Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:13:47 2012 Optimize a model with 193 rows, 156 columns and 636 nonzeros Presolve removed 0 rows and 1 columns Presolve time: 0.00s Presolved: 193 rows, 155 columns, 635 nonzeros Variable types: 0 continuous, 155 integer (154 binary) Found heuristic solution: objective 38.0000000 Root relaxation: objective 0.000000e+00, 107 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 58 38.00000 0.00000 100% - 0s H 0 0 31.0000000 0.00000 100% - 0s H 0 0 29.0000000 0.00000 100% - 0s 0 0 0.45083 0 60 29.00000 0.45083 98.4% - 0s H 0 0 25.0000000 0.45083 98.2% - 0s 0 0 1.02876 0 61 25.00000 1.02876 95.9% - 0s 0 0 1.04552 0 60 25.00000 1.04552 95.8% - 0s H 0 0 22.0000000 1.04552 95.2% - 0s 0 2 1.06558 0 60 22.00000 1.06558 95.2% - 0s * 36 24 24 16.0000000 4.39204 72.5% 18.5 0s * 95 37 13 15.0000000 5.27456 64.8% 15.2 0s * 300 27 8 13.0000000 9.54545 26.6% 13.3 0s Cutting planes: Gomory: 2 Mod-K: 1 Explored 339 nodes (4928 simplex iterations) in 0.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%