current bounds on the number of colors: 0 -- 78

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:08 2012

Optimize a model with 1443 rows, 3077 columns and 7137 nonzeros
Presolve removed 35 rows and 1365 columns
Presolve time: 0.01s
Presolved: 1408 rows, 1712 columns, 5772 nonzeros
Variable types: 0 continuous, 1712 integer (1712 binary)

Root relaxation: objective 0.000000e+00, 73 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 (73 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 -- 39

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:09 2012

Optimize a model with 743 rows, 1517 columns and 3477 nonzeros
Presolve removed 35 rows and 665 columns
Presolve time: 0.00s
Presolved: 708 rows, 852 columns, 2812 nonzeros
Variable types: 0 continuous, 852 integer (852 binary)

Root relaxation: objective 0.000000e+00, 73 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 (73 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 -- 19

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:09 2012

Optimize a model with 393 rows, 737 columns and 1647 nonzeros
Presolve removed 35 rows and 315 columns
Presolve time: 0.00s
Presolved: 358 rows, 422 columns, 1332 nonzeros
Variable types: 0 continuous, 422 integer (422 binary)

Root relaxation: objective 0.000000e+00, 69 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 (69 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 16:14:09 2012

Optimize a model with 218 rows, 347 columns and 732 nonzeros
Presolve removed 35 rows and 140 columns
Presolve time: 0.00s
Presolved: 183 rows, 207 columns, 592 nonzeros
Variable types: 0 continuous, 207 integer (207 binary)

Root relaxation: objective 0.000000e+00, 63 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 (63 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 16:14:09 2012

Optimize a model with 148 rows, 191 columns and 366 nonzeros
Presolve removed 84 rows and 122 columns
Presolve time: 0.00s
Presolved: 64 rows, 69 columns, 192 nonzeros
Variable types: 0 continuous, 69 integer (69 binary)

Root relaxation: objective 0.000000e+00, 31 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 (31 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 16:14:09 2012

Optimize a model with 113 rows, 113 columns and 183 nonzeros
Presolve removed 113 rows and 113 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