current bounds on the number of colors: 0 -- 236 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:42:36 2012 Optimize a model with 35164 rows, 28144 columns and 132632 nonzeros Presolve removed 20 rows and 2360 columns Presolve time: 0.17s Presolved: 35144 rows, 25784 columns, 130272 nonzeros Variable types: 0 continuous, 25784 integer (25784 binary) Root relaxation: objective 0.000000e+00, 403 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 (403 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 -- 118 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:42:37 2012 Optimize a model with 17700 rows, 14220 columns and 66316 nonzeros Presolve removed 20 rows and 1180 columns Presolve time: 0.12s Presolved: 17680 rows, 13040 columns, 65136 nonzeros Variable types: 0 continuous, 13040 integer (13040 binary) Root relaxation: objective 0.000000e+00, 403 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 (403 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 16:42:37 2012 Optimize a model with 8820 rows, 7140 columns and 32596 nonzeros Presolve removed 20 rows and 580 columns Presolve time: 0.05s Presolved: 8800 rows, 6560 columns, 32016 nonzeros Variable types: 0 continuous, 6560 integer (6560 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 16:42:37 2012 Optimize a model with 4380 rows, 3600 columns and 15736 nonzeros Presolve removed 20 rows and 280 columns Presolve time: 0.02s Presolved: 4360 rows, 3320 columns, 15456 nonzeros Variable types: 0 continuous, 3320 integer (3320 binary) Root relaxation: objective 0.000000e+00, 407 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 (407 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 16:42:38 2012 Optimize a model with 2308 rows, 1948 columns and 7868 nonzeros Presolve removed 20 rows and 140 columns Presolve time: 0.01s Presolved: 2288 rows, 1808 columns, 7728 nonzeros Variable types: 0 continuous, 1808 integer (1808 binary) Root relaxation: objective 0.000000e+00, 411 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 (411 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 16:42:38 2012 Optimize a model with 1124 rows, 1004 columns and 3372 nonzeros Presolve removed 20 rows and 60 columns Presolve time: 0.00s Presolved: 1104 rows, 944 columns, 3312 nonzeros Variable types: 0 continuous, 944 integer (944 binary) Root relaxation: objective 0.000000e+00, 438 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 (620 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 16:42:38 2012 Optimize a model with 532 rows, 532 columns and 1124 nonzeros Presolve removed 532 rows and 532 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 16:42:38 2012 Optimize a model with 828 rows, 768 columns and 2248 nonzeros Presolve removed 238 rows and 259 columns Presolve time: 0.00s Presolved: 590 rows, 509 columns, 1770 nonzeros Variable types: 0 continuous, 509 integer (509 binary) Root relaxation: objective 0.000000e+00, 251 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 0 214 - 0.00000 - - 0s Explored 0 nodes (797 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