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 1.120000e+02, 6 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 112.00000 0 6 - 112.00000 - - 0s H 0 0 454.0000000 112.00000 75.3% - 0s H 0 0 421.0000000 112.00000 73.4% - 0s H 0 0 365.0000000 112.00000 69.3% - 0s 0 0 212.61726 0 3 365.00000 212.61726 41.7% - 0s 0 0 218.74889 0 6 365.00000 218.74889 40.1% - 0s 0 0 218.74889 0 6 365.00000 218.74889 40.1% - 0s 0 0 218.74889 0 6 365.00000 218.74889 40.1% - 0s 0 2 227.77174 0 6 365.00000 227.77174 37.6% - 0s * 6 3 5 363.0000000 228.77174 37.0% 4.0 0s * 12 3 3 342.0000000 256.39600 25.0% 3.7 0s Cutting planes: MIR: 15 Explored 22 nodes (88 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.420000000000e+02, best bound 3.420000000000e+02, gap 0.0%