Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:53:59 2012

Optimize a model with 215 rows, 128 columns and 663 nonzeros
Presolve time: 0.00s
Presolved: 215 rows, 128 columns, 663 nonzeros
Variable types: 0 continuous, 128 integer (128 binary)
Found heuristic solution: objective 49.0000000

Root relaxation: objective 0.000000e+00, 46 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   21   49.00000    0.00000   100%     -    0s
     0     0    1.17701    0   33   49.00000    1.17701  97.6%     -    0s
     0     0    1.24533    0   34   49.00000    1.24533  97.5%     -    0s
     0     0    1.24533    0   34   49.00000    1.24533  97.5%     -    0s
     0     0    1.24533    0   34   49.00000    1.24533  97.5%     -    0s
     0     0    1.24533    0   34   49.00000    1.24533  97.5%     -    0s
     0     2    1.58824    0   34   49.00000    1.58824  96.8%     -    0s
*  154    97              16      48.0000000   19.50000  59.4%  20.7    0s
*  159    95              15      47.0000000   19.50000  58.5%  20.1    0s
*  160    84              15      45.0000000   19.50000  56.7%  20.1    0s
*  177    84              13      44.0000000   19.50000  55.7%  19.1    0s
*  178    83              12      43.0000000   19.50000  54.7%  19.1    0s
* 1100    66              12      42.0000000   35.11111  16.4%  16.6    0s

Cutting planes:
  Gomory: 1
  Mod-K: 4

Explored 1251 nodes (20234 simplex iterations) in 0.42 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.200000000000e+01, best bound 4.200000000000e+01, gap 0.0%