current bounds on the number of colors: 0 -- 63
Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:40 2012
Optimize a model with 838 rows, 1978 columns and 4278 nonzeros
Presolve removed 31 rows and 961 columns
Presolve time: 0.01s
Presolved: 807 rows, 1017 columns, 3317 nonzeros
Variable types: 0 continuous, 1017 integer (1017 binary)
Root relaxation: objective 0.000000e+00, 52 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 (52 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 -- 31
Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:40 2012
Optimize a model with 438 rows, 970 columns and 2070 nonzeros
Presolve removed 31 rows and 465 columns
Presolve time: 0.00s
Presolved: 407 rows, 505 columns, 1605 nonzeros
Variable types: 0 continuous, 505 integer (505 binary)
Root relaxation: objective 0.000000e+00, 52 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 (52 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 -- 15
Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:40 2012
Optimize a model with 238 rows, 466 columns and 966 nonzeros
Presolve removed 31 rows and 217 columns
Presolve time: 0.00s
Presolved: 207 rows, 249 columns, 749 nonzeros
Variable types: 0 continuous, 249 integer (249 binary)
Root relaxation: objective 0.000000e+00, 52 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 (52 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 -- 7
Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:40 2012
Optimize a model with 138 rows, 214 columns and 414 nonzeros
Presolve removed 31 rows and 93 columns
Presolve time: 0.00s
Presolved: 107 rows, 121 columns, 321 nonzeros
Variable types: 0 continuous, 121 integer (121 binary)
Root relaxation: objective 0.000000e+00, 43 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 (43 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 -- 3
Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:13:40 2012
Optimize a model with 88 rows, 88 columns and 138 nonzeros
Presolve removed 88 rows and 88 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 16:13:40 2012
Optimize a model with 113 rows, 151 columns and 276 nonzeros
Presolve removed 67 rows and 100 columns
Presolve time: 0.00s
Presolved: 46 rows, 51 columns, 138 nonzeros
Variable types: 0 continuous, 51 integer (51 binary)
Root relaxation: objective 0.000000e+00, 18 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 (18 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: 2