Trace number 269500

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) 115.267 116.239

General information on the benchmark

Nametaillard/os-taillard-10/
os-taillard-10-105-7.xml
MD5SUMcb5c2e7afef3a2e56bda1454eda70801
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 benchmark0.240963
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables100
Number of constraints900
Maximum constraint arity2
Maximum domain size625
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/node19/watcher-269500-1168980834 -o ROOT/results/node19/solver-269500-1168980834 -C 1800 -M 900 /tmp/evaluation/269500-1168980834/VALCSP /tmp/evaluation/269500-1168980834/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: 1.61 1.09 1.00 5/86 3367
/proc/meminfo: memFree=1664936/2055920 swapFree=4171264/4192956
[pid=3366] ppid=3364 vsize=1600 CPUtime=0
/proc/3366/stat : 3366 (VALCSP) R 3364 3366 2927 0 -1 4194304 152 0 0 0 0 0 0 0 20 0 1 0 246478370 1638400 130 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 7922336 0 0 4096 0 0 0 0 17 1 0 0
/proc/3366/statm: 400 130 63 8 0 72 0

[startup+0.104703 s]
/proc/loadavg: 1.61 1.09 1.00 5/86 3367
/proc/meminfo: memFree=1664936/2055920 swapFree=4171264/4192956
[pid=3366] ppid=3364 vsize=4240 CPUtime=0.09
/proc/3366/stat : 3366 (VALCSP) R 3364 3366 2927 0 -1 4194304 809 0 0 0 9 0 0 0 20 0 1 0 246478370 4341760 787 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 1 0 0
/proc/3366/statm: 1060 787 64 8 0 732 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4240

[startup+0.51278 s]
/proc/loadavg: 1.61 1.09 1.00 5/86 3367
/proc/meminfo: memFree=1664936/2055920 swapFree=4171264/4192956
[pid=3366] ppid=3364 vsize=8200 CPUtime=0.49
/proc/3366/stat : 3366 (VALCSP) R 3364 3366 2927 0 -1 4194304 1793 0 0 0 49 0 0 0 24 0 1 0 246478370 8396800 1771 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/3366/statm: 2050 1771 64 8 0 1722 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 8200

[startup+1.33393 s]
/proc/loadavg: 1.61 1.09 1.00 3/86 3367
/proc/meminfo: memFree=1647912/2055920 swapFree=4171264/4192956
[pid=3366] ppid=3364 vsize=13480 CPUtime=1.31
/proc/3366/stat : 3366 (VALCSP) R 3364 3366 2927 0 -1 4194304 3122 0 0 0 130 1 0 0 25 0 1 0 246478370 13803520 3100 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/3366/statm: 3370 3100 64 8 0 3042 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 13480

[startup+2.97324 s]
/proc/loadavg: 1.61 1.09 1.00 3/86 3367
/proc/meminfo: memFree=1632936/2055920 swapFree=4171264/4192956
[pid=3366] ppid=3364 vsize=27736 CPUtime=2.94
/proc/3366/stat : 3366 (VALCSP) R 3364 3366 2927 0 -1 4194304 6664 0 0 0 291 3 0 0 25 0 1 0 246478370 28401664 6642 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/3366/statm: 6934 6642 64 8 0 6606 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 27736

[startup+6.25186 s]
/proc/loadavg: 1.64 1.11 1.01 3/86 3367
/proc/meminfo: memFree=1587880/2055920 swapFree=4171264/4192956
[pid=3366] ppid=3364 vsize=52420 CPUtime=6.18
/proc/3366/stat : 3366 (VALCSP) R 3364 3366 2927 0 -1 4194304 12858 0 0 0 613 5 0 0 25 0 1 0 246478370 53678080 12836 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/3366/statm: 13105 12836 64 8 0 12777 0
Current children cumulated CPU time (s) 6.18
Current children cumulated vsize (KiB) 52420

[startup+12.7131 s]
/proc/loadavg: 1.67 1.12 1.01 3/86 3367
/proc/meminfo: memFree=1503464/2055920 swapFree=4171264/4192956
[pid=3366] ppid=3364 vsize=104824 CPUtime=12.6
/proc/3366/stat : 3366 (VALCSP) R 3364 3366 2927 0 -1 4194304 25937 0 0 0 1248 12 0 0 25 0 1 0 246478370 107339776 25915 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/3366/statm: 26206 25915 64 8 0 25878 0
Current children cumulated CPU time (s) 12.6
Current children cumulated vsize (KiB) 104824

