current bounds on the number of colors: 0 -- 31
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:43 2012
Optimize a model with 781 rows, 515 columns and 2715 nonzeros
Presolve time: 0.00s
Presolved: 781 rows, 515 columns, 2715 nonzeros
Variable types: 0 continuous, 515 integer (515 binary)
Root relaxation: objective 0.000000e+00, 65 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 (110 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 -- 15
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:35:43 2012
Optimize a model with 381 rows, 267 columns and 1267 nonzeros
Presolve time: 0.00s
Presolved: 381 rows, 267 columns, 1267 nonzeros
Variable types: 0 continuous, 267 integer (267 binary)
Root relaxation: objective 0.000000e+00, 60 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 (60 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 Thu Dec 13 19:35:43 2012
Optimize a model with 181 rows, 143 columns and 543 nonzeros
Presolve time: 0.00s
Presolved: 181 rows, 143 columns, 543 nonzeros
Variable types: 0 continuous, 143 integer (143 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 (131 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 Thu Dec 13 19:35:43 2012
Optimize a model with 81 rows, 81 columns and 181 nonzeros
Presolve removed 81 rows and 81 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 Thu Dec 13 19:35:43 2012
Optimize a model with 131 rows, 112 columns and 362 nonzeros
Presolve removed 31 rows and 31 columns
Presolve time: 0.00s
Presolved: 100 rows, 81 columns, 300 nonzeros
Variable types: 0 continuous, 81 integer (81 binary)
Root relaxation: objective 0.000000e+00, 36 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 31 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (97 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 -
optimal solution found: number of colors: 3