Trace number 269385

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) 224.652 225.005

General information on the benchmark

Nametaillard/os-taillard-20/
os-taillard-20-100-1.xml
MD5SUM5a4c32da7b2151a1595ab2d1cc4dfcd9
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 benchmark1.08383
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables400
Number of constraints7600
Maximum constraint arity2
Maximum domain size1332
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/node40/watcher-269385-1168980583 -o ROOT/results/node40/solver-269385-1168980583 -C 1800 -M 900 /tmp/evaluation/269385-1168980583/VALCSP /tmp/evaluation/269385-1168980583/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: 0.02 0.10 0.35 4/68 522
/proc/meminfo: memFree=1353976/2055920 swapFree=4191892/4192956
[pid=521] ppid=519 vsize=2920 CPUtime=0
/proc/521/stat : 521 (VALCSP) R 519 521 32728 0 -1 4194304 460 0 0 0 0 0 0 0 18 0 1 0 246459071 2990080 439 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 7345733 0 0 4096 0 0 0 0 17 1 0 0
/proc/521/statm: 730 443 63 8 0 402 0

[startup+0.103373 s]
/proc/loadavg: 0.02 0.10 0.35 4/68 522
/proc/meminfo: memFree=1353976/2055920 swapFree=4191892/4192956
[pid=521] ppid=519 vsize=22060 CPUtime=0.09
/proc/521/stat : 521 (VALCSP) R 519 521 32728 0 -1 4194304 5211 0 0 0 7 2 0 0 18 0 1 0 246459071 22589440 5189 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/521/statm: 5515 5189 65 8 0 5187 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 22060

[startup+0.511414 s]
/proc/loadavg: 0.02 0.10 0.35 4/68 522
/proc/meminfo: memFree=1353976/2055920 swapFree=4191892/4192956
[pid=521] ppid=519 vsize=22060 CPUtime=0.5
/proc/521/stat : 521 (VALCSP) R 519 521 32728 0 -1 4194304 5211 0 0 0 48 2 0 0 21 0 1 0 246459071 22589440 5189 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/521/statm: 5515 5189 65 8 0 5187 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 22060

[startup+1.33152 s]
/proc/loadavg: 0.02 0.10 0.35 3/73 527
/proc/meminfo: memFree=1310544/2055920 swapFree=4191892/4192956
[pid=521] ppid=519 vsize=22060 CPUtime=1.32
/proc/521/stat : 521 (VALCSP) R 519 521 32728 0 -1 4194304 5211 0 0 0 130 2 0 0 25 0 1 0 246459071 22589440 5189 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/521/statm: 5515 5189 65 8 0 5187 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 22060

[startup+2.96773 s]
/proc/loadavg: 0.02 0.10 0.35 3/73 527
/proc/meminfo: memFree=1299600/2055920 swapFree=4191892/4192956
[pid=521] ppid=519 vsize=28156 CPUtime=2.95
/proc/521/stat : 521 (VALCSP) R 519 521 32728 0 -1 4194304 6747 0 0 0 293 2 0 0 25 0 1 0 246459071 28831744 6725 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/521/statm: 7039 6725 65 8 0 6711 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 28156

[startup+6.24716 s]
/proc/loadavg: 0.17 0.13 0.36 3/73 527
/proc/meminfo: memFree=1272976/2055920 swapFree=4191892/4192956
[pid=521] ppid=519 vsize=47264 CPUtime=6.24
/proc/521/stat : 521 (VALCSP) R 519 521 32728 0 -1 4194304 11529 0 0 0 619 5 0 0 25 0 1 0 246459071 48398336 11507 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/521/statm: 11816 11507 65 8 0 11488 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 47264

[startup+12.707 s]
/proc/loadavg: 0.32 0.16 0.37 3/73 527
/proc/meminfo: memFree=1215056/2055920 swapFree=4191892/4192956
[pid=521] ppid=519 vsize=72668 CPUtime=12.7
/proc/521/stat : 521 (VALCSP) R 519 521 32728 0 -1 4194304 17875 0 0 0 1263 7 0 0 25 0 1 0 246459071 74412032 17853 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/521/statm: 18167 17853 65 8 0 17839 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 72668

[startup+25.5187 s]
/proc/loadavg: 0.69 0.25 0.39 3/73 527
/proc/meminfo: memFree=1102672/2055920 swapFree=4191892/4192956
[pid=521] ppid=519 vsize=123160 CPUtime=25.5
/proc/521/stat : 521 (VALCSP) R 519 521 32728 0 -1 4194304 30507 0 0 0 2538 12 0 0 25 0 1 0 246459071 126115840 30485 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/521/statm: 30790 30485 65 8 0 30462 0
Current children cumulated CPU time (s) 25.5
Current children cumulated vsize (KiB) 123160

