[Clp] Clp hangs on some test files

[John Forrest]

Clp can't solve conic problems - samples are probably for Ipopt.

On 31/12/14 09:16, Yann COLLETTE wrote:
> Hello,
>
> I use clp from trunk on fedora 20 64 bits.
>
> I noticed that with 2 mps files shipped in the clp source distribution 
> clp hangs.
>
> - with spec-section.mps:
>
> command line - 
> /home/collette/repositories/github/CoinOR/Clp/build/bin/clp 
> ../Data/Sample/spec_sections.mps -solve
> At line 8 NAME
> At line 9 ROWS
> At line 12 COLUMNS
> At line 32 RHS
> At line 34 RANGES
> At line 36 BOUNDS
> At line 39 SOS
> At line 46 QUADOBJ
> Problem no_name has 1 rows, 15 columns and 15 elements
> At line 50 CSECTION      cone1       0.0          QUAD
> Model was imported from ./../Data/Sample/spec_sections.mps in 0 seconds
> Presolve 1 (0) rows, 7 (-8) columns and 7 (-8) elements
> 0  Obj 0 Primal inf 798 (1) Dual inf 5.999994 (6)
> 1  Obj 0
> Optimal - objective value 0
> 0  Obj 2.2288938e+08 Dual inf 2633496.5 (5)
> ****** th 4.49423e+306 simple -inf
> ****** th 5.99231e+306 simple -inf
> clp: 
> /home/collette/repositories/github/CoinOR/Clp/Clp/src/ClpSimplexNonlinear.cpp:2117: 
> int ClpSimplexNonlinear::pivotColumn(CoinIndexedVector*, 
> CoinIndexedVector*, CoinIndexedVector*, CoinIndexedVector*, int&, 
> double&, double*): Assertion `theta_ < 1.0e30' failed.
>
> Program received signal SIGABRT, Aborted.
> 0x0000003ffa835877 in raise () from /lib64/libc.so.6
> Missing separate debuginfos, use: debuginfo-install 
> atlas-3.8.4-13.fc20.x86_64 bzip2-libs-1.0.6-9.fc20.x86_64 
> glibc-2.18-16.fc20.x86_64 libgcc-4.8.3-7.fc20.x86_64 
> libgfortran-4.8.3-7.fc20.x86_64 libquadmath-4.8.3-7.fc20.x86_64 
> libstdc++-4.8.3-7.fc20.x86_64 zlib-1.2.8-3.fc20.x86_64
> (gdb) where
> #0  0x0000003ffa835877 in raise () from /lib64/libc.so.6
> #1  0x0000003ffa836f68 in abort () from /lib64/libc.so.6
> #2  0x0000003ffa82e7d6 in __assert_fail_base () from /lib64/libc.so.6
> #3  0x0000003ffa82e882 in __assert_fail () from /lib64/libc.so.6
> #4  0x00000000004c6143 in ClpSimplexNonlinear::pivotColumn 
> (this=0x9d7cd0, longArray=0x9e2e00, rowArray=0x9d98b0, 
> columnArray=0x9e32d0, spare=0x9d8a60, pivotMode=@0x7fffffff1964: 14, 
> solutionError=@0x7fffffff18b0: 0, dArray=0x9e4bb0)
>     at 
> /home/collette/repositories/github/CoinOR/Clp/Clp/src/ClpSimplexNonlinear.cpp:2117
> #5  0x00000000004c08a9 in ClpSimplexNonlinear::whileIterating 
> (this=0x9d7cd0, pivotMode=@0x7fffffff1964: 14) at 
> /home/collette/repositories/github/CoinOR/Clp/Clp/src/ClpSimplexNonlinear.cpp:664
> #6  0x00000000004be4e1 in ClpSimplexNonlinear::primal (this=0x9d7cd0) 
> at 
> /home/collette/repositories/github/CoinOR/Clp/Clp/src/ClpSimplexNonlinear.cpp:167
> #7  0x0000000000482693 in ClpSimplex::reducedGradient (this=0x9d7cd0, 
> phase=0) at 
> /home/collette/repositories/github/CoinOR/Clp/Clp/src/ClpSimplex.cpp:6086
> #8  0x000000000048096c in ClpSimplex::primal (this=0x9d7cd0, 
> ifValuesPass=1, startFinishOptions=0) at 
> /home/collette/repositories/github/CoinOR/Clp/Clp/src/ClpSimplex.cpp:5665
> #9  0x0000000000517ebe in ClpSimplex::initialSolve (this=0x9c97a8, 
> options=...) at 
> /home/collette/repositories/github/CoinOR/Clp/Clp/src/ClpSolve.cpp:2371
> #10 0x0000000000606d45 in ClpMain1 (argc=3, argv=0x7fffffffdc08, 
> models=0x9c97a8) at 
> /home/collette/repositories/github/CoinOR/Clp/Clp/src/ClpSolver.cpp:1048
> #11 0x0000000000466316 in main (argc=3, argv=0x7fffffffdc08) at 
> /home/collette/repositories/github/CoinOR/Clp/Clp/src/ClpMain.cpp:215
>
>
> - with conic.mps:
>
> Coin LP version 1.15.6, build Dec 31 2014
> command line - 
> /home/collette/repositories/github/CoinOR/Clp/build/bin/clp 
> ../Data/Sample/conic.mps -solve
> At line 1 NAME
> At line 2 ROWS
> At line 5 COLUMNS
> At line 25 RHS
> At line 27 RANGES
> At line 29 BOUNDS
> At line 32 SOS
> At line 39 QUADOBJ
> Problem no_name has 1 rows, 15 columns and 15 elements
> At line 43 CSECTION      cone1       0.0          QUAD
> Model was imported from ./../Data/Sample/conic.mps in 0.000788 seconds
> Presolve 1 (0) rows, 7 (-8) columns and 7 (-8) elements
> 0  Obj 0 Primal inf 798 (1) Dual inf 5.999994 (6)
> 1  Obj 0
> Optimal - objective value 0
> 0  Obj 2.2288938e+08 Dual inf 2633496.5 (5)
> ****** th 4.49423e+306 simple -inf
> ****** th 5.99231e+306 simple -inf
> clp: 
> /home/collette/repositories/github/CoinOR/Clp/Clp/src/ClpSimplexNonlinear.cpp:2117: 
> int ClpSimplexNonlinear::pivotColumn(CoinIndexedVector*, 
> CoinIndexedVector*, CoinIndexedVector*, CoinIndexedVector*, int&, 
> double&, double*): Assertion `theta_ < 1.0e30' failed.
>
> Program received signal SIGABRT, Aborted.
> 0x0000003ffa835877 in raise () from /lib64/libc.so.6
> Missing separate debuginfos, use: debuginfo-install 
> atlas-3.8.4-13.fc20.x86_64 bzip2-libs-1.0.6-9.fc20.x86_64 
> glibc-2.18-16.fc20.x86_64 libgcc-4.8.3-7.fc20.x86_64 
> libgfortran-4.8.3-7.fc20.x86_64 libquadmath-4.8.3-7.fc20.x86_64 
> libstdc++-4.8.3-7.fc20.x86_64 zlib-1.2.8-3.fc20.x86_64
>
> Best regards,
>
> YC
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