Gurobi 5.0.1 (linux64) logging started Tue Nov 20 06:31:33 2012

Optimize a model with 1061 rows, 140 columns and 2122 nonzeros
Presolve removed 455 rows and 0 columns
Presolve time: 0.01s
Presolved: 606 rows, 140 columns, 1650 nonzeros
Variable types: 0 continuous, 140 integer (140 binary)
Found heuristic solution: objective 28.0000000

Root relaxation: objective 4.502793e+01, 426 iterations, 0.02 seconds

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

     0     0   45.02793    0  138   28.00000   45.02793  60.8%     -    0s
H    0     0                      31.0000000   45.02793  45.3%     -    0s
     0     0   44.61687    0  138   31.00000   44.61687  43.9%     -    0s
     0     0   44.46112    0  140   31.00000   44.46112  43.4%     -    0s
     0     0   44.41144    0  139   31.00000   44.41144  43.3%     -    0s
     0     0   44.39838    0  140   31.00000   44.39838  43.2%     -    0s
     0     0   44.39838    0  140   31.00000   44.39838  43.2%     -    0s
     0     2   44.39838    0  140   31.00000   44.39838  43.2%     -    0s
H   17    17                      33.0000000   44.30715  34.3%  55.6    0s
H 1239   416                      34.0000000   40.50337  19.1%  42.4    3s
  2328   733   37.14010   25   89   34.00000   38.86667  14.3%  37.6    5s
  7019   999   35.24837   29   84   34.00000   36.76829  8.14%  30.4   10s

Explored 10134 nodes (278838 simplex iterations) in 12.35 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.400000000000e+01, best bound 3.400000000000e+01, gap 0.0%