Trace number 2078831

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 27.0279 27.0374

DiagnosticValue
ASSIGNMENTS16

General information on the benchmark

Namecsp/nengfa/
normalized-queens1.xml
MD5SUM72b10381b21e6b6e79bdf3ac7e3009a4
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 benchmark4.6263
Satisfiable
(Un)Satisfiability was proved
Number of variables96
Number of constraints13680
Maximum constraint arity2
Maximum domain size96
Number of constraints which are defined in extension0
Number of constraints which are defined in intension13680
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
0.00/0.02	c Seed is 299254272
0.00/0.02	c Constructing HOME/instance-2078831-1247716547.xml 
0.98/1.02	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,V80,V81,V82,V83,V84,V85,V86,V87,V88,V89,V90,V91,V92,V93,V94,V95,V0)
0.98/1.02	c  with 22801 constraints
0.98/1.02	c Solving 16 backtracks 1 restarts
26.97/27.01	s SATISFIABLE
26.97/27.01	c V0=35, V1=17, V2=28, V3=69, V4=33, V5=26, V6=34, V7=27, V8=40, V9=86, V10=32, V11=30, V12=84, V13=88, V14=38, V15=46, V16=39, V17=12, V18=8, V19=80, V20=31, V21=83, V22=23, V23=5, V24=9, V25=14, V26=18, V27=11, V28=15, V29=20, V30=29, V31=56, V32=50, V33=91, V34=71, V35=85, V36=75, V37=89, V38=81, V39=90, V40=93, V41=95, V42=72, V43=92, V44=47, V45=87, V46=94, V47=53, V48=25, V49=96, V50=16, V51=7, V52=60, V53=41, V54=6, V55=48, V56=52, V57=59, V58=44, V59=63, V60=21, V61=19, V62=77, V63=68, V64=24, V65=82, V66=78, V67=1, V68=10, V69=2, V70=64, V71=22, V72=79, V73=3, V74=74, V75=4, V76=73, V77=13, V78=76, V79=42, V80=37, V81=49, V82=36, V83=45, V84=43, V85=57, V86=55, V87=51, V88=58, V89=54, V90=66, V91=62, V92=65, V93=67, V94=61, V95=70, 
26.97/27.01	v 35 17 28 69 33 26 34 27 40 86 32 30 84 88 38 46 39 12 8 80 31 83 23 5 9 14 18 11 15 20 29 56 50 91 71 85 75 89 81 90 93 95 72 92 47 87 94 53 25 96 16 7 60 41 6 48 52 59 44 63 21 19 77 68 24 82 78 1 10 2 64 22 79 3 74 4 73 13 76 42 37 49 36 45 43 57 55 51 58 54 66 62 65 67 61 70 
26.97/27.01	d ASSIGNMENTS 16

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-2078831-1247716547/watcher-2078831-1247716547 -o /tmp/evaluation-result-2078831-1247716547/solver-2078831-1247716547 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 299254272 HOME/instance-2078831-1247716547.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: 2.08 2.01 2.00 4/82 17111
/proc/meminfo: memFree=1225424/2055920 swapFree=4192812/4192956
[pid=17111] ppid=17109 vsize=5356 CPUtime=0
/proc/17111/stat : 17111 (pcssolve) S 17109 17111 15200 0 -1 4194304 305 0 0 0 0 0 0 0 18 0 1 0 58719803 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 269807575876 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/17111/statm: 1339 242 201 169 0 50 0
[pid=17112] ppid=17111 vsize=5356 CPUtime=0
/proc/17112/stat : 17112 (pcssolve) R 17111 17111 15200 0 -1 4194368 22 0 0 0 0 0 0 0 19 0 1 0 58719804 5484544 243 996147200 4194304 4889804 548682068800 18446744073709551615 269807578407 0 0 4096 0 0 0 0 17 1 0 0
/proc/17112/statm: 1339 243 202 169 0 50 0
[pid=17113] ppid=17111 vsize=3676 CPUtime=0
/proc/17113/stat : 17113 (grep) S 17111 17111 15200 0 -1 4194304 154 0 0 0 0 0 0 0 18 0 1 0 58719804 3764224 121 996147200 4194304 4274172 548682069040 18446744073709551615 269807747154 0 0 4096 0 18446744071563648864 0 0 17 1 0 0
/proc/17113/statm: 919 121 99 19 0 43 0

[startup+0.018655 s]
/proc/loadavg: 2.08 2.01 2.00 4/82 17111
/proc/meminfo: memFree=1225424/2055920 swapFree=4192812/4192956
[pid=17111] ppid=17109 vsize=5356 CPUtime=0
/proc/17111/stat : 17111 (pcssolve) S 17109 17111 15200 0 -1 4194304 339 317 0 0 0 0 0 0 19 0 1 0 58719803 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 269807575876 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/17111/statm: 1339 242 201 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.101665 s]
/proc/loadavg: 2.08 2.01 2.00 4/82 17111
/proc/meminfo: memFree=1225424/2055920 swapFree=4192812/4192956
[pid=17111] ppid=17109 vsize=5152 CPUtime=0.08
/proc/17111/stat : 17111 (pcs.big) R 17109 17111 15200 0 -1 4194304 953 656 0 0 8 0 0 0 20 0 1 0 58719803 5275648 584 996147200 134512640 135215973 4294956304 18446744073709551615 6002299 0 0 4096 0 0 0 0 17 0 0 0
/proc/17111/statm: 1288 584 372 171 0 213 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5152

