execve("/usr/bin/optirun", ["optirun", "glxspheres64"], 0x7ffc681bf278 /* 45 vars */) = 0
brk(NULL)                               = 0x55cd461fe000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=206219, ...}) = 0
mmap(NULL, 206219, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f5eeec2f000
close(3)                                = 0
openat(AT_FDCWD, "/usr/lib/libglib-2.0.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0p\241\1\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=1129568, ...}) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5eeec2d000
mmap(NULL, 3227752, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f5eee729000
mprotect(0x7f5eee83c000, 2093056, PROT_NONE) = 0
mmap(0x7f5eeea3b000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x112000) = 0x7f5eeea3b000
mmap(0x7f5eeea3d000, 104, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f5eeea3d000
close(3)                                = 0
openat(AT_FDCWD, "/usr/lib/librt.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0000\36\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=30920, ...}) = 0
mmap(NULL, 2128376, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f5eee521000
mprotect(0x7f5eee528000, 2093056, PROT_NONE) = 0
mmap(0x7f5eee727000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6000) = 0x7f5eee727000
close(3)                                = 0
openat(AT_FDCWD, "/usr/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`\20\2\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=2065784, ...}) = 0
mmap(NULL, 3893488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f5eee16a000
mprotect(0x7f5eee318000, 2093056, PROT_NONE) = 0
mmap(0x7f5eee517000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1ad000) = 0x7f5eee517000
mmap(0x7f5eee51d000, 14576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f5eee51d000
close(3)                                = 0
openat(AT_FDCWD, "/usr/lib/libpcre.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\240\26\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=469216, ...}) = 0
mmap(NULL, 2564584, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f5eedef7000
mprotect(0x7f5eedf68000, 2097152, PROT_NONE) = 0
mmap(0x7f5eee168000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x71000) = 0x7f5eee168000
close(3)                                = 0
openat(AT_FDCWD, "/usr/lib/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0]\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=145336, ...}) = 0
mmap(NULL, 2216400, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f5eedcd9000
mprotect(0x7f5eedcf2000, 2093056, PROT_NONE) = 0
mmap(0x7f5eedef1000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x18000) = 0x7f5eedef1000
mmap(0x7f5eedef3000, 12752, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f5eedef3000
close(3)                                = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5eeec2b000
arch_prctl(ARCH_SET_FS, 0x7f5eeec2c180) = 0
mprotect(0x7f5eee517000, 16384, PROT_READ) = 0
mprotect(0x7f5eedef1000, 4096, PROT_READ) = 0
mprotect(0x7f5eee168000, 4096, PROT_READ) = 0
mprotect(0x7f5eee727000, 4096, PROT_READ) = 0
mprotect(0x7f5eeea3b000, 4096, PROT_READ) = 0
mprotect(0x55cd44ad1000, 4096, PROT_READ) = 0
mprotect(0x7f5eeec62000, 4096, PROT_READ) = 0
munmap(0x7f5eeec2f000, 206219)          = 0
set_tid_address(0x7f5eeec2c450)         = 2756
set_robust_list(0x7f5eeec2c460, 24)     = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x7f5eedcde770, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f5eedceadd0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7f5eedcde810, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5eedceadd0}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
brk(NULL)                               = 0x55cd461fe000
brk(0x55cd4621f000)                     = 0x55cd4621f000
rt_sigaction(SIGHUP, {sa_handler=0x55cd448cd7f0, sa_mask=[HUP], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7f5eee19e8e0}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGTERM, {sa_handler=0x55cd448cd7f0, sa_mask=[TERM], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7f5eee19e8e0}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGINT, {sa_handler=0x55cd448cd7f0, sa_mask=[INT], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7f5eee19e8e0}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
rt_sigaction(SIGQUIT, {sa_handler=0x55cd448cd7f0, sa_mask=[QUIT], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7f5eee19e8e0}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=0}, 8) = 0
openat(AT_FDCWD, "/usr/share/locale/locale.alias", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=2997, ...}) = 0
read(3, "# Locale name alias data base.\n#"..., 4096) = 2997
read(3, "", 4096)                       = 0
close(3)                                = 0
futex(0x7f5eeea3ce28, FUTEX_WAKE_PRIVATE, 2147483647) = 0
openat(AT_FDCWD, "/etc/bumblebee/bumblebee.conf", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=2905, ...}) = 0
read(3, "# Configuration file for Bumbleb"..., 4096) = 2905
read(3, "", 4096)                       = 0
close(3)                                = 0
socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0) = 3
connect(3, {sa_family=AF_UNIX, sun_path="/var/run/bumblebee.socket"}, 110) = 0
sendto(3, "Query LibraryPath\0", 18, MSG_NOSIGNAL, NULL, 0) = 18
recvfrom(3, "Value: /usr/lib/nvidia:/usr/lib3"..., 1024, 0, NULL, NULL) = 62
sendto(3, "Query VirtualDisplay\0", 21, MSG_NOSIGNAL, NULL, 0) = 21
recvfrom(3, "Value: :8\n\0", 1024, 0, NULL, NULL) = 11
access("/usr/local/sbin/vglrun", X_OK)  = -1 ENOENT (No such file or directory)
access("/usr/local/bin/vglrun", X_OK)   = -1 ENOENT (No such file or directory)
access("/usr/bin/vglrun", X_OK)         = 0
access("/usr/local/sbin/vglclient", X_OK) = -1 ENOENT (No such file or directory)
access("/usr/local/bin/vglclient", X_OK) = -1 ENOENT (No such file or directory)
access("/usr/bin/vglclient", X_OK)      = 0
sendto(3, "Connect \0", 9, MSG_NOSIGNAL, NULL, 0) = 9
recvfrom(3,