Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:17:06 2013 Optimize a model with 1200 rows, 26600 columns and 54050 nonzeros Presolve removed 100 rows and 150 columns Presolve time: 0.15s Presolved: 1100 rows, 26450 columns, 52900 nonzeros Variable types: 26000 continuous, 450 integer (450 binary) Root relaxation: objective 1.626233e+05, 2158 iterations, 0.07 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 162623.326 0 5 - 162623.326 - - 0s 0 0 162707.997 0 5 - 162707.997 - - 0s 0 0 162726.807 0 5 - 162726.807 - - 0s 0 0 162727.455 0 5 - 162727.455 - - 0s 0 0 162730.138 0 4 - 162730.138 - - 0s 0 0 162730.817 0 4 - 162730.817 - - 0s 0 0 162730.880 0 4 - 162730.880 - - 0s 0 0 162730.989 0 4 - 162730.989 - - 0s 0 0 162734.038 0 4 - 162734.038 - - 0s 0 0 162734.038 0 4 - 162734.038 - - 0s 0 0 162734.508 0 4 - 162734.508 - - 0s 0 0 162736.207 0 4 - 162736.207 - - 0s 0 0 162736.207 0 4 - 162736.207 - - 1s 0 0 162736.667 0 4 - 162736.667 - - 1s 0 0 162736.667 0 4 - 162736.667 - - 1s 0 0 162736.667 0 4 - 162736.667 - - 1s 0 0 162736.667 0 4 - 162736.667 - - 1s 0 0 162736.667 0 4 - 162736.667 - - 1s H 0 0 163703.36360 162736.667 0.59% - 1s 0 2 162736.736 0 4 163703.364 162736.736 0.59% - 1s H 27 12 163067.72076 162861.229 0.13% 10.3 2s H 54 8 162933.76086 162861.229 0.04% 6.1 2s * 68 7 15 162917.03806 162864.079 0.03% 5.3 2s Cutting planes: Flow cover: 21 Explored 105 nodes (3106 simplex iterations) in 2.54 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.629170380581e+05, best bound 1.629007742847e+05, gap 0.0100%