Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:03:40 2012

Optimize a model with 555 rows, 511 columns and 1896 nonzeros
Presolve removed 0 rows and 13 columns
Presolve time: 0.00s
Presolved: 555 rows, 498 columns, 1883 nonzeros
Variable types: 0 continuous, 498 integer (497 binary)
Found heuristic solution: objective 106.0000000

Root relaxation: objective 0.000000e+00, 316 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  213  106.00000    0.00000   100%     -    0s
H    0     0                      71.0000000    0.00000   100%     -    0s
     0     0    0.44965    0  215   71.00000    0.44965  99.4%     -    0s
H    0     0                      52.0000000    0.44965  99.1%     -    0s
     0     0    0.45028    0  216   52.00000    0.45028  99.1%     -    0s
H    0     0                      50.0000000    0.45028  99.1%     -    0s
     0     0    0.45283    0  215   50.00000    0.45283  99.1%     -    0s
H    0     0                      46.0000000    0.45283  99.0%     -    0s
     0     0    0.45455    0  215   46.00000    0.45455  99.0%     -    0s
     0     0    0.45455    0  215   46.00000    0.45455  99.0%     -    0s
     0     2    0.45455    0  215   46.00000    0.45455  99.0%     -    0s
H   27    27                      34.0000000    1.00000  97.1%  38.1    0s
H   45    33                      17.0000000    1.00000  94.1%  29.7    0s

Explored 2975 nodes (73499 simplex iterations) in 4.60 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%