Trace number 269515

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
VALCSP 3.1? (MO) 107.223 107.739

General information on the benchmark

Nametaillard/
os-taillard-10/os-taillard-10-95-6.xml
MD5SUM376c4d5b9e80417bbb3a28982bb1287e
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark24.3523
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables100
Number of constraints900
Maximum constraint arity2
Maximum domain size585
Number of constraints which are defined in extension0
Number of constraints which are defined in intension900
Global constraints used (with number of constraints)

Solver Data (download as text)



Verifier Data (download as text)




ERROR: Unexpected answer ! (SAT/UNSAT expected)
Got answer: 



Watcher Data (download as text)




runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node2/watcher-269515-1168980857 -o ROOT/results/node2/solver-269515-1168980857 -C 1800 -M 900 /tmp/evaluation/269515-1168980857/VALCSP /tmp/evaluation/269515-1168980857/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB

/proc/loadavg: 1.80 1.39 1.34 5/86 8806
/proc/meminfo: memFree=1633368/2055920 swapFree=4180552/4192956
[pid=8805] ppid=8803 vsize=1600 CPUtime=0
/proc/8805/stat : 8805 (VALCSP) R 8803 8805 8409 0 -1 4194304 146 0 0 0 0 0 0 0 20 0 1 0 246481342 1638400 124 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 10970747 0 0 4096 0 0 0 0 17 1 0 0
/proc/8805/statm: 400 124 63 8 0 72 0

[startup+0.105393 s]
/proc/loadavg: 1.80 1.39 1.34 5/86 8806
/proc/meminfo: memFree=1633368/2055920 swapFree=4180552/4192956
[pid=8805] ppid=8803 vsize=3844 CPUtime=0.09
/proc/8805/stat : 8805 (VALCSP) R 8803 8805 8409 0 -1 4194304 715 0 0 0 9 0 0 0 20 0 1 0 246481342 3936256 693 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528702 0 0 4096 0 0 0 0 17 1 0 0
/proc/8805/statm: 961 693 64 8 0 633 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3844

[startup+0.513466 s]
/proc/loadavg: 1.80 1.39 1.34 5/86 8806
/proc/meminfo: memFree=1633368/2055920 swapFree=4180552/4192956
[pid=8805] ppid=8803 vsize=7936 CPUtime=0.5
/proc/8805/stat : 8805 (VALCSP) R 8803 8805 8409 0 -1 4194304 1724 0 0 0 49 1 0 0 24 0 1 0 246481342 8126464 1702 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/8805/statm: 1984 1702 64 8 0 1656 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 7936

[startup+1.33462 s]
/proc/loadavg: 1.80 1.39 1.34 3/86 8806
/proc/meminfo: memFree=1611992/2055920 swapFree=4180552/4192956
[pid=8805] ppid=8803 vsize=15328 CPUtime=1.31
/proc/8805/stat : 8805 (VALCSP) R 8803 8805 8409 0 -1 4194304 3576 0 0 0 130 1 0 0 25 0 1 0 246481342 15695872 3554 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/8805/statm: 3832 3554 64 8 0 3504 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 15328

[startup+2.97592 s]
/proc/loadavg: 1.80 1.39 1.34 3/86 8806
/proc/meminfo: memFree=1602072/2055920 swapFree=4180552/4192956
[pid=8805] ppid=8803 vsize=30508 CPUtime=2.95
/proc/8805/stat : 8805 (VALCSP) R 8803 8805 8409 0 -1 4194304 7373 0 0 0 292 3 0 0 25 0 1 0 246481342 31240192 7351 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134538694 0 0 4096 0 0 0 0 17 1 0 0
/proc/8805/statm: 7627 7351 64 8 0 7299 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 30508

[startup+6.25552 s]
/proc/loadavg: 1.82 1.40 1.35 3/86 8806
/proc/meminfo: memFree=1554840/2055920 swapFree=4180552/4192956
[pid=8805] ppid=8803 vsize=59812 CPUtime=6.21
/proc/8805/stat : 8805 (VALCSP) R 8803 8805 8409 0 -1 4194304 14700 0 0 0 615 6 0 0 25 0 1 0 246481342 61247488 14678 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/8805/statm: 14953 14678 64 8 0 14625 0
Current children cumulated CPU time (s) 6.21
Current children cumulated vsize (KiB) 59812

