Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:27:09 2014 Optimize a model with 757 rows, 756 columns and 2214 nonzeros Presolve time: 0.01s Presolved: 757 rows, 756 columns, 2214 nonzeros Variable types: 0 continuous, 756 integer (756 binary) Found heuristic solution: objective 6.9462634 Root relaxation: objective 5.117794e+00, 261 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 5.1177942 5.11779 0.00% - 0s Explored 0 nodes (261 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.117794173999e+00, best bound 5.117794173999e+00, gap 0.0%