Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:36 2012 Optimize a model with 153 rows, 127 columns and 507 nonzeros Presolve removed 0 rows and 1 columns Presolve time: 0.00s Presolved: 153 rows, 126 columns, 506 nonzeros Variable types: 0 continuous, 126 integer (125 binary) Found heuristic solution: objective 35.0000000 Root relaxation: objective 0.000000e+00, 88 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 49 35.00000 0.00000 100% - 0s H 0 0 24.0000000 0.00000 100% - 0s H 0 0 17.0000000 0.00000 100% - 0s 0 0 0.53644 0 50 17.00000 0.53644 96.8% - 0s 0 0 1.01146 0 52 17.00000 1.01146 94.1% - 0s 0 0 1.01322 0 53 17.00000 1.01322 94.0% - 0s 0 0 1.01322 0 53 17.00000 1.01322 94.0% - 0s 0 2 1.01322 0 53 17.00000 1.01322 94.0% - 0s * 16 16 12 14.0000000 2.74964 80.4% 27.6 0s * 19 13 10 13.0000000 2.74964 78.8% 24.8 0s * 32 15 9 12.0000000 2.78082 76.8% 22.6 0s * 63 13 9 11.0000000 6.13801 44.2% 19.5 0s Cutting planes: Gomory: 3 Zero half: 5 Explored 106 nodes (2140 simplex iterations) in 0.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0%