[Scip] SCIP binary holding output back?

Ramón Casero Cañas rcasero at gmail.com
Fri Mar 14 00:22:09 CET 2014


Dear Gerald,

Many thanks for coming to the rescue! I didn't realise  :-/ Now it seems
obvious that I should have looked at the stats. I couldn't copy that first
line, because the output overflowed my terminal buffer. And quite
foolishly, I quit SCIP before looking at the stats, which means I need to
run this problem again.

Apologies, thanks for your patience and I'll send the stats tomorrow (it's
going to take 4 h to recompute).

Best regards,

Ramon.



On 13 March 2014 22:55, Gerald Gamrath <gamrath at zib.de> wrote:

>  Dear Ramon,
>
> this is exactly the same thing we already discussed two weeks ago: SCIP is
> not holding any output back, but a root node heuristic is called and seems
> to take a huge amount of time. I would guess it is the subnlp heuristic,
> but you could check this if you would print the statistics after solving a
> problem (or stopping the solving process). You just need to type "print
> stat" in the interactive shell. Then, you will see which plugin consumes
> how much time.
>
> During the heuristic call, no output is printed, because it is just a
> subroutine and the branch-and-bound process doesn't proceed. If you press
> CTRL-C, SCIP interrupts the heuristic and finishes the current node, so
> that you get some output before the solving process is really interrupted.
>
> Looking at your output below, I can see that you have a primal bound now,
> but you didn't copy the line where it is first listed and which also lists
> the heuristic responsible for it. Thus, I can only guess that the heuristic
> running so long might have found it, so it might even be worth the long
> running time. But all of this would be clearer if you would print the
> statistics.
>
> Best,
> Gerald
>
>
> Am 13.03.2014 23:39, schrieb Ramón Casero Cañas:
>
>  PS. It seems that output to screen starts after 4 h with this problem
>
>
>    240m|     1 |     0 |  2458k|     - |  65M|   0 |   0 |1642 |1954
> |1642 |  24k|  71k|   0 |   0 |-4.228916e+04 |-4.099956e+04 |   3.15%
>   240m|     1 |     0 |  2458k|     - |  65M|   0 |   0 |1642 |1954 |1642
> |  24k|  71k|   0 |   0 |-4.228916e+04 |-4.099956e+04 |   3.15%
>   240m|     1 |     0 |  2458k|     - |  65M|   0 |   0 |1642 |1954 |1642
> |  24k|  71k|   0 |   0 |-4.228916e+04 |-4.099956e+04 |   3.15%
>   240m|     1 |     0 |  2459k|     - |  65M|   0 |   0 |1642 |1954 |1642
> |  24k|  71k|   0 |   0 |-4.228916e+04 |-4.099956e+04 |   3.15%
>   240m|     1 |     0 |  2459k|     - |  65M|   0 |   0 |1642 |1954 |1642
> |  24k|  71k|   0 |   0 |-4.228916e+04 |-4.099956e+04 |   3.15%
>  time | node  | left  |LP iter|LP it/n| mem |mdpt |frac |vars |cons |cols
> |rows |cuts |confs|strbr|  dualbound   | primalbound  |  gap
>   240m|     1 |     0 |  2459k|     - |  65M|   0 |   0 |1642 |1954 |1642
> |  24k|  71k|   0 |   0 |-4.228916e+04 |-4.099956e+04 |   3.15%
>   240m|     1 |     0 |  2460k|     - |  65M|   0 |   0 |1642 |1954 |1642
> |  24k|  71k|   0 |   0 |-4.228916e+04 |-4.099956e+04 |   3.15%
>   240m|     1 |     0 |  2460k|     - |  65M|   0 |   0 |1642 |1954 |1642
> |  24k|  71k|   0 |   0 |-4.228916e+04 |-4.099956e+04 |   3.15%
>   240m|     1 |     0 |  2461k|     - |  65M|   0 |   0 |1642 |1954 |1642
> |  24k|  71k|   0 |   0 |-4.228916e+04 |-4.099956e+04 |   3.15%
>   240m|     1 |     0 |  2461k|     - |  65M|   0 |   0 |1642 |1954 |1642
> |  24k|  71k|   0 |   0 |-4.228916e+04 |-4.099956e+04 |   3.15%
>   240m|     1 |     0 |  2461k|     - |  65M|   0 |   0 |1642 |1954 |1642
> |  24k|  71k|   0 |   0 |-4.228916e+04 |-4.099956e+04 |   3.15%
>   240m|     1 |     0 |  2461k|     - |  65M|   0 |   0 |1642 |1954 |1642
> |  24k|  71k|   0 |   0 |-4.228916e+04 |-4.099956e+04 |   3.15%
