Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:34:44 2012 Optimize a model with 295 rows, 310 columns and 1045 nonzeros Presolve removed 0 rows and 22 columns Presolve time: 0.00s Presolved: 295 rows, 288 columns, 1023 nonzeros Variable types: 0 continuous, 288 integer (287 binary) Found heuristic solution: objective 52.0000000 Root relaxation: objective 0.000000e+00, 187 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 0 116 52.00000 0.00000 100% - 0s H 0 0 28.0000000 0.00000 100% - 0s H 0 0 27.0000000 0.00000 100% - 0s 0 0 0.08966 0 118 27.00000 0.08966 100% - 0s H 0 0 21.0000000 0.08966 100% - 0s 0 0 0.72279 0 130 21.00000 0.72279 96.6% - 0s H 0 0 18.0000000 0.72279 96.0% - 0s H 0 0 11.0000000 0.72279 93.4% - 0s 0 0 0.72279 0 130 11.00000 0.72279 93.4% - 0s H 0 0 10.0000000 0.72279 92.8% - 0s 0 2 0.73982 0 127 10.00000 0.73982 92.6% - 0s H 27 25 7.0000000 1.00000 85.7% 32.4 0s H 54 23 6.0000000 1.00000 83.3% 19.5 0s H 63 16 5.0000000 1.00000 80.0% 19.6 0s * 118 22 16 4.0000000 1.00000 75.0% 20.5 0s Cutting planes: Gomory: 4 Explored 169 nodes (4262 simplex iterations) in 0.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%