Trace number 269388

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) 214.949 215.308

General information on the benchmark

Nametaillard/os-taillard-20/
os-taillard-20-100-5.xml
MD5SUM34a8b88c51f5be8704e4ee7ab7f0cafc
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 benchmark1.13783
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables400
Number of constraints7600
Maximum constraint arity2
Maximum domain size1252
Number of constraints which are defined in extension0
Number of constraints which are defined in intension7600
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/node21/watcher-269388-1168980585 -o ROOT/results/node21/solver-269388-1168980585 -C 1800 -M 900 /tmp/evaluation/269388-1168980585/VALCSP /tmp/evaluation/269388-1168980585/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: 0.12 0.22 0.43 2/81 30339
/proc/meminfo: memFree=1442752/2055920 swapFree=4156356/4192956
[pid=30338] ppid=30336 vsize=2656 CPUtime=0
/proc/30338/stat : 30338 (VALCSP) R 30336 30338 30101 0 -1 4194304 426 0 0 0 0 0 0 0 18 0 1 0 246454308 2719744 404 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 8873595 0 0 4096 0 0 0 0 17 1 0 0
/proc/30338/statm: 697 407 63 8 0 369 0

[startup+0.102526 s]
/proc/loadavg: 0.12 0.22 0.43 2/81 30339
/proc/meminfo: memFree=1442752/2055920 swapFree=4156356/4192956
[pid=30338] ppid=30336 vsize=20876 CPUtime=0.09
/proc/30338/stat : 30338 (VALCSP) R 30336 30338 30101 0 -1 4194304 4921 0 0 0 7 2 0 0 18 0 1 0 246454308 21377024 4899 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528607 0 0 4096 0 0 0 0 17 1 0 0
/proc/30338/statm: 5219 4899 65 8 0 4891 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 20876

[startup+0.510601 s]
/proc/loadavg: 0.12 0.22 0.43 2/81 30339
/proc/meminfo: memFree=1442752/2055920 swapFree=4156356/4192956
[pid=30338] ppid=30336 vsize=20876 CPUtime=0.5
/proc/30338/stat : 30338 (VALCSP) R 30336 30338 30101 0 -1 4194304 4921 0 0 0 48 2 0 0 22 0 1 0 246454308 21377024 4899 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/30338/statm: 5219 4899 65 8 0 4891 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 20876

[startup+1.33176 s]
/proc/loadavg: 0.12 0.22 0.43 2/81 30339
/proc/meminfo: memFree=1423360/2055920 swapFree=4156356/4192956
[pid=30338] ppid=30336 vsize=20876 CPUtime=1.32
/proc/30338/stat : 30338 (VALCSP) R 30336 30338 30101 0 -1 4194304 4921 0 0 0 130 2 0 0 25 0 1 0 246454308 21377024 4899 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/30338/statm: 5219 4899 65 8 0 4891 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 20876

[startup+2.97106 s]
/proc/loadavg: 0.19 0.23 0.43 2/81 30339
/proc/meminfo: memFree=1417728/2055920 swapFree=4156356/4192956
[pid=30338] ppid=30336 vsize=32132 CPUtime=2.96
/proc/30338/stat : 30338 (VALCSP) R 30336 30338 30101 0 -1 4194304 7739 0 0 0 293 3 0 0 25 0 1 0 246454308 32903168 7717 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/30338/statm: 8033 7717 65 8 0 7705 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 32132

[startup+6.24768 s]
/proc/loadavg: 0.19 0.23 0.43 2/81 30339
/proc/meminfo: memFree=1405952/2055920 swapFree=4156356/4192956
[pid=30338] ppid=30336 vsize=43904 CPUtime=6.24
/proc/30338/stat : 30338 (VALCSP) R 30336 30338 30101 0 -1 4194304 10667 0 0 0 620 4 0 0 25 0 1 0 246454308 44957696 10645 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/30338/statm: 10976 10645 65 8 0 10648 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 43904

[startup+12.7069 s]
/proc/loadavg: 0.32 0.25 0.43 2/81 30342
/proc/meminfo: memFree=1376896/2055920 swapFree=4156356/4192956
[pid=30338] ppid=30336 vsize=67188 CPUtime=12.69
/proc/30338/stat : 30338 (VALCSP) R 30336 30338 30101 0 -1 4194304 16517 0 0 0 1263 6 0 0 25 0 1 0 246454308 68800512 16495 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/30338/statm: 16797 16495 65 8 0 16469 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 67188

