Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:21:56 2012 Optimize a model with 185 rows, 223 columns and 683 nonzeros Presolve removed 0 rows and 34 columns Presolve time: 0.00s Presolved: 185 rows, 189 columns, 649 nonzeros Variable types: 0 continuous, 189 integer (188 binary) Found heuristic solution: objective 22.0000000 Root relaxation: objective 0.000000e+00, 140 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 74 22.00000 0.00000 100% - 0s H 0 0 21.0000000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s H 0 0 13.0000000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s 0 0 0.00000 0 75 12.00000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s H 0 0 4.0000000 0.00000 100% - 0s 0 0 0.00000 0 74 4.00000 0.00000 100% - 0s H 0 0 3.0000000 0.00000 100% - 0s H 0 0 2.0000000 0.00000 100% - 0s 0 2 0.00000 0 74 2.00000 0.00000 100% - 0s * 4 3 4 1.0000000 0.00000 100% 72.5 0s Explored 5 nodes (927 simplex iterations) in 0.07 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%