Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:26:40 2014 Optimize a model with 742 rows, 381 columns and 1805 nonzeros Found heuristic solution: objective 0.615152 Presolve removed 19 rows and 0 columns Presolve time: 0.01s Presolved: 723 rows, 381 columns, 1786 nonzeros Variable types: 1 continuous, 380 integer (380 binary) Total elapsed time = 0.03s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.29863 0 88 0.61515 0.29863 51.5% - 0s H 0 0 0.5592337 0.29863 46.6% - 0s H 0 0 0.4866155 0.29863 38.6% - 0s 0 0 0.44836 0 2 0.48662 0.44836 7.86% - 0s 0 0 0.44836 0 2 0.48662 0.44836 7.86% - 0s H 0 0 0.4846784 0.44836 7.49% - 0s H 0 0 0.4712548 0.44836 4.86% - 0s 0 0 infeasible 0 0.47125 0.47125 0.00% - 0s Explored 1 nodes (1019 simplex iterations) in 0.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.712547855773e-01, best bound 4.712547855773e-01, gap 0.0%