[startup+25.5133 s]
/proc/loadavg: 0.42 0.28 0.44 3/86 30368
/proc/meminfo: memFree=1305688/2055920 swapFree=4156356/4192956
[pid=30338] ppid=30336 vsize=119688 CPUtime=25.48
/proc/30338/stat : 30338 (VALCSP) R 30336 30338 30101 0 -1 4194304 29617 0 0 0 2536 12 0 0 25 0 1 0 246454308 122560512 29595 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/30338/statm: 29922 29595 65 8 0 29594 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 119688

[startup+51.1452 s]
/proc/loadavg: 0.96 0.41 0.48 3/86 30368
/proc/meminfo: memFree=1039000/2055920 swapFree=4156356/4192956
[pid=30338] ppid=30336 vsize=228396 CPUtime=51.1
/proc/30338/stat : 30338 (VALCSP) R 30336 30338 30101 0 -1 4194304 56792 0 0 0 5087 23 0 0 25 0 1 0 246454308 233877504 56770 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/30338/statm: 57099 56770 65 8 0 56771 0
Current children cumulated CPU time (s) 51.1
Current children cumulated vsize (KiB) 228396

[startup+102.4 s]
/proc/loadavg: 1.55 0.66 0.56 3/86 30368
/proc/meminfo: memFree=515416/2055920 swapFree=4156356/4192956
[pid=30338] ppid=30336 vsize=444636 CPUtime=102.33
/proc/30338/stat : 30338 (VALCSP) R 30336 30338 30101 0 -1 4194304 110868 0 0 0 10188 45 0 0 25 0 1 0 246454308 455307264 110846 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/30338/statm: 111159 110846 65 8 0 110831 0
Current children cumulated CPU time (s) 102.33
Current children cumulated vsize (KiB) 444636

[startup+162.476 s]
/proc/loadavg: 1.84 0.92 0.65 3/86 30368
/proc/meminfo: memFree=16160/2055920 swapFree=4156356/4192956
[pid=30338] ppid=30336 vsize=690440 CPUtime=162.36
/proc/30338/stat : 30338 (VALCSP) R 30336 30338 30101 0 -1 4194304 172321 0 0 0 16165 71 0 0 25 0 1 0 246454308 707010560 172299 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/30338/statm: 172610 172299 65 8 0 172282 0
Current children cumulated CPU time (s) 162.36
Current children cumulated vsize (KiB) 690440



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+215.163 s]
/proc/loadavg: 1.97 1.09 0.73 3/86 30407
/proc/meminfo: memFree=577104/2055920 swapFree=4156356/4192956
[pid=30338] ppid=30336 vsize=927260 CPUtime=214.8
/proc/30338/stat : 30338 (VALCSP) R 30336 30338 30101 0 -1 4194304 231511 0 0 0 21385 95 0 0 25 0 1 0 246454308 949514240 231489 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/30338/statm: 231815 231489 65 8 0 231487 0
Current children cumulated CPU time (s) 214.8
Current children cumulated vsize (KiB) 927260

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 215.308
CPU time (s): 214.949
CPU user time (s): 213.856
CPU system time (s): 1.09283
CPU usage (%): 99.8334
Max. virtual memory (cumulated for all children) (KiB): 927260

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 213.856
system time used= 1.09283
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 231511
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= 4627

runsolver used 0.201969 s user time and 0.572912 s system time

The end



Launcher Data (download as text)




Begin job on node21 on Tue Jan 16 20:49:54 UTC 2007


IDJOB= 269388
IDBENCH= 6583
IDSOLVER= 90
FILE ID= node21/269388-1168980585

PBS_JOBID= 3566318

Free space on /tmp= 66564 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-20/os-taillard-20-100-5.xml
COMMAND LINE= /tmp/evaluation/269388-1168980585/VALCSP /tmp/evaluation/269388-1168980585/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node21/watcher-269388-1168980585 -o ROOT/results/node21/solver-269388-1168980585 -C 1800 -M 900  /tmp/evaluation/269388-1168980585/VALCSP /tmp/evaluation/269388-1168980585/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  34a8b88c51f5be8704e4ee7ab7f0cafc

RANDOM SEED= 401629346

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		: 3000.261
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		: 3000.261
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:       1443168 kB
Buffers:         53552 kB
Cached:         451356 kB
SwapCached:       3052 kB
Active:         124612 kB
Inactive:       409780 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1443168 kB
SwapTotal:     4192956 kB
SwapFree:      4156356 kB
Dirty:            1308 kB
Writeback:           0 kB
Mapped:          38296 kB
Slab:            63600 kB
Committed_AS:  4515588 kB
PageTables:       1988 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= 66563 MiB



End job on node21 on Tue Jan 16 20:53:34 UTC 2007