Trace number 269700

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) 163.737 165.025

General information on the benchmark

NamelargeQueens/
queens-800.xml
MD5SUMae3fb08e380de75bb270c4046c2f54ea
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 benchmark398.828
SatisfiableYES
(Un)Satisfiability was proved
Number of variables800
Number of constraints319600
Maximum constraint arity2
Maximum domain size800
Number of constraints which are defined in extension0
Number of constraints which are defined in intension319600
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/node47/watcher-269700-1168982679 -o ROOT/results/node47/solver-269700-1168982679 -C 1800 -M 900 /tmp/evaluation/269700-1168982679/VALCSP /tmp/evaluation/269700-1168982679/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: 1.99 1.97 1.84 5/73 30384
/proc/meminfo: memFree=1305944/2055920 swapFree=4184008/4192956
[pid=30383] ppid=30381 vsize=4372 CPUtime=0
/proc/30383/stat : 30383 (VALCSP) R 30381 30383 29980 0 -1 4194304 831 0 0 0 0 0 0 0 20 0 1 0 246667460 4476928 809 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 10954363 0 0 4096 0 0 0 0 17 1 0 0
/proc/30383/statm: 1093 809 64 8 0 765 0

[startup+0.108692 s]
/proc/loadavg: 1.99 1.97 1.84 5/73 30384
/proc/meminfo: memFree=1305944/2055920 swapFree=4184008/4192956
[pid=30383] ppid=30381 vsize=31664 CPUtime=0.09
/proc/30383/stat : 30383 (VALCSP) R 30381 30383 29980 0 -1 4194304 5798 0 0 0 7 2 0 0 20 0 1 0 246667460 32423936 5776 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528639 0 0 4096 0 0 0 0 17 1 0 0
/proc/30383/statm: 7916 5776 65 8 0 7588 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 31664

[startup+0.516734 s]
/proc/loadavg: 1.99 1.97 1.84 5/73 30384
/proc/meminfo: memFree=1305944/2055920 swapFree=4184008/4192956
[pid=30383] ppid=30381 vsize=33380 CPUtime=0.5
/proc/30383/stat : 30383 (VALCSP) R 30381 30383 29980 0 -1 4194304 6225 0 0 0 47 3 0 0 24 0 1 0 246667460 34181120 6203 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 10954363 0 0 4096 0 0 0 0 17 1 0 0
/proc/30383/statm: 8345 6203 65 8 0 8017 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 33380

[startup+1.33781 s]
/proc/loadavg: 1.99 1.97 1.84 3/73 30384
/proc/meminfo: memFree=1279448/2055920 swapFree=4184008/4192956
[pid=30383] ppid=30381 vsize=36680 CPUtime=1.31
/proc/30383/stat : 30383 (VALCSP) R 30381 30383 29980 0 -1 4194304 7053 0 0 0 127 4 0 0 25 0 1 0 246667460 37560320 7031 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/30383/statm: 9170 7031 65 8 0 8842 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 36680

[startup+2.97499 s]
/proc/loadavg: 1.99 1.97 1.84 3/73 30384
/proc/meminfo: memFree=1274456/2055920 swapFree=4184008/4192956
[pid=30383] ppid=30381 vsize=46712 CPUtime=2.93
/proc/30383/stat : 30383 (VALCSP) R 30381 30383 29980 0 -1 4194304 9563 0 0 0 288 5 0 0 25 0 1 0 246667460 47833088 9541 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/30383/statm: 11678 9541 65 8 0 11350 0
Current children cumulated CPU time (s) 2.93
Current children cumulated vsize (KiB) 46712

[startup+6.25434 s]
/proc/loadavg: 1.99 1.97 1.84 3/73 30384
/proc/meminfo: memFree=1256856/2055920 swapFree=4184008/4192956
[pid=30383] ppid=30381 vsize=64268 CPUtime=6.18
/proc/30383/stat : 30383 (VALCSP) R 30381 30383 29980 0 -1 4194304 13956 0 0 0 612 6 0 0 25 0 1 0 246667460 65810432 13934 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/30383/statm: 16067 13934 65 8 0 15739 0
Current children cumulated CPU time (s) 6.18
Current children cumulated vsize (KiB) 64268

[startup+12.717 s]
/proc/loadavg: 1.99 1.97 1.84 3/73 30384
/proc/meminfo: memFree=1219224/2055920 swapFree=4184008/4192956
[pid=30383] ppid=30381 vsize=99512 CPUtime=12.6
/proc/30383/stat : 30383 (VALCSP) R 30381 30383 29980 0 -1 4194304 22741 0 0 0 1249 11 0 0 25 0 1 0 246667460 101900288 22719 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529332 0 0 4096 0 0 0 0 17 1 0 0
/proc/30383/statm: 24878 22719 65 8 0 24550 0
Current children cumulated CPU time (s) 12.6
Current children cumulated vsize (KiB) 99512

