Gurobi 5.0.1 (linux64) logging started Fri Jan 18 08:56:45 2013 Optimize a model with 1400 rows, 200300 columns and 500400 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 0.39s Presolved: 1300 rows, 200200 columns, 400300 nonzeros Variable types: 200200 continuous, 0 integer (0 binary) Root relaxation: objective 9.481640e+05, 9593 iterations, 1.13 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 0 2 948163.962 0 4 - 948163.962 - - 4s 2 4 948261.260 1 3 - 948261.260 - 110 5s 32 34 949785.213 16 1 - 948690.534 - 160 10s * 49 15 25 950276.23626 948690.534 0.17% 126 11s 78 6 950056.323 9 1 950276.236 949787.291 0.05% 123 15s Explored 189 nodes (19405 simplex iterations) in 18.16 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%