current bounds on the number of colors: 0 -- 49
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 18:12:17 2012
Optimize a model with 14113 rows, 1762 columns and 43368 nonzeros
Presolve time: 0.05s
Presolved: 14113 rows, 1762 columns, 43368 nonzeros
Variable types: 0 continuous, 1762 integer (1762 binary)
Root relaxation: objective 0.000000e+00, 173 iterations, 0.01 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
* 0 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (550 simplex iterations) in 0.11 seconds
Thread count was 1 (of 16 available processors)
Optimal solution found (tolerance 1.00e-04)
Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0%
current bounds on the number of colors: 0 -- 24
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 18:12:17 2012
Optimize a model with 7081 rows, 1174 columns and 21684 nonzeros
Presolve time: 0.02s
Presolved: 7081 rows, 1174 columns, 21684 nonzeros
Variable types: 0 continuous, 1174 integer (1174 binary)
Root relaxation: objective 0.000000e+00, 107 iterations, 0.01 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
0 0 0.00000 0 28 - 0.00000 - - 0s
H 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (857 simplex iterations) in 0.07 seconds
Thread count was 1 (of 16 available processors)
Optimal solution found (tolerance 1.00e-04)
Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0%
current bounds on the number of colors: 0 -- 12
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 18:12:17 2012
Optimize a model with 3565 rows, 880 columns and 10842 nonzeros
Presolve time: 0.01s
Presolved: 3565 rows, 880 columns, 10842 nonzeros
Variable types: 0 continuous, 880 integer (880 binary)
Root relaxation: objective 0.000000e+00, 99 iterations, 0.00 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
0 0 0.00000 0 76 - 0.00000 - - 0s
0 0 0.00000 0 50 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (1854 simplex iterations) in 0.22 seconds
Thread count was 1 (of 16 available processors)
Model objective exceeds cutoff
Best objective -, best bound 1.000000000000e+00, gap -
current bounds on the number of colors: 6 -- 12
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 18:12:17 2012
Optimize a model with 5323 rows, 1027 columns and 16263 nonzeros
Presolve time: 0.01s
Presolved: 5323 rows, 1027 columns, 16263 nonzeros
Variable types: 0 continuous, 1027 integer (1027 binary)
Root relaxation: objective 0.000000e+00, 108 iterations, 0.01 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
0 0 0.00000 0 56 - 0.00000 - - 0s
0 0 0.00000 0 52 - 0.00000 - - 0s
0 0 0.00000 0 132 - 0.00000 - - 0s
0 0 0.00000 0 154 - 0.00000 - - 0s
0 0 0.00000 0 129 - 0.00000 - - 1s
0 0 0.00000 0 98 - 0.00000 - - 1s
0 0 0.00000 0 97 - 0.00000 - - 2s
0 0 0.00000 0 79 - 0.00000 - - 2s
0 0 0.00000 0 139 - 0.00000 - - 2s
0 0 0.00000 0 144 - 0.00000 - - 3s
0 0 0.00000 0 173 - 0.00000 - - 3s
0 0 0.00000 0 173 - 0.00000 - - 3s
0 2 0.00000 0 173 - 0.00000 - - 4s
81 11 0.00000 12 88 - 0.00000 - 104 5s
910 29 0.00000 8 132 - 0.00000 - 87.8 10s
918 35 0.00000 2 40 - 0.00000 - 87.0 15s
930 37 0.00000 17 131 - 0.00000 - 121 20s
1323 29 0.00000 28 123 - 0.00000 - 119 25s
1876 18 0.00000 26 122 - 0.00000 - 121 30s
* 2328 3 28 0.0000000 0.00000 0.0% 122 33s
Cutting planes:
Clique: 19
Zero half: 1
Explored 2329 nodes (311497 simplex iterations) in 33.90 seconds
Thread count was 1 (of 16 available processors)
Optimal solution found (tolerance 1.00e-04)
Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0%
current bounds on the number of colors: 6 -- 9
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 18:12:51 2012
Optimize a model with 4151 rows, 929 columns and 12649 nonzeros
Presolve time: 0.01s
Presolved: 4151 rows, 929 columns, 12649 nonzeros
Variable types: 0 continuous, 929 integer (929 binary)
Root relaxation: objective 0.000000e+00, 100 iterations, 0.00 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
0 0 0.00000 0 52 - 0.00000 - - 0s
0 0 0.00000 0 110 - 0.00000 - - 0s
0 0 0.00000 0 252 - 0.00000 - - 0s
0 0 0.00000 0 287 - 0.00000 - - 0s
0 0 0.00000 0 281 - 0.00000 - - 1s
0 0 0.00000 0 267 - 0.00000 - - 2s
0 0 0.00000 0 285 - 0.00000 - - 3s
0 0 0.00000 0 274 - 0.00000 - - 4s
0 0 0.00000 0 272 - 0.00000 - - 5s
0 0 0.00000 0 291 - 0.00000 - - 5s
0 0 0.00000 0 259 - 0.00000 - - 6s
0 2 0.00000 0 259 - 0.00000 - - 6s
Cutting planes:
Clique: 101
Zero half: 3
Explored 3 nodes (34262 simplex iterations) in 6.77 seconds
Thread count was 1 (of 16 available processors)
Model objective exceeds cutoff
Best objective -, best bound -, gap -
current bounds on the number of colors: 7 -- 9
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 18:12:58 2012
Optimize a model with 4737 rows, 978 columns and 14456 nonzeros
Presolve time: 0.01s
Presolved: 4737 rows, 978 columns, 14456 nonzeros
Variable types: 0 continuous, 978 integer (978 binary)
Root relaxation: objective 0.000000e+00, 98 iterations, 0.00 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
0 0 0.00000 0 38 - 0.00000 - - 0s
0 0 0.00000 0 36 - 0.00000 - - 0s
0 0 0.00000 0 183 - 0.00000 - - 0s
0 0 0.00000 0 209 - 0.00000 - - 0s
0 0 0.00000 0 182 - 0.00000 - - 1s
0 0 0.00000 0 130 - 0.00000 - - 1s
0 0 0.00000 0 233 - 0.00000 - - 2s
0 0 0.00000 0 187 - 0.00000 - - 3s
0 0 0.00000 0 166 - 0.00000 - - 3s
0 0 0.00000 0 170 - 0.00000 - - 4s
0 0 0.00000 0 183 - 0.00000 - - 4s
0 0 0.00000 0 183 - 0.00000 - - 4s
0 2 0.00000 0 183 - 0.00000 - - 5s
Cutting planes:
Clique: 116
Zero half: 8
Explored 37 nodes (39438 simplex iterations) in 6.36 seconds
Thread count was 1 (of 16 available processors)
Model objective exceeds cutoff
Best objective -, best bound -, gap -
optimal solution found: number of colors: 9