[startup+25.5354 s]
/proc/loadavg: 1.99 1.97 1.84 3/73 30384
/proc/meminfo: memFree=1151576/2055920 swapFree=4184008/4192956
[pid=30383] ppid=30381 vsize=167228 CPUtime=25.32
/proc/30383/stat : 30383 (VALCSP) R 30381 30383 29980 0 -1 4194304 39684 0 0 0 2514 18 0 0 25 0 1 0 246667460 171241472 39662 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/30383/statm: 41807 39662 65 8 0 41479 0
Current children cumulated CPU time (s) 25.32
Current children cumulated vsize (KiB) 167228

[startup+51.1741 s]
/proc/loadavg: 1.99 1.97 1.84 3/73 30384
/proc/meminfo: memFree=1010840/2055920 swapFree=4184008/4192956
[pid=30383] ppid=30381 vsize=305300 CPUtime=50.74
/proc/30383/stat : 30383 (VALCSP) R 30381 30383 29980 0 -1 4194304 74198 0 0 0 5042 32 0 0 25 0 1 0 246667460 312627200 74176 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/30383/statm: 76325 74176 65 8 0 75997 0
Current children cumulated CPU time (s) 50.74
Current children cumulated vsize (KiB) 305300

[startup+102.436 s]
/proc/loadavg: 1.99 1.97 1.85 3/73 30384
/proc/meminfo: memFree=736664/2055920 swapFree=4184008/4192956
[pid=30383] ppid=30381 vsize=583952 CPUtime=101.61
/proc/30383/stat : 30383 (VALCSP) R 30381 30383 29980 0 -1 4194304 143855 0 0 0 10100 61 0 0 25 0 1 0 246667460 597966848 143833 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 1 0 0
/proc/30383/statm: 145988 143833 65 8 0 145660 0
Current children cumulated CPU time (s) 101.61
Current children cumulated vsize (KiB) 583952

[startup+162.524 s]
/proc/loadavg: 1.99 1.97 1.85 3/73 30384
/proc/meminfo: memFree=407064/2055920 swapFree=4184008/4192956
[pid=30383] ppid=30381 vsize=910256 CPUtime=161.25
/proc/30383/stat : 30383 (VALCSP) R 30381 30383 29980 0 -1 4194304 225435 0 0 0 16032 93 0 0 25 0 1 0 246667460 932102144 225413 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528582 0 0 4096 0 0 0 0 17 1 0 0
/proc/30383/statm: 227564 225413 65 8 0 227236 0
Current children cumulated CPU time (s) 161.25
Current children cumulated vsize (KiB) 910256



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+164.88 s]
/proc/loadavg: 1.99 1.97 1.85 3/73 30384
/proc/meminfo: memFree=391960/2055920 swapFree=4184008/4192956
[pid=30383] ppid=30381 vsize=922796 CPUtime=163.58
/proc/30383/stat : 30383 (VALCSP) R 30381 30383 29980 0 -1 4194304 228573 0 0 0 16264 94 0 0 25 0 1 0 246667460 944943104 228551 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/30383/statm: 230699 228551 65 8 0 230371 0
Current children cumulated CPU time (s) 163.58
Current children cumulated vsize (KiB) 922796

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 165.025
CPU time (s): 163.737
CPU user time (s): 162.649
CPU system time (s): 1.08783
CPU usage (%): 99.2195
Max. virtual memory (cumulated for all children) (KiB): 922796

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 162.649
system time used= 1.08783
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 228573
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= 3536

runsolver used 0.140978 s user time and 0.475927 s system time

The end



Launcher Data (download as text)




Begin job on node47 on Tue Jan 16 21:24:42 UTC 2007


IDJOB= 269700
IDBENCH= 10308
IDSOLVER= 90
FILE ID= node47/269700-1168982679

PBS_JOBID= 3566354

Free space on /tmp= 66522 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/largeQueens/queens-800.xml
COMMAND LINE= /tmp/evaluation/269700-1168982679/VALCSP /tmp/evaluation/269700-1168982679/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node47/watcher-269700-1168982679 -o ROOT/results/node47/solver-269700-1168982679 -C 1800 -M 900  /tmp/evaluation/269700-1168982679/VALCSP /tmp/evaluation/269700-1168982679/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  ae3fb08e380de75bb270c4046c2f54ea

RANDOM SEED= 718501546

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		: 3000.240
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		: 3000.240
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:       1306360 kB
Buffers:         50036 kB
Cached:         575572 kB
SwapCached:       3052 kB
Active:         162260 kB
Inactive:       503516 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1306360 kB
SwapTotal:     4192956 kB
SwapFree:      4184008 kB
Dirty:           42176 kB
Writeback:           0 kB
Mapped:          46880 kB
Slab:            69156 kB
Committed_AS:  4745636 kB
PageTables:       1836 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= 66522 MiB



End job on node47 on Tue Jan 16 21:27:33 UTC 2007