Optimize a model with 136 rows, 9180 columns and 18360 nonzeros Presolve time: 0.02s Presolved: 136 rows, 9180 columns, 18360 nonzeros Variable types: 0 continuous, 9180 integer (9180 binary) Root relaxation: objective 8.920800e+04, 211 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 89208.0000 0 48 - 89208.0000 - - 0s 0 0 89216.0000 0 48 - 89216.0000 - - 0s 0 0 93340.0000 0 48 - 93340.0000 - - 0s 0 0 93764.0000 0 104 - 93764.0000 - - 0s 0 0 95807.0000 0 12 - 95807.0000 - - 0s 0 0 95858.0000 0 24 - 95858.0000 - - 0s 0 2 95882.1818 0 24 - 95882.1818 - - 0s * 24 24 21 97155.000000 96067.2500 1.12% 5.9 0s * 27 23 22 97068.000000 96067.2500 1.03% 5.6 0s * 104 66 16 96998.000000 96076.4286 0.95% 5.2 0s H 136 50 96785.000000 96176.6071 0.63% 5.8 0s H 298 47 96772.000000 96519.1389 0.26% 5.8 1s Cutting planes: Zero half: 61 Explored 442 nodes (2927 simplex iterations) in 1.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.677200000000e+04, best bound 9.676500000000e+04, gap 0.0072% Gurobi 5.0.1 (linux64) logging started Sun Nov 25 02:44:42 2012