Trace number 269504

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) 111.892 111.932

General information on the benchmark

Nametaillard/os-taillard-10/
os-taillard-10-100-7.xml
MD5SUM508a372afa45a3d958684f762290b9bc
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 benchmark0.663898
SatisfiableYES
(Un)Satisfiability was proved
Number of variables100
Number of constraints900
Maximum constraint arity2
Maximum domain size595
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/node3/watcher-269504-1168980840 -o ROOT/results/node3/solver-269504-1168980840 -C 1800 -M 900 /tmp/evaluation/269504-1168980840/VALCSP /tmp/evaluation/269504-1168980840/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: 1.74 1.18 1.00 5/86 21423
/proc/meminfo: memFree=1404588/2055920 swapFree=4191880/4192956
[pid=21422] ppid=21420 vsize=3316 CPUtime=0
/proc/21422/stat : 21422 (VALCSP) R 21420 21422 21153 0 -1 4194304 568 0 0 0 0 0 0 0 18 0 1 0 246479945 3395584 546 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 11359867 0 0 4096 0 0 0 0 17 1 0 0
/proc/21422/statm: 829 554 64 8 0 501 0

[startup+0.103664 s]
/proc/loadavg: 1.74 1.18 1.00 5/86 21423
/proc/meminfo: memFree=1404588/2055920 swapFree=4191880/4192956
[pid=21422] ppid=21420 vsize=4108 CPUtime=0.09
/proc/21422/stat : 21422 (VALCSP) R 21420 21422 21153 0 -1 4194304 757 0 0 0 9 0 0 0 18 0 1 0 246479945 4206592 735 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/21422/statm: 1027 735 64 8 0 699 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4108

[startup+0.51173 s]
/proc/loadavg: 1.74 1.18 1.00 5/86 21423
/proc/meminfo: memFree=1404588/2055920 swapFree=4191880/4192956
[pid=21422] ppid=21420 vsize=7540 CPUtime=0.5
/proc/21422/stat : 21422 (VALCSP) R 21420 21422 21153 0 -1 4194304 1643 0 0 0 50 0 0 0 22 0 1 0 246479945 7720960 1621 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/21422/statm: 1885 1621 64 8 0 1557 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 7540

[startup+1.33186 s]
/proc/loadavg: 1.74 1.18 1.00 3/86 21423
/proc/meminfo: memFree=1393680/2055920 swapFree=4191880/4192956
[pid=21422] ppid=21420 vsize=14668 CPUtime=1.32
/proc/21422/stat : 21422 (VALCSP) R 21420 21422 21153 0 -1 4194304 3414 0 0 0 131 1 0 0 25 0 1 0 246479945 15020032 3392 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528702 0 0 4096 0 0 0 0 17 1 0 0
/proc/21422/statm: 3667 3392 64 8 0 3339 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 14668

[startup+2.96913 s]
/proc/loadavg: 1.74 1.18 1.00 3/86 21423
/proc/meminfo: memFree=1384336/2055920 swapFree=4191880/4192956
[pid=21422] ppid=21420 vsize=28660 CPUtime=2.95
/proc/21422/stat : 21422 (VALCSP) R 21420 21422 21153 0 -1 4194304 6903 0 0 0 292 3 0 0 25 0 1 0 246479945 29347840 6881 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/21422/statm: 7165 6881 64 8 0 6837 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 28660

[startup+6.25266 s]
/proc/loadavg: 1.76 1.20 1.01 3/86 21423
/proc/meminfo: memFree=1356112/2055920 swapFree=4191880/4192956
[pid=21422] ppid=21420 vsize=54664 CPUtime=6.24
/proc/21422/stat : 21422 (VALCSP) R 21420 21422 21153 0 -1 4194304 13406 0 0 0 617 7 0 0 25 0 1 0 246479945 55975936 13384 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/21422/statm: 13666 13384 64 8 0 13338 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 54664

[startup+12.7147 s]
/proc/loadavg: 1.78 1.21 1.01 3/86 21423
/proc/meminfo: memFree=1298064/2055920 swapFree=4191880/4192956
[pid=21422] ppid=21420 vsize=110104 CPUtime=12.7
/proc/21422/stat : 21422 (VALCSP) R 21420 21422 21153 0 -1 4194304 27283 0 0 0 1256 14 0 0 25 0 1 0 246479945 112746496 27261 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/21422/statm: 27526 27261 64 8 0 27198 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 110104