[startup+51.141 s]
/proc/loadavg: 1.14 0.39 0.43 3/73 527
/proc/meminfo: memFree=872528/2055920 swapFree=4191892/4192956
[pid=521] ppid=519 vsize=224736 CPUtime=51.12
/proc/521/stat : 521 (VALCSP) R 519 521 32728 0 -1 4194304 55883 0 0 0 5090 22 0 0 25 0 1 0 246459071 230129664 55861 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/521/statm: 56184 55861 65 8 0 55856 0
Current children cumulated CPU time (s) 51.12
Current children cumulated vsize (KiB) 224736

[startup+102.38 s]
/proc/loadavg: 1.62 0.64 0.51 3/73 527
/proc/meminfo: memFree=420752/2055920 swapFree=4191892/4192956
[pid=521] ppid=519 vsize=430588 CPUtime=102.34
/proc/521/stat : 521 (VALCSP) R 519 521 32728 0 -1 4194304 107340 0 0 0 10192 42 0 0 25 0 1 0 246459071 440922112 107318 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528723 0 0 4096 0 0 0 0 17 1 0 0
/proc/521/statm: 107647 107318 65 8 0 107319 0
Current children cumulated CPU time (s) 102.34
Current children cumulated vsize (KiB) 430588

[startup+162.443 s]
/proc/loadavg: 1.86 0.88 0.60 3/73 527
/proc/meminfo: memFree=15376/2055920 swapFree=4191892/4192956
[pid=521] ppid=519 vsize=670464 CPUtime=162.36
/proc/521/stat : 521 (VALCSP) R 519 521 32728 0 -1 4194304 167338 0 0 0 16169 67 0 0 25 0 1 0 246459071 686555136 167316 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/521/statm: 167616 167316 65 8 0 167288 0
Current children cumulated CPU time (s) 162.36
Current children cumulated vsize (KiB) 670464

[startup+222.497 s]
/proc/loadavg: 1.62 1.00 0.66 2/68 613
/proc/meminfo: memFree=791736/2055920 swapFree=4191892/4192956
[pid=521] ppid=519 vsize=911268 CPUtime=222.14
/proc/521/stat : 521 (VALCSP) R 519 521 32728 0 -1 4194304 227536 0 0 0 22122 92 0 0 25 0 1 0 246459071 933138432 227514 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/521/statm: 227817 227514 65 8 0 227489 0
Current children cumulated CPU time (s) 222.14
Current children cumulated vsize (KiB) 911268



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+224.851 s]
/proc/loadavg: 1.57 1.00 0.66 2/65 618
/proc/meminfo: memFree=783704/2055920 swapFree=4191892/4192956
[pid=521] ppid=519 vsize=924512 CPUtime=224.49
/proc/521/stat : 521 (VALCSP) R 519 521 32728 0 -1 4194304 230847 0 0 0 22356 93 0 0 25 0 1 0 246459071 946700288 230825 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/521/statm: 231128 230825 65 8 0 230800 0
Current children cumulated CPU time (s) 224.49
Current children cumulated vsize (KiB) 924512

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 225.005
CPU time (s): 224.652
CPU user time (s): 223.567
CPU system time (s): 1.08483
CPU usage (%): 99.8431
Max. virtual memory (cumulated for all children) (KiB): 924512

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 223.567
system time used= 1.08483
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230847
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= 853

runsolver used 0.228965 s user time and 0.577912 s system time

The end



Launcher Data (download as text)




Begin job on node40 on Tue Jan 16 20:49:52 UTC 2007


IDJOB= 269385
IDBENCH= 6580
IDSOLVER= 90
FILE ID= node40/269385-1168980583

PBS_JOBID= 3566365

Free space on /tmp= 66564 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-20/os-taillard-20-100-1.xml
COMMAND LINE= /tmp/evaluation/269385-1168980583/VALCSP /tmp/evaluation/269385-1168980583/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node40/watcher-269385-1168980583 -o ROOT/results/node40/solver-269385-1168980583 -C 1800 -M 900  /tmp/evaluation/269385-1168980583/VALCSP /tmp/evaluation/269385-1168980583/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  5a4c32da7b2151a1595ab2d1cc4dfcd9

RANDOM SEED= 599128986

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		: 3000.239
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		: 3000.239
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:       1356704 kB
Buffers:         52904 kB
Cached:         546724 kB
SwapCached:        268 kB
Active:          78048 kB
Inactive:       541124 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1356704 kB
SwapTotal:     4192956 kB
SwapFree:      4191892 kB
Dirty:            1188 kB
Writeback:           0 kB
Mapped:          28548 kB
Slab:            65816 kB
Committed_AS:  4804008 kB
PageTables:       1620 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 node40 on Tue Jan 16 20:53:44 UTC 2007