Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:49:29 2012 Optimize a model with 16271 rows, 20880 columns and 68974 nonzeros Presolve removed 290 rows and 2 columns Presolve time: 0.30s Presolved: 16125 rows, 20878 columns, 88768 nonzeros Variable types: 0 continuous, 20878 integer (20878 binary) Found heuristic solution: objective 144.0000000 Root relaxation: objective 3.000000e+00, 12143 iterations, 1.10 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 14 144.00000 3.00000 97.9% - 4s H 0 0 3.0000000 3.00000 0.0% - 4s Explored 0 nodes (33543 simplex iterations) in 4.87 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%