Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:19:21 2012 Optimize a model with 199 rows, 161 columns and 656 nonzeros Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 199 rows, 159 columns, 654 nonzeros Variable types: 0 continuous, 159 integer (158 binary) Found heuristic solution: objective 47.0000000 Root relaxation: objective 0.000000e+00, 101 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 59 47.00000 0.00000 100% - 0s H 0 0 29.0000000 0.00000 100% - 0s 0 0 0.62148 0 63 29.00000 0.62148 97.9% - 0s H 0 0 24.0000000 0.62148 97.4% - 0s 0 0 1.16467 0 64 24.00000 1.16467 95.1% - 0s 0 0 1.41111 0 63 24.00000 1.41111 94.1% - 0s 0 0 1.43730 0 69 24.00000 1.43730 94.0% - 0s 0 0 1.43730 0 69 24.00000 1.43730 94.0% - 0s 0 2 1.51327 0 69 24.00000 1.51327 93.7% - 0s * 21 21 16 19.0000000 3.22367 83.0% 28.4 0s * 40 29 14 18.0000000 3.23435 82.0% 23.6 0s * 84 51 16 17.0000000 4.61573 72.8% 22.4 0s * 124 40 9 15.0000000 6.21465 58.6% 22.4 0s Cutting planes: Gomory: 5 Mod-K: 1 Explored 387 nodes (7213 simplex iterations) in 0.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.500000000000e+01, best bound 1.500000000000e+01, gap 0.0%