Trace number 2087522

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 13.5059 13.5841

DiagnosticValue
ASSIGNMENTS16

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
0.17/0.21	c Seed is 1272367509
0.17/0.21	c Constructing HOME/instance-2087522-1247727766.xml 
0.17/0.24	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)
0.17/0.24	c  with 12641 constraints
0.17/0.24	c Solving 16 backtracks
13.40/13.56	s SATISFIABLE
13.40/13.56	c V0=69, V1=79, V2=12, V3=60, V4=18, V5=59, V6=61, V7=66, V8=20, V9=22, V10=55, V11=57, V12=46, V13=4, V14=65, V15=37, V16=19, V17=16, V18=3, V19=62, V20=7, V21=45, V22=2, V23=54, V24=1, V25=50, V26=58, V27=64, V28=6, V29=8, V30=11, V31=47, V32=40, V33=38, V34=36, V35=39, V36=77, V37=52, V38=44, V39=5, V40=67, V41=74, V42=17, V43=10, V44=70, V45=31, V46=75, V47=56, V48=9, V49=13, V50=78, V51=68, V52=73, V53=76, V54=72, V55=53, V56=48, V57=28, V58=42, V59=27, V60=34, V61=51, V62=21, V63=33, V64=26, V65=23, V66=29, V67=49, V68=41, V69=80, V70=63, V71=71, V72=15, V73=25, V74=43, V75=35, V76=30, V77=24, V78=14, V79=32, 
13.40/13.56	v 69 79 12 60 18 59 61 66 20 22 55 57 46 4 65 37 19 16 3 62 7 45 2 54 1 50 58 64 6 8 11 47 40 38 36 39 77 52 44 5 67 74 17 10 70 31 75 56 9 13 78 68 73 76 72 53 48 28 42 27 34 51 21 33 26 23 29 49 41 80 63 71 15 25 43 35 30 24 14 32 
13.40/13.56	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-2087522-1247727766/watcher-2087522-1247727766 -o /tmp/evaluation-result-2087522-1247727766/solver-2087522-1247727766 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1272367509 HOME/instance-2087522-1247727766.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: 1.97 2.01 1.99 4/72 18329
/proc/meminfo: memFree=1256392/2055920 swapFree=4192812/4192956
[pid=18329] ppid=18327 vsize=5356 CPUtime=0
/proc/18329/stat : 18329 (pcssolve) R 18327 18329 17714 0 -1 4194304 276 0 0 0 0 0 0 0 24 0 1 0 59844383 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 259353110986 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/18329/statm: 1339 241 200 169 0 50 0
[pid=18330] ppid=18329 vsize=0 CPUtime=0
/proc/18330/stat : 18330 (fgrep) Z 18329 18329 17714 0 -1 4194316 155 0 0 0 0 0 0 0 25 0 1 0 59844383 0 0 996147200 0 0 0 0 0 0 0 4096 0 18446744071563351923 0 0 17 1 0 0
/proc/18330/statm: 0 0 0 0 0 0 0

[startup+0.203521 s]
/proc/loadavg: 1.97 2.01 1.99 4/72 18329
/proc/meminfo: memFree=1256392/2055920 swapFree=4192812/4192956
[pid=18329] ppid=18327 vsize=7736 CPUtime=0.17
/proc/18329/stat : 18329 (pcs.big) R 18327 18329 17714 0 -1 4194304 1650 656 0 0 17 0 0 0 18 0 1 0 59844383 7921664 1091 996147200 134512640 135215973 4294956304 18446744073709551615 134608549 0 0 4096 0 0 0 0 17 1 0 0
/proc/18329/statm: 1934 1091 385 171 0 859 0
Current children cumulated CPU time (s) 0.17
Current children cumulated vsize (KiB) 7736

[startup+0.302531 s]
/proc/loadavg: 1.97 2.01 1.99 4/72 18329
/proc/meminfo: memFree=1256392/2055920 swapFree=4192812/4192956
[pid=18329] ppid=18327 vsize=9712 CPUtime=0.27
/proc/18329/stat : 18329 (pcs.big) R 18327 18329 17714 0 -1 4194304 2478 656 0 0 26 1 0 0 19 0 1 0 59844383 9945088 1645 996147200 134512640 135215973 4294956304 18446744073709551615 134908065 0 0 4096 0 0 0 0 17 1 0 0
/proc/18329/statm: 2428 1645 403 171 0 1353 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 9712

