Trace number 269503

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) 115.396 115.43

General information on the benchmark

Nametaillard/os-taillard-10/
os-taillard-10-105-5.xml
MD5SUM7b8cab6ec70ebd45de2b8c6678d6df2b
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.215966
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables100
Number of constraints900
Maximum constraint arity2
Maximum domain size565
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/node56/watcher-269503-1168980838 -o ROOT/results/node56/solver-269503-1168980838 -C 1800 -M 900 /tmp/evaluation/269503-1168980838/VALCSP /tmp/evaluation/269503-1168980838/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: 1.63 1.06 0.74 3/73 16776
/proc/meminfo: memFree=1714616/2055920 swapFree=4184804/4192956
[pid=16775] ppid=16773 vsize=3052 CPUtime=0
/proc/16775/stat : 16775 (VALCSP) R 16773 16775 16458 0 -1 4194304 504 0 0 0 0 0 0 0 18 0 1 0 246482351 3125248 482 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 10462843 0 0 4096 0 0 0 0 17 1 0 0
/proc/16775/statm: 763 489 64 8 0 435 0

[startup+0.102538 s]
/proc/loadavg: 1.63 1.06 0.74 3/73 16776
/proc/meminfo: memFree=1714616/2055920 swapFree=4184804/4192956
[pid=16775] ppid=16773 vsize=3844 CPUtime=0.09
/proc/16775/stat : 16775 (VALCSP) R 16773 16775 16458 0 -1 4194304 719 0 0 0 9 0 0 0 18 0 1 0 246482351 3936256 697 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529251 0 0 4096 0 0 0 0 17 1 0 0
/proc/16775/statm: 961 697 64 8 0 633 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3844

[startup+0.510577 s]
/proc/loadavg: 1.63 1.06 0.74 3/73 16776
/proc/meminfo: memFree=1714616/2055920 swapFree=4184804/4192956
[pid=16775] ppid=16773 vsize=8332 CPUtime=0.5
/proc/16775/stat : 16775 (VALCSP) R 16773 16775 16458 0 -1 4194304 1821 0 0 0 50 0 0 0 21 0 1 0 246482351 8531968 1799 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/16775/statm: 2083 1799 64 8 0 1755 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 8332

[startup+1.33166 s]
/proc/loadavg: 1.63 1.06 0.74 3/73 16776
/proc/meminfo: memFree=1696120/2055920 swapFree=4184804/4192956
[pid=16775] ppid=16773 vsize=14800 CPUtime=1.32
/proc/16775/stat : 16775 (VALCSP) R 16773 16775 16458 0 -1 4194304 3449 0 0 0 131 1 0 0 25 0 1 0 246482351 15155200 3428 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 10462843 0 0 4096 0 0 0 0 17 1 0 0
/proc/16775/statm: 3700 3434 64 8 0 3372 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 14800

[startup+2.96882 s]
/proc/loadavg: 1.63 1.06 0.74 3/73 16776
/proc/meminfo: memFree=1680248/2055920 swapFree=4184804/4192956
[pid=16775] ppid=16773 vsize=28528 CPUtime=2.96
/proc/16775/stat : 16775 (VALCSP) R 16773 16775 16458 0 -1 4194304 6877 0 0 0 293 3 0 0 25 0 1 0 246482351 29212672 6855 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/16775/statm: 7132 6855 64 8 0 6804 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 28528

[startup+6.25214 s]
/proc/loadavg: 1.66 1.07 0.75 3/73 16776
/proc/meminfo: memFree=1638776/2055920 swapFree=4184804/4192956
[pid=16775] ppid=16773 vsize=57304 CPUtime=6.24
/proc/16775/stat : 16775 (VALCSP) R 16773 16775 16458 0 -1 4194304 14062 0 0 0 618 6 0 0 25 0 1 0 246482351 58679296 14040 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/16775/statm: 14326 14040 64 8 0 13998 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 57304

[startup+12.7058 s]
/proc/loadavg: 1.69 1.09 0.76 3/73 16776
/proc/meminfo: memFree=1559352/2055920 swapFree=4184804/4192956
[pid=16775] ppid=16773 vsize=107464 CPUtime=12.69
/proc/16775/stat : 16775 (VALCSP) R 16773 16775 16458 0 -1 4194304 26625 0 0 0 1257 12 0 0 25 0 1 0 246482351 110043136 26603 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/16775/statm: 26866 26603 64 8 0 26538 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 107464

