Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:00:52 2013 Optimize a model with 45 rows, 36 columns and 120 nonzeros Presolve removed 15 rows and 15 columns Presolve time: 0.00s Presolved: 30 rows, 21 columns, 90 nonzeros Variable types: 6 continuous, 15 integer (15 binary) Root relaxation: objective 2.900000e+02, 13 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 290.00000 0 12 - 290.00000 - - 0s 0 0 511.58667 0 10 - 511.58667 - - 0s 0 0 520.45751 0 13 - 520.45751 - - 0s 0 0 521.08044 0 12 - 521.08044 - - 0s 0 0 521.08044 0 12 - 521.08044 - - 0s H 0 0 1271.0000000 521.08044 59.0% - 0s 0 2 529.01391 0 12 1271.00000 529.01391 58.4% - 0s * 14 14 9 1096.0000000 529.01391 51.7% 4.0 0s Cutting planes: Implied bound: 1 MIR: 37 Explored 348 nodes (1015 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.096000000000e+03, best bound 1.096000000000e+03, gap 0.0%