Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:18 2012

Optimize a model with 57 rows, 40 columns and 180 nonzeros
Presolve time: 0.00s
Presolved: 57 rows, 40 columns, 180 nonzeros
Variable types: 0 continuous, 40 integer (40 binary)
Found heuristic solution: objective 12.0000000

Root relaxation: objective 0.000000e+00, 17 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   12   12.00000    0.00000   100%     -    0s
H    0     0                      11.0000000    0.00000   100%     -    0s
     0     0    0.97059    0   14   11.00000    0.97059  91.2%     -    0s
     0     0    1.06915    0   17   11.00000    1.06915  90.3%     -    0s
     0     2    1.20588    0   17   11.00000    1.20588  89.0%     -    0s
*   20     7               6      10.0000000    3.75000  62.5%   7.8    0s
*   24     5               6       9.0000000    3.75000  58.3%   6.9    0s

Cutting planes:
  Gomory: 1
  Mod-K: 2

Explored 38 nodes (303 simplex iterations) in 0.01 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%