Trace number 269418

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) 168.005 168.004

General information on the benchmark

Nametaillard/os-taillard-15/
os-taillard-15-100-9.xml
MD5SUMbf3ae01f7ee0d46a4b8c500f7d319d1f
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 benchmark0.649901
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables225
Number of constraints3150
Maximum constraint arity2
Maximum domain size935
Number of constraints which are defined in extension0
Number of constraints which are defined in intension3150
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/node16/watcher-269418-1168980624 -o ROOT/results/node16/solver-269418-1168980624 -C 1800 -M 900 /tmp/evaluation/269418-1168980624/VALCSP /tmp/evaluation/269418-1168980624/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: 1.00 1.01 1.15 5/86 19238
/proc/meminfo: memFree=1545000/2055920 swapFree=4191880/4192956
[pid=19237] ppid=19235 vsize=3316 CPUtime=0
/proc/19237/stat : 19237 (VALCSP) R 19235 19237 19105 0 -1 4194304 568 0 0 0 0 0 0 0 18 0 1 0 246457492 3395584 546 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 7640699 0 0 4096 0 0 0 0 17 1 0 0
/proc/19237/statm: 829 552 64 8 0 501 0

[startup+0.103173 s]
/proc/loadavg: 1.00 1.01 1.15 5/86 19238
/proc/meminfo: memFree=1545000/2055920 swapFree=4191880/4192956
[pid=19237] ppid=19235 vsize=9972 CPUtime=0.1
/proc/19237/stat : 19237 (VALCSP) R 19235 19237 19105 0 -1 4194304 2230 0 0 0 9 1 0 0 18 0 1 0 246457492 10211328 2208 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528610 0 0 4096 0 0 0 0 17 1 0 0
/proc/19237/statm: 2493 2208 64 8 0 2165 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 9972

[startup+0.511097 s]
/proc/loadavg: 1.00 1.01 1.15 5/86 19238
/proc/meminfo: memFree=1545000/2055920 swapFree=4191880/4192956
[pid=19237] ppid=19235 vsize=9972 CPUtime=0.5
/proc/19237/stat : 19237 (VALCSP) R 19235 19237 19105 0 -1 4194304 2230 0 0 0 49 1 0 0 22 0 1 0 246457492 10211328 2208 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/19237/statm: 2493 2208 64 8 0 2165 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 9972

[startup+1.33494 s]
/proc/loadavg: 1.00 1.01 1.15 4/86 19238
/proc/meminfo: memFree=1533352/2055920 swapFree=4191880/4192956
[pid=19237] ppid=19235 vsize=16308 CPUtime=1.32
/proc/19237/stat : 19237 (VALCSP) R 19235 19237 19105 0 -1 4194304 3816 0 0 0 131 1 0 0 25 0 1 0 246457492 16699392 3794 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/19237/statm: 4077 3794 64 8 0 3749 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 16308

[startup+2.97864 s]
/proc/loadavg: 1.00 1.01 1.15 3/86 19238
/proc/meminfo: memFree=1526952/2055920 swapFree=4191880/4192956
[pid=19237] ppid=19235 vsize=25416 CPUtime=2.96
/proc/19237/stat : 19237 (VALCSP) R 19235 19237 19105 0 -1 4194304 6077 0 0 0 294 2 0 0 25 0 1 0 246457492 26025984 6055 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/19237/statm: 6354 6055 64 8 0 6026 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 25416

[startup+6.25603 s]
/proc/loadavg: 1.08 1.02 1.15 3/86 19238
/proc/meminfo: memFree=1508720/2055920 swapFree=4191880/4192956
[pid=19237] ppid=19235 vsize=43896 CPUtime=6.24
/proc/19237/stat : 19237 (VALCSP) R 19235 19237 19105 0 -1 4194304 10719 0 0 0 619 5 0 0 25 0 1 0 246457492 44949504 10697 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/19237/statm: 10974 10697 64 8 0 10646 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 43896

[startup+12.7188 s]
/proc/loadavg: 1.15 1.04 1.16 3/86 19238
/proc/meminfo: memFree=1471408/2055920 swapFree=4191880/4192956
[pid=19237] ppid=19235 vsize=77952 CPUtime=12.7
/proc/19237/stat : 19237 (VALCSP) R 19235 19237 19105 0 -1 4194304 19235 0 0 0 1261 9 0 0 25 0 1 0 246457492 79822848 19213 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/19237/statm: 19488 19213 64 8 0 19160 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 77952

