Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:26 2012

Optimize a model with 155 rows, 132 columns and 517 nonzeros
Presolve removed 0 rows and 1 columns
Presolve time: 0.00s
Presolved: 155 rows, 131 columns, 516 nonzeros
Variable types: 0 continuous, 131 integer (130 binary)
Found heuristic solution: objective 31.0000000

Root relaxation: objective 0.000000e+00, 81 iterations, 0.00 seconds

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

     0     0    0.00000    0   51   31.00000    0.00000   100%     -    0s
H    0     0                      26.0000000    0.00000   100%     -    0s
     0     0    0.50193    0   55   26.00000    0.50193  98.1%     -    0s
     0     0    1.02828    0   57   26.00000    1.02828  96.0%     -    0s
H    0     0                      20.0000000    1.02828  94.9%     -    0s
H    0     0                      16.0000000    1.02828  93.6%     -    0s
     0     0    1.02828    0   57   16.00000    1.02828  93.6%     -    0s
H    0     0                      15.0000000    1.02828  93.1%     -    0s
     0     2    1.03095    0   57   15.00000    1.03095  93.1%     -    0s
*   16    14              10      10.0000000    2.83089  71.7%  24.4    0s
*   57    15              12       9.0000000    3.27484  63.6%  19.2    0s

Cutting planes:
  Gomory: 4
  Zero half: 1

Explored 108 nodes (2518 simplex iterations) in 0.11 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%