Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:59:17 2014 Optimize a model with 14879 rows, 7483 columns and 36980 nonzeros Presolve removed 86 rows and 0 columns Presolve time: 0.15s Presolved: 14793 rows, 7483 columns, 36894 nonzeros Variable types: 1 continuous, 7482 integer (7482 binary) Found heuristic solution: objective 1.0795780 Found heuristic solution: objective 1.0242806 Found heuristic solution: objective 0.9764378 Root relaxation: objective 3.988368e-03, 9461 iterations, 0.60 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00399 0 7204 0.97644 0.00399 100% - 1s H 0 0 0.4087947 0.00399 99.0% - 3s H 0 0 0.4079999 0.00399 99.0% - 3s 0 0 0.00825 0 2458 0.40800 0.00825 98.0% - 6s 0 0 0.01351 0 2213 0.40800 0.01351 96.7% - 6s H 0 0 0.3961647 0.01351 96.6% - 7s 0 0 0.01401 0 2093 0.39616 0.01401 96.5% - 7s H 0 0 0.3950419 0.01401 96.5% - 7s H 0 0 0.3880921 0.01401 96.4% - 7s 0 0 0.02153 0 2061 0.38809 0.02153 94.5% - 7s H 0 0 0.3878940 0.02153 94.4% - 7s 0 0 0.02154 0 2059 0.38789 0.02154 94.4% - 7s H 0 0 0.3568171 0.02154 94.0% - 7s 0 0 0.02251 0 1760 0.35682 0.02251 93.7% - 7s H 0 0 0.3157314 0.02251 92.9% - 8s 0 0 0.02531 0 1313 0.31573 0.02531 92.0% - 8s 0 1 0.02531 0 1217 0.31573 0.02531 92.0% - 16s H 6 4 0.2771135 0.05034 81.8% 495 19s 10 6 0.07438 0 793 0.27711 0.07438 73.2% 297 20s H 12 8 0.2655749 0.07579 71.5% 248 20s H 16 10 0.2558816 0.09430 63.1% 1208 26s H 26 16 0.2484591 0.14856 40.2% 743 28s H 26 15 0.2392435 0.14856 37.9% 743 28s * 39 21 34 0.2346077 0.21262 9.37% 801 29s * 41 16 35 0.2279109 0.21262 6.71% 762 29s * 47 9 32 0.2254406 0.21452 4.84% 668 29s H 55 7 0.2247086 0.21452 4.53% 573 29s Cutting planes: Gomory: 6 MIR: 10 Explored 59 nodes (80509 simplex iterations) in 29.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.247085764814e-01, best bound 2.247085764814e-01, gap 0.0%