Build (method = -2) #dp: 3541 Step-3' Graph: 114 vertices and 359 arcs (0.02s) Step-4' Graph: 29 vertices and 189 arcs (0.02s) #V4/#V3 = 0.25 #A4/#A3 = 0.53 Ready! (0.02s) Optimize a model with 110 rows, 190 columns and 517 nonzeros Presolve removed 30 rows and 31 columns Presolve time: 0.00s Presolved: 80 rows, 159 columns, 425 nonzeros Variable types: 0 continuous, 159 integer (2 binary) Found heuristic solution: objective 490.0000000 Found heuristic solution: objective 309.0000000 Optimize a model with 80 rows, 159 columns and 425 nonzeros Presolved: 80 rows, 159 columns, 425 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.570e+02 Factor NZ : 1.049e+03 Factor Ops : 2.101e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.14704533e+04 -8.93772939e+03 1.95e+03 2.22e-16 2.30e+02 0s 1 2.65639682e+03 -3.25760183e+03 2.81e+02 8.88e-16 3.62e+01 0s 2 4.27889504e+02 -5.51769541e+02 5.28e+00 3.06e-14 2.91e+00 0s 3 2.88216116e+02 1.20252352e+02 7.32e-04 3.11e-15 4.52e-01 0s 4 2.51438835e+02 2.37340215e+02 1.71e-05 2.36e-16 3.79e-02 0s 5 2.50009324e+02 2.49988534e+02 1.39e-08 2.22e-16 5.59e-05 0s 6 2.50000000e+02 2.50000000e+02 1.33e-13 4.44e-16 5.69e-11 0s Barrier solved model in 6 iterations and 0.00 seconds Optimal objective 2.50000000e+02 Root relaxation: objective 2.500000e+02, 78 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 250.0000000 250.00000 0.0% - 0s Explored 0 nodes (78 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.500000000000e+02, best bound 2.500000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.01 seconds Total run time: 0.03 seconds Objective: 250 Solution: 5 x [26, 81] 7 x [10, 80] 4 x [32, 79] 2 x [14, 78] 8 x [29, 77] 5 x [2, 76] 6 x [12, 75] 10 x [17, 74] 4 x [8, 73] 3 x [20, 72] 9 x [41, 71] 4 x [39, 70] 1 x [14, 70] 6 x [42, 69] 9 x [33, 68] 7 x [5, 67] 2 x [38, 66] 4 x [36, 65] 1 x [10, 65] 9 x [6, 64] 4 x [49, 63] 1 x [2, 63] 10 x [1, 62] 1 x [51, 61] 3 x [15, 61] 7 x [4, 60] 8 x [27, 59] 2 x [54, 58] 1 x [52, 58] 10 x [45, 58] 1 x [55, 57] 4 x [54, 57] 9 x [55, 56] 2 x [52, 53] 5 x [51, 53] 8 x [47, 50] 1 x [50, 50] 4 x [35, 48] 1 x [3, 48] 8 x [43, 46] 6 x [3, 44] 6 x [7, 40] 4 x [21, 37] 1 x [28, 34] 10 x [19, 31] 6 x [22, 30] 7 x [24, 25] 3 x [13, 23] 6 x [16, 18] 5 x [9, 11]