current bounds on the number of colors: 0 -- 151

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:00 2012

Optimize a model with 9826 rows, 11454 columns and 40350 nonzeros
Presolve removed 32 rows and 2400 columns
Presolve time: 0.11s
Presolved: 9794 rows, 9054 columns, 37950 nonzeros
Variable types: 0 continuous, 9054 integer (9054 binary)

Root relaxation: objective 0.000000e+00, 210 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 (210 simplex iterations) in 0.12 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 -- 75

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:00 2012

Optimize a model with 4924 rows, 5716 columns and 19906 nonzeros
Presolve removed 32 rows and 1184 columns
Presolve time: 0.04s
Presolved: 4892 rows, 4532 columns, 18722 nonzeros
Variable types: 0 continuous, 4532 integer (4532 binary)

Root relaxation: objective 0.000000e+00, 208 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 (208 simplex iterations) in 0.04 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 -- 37

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:01 2012

Optimize a model with 2473 rows, 2847 columns and 9684 nonzeros
Presolve removed 32 rows and 576 columns
Presolve time: 0.01s
Presolved: 2441 rows, 2271 columns, 9108 nonzeros
Variable types: 0 continuous, 2271 integer (2271 binary)

Root relaxation: objective 0.000000e+00, 210 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 (210 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 -- 18

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:01 2012

Optimize a model with 1312 rows, 1488 columns and 4842 nonzeros
Presolve removed 32 rows and 288 columns
Presolve time: 0.01s
Presolved: 1280 rows, 1200 columns, 4554 nonzeros
Variable types: 0 continuous, 1200 integer (1200 binary)

Root relaxation: objective 0.000000e+00, 208 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 (208 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 -- 9

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:01 2012

Optimize a model with 667 rows, 733 columns and 2152 nonzeros
Presolve removed 32 rows and 128 columns
Presolve time: 0.00s
Presolved: 635 rows, 605 columns, 2024 nonzeros
Variable types: 0 continuous, 605 integer (605 binary)

Root relaxation: objective 0.000000e+00, 179 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 (179 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 16:20:01 2012

Optimize a model with 409 rows, 431 columns and 1076 nonzeros
Presolve removed 159 rows and 195 columns
Presolve time: 0.00s
Presolved: 250 rows, 236 columns, 750 nonzeros
Variable types: 0 continuous, 236 integer (236 binary)

Root relaxation: objective 0.000000e+00, 133 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  111          -    0.00000     -      -    0s

Explored 0 nodes (402 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Model objective exceeds cutoff
Best objective -, best bound 1.000000000000e+00, gap -


current bounds on the number of colors: 2 -- 4

Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:01 2012

Optimize a model with 538 rows, 582 columns and 1614 nonzeros
Presolve removed 32 rows and 96 columns
Presolve time: 0.00s
Presolved: 506 rows, 486 columns, 1518 nonzeros
Variable types: 0 continuous, 486 integer (486 binary)

Root relaxation: objective 0.000000e+00, 176 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 (176 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%


optimal solution found: number of colors: 3