[startup+25.516 s]
/proc/loadavg: 1.75 1.13 0.78 3/73 16776
/proc/meminfo: memFree=1406136/2055920 swapFree=4184804/4192956
[pid=16775] ppid=16773 vsize=208048 CPUtime=25.5
/proc/16775/stat : 16775 (VALCSP) R 16773 16775 16458 0 -1 4194304 51750 0 0 0 2528 22 0 0 25 0 1 0 246482351 213041152 51728 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/16775/statm: 52012 51728 64 8 0 51684 0
Current children cumulated CPU time (s) 25.5
Current children cumulated vsize (KiB) 208048

[startup+51.1355 s]
/proc/loadavg: 1.84 1.20 0.81 3/73 16776
/proc/meminfo: memFree=1084088/2055920 swapFree=4184804/4192956
[pid=16775] ppid=16773 vsize=411988 CPUtime=51.11
/proc/16775/stat : 16775 (VALCSP) R 16773 16775 16458 0 -1 4194304 102732 0 0 0 5067 44 0 0 25 0 1 0 246482351 421875712 102710 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/16775/statm: 102997 102710 64 8 0 102669 0
Current children cumulated CPU time (s) 51.11
Current children cumulated vsize (KiB) 411988

[startup+102.372 s]
/proc/loadavg: 1.93 1.32 0.87 3/73 16776
/proc/meminfo: memFree=461560/2055920 swapFree=4184804/4192956
[pid=16775] ppid=16773 vsize=823300 CPUtime=102.33
/proc/16775/stat : 16775 (VALCSP) R 16773 16775 16458 0 -1 4194304 205569 0 0 0 10148 85 0 0 25 0 1 0 246482351 843059200 205547 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/16775/statm: 205825 205547 64 8 0 205497 0
Current children cumulated CPU time (s) 102.33
Current children cumulated vsize (KiB) 823300



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+115.284 s]
/proc/loadavg: 1.94 1.35 0.88 3/73 16776
/proc/meminfo: memFree=299768/2055920 swapFree=4184804/4192956
[pid=16775] ppid=16773 vsize=921904 CPUtime=115.25
/proc/16775/stat : 16775 (VALCSP) R 16773 16775 16458 0 -1 4194304 230220 0 0 0 11428 97 0 0 25 0 1 0 246482351 944029696 230198 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/16775/statm: 230476 230198 64 8 0 230148 0
Current children cumulated CPU time (s) 115.25
Current children cumulated vsize (KiB) 921904

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 115.43
CPU time (s): 115.396
CPU user time (s): 114.284
CPU system time (s): 1.11283
CPU usage (%): 99.9706
Max. virtual memory (cumulated for all children) (KiB): 921904

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 114.284
system time used= 1.11283
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230220
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= 282

runsolver used 0.104984 s user time and 0.314952 s system time

The end



Launcher Data (download as text)




Begin job on node56 on Tue Jan 16 20:53:59 UTC 2007


IDJOB= 269503
IDBENCH= 6756
IDSOLVER= 90
FILE ID= node56/269503-1168980838

PBS_JOBID= 3566364

Free space on /tmp= 66564 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-10/os-taillard-10-105-5.xml
COMMAND LINE= /tmp/evaluation/269503-1168980838/VALCSP /tmp/evaluation/269503-1168980838/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node56/watcher-269503-1168980838 -o ROOT/results/node56/solver-269503-1168980838 -C 1800 -M 900  /tmp/evaluation/269503-1168980838/VALCSP /tmp/evaluation/269503-1168980838/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  7b8cab6ec70ebd45de2b8c6678d6df2b

RANDOM SEED= 386442888

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		: 3000.232
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	: 5914.62
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		: 3000.232
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:       1721368 kB
Buffers:         30696 kB
Cached:         140896 kB
SwapCached:       2216 kB
Active:         102824 kB
Inactive:       157768 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1721368 kB
SwapTotal:     4192956 kB
SwapFree:      4184804 kB
Dirty:             784 kB
Writeback:           0 kB
Mapped:          96748 kB
Slab:            59300 kB
Committed_AS:  4801144 kB
PageTables:       1956 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 node56 on Tue Jan 16 20:55:58 UTC 2007