current bounds on the number of colors: 0 -- 156 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:50 2012 Optimize a model with 10140 rows, 12296 columns and 42120 nonzeros Presolve removed 27 rows and 2106 columns Presolve time: 0.11s Presolved: 10113 rows, 10190 columns, 40014 nonzeros Variable types: 0 continuous, 10190 integer (10190 binary) Root relaxation: objective 0.000000e+00, 234 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 (234 simplex iterations) in 0.12 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 -- 78 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:50 2012 Optimize a model with 5148 rows, 6212 columns and 21060 nonzeros Presolve removed 27 rows and 1053 columns Presolve time: 0.04s Presolved: 5121 rows, 5159 columns, 20007 nonzeros Variable types: 0 continuous, 5159 integer (5159 binary) Root relaxation: objective 0.000000e+00, 234 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 (234 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 -- 39 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:50 2012 Optimize a model with 2588 rows, 3092 columns and 10260 nonzeros Presolve removed 27 rows and 513 columns Presolve time: 0.01s Presolved: 2561 rows, 2579 columns, 9747 nonzeros Variable types: 0 continuous, 2579 integer (2579 binary) Root relaxation: objective 0.000000e+00, 233 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 (233 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 -- 19 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:50 2012 Optimize a model with 1308 rows, 1532 columns and 4860 nonzeros Presolve removed 27 rows and 243 columns Presolve time: 0.01s Presolved: 1281 rows, 1289 columns, 4617 nonzeros Variable types: 0 continuous, 1289 integer (1289 binary) Root relaxation: objective 0.000000e+00, 215 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 (215 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 -- 9 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:50 2012 Optimize a model with 668 rows, 752 columns and 2160 nonzeros Presolve removed 27 rows and 108 columns Presolve time: 0.00s Presolved: 641 rows, 644 columns, 2052 nonzeros Variable types: 0 continuous, 644 integer (644 binary) Root relaxation: objective 0.000000e+00, 193 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 (193 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 -- 4 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:51 2012 Optimize a model with 412 rows, 440 columns and 1080 nonzeros Presolve removed 168 rows and 201 columns Presolve time: 0.00s Presolved: 244 rows, 239 columns, 732 nonzeros Variable types: 0 continuous, 239 integer (239 binary) Root relaxation: objective 0.000000e+00, 131 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 0 105 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (375 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e+00, gap - current bounds on the number of colors: 2 -- 4 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:20:51 2012 Optimize a model with 540 rows, 596 columns and 1620 nonzeros Presolve removed 27 rows and 81 columns Presolve time: 0.00s Presolved: 513 rows, 515 columns, 1539 nonzeros Variable types: 0 continuous, 515 integer (515 binary) Root relaxation: objective 0.000000e+00, 193 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 (193 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% optimal solution found: number of colors: 3