Trace number 2087521

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
pcs 0.3.2SAT 20.5379 20.6502

DiagnosticValue
ASSIGNMENTS41

General information on the benchmark

Namecsp/queens/
normalized-queens-80.xml
MD5SUMc42d8243620143429735bcf3368436b8
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 benchmark1.26681
Satisfiable
(Un)Satisfiability was proved
Number of variables80
Number of constraints3160
Maximum constraint arity2
Maximum domain size80
Number of constraints which are defined in extension0
Number of constraints which are defined in intension3160
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c has big domains
0.00/0.01	c big-domain mode
0.17/0.20	c Seed is 1752474396
0.17/0.20	c Constructing HOME/instance-2087521-1247727754.xml 
0.17/0.23	c deduced all_different(V1,V2,V3,V4,V5,V6,V7,V8,V9,V10,V11,V12,V13,V14,V15,V16,V17,V18,V19,V20,V21,V22,V23,V24,V25,V26,V27,V28,V29,V30,V31,V32,V33,V34,V35,V36,V37,V38,V39,V40,V41,V42,V43,V44,V45,V46,V47,V48,V49,V50,V51,V52,V53,V54,V55,V56,V57,V58,V59,V60,V61,V62,V63,V64,V65,V66,V67,V68,V69,V70,V71,V72,V73,V74,V75,V76,V77,V78,V79,V0)
0.17/0.23	c  with 12641 constraints
0.17/0.23	c Solving 41 backtracks 2 restarts
20.47/20.63	s SATISFIABLE
20.47/20.63	c V0=50, V1=18, V2=40, V3=32, V4=45, V5=17, V6=19, V7=16, V8=65, V9=36, V10=38, V11=44, V12=66, V13=57, V14=4, V15=62, V16=51, V17=47, V18=6, V19=39, V20=42, V21=35, V22=37, V23=46, V24=48, V25=29, V26=5, V27=76, V28=10, V29=80, V30=64, V31=77, V32=1, V33=3, V34=7, V35=2, V36=75, V37=79, V38=9, V39=71, V40=25, V41=22, V42=78, V43=23, V44=60, V45=55, V46=53, V47=24, V48=74, V49=49, V50=33, V51=54, V52=73, V53=61, V54=52, V55=21, V56=28, V57=31, V58=34, V59=20, V60=14, V61=72, V62=68, V63=27, V64=11, V65=67, V66=58, V67=26, V68=59, V69=70, V70=12, V71=15, V72=13, V73=8, V74=69, V75=43, V76=41, V77=30, V78=56, V79=63, 
20.47/20.63	v 50 18 40 32 45 17 19 16 65 36 38 44 66 57 4 62 51 47 6 39 42 35 37 46 48 29 5 76 10 80 64 77 1 3 7 2 75 79 9 71 25 22 78 23 60 55 53 24 74 49 33 54 73 61 52 21 28 31 34 20 14 72 68 27 11 67 58 26 59 70 12 15 13 8 69 43 41 30 56 63 
20.47/20.63	d ASSIGNMENTS 41

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2087521-1247727754/watcher-2087521-1247727754 -o /tmp/evaluation-result-2087521-1247727754/solver-2087521-1247727754 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1752474396 HOME/instance-2087521-1247727754.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 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


[startup+0 s]
/proc/loadavg: 2.23 2.06 2.02 4/81 18551
/proc/meminfo: memFree=1435784/2055920 swapFree=4192812/4192956
[pid=18551] ppid=18549 vsize=5356 CPUtime=0
/proc/18551/stat : 18551 (pcssolve) R 18549 18551 17638 0 -1 4194304 273 0 0 0 0 0 0 0 22 0 1 0 59841844 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 238487661215 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/18551/statm: 1339 241 200 169 0 50 0
[pid=18552] ppid=18551 vsize=5356 CPUtime=0
/proc/18552/stat : 18552 (pcssolve) R 18551 18551 17638 0 -1 4194368 0 0 0 0 0 0 0 0 22 0 1 0 59841845 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 238487661215 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/18552/statm: 1339 241 200 169 0 50 0

