Gurobi 5.0.1 (linux64) logging started Mon Feb 4 18:54:20 2013 Optimize a model with 18472 rows, 2304 columns and 56448 nonzeros Presolve removed 3638 rows and 1214 columns Presolve time: 0.14s Presolved: 14834 rows, 1090 columns, 45534 nonzeros Variable types: 23 continuous, 1067 integer (1067 binary) Found heuristic solution: objective 40525.000000 Root relaxation: objective 2.952787e+04, 7254 iterations, 0.35 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 29527.8667 0 7 40525.0000 29527.8667 27.1% - 0s H 0 0 29543.000000 29527.8667 0.05% - 0s H 0 0 29536.000000 29527.8667 0.03% - 0s 0 0 29527.8667 0 14 29536.0000 29527.8667 0.03% - 0s 0 0 29527.8667 0 9 29536.0000 29527.8667 0.03% - 0s 0 0 29527.8667 0 8 29536.0000 29527.8667 0.03% - 0s 0 0 29527.9037 0 18 29536.0000 29527.9037 0.03% - 0s 0 0 29527.9574 0 31 29536.0000 29527.9574 0.03% - 0s 0 0 29527.9846 0 29 29536.0000 29527.9846 0.03% - 0s 0 0 29528.0628 0 21 29536.0000 29528.0628 0.03% - 0s 0 0 29528.0922 0 28 29536.0000 29528.0922 0.03% - 0s 0 0 29528.1763 0 31 29536.0000 29528.1763 0.03% - 0s 0 0 29528.2345 0 36 29536.0000 29528.2345 0.03% - 0s 0 0 29528.2935 0 37 29536.0000 29528.2935 0.03% - 0s H 0 0 29534.000000 29528.2935 0.02% - 0s 0 0 29528.3043 0 40 29534.0000 29528.3043 0.02% - 0s 0 2 29528.3643 0 40 29534.0000 29528.3643 0.02% - 0s * 203 65 42 29532.000000 29529.0870 0.01% 13.3 1s Cutting planes: Gomory: 4 MIR: 27 Zero half: 5 Mod-K: 1 Explored 204 nodes (10699 simplex iterations) in 1.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.953200000000e+04, best bound 2.953000000000e+04, gap 0.0068%