Trace number 2078832

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-restart 0.3.2SAT 16.0136 16.1719

DiagnosticValue
ASSIGNMENTS5

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 

0.00/0.02	c has big domains
0.00/0.02	c big-domain mode
0.00/0.04	c Seed is 1736195426
0.00/0.04	c Constructing HOME/instance-2078832-1247716548.xml 
1.07/1.15	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)
1.07/1.15	c  with 22801 constraints
1.07/1.15	c Solving 5 backtracks
15.93/16.14	s SATISFIABLE
15.93/16.14	c V0=47, V1=35, V2=38, V3=40, V4=42, V5=49, V6=74, V7=61, V8=6, V9=89, V10=85, V11=73, V12=51, V13=37, V14=13, V15=15, V16=8, V17=31, V18=27, V19=83, V20=45, V21=48, V22=50, V23=43, V24=46, V25=30, V26=41, V27=56, V28=21, V29=10, V30=75, V31=11, V32=44, V33=59, V34=53, V35=92, V36=84, V37=87, V38=55, V39=82, V40=95, V41=76, V42=32, V43=39, V44=90, V45=33, V46=7, V47=5, V48=3, V49=62, V50=36, V51=81, V52=63, V53=28, V54=60, V55=9, V56=34, V57=2, V58=4, V59=66, V60=1, V61=24, V62=64, V63=86, V64=96, V65=68, V66=57, V67=52, V68=69, V69=79, V70=26, V71=58, V72=93, V73=91, V74=71, V75=19, V76=80, V77=54, V78=94, V79=18, V80=88, V81=65, V82=77, V83=72, V84=78, V85=16, V86=22, V87=70, V88=25, V89=29, V90=17, V91=67, V92=20, V93=23, V94=12, V95=14, 
15.93/16.14	v 47 35 38 40 42 49 74 61 6 89 85 73 51 37 13 15 8 31 27 83 45 48 50 43 46 30 41 56 21 10 75 11 44 59 53 92 84 87 55 82 95 76 32 39 90 33 7 5 3 62 36 81 63 28 60 9 34 2 4 66 1 24 64 86 96 68 57 52 69 79 26 58 93 91 71 19 80 54 94 18 88 65 77 72 78 16 22 70 25 29 17 67 20 23 12 14 
15.93/16.15	d ASSIGNMENTS 5

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-2078832-1247716548/watcher-2078832-1247716548 -o /tmp/evaluation-result-2078832-1247716548/solver-2078832-1247716548 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1736195426 HOME/instance-2078832-1247716548.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: 2.00 2.00 2.05 4/73 13466
/proc/meminfo: memFree=1218136/2055920 swapFree=4192812/4192956
[pid=13466] ppid=13464 vsize=5260 CPUtime=0
/proc/13466/stat : 13466 (pcssolve) R 13464 13466 12423 0 -1 4194304 67 0 0 0 0 0 0 0 20 0 1 0 58718167 5386240 50 996147200 4194304 4889804 548682068800 18446744073709551615 250966232931 0 0 4096 0 0 0 0 17 1 0 0
/proc/13466/statm: 1315 50 36 169 0 14 0

[startup+0.106739 s]
/proc/loadavg: 2.00 2.00 2.05 4/73 13466
/proc/meminfo: memFree=1218136/2055920 swapFree=4192812/4192956
[pid=13466] ppid=13464 vsize=5020 CPUtime=0.07
/proc/13466/stat : 13466 (pcs.big) R 13464 13466 12423 0 -1 4194304 932 656 0 0 7 0 0 0 18 0 1 0 58718167 5140480 563 996147200 134512640 135215973 4294956304 18446744073709551615 4159198933 0 0 4096 0 0 0 0 17 1 0 0
/proc/13466/statm: 1255 563 372 171 0 180 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5020

[startup+0.201742 s]
/proc/loadavg: 2.00 2.00 2.05 4/73 13466
/proc/meminfo: memFree=1218136/2055920 swapFree=4192812/4192956
[pid=13466] ppid=13464 vsize=5812 CPUtime=0.17
/proc/13466/stat : 13466 (pcs.big) R 13464 13466 12423 0 -1 4194304 1107 656 0 0 17 0 0 0 18 0 1 0 58718167 5951488 738 996147200 134512640 135215973 4294956304 18446744073709551615 134773472 0 0 4096 0 0 0 0 17 1 0 0
/proc/13466/statm: 1453 738 372 171 0 378 0
Current children cumulated CPU time (s) 0.17
Current children cumulated vsize (KiB) 5812

[startup+0.301752 s]
/proc/loadavg: 2.00 2.00 2.05 4/73 13466
/proc/meminfo: memFree=1218136/2055920 swapFree=4192812/4192956
[pid=13466] ppid=13464 vsize=6472 CPUtime=0.27
/proc/13466/stat : 13466 (pcs.big) R 13464 13466 12423 0 -1 4194304 1290 656 0 0 27 0 0 0 19 0 1 0 58718167 6627328 921 996147200 134512640 135215973 4294956304 18446744073709551615 134884980 0 0 4096 0 0 0 0 17 1 0 0
/proc/13466/statm: 1618 921 372 171 0 543 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 6472

