Gurobi 5.0.1 (linux64) logging started Wed Apr 24 07:45:01 2013 Optimize a model with 1045 rows, 90345 columns and 180595 nonzeros Presolve time: 0.15s Presolved: 1045 rows, 90345 columns, 180595 nonzeros Variable types: 90250 continuous, 95 integer (95 binary) Root relaxation: objective 1.270024e+05, 3691 iterations, 0.15 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 127002.388 0 10 - 127002.388 - - 0s H 0 0 138306.00000 127002.388 8.17% - 0s H 0 0 135814.00000 127002.388 6.49% - 0s H 0 0 129361.00000 127002.388 1.82% - 0s 0 0 127441.413 0 7 129361.000 127441.413 1.48% - 1s 0 0 127454.053 0 5 129361.000 127454.053 1.47% - 1s 0 0 127454.289 0 4 129361.000 127454.289 1.47% - 1s 0 0 127454.289 0 4 129361.000 127454.289 1.47% - 1s 0 0 127454.289 0 4 129361.000 127454.289 1.47% - 1s 0 0 127454.289 0 4 129361.000 127454.289 1.47% - 1s H 0 0 129212.00000 127454.289 1.36% - 2s 0 2 127454.372 0 4 129212.000 127454.372 1.36% - 2s H 4 4 128780.00000 127510.312 0.99% 60.2 2s H 12 11 128278.00000 127517.952 0.59% 56.0 3s * 20 15 18 128006.00000 127517.952 0.38% 54.2 3s H 27 8 127675.00000 127536.949 0.11% 53.3 3s * 29 8 10 127630.00000 127536.949 0.07% 55.6 4s H 36 7 127602.96591 127550.853 0.04% 55.2 4s H 37 7 127590.87895 127550.853 0.03% 56.0 4s * 39 8 11 127588.00000 127550.853 0.03% 53.5 4s Cutting planes: Implied bound: 154 Flow cover: 4 Explored 47 nodes (6697 simplex iterations) in 4.35 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.275880000000e+05, best bound 1.275807570093e+05, gap 0.0057%