>   240m|     1 |     0 |  2462k|     - |  65M|   0 |   0 |1642 |1954 |1642
> |  24k|  71k|   0 |   0 |-4.228916e+04 |-4.099956e+04 |   3.15%
>   240m|     1 |     0 |  2462k|     - |  65M|   0 |   0 |1642 |1954 |1642
> |  24k|  71k|   0 |   0 |-4.228916e+04 |-4.099956e+04 |   3.15%
>   240m|     1 |     0 |  2462k|     - |  65M|   0 |   0 |1642 |1954 |1642
> |  24k|  71k|   0 |   0 |-4.228916e+04 |-4.099956e+04 |   3.15%
>   240m|     1 |     0 |  2463k|     - |  65M|   0 |   0 |1642 |1954 |1642
> |  24k|  71k|   0 |   0 |-4.228916e+04 |-4.099956e+04 |   3.15%
>   241m|     1 |     0 |  2463k|     - |  65M|   0 |   0 |1642 |1954 |1642
> |  24k|  71k|   0 |   0 |-4.228916e+04 |-4.099956e+04 |   3.15%
>
>  [...]
>
>
>
>
> On 13 March 2014 18:31, Ramón Casero Cañas <rcasero at gmail.com> wrote:
>
>> Hi,
>>
>>  I just emailed about this issue in a thread on a previous issue, but I
>> thought maybe it'd be better to start a separate thread with a much smaller
>> example.
>>
>>  So the issue seems to be that solving a problem in the SCIP binary
>> holds back the verbose output to the screen unless I hit CTRL+C. This makes
>> progress info start streaming on the screen, but then execution stops due
>> to a user interrupt.
>>
>>  I have attached a much smaller problem than the one in the other
>> thread. After loading it, I quickly get this preliminary output:
>>
>>  <FIRST PART>
>>  SCIP/set/display> verblevel 5
>> display/verblevel = 5
>> SCIP> optimize
>>
>>  LP Solver <SoPlex 2.0.0>: barrier convergence tolerance cannot be set
>> -- tolerance of SCIP and LP solver may differ
>> LP Solver <SoPlex 2.0.0>: fastmip setting not available -- SCIP parameter
>> has no effect
>> LP Solver <SoPlex 2.0.0>: number of threads settings not available --
>> SCIP parameter has no effect
>>  transformed problem has 406 variables (0 bin, 0 int, 0 impl, 406 cont)
>> and 764 constraints
>>      92 constraints of type <linear>
>>     260 constraints of type <quadratic>
>>     412 constraints of type <nonlinear>
>>
>>  original problem has 5539 active (1.78571%) nonzeros and 5539
>> (1.78571%) check nonzeros
>>
>>  presolving:
>> (round 1) 0 del vars, 46 del conss, 0 add conss, 29 chg bounds, 0 chg
>> sides, 0 chg coeffs, 0 upgd conss, 0 impls, 0 clqs
>> (round 2) 0 del vars, 46 del conss, 0 add conss, 32 chg bounds, 0 chg
>> sides, 0 chg coeffs, 0 upgd conss, 0 impls, 0 clqs
>> (round 3) 0 del vars, 46 del conss, 0 add conss, 34 chg bounds, 0 chg
>> sides, 0 chg coeffs, 0 upgd conss, 0 impls, 0 clqs
>> (round 4) 0 del vars, 46 del conss, 1236 add conss, 34 chg bounds, 0 chg
>> sides, 0 chg coeffs, 0 upgd conss, 0 impls, 0 clqs
>> (round 5) 0 del vars, 46 del conss, 1236 add conss, 34 chg bounds, 0 chg
>> sides, 0 chg coeffs, 1648 upgd conss, 0 impls, 0 clqs
>> (round 6) 0 del vars, 46 del conss, 1236 add conss, 2506 chg bounds, 0
>> chg sides, 0 chg coeffs, 1648 upgd conss, 0 impls, 0 clqs
>>
>>  presolved problem has 9245 active (0.288144%) nonzeros and 9245
>> (0.288144%) check nonzeros
>>
>>  presolving (7 rounds):
>>  0 deleted vars, 46 deleted constraints, 1236 added constraints, 2506
>> tightened bounds, 0 added holes, 0 changed sides, 0 changed coefficients
>>  0 implications, 0 cliques
>> presolved problem has 1642 variables (0 bin, 0 int, 0 impl, 1642 cont)
>> and 1954 constraints
>>      46 constraints of type <linear>
>>    1908 constraints of type <quadratic>
>> Presolving Time: 0.06
>>
>>   time | node  | left  |LP iter|LP it/n| mem |mdpt |frac |vars |cons
>> |cols |rows |cuts |confs|strbr|  dualbound   | primalbound  |  gap
>>   0.2s|     1 |     0 |   927 |     - |  13M|   0 |   0 |1642 |1954 |1642
>> |6384 |   0 |   0 |   0 |-1.201150e+05 |      --      |    Inf
>>
>>
>> ******************************************************************************
>> This program contains Ipopt, a library for large-scale nonlinear
>> optimization.