[startup+0.401546 s]
/proc/loadavg: 1.97 2.01 1.99 4/72 18329
/proc/meminfo: memFree=1256392/2055920 swapFree=4192812/4192956
[pid=18329] ppid=18327 vsize=11732 CPUtime=0.37
/proc/18329/stat : 18329 (pcs.big) R 18327 18329 17714 0 -1 4194304 3126 656 0 0 36 1 0 0 20 0 1 0 59844383 12013568 2084 996147200 134512640 135215973 4294956304 18446744073709551615 134908094 0 0 4096 0 0 0 0 17 1 0 0
/proc/18329/statm: 2933 2084 407 171 0 1858 0
Current children cumulated CPU time (s) 0.37
Current children cumulated vsize (KiB) 11732

[startup+0.701578 s]
/proc/loadavg: 1.97 2.01 1.99 4/72 18329
/proc/meminfo: memFree=1256392/2055920 swapFree=4192812/4192956
[pid=18329] ppid=18327 vsize=15640 CPUtime=0.67
/proc/18329/stat : 18329 (pcs.big) R 18327 18329 17714 0 -1 4194304 4492 656 0 0 65 2 0 0 22 0 1 0 59844383 16015360 3033 996147200 134512640 135215973 4294956304 18446744073709551615 134908087 0 0 4096 0 0 0 0 17 1 0 0
/proc/18329/statm: 3910 3033 407 171 0 2835 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 15640

[startup+1.50167 s]
/proc/loadavg: 1.97 2.01 1.99 3/73 18334
/proc/meminfo: memFree=1230208/2055920 swapFree=4192812/4192956
[pid=18329] ppid=18327 vsize=24644 CPUtime=1.47
/proc/18329/stat : 18329 (pcs.big) R 18327 18329 17714 0 -1 4194304 7307 656 0 0 144 3 0 0 25 0 1 0 59844383 25235456 5015 996147200 134512640 135215973 4294956304 18446744073709551615 134640936 0 0 4096 0 0 0 0 17 1 0 0
/proc/18329/statm: 6161 5015 407 171 0 5086 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 24644

[startup+3.10186 s]
/proc/loadavg: 1.97 2.01 1.99 3/73 18334
/proc/meminfo: memFree=1221440/2055920 swapFree=4192812/4192956
[pid=18329] ppid=18327 vsize=52156 CPUtime=3.06
/proc/18329/stat : 18329 (pcs.big) R 18327 18329 17714 0 -1 4194304 14725 656 0 0 299 7 0 0 25 0 1 0 59844383 53407744 10768 996147200 134512640 135215973 4294956304 18446744073709551615 134585804 0 0 4096 0 0 0 0 17 1 0 0
/proc/18329/statm: 13039 10768 407 171 0 11964 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 52156

[startup+6.30124 s]
/proc/loadavg: 1.97 2.01 1.99 3/73 18334
/proc/meminfo: memFree=1175936/2055920 swapFree=4192812/4192956
[pid=18329] ppid=18327 vsize=60604 CPUtime=6.24
/proc/18329/stat : 18329 (pcs.big) R 18327 18329 17714 0 -1 4194304 18013 656 0 0 616 8 0 0 25 0 1 0 59844383 62058496 14056 996147200 134512640 135215973 4294956304 18446744073709551615 6264443 0 0 4096 0 0 0 0 17 1 0 0
/proc/18329/statm: 15151 14056 407 171 0 14076 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 60604

[startup+12.702 s]
/proc/loadavg: 1.98 2.01 1.99 3/73 18334
/proc/meminfo: memFree=1089856/2055920 swapFree=4192812/4192956
[pid=18329] ppid=18327 vsize=123012 CPUtime=12.61
/proc/18329/stat : 18329 (pcs.big) R 18327 18329 17714 0 -1 4194304 34115 656 0 0 1246 15 0 0 25 0 1 0 59844383 125964288 26829 996147200 134512640 135215973 4294956304 18446744073709551615 4158960021 0 0 4096 0 0 0 0 17 1 0 0
/proc/18329/statm: 30753 26829 409 171 0 29678 0
Current children cumulated CPU time (s) 12.61
Current children cumulated vsize (KiB) 123012