[startup+25.5358 s]
/proc/loadavg: 1.83 1.25 1.03 3/86 21423
/proc/meminfo: memFree=1195856/2055920 swapFree=4191880/4192956
[pid=21422] ppid=21420 vsize=214780 CPUtime=25.52
/proc/21422/stat : 21422 (VALCSP) R 21420 21422 21153 0 -1 4194304 53447 0 0 0 2526 26 0 0 25 0 1 0 246479945 219934720 53425 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528695 0 0 4096 0 0 0 0 17 1 0 0
/proc/21422/statm: 53695 53425 64 8 0 53367 0
Current children cumulated CPU time (s) 25.52
Current children cumulated vsize (KiB) 214780

[startup+51.1759 s]
/proc/loadavg: 1.89 1.31 1.05 3/86 21423
/proc/meminfo: memFree=985296/2055920 swapFree=4191880/4192956
[pid=21422] ppid=21420 vsize=423340 CPUtime=51.15
/proc/21422/stat : 21422 (VALCSP) R 21420 21422 21153 0 -1 4194304 105595 0 0 0 5063 52 0 0 25 0 1 0 246479945 433500160 105573 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528658 0 0 4096 0 0 0 0 17 1 0 0
/proc/21422/statm: 105835 105573 64 8 0 105507 0
Current children cumulated CPU time (s) 51.15
Current children cumulated vsize (KiB) 423340

[startup+102.45 s]
/proc/loadavg: 1.95 1.41 1.10 3/86 21423
/proc/meminfo: memFree=562000/2055920 swapFree=4191880/4192956
[pid=21422] ppid=21420 vsize=850624 CPUtime=102.41
/proc/21422/stat : 21422 (VALCSP) R 21420 21422 21153 0 -1 4194304 212390 0 0 0 10137 104 0 0 25 0 1 0 246479945 871038976 212368 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/21422/statm: 212656 212368 64 8 0 212328 0
Current children cumulated CPU time (s) 102.41
Current children cumulated vsize (KiB) 850624



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+111.787 s]
/proc/loadavg: 1.96 1.43 1.11 3/86 21423
/proc/meminfo: memFree=482128/2055920 swapFree=4191880/4192956
[pid=21422] ppid=21420 vsize=921904 CPUtime=111.74
/proc/21422/stat : 21422 (VALCSP) R 21420 21422 21153 0 -1 4194304 230230 0 0 0 11061 113 0 0 25 0 1 0 246479945 944029696 230208 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528720 0 0 4096 0 0 0 0 17 1 0 0
/proc/21422/statm: 230476 230208 64 8 0 230148 0
Current children cumulated CPU time (s) 111.74
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): 111.932
CPU time (s): 111.892
CPU user time (s): 110.619
CPU system time (s): 1.27281
CPU usage (%): 99.964
Max. virtual memory (cumulated for all children) (KiB): 921904

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 110.619
system time used= 1.27281
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230230
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= 7
involuntary context switches= 2560

runsolver used 0.085986 s user time and 0.321951 s system time

The end



Launcher Data (download as text)




Begin job on node3 on Tue Jan 16 20:54:02 UTC 2007


IDJOB= 269504
IDBENCH= 6757
IDSOLVER= 90
FILE ID= node3/269504-1168980840

PBS_JOBID= 3566032

Free space on /tmp= 66564 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-10/os-taillard-10-100-7.xml
COMMAND LINE= /tmp/evaluation/269504-1168980840/VALCSP /tmp/evaluation/269504-1168980840/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-269504-1168980840 -o ROOT/results/node3/solver-269504-1168980840 -C 1800 -M 900  /tmp/evaluation/269504-1168980840/VALCSP /tmp/evaluation/269504-1168980840/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  508a372afa45a3d958684f762290b9bc

RANDOM SEED= 517602765

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		: 3000.279
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		: 3000.279
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:       1405232 kB
Buffers:         51584 kB
Cached:         333488 kB
SwapCached:        284 kB
Active:         358852 kB
Inactive:       219912 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1405232 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:             308 kB
Writeback:           0 kB
Mapped:         206036 kB
Slab:            56808 kB
Committed_AS:  6765980 kB
PageTables:       2276 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 node3 on Tue Jan 16 20:55:55 UTC 2007