[startup+0.701795 s]
/proc/loadavg: 2.00 2.00 2.05 4/73 13466
/proc/meminfo: memFree=1218136/2055920 swapFree=4192812/4192956
[pid=13466] ppid=13464 vsize=10264 CPUtime=0.67
/proc/13466/stat : 13466 (pcs.big) R 13464 13466 12423 0 -1 4194304 2232 656 0 0 66 1 0 0 23 0 1 0 58718167 10510336 1830 996147200 134512640 135215973 4294956304 18446744073709551615 12365956 0 0 4096 0 0 0 0 17 1 0 0
/proc/13466/statm: 2566 1830 386 171 0 1491 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 10264

[startup+1.50188 s]
/proc/loadavg: 2.00 2.00 2.05 3/74 13471
/proc/meminfo: memFree=1209040/2055920 swapFree=4192812/4192956
[pid=13466] ppid=13464 vsize=21824 CPUtime=1.46
/proc/13466/stat : 13466 (pcs.big) R 13464 13466 12423 0 -1 4194304 6080 656 0 0 143 3 0 0 25 0 1 0 58718167 22347776 4359 996147200 134512640 135215973 4294956304 18446744073709551615 135096502 0 0 4096 0 0 0 0 17 1 0 0
/proc/13466/statm: 5456 4359 408 171 0 4381 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 21824

[startup+3.10103 s]
/proc/loadavg: 2.08 2.02 2.05 3/74 13471
/proc/meminfo: memFree=1188560/2055920 swapFree=4192812/4192956
[pid=13466] ppid=13464 vsize=71252 CPUtime=3.04
/proc/13466/stat : 13466 (pcs.big) R 13464 13466 12423 0 -1 4194304 19623 656 0 0 296 8 0 0 25 0 1 0 58718167 72962048 15404 996147200 134512640 135215973 4294956304 18446744073709551615 134585708 0 0 4096 0 0 0 0 17 1 0 0
/proc/13466/statm: 17813 15404 408 171 0 16738 0
Current children cumulated CPU time (s) 3.04
Current children cumulated vsize (KiB) 71252

[startup+6.30134 s]
/proc/loadavg: 2.08 2.02 2.05 3/74 13471
/proc/meminfo: memFree=1133968/2055920 swapFree=4192812/4192956
[pid=13466] ppid=13464 vsize=168348 CPUtime=6.21
/proc/13466/stat : 13466 (pcs.big) R 13464 13466 12423 0 -1 4194304 45551 656 0 0 602 19 0 0 25 0 1 0 58718167 172388352 38003 996147200 134512640 135215973 4294956304 18446744073709551615 134532946 0 0 4096 0 0 0 0 17 1 0 0
/proc/13466/statm: 42087 38003 408 171 0 41012 0
Current children cumulated CPU time (s) 6.21
Current children cumulated vsize (KiB) 168348

[startup+12.702 s]
/proc/loadavg: 2.07 2.02 2.05 3/74 13471
/proc/meminfo: memFree=1056464/2055920 swapFree=4192812/4192956
[pid=13466] ppid=13464 vsize=168484 CPUtime=12.55
/proc/13466/stat : 13466 (pcs.big) R 13464 13466 12423 0 -1 4194304 47035 656 0 0 1236 19 0 0 25 0 1 0 58718167 172527616 39487 996147200 134512640 135215973 4294956304 18446744073709551615 134532946 0 0 4096 0 0 0 0 17 1 0 0
/proc/13466/statm: 42121 39487 410 171 0 41046 0
Current children cumulated CPU time (s) 12.55
Current children cumulated vsize (KiB) 168484

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

[startup+12.802 s]
/proc/loadavg: 2.07 2.02 2.05 3/74 13471
/proc/meminfo: memFree=1056464/2055920 swapFree=4192812/4192956
[pid=13466] ppid=13464 vsize=168484 CPUtime=12.65
/proc/13466/stat : 13466 (pcs.big) R 13464 13466 12423 0 -1 4194304 47035 656 0 0 1246 19 0 0 25 0 1 0 58718167 172527616 39487 996147200 134512640 135215973 4294956304 18446744073709551615 135094313 0 0 4096 0 0 0 0 17 1 0 0
/proc/13466/statm: 42121 39487 410 171 0 41046 0
Current children cumulated CPU time (s) 12.65
Current children cumulated vsize (KiB) 168484

