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 3.940000e+02, 11 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 394.00000 0 7 - 394.00000 - - 0s 0 0 565.48965 0 6 - 565.48965 - - 0s 0 0 567.71903 0 7 - 567.71903 - - 0s 0 0 567.71903 0 7 - 567.71903 - - 0s H 0 0 900.0000000 567.71903 36.9% - 0s 0 2 576.26105 0 7 900.00000 576.26105 36.0% - 0s * 9 9 6 868.0000000 585.16000 32.6% 3.9 0s Cutting planes: MIR: 13 Explored 42 nodes (136 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.680000000000e+02, best bound 8.680000000000e+02, gap 0.0%