Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:01:00 2013

Optimize a model with 63 rows, 49 columns and 168 nonzeros
Presolve removed 21 rows and 21 columns
Presolve time: 0.00s
Presolved: 42 rows, 28 columns, 126 nonzeros
Variable types: 7 continuous, 21 integer (21 binary)
Found heuristic solution: objective 1909.0000000

Root relaxation: objective 3.190000e+02, 20 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0  319.00000    0   20 1909.00000  319.00000  83.3%     -    0s
     0     0  557.38612    0   20 1909.00000  557.38612  70.8%     -    0s
     0     0  557.38612    0   20 1909.00000  557.38612  70.8%     -    0s
     0     2  566.77345    0   20 1909.00000  566.77345  70.3%     -    0s
*   17    17              14    1614.0000000  566.77345  64.9%   5.8    0s
*   25    21              18    1607.0000000  566.77345  64.7%   4.4    0s
*   28    17              17    1592.0000000  566.77345  64.4%   4.1    0s
*   43    26              12    1355.0000000  596.01841  56.0%   4.3    0s
*   44    23              12    1337.0000000  596.01841  55.4%   4.2    0s
*  132    53              10    1283.0000000  759.00000  40.8%   4.5    0s

Cutting planes:
  Implied bound: 8
  MIR: 30

Explored 930 nodes (2676 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.283000000000e+03, best bound 1.282958333333e+03, gap 0.0032%