Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:00:41 2013 Optimize a model with 18 rows, 16 columns and 48 nonzeros Presolve removed 6 rows and 6 columns Presolve time: 0.00s Presolved: 12 rows, 10 columns, 36 nonzeros Variable types: 4 continuous, 6 integer (6 binary) Root relaxation: objective 7.100000e+01, 6 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 71.00000 0 4 - 71.00000 - - 0s 0 0 106.93804 0 2 - 106.93804 - - 0s 0 0 109.11979 0 4 - 109.11979 - - 0s 0 0 109.11979 0 4 - 109.11979 - - 0s H 0 0 150.0000000 109.11979 27.3% - 0s 0 2 130.73077 0 3 150.00000 130.73077 12.8% - 0s * 3 1 3 147.0000000 147.00000 0.0% 3.7 0s Cutting planes: MIR: 8 Explored 4 nodes (33 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.470000000000e+02, best bound 1.470000000000e+02, gap 0.0%