Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:25:15 2012

Optimize a model with 257 rows, 201 columns and 841 nonzeros
Presolve time: 0.00s
Presolved: 257 rows, 201 columns, 841 nonzeros
Variable types: 0 continuous, 201 integer (201 binary)
Found heuristic solution: objective 54.0000000

Root relaxation: objective 0.000000e+00, 92 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   70   54.00000    0.00000   100%     -    0s
H    0     0                      51.0000000    0.00000   100%     -    0s
H    0     0                      47.0000000    0.00000   100%     -    0s
     0     0    0.48571    0   71   47.00000    0.48571  99.0%     -    0s
H    0     0                      44.0000000    0.48571  98.9%     -    0s
     0     0    1.05036    0   72   44.00000    1.05036  97.6%     -    0s
     0     0    1.40724    0   73   44.00000    1.40724  96.8%     -    0s
     0     0    1.42224    0   74   44.00000    1.42224  96.8%     -    0s
H    0     0                      43.0000000    1.42224  96.7%     -    0s
H    0     0                      40.0000000    1.42224  96.4%     -    0s
H    0     0                      39.0000000    1.42224  96.4%     -    0s
     0     2    1.42510    0   74   39.00000    1.42510  96.3%     -    0s
*   26    24              17      22.0000000    3.47775  84.2%  29.7    0s
*   55    31              10      21.0000000    6.80056  67.6%  27.5    0s
*  237    51              14      20.0000000   10.10956  49.5%  22.5    0s

Cutting planes:
  Gomory: 4

Explored 487 nodes (11035 simplex iterations) in 0.40 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.000000000000e+01, best bound 2.000000000000e+01, gap 0.0%