current bounds on the number of colors: 0 -- 238

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:09 2012

Optimize a model with 34153 rows, 28607 columns and 130067 nonzeros
Presolve removed 17 rows and 2023 columns
Presolve time: 0.15s
Presolved: 34136 rows, 26584 columns, 128044 nonzeros
Variable types: 0 continuous, 26584 integer (26584 binary)

Root relaxation: objective 0.000000e+00, 395 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 (395 simplex iterations) in 0.18 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 -- 119

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:09 2012

Optimize a model with 17053 rows, 14327 columns and 64487 nonzeros
Presolve removed 17 rows and 1003 columns
Presolve time: 0.12s
Presolved: 17036 rows, 13324 columns, 63484 nonzeros
Variable types: 0 continuous, 13324 integer (13324 binary)

Root relaxation: objective 0.000000e+00, 395 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 (395 simplex iterations) in 0.14 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 -- 59

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:10 2012

Optimize a model with 8503 rows, 7187 columns and 31697 nonzeros
Presolve removed 17 rows and 493 columns
Presolve time: 0.05s
Presolved: 8486 rows, 6694 columns, 31204 nonzeros
Variable types: 0 continuous, 6694 integer (6694 binary)

Root relaxation: objective 0.000000e+00, 393 iterations, 0.00 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 (393 simplex iterations) in 0.06 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 -- 29

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:10 2012

Optimize a model with 4228 rows, 3617 columns and 15302 nonzeros
Presolve removed 17 rows and 238 columns
Presolve time: 0.02s
Presolved: 4211 rows, 3379 columns, 15064 nonzeros
Variable types: 0 continuous, 3379 integer (3379 binary)

Root relaxation: objective 0.000000e+00, 401 iterations, 0.00 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 (401 simplex iterations) in 0.02 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 -- 14

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:10 2012

Optimize a model with 2233 rows, 1951 columns and 7651 nonzeros
Presolve removed 17 rows and 119 columns
Presolve time: 0.01s
Presolved: 2216 rows, 1832 columns, 7532 nonzeros
Variable types: 0 continuous, 1832 integer (1832 binary)

Root relaxation: objective 0.000000e+00, 423 iterations, 0.00 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 (423 simplex iterations) in 0.01 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 -- 7

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:10 2012

Optimize a model with 1093 rows, 999 columns and 3279 nonzeros
Presolve removed 17 rows and 51 columns
Presolve time: 0.00s
Presolved: 1076 rows, 948 columns, 3228 nonzeros
Variable types: 0 continuous, 948 integer (948 binary)

Root relaxation: objective 0.000000e+00, 453 iterations, 0.00 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 (614 simplex iterations) in 0.01 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 -- 3

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:10 2012

Optimize a model with 523 rows, 523 columns and 1093 nonzeros
Presolve removed 523 rows and 523 columns
Presolve time: 0.00s

Explored 0 nodes (0 simplex iterations) in 0.00 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: 1 -- 3

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:10 2012

Optimize a model with 808 rows, 761 columns and 2186 nonzeros
Presolve removed 250 rows and 273 columns
Presolve time: 0.00s
Presolved: 558 rows, 488 columns, 1674 nonzeros
Variable types: 0 continuous, 488 integer (488 binary)

Root relaxation: objective 0.000000e+00, 236 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  209          -    0.00000     -      -    0s
     0     0 infeasible    0               -    0.10000     -      -    0s

Explored 0 nodes (771 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Model objective exceeds cutoff
Best objective -, best bound 1.000000000000e+00, gap -


optimal solution found: number of colors: 3