Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:27:45 2014 Optimize a model with 2081 rows, 1057 columns and 5120 nonzeros Presolve removed 32 rows and 0 columns Presolve time: 0.07s Presolved: 2049 rows, 1057 columns, 5088 nonzeros Variable types: 1 continuous, 1056 integer (1056 binary) Found heuristic solution: objective 0.8819043 Found heuristic solution: objective 0.7985427 Found heuristic solution: objective 0.7494296 Root relaxation: objective 1.216792e-02, 1345 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.01217 0 893 0.74943 0.01217 98.4% - 0s H 0 0 0.5600388 0.01217 97.8% - 0s 0 0 0.01712 0 590 0.56004 0.01712 96.9% - 0s 0 0 0.19305 0 231 0.56004 0.19305 65.5% - 0s H 0 0 0.5475227 0.19305 64.7% - 0s H 0 0 0.3672678 0.19305 47.4% - 0s 0 0 0.21690 0 169 0.36727 0.21690 40.9% - 0s H 0 0 0.3436205 0.21690 36.9% - 0s H 0 0 0.3365157 0.21690 35.5% - 0s 0 2 0.27290 0 57 0.33652 0.27290 18.9% - 0s * 10 7 7 0.3157830 0.29401 6.89% 80.6 0s Explored 16 nodes (7098 simplex iterations) in 0.52 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.157830490414e-01, best bound 3.157830490414e-01, gap 0.0%