Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:02:37 2013 Optimize a model with 30 rows, 221 columns and 2048 nonzeros Presolve removed 12 rows and 12 columns Presolve time: 0.00s Presolved: 18 rows, 209 columns, 1824 nonzeros Variable types: 201 continuous, 8 integer (8 binary) Root relaxation: objective 2.970145e+03, 14 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2970.14453 0 7 - 2970.14453 - - 0s 0 0 2970.26364 0 8 - 2970.26364 - - 0s 0 0 2970.26423 0 8 - 2970.26423 - - 0s 0 0 2970.31158 0 5 - 2970.31158 - - 0s 0 0 2970.31158 0 5 - 2970.31158 - - 0s H 0 0 2970.4553101 2970.31158 0.00% - 0s Cutting planes: Cover: 1 Implied bound: 3 Explored 0 nodes (29 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.970455310116e+03, best bound 2.970311581741e+03, gap 0.0048%