Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:58:29 2013 Optimize a model with 15678 rows, 15288 columns and 60918 nonzeros Presolve removed 39 rows and 0 columns Presolve time: 0.07s Presolved: 15639 rows, 15288 columns, 60879 nonzeros Variable types: 15249 continuous, 39 integer (39 binary) Root relaxation: objective 3.523724e+04, 1966 iterations, 0.31 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 35237.2351 0 30 - 35237.2351 - - 0s H 0 0 42444.000000 35237.2351 17.0% - 0s 0 0 39232.7379 0 5 42444.0000 39232.7379 7.57% - 1s H 0 0 40382.123202 39232.7379 2.85% - 1s H 0 0 39772.000000 39232.7379 1.36% - 1s 0 0 39440.6178 0 4 39772.0000 39440.6178 0.83% - 1s 0 0 39441.1167 0 3 39772.0000 39441.1167 0.83% - 1s H 0 0 39660.000000 39441.1167 0.55% - 1s 0 2 39441.4953 0 3 39660.0000 39441.4953 0.55% - 1s H 3 3 39657.647059 39508.6457 0.38% 52.0 1s H 4 4 39573.000000 39510.5267 0.16% 41.5 1s * 5 2 5 39517.000000 39510.7320 0.02% 37.2 1s Cutting planes: Implied bound: 28 Explored 8 nodes (3343 simplex iterations) in 1.62 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.951700000000e+04, best bound 3.951700000000e+04, gap 0.0%