Trace number 269543

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) 27.4238 27.7333

General information on the benchmark

Namehaystacks/
haystacks_54.xml
MD5SUM19223f33b07fb306db25b88716a23e2c
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables2916
Number of constraints77327
Maximum constraint arity2
Maximum domain size54
Number of constraints which are defined in extension0
Number of constraints which are defined in intension77327
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/node15/watcher-269543-1168980972 -o ROOT/results/node15/solver-269543-1168980972 -C 1800 -M 900 /tmp/evaluation/269543-1168980972/VALCSP /tmp/evaluation/269543-1168980972/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


[startup+0.106485 s]
/proc/loadavg: 1.99 1.62 1.41 5/86 8703
/proc/meminfo: memFree=1030272/2055920 swapFree=4173632/4192956
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0
/proc/loadavg: 1.99 1.62 1.41 5/86 8703
/proc/meminfo: memFree=1030272/2055920 swapFree=4173632/4192956
[pid=8702] ppid=8700 vsize=79344 CPUtime=0.09
/proc/8702/stat : 8702 (VALCSP) R 8700 8702 8568 0 -1 4194304 18596 0 0 0 2 7 0 0 20 0 1 0 246492121 81248256 18574 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 7947899 0 0 4096 0 0 0 0 17 1 0 0
/proc/8702/statm: 19836 18574 64 8 0 19508 0

[startup+0.514554 s]
/proc/loadavg: 1.99 1.62 1.41 5/86 8703
/proc/meminfo: memFree=1030272/2055920 swapFree=4173632/4192956
[pid=8702] ppid=8700 vsize=117716 CPUtime=0.5
/proc/8702/stat : 8702 (VALCSP) R 8700 8702 8568 0 -1 4194304 27484 0 0 0 39 11 0 0 24 0 1 0 246492121 120541184 27462 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528776 0 0 4096 0 0 0 0 17 1 0 0
/proc/8702/statm: 29429 27462 65 8 0 29101 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 117716

[startup+1.3397 s]
/proc/loadavg: 1.99 1.63 1.41 3/86 8703
/proc/meminfo: memFree=903296/2055920 swapFree=4173632/4192956
[pid=8702] ppid=8700 vsize=142380 CPUtime=1.32
/proc/8702/stat : 8702 (VALCSP) R 8700 8702 8568 0 -1 4194304 33682 0 0 0 119 13 0 0 25 0 1 0 246492121 145797120 33660 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529359 0 0 4096 0 0 0 0 17 1 0 0
/proc/8702/statm: 35595 33660 65 8 0 35267 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 142380

[startup+2.97697 s]
/proc/loadavg: 1.99 1.63 1.41 3/86 8703
/proc/meminfo: memFree=863424/2055920 swapFree=4173632/4192956
[pid=8702] ppid=8700 vsize=191116 CPUtime=2.94
/proc/8702/stat : 8702 (VALCSP) R 8700 8702 8568 0 -1 4194304 45889 0 0 0 275 19 0 0 25 0 1 0 246492121 195702784 45867 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529315 0 0 4096 0 0 0 0 17 1 0 0
/proc/8702/statm: 47779 45867 65 8 0 47451 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 191116

[startup+6.25954 s]
/proc/loadavg: 1.99 1.63 1.41 3/86 8703
/proc/meminfo: memFree=749568/2055920 swapFree=4173632/4192956
[pid=8702] ppid=8700 vsize=290228 CPUtime=6.19
/proc/8702/stat : 8702 (VALCSP) R 8700 8702 8568 0 -1 4194304 70704 0 0 0 588 31 0 0 25 0 1 0 246492121 297193472 70682 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/8702/statm: 72557 70682 65 8 0 72229 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 290228

[startup+12.7216 s]
/proc/loadavg: 1.99 1.64 1.41 3/86 8703
/proc/meminfo: memFree=511760/2055920 swapFree=4173632/4192956
[pid=8702] ppid=8700 vsize=482336 CPUtime=12.59
/proc/8702/stat : 8702 (VALCSP) R 8700 8702 8568 0 -1 4194304 118867 0 0 0 1204 55 0 0 25 0 1 0 246492121 493912064 118845 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529359 0 0 4096 0 0 0 0 17 1 0 0
/proc/8702/statm: 120584 118845 65 8 0 120256 0
Current children cumulated CPU time (s) 12.59
Current children cumulated vsize (KiB) 482336

[startup+25.5368 s]
/proc/loadavg: 1.99 1.65 1.42 3/86 8703
/proc/meminfo: memFree=89296/2055920 swapFree=4173632/4192956
[pid=8702] ppid=8700 vsize=861868 CPUtime=25.28
/proc/8702/stat : 8702 (VALCSP) R 8700 8702 8568 0 -1 4194304 213933 0 0 0 2431 97 0 0 25 0 1 0 246492121 882552832 213911 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529286 0 0 4096 0 0 0 0 17 1 0 0
/proc/8702/statm: 215467 213911 66 8 0 215139 0
Current children cumulated CPU time (s) 25.28
Current children cumulated vsize (KiB) 861868



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+27.5922 s]
/proc/loadavg: 1.99 1.65 1.42 3/86 8703
/proc/meminfo: memFree=13456/2055920 swapFree=4173628/4192956
[pid=8702] ppid=8700 vsize=923000 CPUtime=27.28
/proc/8702/stat : 8702 (VALCSP) R 8700 8702 8568 0 -1 4194304 229253 0 0 0 2622 106 0 0 25 0 1 0 246492121 945152000 229231 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 7947899 0 0 4096 0 0 0 0 17 0 0 0
/proc/8702/statm: 230750 229231 66 8 0 230422 0
Current children cumulated CPU time (s) 27.28
Current children cumulated vsize (KiB) 923000

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 27.7333
CPU time (s): 27.4238
CPU user time (s): 26.222
CPU system time (s): 1.20182
CPU usage (%): 98.8842
Max. virtual memory (cumulated for all children) (KiB): 923000

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 26.222
system time used= 1.20182
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 229253
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= 607

runsolver used 0.045993 s user time and 0.087986 s system time

The end



Launcher Data (download as text)




Begin job on node15 on Tue Jan 16 20:56:13 UTC 2007


IDJOB= 269543
IDBENCH= 6952
IDSOLVER= 90
FILE ID= node15/269543-1168980972

PBS_JOBID= 3566045

Free space on /tmp= 66555 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/haystacks/haystacks_54.xml
COMMAND LINE= /tmp/evaluation/269543-1168980972/VALCSP /tmp/evaluation/269543-1168980972/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node15/watcher-269543-1168980972 -o ROOT/results/node15/solver-269543-1168980972 -C 1800 -M 900  /tmp/evaluation/269543-1168980972/VALCSP /tmp/evaluation/269543-1168980972/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  19223f33b07fb306db25b88716a23e2c

RANDOM SEED= 854950646

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		: 3000.276
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		: 3000.276
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:       1038304 kB
Buffers:         38376 kB
Cached:         120020 kB
SwapCached:       6028 kB
Active:         826940 kB
Inactive:       133912 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1038304 kB
SwapTotal:     4192956 kB
SwapFree:      4173632 kB
Dirty:            9592 kB
Writeback:           0 kB
Mapped:         812856 kB
Slab:            40064 kB
Committed_AS:  8456100 kB
PageTables:       3840 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= 66555 MiB



End job on node15 on Tue Jan 16 20:56:41 UTC 2007