current bounds on the number of colors: 0 -- 60
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:37:04 2012
Optimize a model with 5850 rows, 1993 columns and 19170 nonzeros
Presolve removed 1 rows and 30 columns
Presolve time: 0.03s
Presolved: 5849 rows, 1963 columns, 19140 nonzeros
Variable types: 0 continuous, 1963 integer (1963 binary)
Root relaxation: objective 0.000000e+00, 150 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 (293 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 -- 30
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:37:04 2012
Optimize a model with 2955 rows, 1093 columns and 9585 nonzeros
Presolve removed 1 rows and 15 columns
Presolve time: 0.01s
Presolved: 2954 rows, 1078 columns, 9570 nonzeros
Variable types: 0 continuous, 1078 integer (1078 binary)
Root relaxation: objective 0.000000e+00, 119 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 (211 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 -- 15
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:37:04 2012
Optimize a model with 1411 rows, 613 columns and 4473 nonzeros
Presolve removed 1 rows and 7 columns
Presolve time: 0.00s
Presolved: 1410 rows, 606 columns, 4466 nonzeros
Variable types: 0 continuous, 606 integer (606 binary)
Root relaxation: objective 0.000000e+00, 134 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 (246 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 -- 7
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:37:04 2012
Optimize a model with 639 rows, 373 columns and 1917 nonzeros
Presolve removed 1 rows and 3 columns
Presolve time: 0.00s
Presolved: 638 rows, 370 columns, 1914 nonzeros
Variable types: 0 continuous, 370 integer (370 binary)
Root relaxation: objective 0.000000e+00, 145 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 0 110 - 0.00000 - - 0s
0 0 0.00000 0 112 - 0.00000 - - 0s
0 0 0.00000 0 159 - 0.00000 - - 0s
0 0 infeasible 0 - 0.10000 - - 0s
Cutting planes:
Gomory: 4
Zero half: 195
Explored 0 nodes (1628 simplex iterations) in 0.08 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: 3 -- 7
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:37:04 2012
Optimize a model with 1025 rows, 493 columns and 3195 nonzeros
Presolve removed 1 rows and 5 columns
Presolve time: 0.00s
Presolved: 1024 rows, 488 columns, 3190 nonzeros
Variable types: 0 continuous, 488 integer (488 binary)
Root relaxation: objective 0.000000e+00, 128 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 (239 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: 3 -- 5
Gurobi 5.0.1 (linux64) logging started Thu Dec 13 19:37:04 2012
Optimize a model with 832 rows, 433 columns and 2556 nonzeros
Presolve removed 1 rows and 4 columns
Presolve time: 0.00s
Presolved: 831 rows, 429 columns, 2552 nonzeros
Variable types: 0 continuous, 429 integer (429 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 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (669 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%
optimal solution found: number of colors: 4