[startup+0.302024 s]
/proc/loadavg: 2.08 2.01 2.00 4/82 17111
/proc/meminfo: memFree=1225424/2055920 swapFree=4192812/4192956
[pid=17111] ppid=17109 vsize=6868 CPUtime=0.27
/proc/17111/stat : 17111 (pcs.big) R 17109 17111 15200 0 -1 4194304 1369 656 0 0 27 0 0 0 22 0 1 0 58719803 7032832 1000 996147200 134512640 135215973 4294956304 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/17111/statm: 1717 1000 372 171 0 642 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 6868

[startup+0.701728 s]
/proc/loadavg: 2.08 2.01 2.00 4/82 17111
/proc/meminfo: memFree=1225424/2055920 swapFree=4192812/4192956
[pid=17111] ppid=17109 vsize=11068 CPUtime=0.67
/proc/17111/stat : 17111 (pcs.big) R 17109 17111 15200 0 -1 4194304 2467 656 0 0 67 0 0 0 25 0 1 0 58719803 11333632 1959 996147200 134512640 135215973 4294956304 18446744073709551615 134837310 0 0 4096 0 0 0 0 17 0 0 0
/proc/17111/statm: 2767 1959 386 171 0 1692 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 11068

[startup+1.50082 s]
/proc/loadavg: 2.07 2.01 2.00 3/83 17116
/proc/meminfo: memFree=1216008/2055920 swapFree=4192812/4192956
[pid=17111] ppid=17109 vsize=24332 CPUtime=1.48
/proc/17111/stat : 17111 (pcs.big) R 17109 17111 15200 0 -1 4194304 6893 656 0 0 145 3 0 0 25 0 1 0 58719803 24915968 5172 996147200 134512640 135215973 4294956304 18446744073709551615 6002299 0 0 4096 0 0 0 0 17 0 0 0
/proc/17111/statm: 6083 5172 408 171 0 5008 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 24332

[startup+3.10198 s]
/proc/loadavg: 2.07 2.01 2.00 3/83 17116
/proc/meminfo: memFree=1194312/2055920 swapFree=4192812/4192956
[pid=17111] ppid=17109 vsize=73112 CPUtime=3.08
/proc/17111/stat : 17111 (pcs.big) R 17109 17111 15200 0 -1 4194304 20264 656 0 0 300 8 0 0 25 0 1 0 58719803 74866688 16045 996147200 134512640 135215973 4294956304 18446744073709551615 134597539 0 0 4096 0 0 0 0 17 0 0 0
/proc/17111/statm: 18278 16045 408 171 0 17203 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 73112

[startup+6.30233 s]
/proc/loadavg: 2.07 2.01 2.00 3/83 17116
/proc/meminfo: memFree=1135944/2055920 swapFree=4192812/4192956
[pid=17111] ppid=17109 vsize=172844 CPUtime=6.28
/proc/17111/stat : 17111 (pcs.big) R 17109 17111 15200 0 -1 4194304 46956 656 0 0 608 20 0 0 25 0 1 0 58719803 176992256 39408 996147200 134512640 135215973 4294956304 18446744073709551615 135094304 0 0 4096 0 0 0 0 17 0 0 0
/proc/17111/statm: 43211 39409 408 171 0 42136 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 172844

[startup+12.702 s]
/proc/loadavg: 2.06 2.01 2.00 3/83 17116
/proc/meminfo: memFree=1064072/2055920 swapFree=4192812/4192956
[pid=17111] ppid=17109 vsize=172844 CPUtime=12.67
/proc/17111/stat : 17111 (pcs.big) R 17109 17111 15200 0 -1 4194304 48137 656 0 0 1247 20 0 0 25 0 1 0 58719803 176992256 40589 996147200 134512640 135215973 4294956304 18446744073709551615 134585720 0 0 4096 0 0 0 0 17 0 0 0
/proc/17111/statm: 43211 40589 410 171 0 42136 0
Current children cumulated CPU time (s) 12.67
Current children cumulated vsize (KiB) 172844

[startup+25.5014 s]
/proc/loadavg: 2.05 2.01 2.00 3/83 17116
/proc/meminfo: memFree=1063624/2055920 swapFree=4192812/4192956
[pid=17111] ppid=17109 vsize=172844 CPUtime=25.47
/proc/17111/stat : 17111 (pcs.big) R 17109 17111 15200 0 -1 4194304 48284 656 0 0 2527 20 0 0 25 0 1 0 58719803 176992256 40736 996147200 134512640 135215973 4294956304 18446744073709551615 134532946 0 0 4096 0 0 0 0 17 0 0 0
/proc/17111/statm: 43211 40736 410 171 0 42136 0
Current children cumulated CPU time (s) 25.47
Current children cumulated vsize (KiB) 172844

