Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:59:41 2012

Optimize a model with 395 rows, 281 columns and 1266 nonzeros
Presolve time: 0.00s
Presolved: 395 rows, 281 columns, 1266 nonzeros
Variable types: 0 continuous, 281 integer (281 binary)
Found heuristic solution: objective 93.0000000

Root relaxation: objective 0.000000e+00, 113 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   83   93.00000    0.00000   100%     -    0s
H    0     0                      73.0000000    0.00000   100%     -    0s
     0     0    0.72332    0   84   73.00000    0.72332  99.0%     -    0s
H    0     0                      64.0000000    0.72332  98.9%     -    0s
     0     0    1.25728    0   87   64.00000    1.25728  98.0%     -    0s
H    0     0                      63.0000000    1.25728  98.0%     -    0s
     0     0    1.28232    0   87   63.00000    1.28232  98.0%     -    0s
     0     0    1.28794    0   88   63.00000    1.28794  98.0%     -    0s
     0     0    1.28794    0   88   63.00000    1.28794  98.0%     -    0s
     0     2    1.29372    0   88   63.00000    1.29372  97.9%     -    0s
*   48    47              29      46.0000000    5.22251  88.6%  30.3    0s
*  209   160              25      44.0000000    7.65264  82.6%  29.7    0s
*  367   286              24      43.0000000    9.78345  77.2%  31.2    0s
*  566   350              15      38.0000000   12.29882  67.6%  30.4    0s
H 1620   408                      37.0000000   19.29167  47.9%  28.4    1s
  4516   376     cutoff   23        37.00000   26.46154  28.5%  26.5    5s

Explored 6386 nodes (164365 simplex iterations) in 6.69 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.700000000000e+01, best bound 3.700000000000e+01, gap 0.0%