Gurobi 5.6.3 (linux64) logging started Tue Oct 7 21:28:03 2014 Optimize a model with 10507 rows, 10506 columns and 31314 nonzeros Presolve time: 0.19s Presolved: 10507 rows, 10506 columns, 31314 nonzeros Variable types: 0 continuous, 10506 integer (10506 binary) Found heuristic solution: objective 13.6078197 Root relaxation: objective 1.024908e+01, 1160 iterations, 0.06 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 10.2490791 10.24908 0.00% - 0s Explored 0 nodes (1160 simplex iterations) in 0.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.024907909437e+01, best bound 1.024907909437e+01, gap 0.0%