WITHOUT WARMSTART
Welcome to the CBC MILP Solver 
Version: 2.9.0
Build Date: Feb 12 2015

command line - C:\Users\cswil\anaconda3\lib\site-packages\pulp\apis\..\solverdir\cbc\win\64\cbc.exe C:\Users\cswil\AppData\Local\Temp\9f639c7d03cc45919b796e27f43fd0dd-pulp.mps branch printingOptions all solution C:\Users\cswil\AppData\Local\Temp\9f639c7d03cc45919b796e27f43fd0dd-pulp.sol (default strategy 1)
At line 2 NAME          MODEL
At line 3 ROWS
At line 23 COLUMNS
At line 24708 RHS
At line 24727 BOUNDS
At line 27941 ENDATA
Problem MODEL has 18 rows, 3213 columns and 15062 elements
Coin0008I MODEL read with 0 errors
Continuous objective value is 12 - 0.00 seconds
Cgl0004I processed model has 18 rows, 3213 columns (3213 integer (3213 of which binary)) and 15062 elements
Cutoff increment increased from 1e-005 to 0.9999
Cbc0038I Initial state - 0 integers unsatisfied sum - 0
Cbc0038I Solution found of 12
Cbc0038I Before mini branch and bound, 3213 integers at bound fixed and 0 continuous
Cbc0038I Mini branch and bound did not improve solution (0.05 seconds)
Cbc0038I After 0.05 seconds - Feasibility pump exiting with objective of 12 - took 0.01 seconds
Cbc0012I Integer solution of 12 found by feasibility pump after 0 iterations and 0 nodes (0.05 seconds)
Cbc0001I Search completed - best objective 12, took 0 iterations and 0 nodes (0.06 seconds)
Cbc0035I Maximum depth 0, 0 variables fixed on reduced cost
Cuts at root node changed objective from 12 to 12
Probing was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds) 
Gomory was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)  
Knapsack was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)Clique was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)  
MixedIntegerRounding2 was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)
FlowCover was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)
TwoMirCuts was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)

Result - Optimal solution found

Objective value:                12.00000000
Enumerated nodes:               0
Total iterations:               0
Time (CPU seconds):             0.07
Time (Wallclock seconds):       0.07

Option for printingOptions changed from normal to all
Total time (CPU seconds):       0.13   (Wallclock seconds):       0.13

The choosen tables are out of a total of 3213:
('M', 'N')
('E', 'F', 'G')
('A', 'B', 'C', 'D')
('I', 'J', 'K', 'L')
('O', 'P', 'Q', 'R')

--------------------------------------------------------------------
WITH WARMSTART
Welcome to the CBC MILP Solver 
Version: 2.9.0
Build Date: Feb 12 2015        

command line - C:\Users\cswil\anaconda3\lib\site-packages\pulp\apis\..\solverdir\cbc\win\64\cbc.exe C:\Users\cswil\AppData\Local\Temp\ac8cd07d396549569959f3efa58d6bc9-pulp.mps mips C:\Users\cswil\AppData\Local\Temp\ac8cd07d396549569959f3efa58d6bc9-pulp.mst branch printingOptions all solution C:\Users\cswil\AppData\Local\Temp\ac8cd07d396549569959f3efa58d6bc9-pulp.sol (default strategy 1)
At line 2 NAME          MODEL
At line 3 ROWS
At line 23 COLUMNS
At line 24708 RHS   
At line 24727 BOUNDS
At line 27941 ENDATA
Problem MODEL has 18 rows, 3213 columns and 15062 elements
Coin0008I MODEL read with 0 errors
will open mipstart file .\C:\Users\cswil\AppData\Local\Temp\ac8cd07d396549569959f3efa58d6bc9-pulp.mst.
Continuous objective value is 12 - 0.01 seconds
Cgl0004I processed model has 18 rows, 3213 columns (3213 integer (3213 of which binary)) and 15062 elements
Cutoff increment increased from 1e-005 to 0.9999
Cbc0038I Initial state - 0 integers unsatisfied sum - 0
Cbc0038I Solution found of 12
Cbc0038I Before mini branch and bound, 3213 integers at bound fixed and 0 continuous
Cbc0038I Mini branch and bound did not improve solution (0.07 seconds)
Cbc0038I After 0.07 seconds - Feasibility pump exiting with objective of 12 - took 0.01 seconds
Cbc0012I Integer solution of 12 found by feasibility pump after 0 iterations and 0 nodes (0.07 seconds)
Cbc0001I Search completed - best objective 12, took 0 iterations and 0 nodes (0.07 seconds)
Cbc0035I Maximum depth 0, 0 variables fixed on reduced cost
Cuts at root node changed objective from 12 to 12
Probing was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)
Gomory was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)  
Knapsack was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)Clique was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)  
MixedIntegerRounding2 was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)
FlowCover was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)
TwoMirCuts was tried 0 times and created 0 cuts of which 0 were active after adding rounds of cuts (0.000 seconds)

Result - Optimal solution found

Objective value:                12.00000000
Enumerated nodes:               0
Total iterations:               0
Time (CPU seconds):             0.09
Time (Wallclock seconds):       0.09

Option for printingOptions changed from normal to all
Total time (CPU seconds):       0.14   (Wallclock seconds):       0.14

The choosen tables are out of a total of 3213:
('M', 'N')
('E', 'F', 'G')
('A', 'B', 'C', 'D')
('I', 'J', 'K', 'L')
('O', 'P', 'Q', 'R')