Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:21:35 2013 Optimize a model with 1800 rows, 100600 columns and 201700 nonzeros Presolve removed 400 rows and 300 columns Presolve time: 0.73s Presolved: 1400 rows, 100300 columns, 200900 nonzeros Variable types: 100200 continuous, 100 integer (100 binary) Root relaxation: objective 7.672886e+05, 3972 iterations, 1.28 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 767288.564 0 3 - 767288.564 - - 2s H 0 0 807219.05719 767288.564 4.95% - 3s H 0 0 792664.47281 767288.564 3.20% - 3s H 0 0 774393.03342 767288.564 0.92% - 3s 0 2 767295.442 0 3 774393.033 767295.442 0.92% - 5s H 2 2 770295.03356 767560.822 0.35% 38.0 5s H 3 2 768264.46012 767609.591 0.09% 80.7 5s Explored 8 nodes (5046 simplex iterations) in 6.65 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.682644601246e+05, best bound 7.682644601246e+05, gap 0.0000%