Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:03:37 2012 Optimize a model with 381 rows, 390 columns and 1340 nonzeros Presolve removed 0 rows and 32 columns Presolve time: 0.00s Presolved: 381 rows, 358 columns, 1308 nonzeros Variable types: 0 continuous, 358 integer (357 binary) Found heuristic solution: objective 62.0000000 Root relaxation: objective 0.000000e+00, 255 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 0 148 62.00000 0.00000 100% - 0s H 0 0 40.0000000 0.00000 100% - 0s 0 0 0.13360 0 150 40.00000 0.13360 100% - 0s H 0 0 29.0000000 0.13360 100% - 0s 0 0 0.75219 0 157 29.00000 0.75219 97.4% - 0s H 0 0 21.0000000 0.75219 96.4% - 0s 0 0 0.75219 0 160 21.00000 0.75219 96.4% - 0s 0 0 0.75219 0 159 21.00000 0.75219 96.4% - 0s 0 2 0.75406 0 159 21.00000 0.75406 96.4% - 0s H 27 27 20.0000000 1.19241 94.0% 34.4 0s H 48 44 11.0000000 1.19241 89.2% 22.8 0s H 81 44 10.0000000 1.19531 88.0% 20.8 0s * 252 42 19 9.0000000 4.89130 45.7% 23.3 0s Cutting planes: Gomory: 4 Zero half: 1 Explored 346 nodes (8966 simplex iterations) in 0.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%