Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:44:03 2014 Optimize a model with 5113 rows, 5112 columns and 15194 nonzeros Presolve time: 0.12s Presolved: 5113 rows, 5112 columns, 15194 nonzeros Variable types: 0 continuous, 5112 integer (5112 binary) Found heuristic solution: objective 14.0801646 Root relaxation: objective 7.722117e+00, 786 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 7.7221174 7.72212 0.00% - 0s Explored 0 nodes (786 simplex iterations) in 0.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.722117423522e+00, best bound 7.722117423522e+00, gap 0.0%