current bounds on the number of colors: 0 -- 44

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:13 2012

Optimize a model with 330 rows, 981 columns and 1826 nonzeros
Presolve removed 26 rows and 572 columns
Presolve time: 0.00s
Presolved: 304 rows, 409 columns, 1254 nonzeros
Variable types: 0 continuous, 409 integer (409 binary)

Root relaxation: objective 0.000000e+00, 29 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 (29 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 -- 22

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:13 2012

Optimize a model with 187 rows, 497 columns and 913 nonzeros
Presolve removed 26 rows and 286 columns
Presolve time: 0.00s
Presolved: 161 rows, 211 columns, 627 nonzeros
Variable types: 0 continuous, 211 integer (211 binary)

Root relaxation: objective 0.000000e+00, 29 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 (29 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 -- 11

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:13 2012

Optimize a model with 109 rows, 233 columns and 415 nonzeros
Presolve removed 26 rows and 130 columns
Presolve time: 0.00s
Presolved: 83 rows, 103 columns, 285 nonzeros
Variable types: 0 continuous, 103 integer (103 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 -- 5

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:13 2012

Optimize a model with 70 rows, 101 columns and 166 nonzeros
Presolve removed 50 rows and 79 columns
Presolve time: 0.00s
Presolved: 20 rows, 22 columns, 60 nonzeros
Variable types: 0 continuous, 22 integer (22 binary)

Root relaxation: objective 0.000000e+00, 8 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 (8 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 16:13:13 2012

Optimize a model with 57 rows, 57 columns and 83 nonzeros
Presolve removed 57 rows and 57 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