Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:47:13 2012

Optimize a model with 433 rows, 311 columns and 1391 nonzeros
Presolve time: 0.00s
Presolved: 433 rows, 311 columns, 1391 nonzeros
Variable types: 0 continuous, 311 integer (311 binary)
Found heuristic solution: objective 92.0000000

Root relaxation: objective 0.000000e+00, 137 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   94   92.00000    0.00000   100%     -    0s
H    0     0                      71.0000000    0.00000   100%     -    0s
     0     0    0.67647    0   95   71.00000    0.67647  99.0%     -    0s
     0     0    0.82529    0  101   71.00000    0.82529  98.8%     -    0s
     0     0    0.82640    0   98   71.00000    0.82640  98.8%     -    0s
     0     0    0.82671    0   98   71.00000    0.82671  98.8%     -    0s
     0     2    0.88235    0   98   71.00000    0.88235  98.8%     -    0s
H   27    27                      69.0000000    4.76471  93.1%  34.4    0s
*   50    50              27      48.0000000    4.76471  90.1%  26.9    0s
*  129   108              23      45.0000000    7.65158  83.0%  29.0    0s
*  188   136              18      39.0000000    8.07919  79.3%  31.3    0s
  4014   944   29.48193   18  138   39.00000   24.00000  38.5%  25.5    5s
* 6913  1156              29      38.0000000   26.76923  29.6%  25.1    7s
  9065  1083   35.04412   21  129   38.00000   28.40000  25.3%  24.8   10s
 14858   151     cutoff   21        38.00000   34.54054  9.10%  24.3   15s

Explored 15070 nodes (365282 simplex iterations) in 15.11 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%