Gurobi 5.0.1 (linux64) logging started Tue Nov 20 06:19:31 2012 Optimize a model with 947 rows, 136 columns and 1894 nonzeros Presolve removed 378 rows and 0 columns Presolve time: 0.01s Presolved: 569 rows, 136 columns, 1506 nonzeros Variable types: 0 continuous, 136 integer (136 binary) Found heuristic solution: objective 30.0000000 Root relaxation: objective 4.475202e+01, 434 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 44.75202 0 132 30.00000 44.75202 49.2% - 0s H 0 0 31.0000000 44.75202 44.4% - 0s 0 0 44.24462 0 132 31.00000 44.24462 42.7% - 0s 0 0 44.06970 0 132 31.00000 44.06970 42.2% - 0s 0 0 43.81481 0 134 31.00000 43.81481 41.3% - 0s 0 0 43.57805 0 132 31.00000 43.57805 40.6% - 0s 0 0 43.52596 0 133 31.00000 43.52596 40.4% - 0s 0 0 43.46492 0 133 31.00000 43.46492 40.2% - 0s 0 0 43.26684 0 133 31.00000 43.26684 39.6% - 0s 0 0 43.14663 0 132 31.00000 43.14663 39.2% - 0s 0 0 43.07050 0 133 31.00000 43.07050 38.9% - 0s 0 0 43.05282 0 133 31.00000 43.05282 38.9% - 0s 0 0 43.02345 0 132 31.00000 43.02345 38.8% - 0s 0 0 43.01778 0 132 31.00000 43.01778 38.8% - 0s 0 0 42.97232 0 132 31.00000 42.97232 38.6% - 0s 0 0 42.93189 0 134 31.00000 42.93189 38.5% - 0s H 0 0 32.0000000 42.93189 34.2% - 0s 0 0 42.92718 0 133 32.00000 42.92718 34.1% - 0s 0 0 42.89982 0 133 32.00000 42.89982 34.1% - 0s 0 0 42.83326 0 133 32.00000 42.83326 33.9% - 0s H 0 0 33.0000000 42.83326 29.8% - 0s 0 0 42.73843 0 135 33.00000 42.73843 29.5% - 0s 0 0 42.70423 0 133 33.00000 42.70423 29.4% - 0s 0 0 42.67250 0 133 33.00000 42.67250 29.3% - 0s 0 0 42.62246 0 135 33.00000 42.62246 29.2% - 0s 0 0 42.52307 0 134 33.00000 42.52307 28.9% - 0s 0 0 42.47754 0 133 33.00000 42.47754 28.7% - 0s 0 0 42.47364 0 134 33.00000 42.47364 28.7% - 0s 0 0 42.47364 0 133 33.00000 42.47364 28.7% - 0s 0 2 42.47190 0 133 33.00000 42.47190 28.7% - 0s H 438 160 34.0000000 40.16407 18.1% 38.8 1s 612 211 37.36220 9 133 34.00000 39.85563 17.2% 38.0 5s 628 222 35.71429 14 134 34.00000 39.85563 17.2% 37.0 10s * 889 261 23 35.0000000 39.85563 13.9% 47.6 11s Cutting planes: Clique: 11 Zero half: 106 Explored 2725 nodes (101975 simplex iterations) in 14.74 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.500000000000e+01, best bound 3.500000000000e+01, gap 0.0%