Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:00:46 2013 Optimize a model with 30 rows, 25 columns and 80 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.00s Presolved: 20 rows, 15 columns, 60 nonzeros Variable types: 5 continuous, 10 integer (10 binary) Root relaxation: objective 1.810000e+02, 9 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 181.00000 0 3 - 181.00000 - - 0s H 0 0 339.0000000 181.00000 46.6% - 0s H 0 0 283.0000000 181.00000 36.0% - 0s H 0 0 259.0000000 181.00000 30.1% - 0s 0 0 213.47619 0 2 259.00000 213.47619 17.6% - 0s 0 0 222.81250 0 4 259.00000 222.81250 14.0% - 0s 0 0 223.35054 0 4 259.00000 223.35054 13.8% - 0s 0 0 223.35054 0 4 259.00000 223.35054 13.8% - 0s 0 2 224.56522 0 4 259.00000 224.56522 13.3% - 0s * 5 2 4 254.0000000 227.72464 10.3% 2.6 0s Cutting planes: Implied bound: 1 MIR: 7 Explored 11 nodes (54 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.540000000000e+02, best bound 2.540000000000e+02, gap 0.0%