Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:26:36 2014 Optimize a model with 343 rows, 342 columns and 990 nonzeros Presolve time: 0.00s Presolved: 343 rows, 342 columns, 990 nonzeros Variable types: 0 continuous, 342 integer (342 binary) Found heuristic solution: objective 7.6631737 Root relaxation: objective 4.341243e+00, 146 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 4.3412426 4.34124 0.00% - 0s Explored 0 nodes (146 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.341242591524e+00, best bound 4.341242591524e+00, gap 0.0%