[startup+0.143125 s]
/proc/loadavg: 2.23 2.06 2.02 4/81 18551
/proc/meminfo: memFree=1435784/2055920 swapFree=4192812/4192956
[pid=18551] ppid=18549 vsize=6412 CPUtime=0.12
/proc/18551/stat : 18551 (pcs.big) R 18549 18551 17638 0 -1 4194304 1276 656 0 0 12 0 0 0 18 0 1 0 59841844 6565888 874 996147200 134512640 135215973 4294956304 18446744073709551615 2930299 0 0 4096 0 0 0 0 17 1 0 0
/proc/18551/statm: 1603 875 385 171 0 528 0
Current children cumulated CPU time (s) 0.12
Current children cumulated vsize (KiB) 6412

[startup+0.201133 s]
/proc/loadavg: 2.23 2.06 2.02 4/81 18551
/proc/meminfo: memFree=1435784/2055920 swapFree=4192812/4192956
[pid=18551] ppid=18549 vsize=7736 CPUtime=0.17
/proc/18551/stat : 18551 (pcs.big) R 18549 18551 17638 0 -1 4194304 1655 656 0 0 17 0 0 0 18 0 1 0 59841844 7921664 1096 996147200 134512640 135215973 4294956304 18446744073709551615 2930299 0 0 4096 0 0 0 0 17 1 0 0
/proc/18551/statm: 1934 1096 385 171 0 859 0
Current children cumulated CPU time (s) 0.17
Current children cumulated vsize (KiB) 7736

[startup+0.301155 s]
/proc/loadavg: 2.23 2.06 2.02 4/81 18551
/proc/meminfo: memFree=1435784/2055920 swapFree=4192812/4192956
[pid=18551] ppid=18549 vsize=9712 CPUtime=0.28
/proc/18551/stat : 18551 (pcs.big) R 18549 18551 17638 0 -1 4194304 2481 656 0 0 27 1 0 0 19 0 1 0 59841844 9945088 1648 996147200 134512640 135215973 4294956304 18446744073709551615 134908087 0 0 4096 0 0 0 0 17 1 0 0
/proc/18551/statm: 2428 1649 403 171 0 1353 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 9712

[startup+0.70123 s]
/proc/loadavg: 2.23 2.06 2.02 4/81 18551
/proc/meminfo: memFree=1435784/2055920 swapFree=4192812/4192956
[pid=18551] ppid=18549 vsize=15640 CPUtime=0.67
/proc/18551/stat : 18551 (pcs.big) R 18549 18551 17638 0 -1 4194304 4436 656 0 0 66 1 0 0 23 0 1 0 59841844 16015360 2977 996147200 134512640 135215973 4294956304 18446744073709551615 134600721 0 0 4096 0 0 0 0 17 1 0 0
/proc/18551/statm: 3910 2978 407 171 0 2835 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 15640

[startup+1.50138 s]
/proc/loadavg: 2.23 2.06 2.02 3/82 18556
/proc/meminfo: memFree=1420608/2055920 swapFree=4192812/4192956
[pid=18551] ppid=18549 vsize=25568 CPUtime=1.46
/proc/18551/stat : 18551 (pcs.big) R 18549 18551 17638 0 -1 4194304 7304 656 0 0 143 3 0 0 25 0 1 0 59841844 26181632 5012 996147200 134512640 135215973 4294956304 18446744073709551615 4158960601 0 0 4096 0 0 0 0 17 1 0 0
/proc/18551/statm: 6392 5012 407 171 0 5317 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 25568

