Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:40 2012 Optimize a model with 179 rows, 145 columns and 590 nonzeros Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 179 rows, 143 columns, 588 nonzeros Variable types: 0 continuous, 143 integer (142 binary) Found heuristic solution: objective 42.0000000 Found heuristic solution: objective 40.0000000 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 53 40.00000 0.00000 100% - 0s H 0 0 35.0000000 0.00000 100% - 0s H 0 0 30.0000000 0.00000 100% - 0s 0 0 0.33494 0 55 30.00000 0.33494 98.9% - 0s H 0 0 25.0000000 0.33494 98.7% - 0s 0 0 0.89750 0 58 25.00000 0.89750 96.4% - 0s H 0 0 24.0000000 0.89750 96.3% - 0s 0 0 0.90560 0 59 24.00000 0.90560 96.2% - 0s 0 0 0.90560 0 59 24.00000 0.90560 96.2% - 0s H 0 0 22.0000000 0.90560 95.9% - 0s H 0 0 19.0000000 0.90560 95.2% - 0s H 0 0 18.0000000 0.90560 95.0% - 0s 0 2 0.90604 0 59 18.00000 0.90604 95.0% - 0s * 12 12 8 13.0000000 3.05096 76.5% 29.1 0s * 225 16 11 11.0000000 9.15737 16.8% 16.4 0s Cutting planes: Gomory: 4 Zero half: 2 Mod-K: 1 Explored 244 nodes (4211 simplex iterations) in 0.17 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%