Build (method = -2) #dp: 946 Step-3' Graph: 119 vertices and 495 arcs (0.00s) Step-4' Graph: 101 vertices and 459 arcs (0.00s) #V4/#V3 = 0.85 #A4/#A3 = 0.93 Ready! (0.00s) Optimize a model with 121 rows, 460 columns and 1196 nonzeros Presolve removed 25 rows and 38 columns Presolve time: 0.00s Presolved: 96 rows, 422 columns, 1127 nonzeros Variable types: 0 continuous, 422 integer (0 binary) Found heuristic solution: objective 1729.0000000 Found heuristic solution: objective 1719.0000000 Optimize a model with 96 rows, 422 columns and 1127 nonzeros Presolved: 96 rows, 422 columns, 1127 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 6.760e+02 Factor NZ : 2.087e+03 Factor Ops : 5.510e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 7.52139137e+03 -6.16729049e+04 5.29e+04 2.22e-16 4.66e+02 0s 1 3.23217102e+03 -2.79428097e+04 9.09e+03 1.33e-15 9.17e+01 0s 2 2.03592946e+03 -6.92462270e+03 9.10e+02 2.66e-15 1.39e+01 0s 3 1.81176380e+03 -1.94194254e+03 1.80e+01 1.44e-15 4.43e+00 0s 4 1.62557125e+03 -4.29204291e+02 6.19e+00 1.11e-15 2.42e+00 0s 5 1.35139568e+03 3.58198123e+02 2.36e+00 1.10e-15 1.17e+00 0s 6 1.22749936e+03 7.61174350e+02 1.12e+00 1.07e-15 5.47e-01 0s 7 1.11286778e+03 9.99698969e+02 2.44e-01 1.17e-15 1.33e-01 0s 8 1.08258760e+03 1.07274380e+03 3.11e-02 1.02e-15 1.16e-02 0s 9 1.07710107e+03 1.07689954e+03 4.68e-04 8.78e-16 2.36e-04 0s 10 1.07700010e+03 1.07699990e+03 4.32e-12 1.25e-15 2.36e-07 0s 11 1.07700000e+03 1.07700000e+03 1.30e-11 1.03e-15 2.36e-10 0s 12 1.07700000e+03 1.07700000e+03 1.78e-13 1.12e-15 2.36e-13 0s Barrier solved model in 12 iterations and 0.01 seconds Optimal objective 1.07700000e+03 Root relaxation: objective 1.077000e+03, 144 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 1077.0000000 1077.00000 0.0% - 0s Explored 0 nodes (144 simplex iterations) in 0.02 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.077000000000e+03, best bound 1.077000000000e+03, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.02 seconds Total run time: 0.04 seconds Objective: 1077 Solution: 113 x [15] 20 x [12] 105 x [8, 12] 11 x [9] 120 x [9, 10] 151 x [1, 19] 30 x [5] 56 x [5, 6] 96 x [4] 37 x [4, 11] 1 x [2, 2, 4] 11 x [2, 2, 2, 4] 47 x [11, 16] 6 x [8, 8, 16] 1 x [3, 13] 87 x [7, 14] 52 x [7, 20] 87 x [3, 17, 18] 30 x [17, 20] 14 x [3, 20] 2 x [3, 3]