current bounds on the number of colors: 0 -- 90

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:39 2012

Optimize a model with 2160 rows, 4096 columns and 10260 nonzeros
Presolve removed 32 rows and 1440 columns
Presolve time: 0.02s
Presolved: 2128 rows, 2656 columns, 8820 nonzeros
Variable types: 0 continuous, 2656 integer (2656 binary)

Root relaxation: objective 0.000000e+00, 98 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 (98 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 -- 45

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:39 2012

Optimize a model with 1102 rows, 2026 columns and 5016 nonzeros
Presolve removed 32 rows and 704 columns
Presolve time: 0.01s
Presolved: 1070 rows, 1322 columns, 4312 nonzeros
Variable types: 0 continuous, 1322 integer (1322 binary)

Root relaxation: objective 0.000000e+00, 97 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 (97 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 -- 22

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:39 2012

Optimize a model with 596 rows, 1036 columns and 2508 nonzeros
Presolve removed 32 rows and 352 columns
Presolve time: 0.00s
Presolved: 564 rows, 684 columns, 2156 nonzeros
Variable types: 0 continuous, 684 integer (684 binary)

Root relaxation: objective 0.000000e+00, 95 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 (95 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 -- 11

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:39 2012

Optimize a model with 320 rows, 496 columns and 1140 nonzeros
Presolve removed 32 rows and 160 columns
Presolve time: 0.00s
Presolved: 288 rows, 336 columns, 980 nonzeros
Variable types: 0 continuous, 336 integer (336 binary)

Root relaxation: objective 0.000000e+00, 88 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 (88 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 -- 5

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:14:39 2012

Optimize a model with 182 rows, 226 columns and 456 nonzeros
Presolve removed 106 rows and 146 columns
Presolve time: 0.00s
Presolved: 76 rows, 80 columns, 228 nonzeros
Variable types: 0 continuous, 80 integer (80 binary)

Root relaxation: objective 0.000000e+00, 35 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 (35 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 16:14:39 2012

Optimize a model with 136 rows, 136 columns and 228 nonzeros
Presolve removed 136 rows and 136 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