>>  Ipopt is released as open source code under the Eclipse Public License
>> (EPL).
>>          For more information visit http://projects.coin-or.org/Ipopt
>>
>> ******************************************************************************
>>  </FIRST PART>
>>
>>  But although the solver is running, it doesn't produce progress updates
>> to the screen. If I hit CTRL+C once, then after a couple of seconds, it
>> starts producing progress output to the screen, and then stops with a "user
>> interrupt" status:
>>
>>  <SECOND PART>
>>  ^Cpressed CTRL-C 1 times (5 times for forcing termination)
>>   286s|     1 |     0 |  3447 |     - |  13M|   0 |   0 |1642 |1954 |1642
>> |7060 | 676 |   0 |   0 |-1.186773e+05 |      --      |    Inf
>>   286s|     1 |     0 |  4143 |     - |  14M|   0 |   0 |1642 |1954 |1642
>> |7482 |1098 |   0 |   0 |-1.040837e+05 |      --      |    Inf
>>   286s|     1 |     0 |  4986 |     - |  14M|   0 |   0 |1642 |1954 |1642
>> |7735 |1351 |   0 |   0 |-9.543168e+04 |      --      |    Inf
>>   286s|     1 |     0 |  5692 |     - |  14M|   0 |   0 |1642 |1954 |1642
>> |7931 |1547 |   0 |   0 |-9.030769e+04 |      --      |    Inf
>>   286s|     1 |     0 |  6706 |     - |  14M|   0 |   0 |1642 |1954 |1642
>> |8132 |1748 |   0 |   0 |-8.602087e+04 |      --      |    Inf
>>   286s|     1 |     0 |  7536 |     - |  14M|   0 |   0 |1642 |1954 |1642
>> |8321 |1937 |   0 |   0 |-8.424139e+04 |      --      |    Inf
>>   286s|     1 |     0 |  8459 |     - |  14M|   0 |   0 |1642 |1954 |1642
>> |8491 |2107 |   0 |   0 |-8.269326e+04 |      --      |    Inf
>>   287s|     1 |     0 |  9769 |     - |  14M|   0 |   0 |1642 |1954 |1642
>> |8634 |2250 |   0 |   0 |-8.041901e+04 |      --      |    Inf
>>   287s|     1 |     0 | 11069 |     - |  14M|   0 |   0 |1642 |1954 |1642
>> |8782 |2398 |   0 |   0 |-7.804445e+04 |      --      |    Inf
>>   287s|     1 |     0 | 13380 |     - |  15M|   0 |   0 |1642 |1954 |1642
>> |8936 |2552 |   0 |   0 |-7.484889e+04 |      --      |    Inf
>>   287s|     1 |     0 | 15065 |     - |  12M|   0 |   0 |1642 |1954 |1642
>> |4245 |2715 |   0 |   0 |-7.282151e+04 |      --      |    Inf
>>   287s|     1 |     0 | 17061 |     - |  12M|   0 |   0 |1642 |1954 |1642
>> |4405 |2875 |   0 |   0 |-7.161001e+04 |      --      |    Inf
>>   288s|     1 |     0 | 19215 |     - |  12M|   0 |   0 |1642 |1954 |1642
>> |4726 |3196 |   0 |   0 |-7.065624e+04 |      --      |    Inf
>>   288s|     1 |     0 | 21248 |     - |  13M|   0 |   0 |1642 |1954 |1642
>> |4964 |3434 |   0 |   0 |-6.997339e+04 |      --      |    Inf
>>  time | node  | left  |LP iter|LP it/n| mem |mdpt |frac |vars |cons |cols
>> |rows |cuts |confs|strbr|  dualbound   | primalbound  |  gap
>>   288s|     1 |     0 | 22742 |     - |  13M|   0 |   0 |1642 |1954 |1642
>> |5170 |3640 |   0 |   0 |-6.951269e+04 |      --      |    Inf
