Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:52:20 2014 Optimize a model with 12881 rows, 6481 columns and 32000 nonzeros Presolve removed 80 rows and 0 columns Presolve time: 0.12s Presolved: 12801 rows, 6481 columns, 31920 nonzeros Variable types: 1 continuous, 6480 integer (6480 binary) Found heuristic solution: objective 1.0280166 Found heuristic solution: objective 1.0090026 Found heuristic solution: objective 0.9581069 Root relaxation: objective 4.411875e-03, 8285 iterations, 0.50 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00441 0 6106 0.95811 0.00441 100% - 0s H 0 0 0.3697733 0.00441 98.8% - 2s 0 0 0.01048 0 1802 0.36977 0.01048 97.2% - 4s 0 0 0.02026 0 1380 0.36977 0.02026 94.5% - 5s H 0 0 0.3605089 0.02026 94.4% - 5s H 0 0 0.3598132 0.02026 94.4% - 5s 0 0 0.02131 0 1322 0.35981 0.02131 94.1% - 5s H 0 0 0.3568414 0.02131 94.0% - 5s 0 0 0.02689 0 1314 0.35684 0.02689 92.5% - 5s H 0 0 0.3525139 0.02689 92.4% - 5s 0 0 0.02766 0 1252 0.35251 0.02766 92.2% - 5s H 0 0 0.3170892 0.02766 91.3% - 5s H 0 0 0.3096726 0.02766 91.1% - 5s 0 0 0.03369 0 825 0.30967 0.03369 89.1% - 5s 0 2 0.03441 0 825 0.30967 0.03441 88.9% - 9s H 1 2 0.2770506 0.03441 87.6% 1765 10s H 8 6 0.2741341 0.13302 51.5% 221 12s H 11 7 0.2647500 0.13342 49.6% 160 13s H 12 8 0.2641172 0.13603 48.5% 147 13s H 12 7 0.2629093 0.13603 48.3% 147 13s H 14 8 0.2628459 0.13838 47.4% 126 14s H 15 8 0.2562185 0.13992 45.4% 118 14s H 15 7 0.2561605 0.13992 45.4% 118 14s 20 10 0.14262 0 514 0.25616 0.14262 44.3% 88.2 15s H 20 10 0.2558400 0.14262 44.3% 88.2 15s * 40 21 17 0.2557022 0.14409 43.6% 575 18s H 44 21 0.2537648 0.14409 43.2% 524 18s H 44 16 0.2371445 0.14409 39.2% 524 18s H 53 9 0.2328330 0.14479 37.8% 452 18s H 56 12 0.2313145 0.14479 37.4% 433 18s * 58 14 17 0.2200544 0.14479 34.2% 421 18s Cutting planes: Gomory: 2 MIR: 3 Zero half: 6 Explored 72 nodes (61908 simplex iterations) in 18.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.200543824619e-01, best bound 2.200543824619e-01, gap 0.0%