[Cgl] bug in CBC or CGL

[Matthew Galati]

http://coral.ie.lehigh.edu/~magh/tmp/PRICE_AND_CUT_subProb_relax0.n0.c0.p0.b0.lp

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Cbc claims the problem is INF or UNB.

Coin Cbc and Clp Solver version 2.4stable, build Apr  1 2010
command line - ./COIN/coin-Dip-shark/build-g/bin/cbc /home/magh/PRICE_AND_CUT_subProb_relax0.n0.c0.p0.b0.lp (default strategy 1)
### WARNING: CoinLpIO::readLp(): Variable X00096 does not appear in objective function or constraints
...
Continuous objective value is 0 - 0.00 seconds
Cgl0000I Cut generators found to be infeasible!
Pre-processing says infeasible or unbounded
Total time 0.00



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Cplex claims the problem is trivially solved.

CPLEX> opt
Tried aggregator 1 time.
MIP Presolve eliminated 5 rows and 101 columns.
All rows and columns eliminated.
Presolve time =    0.00 sec.

Solution pool: 1 solution saved.

MIP - Integer optimal solution:  Objective =  0.0000000000e+00
Solution time =    0.00 sec.  Iterations = 0  Nodes = 0