current bounds on the number of colors: 0 -- 219 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:36:05 2012 Optimize a model with 28232 rows, 24128 columns and 107910 nonzeros Presolve removed 16 rows and 1744 columns Presolve time: 0.14s Presolved: 28216 rows, 22384 columns, 106166 nonzeros Variable types: 0 continuous, 22384 integer (22384 binary) Root relaxation: objective 0.000000e+00, 397 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 (603 simplex iterations) in 0.20 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 16:36:06 2012 Optimize a model with 14097 rows, 12083 columns and 53460 nonzeros Presolve removed 16 rows and 864 columns Presolve time: 0.13s Presolved: 14081 rows, 11219 columns, 52596 nonzeros Variable types: 0 continuous, 11219 integer (11219 binary) Root relaxation: objective 0.000000e+00, 394 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 (394 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 16:36:06 2012 Optimize a model with 7158 rows, 6170 columns and 26730 nonzeros Presolve removed 16 rows and 432 columns Presolve time: 0.04s Presolved: 7142 rows, 5738 columns, 26298 nonzeros Variable types: 0 continuous, 5738 integer (5738 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 0.05 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 16:36:06 2012 Optimize a model with 3560 rows, 3104 columns and 12870 nonzeros Presolve removed 16 rows and 208 columns Presolve time: 0.02s Presolved: 3544 rows, 2896 columns, 12662 nonzeros Variable types: 0 continuous, 2896 integer (2896 binary) Root relaxation: objective 0.000000e+00, 409 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 (624 simplex iterations) in 0.03 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 16:36:06 2012 Optimize a model with 1761 rows, 1571 columns and 5940 nonzeros Presolve removed 16 rows and 96 columns Presolve time: 0.01s Presolved: 1745 rows, 1475 columns, 5844 nonzeros Variable types: 0 continuous, 1475 integer (1475 binary) Root relaxation: objective 0.000000e+00, 375 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 (375 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 16:36:06 2012 Optimize a model with 990 rows, 914 columns and 2970 nonzeros Presolve removed 16 rows and 48 columns Presolve time: 0.00s Presolved: 974 rows, 866 columns, 2922 nonzeros Variable types: 0 continuous, 866 integer (866 binary) Root relaxation: objective 0.000000e+00, 402 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 (554 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 16:36:06 2012 Optimize a model with 476 rows, 476 columns and 990 nonzeros Presolve removed 476 rows and 476 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 16:36:06 2012 Optimize a model with 733 rows, 695 columns and 1980 nonzeros Presolve removed 227 rows and 247 columns Presolve time: 0.00s Presolved: 506 rows, 448 columns, 1518 nonzeros Variable types: 0 continuous, 448 integer (448 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 0 190 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (752 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