Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:27:35 2014 Optimize a model with 993 rows, 992 columns and 2914 nonzeros Presolve time: 0.01s Presolved: 993 rows, 992 columns, 2914 nonzeros Variable types: 0 continuous, 992 integer (992 binary) Found heuristic solution: objective 8.8595488 Root relaxation: objective 4.913055e+00, 285 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 4.9130549 4.91305 0.00% - 0s Explored 0 nodes (285 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.913054892017e+00, best bound 4.913054892017e+00, gap 0.0%