Trace number 2058768

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 0.3.2UNSAT 134.714 135.912

DiagnosticValue
ASSIGNMENTS23110

General information on the benchmark

Namecsp/langford/
normalized-langford-3-11-ext.xml
MD5SUMaa3180c3777a7d99fa781939f9a51590
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.69574
Satisfiable
(Un)Satisfiability was proved
Number of variables33
Number of constraints550
Maximum constraint arity2
Maximum domain size33
Number of constraints which are defined in extension550
Number of constraints which are defined in intension0
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
0.18/0.22	c Seed is 1490578598
0.18/0.22	c Constructing HOME/instance-2058768-1247694319.xml  with 17446 constraints
0.18/0.22	c Solving 23110 backtracks 16 restarts
134.69/135.90	s UNSATISFIABLE
134.69/135.90	d ASSIGNMENTS 23110

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2058768-1247694319/watcher-2058768-1247694319 -o /tmp/evaluation-result-2058768-1247694319/solver-2058768-1247694319 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1490578598 HOME/instance-2058768-1247694319.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: 1.59 0.55 0.19 4/72 10359
/proc/meminfo: memFree=1168824/2055920 swapFree=4192812/4192956
[pid=10359] ppid=10357 vsize=18576 CPUtime=0
/proc/10359/stat : 10359 (runsolver) R 10357 10359 10244 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 56498812 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 231962373415 0 0 4096 24578 0 0 0 17 1 0 0
/proc/10359/statm: 4644 284 249 26 0 2626 0

[startup+0.071954 s]
/proc/loadavg: 1.59 0.55 0.19 4/72 10359
/proc/meminfo: memFree=1168824/2055920 swapFree=4192812/4192956
[pid=10359] ppid=10357 vsize=10572 CPUtime=0.05
/proc/10359/stat : 10359 (pcs.big) R 10357 10359 10244 0 -1 4194304 2291 654 0 0 4 1 0 0 18 0 1 0 56498812 10825728 1824 996147200 134512640 135215973 4294956304 18446744073709551615 7638524 0 0 4096 0 0 0 0 17 1 0 0
/proc/10359/statm: 2643 1824 386 171 0 1568 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 10572

[startup+0.101942 s]
/proc/loadavg: 1.59 0.55 0.19 4/72 10359
/proc/meminfo: memFree=1168824/2055920 swapFree=4192812/4192956
[pid=10359] ppid=10357 vsize=10320 CPUtime=0.08
/proc/10359/stat : 10359 (pcs.big) R 10357 10359 10244 0 -1 4194304 2355 654 0 0 7 1 0 0 18 0 1 0 56498812 10567680 1759 996147200 134512640 135215973 4294956304 18446744073709551615 134583202 0 0 4096 0 0 0 0 17 1 0 0
/proc/10359/statm: 2580 1759 400 171 0 1505 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 10320

[startup+0.301887 s]
/proc/loadavg: 1.59 0.55 0.19 4/72 10359
/proc/meminfo: memFree=1168824/2055920 swapFree=4192812/4192956
[pid=10359] ppid=10357 vsize=10584 CPUtime=0.28
/proc/10359/stat : 10359 (pcs.big) R 10357 10359 10244 0 -1 4194304 2430 654 0 0 27 1 0 0 19 0 1 0 56498812 10838016 1834 996147200 134512640 135215973 4294956304 18446744073709551615 4158960029 0 0 4096 0 0 0 0 17 1 0 0
/proc/10359/statm: 2646 1834 402 171 0 1571 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 10584

[startup+0.701769 s]
/proc/loadavg: 1.59 0.55 0.19 4/72 10359
/proc/meminfo: memFree=1168824/2055920 swapFree=4192812/4192956
[pid=10359] ppid=10357 vsize=10716 CPUtime=0.68
/proc/10359/stat : 10359 (pcs.big) R 10357 10359 10244 0 -1 4194304 2469 654 0 0 67 1 0 0 23 0 1 0 56498812 10973184 1873 996147200 134512640 135215973 4294956304 18446744073709551615 134583202 0 0 4096 0 0 0 0 17 1 0 0
/proc/10359/statm: 2679 1873 402 171 0 1604 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 10716

