Gurobi 5.6.3 (linux64) logging started Wed Oct 8 05:41:44 2014 Optimize a model with 55696 rows, 55461 columns and 221135 nonzeros Presolve time: 1.56s Presolved: 55696 rows, 55461 columns, 221135 nonzeros Variable types: 1 continuous, 55460 integer (55460 binary) Found heuristic solution: objective 0.8164293 Found heuristic solution: objective 0.8160758 Found heuristic solution: objective 0.8131021 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 12975 7.8696240e-02 5.621335e+03 0.000000e+00 5s 13433 7.8569736e-02 0.000000e+00 0.000000e+00 6s Root relaxation: objective 7.856974e-02, 13433 iterations, 5.85 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.07857 0 2161 0.81310 0.07857 90.3% - 10s H 0 0 0.1378237 0.07857 43.0% - 18s 0 0 0.08047 0 1875 0.13782 0.08047 41.6% - 23s 0 0 0.08047 0 1849 0.13782 0.08047 41.6% - 24s 0 0 0.08093 0 1901 0.13782 0.08093 41.3% - 25s 0 0 0.08263 0 1904 0.13782 0.08263 40.0% - 25s 0 0 0.08312 0 1907 0.13782 0.08312 39.7% - 26s 0 0 0.08317 0 1965 0.13782 0.08317 39.7% - 26s 0 0 0.08353 0 1906 0.13782 0.08353 39.4% - 26s 0 0 0.08360 0 1909 0.13782 0.08360 39.3% - 26s 0 0 0.08360 0 1835 0.13782 0.08360 39.3% - 27s 0 2 0.08360 0 1835 0.13782 0.08360 39.3% - 28s 20 22 0.08669 10 1776 0.13782 0.08409 39.0% 518 30s H 27 27 0.1375254 0.08409 38.9% 497 30s H 54 54 0.1340345 0.08409 37.3% 497 32s H 108 106 0.1335720 0.08409 37.0% 326 33s * 113 109 61 0.1327336 0.08409 36.6% 315 33s * 114 108 61 0.1318105 0.08409 36.2% 312 33s H 135 118 0.1298633 0.08409 35.2% 317 34s 144 121 0.08913 2 1362 0.12986 0.08417 35.2% 326 35s H 162 135 0.1288782 0.08417 34.7% 327 35s * 178 151 23 0.1279150 0.08417 34.2% 320 36s * 186 149 24 0.1278091 0.08417 34.1% 310 36s H 298 226 0.1269678 0.08448 33.5% 304 39s 310 222 infeasible 5 0.12697 0.08448 33.5% 306 40s 371 209 infeasible 11 0.12697 0.08692 31.5% 350 45s 447 186 infeasible 6 0.12697 0.09306 26.7% 379 50s Cutting planes: Gomory: 5 MIR: 183 Zero half: 2 Explored 732 nodes (251981 simplex iterations) in 54.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.269677751522e-01, best bound 1.269677751522e-01, gap 0.0%