Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:57:05 2012

Optimize a model with 291 rows, 169 columns and 894 nonzeros
Presolve time: 0.00s
Presolved: 291 rows, 169 columns, 894 nonzeros
Variable types: 0 continuous, 169 integer (169 binary)
Found heuristic solution: objective 78.0000000

Root relaxation: objective 0.000000e+00, 49 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   24   78.00000    0.00000   100%     -    0s
H    0     0                      75.0000000    0.00000   100%     -    0s
H    0     0                      71.0000000    0.00000   100%     -    0s
     0     0    0.87500    0   26   71.00000    0.87500  98.8%     -    0s
H    0     0                      63.0000000    0.87500  98.6%     -    0s
     0     0    1.03528    0   40   63.00000    1.03528  98.4%     -    0s
     0     0    1.18750    0   26   63.00000    1.18750  98.1%     -    0s
     0     0    1.18750    0   26   63.00000    1.18750  98.1%     -    0s
     0     0    1.18750    0   26   63.00000    1.18750  98.1%     -    0s
     0     0    1.18750    0   26   63.00000    1.18750  98.1%     -    0s
H    0     0                      62.0000000    1.18750  98.1%     -    0s
     0     2    1.25000    0   26   62.00000    1.25000  98.0%     -    0s
*  337   134              13      57.0000000   25.62500  55.0%  21.7    0s
*  480   158              13      55.0000000   28.35714  48.4%  21.1    0s
*  489   157              16      54.0000000   28.35714  47.5%  20.9    0s

Cutting planes:
  Gomory: 1
  Mod-K: 3

Explored 2279 nodes (43429 simplex iterations) in 1.25 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.400000000000e+01, best bound 5.400000000000e+01, gap 0.0%