Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:39:04 2013 Optimize a model with 1400 rows, 102300 columns and 206400 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 0.15s Presolved: 1300 rows, 102200 columns, 204300 nonzeros Variable types: 102200 continuous, 0 integer (0 binary) Root relaxation: objective 9.188392e+05, 7392 iterations, 0.50 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 918839.221 0 4 - 918839.221 - - 0s H 0 0 1101309.5307 918839.221 16.6% - 1s 0 2 918839.221 0 4 1101309.53 918839.221 16.6% - 2s 23 25 927505.037 12 2 1101309.53 919269.234 16.5% 188 5s * 27 23 14 924008.65682 919277.041 0.51% 182 5s * 84 14 42 919371.65559 919284.268 0.01% 70.8 7s Explored 85 nodes (13341 simplex iterations) in 7.24 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.193716555880e+05, best bound 9.192842681540e+05, gap 0.0095%