Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:26:11 2013 Optimize a model with 32 rows, 1045 columns and 12039 nonzeros Presolve removed 12 rows and 36 columns Presolve time: 0.03s Presolved: 20 rows, 1009 columns, 11016 nonzeros Variable types: 1000 continuous, 9 integer (9 binary) Root relaxation: objective 2.970424e+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 2970.42405 0 3 - 2970.42405 - - 0s 0 0 2970.42564 0 3 - 2970.42564 - - 0s 0 0 2970.43532 0 4 - 2970.43532 - - 0s 0 0 2970.45505 0 3 - 2970.45505 - - 0s 0 0 2970.45505 0 3 - 2970.45505 - - 0s H 0 0 2970.4554798 2970.45505 0.00% - 0s Cutting planes: Implied bound: 1 Flow cover: 1 Explored 0 nodes (33 simplex iterations) in 0.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.970455479823e+03, best bound 2.970455045703e+03, gap 0.0000%