Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:36:54 2013 Optimize a model with 1400 rows, 102300 columns and 206400 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 0.34s Presolved: 1300 rows, 102200 columns, 204300 nonzeros Variable types: 102200 continuous, 0 integer (0 binary) Root relaxation: objective 9.481640e+05, 6964 iterations, 0.86 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 948163.962 0 4 - 948163.962 - - 1s H 0 0 983075.33122 948163.962 3.55% - 2s 0 2 948163.962 0 4 983075.331 948163.962 3.55% - 3s 8 10 951652.559 4 2 983075.331 948601.110 3.51% 274 5s 26 28 958221.948 13 2 983075.331 948950.568 3.47% 218 10s * 49 17 25 950276.23626 948950.568 0.14% 153 13s 61 11 cutoff 4 950276.236 948969.049 0.14% 157 15s Explored 211 nodes (18185 simplex iterations) in 19.77 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.502762362556e+05, best bound 9.502059930357e+05, gap 0.0074%