Trace number 2080833

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 16.1505 16.2314

DiagnosticValue
ASSIGNMENTS4574

General information on the benchmark

Namecsp/langford3/
normalized-langford-3-19.xml
MD5SUMaaae6bd1bcabe60d1f4e8682f4b12268
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 benchmark2.88156
Satisfiable
(Un)Satisfiability was proved
Number of variables57
Number of constraints1634
Maximum constraint arity2
Maximum domain size57
Number of constraints which are defined in extension0
Number of constraints which are defined in intension1634
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
0.18/0.21	c Seed is 1363590488
0.18/0.21	c Constructing HOME/instance-2080833-1247718841.xml 
0.18/0.21	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,V0)
0.18/0.21	c  with 1635 constraints
0.18/0.21	c Solving 4574 backtracks 12 restarts
16.11/16.22	s SATISFIABLE
16.11/16.22	c V0=52, V1=40, V2=29, V3=39, V4=8, V5=41, V6=3, V7=27, V8=2, V9=4, V10=1, V11=5, V12=7, V13=23, V14=0, V15=17, V16=6, V17=9, V18=10, V19=54, V20=43, V21=33, V22=44, V23=14, V24=48, V25=11, V26=36, V27=12, V28=15, V29=13, V30=18, V31=21, V32=38, V33=16, V34=34, V35=24, V36=28, V37=30, V38=56, V39=46, V40=37, V41=49, V42=20, V43=55, V44=19, V45=45, V46=22, V47=26, V48=25, V49=31, V50=35, V51=53, V52=32, V53=51, V54=42, V55=47, V56=50, 
16.11/16.22	v 52 40 29 39 8 41 3 27 2 4 1 5 7 23 0 17 6 9 10 54 43 33 44 14 48 11 36 12 15 13 18 21 38 16 34 24 28 30 56 46 37 49 20 55 19 45 22 26 25 31 35 53 32 51 42 47 50 
16.11/16.22	d ASSIGNMENTS 4574

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-2080833-1247718841/watcher-2080833-1247718841 -o /tmp/evaluation-result-2080833-1247718841/solver-2080833-1247718841 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1363590488 HOME/instance-2080833-1247718841.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: 1.99 2.00 2.00 4/81 13482
/proc/meminfo: memFree=1119392/2055920 swapFree=4192812/4192956
[pid=13482] ppid=13480 vsize=18576 CPUtime=0
/proc/13482/stat : 13482 (runsolver) R 13480 13482 12740 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 58947323 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 218076081447 0 0 4096 24578 0 0 0 17 1 0 0
/proc/13482/statm: 4644 284 249 26 0 2626 0

[startup+0.14428 s]
/proc/loadavg: 1.99 2.00 2.00 4/81 13482
/proc/meminfo: memFree=1119392/2055920 swapFree=4192812/4192956
[pid=13482] ppid=13480 vsize=5308 CPUtime=0.12
/proc/13482/stat : 13482 (pcs.big) R 13480 13482 12740 0 -1 4194304 1015 656 0 0 12 0 0 0 18 0 1 0 58947323 5435392 646 996147200 134512640 135215973 4294956304 18446744073709551615 4158960033 0 0 4096 0 0 0 0 17 1 0 0
/proc/13482/statm: 1327 646 408 171 0 252 0
Current children cumulated CPU time (s) 0.12
Current children cumulated vsize (KiB) 5308

[startup+0.201288 s]
/proc/loadavg: 1.99 2.00 2.00 4/81 13482
/proc/meminfo: memFree=1119392/2055920 swapFree=4192812/4192956
[pid=13482] ppid=13480 vsize=5308 CPUtime=0.18
/proc/13482/stat : 13482 (pcs.big) R 13480 13482 12740 0 -1 4194304 1024 656 0 0 18 0 0 0 18 0 1 0 58947323 5435392 655 996147200 134512640 135215973 4294956304 18446744073709551615 134599868 0 0 4096 0 0 0 0 17 1 0 0
/proc/13482/statm: 1327 655 408 171 0 252 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 5308

[startup+0.301303 s]
/proc/loadavg: 1.99 2.00 2.00 4/81 13482
/proc/meminfo: memFree=1119392/2055920 swapFree=4192812/4192956
[pid=13482] ppid=13480 vsize=5700 CPUtime=0.28
/proc/13482/stat : 13482 (pcs.big) R 13480 13482 12740 0 -1 4194304 1103 656 0 0 28 0 0 0 19 0 1 0 58947323 5836800 734 996147200 134512640 135215973 4294956304 18446744073709551615 7829061 0 0 4096 0 0 0 0 17 1 0 0
/proc/13482/statm: 1425 734 408 171 0 350 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5700

