Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:47:04 2013 Optimize a model with 1160 rows, 3030 columns and 9050 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.17s Presolved: 1150 rows, 3020 columns, 8040 nonzeros Variable types: 2020 continuous, 1000 integer (1000 binary) Root relaxation: objective 2.207062e+04, 164 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 22070.6191 0 2 - 22070.6191 - - 0s 0 0 22108.8624 0 2 - 22108.8624 - - 0s 0 0 22114.5047 0 2 - 22114.5047 - - 0s 0 0 22114.5047 0 2 - 22114.5047 - - 0s 0 0 22127.0719 0 2 - 22127.0719 - - 0s 0 0 22127.0719 0 2 - 22127.0719 - - 0s H 0 0 23129.276601 22127.0719 4.33% - 0s 0 2 22127.0719 0 2 23129.2766 22127.0719 4.33% - 0s * 16 4 9 22333.158214 22333.1582 0.0% 7.4 0s Cutting planes: Gomory: 2 Implied bound: 8 Explored 17 nodes (463 simplex iterations) in 0.62 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.233315821446e+04, best bound 2.233315821446e+04, gap 0.0%