Gurobi 5.6.3 (linux64) logging started Wed Oct 8 00:49:19 2014 Optimize a model with 29584 rows, 29413 columns and 117135 nonzeros Presolve time: 0.83s Presolved: 29584 rows, 29413 columns, 117135 nonzeros Variable types: 1 continuous, 29412 integer (29412 binary) Found heuristic solution: objective 1.2595448 Found heuristic solution: objective 0.9727590 Found heuristic solution: objective 0.8872161 Root relaxation: objective 9.217707e-02, 8329 iterations, 1.75 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.09218 0 1513 0.88722 0.09218 89.6% - 3s H 0 0 0.3318368 0.09218 72.2% - 3s 0 0 0.09239 0 1440 0.33184 0.09239 72.2% - 5s 0 0 0.09239 0 1524 0.33184 0.09239 72.2% - 7s H 0 0 0.3311159 0.09239 72.1% - 7s H 0 0 0.1825043 0.09239 49.4% - 7s 0 0 0.09304 0 1393 0.18250 0.09304 49.0% - 8s 0 2 0.09304 0 1393 0.18250 0.09304 49.0% - 44s H 1 2 0.1733768 0.09304 46.3% 1149 47s H 3 3 0.1730620 0.09317 46.2% 383 49s H 4 3 0.1667437 0.09469 43.2% 287 49s 6 5 0.09645 0 1286 0.16674 0.09645 42.2% 192 50s H 10 7 0.1663937 0.09679 41.8% 115 51s 45 36 0.10653 31 1092 0.16639 0.09849 40.8% 612 55s H 65 54 0.1650218 0.09849 40.3% 502 55s H 92 80 0.1593144 0.09849 38.2% 409 55s * 101 82 60 0.1583933 0.09849 37.8% 381 56s * 133 97 32 0.1574932 0.09850 37.5% 329 56s * 135 97 33 0.1569851 0.09850 37.3% 325 56s * 136 88 33 0.1563298 0.09850 37.0% 322 56s * 138 86 17 0.1561606 0.09866 36.8% 343 56s H 143 86 0.1546914 0.09897 36.0% 347 57s * 144 87 19 0.1541301 0.09897 35.8% 347 57s H 177 80 0.1534226 0.09931 35.3% 337 58s * 186 84 25 0.1506754 0.09931 34.1% 332 58s * 187 83 25 0.1504565 0.09931 34.0% 331 58s 224 50 infeasible 35 0.15046 0.11475 23.7% 360 60s Cutting planes: Gomory: 5 MIR: 48 Zero half: 2 Explored 279 nodes (110422 simplex iterations) in 60.43 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.504565427230e-01, best bound 1.504565427230e-01, gap 0.0%