Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:01:35 2013

Optimize a model with 108 rows, 81 columns and 288 nonzeros
Presolve removed 36 rows and 36 columns
Presolve time: 0.00s
Presolved: 72 rows, 45 columns, 216 nonzeros
Variable types: 9 continuous, 36 integer (36 binary)
Found heuristic solution: objective 3168.0000000

Root relaxation: objective 3.150000e+02, 35 iterations, 0.00 seconds

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

     0     0  315.00000    0   28 3168.00000  315.00000  90.1%     -    0s
H    0     0                    2796.0000000  315.00000  88.7%     -    0s
     0     0  599.63164    0   25 2796.00000  599.63164  78.6%     -    0s
     0     0  600.17340    0   23 2796.00000  600.17340  78.5%     -    0s
     0     0  601.27086    0   25 2796.00000  601.27086  78.5%     -    0s
     0     0  601.27086    0   24 2796.00000  601.27086  78.5%     -    0s
H    0     0                    2203.0000000  601.27086  72.7%     -    0s
     0     2  602.16143    0   24 2203.00000  602.16143  72.7%     -    0s
H   40    30                    2171.0000000  699.00000  67.8%   6.5    0s
H  162   115                    2149.0000000  734.71174  65.8%   5.3    0s
*  198   146              15    2138.0000000  734.71174  65.6%   5.2    0s
*  200   143              15    2126.0000000  734.71174  65.4%   5.1    0s
*  275   187              13    2057.0000000  776.51429  62.3%   5.0    0s
* 1264   394              28    2055.0000000  960.27660  53.3%   4.1    0s
* 1634   405              26    2050.0000000  960.27660  53.2%   3.7    0s

Cutting planes:
  Gomory: 8
  Implied bound: 2
  MIR: 16

Explored 24672 nodes (43586 simplex iterations) in 1.04 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.050000000000e+03, best bound 2.050000000000e+03, gap 0.0%