Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:16:39 2012

Optimize a model with 339 rows, 228 columns and 1073 nonzeros
Presolve time: 0.00s
Presolved: 339 rows, 228 columns, 1073 nonzeros
Variable types: 0 continuous, 228 integer (228 binary)
Found heuristic solution: objective 68.0000000

Root relaxation: objective 0.000000e+00, 93 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   59   68.00000    0.00000   100%     -    0s
H    0     0                      67.0000000    0.00000   100%     -    0s
     0     0    0.68182    0   63   67.00000    0.68182  99.0%     -    0s
H    0     0                      64.0000000    0.68182  98.9%     -    0s
     0     0    0.79536    0   64   64.00000    0.79536  98.8%     -    0s
H    0     0                      60.0000000    0.79536  98.7%     -    0s
     0     0    0.86477    0   72   60.00000    0.86477  98.6%     -    0s
     0     0    0.86993    0   67   60.00000    0.86993  98.6%     -    0s
     0     0    0.89177    0   65   60.00000    0.89177  98.5%     -    0s
     0     0    0.89492    0   73   60.00000    0.89492  98.5%     -    0s
H    0     0                      59.0000000    0.89492  98.5%     -    0s
H    0     0                      57.0000000    0.89492  98.4%     -    0s
     0     2    0.91100    0   73   57.00000    0.91100  98.4%     -    0s
H   27    27                      53.0000000    3.63908  93.1%  32.3    0s
*   34    34              19      41.0000000    3.63908  91.1%  28.5    0s
H  715   308                      40.0000000   19.07692  52.3%  23.0    0s

Explored 5986 nodes (127868 simplex iterations) in 4.73 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+01, best bound 4.000000000000e+01, gap 0.0%