SnappyHexMesh crashed when meshing 9 buildings

I am confused about using SnappyHexMesh for meshing 9 buildings.I used the example file called 0.1_0_outdoor_airflow.I just changed the building geometry,other settings is default.
I am using Butterfly,with OpenfoamV1612+ in Windows 10 64bit.The blockmesh worked good.And the snappyhexmesh crashed in the process.My computer memory is not enough? Or some settings wrong?
Could you help me solve this question?
/---------------------------------------------------------------------------
| ========= | |
| \ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \ / O peration | Version: v1612+ |
| \ / A nd | Web: www.OpenFOAM.com |
| \/ M anipulation | |
*---------------------------------------------------------------------------*/
Build : v1612+
Exec : snappyHexMesh
Date : Aug 27 2017
Time : 09:39:54
Host : "default"
PID : 13443
Case : /home/ofuser/workingDir/butterfly/outdoor_airflow
nProcs : 1
sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 10)
allowSystemOperations : Allowing user-supplied system call operations

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Create mesh for time = 0

Read mesh in = 2.14 s

Overall mesh bounding box : (-241.5472 -241.4418 0) (496.4376 536.2438 144.8633)
Relative tolerance : 1e-06
Absolute matching distance : 0.001081851

Reading refinement surfaces.
Read refinement surfaces in = 0.01 s

Reading refinement shells.
Refinement level 3 for all cells inside around_buildings_area.stl
Read refinement shells in = 0 s

Setting refinement level of surface to be consistent with shells.
For geometry outdoor_airflow.stl detected 0 uncached triangles out of 120
Checked shell refinement in = 0 s

Reading features.
Read features in = 0 s

Determining initial surface intersections

Edge intersection testing:
Number of edges : 1684728
Number of edges to retest : 1684728
Number of intersected edges : 5583
Calculated surface intersections in = 1.68 s

Initial mesh : cells:554112 faces:1684728 points:576779
Cells per refinement level:
0 554112

Adding patches for surface regions

Patch Type Region

outdoor_airflow:

6 wall buildings

Added patches in = 0.03 s

Edge intersection testing:
Number of edges : 1684728
Number of edges to retest : 0
Number of intersected edges : 5583
Selecting decompositionMethod none

Refinement phase

Found point (127.4452 147.401 72.43167) in cell 402042 on processor 0

Surface refinement iteration 0

Marked for refinement due to surface intersection : 8820 cells.
Determined cells to refine in = 3.87 s
Selected for refinement : 8820 cells (out of 554112)
Edge intersection testing:
Number of edges : 1883850
Number of edges to retest : 250376
Number of intersected edges : 21198
Refined mesh in = 1.77 s
After refinement surface refinement iteration 0 : cells:615852 faces:1883850 points:652499
Cells per refinement level:
0 545292
1 70560

Surface refinement iteration 1

Marked for refinement due to surface intersection : 38502 cells.
Determined cells to refine in = 0.04 s
Selected for refinement : 40392 cells (out of 615852)
Edge intersection testing:
Number of edges : 2787132
Number of edges to retest : 1118049
Number of intersected edges : 85655
Refined mesh in = 3.17 s
After refinement surface refinement iteration 1 : cells:898596 faces:2787132 points:990317
Cells per refinement level:
0 543235
1 48681
2 306680

Surface refinement iteration 2

Marked for refinement due to surface intersection : 159213 cells.
Determined cells to refine in = 0.1 s
Selected for refinement : 168471 cells (out of 898596)
Edge intersection testing:
Number of edges : 6576117
Number of edges to retest : 4737635


Rhino Model and GH files is in t'he zip file.Please help me solve this question!~~