>>   288s|     1 |     0 | 25416 |     - |  13M|   0 |   0 |1642 |1954 |1642
>> |5354 |3824 |   0 |   0 |-6.902225e+04 |      --      |    Inf
>>   288s|     1 |     0 | 28022 |     - |  13M|   0 |   0 |1642 |1954 |1642
>> |5013 |4012 |   0 |   0 |-6.860287e+04 |      --      |    Inf
>>   289s|     1 |     0 | 30051 |     - |  13M|   0 |   0 |1642 |1954 |1642
>> |5200 |4199 |   0 |   0 |-6.822432e+04 |      --      |    Inf
>>   289s|     1 |     0 | 33118 |     - |  13M|   0 |   0 |1642 |1954 |1642
>> |5428 |4427 |   0 |   0 |-6.756176e+04 |      --      |    Inf
>>   289s|     1 |     0 | 36222 |     - |  13M|   0 |   0 |1642 |1954 |1642
>> |5631 |4630 |   0 |   0 |-6.690635e+04 |      --      |    Inf
>>   290s|     1 |     0 | 39332 |     - |  13M|   0 |   0 |1642 |1954 |1642
>> |5826 |4825 |   0 |   0 |-6.635423e+04 |      --      |    Inf
>>   290s|     1 |     0 | 41547 |     - |  13M|   0 |   0 |1642 |1954 |1642
>> |6041 |5040 |   0 |   0 |-6.589305e+04 |      --      |    Inf
>>   291s|     1 |     0 | 44794 |     - |  13M|   0 |   0 |1642 |1954 |1642
>> |5913 |5202 |   0 |   0 |-6.511417e+04 |      --      |    Inf
>>   291s|     1 |     0 | 47464 |     - |  13M|   0 |   0 |1642 |1954 |1642
>> |6107 |5396 |   0 |   0 |-6.470413e+04 |      --      |    Inf
>>   291s|     1 |     0 | 51704 |     - |  13M|   0 |   0 |1642 |1954 |1642
>> |6318 |5607 |   0 |   0 |-6.416194e+04 |      --      |    Inf
>>   292s|     1 |     0 | 54506 |     - |  13M|   0 |   0 |1642 |1954 |1642
>> |6496 |5785 |   0 |   0 |-6.369820e+04 |      --      |    Inf
>>   292s|     1 |     0 | 57603 |     - |  14M|   0 |   0 |1642 |1954 |1642
>> |6677 |5966 |   0 |   0 |-6.317156e+04 |      --      |    Inf
>>   293s|     1 |     0 | 61070 |     - |  14M|   0 |   0 |1642 |1954 |1642
>> |6837 |6126 |   0 |   0 |-6.244259e+04 |      --      |    Inf
>>   293s|     1 |     0 | 65018 |     - |  14M|   0 |   0 |1642 |1954 |1642
>> |6884 |6284 |   0 |   0 |-6.171747e+04 |      --      |    Inf
>>  time | node  | left  |LP iter|LP it/n| mem |mdpt |frac |vars |cons |cols
>> |rows |cuts |confs|strbr|  dualbound   | primalbound  |  gap
>>   294s|     1 |     0 | 69115 |     - |  14M|   0 |   0 |1642 |1954 |1642
>> |7045 |6445 |   0 |   0 |-6.138368e+04 |      --      |    Inf
>>   294s|     1 |     0 | 71946 |     - |  14M|   0 |   0 |1642 |1954 |1642
>> |7207 |6607 |   0 |   0 |-6.069074e+04 |      --      |    Inf
>>   295s|     1 |     0 | 76532 |     - |  14M|   0 |   0 |1642 |1954 |1642
>> |7391 |6791 |   0 |   0 |-5.966905e+04 |      --      |    Inf
>>   295s|     1 |     0 | 78260 |     - |  14M|   0 |   0 |1642 |1954 |1642
>> |7583 |6983 |   0 |   0 |-5.909029e+04 |      --      |    Inf
>>   296s|     1 |     0 | 81909 |     - |  14M|   0 |   0 |1642 |1954 |1642
>> |7731 |7131 |   0 |   0 |-5.851607e+04 |      --      |    Inf
>>   297s|     1 |     0 | 85974 |     - |  14M|   0 |   0 |1642 |1954 |1642
