current bounds on the number of colors: 0 -- 218

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:35:28 2012

Optimize a model with 26378 rows, 24002 columns and 102242 nonzeros
Presolve removed 23 rows and 2507 columns
Presolve time: 0.14s
Presolved: 26355 rows, 21495 columns, 99735 nonzeros
Variable types: 0 continuous, 21495 integer (21495 binary)

Root relaxation: objective 0.000000e+00, 369 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 (369 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 -- 109

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:35:29 2012

Optimize a model with 13178 rows, 12012 columns and 50652 nonzeros
Presolve removed 23 rows and 1242 columns
Presolve time: 0.12s
Presolved: 13155 rows, 10770 columns, 49410 nonzeros
Variable types: 0 continuous, 10770 integer (10770 binary)

Root relaxation: objective 0.000000e+00, 361 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 (361 simplex iterations) in 0.14 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 -- 54

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:35:29 2012

Optimize a model with 6698 rows, 6126 columns and 25326 nonzeros
Presolve removed 23 rows and 621 columns
Presolve time: 0.04s
Presolved: 6675 rows, 5505 columns, 24705 nonzeros
Variable types: 0 continuous, 5505 integer (5505 binary)

Root relaxation: objective 0.000000e+00, 366 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 (366 simplex iterations) in 0.05 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 -- 27

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:35:29 2012

Optimize a model with 3338 rows, 3074 columns and 12194 nonzeros
Presolve removed 23 rows and 299 columns
Presolve time: 0.01s
Presolved: 3315 rows, 2775 columns, 11895 nonzeros
Variable types: 0 continuous, 2775 integer (2775 binary)

Root relaxation: objective 0.000000e+00, 365 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 (365 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 -- 13

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:35:29 2012

Optimize a model with 1658 rows, 1548 columns and 5628 nonzeros
Presolve removed 23 rows and 138 columns
Presolve time: 0.01s
Presolved: 1635 rows, 1410 columns, 5490 nonzeros
Variable types: 0 continuous, 1410 integer (1410 binary)

Root relaxation: objective 0.000000e+00, 356 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 (356 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 -- 6

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:35:29 2012

Optimize a model with 938 rows, 894 columns and 2814 nonzeros
Presolve removed 23 rows and 69 columns
Presolve time: 0.00s
Presolved: 915 rows, 825 columns, 2745 nonzeros
Variable types: 0 continuous, 825 integer (825 binary)

Root relaxation: objective 0.000000e+00, 365 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 (514 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 16:35:29 2012

Optimize a model with 458 rows, 458 columns and 938 nonzeros
Presolve removed 458 rows and 458 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 16:35:29 2012

Optimize a model with 698 rows, 676 columns and 1876 nonzeros
Presolve removed 224 rows and 250 columns
Presolve time: 0.00s
Presolved: 474 rows, 426 columns, 1422 nonzeros
Variable types: 0 continuous, 426 integer (426 binary)

Root relaxation: objective 0.000000e+00, 211 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  176          -    0.00000     -      -    0s
     0     0 infeasible    0               -    0.10000     -      -    0s

Explored 0 nodes (699 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