Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:54:48 2014 Optimize a model with 6973 rows, 6972 columns and 20750 nonzeros Presolve time: 0.14s Presolved: 6973 rows, 6972 columns, 20750 nonzeros Variable types: 0 continuous, 6972 integer (6972 binary) Found heuristic solution: objective 14.5033811 Root relaxation: objective 9.052993e+00, 1026 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 9.0529928 9.05299 0.00% - 0s Explored 0 nodes (1026 simplex iterations) in 0.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.052992824806e+00, best bound 9.052992824806e+00, gap 0.0%