[startup+12.7217 s]
/proc/loadavg: 1.83 1.41 1.35 3/86 8806
/proc/meminfo: memFree=1471256/2055920 swapFree=4180552/4192956
[pid=8805] ppid=8803 vsize=115516 CPUtime=12.65
/proc/8805/stat : 8805 (VALCSP) R 8803 8805 8409 0 -1 4194304 28612 0 0 0 1253 12 0 0 25 0 1 0 246481342 118288384 28590 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528697 0 0 4096 0 0 0 0 17 1 0 0
/proc/8805/statm: 28879 28590 64 8 0 28551 0
Current children cumulated CPU time (s) 12.65
Current children cumulated vsize (KiB) 115516

[startup+25.5371 s]
/proc/loadavg: 1.87 1.43 1.36 3/86 8806
/proc/meminfo: memFree=1314136/2055920 swapFree=4180552/4192956
[pid=8805] ppid=8803 vsize=226132 CPUtime=25.41
/proc/8805/stat : 8805 (VALCSP) R 8803 8805 8409 0 -1 4194304 56270 0 0 0 2517 24 0 0 25 0 1 0 246481342 231559168 56248 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/8805/statm: 56533 56248 64 8 0 56205 0
Current children cumulated CPU time (s) 25.41
Current children cumulated vsize (KiB) 226132

[startup+51.1778 s]
/proc/loadavg: 1.91 1.48 1.38 3/86 8806
/proc/meminfo: memFree=1002200/2055920 swapFree=4180552/4192956
[pid=8805] ppid=8803 vsize=443140 CPUtime=50.92
/proc/8805/stat : 8805 (VALCSP) R 8803 8805 8409 0 -1 4194304 110548 0 0 0 5047 45 0 0 25 0 1 0 246481342 453775360 110526 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/8805/statm: 110785 110526 64 8 0 110457 0
Current children cumulated CPU time (s) 50.92
Current children cumulated vsize (KiB) 443140

[startup+102.458 s]
/proc/loadavg: 1.96 1.56 1.41 3/86 8806
/proc/meminfo: memFree=373016/2055920 swapFree=4180552/4192956
[pid=8805] ppid=8803 vsize=880192 CPUtime=101.97
/proc/8805/stat : 8805 (VALCSP) R 8803 8805 8409 0 -1 4194304 219786 0 0 0 10106 91 0 0 25 0 1 0 246481342 901316608 219764 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529341 0 0 4096 0 0 0 0 17 1 0 0
/proc/8805/statm: 220048 219764 64 8 0 219720 0
Current children cumulated CPU time (s) 101.97
Current children cumulated vsize (KiB) 880192



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+107.591 s]
/proc/loadavg: 1.96 1.56 1.41 3/86 8806
/proc/meminfo: memFree=297944/2055920 swapFree=4180552/4192956
[pid=8805] ppid=8803 vsize=922564 CPUtime=107.08
/proc/8805/stat : 8805 (VALCSP) R 8803 8805 8409 0 -1 4194304 230406 0 0 0 10612 96 0 0 25 0 1 0 246481342 944705536 230384 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/8805/statm: 230641 230384 64 8 0 230313 0
Current children cumulated CPU time (s) 107.08
Current children cumulated vsize (KiB) 922564

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Child ended because it received signal 15 (SIGTERM)
Real time (s): 107.739
CPU time (s): 107.223
CPU user time (s): 106.121
CPU system time (s): 1.10183
CPU usage (%): 99.521
Max. virtual memory (cumulated for all children) (KiB): 922564

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 106.121
system time used= 1.10183
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230406
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 6
involuntary context switches= 3346

runsolver used 0.147977 s user time and 0.332949 s system time

The end



Launcher Data (download as text)




Begin job on node2 on Tue Jan 16 20:54:17 UTC 2007


IDJOB= 269515
IDBENCH= 6775
IDSOLVER= 90
FILE ID= node2/269515-1168980857

PBS_JOBID= 3566018

Free space on /tmp= 66564 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-10/os-taillard-10-95-6.xml
COMMAND LINE= /tmp/evaluation/269515-1168980857/VALCSP /tmp/evaluation/269515-1168980857/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-269515-1168980857 -o ROOT/results/node2/solver-269515-1168980857 -C 1800 -M 900  /tmp/evaluation/269515-1168980857/VALCSP /tmp/evaluation/269515-1168980857/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  376c4d5b9e80417bbb3a28982bb1287e

RANDOM SEED= 438253740

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.259
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5931.00
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.259
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1633848 kB
Buffers:         43088 kB
Cached:         137008 kB
SwapCached:        512 kB
Active:         177660 kB
Inactive:       162152 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1633848 kB
SwapTotal:     4192956 kB
SwapFree:      4180552 kB
Dirty:             768 kB
Writeback:           0 kB
Mapped:         171844 kB
Slab:            66924 kB
Committed_AS:  6517764 kB
PageTables:       2548 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66564 MiB



End job on node2 on Tue Jan 16 20:56:05 UTC 2007