[startup+14.4061 s]
/proc/loadavg: 2.07 2.02 2.05 3/74 13471
/proc/meminfo: memFree=1056336/2055920 swapFree=4192812/4192956
[pid=13466] ppid=13464 vsize=168484 CPUtime=14.23
/proc/13466/stat : 13466 (pcs.big) R 13464 13466 12423 0 -1 4194304 47035 656 0 0 1404 19 0 0 25 0 1 0 58718167 172527616 39487 996147200 134512640 135215973 4294956304 18446744073709551615 4158960150 0 0 4096 0 0 0 0 17 1 0 0
/proc/13466/statm: 42121 39487 410 171 0 41046 0
Current children cumulated CPU time (s) 14.23
Current children cumulated vsize (KiB) 168484

[startup+15.2012 s]
/proc/loadavg: 2.07 2.02 2.05 3/74 13471
/proc/meminfo: memFree=1056336/2055920 swapFree=4192812/4192956
[pid=13466] ppid=13464 vsize=168484 CPUtime=15.02
/proc/13466/stat : 13466 (pcs.big) R 13464 13466 12423 0 -1 4194304 47035 656 0 0 1483 19 0 0 25 0 1 0 58718167 172527616 39487 996147200 134512640 135215973 4294956304 18446744073709551615 4158960021 0 0 4096 0 0 0 0 17 1 0 0
/proc/13466/statm: 42121 39487 410 171 0 41046 0
Current children cumulated CPU time (s) 15.02
Current children cumulated vsize (KiB) 168484

[startup+15.6012 s]
/proc/loadavg: 2.07 2.02 2.05 3/74 13471
/proc/meminfo: memFree=1056208/2055920 swapFree=4192812/4192956
[pid=13466] ppid=13464 vsize=168484 CPUtime=15.42
/proc/13466/stat : 13466 (pcs.big) R 13464 13466 12423 0 -1 4194304 47035 656 0 0 1523 19 0 0 25 0 1 0 58718167 172527616 39487 996147200 134512640 135215973 4294956304 18446744073709551615 134584195 0 0 4096 0 0 0 0 17 1 0 0
/proc/13466/statm: 42121 39487 410 171 0 41046 0
Current children cumulated CPU time (s) 15.42
Current children cumulated vsize (KiB) 168484

[startup+16.0023 s]
/proc/loadavg: 2.07 2.02 2.05 3/74 13471
/proc/meminfo: memFree=1056208/2055920 swapFree=4192812/4192956
[pid=13466] ppid=13464 vsize=167456 CPUtime=15.83
/proc/13466/stat : 13466 (pcs.big) R 13464 13466 12423 0 -1 4194304 47200 656 0 0 1563 20 0 0 25 0 1 0 58718167 171474944 39473 996147200 134512640 135215973 4294956304 18446744073709551615 134985473 0 0 4096 0 0 0 0 17 1 0 0
/proc/13466/statm: 41864 39473 410 171 0 40789 0
Current children cumulated CPU time (s) 15.83
Current children cumulated vsize (KiB) 167456

[startup+16.1023 s]
/proc/loadavg: 2.07 2.02 2.05 3/74 13471
/proc/meminfo: memFree=1056208/2055920 swapFree=4192812/4192956
[pid=13466] ppid=13464 vsize=165776 CPUtime=15.93
/proc/13466/stat : 13466 (pcs.big) R 13464 13466 12423 0 -1 4194304 47200 656 0 0 1573 20 0 0 25 0 1 0 58718167 169754624 39053 996147200 134512640 135215973 4294956304 18446744073709551615 134532711 0 0 4096 0 0 0 0 17 1 0 0
/proc/13466/statm: 41444 39053 410 171 0 40369 0
Current children cumulated CPU time (s) 15.93
Current children cumulated vsize (KiB) 165776

Child status: 0
Real time (s): 16.1719
CPU time (s): 16.0136
CPU user time (s): 15.7806
CPU system time (s): 0.232964
CPU usage (%): 99.0211
Max. virtual memory (cumulated for all children) (KiB): 181664

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.7806
system time used= 0.232964
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 47859
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= 367

runsolver used 0.020996 second user time and 0.05999 second system time

The end

Launcher Data 

Begin job on node56 at 2009-07-16 05:55:49
IDJOB=2078832
IDBENCH=56817
IDSOLVER=734
FILE ID=node56/2078832-1247716548
PBS_JOBID= 9521394
Free space on /tmp= 103076 MiB

SOLVER NAME= pcs-restart 0.2.restart
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-2078832-1247716548/watcher-2078832-1247716548 -o /tmp/evaluation-result-2078832-1247716548/solver-2078832-1247716548 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1736195426 HOME/instance-2078832-1247716548.xml

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

MD5SUM BENCH= 72b10381b21e6b6e79bdf3ac7e3009a4
RANDOM SEED=1736195426

node56.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		: 3000.209
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		: 3000.209
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:       1218616 kB
Buffers:         84640 kB
Cached:         357088 kB
SwapCached:          0 kB
Active:         491620 kB
Inactive:       263528 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1218616 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            5324 kB
Writeback:           0 kB
Mapped:         323980 kB
Slab:            66976 kB
Committed_AS:   752408 kB
PageTables:       2416 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= 103072 MiB
End job on node56 at 2009-07-16 05:56:05