Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:04:54 2013 Optimize a model with 140 rows, 3030 columns and 8040 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.00s Presolved: 130 rows, 3020 columns, 6030 nonzeros Variable types: 3020 continuous, 0 integer (0 binary) Root relaxation: objective 1.836170e+04, 112 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 18361.7044 0 1 - 18361.7044 - - 0s 0 2 18361.7044 0 1 - 18361.7044 - - 0s * 32 8 16 18418.364350 18418.1935 0.00% 12.0 0s Explored 33 nodes (496 simplex iterations) in 0.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.841836434988e+04, best bound 1.841819348789e+04, gap 0.0009%