[startup+0.70137 s]
/proc/loadavg: 1.99 2.00 2.00 4/81 13482
/proc/meminfo: memFree=1119392/2055920 swapFree=4192812/4192956
[pid=13482] ppid=13480 vsize=6540 CPUtime=0.68
/proc/13482/stat : 13482 (pcs.big) R 13480 13482 12740 0 -1 4194304 1332 656 0 0 68 0 0 0 23 0 1 0 58947323 6696960 963 996147200 134512640 135215973 4294956304 18446744073709551615 7829115 0 0 4096 0 0 0 0 17 1 0 0
/proc/13482/statm: 1635 963 408 171 0 560 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 6540

[startup+1.5015 s]
/proc/loadavg: 1.99 2.00 2.00 3/82 13487
/proc/meminfo: memFree=1116248/2055920 swapFree=4192812/4192956
[pid=13482] ppid=13480 vsize=8236 CPUtime=1.47
/proc/13482/stat : 13482 (pcs.big) R 13480 13482 12740 0 -1 4194304 1745 656 0 0 147 0 0 0 25 0 1 0 58947323 8433664 1376 996147200 134512640 135215973 4294956304 18446744073709551615 134599858 0 0 4096 0 0 0 0 17 1 0 0
/proc/13482/statm: 2059 1376 408 171 0 984 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 8236

[startup+3.10277 s]
/proc/loadavg: 1.99 2.00 2.00 3/82 13487
/proc/meminfo: memFree=1113688/2055920 swapFree=4192812/4192956
[pid=13482] ppid=13480 vsize=12144 CPUtime=3.07
/proc/13482/stat : 13482 (pcs.big) R 13480 13482 12740 0 -1 4194304 2734 656 0 0 306 1 0 0 25 0 1 0 58947323 12435456 2332 996147200 134512640 135215973 4294956304 18446744073709551615 7835393 0 0 4096 0 0 0 0 17 1 0 0
/proc/13482/statm: 3036 2332 408 171 0 1961 0
Current children cumulated CPU time (s) 3.07
Current children cumulated vsize (KiB) 12144

[startup+6.30131 s]
/proc/loadavg: 1.99 2.00 2.00 3/82 13487
/proc/meminfo: memFree=1106712/2055920 swapFree=4192812/4192956
[pid=13482] ppid=13480 vsize=18504 CPUtime=6.26
/proc/13482/stat : 13482 (pcs.big) R 13480 13482 12740 0 -1 4194304 4379 656 0 0 624 2 0 0 25 0 1 0 58947323 18948096 3912 996147200 134512640 135215973 4294956304 18446744073709551615 134590052 0 0 4096 0 0 0 0 17 1 0 0
/proc/13482/statm: 4626 3912 408 171 0 3551 0
Current children cumulated CPU time (s) 6.26
Current children cumulated vsize (KiB) 18504

[startup+12.7014 s]
/proc/loadavg: 1.99 2.00 2.00 3/82 13487
/proc/meminfo: memFree=1090520/2055920 swapFree=4192812/4192956
[pid=13482] ppid=13480 vsize=34616 CPUtime=12.61
/proc/13482/stat : 13482 (pcs.big) R 13480 13482 12740 0 -1 4194304 8528 656 0 0 1258 3 0 0 25 0 1 0 58947323 35446784 7899 996147200 134512640 135215973 4294956304 18446744073709551615 7829115 0 0 4096 0 0 0 0 17 1 0 0
/proc/13482/statm: 8654 7899 408 171 0 7579 0
Current children cumulated CPU time (s) 12.61
Current children cumulated vsize (KiB) 34616

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

[startup+12.8024 s]
/proc/loadavg: 1.99 2.00 2.00 3/82 13487
/proc/meminfo: memFree=1090520/2055920 swapFree=4192812/4192956
[pid=13482] ppid=13480 vsize=34748 CPUtime=12.72
/proc/13482/stat : 13482 (pcs.big) R 13480 13482 12740 0 -1 4194304 8581 656 0 0 1268 4 0 0 25 0 1 0 58947323 35581952 7952 996147200 134512640 135215973 4294956304 18446744073709551615 134532901 0 0 4096 0 0 0 0 17 1 0 0
/proc/13482/statm: 8687 7952 408 171 0 7612 0
Current children cumulated CPU time (s) 12.72
Current children cumulated vsize (KiB) 34748

