[Scip] integer variables get assigned non-integer values

[Zhanibek Datbayev]

Hey guys,

I'm trying to tackle a MIP problem using SCIP. All of my variables are
either integer or binary, but sometimes SCIP produces non-integer values.
For example below all of the values are integers except of one which gets
3491.99999999999.

Is that expected behavior? Should I not worry about this kind of values and
just convert them to integers (adding 0.1 before doing that)?

Thanks in advance!

-Zhanibek


x#2#1                                            4215 (obj:0)
x#2#5                                           56830 (obj:0)
x#2#7                                            2688 (obj:0)
x#2#8                                            2048 (obj:0)
x#2#11                                          20315 (obj:0)
x#3#10                                          82685 (obj:0)
x#3#20                                           3492 (obj:0)
x#4#1                                            4215
(obj:0.227623824612884)
x#4#8                                            2048
(obj:0.315622376912749)
x#4#10                                          82685 (obj:0.57256205816212)
x#4#12                                          31615
(obj:0.297351147308957)
x#4#17                                           5120
(obj:0.183683178270458)
x#4#20                                           3492
(obj:0.0293412067324434)
x#5#5                                           56830
(obj:0.355742408976591)
x#5#7                                            2688
(obj:0.0281349154730122)
x#5#11                                          20315
(obj:0.275787370980847)
x#5#13                                           5540
(obj:0.0513514245076417)
x#5#14                                          20735
(obj:0.300966021551557)
x#5#15                                          20735
(obj:0.176821089959373)
x#5#18                                           2432
(obj:3.17376668601277e-07)
x#6#8                                            2048
(obj:0.000522082564132327)
x#6#12                                          31615
(obj:0.00409922840858967)
x#6#14                                          20735
(obj:0.00136236177674599)
x#6#18                                           2432
(obj:-0.117098565680789)
x#7#5                                           56830
(obj:0.00617355213116657)
x#8#1                                            4215
(obj:0.000811301308183401)
x#8#7                                            2688 (obj:0.16746227096924)
x#8#10                                          82685
(obj:-0.00863945585761269)
x#8#11                                          20315
(obj:0.0277269751371639)
x#8#13                                           5540
(obj:0.198066307858387)
x#8#15                                          20735
(obj:0.0286204044109112)
x#8#17                                           5120
(obj:0.0021240047761656)
x#8#20                                           3492
(obj:0.0878842690501064)
x#9#10                                          82685 (obj:0.13516549310118)
x#9#14                                          20735
(obj:0.103485318216289)
x#10#7                                           2688
(obj:0.221488641675372)
x#10#15                                         20735
(obj:0.0966569518978526)
x#10#18                                          2432
(obj:0.00821715230798994)
x#11#1                                           4215
(obj:0.0309833140905398)
x#11#10                                         82685
(obj:0.193435054244922)
x#11#20                              3491.99999999999
(obj:0.272961110760302)
x#12#5                                          56830
(obj:0.170908606920874)
x#12#8                                           2048
(obj:0.0436318450636487)
x#12#12                                         31615
(obj:0.114663635932676)
x#13#11                                         20315
(obj:0.113443166741343)
x#13#13                                          5540
(obj:0.238776163163475)
x#14#1                                           4215
(obj:0.021654717840975)
x#14#7                                           2688
(obj:0.0162037953878893)
x#14#12                                         31615
(obj:0.0780633298974657)
x#14#13                                          5540
(obj:0.0190470353724125)
x#14#17                                          5120
(obj:0.0211936119326756)
x#14#18                                          2432
(obj:0.00580446075062875)
x#15#8                                           2048
(obj:0.0295371902538209)
x#15#11                                         20315
(obj:0.0853453710938286)
x#15#20                                          3492
(obj:0.0192241961849487)
x#16#5                                          56830 (obj:1.08525723231457)
x#16#17                                          5120
(obj:0.252856127702844)
x#17#14                                         20735 (obj:1.07428897058425)
x#18#15                                         20735
(obj:0.624205140104469)
x#1#12                                          31615
(obj:0.294458508903076)
x#1#13                                           5540
(obj:0.0143650582634939)
x#1#14                                          20735
(obj:0.0609253833279164)
x#1#15                                          20735
(obj:0.223615760650029)
x#1#17                                           5120
(obj:0.0466027306419037)
x#1#18                                           2432
(obj:0.0053056051642484)
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