Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:56:51 2013 Optimize a model with 407 rows, 13727 columns and 27417 nonzeros Presolve time: 0.02s Presolved: 407 rows, 13727 columns, 27417 nonzeros Variable types: 13690 continuous, 37 integer (37 binary) Root relaxation: objective 4.117770e+04, 545 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 41177.7014 0 11 - 41177.7014 - - 0s H 0 0 41744.000000 41177.7014 1.36% - 0s 0 0 41560.1581 0 5 41744.0000 41560.1581 0.44% - 0s H 0 0 41681.000000 41560.1581 0.29% - 0s 0 0 41584.0942 0 3 41681.0000 41584.0942 0.23% - 0s 0 0 41585.7186 0 3 41681.0000 41585.7186 0.23% - 0s 0 0 41586.5795 0 3 41681.0000 41586.5795 0.23% - 0s 0 0 41586.5953 0 3 41681.0000 41586.5953 0.23% - 0s H 0 0 41617.000000 41586.5953 0.07% - 0s 0 0 41586.5953 0 8 41617.0000 41586.5953 0.07% - 0s 0 0 41586.5953 0 3 41617.0000 41586.5953 0.07% - 0s 0 0 41588.7030 0 3 41617.0000 41588.7030 0.07% - 0s 0 0 41592.2867 0 2 41617.0000 41592.2867 0.06% - 0s 0 0 41592.8139 0 2 41617.0000 41592.8139 0.06% - 0s 0 0 41593.2867 0 2 41617.0000 41593.2867 0.06% - 0s 0 0 41595.4395 0 2 41617.0000 41595.4395 0.05% - 0s 0 0 41595.9388 0 1 41617.0000 41595.9388 0.05% - 0s 0 0 41603.5408 0 2 41617.0000 41603.5408 0.03% - 0s 0 0 41607.0174 0 3 41617.0000 41607.0174 0.02% - 0s 0 0 cutoff 0 41617.0000 41617.0000 0.0% - 0s Cutting planes: Implied bound: 47 Flow cover: 2 Explored 0 nodes (1339 simplex iterations) in 0.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.161700000000e+04, best bound 4.161700000000e+04, gap 0.0%