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

[startup+12.902 s]
/proc/loadavg: 1.98 2.01 1.99 3/73 18334
/proc/meminfo: memFree=1089856/2055920 swapFree=4192812/4192956
[pid=18329] ppid=18327 vsize=123012 CPUtime=12.81
/proc/18329/stat : 18329 (pcs.big) R 18327 18329 17714 0 -1 4194304 34115 656 0 0 1266 15 0 0 25 0 1 0 59844383 125964288 26829 996147200 134512640 135215973 4294956304 18446744073709551615 134597380 0 0 4096 0 0 0 0 17 1 0 0
/proc/18329/statm: 30753 26829 409 171 0 29678 0
Current children cumulated CPU time (s) 12.81
Current children cumulated vsize (KiB) 123012

[startup+13.3011 s]
/proc/loadavg: 1.98 2.01 1.99 3/73 18334
/proc/meminfo: memFree=1086080/2055920 swapFree=4192812/4192956
[pid=18329] ppid=18327 vsize=123012 CPUtime=13.21
/proc/18329/stat : 18329 (pcs.big) R 18327 18329 17714 0 -1 4194304 34115 656 0 0 1306 15 0 0 25 0 1 0 59844383 125964288 26829 996147200 134512640 135215973 4294956304 18446744073709551615 134600490 0 0 4096 0 0 0 0 17 1 0 0
/proc/18329/statm: 30753 26829 409 171 0 29678 0
Current children cumulated CPU time (s) 13.21
Current children cumulated vsize (KiB) 123012

[startup+13.5011 s]
/proc/loadavg: 1.98 2.01 1.99 3/73 18334
/proc/meminfo: memFree=1086080/2055920 swapFree=4192812/4192956
[pid=18329] ppid=18327 vsize=123012 CPUtime=13.4
/proc/18329/stat : 18329 (pcs.big) R 18327 18329 17714 0 -1 4194304 34115 656 0 0 1325 15 0 0 25 0 1 0 59844383 125964288 26829 996147200 134512640 135215973 4294956304 18446744073709551615 134588312 0 0 4096 0 0 0 0 17 1 0 0
/proc/18329/statm: 30753 26829 409 171 0 29678 0
Current children cumulated CPU time (s) 13.4
Current children cumulated vsize (KiB) 123012

Child status: 0
Real time (s): 13.5841
CPU time (s): 13.5059
CPU user time (s): 13.325
CPU system time (s): 0.180972
CPU usage (%): 99.4246
Max. virtual memory (cumulated for all children) (KiB): 125372

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 13.325
system time used= 0.180972
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 34773
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= 17
involuntary context switches= 172

runsolver used 0.017997 second user time and 0.041993 second system time

The end

Launcher Data 

Begin job on node1 at 2009-07-16 09:02:46
IDJOB=2087522
IDBENCH=58735
IDSOLVER=734
FILE ID=node1/2087522-1247727766
PBS_JOBID= 9521585
Free space on /tmp= 66384 MiB

SOLVER NAME= pcs-restart 0.2.restart
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-2087522-1247727766/watcher-2087522-1247727766 -o /tmp/evaluation-result-2087522-1247727766/solver-2087522-1247727766 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1272367509 HOME/instance-2087522-1247727766.xml

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

MD5SUM BENCH= c42d8243620143429735bcf3368436b8
RANDOM SEED=1272367509

node1.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		: 3000.216
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		: 3000.216
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:       1257064 kB
Buffers:         71868 kB
Cached:         252492 kB
SwapCached:          0 kB
Active:         486904 kB
Inactive:       246616 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1257064 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2112 kB
Writeback:           0 kB
Mapped:         420720 kB
Slab:            49856 kB
Committed_AS:  1065244 kB
PageTables:       2756 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= 66384 MiB
End job on node1 at 2009-07-16 09:03:00