Trace number 268474

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) 131.806 131.855

General information on the benchmark

Namefapp/fapp36-40/fapp38/
fapp38-2500-8.xml
MD5SUMc63689b420ce6e8c6aef37817cc56cbd
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 benchmark57.7552
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables2500
Number of constraints62132
Maximum constraint arity2
Maximum domain size698
Number of constraints which are defined in extension0
Number of constraints which are defined in intension62132
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/node33/watcher-268474-1168979140 -o ROOT/results/node33/solver-268474-1168979140 -C 1800 -M 900 /tmp/evaluation/268474-1168979140/VALCSP /tmp/evaluation/268474-1168979140/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: 0.99 0.97 0.72 4/65 20002
/proc/meminfo: memFree=1362736/2055920 swapFree=4192224/4192956
[pid=20001] ppid=19999 vsize=2660 CPUtime=0
/proc/20001/stat : 20001 (VALCSP) R 19999 20001 19445 0 -1 4194304 362 0 0 0 0 0 0 0 18 0 1 0 246307870 2723840 341 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 11380347 0 0 4096 0 0 0 0 17 1 0 0
/proc/20001/statm: 665 349 64 8 0 337 0

[startup+0.10708 s]
/proc/loadavg: 0.99 0.97 0.72 4/65 20002
/proc/meminfo: memFree=1362736/2055920 swapFree=4192224/4192956
[pid=20001] ppid=19999 vsize=78584 CPUtime=0.09
/proc/20001/stat : 20001 (VALCSP) R 19999 20001 19445 0 -1 4194304 18826 0 0 0 3 6 0 0 18 0 1 0 246307870 80470016 18805 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 11380347 0 0 4096 0 0 0 0 17 1 0 0
/proc/20001/statm: 19646 18810 64 8 0 19318 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 78584

[startup+0.515163 s]
/proc/loadavg: 0.99 0.97 0.72 4/65 20002
/proc/meminfo: memFree=1362736/2055920 swapFree=4192224/4192956
[pid=20001] ppid=19999 vsize=109348 CPUtime=0.51
/proc/20001/stat : 20001 (VALCSP) R 19999 20001 19445 0 -1 4194304 26190 0 0 0 41 10 0 0 22 0 1 0 246307870 111972352 26168 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/20001/statm: 27337 26168 65 8 0 27009 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 109348

[startup+1.33533 s]
/proc/loadavg: 0.99 0.97 0.72 2/65 20002
/proc/meminfo: memFree=1254320/2055920 swapFree=4192224/4192956
[pid=20001] ppid=19999 vsize=113176 CPUtime=1.32
/proc/20001/stat : 20001 (VALCSP) R 19999 20001 19445 0 -1 4194304 27146 0 0 0 122 10 0 0 25 0 1 0 246307870 115892224 27124 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/20001/statm: 28294 27124 65 8 0 27966 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 113176

[startup+2.97167 s]
/proc/loadavg: 0.99 0.97 0.72 2/65 20002
/proc/meminfo: memFree=1247984/2055920 swapFree=4192224/4192956
[pid=20001] ppid=19999 vsize=123340 CPUtime=2.96
/proc/20001/stat : 20001 (VALCSP) R 19999 20001 19445 0 -1 4194304 29676 0 0 0 285 11 0 0 25 0 1 0 246307870 126300160 29654 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528680 0 0 4096 0 0 0 0 17 1 0 0
/proc/20001/statm: 30835 29654 65 8 0 30507 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 123340

[startup+6.24935 s]
/proc/loadavg: 0.99 0.97 0.72 2/65 20002
/proc/meminfo: memFree=1225584/2055920 swapFree=4192224/4192956
[pid=20001] ppid=19999 vsize=145516 CPUtime=6.24
/proc/20001/stat : 20001 (VALCSP) R 19999 20001 19445 0 -1 4194304 35228 0 0 0 610 14 0 0 25 0 1 0 246307870 149008384 35206 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529346 0 0 4096 0 0 0 0 17 1 0 0
/proc/20001/statm: 36379 35206 65 8 0 36051 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 145516

[startup+12.7027 s]
/proc/loadavg: 0.99 0.97 0.72 2/65 20002
/proc/meminfo: memFree=1184320/2055920 swapFree=4192224/4192956
[pid=20001] ppid=19999 vsize=184984 CPUtime=12.69
/proc/20001/stat : 20001 (VALCSP) R 19999 20001 19445 0 -1 4194304 45091 0 0 0 1251 18 0 0 25 0 1 0 246307870 189423616 45069 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/20001/statm: 46246 45069 65 8 0 45918 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 184984

