[Cbc-tickets] [COIN-OR Branch-and-Cut MIP Solver] #167: Crash unless both preprocess and presolve are turned off

[COIN-OR Branch-and-Cut MIP Solver]

#167: Crash unless both preprocess and presolve are turned off
-----------------------+-----------------
Reporter:  jackdunnnz  |      Owner:  tkr
    Type:  defect      |     Status:  new
Priority:  major       |  Component:  Cbc
 Version:  2.9.7       |   Keywords:
-----------------------+-----------------
 Running the attached model with default settings yields the following
 crash:

 {{{
 Welcome to the CBC MILP Solver
 Version: 2.9.7
 Build Date: Nov 23 2015

 command line - cbc-osx/cbc test.mps (default strategy 1)
 At line 1 NAME          test
 At line 2 ROWS
 At line 7 COLUMNS
 At line 32 RHS
 At line 36 BOUNDS
 At line 55 ENDATA
 Problem test has 3 rows, 18 columns and 21 elements
 Coin0008I test read with 0 errors
 libc++abi.dylib: terminating with uncaught exception of type CoinError
 [1]    65438 abort      cbc-osx/cbc test.mps
 }}}

 If I turn both `preprocess` and `presolve` to `off`, the model solves as
 expected, but any other combination of values for these two flags gives
 the same crash.

 The test above was while running on OS X, but it is reproducible on
 Windows as well.

--
Ticket URL: <https://projects.coin-or.org/Cbc/ticket/167>
COIN-OR Branch-and-Cut MIP Solver <http://projects.coin-or.org/Cbc>
An LP-based branch-and-cut MIP solver.