Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:44:45 2012

Optimize a model with 529 rows, 485 columns and 1805 nonzeros
Presolve removed 0 rows and 14 columns
Presolve time: 0.00s
Presolved: 529 rows, 471 columns, 1791 nonzeros
Variable types: 0 continuous, 471 integer (470 binary)
Found heuristic solution: objective 102.0000000

Root relaxation: objective 0.000000e+00, 257 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  201  102.00000    0.00000   100%     -    0s
H    0     0                      83.0000000    0.00000   100%     -    0s
H    0     0                      75.0000000    0.00000   100%     -    0s
     0     0    0.41735    0  203   75.00000    0.41735  99.4%     -    0s
H    0     0                      68.0000000    0.41735  99.4%     -    0s
     0     0    0.79647    0  206   68.00000    0.79647  98.8%     -    0s
H    0     0                      58.0000000    0.79647  98.6%     -    0s
     0     2    0.79896    0  206   58.00000    0.79896  98.6%     -    0s
H   27    27                      54.0000000    1.00000  98.1%  35.3    0s
H   54    48                      23.0000000    1.00000  95.7%  33.9    0s
*   58    38              38      22.0000000    1.00000  95.5%  33.9    0s
*  105    58              32      21.0000000    1.00000  95.2%  31.4    0s
*  179   105              20      20.0000000    1.00000  95.0%  36.6    0s
*  898   345              27      19.0000000    6.81818  64.1%  34.3    1s
  3329   392   15.88372   20  200   19.00000   13.16216  30.7%  28.9    5s

Explored 5253 nodes (150021 simplex iterations) in 7.41 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.900000000000e+01, best bound 1.900000000000e+01, gap 0.0%