Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:00:27 2012

Optimize a model with 399 rows, 283 columns and 1278 nonzeros
Presolve time: 0.00s
Presolved: 399 rows, 283 columns, 1278 nonzeros
Variable types: 0 continuous, 283 integer (283 binary)
Found heuristic solution: objective 86.0000000

Root relaxation: objective 0.000000e+00, 115 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   86.00000    0.00000   100%     -    0s
H    0     0                      77.0000000    0.00000   100%     -    0s
H    0     0                      76.0000000    0.00000   100%     -    0s
     0     0    0.49807    0   86   76.00000    0.49807  99.3%     -    0s
H    0     0                      73.0000000    0.49807  99.3%     -    0s
     0     0    0.95102    0   88   73.00000    0.95102  98.7%     -    0s
     0     0    0.95176    0   88   73.00000    0.95176  98.7%     -    0s
     0     0    0.95176    0   88   73.00000    0.95176  98.7%     -    0s
H    0     0                      72.0000000    0.95176  98.7%     -    0s
     0     2    0.95232    0   88   72.00000    0.95232  98.7%     -    0s
*   36    36              20      43.0000000    6.75716  84.3%  34.4    0s
*   73    63              21      42.0000000    7.68195  81.7%  32.0    0s
*  327   259              21      41.0000000   11.59318  71.7%  31.3    0s
*  448   318              23      39.0000000   13.67116  64.9%  30.4    0s
H 2718   395                      38.0000000   25.22917  33.6%  26.0    3s
  4734   372   31.73611   24  135   38.00000   28.70588  24.5%  24.0    5s

Explored 7085 nodes (160713 simplex iterations) in 6.76 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.800000000000e+01, best bound 3.800000000000e+01, gap 0.0%