Build (method = -2) #dp: 6995 Step-3' Graph: 120 vertices and 1650 arcs (0.03s) Step-4' Graph: 85 vertices and 1580 arcs (0.03s) #V4/#V3 = 0.71 #A4/#A3 = 0.96 Ready! (0.03s) Optimize a model with 166 rows, 1581 columns and 4579 nonzeros Presolve removed 28 rows and 47 columns Presolve time: 0.02s Presolved: 138 rows, 1534 columns, 4460 nonzeros Variable types: 0 continuous, 1534 integer (43 binary) Found heuristic solution: objective 496.0000000 Found heuristic solution: objective 341.0000000 Optimize a model with 138 rows, 1534 columns and 4460 nonzeros Presolved: 138 rows, 1534 columns, 4460 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.907e+03 Factor NZ : 5.261e+03 Factor Ops : 2.715e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.18349892e+04 -3.66105116e+04 1.15e+05 2.69e-01 1.19e+02 0s 1 3.27604423e+03 -8.83452354e+03 2.00e+04 5.55e-16 2.07e+01 0s 2 7.36575580e+02 -3.73094405e+03 2.07e+03 2.89e-15 2.96e+00 0s 3 4.00621350e+02 -9.19186974e+02 1.27e+02 2.44e-15 4.83e-01 0s 4 3.11138692e+02 -3.19600241e+02 3.70e+01 6.66e-16 2.14e-01 0s 5 2.57959585e+02 -6.17729811e+01 1.66e+01 3.33e-16 1.06e-01 0s 6 2.32982445e+02 2.84279175e+01 8.23e+00 4.44e-16 6.68e-02 0s 7 2.12839472e+02 1.41819161e+02 2.86e+00 3.33e-16 2.30e-02 0s 8 2.04116549e+02 1.84382213e+02 1.94e-01 3.33e-16 6.33e-03 0s 9 2.01826144e+02 1.92936530e+02 4.63e-02 2.64e-16 2.85e-03 0s 10 2.00838778e+02 1.98327196e+02 7.06e-03 3.33e-16 8.05e-04 0s 11 2.00625979e+02 1.99906527e+02 2.52e-03 3.33e-16 2.30e-04 0s 12 2.00508028e+02 2.00469712e+02 2.13e-05 3.33e-16 1.23e-05 0s 13 2.00493440e+02 2.00492678e+02 1.44e-07 4.44e-16 2.44e-07 0s 14 2.00493333e+02 2.00493333e+02 2.56e-13 4.44e-16 3.88e-13 0s Barrier solved model in 14 iterations and 0.02 seconds Optimal objective 2.00493333e+02 Root relaxation: objective 2.004933e+02, 650 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 200.49333 0 62 341.00000 200.49333 41.2% - 0s H 0 0 204.0000000 200.49333 1.72% - 0s H 0 0 203.0000000 200.49333 1.23% - 0s H 0 0 202.0000000 200.49333 0.75% - 0s 0 0 200.49333 0 63 202.00000 200.49333 0.75% - 0s H 0 0 201.0000000 200.49333 0.25% - 0s Cutting planes: Zero half: 1 Explored 0 nodes (897 simplex iterations) in 0.25 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.010000000000e+02, best bound 2.010000000000e+02, gap 0.0% Preprocessing time: 0.04 seconds Gurobi run time: 0.25 seconds Total run time: 0.29 seconds Objective: 201 Solution: 4 x [31, 81] 5 x [32, 80] 1 x [2, 11, 80] 1 x [5, 8, 80] 5 x [33, 79] 6 x [34, 78] 1 x [7, 8, 78] 3 x [35, 77] 1 x [36, 76] 5 x [2, 15, 76] 1 x [7, 10, 76] 6 x [37, 75] 3 x [38, 74] 1 x [1, 18, 74] 3 x [8, 11, 74] 2 x [9, 10, 74] 3 x [2, 18, 73] 1 x [7, 13, 73] 5 x [40, 72] 7 x [41, 71] 3 x [42, 70] 2 x [3, 20, 70] 2 x [9, 14, 70] 5 x [43, 69] 1 x [3, 21, 69] 1 x [3, 69] 8 x [44, 68] 5 x [45, 67] 4 x [46, 66] 5 x [47, 65] 4 x [48, 64] 1 x [3, 26, 64] 2 x [49, 63] 1 x [4, 27, 62] 1 x [11, 20, 62] 3 x [10, 22, 61] 3 x [15, 17, 61] 3 x [16, 16, 61] 5 x [52, 60] 1 x [9, 24, 60] 2 x [10, 23, 60] 3 x [53, 59] 4 x [1, 33, 59] 3 x [6, 28, 59] 1 x [7, 27, 59] 1 x [17, 59] 6 x [54, 58] 2 x [12, 23, 58] 2 x [15, 20, 58] 6 x [55, 57] 3 x [8, 29, 56] 1 x [13, 24, 56] 1 x [18, 20, 55] 2 x [20, 21, 52] 2 x [3, 39, 51] 3 x [21, 21, 51] 4 x [13, 30, 50] 1 x [15, 28, 50] 4 x [19, 24, 50] 1 x [5, 39, 49] 1 x [14, 31, 48] 2 x [1, 46, 46] 1 x [10, 38, 45] 1 x [5, 44, 44] 1 x [15, 35, 43] 2 x [11, 40, 42] 1 x [15, 36, 42] 1 x [20, 31, 42] 2 x [26, 26, 41] 2 x [18, 35, 40] 1 x [20, 33, 40] 3 x [26, 27, 40] 3 x [19, 35, 39] 1 x [27, 28, 38] 2 x [28, 30, 35] 1 x [25, 34, 34]