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 2.610000e+02, 4 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 261.00000 0 4 - 261.00000 - - 0s H 0 0 709.0000000 261.00000 63.2% - 0s H 0 0 437.0000000 261.00000 40.3% - 0s 0 0 349.76036 0 4 437.00000 349.76036 20.0% - 0s 0 0 350.16768 0 3 437.00000 350.16768 19.9% - 0s 0 0 356.11092 0 4 437.00000 356.11092 18.5% - 0s 0 0 356.32743 0 4 437.00000 356.32743 18.5% - 0s 0 0 356.32743 0 4 437.00000 356.32743 18.5% - 0s 0 2 356.63636 0 4 437.00000 356.63636 18.4% - 0s Cutting planes: MIR: 8 Explored 7 nodes (32 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.369999999999e+02, best bound 4.369999999999e+02, gap 0.0%