current bounds on the number of colors: 0 -- 73

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:57 2012

Optimize a model with 1261 rows, 2661 columns and 6192 nonzeros
Presolve removed 26 rows and 936 columns
Presolve time: 0.01s
Presolved: 1235 rows, 1725 columns, 5256 nonzeros
Variable types: 0 continuous, 1725 integer (1725 binary)

Root relaxation: objective 0.000000e+00, 75 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 (75 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 -- 36

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:57 2012

Optimize a model with 667 rows, 1347 columns and 3096 nonzeros
Presolve removed 26 rows and 468 columns
Presolve time: 0.00s
Presolved: 641 rows, 879 columns, 2628 nonzeros
Variable types: 0 continuous, 879 integer (879 binary)

Root relaxation: objective 0.000000e+00, 75 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 (75 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 -- 18

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:57 2012

Optimize a model with 370 rows, 690 columns and 1548 nonzeros
Presolve removed 26 rows and 234 columns
Presolve time: 0.00s
Presolved: 344 rows, 456 columns, 1314 nonzeros
Variable types: 0 continuous, 456 integer (456 binary)

Root relaxation: objective 0.000000e+00, 76 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 (76 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 16:13:57 2012

Optimize a model with 205 rows, 325 columns and 688 nonzeros
Presolve removed 26 rows and 104 columns
Presolve time: 0.00s
Presolved: 179 rows, 221 columns, 584 nonzeros
Variable types: 0 continuous, 221 integer (221 binary)

Root relaxation: objective 0.000000e+00, 68 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 (68 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 16:13:57 2012

Optimize a model with 139 rows, 179 columns and 344 nonzeros
Presolve removed 87 rows and 120 columns
Presolve time: 0.00s
Presolved: 52 rows, 59 columns, 156 nonzeros
Variable types: 0 continuous, 59 integer (59 binary)

Root relaxation: objective 0.000000e+00, 24 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 (24 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 16:13:57 2012

Optimize a model with 106 rows, 106 columns and 172 nonzeros
Presolve removed 106 rows and 106 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