Gurobi 5.0.1 (linux64) logging started Wed Apr 24 12:48:29 2013 Optimize a model with 2310 rows, 441210 columns and 882210 nonzeros Presolve time: 1.58s Presolved: 2310 rows, 441210 columns, 882210 nonzeros Variable types: 441000 continuous, 210 integer (210 binary) Root relaxation: objective 3.860463e+05, 13752 iterations, 2.19 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 386046.337 0 7 - 386046.337 - - 4s H 0 0 418262.00000 386046.337 7.70% - 5s H 0 0 387639.00000 386046.337 0.41% - 5s 0 0 386083.276 0 5 387639.000 386083.276 0.40% - 6s 0 0 386083.276 0 7 387639.000 386083.276 0.40% - 9s 0 0 386083.280 0 4 387639.000 386083.280 0.40% - 9s 0 0 386090.486 0 3 387639.000 386090.486 0.40% - 10s 0 0 386090.887 0 2 387639.000 386090.887 0.40% - 10s 0 0 386090.887 0 2 387639.000 386090.887 0.40% - 10s 0 0 386090.887 0 2 387639.000 386090.887 0.40% - 11s 0 0 386090.887 0 2 387639.000 386090.887 0.40% - 11s 0 0 386090.887 0 2 387639.000 386090.887 0.40% - 12s 0 2 386090.897 0 2 387639.000 386090.897 0.40% - 13s 5 7 386326.315 5 3 387639.000 386142.398 0.39% 78.8 15s H 8 8 387114.00000 386142.398 0.25% 66.0 15s * 13 9 13 386749.00000 386142.398 0.16% 71.2 16s H 21 5 386416.61194 386253.925 0.04% 72.8 17s H 23 6 386393.00000 386253.925 0.04% 69.0 18s * 26 7 13 386369.00000 386253.925 0.03% 62.1 18s Cutting planes: Implied bound: 74 Flow cover: 3 Explored 32 nodes (22459 simplex iterations) in 18.54 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.863690000000e+05, best bound 3.863422253315e+05, gap 0.0069%