current bounds on the number of colors: 0 -- 193 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:12 2012 Optimize a model with 17089 rows, 18704 columns and 69216 nonzeros Presolve removed 32 rows and 3072 columns Presolve time: 0.11s Presolved: 17057 rows, 15632 columns, 66144 nonzeros Variable types: 0 continuous, 15632 integer (15632 binary) Root relaxation: objective 0.000000e+00, 284 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 (284 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 -- 96 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:12 2012 Optimize a model with 8641 rows, 9440 columns and 34608 nonzeros Presolve removed 32 rows and 1536 columns Presolve time: 0.08s Presolved: 8609 rows, 7904 columns, 33072 nonzeros Variable types: 0 continuous, 7904 integer (7904 binary) Root relaxation: objective 0.000000e+00, 287 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 (426 simplex iterations) in 0.10 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 -- 48 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:12 2012 Optimize a model with 4417 rows, 4808 columns and 17304 nonzeros Presolve removed 32 rows and 768 columns Presolve time: 0.03s Presolved: 4385 rows, 4040 columns, 16536 nonzeros Variable types: 0 continuous, 4040 integer (4040 binary) Root relaxation: objective 0.000000e+00, 286 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 0.04 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 -- 24 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:13 2012 Optimize a model with 2305 rows, 2492 columns and 8652 nonzeros Presolve removed 32 rows and 384 columns Presolve time: 0.01s Presolved: 2273 rows, 2108 columns, 8268 nonzeros Variable types: 0 continuous, 2108 integer (2108 binary) Root relaxation: objective 0.000000e+00, 292 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 (428 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 -- 12 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:28:13 2012 Optimize a model with 1249 rows, 1334 columns and 4326 nonzeros Presolve removed 32 rows and 192 columns Presolve time: 0.00s Presolved: 1217 rows, 1142 columns, 4134 nonzeros Variable types: 0 continuous, 1142 integer (1142 binary) Root relaxation: objective 0.000000e+00, 291 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 (291 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 16:28:13 2012 Optimize a model with 721 rows, 755 columns and 2163 nonzeros Presolve removed 32 rows and 96 columns Presolve time: 0.00s Presolved: 689 rows, 659 columns, 2067 nonzeros Variable types: 0 continuous, 659 integer (659 binary) Root relaxation: objective 0.000000e+00, 279 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 (279 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 16:28:13 2012 Optimize a model with 369 rows, 369 columns and 721 nonzeros Presolve removed 369 rows and 369 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 16:28:13 2012 Optimize a model with 545 rows, 562 columns and 1442 nonzeros Presolve removed 195 rows and 228 columns Presolve time: 0.00s Presolved: 350 rows, 334 columns, 1050 nonzeros Variable types: 0 continuous, 334 integer (334 binary) Root relaxation: objective 0.000000e+00, 175 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 0 140 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (571 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