Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:55:35 2012

Optimize a model with 243 rows, 144 columns and 749 nonzeros
Presolve time: 0.00s
Presolved: 243 rows, 144 columns, 749 nonzeros
Variable types: 0 continuous, 144 integer (144 binary)
Found heuristic solution: objective 61.0000000

Root relaxation: objective 0.000000e+00, 42 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   23   61.00000    0.00000   100%     -    0s
     0     0    0.57391    0   24   61.00000    0.57391  99.1%     -    0s
H    0     0                      60.0000000    0.57391  99.0%     -    0s
H    0     0                      54.0000000    0.57391  98.9%     -    0s
     0     0    1.43692    0   26   54.00000    1.43692  97.3%     -    0s
     0     0    1.49053    0   28   54.00000    1.49053  97.2%     -    0s
     0     0    1.55210    0   26   54.00000    1.55210  97.1%     -    0s
     0     0    1.55349    0   26   54.00000    1.55349  97.1%     -    0s
H    0     0                      53.0000000    1.55349  97.1%     -    0s
     0     2    1.67177    0   26   53.00000    1.67177  96.8%     -    0s
*  173    95              14      51.0000000   16.77778  67.1%  26.1    0s
*  193    94              15      50.0000000   16.77778  66.4%  24.4    0s
*  195    87              14      47.0000000   16.77778  64.3%  24.2    0s
*  351   115              13      45.0000000   22.18182  50.7%  22.4    0s
*  491   128              11      43.0000000   26.23529  39.0%  21.5    0s

Cutting planes:
  Gomory: 3
  Zero half: 11

Explored 1381 nodes (27637 simplex iterations) in 0.64 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.300000000000e+01, best bound 4.300000000000e+01, gap 0.0%