[startup+25.5043 s]
/proc/loadavg: 0.99 0.97 0.73 2/65 20002
/proc/meminfo: memFree=1108096/2055920 swapFree=4192224/4192956
[pid=20001] ppid=19999 vsize=265504 CPUtime=25.48
/proc/20001/stat : 20001 (VALCSP) R 19999 20001 19445 0 -1 4194304 65237 0 0 0 2523 25 0 0 25 0 1 0 246307870 271876096 65215 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528658 0 0 4096 0 0 0 0 17 1 0 0
/proc/20001/statm: 66376 65215 65 8 0 66048 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 265504

[startup+51.1086 s]
/proc/loadavg: 0.99 0.97 0.73 2/65 20002
/proc/meminfo: memFree=950720/2055920 swapFree=4192224/4192956
[pid=20001] ppid=19999 vsize=418360 CPUtime=51.08
/proc/20001/stat : 20001 (VALCSP) R 19999 20001 19445 0 -1 4194304 103434 0 0 0 5066 42 0 0 25 0 1 0 246307870 428400640 103412 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/20001/statm: 104590 103412 65 8 0 104262 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 418360

[startup+102.316 s]
/proc/loadavg: 0.99 0.97 0.74 2/65 20002
/proc/meminfo: memFree=641088/2055920 swapFree=4192224/4192956
[pid=20001] ppid=19999 vsize=731200 CPUtime=102.26
/proc/20001/stat : 20001 (VALCSP) R 19999 20001 19445 0 -1 4194304 181639 0 0 0 10156 70 0 0 25 0 1 0 246307870 748748800 181617 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/20001/statm: 182800 181617 65 8 0 182472 0
Current children cumulated CPU time (s) 102.26
Current children cumulated vsize (KiB) 731200



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+131.709 s]
/proc/loadavg: 0.99 0.97 0.75 2/65 20002
/proc/meminfo: memFree=443648/2055920 swapFree=4192224/4192956
[pid=20001] ppid=19999 vsize=922468 CPUtime=131.66
/proc/20001/stat : 20001 (VALCSP) R 19999 20001 19445 0 -1 4194304 229461 0 0 0 13077 89 0 0 25 0 1 0 246307870 944607232 229439 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/20001/statm: 230617 229439 65 8 0 230289 0
Current children cumulated CPU time (s) 131.66
Current children cumulated vsize (KiB) 922468

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 131.855
CPU time (s): 131.806
CPU user time (s): 130.775
CPU system time (s): 1.03084
CPU usage (%): 99.9632
Max. virtual memory (cumulated for all children) (KiB): 922468

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 130.775
system time used= 1.03084
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 229461
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= 341

runsolver used 0.094985 s user time and 0.268959 s system time

The end



Launcher Data (download as text)




Begin job on node33 on Tue Jan 16 20:25:40 UTC 2007


IDJOB= 268474
IDBENCH= 4177
IDSOLVER= 90
FILE ID= node33/268474-1168979140

PBS_JOBID= 3566176

Free space on /tmp= 66556 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp36-40/fapp38/fapp38-2500-8.xml
COMMAND LINE= /tmp/evaluation/268474-1168979140/VALCSP /tmp/evaluation/268474-1168979140/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node33/watcher-268474-1168979140 -o ROOT/results/node33/solver-268474-1168979140 -C 1800 -M 900  /tmp/evaluation/268474-1168979140/VALCSP /tmp/evaluation/268474-1168979140/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  c63689b420ce6e8c6aef37817cc56cbd

RANDOM SEED= 803051322

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		: 3000.281
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		: 3000.281
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:       1363216 kB
Buffers:         49688 kB
Cached:         551844 kB
SwapCached:        268 kB
Active:         112452 kB
Inactive:       504076 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1363216 kB
SwapTotal:     4192956 kB
SwapFree:      4192224 kB
Dirty:            8624 kB
Writeback:           0 kB
Mapped:          24636 kB
Slab:            62184 kB
Committed_AS:  4215456 kB
PageTables:       1408 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= 66556 MiB



End job on node33 on Tue Jan 16 20:27:52 UTC 2007