Gurobi 5.6.3 (linux64) logging started Wed Oct 8 02:57:04 2014 Optimize a model with 42436 rows, 42231 columns and 168305 nonzeros Presolve time: 1.25s Presolved: 42436 rows, 42231 columns, 168305 nonzeros Variable types: 1 continuous, 42230 integer (42230 binary) Found heuristic solution: objective 1.0171893 Found heuristic solution: objective 0.9952119 Found heuristic solution: objective 0.9825371 Root relaxation: objective 8.634752e-02, 8314 iterations, 4.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.08635 0 1828 0.98254 0.08635 91.2% - 6s H 0 0 0.1587317 0.08635 45.6% - 13s 0 0 0.08793 0 1766 0.15873 0.08793 44.6% - 17s 0 0 0.08793 0 1713 0.15873 0.08793 44.6% - 18s 0 0 0.08799 0 1769 0.15873 0.08799 44.6% - 19s 0 0 0.08828 0 1787 0.15873 0.08828 44.4% - 19s 0 0 0.08833 0 1767 0.15873 0.08833 44.4% - 19s 0 0 0.08835 0 1789 0.15873 0.08835 44.3% - 19s 0 0 0.08835 0 1790 0.15873 0.08835 44.3% - 19s 0 0 0.08835 0 1730 0.15873 0.08835 44.3% - 20s 0 2 0.08835 0 1730 0.15873 0.08835 44.3% - 21s H 54 54 0.1582039 0.08900 43.7% 428 24s 58 60 0.10100 31 1287 0.15820 0.08900 43.7% 436 25s H 81 81 0.1546831 0.08900 42.5% 389 25s H 108 106 0.1502666 0.08900 40.8% 354 26s H 135 121 0.1449510 0.08901 38.6% 375 27s H 143 125 0.1444650 0.08901 38.4% 361 27s * 144 122 23 0.1433965 0.08901 37.9% 359 27s * 165 135 14 0.1420988 0.08901 37.4% 370 28s H 189 148 0.1417247 0.08903 37.2% 369 29s 196 147 cutoff 15 0.14172 0.08903 37.2% 363 30s H 216 159 0.1411607 0.08923 36.8% 367 30s * 219 158 17 0.1406430 0.08923 36.6% 363 30s * 256 185 19 0.1394564 0.08924 36.0% 348 31s * 277 193 17 0.1382845 0.08926 35.5% 347 32s * 283 187 17 0.1382296 0.08926 35.4% 342 32s * 284 186 16 0.1381775 0.08926 35.4% 341 32s * 290 186 16 0.1376767 0.08926 35.2% 337 32s H 324 187 0.1369282 0.08942 34.7% 335 34s * 331 190 11 0.1368028 0.08942 34.6% 331 34s 348 192 0.13461 12 251 0.13680 0.08945 34.6% 337 35s 410 171 0.11724 4 879 0.13680 0.09603 29.8% 386 40s 570 157 0.11432 6 854 0.13680 0.10648 22.2% 349 45s 606 168 0.10800 14 866 0.13680 0.10800 21.1% 353 50s 743 155 0.13476 29 87 0.13680 0.11468 16.2% 306 55s H 748 141 0.1361658 0.11468 15.8% 304 55s H 748 133 0.1358522 0.11468 15.6% 304 55s Explored 909 nodes (267650 simplex iterations) in 56.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.358522015039e-01, best bound 1.358522015039e-01, gap 0.0%