[startup+3.1027 s]
/proc/loadavg: 2.23 2.06 2.02 3/82 18556
/proc/meminfo: memFree=1414464/2055920 swapFree=4192812/4192956
[pid=18551] ppid=18549 vsize=55052 CPUtime=3.06
/proc/18551/stat : 18551 (pcs.big) R 18549 18551 17638 0 -1 4194304 15340 656 0 0 299 7 0 0 25 0 1 0 59841844 56373248 11383 996147200 134512640 135215973 4294956304 18446744073709551615 135096460 0 0 4096 0 0 0 0 17 1 0 0
/proc/18551/statm: 13763 11383 407 171 0 12688 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 55052

[startup+6.30132 s]
/proc/loadavg: 2.21 2.06 2.02 3/82 18556
/proc/meminfo: memFree=1384832/2055920 swapFree=4192812/4192956
[pid=18551] ppid=18549 vsize=60852 CPUtime=6.24
/proc/18551/stat : 18551 (pcs.big) R 18549 18551 17638 0 -1 4194304 18341 656 0 0 616 8 0 0 25 0 1 0 59841844 62312448 14384 996147200 134512640 135215973 4294956304 18446744073709551615 134982963 0 0 4096 0 0 0 0 17 1 0 0
/proc/18551/statm: 15213 14384 409 171 0 14138 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 60852

[startup+12.7016 s]
/proc/loadavg: 2.20 2.06 2.02 3/82 18556
/proc/meminfo: memFree=1379392/2055920 swapFree=4192812/4192956
[pid=18551] ppid=18549 vsize=60984 CPUtime=12.61
/proc/18551/stat : 18551 (pcs.big) R 18549 18551 17638 0 -1 4194304 18379 656 0 0 1253 8 0 0 25 0 1 0 59841844 62447616 14422 996147200 134512640 135215973 4294956304 18446744073709551615 134532684 0 0 4096 0 0 0 0 17 1 0 0
/proc/18551/statm: 15246 14422 409 171 0 14171 0
Current children cumulated CPU time (s) 12.61
Current children cumulated vsize (KiB) 60984

Solver just ended. Dumping a history of the last processes samples

[startup+12.8026 s]
/proc/loadavg: 2.20 2.06 2.02 3/82 18556
/proc/meminfo: memFree=1379392/2055920 swapFree=4192812/4192956
[pid=18551] ppid=18549 vsize=60984 CPUtime=12.71
/proc/18551/stat : 18551 (pcs.big) R 18549 18551 17638 0 -1 4194304 18379 656 0 0 1263 8 0 0 25 0 1 0 59841844 62447616 14422 996147200 134512640 135215973 4294956304 18446744073709551615 134597311 0 0 4096 0 0 0 0 17 1 0 0
/proc/18551/statm: 15246 14422 409 171 0 14171 0
Current children cumulated CPU time (s) 12.71
Current children cumulated vsize (KiB) 60984

[startup+16.0012 s]
/proc/loadavg: 2.18 2.06 2.02 3/82 18556
/proc/meminfo: memFree=1379392/2055920 swapFree=4192812/4192956
[pid=18551] ppid=18549 vsize=60984 CPUtime=15.89
/proc/18551/stat : 18551 (pcs.big) R 18549 18551 17638 0 -1 4194304 18379 656 0 0 1581 8 0 0 25 0 1 0 59841844 62447616 14422 996147200 134512640 135215973 4294956304 18446744073709551615 134532916 0 0 4096 0 0 0 0 17 1 0 0
/proc/18551/statm: 15246 14422 409 171 0 14171 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 60984

[startup+19.2018 s]
/proc/loadavg: 2.18 2.06 2.02 3/82 18556
/proc/meminfo: memFree=1379392/2055920 swapFree=4192812/4192956
[pid=18551] ppid=18549 vsize=60984 CPUtime=19.07
/proc/18551/stat : 18551 (pcs.big) R 18549 18551 17638 0 -1 4194304 18379 656 0 0 1899 8 0 0 25 0 1 0 59841844 62447616 14422 996147200 134512640 135215973 4294956304 18446744073709551615 134647995 0 0 4096 0 0 0 0 17 1 0 0
/proc/18551/statm: 15246 14422 409 171 0 14171 0
Current children cumulated CPU time (s) 19.07
Current children cumulated vsize (KiB) 60984

