Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:21:20 2012 Optimize a model with 197 rows, 226 columns and 716 nonzeros Presolve removed 0 rows and 21 columns Presolve time: 0.00s Presolved: 197 rows, 205 columns, 695 nonzeros Variable types: 0 continuous, 205 integer (204 binary) Found heuristic solution: objective 38.0000000 Root relaxation: objective 0.000000e+00, 150 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 71 38.00000 0.00000 100% - 0s H 0 0 21.0000000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s 0 0 0.00000 0 72 8.00000 0.00000 100% - 0s H 0 0 4.0000000 0.00000 100% - 0s 0 0 0.00000 0 71 4.00000 0.00000 100% - 0s H 0 0 3.0000000 0.00000 100% - 0s 0 2 0.00000 0 71 3.00000 0.00000 100% - 0s * 16 4 15 1.0000000 1.00000 0.0% 15.5 0s Explored 17 nodes (893 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+00, best bound 1.000000000000e+00, gap 0.0%