Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:38:17 2013 Optimize a model with 1400 rows, 102300 columns and 206400 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 0.16s Presolved: 1300 rows, 102200 columns, 204300 nonzeros Variable types: 102200 continuous, 0 integer (0 binary) Root relaxation: objective 8.951303e+05, 7564 iterations, 0.54 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 895130.293 0 4 - 895130.293 - - 0s H 0 0 904168.72589 895130.293 1.00% - 1s 0 2 895130.293 0 4 904168.726 895130.293 1.00% - 2s 33 21 903710.717 17 3 904168.726 896210.362 0.88% 114 5s * 199 21 100 899927.12820 896210.362 0.41% 27.8 9s * 211 17 106 899906.77460 896210.362 0.41% 26.3 9s * 232 12 116 898316.59790 896210.362 0.23% 24.0 9s 234 14 896634.324 3 1 898316.598 896210.362 0.23% 25.2 10s * 308 8 10 896949.94038 896546.546 0.04% 28.5 13s * 319 4 12 896634.43616 896634.324 0.00% 28.9 13s Explored 320 nodes (16788 simplex iterations) in 13.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.966344361626e+05, best bound 8.966343243635e+05, gap 0.0000%