[Coin-lpsolver] Clp Executable solution command

[Brad Bell]

Would someone please inform me as the the meaning of the output generated
by the Clp executable "solution" command. For example, in the output
below, I am uncertain of the meaning of the last colum of values in
Clp:
      0 x1                    2         -2.8223853e-16
      1 x2                    0                     -3
      2 x3                    1           5.647295e-16

%%%%%%%%%%%%%%%%%%%% CLP Results %%%%%%%%%%%%%%%%%%%%

Load Avg: ( 0.08 , 0.03 , 0.14 )
Coin LP version 1.02.02, build Mar 20 2006
command line - /home/neos/neos-bin/clp clp.mps -
At line 4 NAME          CE-2.1
At line 5 ROWS
At line 10 COLUMNS
At line 19 RHS
At line 23 ENDATA
Problem CE-2.1 has 3 rows, 3 columns and 9 elements
Model was imported from ./clp.mps in 0 seconds
Switching to line mode
Clp:Clp:Clp:Presolve 3 (0) rows, 3 (0) columns and 9 (0) elements
0  Obj -0 Dual inf 7.47056 (3)
4  Obj 13
Optimal - objective value 13
Optimal objective 13 - 4 iterations time 0.002
Clp:
      0 x1                    2         -2.8223853e-16
      1 x2                    0                     -3
      2 x3                    1           5.647295e-16
%%%%%%%%%%%%%%%%%%%% CLP Results %%%%%%%%%%%%%%%%%%%%