Gurobi 5.0.1 (linux64) logging started Fri Nov 16 01:06:31 2012 Optimize a model with 1188 rows, 342 columns and 3834 nonzeros Presolve removed 630 rows and 0 columns Presolve time: 0.01s Presolved: 558 rows, 342 columns, 2664 nonzeros Variable types: 0 continuous, 342 integer (342 binary) Found heuristic solution: objective 12.0000000 Root relaxation: objective 4.000000e+00, 806 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 4.00000 0 39 12.00000 4.00000 66.7% - 0s H 0 0 5.0000000 4.00000 20.0% - 0s 0 0 4.00000 0 72 5.00000 4.00000 20.0% - 0s 0 0 4.00000 0 39 5.00000 4.00000 20.0% - 0s 0 0 4.00000 0 39 5.00000 4.00000 20.0% - 0s 0 0 4.00000 0 54 5.00000 4.00000 20.0% - 0s 0 0 4.00000 0 68 5.00000 4.00000 20.0% - 0s 0 0 4.00000 0 56 5.00000 4.00000 20.0% - 0s 0 0 4.00000 0 56 5.00000 4.00000 20.0% - 0s 0 0 4.00000 0 56 5.00000 4.00000 20.0% - 0s 0 0 4.00000 0 55 5.00000 4.00000 20.0% - 0s 0 0 4.00000 0 42 5.00000 4.00000 20.0% - 0s 0 0 4.00000 0 42 5.00000 4.00000 20.0% - 0s 0 0 4.00000 0 39 5.00000 4.00000 20.0% - 0s 0 0 4.00000 0 55 5.00000 4.00000 20.0% - 0s 0 0 4.00000 0 55 5.00000 4.00000 20.0% - 0s 0 2 4.00000 0 54 5.00000 4.00000 20.0% - 0s Explored 3 nodes (16774 simplex iterations) in 0.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%