current bounds on the number of colors: 0 -- 68

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:47 2012

Optimize a model with 1020 rows, 2340 columns and 5168 nonzeros
Presolve removed 29 rows and 986 columns
Presolve time: 0.01s
Presolved: 991 rows, 1354 columns, 4182 nonzeros
Variable types: 0 continuous, 1354 integer (1354 binary)

Root relaxation: objective 0.000000e+00, 66 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 (66 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 -- 34

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:47 2012

Optimize a model with 544 rows, 1184 columns and 2584 nonzeros
Presolve removed 29 rows and 493 columns
Presolve time: 0.00s
Presolved: 515 rows, 691 columns, 2091 nonzeros
Variable types: 0 continuous, 691 integer (691 binary)

Root relaxation: objective 0.000000e+00, 66 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 (66 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 -- 17

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:47 2012

Optimize a model with 292 rows, 572 columns and 1216 nonzeros
Presolve removed 29 rows and 232 columns
Presolve time: 0.00s
Presolved: 263 rows, 340 columns, 984 nonzeros
Variable types: 0 continuous, 340 integer (340 binary)

Root relaxation: objective 0.000000e+00, 59 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 (59 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 -- 8

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:47 2012

Optimize a model with 180 rows, 300 columns and 608 nonzeros
Presolve removed 29 rows and 116 columns
Presolve time: 0.00s
Presolved: 151 rows, 184 columns, 492 nonzeros
Variable types: 0 continuous, 184 integer (184 binary)

Root relaxation: objective 0.000000e+00, 53 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 (53 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 16:13:47 2012

Optimize a model with 124 rows, 164 columns and 304 nonzeros
Presolve removed 80 rows and 115 columns
Presolve time: 0.00s
Presolved: 44 rows, 49 columns, 132 nonzeros
Variable types: 0 continuous, 49 integer (49 binary)

Root relaxation: objective 0.000000e+00, 21 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 (21 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 16:13:47 2012

Optimize a model with 96 rows, 96 columns and 152 nonzeros
Presolve removed 96 rows and 96 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