Gurobi 5.0.1 (linux64) logging started Wed Apr 24 08:09:02 2013 Optimize a model with 1056 rows, 92256 columns and 184416 nonzeros Presolve time: 0.16s Presolved: 1056 rows, 92256 columns, 184416 nonzeros Variable types: 92160 continuous, 96 integer (96 binary) Root relaxation: objective 1.391712e+05, 3351 iterations, 0.13 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 139171.188 0 8 - 139171.188 - - 0s H 0 0 154885.00000 139171.188 10.1% - 0s H 0 0 139944.00000 139171.188 0.55% - 0s 0 0 139250.297 0 2 139944.000 139250.297 0.50% - 0s 0 0 139250.297 0 8 139944.000 139250.297 0.50% - 1s 0 0 139250.297 0 2 139944.000 139250.297 0.50% - 1s 0 0 139266.647 0 2 139944.000 139266.647 0.48% - 1s 0 0 139269.658 0 3 139944.000 139269.658 0.48% - 1s 0 0 139270.405 0 4 139944.000 139270.405 0.48% - 1s 0 0 139271.433 0 3 139944.000 139271.433 0.48% - 1s 0 0 139271.708 0 3 139944.000 139271.708 0.48% - 1s 0 0 139271.767 0 3 139944.000 139271.767 0.48% - 2s 0 0 139274.324 0 4 139944.000 139274.324 0.48% - 2s 0 0 139274.926 0 3 139944.000 139274.926 0.48% - 2s 0 0 139275.070 0 3 139944.000 139275.070 0.48% - 2s 0 0 139275.215 0 3 139944.000 139275.215 0.48% - 2s 0 2 139283.543 0 3 139944.000 139283.543 0.47% - 2s H 17 11 139779.00000 139345.053 0.31% 58.0 3s * 19 9 17 139741.00000 139345.053 0.28% 53.2 3s H 27 10 139677.00000 139381.227 0.21% 50.7 3s * 30 11 10 139668.00000 139381.227 0.21% 52.5 4s * 34 8 10 139584.00000 139381.227 0.15% 50.5 4s * 41 6 8 139560.00000 139454.167 0.08% 48.8 4s Cutting planes: Implied bound: 80 Flow cover: 5 Explored 50 nodes (8770 simplex iterations) in 4.32 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.395600000000e+05, best bound 1.395486699346e+05, gap 0.0081%