[startup+1.50154 s]
/proc/loadavg: 1.59 0.55 0.19 3/73 10364
/proc/meminfo: memFree=1162544/2055920 swapFree=4192812/4192956
[pid=10359] ppid=10357 vsize=11112 CPUtime=1.47
/proc/10359/stat : 10359 (pcs.big) R 10357 10359 10244 0 -1 4194304 2564 654 0 0 146 1 0 0 25 0 1 0 56498812 11378688 1968 996147200 134512640 135215973 4294956304 18446744073709551615 134599868 0 0 4096 0 0 0 0 17 1 0 0
/proc/10359/statm: 2778 1968 402 171 0 1703 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 11112

[startup+3.10208 s]
/proc/loadavg: 1.59 0.55 0.19 3/73 10364
/proc/meminfo: memFree=1161776/2055920 swapFree=4192812/4192956
[pid=10359] ppid=10357 vsize=11900 CPUtime=3.06
/proc/10359/stat : 10359 (pcs.big) R 10357 10359 10244 0 -1 4194304 2745 654 0 0 305 1 0 0 25 0 1 0 56498812 12185600 2149 996147200 134512640 135215973 4294956304 18446744073709551615 4158960177 0 0 4096 0 0 0 0 17 1 0 0
/proc/10359/statm: 2975 2149 402 171 0 1900 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 11900

[startup+6.30116 s]
/proc/loadavg: 1.62 0.58 0.20 3/73 10364
/proc/meminfo: memFree=1159920/2055920 swapFree=4192812/4192956
[pid=10359] ppid=10357 vsize=13212 CPUtime=6.23
/proc/10359/stat : 10359 (pcs.big) R 10357 10359 10244 0 -1 4194304 3129 654 0 0 622 1 0 0 25 0 1 0 56498812 13529088 2500 996147200 134512640 135215973 4294956304 18446744073709551615 134583202 0 0 4096 0 0 0 0 17 1 0 0
/proc/10359/statm: 3303 2500 402 171 0 2228 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 13212

[startup+12.7023 s]
/proc/loadavg: 1.65 0.60 0.21 3/73 10364
/proc/meminfo: memFree=1156016/2055920 swapFree=4192812/4192956
[pid=10359] ppid=10357 vsize=16236 CPUtime=12.58
/proc/10359/stat : 10359 (pcs.big) R 10357 10359 10244 0 -1 4194304 3947 654 0 0 1255 3 0 0 25 0 1 0 56498812 16625664 3253 996147200 134512640 135215973 4294956304 18446744073709551615 134532946 0 0 4096 0 0 0 0 17 1 0 0
/proc/10359/statm: 4059 3253 402 171 0 2984 0
Current children cumulated CPU time (s) 12.58
Current children cumulated vsize (KiB) 16236

[startup+25.5016 s]
/proc/loadavg: 1.73 0.67 0.24 3/73 10364
/proc/meminfo: memFree=1149424/2055920 swapFree=4192812/4192956
[pid=10359] ppid=10357 vsize=21632 CPUtime=25.26
/proc/10359/stat : 10359 (pcs.big) R 10357 10359 10244 0 -1 4194304 5409 654 0 0 2521 5 0 0 25 0 1 0 56498812 22151168 4586 996147200 134512640 135215973 4294956304 18446744073709551615 134591029 0 0 4096 0 0 0 0 17 1 0 0
/proc/10359/statm: 5408 4586 402 171 0 4333 0
Current children cumulated CPU time (s) 25.26
Current children cumulated vsize (KiB) 21632

