Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:19:46 2012 Optimize a model with 489 rows, 457 columns and 1677 nonzeros Presolve removed 0 rows and 15 columns Presolve time: 0.00s Presolved: 489 rows, 442 columns, 1662 nonzeros Variable types: 0 continuous, 442 integer (441 binary) Found heuristic solution: objective 98.0000000 Root relaxation: objective 0.000000e+00, 277 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 0 190 98.00000 0.00000 100% - 0s H 0 0 70.0000000 0.00000 100% - 0s H 0 0 67.0000000 0.00000 100% - 0s H 0 0 62.0000000 0.00000 100% - 0s 0 0 0.42301 0 191 62.00000 0.42301 99.3% - 0s H 0 0 54.0000000 0.42301 99.2% - 0s 0 0 1.00000 0 198 54.00000 1.00000 98.1% - 0s 0 0 1.00000 0 198 54.00000 1.00000 98.1% - 0s 0 0 1.00000 0 192 54.00000 1.00000 98.1% - 0s H 0 0 43.0000000 1.00000 97.7% - 0s H 0 0 39.0000000 1.00000 97.4% - 0s H 0 0 38.0000000 1.00000 97.4% - 0s 0 2 1.00000 0 192 38.00000 1.00000 97.4% - 0s H 27 27 22.0000000 1.37453 93.8% 55.0 0s * 74 50 46 19.0000000 1.37453 92.8% 27.1 0s H 164 66 16.0000000 1.86288 88.4% 24.0 0s * 1002 134 25 15.0000000 8.70707 42.0% 29.7 1s * 1148 48 21 14.0000000 10.23810 26.9% 30.6 1s Explored 1229 nodes (38629 simplex iterations) in 1.76 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%