>> |7776 |7274 |   0 |   0 |-5.765575e+04 |      --      |    Inf
>>   297s|     1 |     0 | 88288 |     - |  14M|   0 |   0 |1642 |1954 |1642
>> |7939 |7437 |   0 |   0 |-5.716315e+04 |      --      |    Inf
>>   298s|     1 |     0 | 93038 |     - |  15M|   0 |   0 |1642 |1954 |1642
>> |8117 |7615 |   0 |   0 |-5.643660e+04 |      --      |    Inf
>>   298s|     1 |     0 | 95971 |     - |  15M|   0 |   0 |1642 |1954 |1642
>> |8295 |7793 |   0 |   0 |-5.603223e+04 |      --      |    Inf
>>   299s|     1 |     0 | 99733 |     - |  15M|   0 |   0 |1642 |1954 |1642
>> |8437 |7935 |   0 |   0 |-5.547838e+04 |      --      |    Inf
>>   300s|     1 |     0 |103497 |     - |  15M|   0 |   0 |1642 |1954 |1642
>> |8581 |8079 |   0 |   0 |-5.478752e+04 |      --      |    Inf
>>   300s|     1 |     0 |105972 |     - |  15M|   0 |   0 |1642 |1954 |1642
>> |8697 |8239 |   0 |   0 |-5.450569e+04 |      --      |    Inf
>>   301s|     1 |     0 |108794 |     - |  15M|   0 |   0 |1642 |1954 |1642
>> |8833 |8375 |   0 |   0 |-5.410009e+04 |      --      |    Inf
>>   301s|     1 |     0 |111985 |     - |  15M|   0 |   0 |1642 |1954 |1642
>> |8975 |8517 |   0 |   0 |-5.374121e+04 |      --      |    Inf
>>   302s|     1 |     0 |115192 |     - |  15M|   0 |   0 |1642 |1954 |1642
>> |9122 |8664 |   0 |   0 |-5.311381e+04 |      --      |    Inf
>>  time | node  | left  |LP iter|LP it/n| mem |mdpt |frac |vars |cons |cols
>> |rows |cuts |confs|strbr|  dualbound   | primalbound  |  gap
>>   302s|     1 |     0 |118513 |     - |  15M|   0 |   0 |1642 |1954 |1642
>> |9274 |8816 |   0 |   0 |-5.273668e+04 |      --      |    Inf
>>   303s|     1 |     0 |120813 |     - |  15M|   0 |   0 |1642 |1954 |1642
>> |9407 |8949 |   0 |   0 |-5.242103e+04 |      --      |    Inf
>>   303s|     1 |     0 |123136 |     - |  15M|   0 |   0 |1642 |1954 |1642
>> |9520 |9090 |   0 |   0 |-5.223559e+04 |      --      |    Inf
>>   304s|     1 |     0 |126199 |     - |  16M|   0 |   0 |1642 |1954 |1642
>> |9658 |9228 |   0 |   0 |-5.174982e+04 |      --      |    Inf
>>   305s|     1 |     0 |130211 |     - |  16M|   0 |   0 |1642 |1954 |1642
>> |9804 |9374 |   0 |   0 |-5.129639e+04 |      --      |    Inf
>>   306s|     1 |     0 |134870 |     - |  16M|   0 |   0 |1642 |1954 |1642
>> |9947 |9517 |   0 |   0 |-5.060581e+04 |      --      |    Inf
>>   306s|     1 |     0 |137154 |     - |  16M|   0 |   0 |1642 |1954 |1642
>> |  10k|9667 |   0 |   0 |-5.046065e+04 |      --      |    Inf
>>   307s|     1 |     0 |140538 |     - |  16M|   0 |   0 |1642 |1954 |1642
>> |  10k|9803 |   0 |   0 |-5.020780e+04 |      --      |    Inf
>>   307s|     1 |     0 |142506 |     - |  16M|   0 |   0 |1642 |1954 |1642
>> |  10k|9955 |   0 |   0 |-5.008049e+04 |      --      |    Inf
>>   307s|     1 |     0 |143859 |     - |  16M|   0 |   0 |1642 |1954 |1642
>> |  10k|  10k|   0 |   0 |-4.999248e+04 |      --      |    Inf