[startup+14.4057 s]
/proc/loadavg: 1.99 2.00 2.00 3/82 13487
/proc/meminfo: memFree=1085272/2055920 swapFree=4192812/4192956
[pid=13482] ppid=13480 vsize=38272 CPUtime=14.31
/proc/13482/stat : 13482 (pcs.big) R 13480 13482 12740 0 -1 4194304 9482 656 0 0 1427 4 0 0 25 0 1 0 58947323 39190528 8853 996147200 134512640 135215973 4294956304 18446744073709551615 134616477 0 0 4096 0 0 0 0 17 1 0 0
/proc/13482/statm: 9568 8853 408 171 0 8493 0
Current children cumulated CPU time (s) 14.31
Current children cumulated vsize (KiB) 38272

[startup+15.2018 s]
/proc/loadavg: 1.99 2.00 2.00 3/82 13487
/proc/meminfo: memFree=1085272/2055920 swapFree=4192812/4192956
[pid=13482] ppid=13480 vsize=39836 CPUtime=15.11
/proc/13482/stat : 13482 (pcs.big) R 13480 13482 12740 0 -1 4194304 9872 656 0 0 1506 5 0 0 25 0 1 0 58947323 40792064 9243 996147200 134512640 135215973 4294956304 18446744073709551615 134599868 0 0 4096 0 0 0 0 17 1 0 0
/proc/13482/statm: 9959 9243 408 171 0 8884 0
Current children cumulated CPU time (s) 15.11
Current children cumulated vsize (KiB) 39836

[startup+16.0019 s]
/proc/loadavg: 1.99 2.00 2.00 3/82 13487
/proc/meminfo: memFree=1083224/2055920 swapFree=4192812/4192956
[pid=13482] ppid=13480 vsize=42160 CPUtime=15.91
/proc/13482/stat : 13482 (pcs.big) R 13480 13482 12740 0 -1 4194304 10493 656 0 0 1586 5 0 0 25 0 1 0 58947323 43171840 9607 996147200 134512640 135215973 4294956304 18446744073709551615 134583640 0 0 4096 0 0 0 0 17 1 0 0
/proc/13482/statm: 10540 9607 408 171 0 9465 0
Current children cumulated CPU time (s) 15.91
Current children cumulated vsize (KiB) 42160

[startup+16.202 s]
/proc/loadavg: 1.99 2.00 2.00 3/82 13487
/proc/meminfo: memFree=1083224/2055920 swapFree=4192812/4192956
[pid=13482] ppid=13480 vsize=42164 CPUtime=16.11
/proc/13482/stat : 13482 (pcs.big) R 13480 13482 12740 0 -1 4194304 10566 656 0 0 1606 5 0 0 25 0 1 0 58947323 43175936 9631 996147200 134512640 135215973 4294956304 18446744073709551615 134532677 0 0 4096 0 0 0 0 17 1 0 0
/proc/13482/statm: 10541 9631 408 171 0 9466 0
Current children cumulated CPU time (s) 16.11
Current children cumulated vsize (KiB) 42164

Child status: 0
Real time (s): 16.2314
CPU time (s): 16.1505
CPU user time (s): 16.0856
CPU system time (s): 0.06499
CPU usage (%): 99.5018
Max. virtual memory (cumulated for all children) (KiB): 42424

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 16.0856
system time used= 0.06499
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 11225
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= 18
involuntary context switches= 520

runsolver used 0.020996 second user time and 0.046992 second system time

The end

Launcher Data 

Begin job on node57 at 2009-07-16 06:34:01
IDJOB=2080833
IDBENCH=57180
IDSOLVER=733
FILE ID=node57/2080833-1247718841
PBS_JOBID= 9521441
Free space on /tmp= 66356 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/langford3/normalized-langford-3-19.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2080833-1247718841/watcher-2080833-1247718841 -o /tmp/evaluation-result-2080833-1247718841/solver-2080833-1247718841 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1363590488 HOME/instance-2080833-1247718841.xml

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

MD5SUM BENCH= aaae6bd1bcabe60d1f4e8682f4b12268
RANDOM SEED=1363590488

node57.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		: 3000.261
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		: 3000.261
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:       1119808 kB
Buffers:         84020 kB
Cached:         702400 kB
SwapCached:          0 kB
Active:         265508 kB
Inactive:       598388 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1119808 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1912 kB
Writeback:           0 kB
Mapped:          97888 kB
Slab:            57328 kB
Committed_AS:   609112 kB
PageTables:       1968 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= 66356 MiB
End job on node57 at 2009-07-16 06:34:17