current bounds on the number of colors: 0 -- 212 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:44 2012 Optimize a model with 25652 rows, 22712 columns and 98792 nonzeros Presolve removed 16 rows and 1696 columns Presolve time: 0.13s Presolved: 25636 rows, 21016 columns, 97096 nonzeros Variable types: 0 continuous, 21016 integer (21016 binary) Root relaxation: objective 0.000000e+00, 357 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 (357 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 -- 106 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:33:45 2012 Optimize a model with 12932 rows, 11476 columns and 49396 nonzeros Presolve removed 16 rows and 848 columns Presolve time: 0.12s Presolved: 12916 rows, 10628 columns, 48548 nonzeros Variable types: 0 continuous, 10628 integer (10628 binary) Root relaxation: objective 0.000000e+00, 357 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 (357 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 16:33:45 2012 Optimize a model with 6452 rows, 5752 columns and 24232 nonzeros Presolve removed 16 rows and 416 columns Presolve time: 0.04s Presolved: 6436 rows, 5336 columns, 23816 nonzeros Variable types: 0 continuous, 5336 integer (5336 binary) Root relaxation: objective 0.000000e+00, 356 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 (356 simplex iterations) in 0.05 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 16:33:45 2012 Optimize a model with 3332 rows, 2996 columns and 12116 nonzeros Presolve removed 16 rows and 208 columns Presolve time: 0.01s Presolved: 3316 rows, 2788 columns, 11908 nonzeros Variable types: 0 continuous, 2788 integer (2788 binary) Root relaxation: objective 0.000000e+00, 369 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 (564 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 16:33:45 2012 Optimize a model with 1652 rows, 1512 columns and 5592 nonzeros Presolve removed 16 rows and 96 columns Presolve time: 0.01s Presolved: 1636 rows, 1416 columns, 5496 nonzeros Variable types: 0 continuous, 1416 integer (1416 binary) Root relaxation: objective 0.000000e+00, 351 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 (351 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 16:33:46 2012 Optimize a model with 932 rows, 876 columns and 2796 nonzeros Presolve removed 16 rows and 48 columns Presolve time: 0.00s Presolved: 916 rows, 828 columns, 2748 nonzeros Variable types: 0 continuous, 828 integer (828 binary) Root relaxation: objective 0.000000e+00, 341 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 (341 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 Sat Dec 15 16:33:46 2012 Optimize a model with 452 rows, 452 columns and 932 nonzeros Presolve removed 452 rows and 452 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 16:33:46 2012 Optimize a model with 692 rows, 664 columns and 1864 nonzeros Presolve removed 212 rows and 228 columns Presolve time: 0.00s Presolved: 480 rows, 436 columns, 1440 nonzeros Variable types: 0 continuous, 436 integer (436 binary) Root relaxation: objective 0.000000e+00, 227 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 0 193 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (734 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