current bounds on the number of colors: 0 -- 37

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:05 2012

Optimize a model with 163 rows, 673 columns and 1044 nonzeros
Presolve removed 25 rows and 450 columns
Presolve time: 0.00s
Presolved: 138 rows, 223 columns, 594 nonzeros
Variable types: 0 continuous, 223 integer (223 binary)

Root relaxation: objective 0.000000e+00, 19 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 (19 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 -- 18

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:05 2012

Optimize a model with 100 rows, 340 columns and 522 nonzeros
Presolve removed 25 rows and 225 columns
Presolve time: 0.00s
Presolved: 75 rows, 115 columns, 297 nonzeros
Variable types: 0 continuous, 115 integer (115 binary)

Root relaxation: objective 0.000000e+00, 19 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 (19 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 -- 9

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:05 2012

Optimize a model with 65 rows, 155 columns and 232 nonzeros
Presolve removed 25 rows and 100 columns
Presolve time: 0.00s
Presolved: 40 rows, 55 columns, 132 nonzeros
Variable types: 0 continuous, 55 integer (55 binary)

Root relaxation: objective 0.000000e+00, 18 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 (18 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 -- 4

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:05 2012

Optimize a model with 51 rows, 81 columns and 116 nonzeros
Presolve removed 43 rows and 71 columns
Presolve time: 0.00s
Presolved: 8 rows, 10 columns, 24 nonzeros
Variable types: 0 continuous, 10 integer (10 binary)

Root relaxation: objective 0.000000e+00, 4 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 (4 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 16:13:05 2012

Optimize a model with 44 rows, 44 columns and 58 nonzeros
Presolve removed 44 rows and 44 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