Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:44:37 2014 Optimize a model with 5257 rows, 5256 columns and 15624 nonzeros Presolve time: 0.12s Presolved: 5257 rows, 5256 columns, 15624 nonzeros Variable types: 0 continuous, 5256 integer (5256 binary) Found heuristic solution: objective 11.1639155 Root relaxation: objective 8.145762e+00, 808 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 8.1457625 8.14576 0.00% - 0s Explored 0 nodes (808 simplex iterations) in 0.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.145762480221e+00, best bound 8.145762480221e+00, gap 0.0%