Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:57:54 2012 Optimize a model with 355 rows, 232 columns and 1117 nonzeros Presolve time: 0.00s Presolved: 355 rows, 232 columns, 1117 nonzeros Variable types: 0 continuous, 232 integer (232 binary) Found heuristic solution: objective 88.0000000 Root relaxation: objective 0.000000e+00, 80 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 55 88.00000 0.00000 100% - 0s H 0 0 75.0000000 0.00000 100% - 0s 0 0 0.89091 0 57 75.00000 0.89091 98.8% - 0s H 0 0 74.0000000 0.89091 98.8% - 0s 0 0 0.90682 0 57 74.00000 0.90682 98.8% - 0s 0 0 1.05422 0 58 74.00000 1.05422 98.6% - 0s 0 0 1.06591 0 57 74.00000 1.06591 98.6% - 0s 0 0 1.08808 0 60 74.00000 1.08808 98.5% - 0s 0 0 1.09773 0 57 74.00000 1.09773 98.5% - 0s 0 0 1.09773 0 57 74.00000 1.09773 98.5% - 0s 0 0 1.09773 0 57 74.00000 1.09773 98.5% - 0s H 0 0 60.0000000 1.09773 98.2% - 0s H 0 0 59.0000000 1.09773 98.1% - 0s 0 2 1.10185 0 57 59.00000 1.10185 98.1% - 0s * 35 31 19 47.0000000 4.06704 91.3% 28.4 0s H 274 192 45.0000000 11.71053 74.0% 28.6 0s H 2869 407 44.0000000 30.53846 30.6% 24.8 2s Explored 5973 nodes (133188 simplex iterations) in 4.82 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.400000000000e+01, best bound 4.400000000000e+01, gap 0.0%