Optimize a model with 105 rows, 5460 columns and 10920 nonzeros Presolve time: 0.01s Presolved: 105 rows, 5460 columns, 10920 nonzeros Variable types: 0 continuous, 5460 integer (5460 binary) Root relaxation: objective 1.321350e+04, 133 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 13213.5000 0 12 - 13213.5000 - - 0s 0 0 13216.0000 0 6 - 13216.0000 - - 0s 0 0 13230.7500 0 10 - 13230.7500 - - 0s 0 0 13233.5000 0 6 - 13233.5000 - - 0s 0 0 13236.8333 0 12 - 13236.8333 - - 0s 0 0 13241.5000 0 8 - 13241.5000 - - 0s 0 0 13246.2500 0 30 - 13246.2500 - - 0s 0 0 13255.0000 0 16 - 13255.0000 - - 0s 0 0 13257.5000 0 14 - 13257.5000 - - 0s 0 0 13257.8750 0 20 - 13257.8750 - - 0s 0 2 13258.7500 0 20 - 13258.7500 - - 0s * 12 12 7 14644.000000 14024.5000 4.23% 23.2 0s * 15 8 6 14596.000000 14024.5000 3.92% 19.8 0s * 28 16 11 14551.000000 14033.5000 3.56% 14.1 0s * 39 16 7 14515.000000 14294.5000 1.52% 12.4 0s * 45 12 6 14464.000000 14328.0000 0.94% 11.4 0s * 48 5 5 14404.000000 14328.0000 0.53% 11.1 0s * 51 4 6 14379.000000 14340.5000 0.27% 10.6 0s Cutting planes: User: 47 Zero half: 17 Explored 56 nodes (720 simplex iterations) in 0.76 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.437900000000e+04, best bound 1.437900000000e+04, gap 0.0% Gurobi 5.0.1 (linux64) logging started Sun Nov 25 02:43:46 2012