Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:28:18 2014 Optimize a model with 2629 rows, 1333 columns and 6480 nonzeros Presolve removed 36 rows and 0 columns Presolve time: 0.11s Presolved: 2593 rows, 1333 columns, 6444 nonzeros Variable types: 1 continuous, 1332 integer (1332 binary) Found heuristic solution: objective 0.7977418 Found heuristic solution: objective 0.7920342 Found heuristic solution: objective 0.6634646 Root relaxation: objective 1.324958e-02, 1448 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.01325 0 951 0.66346 0.01325 98.0% - 0s H 0 0 0.4935532 0.01325 97.3% - 0s 0 0 0.02333 0 559 0.49355 0.02333 95.3% - 0s 0 0 0.20363 0 258 0.49355 0.20363 58.7% - 0s H 0 0 0.4674095 0.20363 56.4% - 0s 0 0 0.22596 0 301 0.46741 0.22596 51.7% - 0s H 0 0 0.4311785 0.22596 47.6% - 0s 0 0 0.22925 0 283 0.43118 0.22925 46.8% - 0s H 0 0 0.4283024 0.22925 46.5% - 0s H 0 0 0.4276478 0.22925 46.4% - 0s 0 0 0.22925 0 284 0.42765 0.22925 46.4% - 0s H 0 0 0.3841505 0.22925 40.3% - 0s H 0 0 0.3823746 0.22925 40.0% - 0s H 0 0 0.3689510 0.22925 37.9% - 0s 0 0 0.28422 0 79 0.36895 0.28422 23.0% - 0s H 0 0 0.3518719 0.28422 19.2% - 0s 0 1 0.28422 0 79 0.35187 0.28422 19.2% - 0s * 3 2 10 0.3120112 0.31201 0.00% 240 1s Explored 3 nodes (9443 simplex iterations) in 1.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.120111580098e-01, best bound 3.120111580098e-01, gap 0.0%