current bounds on the number of colors: 0 -- 43
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:36:00 2012
Optimize a model with 2101 rows, 1001 columns and 7077 nonzeros
Presolve time: 0.01s
Presolved: 2101 rows, 1001 columns, 7077 nonzeros
Variable types: 0 continuous, 1001 integer (1001 binary)
Root relaxation: objective 0.000000e+00, 103 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 (103 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 -- 21
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:36:00 2012
Optimize a model with 1023 rows, 528 columns and 3370 nonzeros
Presolve time: 0.00s
Presolved: 1023 rows, 528 columns, 3370 nonzeros
Variable types: 0 continuous, 528 integer (528 binary)
Root relaxation: objective 0.000000e+00, 90 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 (151 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 -- 10
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:36:01 2012
Optimize a model with 533 rows, 313 columns and 1685 nonzeros
Presolve time: 0.00s
Presolved: 533 rows, 313 columns, 1685 nonzeros
Variable types: 0 continuous, 313 integer (313 binary)
Root relaxation: objective 0.000000e+00, 93 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 (214 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 Thu Dec 13 19:36:01 2012
Optimize a model with 239 rows, 184 columns and 674 nonzeros
Presolve removed 43 rows and 43 columns
Presolve time: 0.00s
Presolved: 196 rows, 141 columns, 588 nonzeros
Variable types: 0 continuous, 141 integer (141 binary)
Root relaxation: objective 0.000000e+00, 46 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 43 - 0.00000 - - 0s
Explored 0 nodes (185 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 -- 5
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:36:01 2012
Optimize a model with 337 rows, 227 columns and 1011 nonzeros
Presolve time: 0.00s
Presolved: 337 rows, 227 columns, 1011 nonzeros
Variable types: 0 continuous, 227 integer (227 binary)
Root relaxation: objective 0.000000e+00, 99 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 78 - 0.00000 - - 0s
0 0 0.00000 0 72 - 0.00000 - - 0s
0 0 0.00000 0 66 - 0.00000 - - 0s
0 0 0.00000 0 74 - 0.00000 - - 0s
0 0 0.00000 0 80 - 0.00000 - - 0s
0 0 0.00000 0 80 - 0.00000 - - 0s
0 0 0.00000 0 80 - 0.00000 - - 0s
0 2 0.00000 0 80 - 0.00000 - - 0s
Cutting planes:
Zero half: 4
Explored 4 nodes (1540 simplex iterations) in 0.08 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: 3 -- 5
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:36:01 2012
Optimize a model with 435 rows, 270 columns and 1348 nonzeros
Presolve time: 0.00s
Presolved: 435 rows, 270 columns, 1348 nonzeros
Variable types: 0 continuous, 270 integer (270 binary)
Root relaxation: objective 0.000000e+00, 96 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 18 - 0.00000 - - 0s
H 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (335 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%
optimal solution found: number of colors: 4