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

[startup+26.3015 s]
/proc/loadavg: 2.05 2.01 2.00 3/83 17116
/proc/meminfo: memFree=1063624/2055920 swapFree=4192812/4192956
[pid=17111] ppid=17109 vsize=172844 CPUtime=26.27
/proc/17111/stat : 17111 (pcs.big) R 17109 17111 15200 0 -1 4194304 48284 656 0 0 2607 20 0 0 25 0 1 0 58719803 176992256 40736 996147200 134512640 135215973 4294956304 18446744073709551615 4158960578 0 0 4096 0 0 0 0 17 0 0 0
/proc/17111/statm: 43211 40736 410 171 0 42136 0
Current children cumulated CPU time (s) 26.27
Current children cumulated vsize (KiB) 172844

[startup+26.7018 s]
/proc/loadavg: 2.05 2.01 2.00 3/83 17116
/proc/meminfo: memFree=1063624/2055920 swapFree=4192812/4192956
[pid=17111] ppid=17109 vsize=172844 CPUtime=26.66
/proc/17111/stat : 17111 (pcs.big) R 17109 17111 15200 0 -1 4194304 48292 656 0 0 2646 20 0 0 25 0 1 0 58719803 176992256 40744 996147200 134512640 135215973 4294956304 18446744073709551615 134908075 0 0 4096 0 0 0 0 17 0 0 0
/proc/17111/statm: 43211 40744 410 171 0 42136 0
Current children cumulated CPU time (s) 26.66
Current children cumulated vsize (KiB) 172844

[startup+26.9015 s]
/proc/loadavg: 2.05 2.01 2.00 3/83 17116
/proc/meminfo: memFree=1063624/2055920 swapFree=4192812/4192956
[pid=17111] ppid=17109 vsize=170136 CPUtime=26.87
/proc/17111/stat : 17111 (pcs.big) R 17109 17111 15200 0 -1 4194304 48478 656 0 0 2666 21 0 0 25 0 1 0 58719803 174219264 40331 996147200 134512640 135215973 4294956304 18446744073709551615 134532677 0 0 4096 0 0 0 0 17 0 0 0
/proc/17111/statm: 42534 40331 410 171 0 41459 0
Current children cumulated CPU time (s) 26.87
Current children cumulated vsize (KiB) 170136

[startup+27.0015 s]
/proc/loadavg: 2.05 2.01 2.00 3/83 17116
/proc/meminfo: memFree=1063624/2055920 swapFree=4192812/4192956
[pid=17111] ppid=17109 vsize=170136 CPUtime=26.97
/proc/17111/stat : 17111 (pcs.big) R 17109 17111 15200 0 -1 4194304 48478 656 0 0 2676 21 0 0 25 0 1 0 58719803 174219264 40331 996147200 134512640 135215973 4294956304 18446744073709551615 134532677 0 0 4096 0 0 0 0 17 0 0 0
/proc/17111/statm: 42534 40331 410 171 0 41459 0
Current children cumulated CPU time (s) 26.97
Current children cumulated vsize (KiB) 170136

Child status: 0
Real time (s): 27.0374
CPU time (s): 27.0279
CPU user time (s): 26.7829
CPU system time (s): 0.244962
CPU usage (%): 99.9649
Max. virtual memory (cumulated for all children) (KiB): 176932

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 26.7829
system time used= 0.244962
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 49137
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= 20
involuntary context switches= 86

runsolver used 0.023996 second user time and 0.086986 second system time

The end

Launcher Data 

Begin job on node81 at 2009-07-16 05:55:47
IDJOB=2078831
IDBENCH=56817
IDSOLVER=733
FILE ID=node81/2078831-1247716547
PBS_JOBID= 9521337
Free space on /tmp= 126656 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/nengfa/normalized-queens1.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2078831-1247716547/watcher-2078831-1247716547 -o /tmp/evaluation-result-2078831-1247716547/solver-2078831-1247716547 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 299254272 HOME/instance-2078831-1247716547.xml

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

MD5SUM BENCH= 72b10381b21e6b6e79bdf3ac7e3009a4
RANDOM SEED=299254272

node81.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		: 3000.233
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		: 3000.233
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1225904 kB
Buffers:         92520 kB
Cached:         585168 kB
SwapCached:          0 kB
Active:         255336 kB
Inactive:       483636 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1225904 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            7016 kB
Writeback:           0 kB
Mapped:          81676 kB
Slab:            75928 kB
Committed_AS:   641416 kB
PageTables:       2008 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 126656 MiB
End job on node81 at 2009-07-16 05:56:14