Build (method = -2) #dp: 1366 Step-3' Graph: 36 vertices and 190 arcs (0.00s) Step-4' Graph: 15 vertices and 148 arcs (0.00s) #V4/#V3 = 0.42 #A4/#A3 = 0.78 Ready! (0.00s) Optimize a model with 95 rows, 149 columns and 422 nonzeros Presolve removed 38 rows and 38 columns Presolve time: 0.00s Presolved: 57 rows, 111 columns, 310 nonzeros Variable types: 0 continuous, 111 integer (0 binary) Found heuristic solution: objective 1257.0000000 Found heuristic solution: objective 778.0000000 Optimize a model with 57 rows, 111 columns and 310 nonzeros Presolved: 57 rows, 111 columns, 310 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.110e+02 Factor NZ : 8.740e+02 Factor Ops : 1.735e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.62992363e+04 -6.01458554e+03 3.85e+03 1.11e-16 2.13e+02 0s 1 2.65716767e+03 -1.45790511e+03 2.59e+02 4.44e-16 2.23e+01 0s 2 1.02577560e+03 1.92828338e+02 1.03e+01 4.11e-15 3.28e+00 0s 3 7.60875624e+02 6.15958111e+02 1.40e-01 1.89e-15 5.45e-01 0s 4 7.00804596e+02 6.86075532e+02 1.28e-02 3.33e-16 5.54e-02 0s 5 6.97493496e+02 6.93465734e+02 2.31e-03 2.22e-16 1.51e-02 0s 6 6.96539817e+02 6.96430975e+02 4.96e-05 3.33e-16 4.09e-04 0s 7 6.96500001e+02 6.96500000e+02 9.88e-10 3.33e-16 3.83e-09 0s 8 6.96500000e+02 6.96500000e+02 4.43e-12 3.33e-16 3.83e-12 0s Barrier solved model in 8 iterations and 0.00 seconds Optimal objective 6.96500000e+02 Root relaxation: objective 6.965000e+02, 55 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 696.50000 0 2 778.00000 696.50000 10.5% - 0s H 0 0 697.0000000 696.50000 0.07% - 0s Explored 0 nodes (55 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 6.970000000000e+02, best bound 6.970000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 697 Solution: 2 x [58, 65] 2 x [57] 2 x [40, 57] 1 x [48, 57] 26 x [19, 29] 8 x [65, 69] 2 x [5, 55] 1 x [48, 55] 34 x [45] 34 x [23] 17 x [15, 46] 6 x [15, 62] 30 x [12] 6 x [14, 76] 13 x [48, 66] 24 x [3, 44] 26 x [33, 35] 7 x [32, 39] 15 x [1, 17] 2 x [39, 79] 17 x [13, 79] 18 x [54, 71] 5 x [19, 71] 1 x [14, 71] 3 x [3, 56] 1 x [14, 56] 33 x [51] 12 x [4, 38] 12 x [31, 42] 4 x [25, 75] 3 x [2, 41] 30 x [34, 41] 1 x [25, 41] 29 x [36, 60] 5 x [25, 36] 8 x [28, 42] 23 x [16, 28] 2 x [7, 20] 20 x [20, 63] 1 x [20, 25] 11 x [67, 77] 1 x [64, 67] 6 x [25, 64] 10 x [43, 50] 20 x [30, 70] 16 x [43, 68] 4 x [22, 59] 1 x [26, 30] 10 x [7, 26] 16 x [21, 24] 15 x [27, 37] 2 x [9, 27] 2 x [8, 9] 5 x [52, 72] 1 x [61] 2 x [61, 80] 10 x [10, 49] 19 x [18, 80] 4 x [10, 11] 14 x [6, 47] 5 x [74, 80] 6 x [53, 78] 29 x [73, 74] 1 x [47, 52] 1 x [22, 47]