Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:16:05 2013 Optimize a model with 95367 rows, 6889 columns and 289338 nonzeros Presolve removed 6914 rows and 3496 columns Presolve time: 0.92s Presolved: 88453 rows, 3393 columns, 268076 nonzeros Variable types: 34 continuous, 3359 integer (3359 binary) Found heuristic solution: objective 128915.00000 Root relaxation: objective 9.384442e+04, 28987 iterations, 3.68 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 93844.4242 0 12 128915.000 93844.4242 27.2% - 4s H 0 0 93858.000000 93844.4242 0.01% - 5s H 0 0 93854.000000 93844.4242 0.01% - 5s H 0 0 93853.000000 93844.4242 0.01% - 5s Explored 0 nodes (29036 simplex iterations) in 5.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.385300000000e+04, best bound 9.384500000000e+04, gap 0.0085%