current bounds on the number of colors: 0 -- 177
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 23:27:37 2012
Optimize a model with 75065 rows, 16427 columns and 240240 nonzeros
Presolve time: 0.23s
Presolved: 75065 rows, 16427 columns, 240240 nonzeros
Variable types: 0 continuous, 16427 integer (16427 binary)
Root relaxation: objective 0.000000e+00, 722 iterations, 0.08 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 (1136 simplex iterations) in 0.42 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 -- 88
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 23:27:38 2012
Optimize a model with 37621 rows, 8639 columns and 120120 nonzeros
Presolve time: 0.15s
Presolved: 37621 rows, 8639 columns, 120120 nonzeros
Variable types: 0 continuous, 8639 integer (8639 binary)
Root relaxation: objective 0.000000e+00, 460 iterations, 0.02 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 (827 simplex iterations) in 0.22 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 -- 44
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 23:27:39 2012
Optimize a model with 18899 rows, 4745 columns and 60060 nonzeros
Presolve time: 0.07s
Presolved: 18899 rows, 4745 columns, 60060 nonzeros
Variable types: 0 continuous, 4745 integer (4745 binary)
Root relaxation: objective 0.000000e+00, 375 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 (716 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 -- 22
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 23:27:39 2012
Optimize a model with 9538 rows, 2798 columns and 30030 nonzeros
Presolve time: 0.03s
Presolved: 9538 rows, 2798 columns, 30030 nonzeros
Variable types: 0 continuous, 2798 integer (2798 binary)
Root relaxation: objective 0.000000e+00, 369 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 (711 simplex iterations) in 0.05 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 -- 11
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 23:27:39 2012
Optimize a model with 4432 rows, 1736 columns and 13650 nonzeros
Presolve time: 0.01s
Presolved: 4432 rows, 1736 columns, 13650 nonzeros
Variable types: 0 continuous, 1736 integer (1736 binary)
Root relaxation: objective 0.000000e+00, 376 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 0 324 - 0.00000 - - 0s
H 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (1842 simplex iterations) in 0.09 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 -- 5
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 23:27:39 2012
Optimize a model with 1879 rows, 1205 columns and 5460 nonzeros
Presolve removed 177 rows and 177 columns
Presolve time: 0.00s
Presolved: 1702 rows, 1028 columns, 5106 nonzeros
Variable types: 0 continuous, 1028 integer (1028 binary)
Root relaxation: objective 0.000000e+00, 184 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 0 177 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (750 simplex iterations) in 0.02 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: 2 -- 5
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 23:27:39 2012
Optimize a model with 2730 rows, 1382 columns and 8190 nonzeros
Presolve time: 0.01s
Presolved: 2730 rows, 1382 columns, 8190 nonzeros
Variable types: 0 continuous, 1382 integer (1382 binary)
Root relaxation: objective 0.000000e+00, 378 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 0 346 - 0.00000 - - 0s
0 0 0.00000 0 350 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (4378 simplex iterations) in 0.55 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: 3 -- 5
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 23:27:40 2012
Optimize a model with 3581 rows, 1559 columns and 10920 nonzeros
Presolve time: 0.01s
Presolved: 3581 rows, 1559 columns, 10920 nonzeros
Variable types: 0 continuous, 1559 integer (1559 binary)
Root relaxation: objective 0.000000e+00, 386 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 0 338 - 0.00000 - - 0s
0 0 0.00000 0 340 - 0.00000 - - 0s
0 0 0.00000 0 340 - 0.00000 - - 0s
0 0 0.00000 0 382 - 0.00000 - - 0s
0 0 0.00000 0 328 - 0.00000 - - 1s
0 0 0.00000 0 322 - 0.00000 - - 1s
0 0 0.00000 0 342 - 0.00000 - - 2s
0 0 0.00000 0 320 - 0.00000 - - 2s
0 0 0.00000 0 322 - 0.00000 - - 2s
0 0 0.00000 0 329 - 0.00000 - - 3s
0 0 0.00000 0 321 - 0.00000 - - 3s
0 0 0.00000 0 320 - 0.00000 - - 4s
0 0 0.00000 0 323 - 0.00000 - - 4s
0 0 0.00000 0 321 - 0.00000 - - 4s
0 2 0.00000 0 321 - 0.00000 - - 5s
604 59 0.00000 20 492 - 0.00000 - 123 11s
606 60 0.00000 19 418 - 0.00000 - 122 15s
610 63 0.00000 17 416 - 0.00000 - 122 20s
615 66 0.00000 13 409 - 0.00000 - 121 26s
621 70 infeasible 11 - 0.00000 - 197 30s
908 22 infeasible 25 - 0.00000 - 202 35s
1250 18 infeasible 21 - 0.00000 - 203 40s
1549 5 infeasible 16 - 0.00000 - 208 45s
1890 20 infeasible 24 - 0.00000 - 207 50s
2196 4 0.00000 21 296 - 0.00000 - 211 55s
Cutting planes:
Clique: 1
Zero half: 15
Explored 2219 nodes (508623 simplex iterations) in 55.44 seconds
Thread count was 1 (of 16 available processors)
Model objective exceeds cutoff
Best objective -, best bound -, gap -
optimal solution found: number of colors: 5