Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:59:00 2012

Optimize a model with 291 rows, 170 columns and 895 nonzeros
Presolve time: 0.00s
Presolved: 291 rows, 170 columns, 895 nonzeros
Variable types: 0 continuous, 170 integer (170 binary)
Found heuristic solution: objective 68.0000000

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   25   68.00000    0.00000   100%     -    0s
H    0     0                      67.0000000    0.00000   100%     -    0s
H    0     0                      65.0000000    0.00000   100%     -    0s
     0     0    1.14857    0   27   65.00000    1.14857  98.2%     -    0s
     0     0    1.30503    0   36   65.00000    1.30503  98.0%     -    0s
     0     0    1.35357    0   47   65.00000    1.35357  97.9%     -    0s
     0     0    1.57714    0   28   65.00000    1.57714  97.6%     -    0s
     0     0    1.63571    0   33   65.00000    1.63571  97.5%     -    0s
     0     0    1.64039    0   34   65.00000    1.64039  97.5%     -    0s
     0     0    1.64370    0   33   65.00000    1.64370  97.5%     -    0s
H    0     0                      61.0000000    1.64370  97.3%     -    0s
     0     0    1.65079    0   33   61.00000    1.65079  97.3%     -    0s
     0     2    1.79911    0   33   61.00000    1.79911  97.1%     -    0s
*  250   114              15      57.0000000   18.35714  67.8%  25.7    0s
H 3567   284                      55.0000000   44.12500  19.8%  19.1    2s

Cutting planes:
  Gomory: 1
  Mod-K: 3

Explored 4874 nodes (85843 simplex iterations) in 2.75 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.500000000000e+01, best bound 5.500000000000e+01, gap 0.0%