Build (method = -2) #dp: 1275 Step-3' Graph: 151 vertices and 575 arcs (0.00s) Step-4' Graph: 134 vertices and 541 arcs (0.01s) #V4/#V3 = 0.89 #A4/#A3 = 0.94 Ready! (0.01s) Optimize a model with 154 rows, 542 columns and 1383 nonzeros Presolve removed 33 rows and 54 columns Presolve time: 0.01s Presolved: 121 rows, 488 columns, 1286 nonzeros Variable types: 0 continuous, 488 integer (0 binary) Found heuristic solution: objective 1836.0000000 Found heuristic solution: objective 1595.0000000 Optimize a model with 121 rows, 488 columns and 1286 nonzeros Presolved: 121 rows, 488 columns, 1286 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 7.640e+02 Factor NZ : 2.747e+03 Factor Ops : 7.468e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 7.16726700e+03 -7.92737161e+04 6.76e+04 2.22e-16 5.25e+02 0s 1 3.14098783e+03 -4.53542883e+04 1.21e+04 2.33e-15 1.17e+02 0s 2 2.03389736e+03 -1.17822666e+04 1.03e+03 2.00e-15 1.79e+01 0s 3 1.85609885e+03 -3.11608531e+03 8.54e+01 1.22e-15 5.22e+00 0s 4 1.60873062e+03 -4.83405465e+02 3.11e-01 1.14e-15 2.13e+00 0s 5 1.33781968e+03 3.07589090e+02 7.62e-02 1.21e-15 1.05e+00 0s 6 1.20368092e+03 8.81072679e+02 2.58e-02 9.71e-16 3.28e-01 0s 7 1.15636986e+03 1.11569578e+03 5.82e-03 9.45e-16 4.13e-02 0s 8 1.14505295e+03 1.14494315e+03 1.55e-05 7.94e-16 1.11e-04 0s 9 1.14500000e+03 1.14500000e+03 1.41e-11 1.01e-15 1.23e-10 0s 10 1.14500000e+03 1.14500000e+03 1.14e-11 8.50e-16 1.23e-13 0s Barrier solved model in 10 iterations and 0.01 seconds Optimal objective 1.14500000e+03 Root relaxation: objective 1.145000e+03, 234 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 1145.0000000 1145.00000 0.0% - 0s Explored 0 nodes (234 simplex iterations) in 0.02 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.145000000000e+03, best bound 1.145000000000e+03, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.02 seconds Total run time: 0.04 seconds Objective: 1145 Solution: 101 x [11] 16 x [11, 12] 32 x [10] 107 x [10, 18, 20] 65 x [3] 30 x [3, 18] 9 x [3, 18, 20, 20] 25 x [2] 79 x [5] 14 x [4, 5] 1 x [5, 9, 9] 4 x [5, 9, 9, 9] 98 x [1, 4] 90 x [19] 28 x [4, 19] 115 x [8, 14] 25 x [14, 17] 54 x [15] 52 x [15, 17] 50 x [6, 13] 38 x [9, 13, 17] 16 x [16] 46 x [6, 16] 50 x [7, 16]