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 * 29 29 22 97166.000000 96067.2500 1.13% 7.8 1s * 30 26 22 97068.000000 96067.2500 1.03% 7.5 1s * 53 32 14 96883.000000 96070.2500 0.84% 6.5 1s * 55 28 12 96870.000000 96070.2500 0.83% 6.3 1s H 86 31 96781.000000 96151.9286 0.65% 7.5 1s H 199 30 96772.000000 96464.4667 0.32% 7.3 3s Cutting planes: User: 50 Zero half: 64 Explored 346 nodes (2540 simplex iterations) in 4.94 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.677200000000e+04, best bound 9.676700000000e+04, gap 0.0052% Gurobi 5.0.1 (linux64) logging started Sun Nov 25 02:44:44 2012