Eigen allocation segmentation fault

I'm trying to make some operations on Pointcloud but when calling VoxelDownSample function i'm getting Segmentation fault signal.

Code:
```
open3d::geometry::PointCloud open3d_source_original;
open3d::geometry::PointCloud open3d_source_down;
createPointCloud(open3d_source_original);
open3d_source_down = *open3d_source_original.VoxelDownSample(0.01);
````

createPointCloud is my function which creates PointCloud from csv file and it works fine.

gdb output:

```
#0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51

#1 0x00007ffff6eb4921 in __GI_abort () at abort.c:79

#2 0x00007ffff7ad6957 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6

#3 0x00007ffff7adcae6 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6

#4 0x00007ffff7adcb21 in std::terminate() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6

#5 0x00007ffff7adcd54 in __cxa_throw () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6

#6 0x00007ffff7b05012 in std::__throw_bad_alloc() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6

#7 0x0000555555563476 in __gnu_cxx::new_allocator >::allocate(unsigned long, void const*) ()

#8 0x0000555555562bec in std::allocator_traits > >::allocate(std::allocator >&, unsigned long) ()

#9 0x0000555555562088 in std::_Vector_base, std::allocator > >::_M_allocate(unsigned long) ()

#10 0x00005555555613ac in Eigen::Matrix* std::vector, std::allocator > >::_M_allocate_and_copy<__gnu_cxx::__normal_iterator const*, std::vector, std::allocator > > > >(unsigned long, __gnu_cxx::__normal_iterator const*, std::vector, std::allocator > > >, __gnu_cxx::__normal_iterator const*, std::vector, std::allocator > > >) ()

#11 0x00005555555606e2 in std::vector, std::allocator > >::operator=(std::vector, std::allocator > > const&) ()
#12 0x000055555555fcfa in open3d::geometry::PointCloud::operator=(open3d::geometry::PointCloud const&) ()

#13 0x000055555555f400 in main ()
```

Valgrind output:

```
==14534== Invalid read of size 8

==14534== at 0x114D59: std::vector, std::allocator > >::begin() const (in /home/rufus/CLionProjects/isolatedSegFault/build/isolatedSegFault)

==14534== by 0x1147EA: std::vector, std::allocator > >::operator=(std::vector, std::allocator > > const&) (in /home/rufus/CLionProjects/isolatedSegFault/build/isolatedSegFault)

==14534== by 0x113CF9: open3d::geometry::PointCloud::operator=(open3d::geometry::PointCloud const&) (in /home/rufus/CLionProjects/isolatedSegFault/build/isolatedSegFault)
==14534== by 0x1133FF: main (in /home/rufus/CLionProjects/isolatedSegFault/build/isolatedSegFault)

==14534== Address 0x61da940 is 0 bytes after a block of size 112 alloc'd

==14534== at 0x4C3217F: operator new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)

==14534== by 0x12C358: allocate (new_allocator.h:111)

==14534== by 0x12C358: allocate (alloc_traits.h:436)

==14534== by 0x12C358: __allocate_guarded, (__gnu_cxx::_Lock_policy)2> > > (allocated_ptr.h:104)

==14534== by 0x12C358: __shared_count > (shared_ptr_base.h:635)

==14534== by 0x12C358: __shared_ptr > (shared_ptr_base.h:1295)

==14534== by 0x12C358: shared_ptr > (shared_ptr.h:344)

==14534== by 0x12C358: allocate_shared > (shared_ptr.h:691)

==14534== by 0x12C358: make_shared (shared_ptr.h:707)

==14534== by 0x12C358: open3d::geometry::PointCloud::VoxelDownSample(double) const (PointCloud.cpp:306)

==14534== by 0x1133DB: main (in /home/rufus/CLionProjects/isolatedSegFault/build/isolatedSegFault)

==14534==

==14534==

==14534== HEAP SUMMARY:

==14534== in use at exit: 8 bytes in 1 blocks

==14534== total heap usage: 19 allocs, 18 frees, 107,576 bytes allocated

==14534==

==14534== LEAK SUMMARY:

==14534== definitely lost: 0 bytes in 0 blocks

==14534== indirectly lost: 0 bytes in 0 blocks

==14534== possibly lost: 0 bytes in 0 blocks

==14534== still reachable: 8 bytes in 1 blocks

==14534== suppressed: 0 bytes in 0 blocks

==14534== Rerun with --leak-check=full to see details of leaked memory

==14534==

==14534== For counts of detected and suppressed errors, rerun with: -v

==14534== Use --track-origins=yes to see where uninitialised values come from

==14534== ERROR SUMMARY: 6 errors from 6 contexts (suppressed: 0 from 0)
```

- Operating system: Ubuntu 18.04
- Is this remote workstation?: no
- How did you install Open3D?: build from source (git clone https://github.com/intel-isl/Open3D)
- Compiler version (if built from source):gcc 7.5

I tried to change macros from Eigen and change compilers but nothing worked.