    0s
     0     2  442.43791    0    5  553.00000  442.43791  20.0%     -    0s
*    8     5               6     530.0000000  459.48358  13.3%   1.8    0s
*   19     2               6     526.0000000  485.00000  7.79%   2.1    0s

Cutting planes:
  MIR: 12

Explored 22 nodes (72 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.260000000000e+02, best bound 5.260000000000e+02, gap 0.0%