Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:41:46 2013 Optimize a model with 140 rows, 11030 columns and 32040 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.02s Presolved: 130 rows, 11020 columns, 22030 nonzeros Variable types: 11020 continuous, 0 integer (0 binary) Root relaxation: objective 1.791602e+04, 111 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17916.0191 0 3 - 17916.0191 - - 0s 0 2 17916.0191 0 3 - 17916.0191 - - 0s * 38 12 19 17984.236722 17979.7269 0.03% 4.8 0s * 44 4 22 17984.225346 17979.7269 0.03% 4.2 0s Explored 47 nodes (298 simplex iterations) in 0.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.798422534579e+04, best bound 1.798387094781e+04, gap 0.0020%