Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:35:54 2012 Optimize a model with 279 rows, 305 columns and 1000 nonzeros Presolve removed 0 rows and 27 columns Presolve time: 0.00s Presolved: 279 rows, 278 columns, 973 nonzeros Variable types: 0 continuous, 278 integer (277 binary) Found heuristic solution: objective 44.0000000 Root relaxation: objective 0.000000e+00, 222 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 0 122 44.00000 0.00000 100% - 0s H 0 0 20.0000000 0.00000 100% - 0s 0 0 0.17633 0 124 20.00000 0.17633 99.1% - 0s H 0 0 16.0000000 0.17633 98.9% - 0s H 0 0 13.0000000 0.17633 98.6% - 0s 0 0 0.73473 0 128 13.00000 0.73473 94.3% - 0s H 0 0 11.0000000 0.73473 93.3% - 0s 0 0 0.73598 0 131 11.00000 0.73598 93.3% - 0s 0 0 0.73598 0 131 11.00000 0.73598 93.3% - 0s H 0 0 8.0000000 0.73598 90.8% - 0s H 0 0 7.0000000 0.73598 89.5% - 0s 0 2 0.74915 0 129 7.00000 0.74915 89.3% - 0s * 11 9 8 2.0000000 1.00000 50.0% 35.7 0s * 15 1 3 1.0000000 1.00000 0.0% 33.5 0s Cutting planes: Gomory: 4 Zero half: 1 Explored 16 nodes (1191 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%