>>   308s|     1 |     0 |147709 |     - |  16M|   0 |   0 |1642 |1954 |1642
>> |  10k|  10k|   0 |   0 |-4.964520e+04 |      --      |    Inf
>>   309s|     1 |     0 |150723 |     - |  16M|   0 |   0 |1642 |1954 |1642
>> |  10k|  10k|   0 |   0 |-4.941847e+04 |      --      |    Inf
>>   310s|     1 |     0 |154825 |     - |  16M|   0 |   0 |1642 |1954 |1642
>> |  10k|  10k|   0 |   0 |-4.915622e+04 |      --      |    Inf
>>   311s|     1 |     0 |158573 |     - |  17M|   0 |   0 |1642 |1954 |1642
>> |  11k|  10k|   0 |   0 |-4.884642e+04 |      --      |    Inf
>>   311s|     1 |     0 |160454 |     - |  17M|   0 |   0 |1642 |1954 |1642
>> |  11k|  10k|   0 |   0 |-4.870905e+04 |      --      |    Inf
>>  time | node  | left  |LP iter|LP it/n| mem |mdpt |frac |vars |cons |cols
>> |rows |cuts |confs|strbr|  dualbound   | primalbound  |  gap
>>   312s|     1 |     0 |163957 |     - |  17M|   0 |   0 |1642 |1954 |1642
>> |  11k|  10k|   0 |   0 |-4.846489e+04 |      --      |    Inf
>>   313s|     1 |     0 |167788 |     - |  17M|   0 |   0 |1642 |1954 |1642
>> |  11k|  11k|   0 |   0 |-4.814386e+04 |      --      |    Inf
>>   313s|     1 |     0 |170278 |     - |  17M|   0 |   0 |1642 |1954 |1642
>> |  11k|  11k|   0 |   0 |-4.801902e+04 |      --      |    Inf
>>   314s|     1 |     0 |172955 |     - |  17M|   0 |   0 |1642 |1954 |1642
>> |  11k|  11k|   0 |   0 |-4.768173e+04 |      --      |    Inf
>>   315s|     1 |     0 |176624 |     - |  17M|   0 |   0 |1642 |1954 |1642
>> |  11k|  11k|   0 |   0 |-4.742952e+04 |      --      |    Inf
>>   315s|     1 |     0 |178488 |     - |  17M|   0 |   0 |1642 |1954 |1642
>> |  11k|  11k|   0 |   0 |-4.728091e+04 |      --      |    Inf
>>   316s|     1 |     0 |182377 |     - |  17M|   0 |   0 |1642 |1954 |1642
>> |  12k|  11k|   0 |   0 |-4.691225e+04 |      --      |    Inf
>>   317s|     1 |     0 |185082 |     - |  17M|   0 |   0 |1642 |1954 |1642
>> |  12k|  11k|   0 |   0 |-4.679669e+04 |      --      |    Inf
>>   317s|     1 |     0 |187730 |     - |  18M|   0 |   0 |1642 |1954 |1642
>> |  12k|  12k|   0 |   0 |-4.661706e+04 |      --      |    Inf
>>   318s|     1 |     0 |190794 |     - |  18M|   0 |   0 |1642 |1954 |1642
>> |  12k|  12k|   0 |   0 |-4.646148e+04 |      --      |    Inf
>>   319s|     1 |     0 |194105 |     - |  18M|   0 |   0 |1642 |1954 |1642
>> |  12k|  12k|   0 |   0 |-4.625012e+04 |      --      |    Inf
>>   319s|     1 |     0 |195560 |     - |  18M|   0 |   0 |1642 |1954 |1642
>> |  12k|  12k|   0 |   0 |-4.618317e+04 |      --      |    Inf
>>   320s|     1 |     0 |198888 |     - |  18M|   0 |   0 |1642 |1954 |1642
>> |  12k|  12k|   0 |   0 |-4.597196e+04 |      --      |    Inf
>>   320s|     1 |     0 |201556 |     - |  18M|   0 |   0 |1642 |1954 |1642
>> |  13k|  12k|   0 |   0 |-4.576530e+04 |      --      |    Inf
>>   321s|     1 |     0 |204882 |     - |  18M|   0 |   0 |1642 |1954 |1642
