current bounds on the number of colors: 0 -- 214 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:34:08 2012 Optimize a model with 24610 rows, 23126 columns and 96086 nonzeros Presolve removed 26 rows and 2782 columns Presolve time: 0.13s Presolved: 24584 rows, 20344 columns, 93304 nonzeros Variable types: 0 continuous, 20344 integer (20344 binary) Root relaxation: objective 0.000000e+00, 337 iterations, 0.01 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 (337 simplex iterations) in 0.15 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 -- 107 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:34:08 2012 Optimize a model with 12298 rows, 11570 columns and 47594 nonzeros Presolve removed 26 rows and 1378 columns Presolve time: 0.12s Presolved: 12272 rows, 10192 columns, 46216 nonzeros Variable types: 0 continuous, 10192 integer (10192 binary) Root relaxation: objective 0.000000e+00, 337 iterations, 0.01 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 (337 simplex iterations) in 0.13 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 -- 53 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:34:09 2012 Optimize a model with 6142 rows, 5792 columns and 23348 nonzeros Presolve removed 26 rows and 676 columns Presolve time: 0.04s Presolved: 6116 rows, 5116 columns, 22672 nonzeros Variable types: 0 continuous, 5116 integer (5116 binary) Root relaxation: objective 0.000000e+00, 333 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 (333 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 -- 26 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:34:09 2012 Optimize a model with 3178 rows, 3010 columns and 11674 nonzeros Presolve removed 26 rows and 338 columns Presolve time: 0.01s Presolved: 3152 rows, 2672 columns, 11336 nonzeros Variable types: 0 continuous, 2672 integer (2672 binary) Root relaxation: objective 0.000000e+00, 348 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 (523 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 -- 13 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:34:09 2012 Optimize a model with 1582 rows, 1512 columns and 5388 nonzeros Presolve removed 26 rows and 156 columns Presolve time: 0.01s Presolved: 1556 rows, 1356 columns, 5232 nonzeros Variable types: 0 continuous, 1356 integer (1356 binary) Root relaxation: objective 0.000000e+00, 344 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 (344 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 -- 6 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:34:09 2012 Optimize a model with 898 rows, 870 columns and 2694 nonzeros Presolve removed 26 rows and 78 columns Presolve time: 0.00s Presolved: 872 rows, 792 columns, 2616 nonzeros Variable types: 0 continuous, 792 integer (792 binary) Root relaxation: objective 0.000000e+00, 335 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 (465 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 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:34:09 2012 Optimize a model with 442 rows, 442 columns and 898 nonzeros Presolve removed 442 rows and 442 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 16:34:09 2012 Optimize a model with 670 rows, 656 columns and 1796 nonzeros Presolve removed 220 rows and 249 columns Presolve time: 0.00s Presolved: 450 rows, 407 columns, 1350 nonzeros Variable types: 0 continuous, 407 integer (407 binary) Root relaxation: objective 0.000000e+00, 216 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 0 182 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (692 simplex iterations) in 0.01 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