Crash observed when executing multislab policy

[bigdata2]

Steps to reproduce:
cd Tests/TestsVictimCache
../../lsm-sim -a 1 -w 0 -p multislab -s 6000000 -S 60 -M -f ./test5
output:
slab -s 6000000 -S 60 -M -f ./test5
this is e1
Initialized with memcachier slab classes
performing trace analysis on apps 1,
with steal weights of
policy multislab
using trace file ./test5
rounding off
utilization rate 1
start counting hits at t = 0
request limit 0
global mem 6000000
use tax 0
tax rate 0.05
cleaning width 100
time app subpolicy target_mem credit_bytes share min_mem min_mem_pct steal_size bytes_in_use need hits accesses shadow_q_hits survivor_items survivor_bytes evicted_items evicted_bytes hit_rate
0 1 multislab 701423104 0 701423104 526067328 75 0 0 inf 0 0 0 0 0 0 0 -nan
Segmentation fault (core dumped)