>> |  13k|  12k|   0 |   0 |-4.559809e+04 |      --      |    Inf
>>  time | node  | left  |LP iter|LP it/n| mem |mdpt |frac |vars |cons |cols
>> |rows |cuts |confs|strbr|  dualbound   | primalbound  |  gap
>>   322s|     1 |     0 |208729 |     - |  18M|   0 |   0 |1642 |1954 |1642
>> |  13k|  12k|   0 |   0 |-4.548202e+04 |      --      |    Inf
>>   323s|     1 |     0 |211493 |     - |  18M|   0 |   0 |1642 |1954 |1642
>> |  13k|  13k|   0 |   0 |-4.535479e+04 |      --      |    Inf
>>   324s|     1 |     0 |215019 |     - |  18M|   0 |   0 |1642 |1954 |1642
>> |  13k|  13k|   0 |   0 |-4.511442e+04 |      --      |    Inf
>>   325s|     1 |     0 |217306 |     - |  18M|   0 |   0 |1642 |1954 |1642
>> |  13k|  13k|   0 |   0 |-4.502556e+04 |      --      |    Inf
>>   326s|     1 |     0 |222603 |     - |  19M|   0 |   0 |1642 |1954 |1642
>> |  13k|  13k|   0 |   0 |-4.488505e+04 |      --      |    Inf
>>   327s|     1 |     0 |226400 |     - |  19M|   0 |   0 |1642 |1954 |1642
>> |  13k|  13k|   0 |   0 |-4.469923e+04 |      --      |    Inf
>>   328s|     1 |     0 |228530 |     - |  19M|   0 |   0 |1642 |1954 |1642
>> |  14k|  13k|   0 |   0 |-4.465199e+04 |      --      |    Inf
>>   328s|     1 |     0 |230941 |     - |  19M|   0 |   0 |1642 |1954 |1642
>> |  14k|  13k|   0 |   0 |-4.457043e+04 |      --      |    Inf
>>   329s|     1 |     0 |232892 |     - |  19M|   0 |   0 |1642 |1954 |1642
>> |  14k|  14k|   0 |   0 |-4.446738e+04 |      --      |    Inf
>>   330s|     1 |     0 |235223 |     - |  19M|   0 |   0 |1642 |1954 |1642
>> |  14k|  14k|   0 |   0 |-4.439970e+04 |      --      |    Inf
>>   331s|     1 |     0 |239259 |     - |  19M|   0 |   0 |1642 |1954 |1642
>> |  14k|  14k|   0 |   0 |-4.427376e+04 |      --      |    Inf
>>   331s|     1 |     0 |241245 |     - |  19M|   0 |   0 |1642 |1954 |1642
>> |  14k|  14k|   0 |   0 |-4.421165e+04 |      --      |    Inf
>>   332s|     1 |     0 |244339 |     - |  19M|   0 |   0 |1642 |1954 |1642
>> |  14k|  14k|   0 |   0 |-4.411815e+04 |      --      |    Inf
>>   333s|     1 |     0 |247197 |     - |  19M|   0 |   0 |1642 |1954 |1642
>> |  15k|  14k|   0 |   0 |-4.408418e+04 |      --      |    Inf
>>   334s|     1 |     0 |250899 |     - |  19M|   0 |   0 |1642 |1954 |1642
>> |  15k|  14k|   0 |   0 |-4.396468e+04 |      --      |    Inf
>>  time | node  | left  |LP iter|LP it/n| mem |mdpt |frac |vars |cons |cols
>> |rows |cuts |confs|strbr|  dualbound   | primalbound  |  gap
>>   335s|     1 |     0 |253169 |     - |  19M|   0 |   0 |1642 |1954 |1642
>> |  15k|  14k|   0 |   0 |-4.392496e+04 |      --      |    Inf
>>   336s|     1 |     0 |256520 |     - |  20M|   0 |   0 |1642 |1954 |1642
>> |  15k|  15k|   0 |   0 |-4.385815e+04 |      --      |    Inf
>>   336s|     1 |     0 |258737 |     - |  20M|   0 |   0 |1642 |1954 |1642
>> |  15k|  15k|   0 |   0 |-4.381557e+04 |      --      |    Inf
