Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:27:48 2013 Optimize a model with 160 rows, 5425 columns and 60595 nonzeros Presolve removed 5 rows and 125 columns Presolve time: 0.16s Presolved: 155 rows, 5300 columns, 55595 nonzeros Variable types: 5255 continuous, 45 integer (45 binary) Root relaxation: objective 1.174557e+04, 67 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 11745.5748 0 7 - 11745.5748 - - 0s 0 0 11745.6385 0 7 - 11745.6385 - - 0s 0 0 11773.8244 0 11 - 11773.8244 - - 0s 0 0 11779.1576 0 4 - 11779.1576 - - 0s 0 0 11779.1576 0 4 - 11779.1576 - - 0s H 0 0 11925.534756 11779.1576 1.23% - 0s H 0 0 11779.404659 11779.1576 0.00% - 0s Cutting planes: Flow cover: 1 Explored 0 nodes (327 simplex iterations) in 0.95 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.177940465921e+04, best bound 1.177915762639e+04, gap 0.0021%