current bounds on the number of colors: 0 -- 86

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:28 2012

Optimize a model with 1892 rows, 3740 columns and 9116 nonzeros
Presolve removed 28 rows and 1204 columns
Presolve time: 0.02s
Presolved: 1864 rows, 2536 columns, 7912 nonzeros
Variable types: 0 continuous, 2536 integer (2536 binary)

Root relaxation: objective 0.000000e+00, 92 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 (92 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 -- 43

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:28 2012

Optimize a model with 968 rows, 1848 columns and 4452 nonzeros
Presolve removed 28 rows and 588 columns
Presolve time: 0.01s
Presolved: 940 rows, 1260 columns, 3864 nonzeros
Variable types: 0 continuous, 1260 integer (1260 binary)

Root relaxation: objective 0.000000e+00, 92 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 (92 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 -- 21

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:28 2012

Optimize a model with 506 rows, 902 columns and 2120 nonzeros
Presolve removed 28 rows and 280 columns
Presolve time: 0.00s
Presolved: 478 rows, 622 columns, 1840 nonzeros
Variable types: 0 continuous, 622 integer (622 binary)

Root relaxation: objective 0.000000e+00, 96 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 (96 simplex iterations) in 0.00 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 -- 10

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:28 2012

Optimize a model with 296 rows, 472 columns and 1060 nonzeros
Presolve removed 28 rows and 140 columns
Presolve time: 0.00s
Presolved: 268 rows, 332 columns, 920 nonzeros
Variable types: 0 continuous, 332 integer (332 binary)

Root relaxation: objective 0.000000e+00, 84 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 (84 simplex iterations) in 0.00 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 Sat Dec 15 16:14:28 2012

Optimize a model with 170 rows, 214 columns and 424 nonzeros
Presolve removed 104 rows and 141 columns
Presolve time: 0.00s
Presolved: 66 rows, 73 columns, 198 nonzeros
Variable types: 0 continuous, 73 integer (73 binary)

Root relaxation: objective 0.000000e+00, 27 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 (27 simplex iterations) in 0.00 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 -- 2

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:28 2012

Optimize a model with 128 rows, 128 columns and 212 nonzeros
Presolve removed 128 rows and 128 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 -


optimal solution found: number of colors: 2