Build (method = -2) #dp: 3713 Step-3' Graph: 704 vertices and 2105 arcs (0.04s) Step-4' Graph: 105 vertices and 907 arcs (0.04s) #V4/#V3 = 0.15 #A4/#A3 = 0.43 Ready! (0.04s) Optimize a model with 165 rows, 908 columns and 2518 nonzeros Presolve removed 8 rows and 25 columns Presolve time: 0.01s Presolved: 157 rows, 883 columns, 2462 nonzeros Variable types: 0 continuous, 883 integer (0 binary) Found heuristic solution: objective 2602.0000000 Found heuristic solution: objective 2117.0000000 Optimize a model with 157 rows, 883 columns and 2462 nonzeros Presolved: 157 rows, 883 columns, 2462 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.369e+03 Factor NZ : 4.253e+03 Factor Ops : 1.487e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.31873038e+05 -2.53116419e+05 8.79e+05 2.22e-16 1.55e+03 0s 1 3.03938330e+04 -7.49464779e+04 1.22e+05 6.66e-16 2.28e+02 0s 2 4.79561011e+03 -1.88503448e+04 9.26e+03 1.05e-14 2.43e+01 0s 3 2.41411042e+03 -6.39455782e+03 8.05e+02 7.33e-15 5.54e+00 0s 4 1.52109661e+03 -2.39523455e+03 1.30e+02 2.89e-15 2.23e+00 0s 5 1.30260959e+03 -3.50610621e+02 5.99e+01 1.11e-15 9.28e-01 0s 6 1.14438639e+03 6.00048366e+02 2.53e+01 4.44e-16 3.03e-01 0s 7 1.07320685e+03 8.58391928e+02 7.62e+00 4.27e-16 1.19e-01 0s 8 1.04035171e+03 9.66495015e+02 1.39e+00 4.44e-16 4.07e-02 0s 9 1.03306239e+03 9.89394135e+02 4.99e-01 3.90e-16 2.40e-02 0s 10 1.02827427e+03 1.01564853e+03 7.42e-02 3.37e-16 6.94e-03 0s 11 1.02677550e+03 1.02607582e+03 3.96e-03 5.55e-16 3.85e-04 0s 12 1.02657532e+03 1.02657436e+03 3.47e-12 4.44e-16 5.23e-07 0s 13 1.02657500e+03 1.02657500e+03 1.88e-11 3.33e-16 5.30e-13 0s Barrier solved model in 13 iterations and 0.01 seconds Optimal objective 1.02657500e+03 Root relaxation: objective 1.026575e+03, 207 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1026.57500 0 63 2117.00000 1026.57500 51.5% - 0s H 0 0 1029.0000000 1026.57500 0.24% - 0s H 0 0 1028.0000000 1026.57500 0.14% - 0s 0 0 1026.57500 0 55 1028.00000 1026.57500 0.14% - 0s H 0 0 1027.0000000 1026.57500 0.04% - 0s Cutting planes: Gomory: 1 Explored 0 nodes (311 simplex iterations) in 0.11 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.027000000000e+03, best bound 1.027000000000e+03, gap 0.0% Preprocessing time: 0.05 seconds Gurobi run time: 0.11 seconds Total run time: 0.16 seconds Objective: 1027 Solution: 18 x [4, 17, 46] 36 x [4, 23, 48] 42 x [4, 22, 36] 36 x [6, 40, 47] 5 x [30, 40, 47] 1 x [30, 43, 47] 1 x [46, 47, 48] 1 x [24, 33, 50] 8 x [33, 46, 57] 28 x [8, 33, 54] 31 x [15, 30, 33] 19 x [9, 21, 33] 1 x [19, 51] 7 x [5, 19, 51] 34 x [18, 19, 21] 24 x [18, 31, 52] 10 x [9, 13, 56] 8 x [30, 43, 56] 20 x [31, 46, 56] 17 x [5, 12, 24] 3 x [34, 55] 25 x [34, 50, 59] 7 x [1, 38, 50] 19 x [16, 20, 35] 9 x [14, 16, 50] 31 x [16, 35, 44] 35 x [16, 36, 38] 1 x [2, 20, 55] 2 x [17, 20, 55] 1 x [20, 50, 55] 21 x [2, 41, 55] 3 x [35, 55, 59] 47 x [8, 35, 58] 27 x [14, 49, 53] 27 x [3, 49, 53] 41 x [13, 39, 50] 7 x [13, 27, 50] 31 x [13, 26, 60] 18 x [5, 8, 37] 1 x [7, 36, 45] 38 x [7, 38, 45] 25 x [7, 9, 60] 2 x [8, 9, 40] 13 x [9, 26, 40] 1 x [9, 40, 60] 8 x [11, 15, 40] 33 x [5, 29, 40] 7 x [9, 11, 25] 20 x [11, 15, 25] 11 x [10, 11, 12] 16 x [5, 10, 15] 47 x [28, 52, 59] 38 x [22, 23, 28] 27 x [20, 31, 46] 6 x [22, 31, 32] 5 x [15, 21, 22] 4 x [9, 31, 39] 1 x [15, 31, 39] 22 x [12, 42, 54]