Gurobi 5.6.3 (linux64) logging started Wed Oct 8 02:14:24 2014 Optimize a model with 38416 rows, 38221 columns and 152295 nonzeros Presolve time: 1.14s Presolved: 38416 rows, 38221 columns, 152295 nonzeros Variable types: 1 continuous, 38220 integer (38220 binary) Found heuristic solution: objective 0.8386770 Found heuristic solution: objective 0.8348387 Found heuristic solution: objective 0.7477982 Root relaxation: objective 8.807820e-02, 10728 iterations, 2.92 seconds Total elapsed time = 5.22s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.08808 0 1625 0.74780 0.08808 88.2% - 5s H 0 0 0.1546065 0.08808 43.0% - 7s 0 0 0.09241 0 1414 0.15461 0.09241 40.2% - 10s 0 0 0.09241 0 1462 0.15461 0.09241 40.2% - 11s 0 0 0.09310 0 1509 0.15461 0.09310 39.8% - 12s 0 0 0.09667 0 1445 0.15461 0.09667 37.5% - 12s 0 0 0.09720 0 1454 0.15461 0.09720 37.1% - 12s 0 0 0.09722 0 1477 0.15461 0.09722 37.1% - 12s 0 0 0.09722 0 1407 0.15461 0.09722 37.1% - 13s 0 2 0.09722 0 1407 0.15461 0.09722 37.1% - 13s 32 34 0.10681 17 1147 0.15461 0.09809 36.6% 379 15s H 54 54 0.1539874 0.09809 36.3% 332 15s H 132 109 0.1536682 0.09812 36.1% 266 17s H 136 113 0.1532590 0.09812 36.0% 270 17s * 159 131 45 0.1532418 0.09812 36.0% 262 17s H 190 154 0.1505981 0.09812 34.8% 269 18s H 202 166 0.1502273 0.09812 34.7% 265 19s H 217 169 0.1495149 0.09878 33.9% 256 19s 242 196 0.11283 15 796 0.14951 0.09878 33.9% 258 20s H 244 196 0.1487938 0.09878 33.6% 257 20s H 282 222 0.1485258 0.09884 33.5% 255 20s H 298 233 0.1472912 0.09884 32.9% 255 21s * 307 225 21 0.1456869 0.09884 32.2% 252 21s H 325 232 0.1439637 0.09884 31.3% 249 21s * 340 235 12 0.1403245 0.09888 29.5% 249 22s * 343 230 10 0.1399440 0.09888 29.3% 248 22s 384 189 infeasible 18 0.13994 0.10365 25.9% 297 25s H 441 132 0.1394447 0.11163 19.9% 304 26s Cutting planes: Gomory: 6 MIR: 7 Zero half: 2 Explored 576 nodes (172910 simplex iterations) in 27.66 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.394446943002e-01, best bound 1.394446943002e-01, gap 0.0%