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 2.250000e+02, 7 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 225.00000 0 7 - 225.00000 - - 0s H 0 0 601.0000000 225.00000 62.6% - 0s H 0 0 518.0000000 225.00000 56.6% - 0s 0 0 319.88930 0 3 518.00000 319.88930 38.2% - 0s 0 0 319.88930 0 4 518.00000 319.88930 38.2% - 0s 0 2 328.00000 0 4 518.00000 328.00000 36.7% - 0s * 16 7 4 492.0000000 398.00000 19.1% 3.1 0s * 17 4 4 405.0000000 398.00000 1.73% 2.9 0s Cutting planes: MIR: 16 Explored 21 nodes (76 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.050000000000e+02, best bound 4.050000000000e+02, gap 0.0%