[startup+51.1012 s]
/proc/loadavg: 1.82 0.77 0.29 3/73 10364
/proc/meminfo: memFree=1136560/2055920 swapFree=4192812/4192956
[pid=10359] ppid=10357 vsize=30824 CPUtime=50.63
/proc/10359/stat : 10359 (pcs.big) R 10357 10359 10244 0 -1 4194304 7923 654 0 0 5056 7 0 0 25 0 1 0 56498812 31563776 6843 996147200 134512640 135215973 4294956304 18446744073709551615 134591044 0 0 4096 0 0 0 0 17 1 0 0
/proc/10359/statm: 7706 6843 402 171 0 6631 0
Current children cumulated CPU time (s) 50.63
Current children cumulated vsize (KiB) 30824

[startup+102.306 s]
/proc/loadavg: 2.07 0.99 0.38 3/73 10364
/proc/meminfo: memFree=1118384/2055920 swapFree=4192812/4192956
[pid=10359] ppid=10357 vsize=48260 CPUtime=101.39
/proc/10359/stat : 10359 (pcs.big) R 10357 10359 10244 0 -1 4194304 12640 654 0 0 10128 11 0 0 25 0 1 0 56498812 49418240 10757 996147200 134512640 135215973 4294956304 18446744073709551615 134583423 0 0 4096 0 0 0 0 17 1 0 0
/proc/10359/statm: 12065 10757 402 171 0 10990 0
Current children cumulated CPU time (s) 101.39
Current children cumulated vsize (KiB) 48260

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

[startup+115.103 s]
/proc/loadavg: 2.06 1.04 0.41 3/73 10364
/proc/meminfo: memFree=1114544/2055920 swapFree=4192812/4192956
[pid=10359] ppid=10357 vsize=51164 CPUtime=114.07
/proc/10359/stat : 10359 (pcs.big) R 10357 10359 10244 0 -1 4194304 13444 654 0 0 11396 11 0 0 25 0 1 0 56498812 52391936 11561 996147200 134512640 135215973 4294956304 18446744073709551615 134590055 0 0 4096 0 0 0 0 17 1 0 0
/proc/10359/statm: 12791 11561 402 171 0 11716 0
Current children cumulated CPU time (s) 114.07
Current children cumulated vsize (KiB) 51164

[startup+127.901 s]
/proc/loadavg: 2.05 1.07 0.43 3/73 10364
/proc/meminfo: memFree=1110384/2055920 swapFree=4192812/4192956
[pid=10359] ppid=10357 vsize=54060 CPUtime=126.75
/proc/10359/stat : 10359 (pcs.big) R 10357 10359 10244 0 -1 4194304 14210 654 0 0 12663 12 0 0 25 0 1 0 56498812 55357440 12327 996147200 134512640 135215973 4294956304 18446744073709551615 134682209 0 0 4096 0 0 0 0 17 1 0 0
/proc/10359/statm: 13515 12327 402 171 0 12440 0
Current children cumulated CPU time (s) 126.75
Current children cumulated vsize (KiB) 54060

[startup+131.101 s]
/proc/loadavg: 2.04 1.09 0.43 3/73 10364
/proc/meminfo: memFree=1109360/2055920 swapFree=4192812/4192956
[pid=10359] ppid=10357 vsize=54588 CPUtime=129.92
/proc/10359/stat : 10359 (pcs.big) R 10357 10359 10244 0 -1 4194304 14384 654 0 0 12980 12 0 0 25 0 1 0 56498812 55898112 12501 996147200 134512640 135215973 4294956304 18446744073709551615 4158960221 0 0 4096 0 0 0 0 17 1 0 0
/proc/10359/statm: 13647 12501 402 171 0 12572 0
Current children cumulated CPU time (s) 129.92
Current children cumulated vsize (KiB) 54588

[startup+134.301 s]
/proc/loadavg: 2.04 1.10 0.44 3/73 10364
/proc/meminfo: memFree=1108464/2055920 swapFree=4192812/4192956
[pid=10359] ppid=10357 vsize=55248 CPUtime=133.1
/proc/10359/stat : 10359 (pcs.big) R 10357 10359 10244 0 -1 4194304 14566 654 0 0 13297 13 0 0 25 0 1 0 56498812 56573952 12683 996147200 134512640 135215973 4294956304 18446744073709551615 134590083 0 0 4096 0 0 0 0 17 1 0 0
/proc/10359/statm: 13812 12683 402 171 0 12737 0
Current children cumulated CPU time (s) 133.1
Current children cumulated vsize (KiB) 55248

