Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:47:33 2012

Optimize a model with 309 rows, 207 columns and 977 nonzeros
Presolve time: 0.00s
Presolved: 309 rows, 207 columns, 977 nonzeros
Variable types: 0 continuous, 207 integer (207 binary)
Found heuristic solution: objective 67.0000000

Root relaxation: objective 0.000000e+00, 85 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   53   67.00000    0.00000   100%     -    0s
H    0     0                      64.0000000    0.00000   100%     -    0s
     0     0    0.50943    0   54   64.00000    0.50943  99.2%     -    0s
H    0     0                      60.0000000    0.50943  99.2%     -    0s
     0     0    1.12976    0   57   60.00000    1.12976  98.1%     -    0s
     0     0    1.14565    0   58   60.00000    1.14565  98.1%     -    0s
     0     0    1.15314    0   57   60.00000    1.15314  98.1%     -    0s
     0     0    1.15662    0   58   60.00000    1.15662  98.1%     -    0s
H    0     0                      58.0000000    1.15662  98.0%     -    0s
H    0     0                      47.0000000    1.15662  97.5%     -    0s
H    0     0                      46.0000000    1.15662  97.5%     -    0s
     0     2    1.17396    0   58   46.00000    1.17396  97.4%     -    0s
*   36    36              21      44.0000000    4.69231  89.3%  27.8    0s
*   39    33              20      43.0000000    4.69231  89.1%  25.8    0s
H   81    59                      41.0000000    7.18590  82.5%  28.1    0s
*  211   157              20      40.0000000   10.09707  74.8%  30.0    0s
* 1405   302              24      39.0000000   19.14286  50.9%  25.3    1s
* 1855   337              23      38.0000000   21.00000  44.7%  24.7    1s
* 4043   336              22      37.0000000   27.80000  24.9%  22.7    3s

Explored 5646 nodes (123381 simplex iterations) in 4.11 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%