Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:45:24 2013 Optimize a model with 1400 rows, 105300 columns and 215400 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 0.38s Presolved: 1300 rows, 105200 columns, 210300 nonzeros Variable types: 105200 continuous, 0 integer (0 binary) Root relaxation: objective 9.053666e+05, 8595 iterations, 1.24 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 905366.638 0 2 - 905366.638 - - 1s H 0 0 933001.06450 905366.638 2.96% - 3s 0 2 905366.638 0 2 933001.064 905366.638 2.96% - 5s 13 15 907496.339 7 1 933001.064 906347.749 2.86% 274 10s 38 40 912127.520 19 1 933001.064 906347.749 2.86% 177 15s * 55 13 28 908018.35356 906347.749 0.18% 146 16s 74 16 906867.837 2 1 908018.354 906867.837 0.13% 134 20s Explored 140 nodes (21495 simplex iterations) in 24.29 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.080183535562e+05, best bound 9.079362137297e+05, gap 0.0090%