current bounds on the number of colors: 0 -- 218 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:35:34 2012 Optimize a model with 29648 rows, 24032 columns and 112052 nonzeros Presolve removed 16 rows and 1744 columns Presolve time: 0.14s Presolved: 29632 rows, 22288 columns, 110308 nonzeros Variable types: 0 continuous, 22288 integer (22288 binary) Root relaxation: objective 0.000000e+00, 385 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 (385 simplex iterations) in 0.16 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 -- 109 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:35:35 2012 Optimize a model with 14798 rows, 12042 columns and 55512 nonzeros Presolve removed 16 rows and 864 columns Presolve time: 0.13s Presolved: 14782 rows, 11178 columns, 54648 nonzeros Variable types: 0 continuous, 11178 integer (11178 binary) Root relaxation: objective 0.000000e+00, 385 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 (385 simplex iterations) in 0.14 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 -- 54 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:35:35 2012 Optimize a model with 7508 rows, 6156 columns and 27756 nonzeros Presolve removed 16 rows and 432 columns Presolve time: 0.04s Presolved: 7492 rows, 5724 columns, 27324 nonzeros Variable types: 0 continuous, 5724 integer (5724 binary) Root relaxation: objective 0.000000e+00, 385 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 (385 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 -- 27 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:35:35 2012 Optimize a model with 3728 rows, 3104 columns and 13364 nonzeros Presolve removed 16 rows and 208 columns Presolve time: 0.02s Presolved: 3712 rows, 2896 columns, 13156 nonzeros Variable types: 0 continuous, 2896 integer (2896 binary) Root relaxation: objective 0.000000e+00, 390 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 (390 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 16:35:35 2012 Optimize a model with 1838 rows, 1578 columns and 6168 nonzeros Presolve removed 16 rows and 96 columns Presolve time: 0.01s Presolved: 1822 rows, 1482 columns, 6072 nonzeros Variable types: 0 continuous, 1482 integer (1482 binary) Root relaxation: objective 0.000000e+00, 378 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 (378 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 16:35:35 2012 Optimize a model with 1028 rows, 924 columns and 3084 nonzeros Presolve removed 16 rows and 48 columns Presolve time: 0.00s Presolved: 1012 rows, 876 columns, 3036 nonzeros Variable types: 0 continuous, 876 integer (876 binary) Root relaxation: objective 0.000000e+00, 400 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 (570 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 16:35:36 2012 Optimize a model with 488 rows, 488 columns and 1028 nonzeros Presolve removed 488 rows and 488 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 16:35:36 2012 Optimize a model with 758 rows, 706 columns and 2056 nonzeros Presolve removed 220 rows and 237 columns Presolve time: 0.00s Presolved: 538 rows, 469 columns, 1614 nonzeros Variable types: 0 continuous, 469 integer (469 binary) Root relaxation: objective 0.000000e+00, 228 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 0 200 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (751 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