[startup+25.5245 s]
/proc/loadavg: 1.72 1.15 1.02 3/86 3367
/proc/meminfo: memFree=1351208/2055920 swapFree=4171264/4192956
[pid=3366] ppid=3364 vsize=208972 CPUtime=25.31
/proc/3366/stat : 3366 (VALCSP) R 3364 3366 2927 0 -1 4194304 51981 0 0 0 2508 23 0 0 25 0 1 0 246478370 213987328 51959 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/3366/statm: 52243 51959 64 8 0 51915 0
Current children cumulated CPU time (s) 25.31
Current children cumulated vsize (KiB) 208972

[startup+51.1643 s]
/proc/loadavg: 1.83 1.23 1.05 3/86 3367
/proc/meminfo: memFree=1038888/2055920 swapFree=4171264/4192956
[pid=3366] ppid=3364 vsize=408688 CPUtime=50.73
/proc/3366/stat : 3366 (VALCSP) R 3364 3366 2927 0 -1 4194304 101931 0 0 0 5030 43 0 0 25 0 1 0 246478370 418496512 101909 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/3366/statm: 102172 101909 64 8 0 101844 0
Current children cumulated CPU time (s) 50.73
Current children cumulated vsize (KiB) 408688

[startup+102.445 s]
/proc/loadavg: 1.92 1.35 1.10 3/86 3367
/proc/meminfo: memFree=420008/2055920 swapFree=4171264/4192956
[pid=3366] ppid=3364 vsize=812476 CPUtime=101.59
/proc/3366/stat : 3366 (VALCSP) R 3364 3366 2927 0 -1 4194304 202868 0 0 0 10076 83 0 0 25 0 1 0 246478370 831975424 202846 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/3366/statm: 203119 202846 64 8 0 202791 0
Current children cumulated CPU time (s) 101.59
Current children cumulated vsize (KiB) 812476



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+116.084 s]
/proc/loadavg: 1.94 1.38 1.11 3/86 3367
/proc/meminfo: memFree=241512/2055920 swapFree=4171264/4192956
[pid=3366] ppid=3364 vsize=921772 CPUtime=115.12
/proc/3366/stat : 3366 (VALCSP) R 3364 3366 2927 0 -1 4194304 230181 0 0 0 11419 93 0 0 25 0 1 0 246478370 943894528 230159 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528694 0 0 4096 0 0 0 0 17 1 0 0
/proc/3366/statm: 230443 230159 64 8 0 230115 0
Current children cumulated CPU time (s) 115.12
Current children cumulated vsize (KiB) 921772

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 116.239
CPU time (s): 115.267
CPU user time (s): 114.192
CPU system time (s): 1.07584
CPU usage (%): 99.1638
Max. virtual memory (cumulated for all children) (KiB): 921772

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 114.192
system time used= 1.07584
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230181
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= 4623

runsolver used 0.107983 s user time and 0.32395 s system time

The end



Launcher Data (download as text)




Begin job on node19 on Tue Jan 16 20:53:56 UTC 2007


IDJOB= 269500
IDBENCH= 6753
IDSOLVER= 90
FILE ID= node19/269500-1168980834

PBS_JOBID= 3566028

Free space on /tmp= 66564 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-10/os-taillard-10-105-7.xml
COMMAND LINE= /tmp/evaluation/269500-1168980834/VALCSP /tmp/evaluation/269500-1168980834/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node19/watcher-269500-1168980834 -o ROOT/results/node19/solver-269500-1168980834 -C 1800 -M 900  /tmp/evaluation/269500-1168980834/VALCSP /tmp/evaluation/269500-1168980834/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  cb5c2e7afef3a2e56bda1454eda70801

RANDOM SEED= 52725703

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		: 3000.260
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		: 3000.260
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:       1671176 kB
Buffers:         43708 kB
Cached:         158128 kB
SwapCached:       9984 kB
Active:         255140 kB
Inactive:        58576 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1671176 kB
SwapTotal:     4192956 kB
SwapFree:      4171264 kB
Dirty:             836 kB
Writeback:           0 kB
Mapped:         121856 kB
Slab:            55660 kB
Committed_AS:  6631248 kB
PageTables:       2476 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 node19 on Tue Jan 16 20:55:54 UTC 2007