[startup+135.101 s]
/proc/loadavg: 2.04 1.10 0.44 3/73 10364
/proc/meminfo: memFree=1108464/2055920 swapFree=4192812/4192956
[pid=10359] ppid=10357 vsize=55512 CPUtime=133.9
/proc/10359/stat : 10359 (pcs.big) R 10357 10359 10244 0 -1 4194304 14612 654 0 0 13377 13 0 0 25 0 1 0 56498812 56844288 12729 996147200 134512640 135215973 4294956304 18446744073709551615 4158853402 0 0 4096 0 0 0 0 17 1 0 0
/proc/10359/statm: 13878 12729 402 171 0 12803 0
Current children cumulated CPU time (s) 133.9
Current children cumulated vsize (KiB) 55512

[startup+135.502 s]
/proc/loadavg: 2.04 1.10 0.44 3/73 10364
/proc/meminfo: memFree=1108144/2055920 swapFree=4192812/4192956
[pid=10359] ppid=10357 vsize=55512 CPUtime=134.29
/proc/10359/stat : 10359 (pcs.big) R 10357 10359 10244 0 -1 4194304 14631 654 0 0 13416 13 0 0 25 0 1 0 56498812 56844288 12748 996147200 134512640 135215973 4294956304 18446744073709551615 134597394 0 0 4096 0 0 0 0 17 1 0 0
/proc/10359/statm: 13878 12748 402 171 0 12803 0
Current children cumulated CPU time (s) 134.29
Current children cumulated vsize (KiB) 55512

[startup+135.902 s]
/proc/loadavg: 2.04 1.10 0.44 3/73 10364
/proc/meminfo: memFree=1108144/2055920 swapFree=4192812/4192956
[pid=10359] ppid=10357 vsize=53592 CPUtime=134.69
/proc/10359/stat : 10359 (pcs.big) R 10357 10359 10244 0 -1 4194304 14650 654 0 0 13456 13 0 0 25 0 1 0 56498812 54878208 12450 996147200 134512640 135215973 4294956304 18446744073709551615 7635033 0 0 4096 0 0 0 0 17 1 0 0
/proc/10359/statm: 13398 12450 402 171 0 12323 0
Current children cumulated CPU time (s) 134.69
Current children cumulated vsize (KiB) 53592

Child status: 0
Real time (s): 135.912
CPU time (s): 134.714
CPU user time (s): 134.569
CPU system time (s): 0.144977
CPU usage (%): 99.1184
Max. virtual memory (cumulated for all children) (KiB): 55644

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 134.569
system time used= 0.144977
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15307
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= 2932

runsolver used 0.231964 second user time and 0.378942 second system time

The end

Launcher Data 

Begin job on node16 at 2009-07-15 23:45:20
IDJOB=2058768
IDBENCH=53521
IDSOLVER=734
FILE ID=node16/2058768-1247694319
PBS_JOBID= 9521277
Free space on /tmp= 66416 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/langford/normalized-langford-3-11-ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2058768-1247694319/watcher-2058768-1247694319 -o /tmp/evaluation-result-2058768-1247694319/solver-2058768-1247694319 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1490578598 HOME/instance-2058768-1247694319.xml

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

MD5SUM BENCH= aa3180c3777a7d99fa781939f9a51590
RANDOM SEED=1490578598

node16.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		: 3000.231
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		: 3000.231
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:       1169304 kB
Buffers:         72796 kB
Cached:         714236 kB
SwapCached:          0 kB
Active:         190016 kB
Inactive:       626392 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1169304 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1760 kB
Writeback:           0 kB
Mapped:          40828 kB
Slab:            55712 kB
Committed_AS:   503544 kB
PageTables:       1824 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= 66412 MiB
End job on node16 at 2009-07-15 23:47:36