current bounds on the number of colors: 0 -- 240

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:59 2012

Optimize a model with 34800 rows, 29088 columns and 132480 nonzeros
Presolve removed 19 rows and 2280 columns
Presolve time: 0.15s
Presolved: 34781 rows, 26808 columns, 130200 nonzeros
Variable types: 0 continuous, 26808 integer (26808 binary)

Root relaxation: objective 0.000000e+00, 426 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 (426 simplex iterations) in 0.19 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 -- 120

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:44:00 2012

Optimize a model with 17520 rows, 14688 columns and 66240 nonzeros
Presolve removed 19 rows and 1140 columns
Presolve time: 0.13s
Presolved: 17501 rows, 13548 columns, 65100 nonzeros
Variable types: 0 continuous, 13548 integer (13548 binary)

Root relaxation: objective 0.000000e+00, 431 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 (670 simplex iterations) in 0.16 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 -- 60

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:44:00 2012

Optimize a model with 8880 rows, 7488 columns and 33120 nonzeros
Presolve removed 19 rows and 570 columns
Presolve time: 0.06s
Presolved: 8861 rows, 6918 columns, 32550 nonzeros
Variable types: 0 continuous, 6918 integer (6918 binary)

Root relaxation: objective 0.000000e+00, 427 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 (427 simplex iterations) in 0.07 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 -- 30

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:44:01 2012

Optimize a model with 4560 rows, 3888 columns and 16560 nonzeros
Presolve removed 19 rows and 285 columns
Presolve time: 0.02s
Presolved: 4541 rows, 3603 columns, 16275 nonzeros
Variable types: 0 continuous, 3603 integer (3603 binary)

Root relaxation: objective 0.000000e+00, 437 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 (683 simplex iterations) in 0.03 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 -- 15

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:44:01 2012

Optimize a model with 2256 rows, 1968 columns and 7728 nonzeros
Presolve removed 19 rows and 133 columns
Presolve time: 0.01s
Presolved: 2237 rows, 1835 columns, 7595 nonzeros
Variable types: 0 continuous, 1835 integer (1835 binary)

Root relaxation: objective 0.000000e+00, 404 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 (404 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 16:44:01 2012

Optimize a model with 1104 rows, 1008 columns and 3312 nonzeros
Presolve removed 19 rows and 57 columns
Presolve time: 0.00s
Presolved: 1085 rows, 951 columns, 3255 nonzeros
Variable types: 0 continuous, 951 integer (951 binary)

Root relaxation: objective 0.000000e+00, 434 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 (613 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 16:44:01 2012

Optimize a model with 528 rows, 528 columns and 1104 nonzeros
Presolve removed 528 rows and 528 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 16:44:01 2012

Optimize a model with 816 rows, 768 columns and 2208 nonzeros
Presolve removed 242 rows and 262 columns
Presolve time: 0.00s
Presolved: 574 rows, 506 columns, 1722 nonzeros
Variable types: 0 continuous, 506 integer (506 binary)

Root relaxation: objective 0.000000e+00, 249 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  219          -    0.00000     -      -    0s
     0     0 infeasible    0               -    0.10000     -      -    0s

Explored 0 nodes (822 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