Gurobi 5.0.1 (linux64) logging started Fri Jan 18 03:02:50 2013 Optimize a model with 5700 rows, 40100 columns and 90050 nonzeros Presolve removed 100 rows and 150 columns Presolve time: 0.33s Presolved: 5600 rows, 39950 columns, 79900 nonzeros Variable types: 35000 continuous, 4950 integer (4950 binary) Root relaxation: objective 1.650739e+05, 3785 iterations, 0.26 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 165073.856 0 2 - 165073.856 - - 0s 0 0 165102.042 0 4 - 165102.042 - - 1s 0 0 165215.944 0 3 - 165215.944 - - 2s 0 0 165225.543 0 3 - 165225.543 - - 2s 0 0 165294.609 0 3 - 165294.609 - - 2s 0 0 165302.613 0 3 - 165302.613 - - 2s 0 0 165348.220 0 3 - 165348.220 - - 2s 0 0 165350.952 0 3 - 165350.952 - - 2s 0 0 165361.486 0 2 - 165361.486 - - 3s 0 0 165369.463 0 2 - 165369.463 - - 3s 0 0 165374.000 0 2 - 165374.000 - - 3s 0 0 165375.056 0 2 - 165375.056 - - 3s 0 0 165376.120 0 2 - 165376.120 - - 3s 0 0 165377.312 0 2 - 165377.312 - - 3s 0 0 165377.429 0 2 - 165377.429 - - 3s 0 0 165377.536 0 2 - 165377.536 - - 3s 0 0 165377.536 0 2 - 165377.536 - - 4s 0 2 165378.500 0 2 - 165378.500 - - 5s * 42 24 36 165652.91614 165484.701 0.10% 9.6 6s H 98 43 165650.92596 165512.669 0.08% 7.4 7s H 152 44 165639.95841 165530.328 0.07% 6.4 8s * 221 55 26 165635.47456 165558.460 0.05% 6.3 8s * 243 53 27 165633.69583 165567.623 0.04% 6.1 8s * 277 38 23 165622.02686 165583.628 0.02% 5.9 9s 339 26 165597.808 25 1 165622.027 165597.808 0.01% 6.2 10s Cutting planes: Gomory: 2 Flow cover: 19 Explored 354 nodes (8633 simplex iterations) in 10.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.656220268557e+05, best bound 1.656059350639e+05, gap 0.0097%