>>   337s|     1 |     0 |261276 |     - |  20M|   0 |   0 |1642 |1954 |1642
>> |  15k|  15k|   0 |   0 |-4.376338e+04 |      --      |    Inf
>>   338s|     1 |     0 |264820 |     - |  20M|   0 |   0 |1642 |1954 |1642
>> |  15k|  15k|   0 |   0 |-4.367412e+04 |      --      |    Inf
>>   339s|     1 |     0 |266568 |     - |  20M|   0 |   0 |1642 |1954 |1642
>> |  15k|  15k|   0 |   0 |-4.364212e+04 |      --      |    Inf
>>   340s|     1 |     0 |269009 |     - |  20M|   0 |   0 |1642 |1954 |1642
>> |  16k|  15k|   0 |   0 |-4.361167e+04 |      --      |    Inf
>>   341s|     1 |     0 |272464 |     - |  20M|   0 |   0 |1642 |1954 |1642
>> |  16k|  15k|   0 |   0 |-4.350288e+04 |      --      |    Inf
>>   341s|     1 |     0 |275050 |     - |  20M|   0 |   0 |1642 |1954 |1642
>> |  16k|  15k|   0 |   0 |-4.346188e+04 |      --      |    Inf
>>   342s|     1 |     0 |278169 |     - |  20M|   0 |   0 |1642 |1954 |1642
>> |  16k|  16k|   0 |   0 |-4.340665e+04 |      --      |    Inf
>>   343s|     1 |     0 |280610 |     - |  20M|   0 |   0 |1642 |1954 |1642
>> |  16k|  16k|   0 |   0 |-4.335347e+04 |      --      |    Inf
>>   344s|     1 |     0 |282773 |     - |  21M|   0 |   0 |1642 |1954 |1642
>> |  16k|  16k|   0 |   0 |-4.332565e+04 |      --      |    Inf
>>   345s|     1 |     0 |286887 |     - |  21M|   0 |   0 |1642 |1954 |1642
>> |  16k|  16k|   0 |   0 |-4.326629e+04 |      --      |    Inf
>>   345s|     1 |     1 |286887 |     - |  21M|   0 |   0 |1642 |1954 |1642
>> |  16k|  16k|   0 |   0 |-4.326629e+04 |      --      |    Inf
>>
>>  SCIP Status        : solving was interrupted [user interrupt]
>> Solving Time (sec) : 345.15
>> Solving Nodes      : 1
>> Primal Bound       : +1.00000000000000e+20 (0 solutions)
>> Dual Bound         : -4.32662893880688e+04
>> Gap                : infinite
>>  </SECOND PART>
>>
>>  Best regards,
>>
>>  Ramon.
>>
>>   --
>> Dr. Ramón Casero Cañas
>>
>> Oxford e-Research Centre (OeRC)
>> University of Oxford
>> 7 Keble Rd
>> Oxford OX1 3QG
>>
>> tlf     +44 (0) 1865 610739 <%2B44%20%280%29%201865%20610739>
>> web     http://www.cs.ox.ac.uk/people/Ramon.CaseroCanas
>> photos  http://www.flickr.com/photos/rcasero/
>>
>
>
>
>  --
> Dr. Ramón Casero Cañas
>
> Oxford e-Research Centre (OeRC)
> University of Oxford
> 7 Keble Rd
> Oxford OX1 3QG
>
> tlf     +44 (0) 1865 610739
> web     http://www.cs.ox.ac.uk/people/Ramon.CaseroCanas
> photos  http://www.flickr.com/photos/rcasero/
>
>
> _______________________________________________
> Scip mailing listScip at zib.dehttp://listserv.zib.de/mailman/listinfo/scip
>
>
>


-- 
Dr. Ramón Casero Cañas

Oxford e-Research Centre (OeRC)
University of Oxford
7 Keble Rd
Oxford OX1 3QG

tlf     +44 (0) 1865 610739
web     http://www.cs.ox.ac.uk/people/Ramon.CaseroCanas
photos  http://www.flickr.com/photos/rcasero/
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