current bounds on the number of colors: 0 -- 55
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:02 2012
Optimize a model with 1999 rows, 1557 columns and 7317 nonzeros
Presolve removed 5 rows and 135 columns
Presolve time: 0.01s
Presolved: 1994 rows, 1422 columns, 7182 nonzeros
Variable types: 0 continuous, 1422 integer (1422 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 (151 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 -- 27
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:02 2012
Optimize a model with 991 rows, 787 columns and 3523 nonzeros
Presolve removed 5 rows and 65 columns
Presolve time: 0.00s
Presolved: 986 rows, 722 columns, 3458 nonzeros
Variable types: 0 continuous, 722 integer (722 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 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (185 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 -- 13
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:02 2012
Optimize a model with 487 rows, 402 columns and 1626 nonzeros
Presolve removed 5 rows and 30 columns
Presolve time: 0.00s
Presolved: 482 rows, 372 columns, 1596 nonzeros
Variable types: 0 continuous, 372 integer (372 binary)
Root relaxation: objective 0.000000e+00, 107 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 (158 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 -- 6
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:20:02 2012
Optimize a model with 271 rows, 237 columns and 813 nonzeros
Presolve removed 5 rows and 15 columns
Presolve time: 0.00s
Presolved: 266 rows, 222 columns, 798 nonzeros
Variable types: 0 continuous, 222 integer (222 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 0.00 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 Fri Dec 14 18:20:02 2012
Optimize a model with 127 rows, 127 columns and 271 nonzeros
Presolve removed 127 rows and 127 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 Fri Dec 14 18:20:02 2012
Optimize a model with 199 rows, 182 columns and 542 nonzeros
Presolve removed 55 rows and 60 columns
Presolve time: 0.00s
Presolved: 144 rows, 122 columns, 432 nonzeros
Variable types: 0 continuous, 122 integer (122 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 0.00000 0 50 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Explored 0 nodes (187 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