current bounds on the number of colors: 0 -- 238 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:19 2012 Optimize a model with 32963 rows, 28597 columns and 126497 nonzeros Presolve removed 18 rows and 2142 columns Presolve time: 0.15s Presolved: 32945 rows, 26455 columns, 124355 nonzeros Variable types: 0 continuous, 26455 integer (26455 binary) Root relaxation: objective 0.000000e+00, 398 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 (398 simplex iterations) in 0.18 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 -- 119 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:19 2012 Optimize a model with 16463 rows, 14317 columns and 62717 nonzeros Presolve removed 18 rows and 1062 columns Presolve time: 0.12s Presolved: 16445 rows, 13255 columns, 61655 nonzeros Variable types: 0 continuous, 13255 integer (13255 binary) Root relaxation: objective 0.000000e+00, 398 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 (398 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 -- 59 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:20 2012 Optimize a model with 8213 rows, 7177 columns and 30827 nonzeros Presolve removed 18 rows and 522 columns Presolve time: 0.05s Presolved: 8195 rows, 6655 columns, 30305 nonzeros Variable types: 0 continuous, 6655 integer (6655 binary) Root relaxation: objective 0.000000e+00, 399 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 (399 simplex iterations) in 0.06 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 -- 29 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:20 2012 Optimize a model with 4088 rows, 3607 columns and 14882 nonzeros Presolve removed 18 rows and 252 columns Presolve time: 0.02s Presolved: 4070 rows, 3355 columns, 14630 nonzeros Variable types: 0 continuous, 3355 integer (3355 binary) Root relaxation: objective 0.000000e+00, 417 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 (417 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 -- 14 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:43:20 2012 Optimize a model with 2163 rows, 1941 columns and 7441 nonzeros Presolve removed 18 rows and 126 columns Presolve time: 0.01s Presolved: 2145 rows, 1815 columns, 7315 nonzeros Variable types: 0 continuous, 1815 integer (1815 binary) Root relaxation: objective 0.000000e+00, 396 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 (396 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 Sat Dec 15 16:43:20 2012 Optimize a model with 1063 rows, 989 columns and 3189 nonzeros Presolve removed 18 rows and 54 columns Presolve time: 0.00s Presolved: 1045 rows, 935 columns, 3135 nonzeros Variable types: 0 continuous, 935 integer (935 binary) Root relaxation: objective 0.000000e+00, 420 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 (575 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 16:43:20 2012 Optimize a model with 513 rows, 513 columns and 1063 nonzeros Presolve removed 513 rows and 513 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 16:43:20 2012 Optimize a model with 788 rows, 751 columns and 2126 nonzeros Presolve removed 240 rows and 259 columns Presolve time: 0.00s Presolved: 548 rows, 492 columns, 1644 nonzeros Variable types: 0 continuous, 492 integer (492 binary) Root relaxation: objective 0.000000e+00, 240 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 0 215 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (789 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