[SCIP] vbcfile 4.0.1

Gotzes, Uwe Dr. Uwe.Gotzes at open-grid-europe.com
Thu Nov 16 12:01:20 CET 2017


Hi,

I have observed, that the vbcfile is generated in a different manner than before in scip 4.0.1.

Here is a small example

#TYPE: COMPLETE TREE
#TIME: SET
#BOUNDS: SET
#INFORMATION: STANDARD
#NODE_NUMBER: NONE
00:00:00.17 N 0 1 3
00:00:00.17 I 1 \inode:\t1 (000000000075B280)\idepth:\t0\nvar:\t-\nbound:\t-100000000000000000000.000000
00:00:00.18 L 10.000000
00:00:00.18 A 1 \nfound better solution: 1.000000
00:00:00.18 P 1 14
00:00:00.18 L 1.000000
00:00:00.18 P 1 11
00:00:00.18 A 1 \nfound better solution: 0.000000
00:00:00.18 P 1 14
00:00:00.18 L 0.000000

The occurrence of L and A is new, correct? I assume that A indicates, that a better upper bound was found. Hence I would expect a line with the indicator U (upper bound) before a line with the indicator A appears. Or do I get something wrong?

Best
Uwe

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