Gurobi 5.0.1 (linux64) logging started Fri Nov 16 16:26:58 2012 Optimize a model with 12160 rows, 5852 columns and 42028 nonzeros Presolve removed 1976 rows and 0 columns Presolve time: 0.26s Presolved: 10184 rows, 5852 columns, 37088 nonzeros Variable types: 0 continuous, 5852 integer (5852 binary) Found heuristic solution: objective 38.0000000 Root relaxation: objective 3.000000e+00, 9564 iterations, 1.59 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3.0000000 3.00000 0.0% - 4s Explored 0 nodes (25616 simplex iterations) in 4.29 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%