Build (method = -2) #dp: 1393 Step-3' Graph: 35 vertices and 243 arcs (0.01s) Step-4' Graph: 5 vertices and 183 arcs (0.01s) #V4/#V3 = 0.14 #A4/#A3 = 0.75 Ready! (0.01s) Optimize a model with 65 rows, 184 columns and 548 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.00s Presolved: 63 rows, 182 columns, 544 nonzeros Variable types: 0 continuous, 182 integer (12 binary) Found heuristic solution: objective 323.0000000 Found heuristic solution: objective 319.0000000 Optimize a model with 63 rows, 182 columns and 544 nonzeros Presolved: 63 rows, 182 columns, 544 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.830e+02 Factor NZ : 6.520e+02 Factor Ops : 1.194e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.04521132e+03 -9.26394174e+02 3.76e+01 6.83e-03 1.24e+01 0s 1 2.24814949e+02 -4.12383981e+02 3.84e-13 3.33e-16 1.58e+00 0s 2 1.49953897e+02 -2.84692086e+01 5.33e-14 2.22e-16 4.32e-01 0s 3 1.13919049e+02 9.49399982e+01 1.19e-13 2.22e-16 4.52e-02 0s 4 1.09394263e+02 1.04135573e+02 9.97e-14 2.22e-16 1.25e-02 0s 5 1.09334030e+02 1.09332683e+02 3.38e-14 2.22e-16 3.21e-06 0s 6 1.09333334e+02 1.09333333e+02 9.21e-14 2.22e-16 3.21e-09 0s 7 1.09333333e+02 1.09333333e+02 1.20e-13 3.33e-16 3.34e-15 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 1.09333333e+02 Root relaxation: objective 1.093333e+02, 153 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 109.33333 0 4 319.00000 109.33333 65.7% - 0s H 0 0 110.0000000 109.33333 0.61% - 0s Explored 0 nodes (211 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.100000000000e+02, best bound 1.100000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.03 seconds Objective: 110 Solution: 5 x [3, 7, 54] 8 x [33, 46, 49] 4 x [15, 39, 59] 9 x [6, 34, 60] 1 x [6, 34, 52] 2 x [5, 22, 53] 2 x [5, 18, 20] 6 x [2, 44, 55] 3 x [1, 31, 50] 8 x [25, 36, 37] 1 x [19, 28, 58] 9 x [14, 23, 28] 1 x [12] 4 x [12, 21, 52] 3 x [10, 17, 42] 4 x [31, 48, 58] 1 x [49, 55, 56] 6 x [8, 16, 32] 2 x [1, 32, 51] 1 x [9, 26, 37] 2 x [4, 15, 27] 7 x [11, 13, 47] 1 x [3, 5, 45] 3 x [5, 40, 57] 8 x [9, 29, 35] 2 x [24, 27, 53] 1 x [41, 45, 57] 2 x [30, 38, 42] 1 x [32, 32, 43] 1 x [11, 27, 43] 2 x [11, 20, 30]