[startup+25.5294 s]
/proc/loadavg: 1.34 1.09 1.17 3/86 19238
/proc/meminfo: memFree=1402416/2055920 swapFree=4191880/4192956
[pid=19237] ppid=19235 vsize=146988 CPUtime=25.52
/proc/19237/stat : 19237 (VALCSP) R 19235 19237 19105 0 -1 4194304 36489 0 0 0 2533 19 0 0 25 0 1 0 246457492 150515712 36467 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/19237/statm: 36747 36467 64 8 0 36419 0
Current children cumulated CPU time (s) 25.52
Current children cumulated vsize (KiB) 146988

[startup+51.1657 s]
/proc/loadavg: 1.56 1.16 1.19 3/86 19238
/proc/meminfo: memFree=1259184/2055920 swapFree=4191880/4192956
[pid=19237] ppid=19235 vsize=289944 CPUtime=51.16
/proc/19237/stat : 19237 (VALCSP) R 19235 19237 19105 0 -1 4194304 72202 0 0 0 5077 39 0 0 25 0 1 0 246457492 296902656 72180 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/19237/statm: 72486 72180 64 8 0 72158 0
Current children cumulated CPU time (s) 51.16
Current children cumulated vsize (KiB) 289944

[startup+102.432 s]
/proc/loadavg: 1.81 1.29 1.23 3/86 19238
/proc/meminfo: memFree=984368/2055920 swapFree=4191880/4192956
[pid=19237] ppid=19235 vsize=564240 CPUtime=102.43
/proc/19237/stat : 19237 (VALCSP) R 19235 19237 19105 0 -1 4194304 140784 0 0 0 10167 76 0 0 25 0 1 0 246457492 577781760 140762 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/19237/statm: 141060 140762 64 8 0 140732 0
Current children cumulated CPU time (s) 102.43
Current children cumulated vsize (KiB) 564240

[startup+162.523 s]
/proc/loadavg: 1.93 1.41 1.28 3/86 19238
/proc/meminfo: memFree=655472/2055920 swapFree=4191880/4192956
[pid=19237] ppid=19235 vsize=889092 CPUtime=162.52
/proc/19237/stat : 19237 (VALCSP) R 19235 19237 19105 0 -1 4194304 222000 0 0 0 16133 119 0 0 25 0 1 0 246457492 910430208 221978 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/19237/statm: 222273 221978 64 8 0 221945 0
Current children cumulated CPU time (s) 162.52
Current children cumulated vsize (KiB) 889092



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+167.854 s]
/proc/loadavg: 1.93 1.42 1.28 3/86 19238
/proc/meminfo: memFree=622512/2055920 swapFree=4191880/4192956
[pid=19237] ppid=19235 vsize=921960 CPUtime=167.85
/proc/19237/stat : 19237 (VALCSP) R 19235 19237 19105 0 -1 4194304 230218 0 0 0 16662 123 0 0 25 0 1 0 246457492 944087040 230196 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/19237/statm: 230490 230196 64 8 0 230162 0
Current children cumulated CPU time (s) 167.85
Current children cumulated vsize (KiB) 921960

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 168.004
CPU time (s): 168.005
CPU user time (s): 166.623
CPU system time (s): 1.38279
CPU usage (%): 100.001
Max. virtual memory (cumulated for all children) (KiB): 921960

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 166.623
system time used= 1.38279
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230218
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= 3577

runsolver used 0.12698 s user time and 0.476927 s system time

The end



Launcher Data (download as text)




Begin job on node16 on Tue Jan 16 20:50:25 UTC 2007


IDJOB= 269418
IDBENCH= 6628
IDSOLVER= 90
FILE ID= node16/269418-1168980624

PBS_JOBID= 3566033

Free space on /tmp= 66564 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-15/os-taillard-15-100-9.xml
COMMAND LINE= /tmp/evaluation/269418-1168980624/VALCSP /tmp/evaluation/269418-1168980624/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node16/watcher-269418-1168980624 -o ROOT/results/node16/solver-269418-1168980624 -C 1800 -M 900  /tmp/evaluation/269418-1168980624/VALCSP /tmp/evaluation/269418-1168980624/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  bf3ae01f7ee0d46a4b8c500f7d319d1f

RANDOM SEED= 733583402

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		: 3000.220
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		: 3000.220
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:       1545416 kB
Buffers:         13636 kB
Cached:         173368 kB
SwapCached:        268 kB
Active:         281724 kB
Inactive:       157120 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1545416 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:             596 kB
Writeback:           0 kB
Mapped:         271056 kB
Slab:            55948 kB
Committed_AS:  7002776 kB
PageTables:       2708 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 node16 on Tue Jan 16 20:53:15 UTC 2007