Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:02:41 2013 Optimize a model with 428 rows, 1244 columns and 3282 nonzeros Presolve removed 394 rows and 1147 columns Presolve time: 0.03s Presolved: 34 rows, 97 columns, 194 nonzeros Variable types: 69 continuous, 28 integer (28 binary) Root relaxation: objective 5.420106e+03, 5 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 5420.10604 0 1 - 5420.10604 - - 0s 0 0 5441.56691 0 2 - 5441.56691 - - 0s 0 0 5441.56716 0 2 - 5441.56716 - - 0s 0 0 5441.59607 0 2 - 5441.59607 - - 0s H 0 0 5441.6175271 5441.59607 0.00% - 0s Cutting planes: Cover: 1 Implied bound: 1 Flow cover: 1 Explored 0 nodes (22 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.441617527065e+03, best bound 5.441596066076e+03, gap 0.0004%