[startup+20.002 s]
/proc/loadavg: 2.17 2.05 2.02 3/82 18556
/proc/meminfo: memFree=1375744/2055920 swapFree=4192812/4192956
[pid=18551] ppid=18549 vsize=66256 CPUtime=19.88
/proc/18551/stat : 18551 (pcs.big) R 18549 18551 17638 0 -1 4194304 19672 656 0 0 1979 9 0 0 25 0 1 0 59841844 67846144 15715 996147200 134512640 135215973 4294956304 18446744073709551615 2930299 0 0 4096 0 0 0 0 17 1 0 0
/proc/18551/statm: 16564 15715 409 171 0 15489 0
Current children cumulated CPU time (s) 19.88
Current children cumulated vsize (KiB) 66256

[startup+20.4011 s]
/proc/loadavg: 2.17 2.05 2.02 3/82 18556
/proc/meminfo: memFree=1375744/2055920 swapFree=4192812/4192956
[pid=18551] ppid=18549 vsize=137104 CPUtime=20.27
/proc/18551/stat : 18551 (pcs.big) R 18549 18551 17638 0 -1 4194304 33961 656 0 0 2013 14 0 0 25 0 1 0 59841844 140394496 30005 996147200 134512640 135215973 4294956304 18446744073709551615 2930299 0 0 4096 0 0 0 0 17 1 0 0
/proc/18551/statm: 34276 30010 409 171 0 33201 0
Current children cumulated CPU time (s) 20.27
Current children cumulated vsize (KiB) 137104

[startup+20.6011 s]
/proc/loadavg: 2.17 2.05 2.02 3/82 18556
/proc/meminfo: memFree=1375744/2055920 swapFree=4192812/4192956
[pid=18551] ppid=18549 vsize=124876 CPUtime=20.47
/proc/18551/stat : 18551 (pcs.big) R 18549 18551 17638 0 -1 4194304 34926 656 0 0 2032 15 0 0 25 0 1 0 59841844 127873024 27248 996147200 134512640 135215973 4294956304 18446744073709551615 134532701 0 0 4096 0 0 0 0 17 1 0 0
/proc/18551/statm: 31219 27248 409 171 0 30144 0
Current children cumulated CPU time (s) 20.47
Current children cumulated vsize (KiB) 124876

Child status: 0
Real time (s): 20.6502
CPU time (s): 20.5379
CPU user time (s): 20.3649
CPU system time (s): 0.172973
CPU usage (%): 99.456
Max. virtual memory (cumulated for all children) (KiB): 139876

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 20.3649
system time used= 0.172973
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 35584
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= 19
involuntary context switches= 644

runsolver used 0.025996 second user time and 0.057991 second system time

The end

Launcher Data 

Begin job on node23 at 2009-07-16 09:02:35
IDJOB=2087521
IDBENCH=58735
IDSOLVER=733
FILE ID=node23/2087521-1247727754
PBS_JOBID= 9521586
Free space on /tmp= 66392 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/queens/normalized-queens-80.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2087521-1247727754/watcher-2087521-1247727754 -o /tmp/evaluation-result-2087521-1247727754/solver-2087521-1247727754 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1752474396 HOME/instance-2087521-1247727754.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= c42d8243620143429735bcf3368436b8
RANDOM SEED=1752474396

node23.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.277
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		: 3000.277
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:       1436264 kB
Buffers:         87112 kB
Cached:         352780 kB
SwapCached:          0 kB
Active:         149216 kB
Inactive:       391240 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1436264 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2604 kB
Writeback:           0 kB
Mapped:         120940 kB
Slab:            64236 kB
Committed_AS:   613812 kB
PageTables:       2008 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= 66392 MiB
End job on node23 at 2009-07-16 09:02:55