Trace number 2084552

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 0.3.2? 64.7941 65.3178

DiagnosticValue
ASSIGNMENTS1000000

General information on the benchmark

Namecsp/graphColoring/
myciel/normalized-myciel6-5.xml
MD5SUM847ad0b91d45ff24c9b9b595db8ec3bf
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark37.9172
Satisfiable
(Un)Satisfiability was proved
Number of variables95
Number of constraints755
Maximum constraint arity2
Maximum domain size5
Number of constraints which are defined in extension0
Number of constraints which are defined in intension755
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.18/0.20	c Seed is 2033291215
0.18/0.20	c Constructing HOME/instance-2084552-1247724829.xml  with 755 constraints
0.18/0.20	c Solving 1000001 backtracks 25 restarts
64.76/65.31	s UNKNOWN
64.76/65.31	c Too many backtracks
64.76/65.31	d ASSIGNMENTS 1000001

Verifier Data 

ERROR: Unexpected answer ! ('s SATISFIABLE'/'s UNSATISFIABLE' expected)
Got answer: UNKNOWN

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2084552-1247724829/watcher-2084552-1247724829 -o /tmp/evaluation-result-2084552-1247724829/solver-2084552-1247724829 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 2033291215 HOME/instance-2084552-1247724829.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: 1.95 2.00 2.00 4/72 13216
/proc/meminfo: memFree=1355592/2055920 swapFree=4192812/4192956
[pid=13216] ppid=13214 vsize=5356 CPUtime=0
/proc/13216/stat : 13216 (pcssolve) R 13214 13216 13179 0 -1 4194304 271 0 0 0 0 0 0 0 20 0 1 0 59546907 5484544 239 996147200 4194304 4889804 548682068800 18446744073709551615 4445799 0 0 4100 65536 0 0 0 17 1 0 0
/proc/13216/statm: 1339 239 199 169 0 50 0

[startup+0.014794 s]
/proc/loadavg: 1.95 2.00 2.00 4/72 13216
/proc/meminfo: memFree=1355592/2055920 swapFree=4192812/4192956
[pid=13216] ppid=13214 vsize=5356 CPUtime=0
/proc/13216/stat : 13216 (pcssolve) S 13214 13216 13179 0 -1 4194304 339 472 0 0 0 0 0 0 23 0 1 0 59546907 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 272836911940 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/13216/statm: 1339 242 201 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.101799 s]
/proc/loadavg: 1.95 2.00 2.00 4/72 13216
/proc/meminfo: memFree=1355592/2055920 swapFree=4192812/4192956
[pid=13216] ppid=13214 vsize=4660 CPUtime=0.08
/proc/13216/stat : 13216 (pcs.small) R 13214 13216 13179 0 -1 4194304 908 819 0 0 8 0 0 0 18 0 1 0 59546907 4771840 517 996147200 134512640 135095119 4294956304 18446744073709551615 134578921 0 0 4096 0 0 0 0 17 1 0 0
/proc/13216/statm: 1165 517 385 142 0 119 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4660

[startup+0.301813 s]
/proc/loadavg: 1.95 2.00 2.00 4/72 13216
/proc/meminfo: memFree=1355592/2055920 swapFree=4192812/4192956
[pid=13216] ppid=13214 vsize=5960 CPUtime=0.28
/proc/13216/stat : 13216 (pcs.small) R 13214 13216 13179 0 -1 4194304 1288 819 0 0 28 0 0 0 19 0 1 0 59546907 6103040 766 996147200 134512640 135095119 4294956304 18446744073709551615 134588465 0 0 4096 0 0 0 0 17 1 0 0
/proc/13216/statm: 1490 766 385 142 0 444 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5960

[startup+0.701838 s]
/proc/loadavg: 1.95 2.00 2.00 4/72 13216
/proc/meminfo: memFree=1355592/2055920 swapFree=4192812/4192956
[pid=13216] ppid=13214 vsize=8028 CPUtime=0.67
/proc/13216/stat : 13216 (pcs.small) R 13214 13216 13179 0 -1 4194304 1948 819 0 0 67 0 0 0 23 0 1 0 59546907 8220672 1232 996147200 134512640 135095119 4294956304 18446744073709551615 134589504 0 0 4096 0 0 0 0 17 1 0 0
/proc/13216/statm: 2007 1232 385 142 0 961 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 8028

[startup+1.50289 s]
/proc/loadavg: 2.03 2.01 2.00 3/73 13222
/proc/meminfo: memFree=1349888/2055920 swapFree=4192812/4192956
[pid=13216] ppid=13214 vsize=11904 CPUtime=1.46
/proc/13216/stat : 13216 (pcs.small) R 13214 13216 13179 0 -1 4194304 3253 819 0 0 146 0 0 0 25 0 1 0 59546907 12189696 2151 996147200 134512640 135095119 4294956304 18446744073709551615 134837921 0 0 4096 0 0 0 0 17 1 0 0
/proc/13216/statm: 2976 2151 385 142 0 1930 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 11904

[startup+3.102 s]
/proc/loadavg: 2.03 2.01 2.00 3/73 13222
/proc/meminfo: memFree=1344576/2055920 swapFree=4192812/4192956
[pid=13216] ppid=13214 vsize=19536 CPUtime=3.04
/proc/13216/stat : 13216 (pcs.small) R 13214 13216 13179 0 -1 4194304 5796 819 0 0 303 1 0 0 25 0 1 0 59546907 20004864 3924 996147200 134512640 135095119 4294956304 18446744073709551615 134617027 0 0 4096 0 0 0 0 17 1 0 0
/proc/13216/statm: 4884 3924 385 142 0 3838 0
Current children cumulated CPU time (s) 3.04
Current children cumulated vsize (KiB) 19536

[startup+6.30122 s]
/proc/loadavg: 2.03 2.01 2.00 3/73 13222
/proc/meminfo: memFree=1330816/2055920 swapFree=4192812/4192956
[pid=13216] ppid=13214 vsize=34784 CPUtime=6.22
/proc/13216/stat : 13216 (pcs.small) R 13214 13216 13179 0 -1 4194304 10825 819 0 0 618 4 0 0 25 0 1 0 59546907 35618816 7415 996147200 134512640 135095119 4294956304 18446744073709551615 134617317 0 0 4096 0 0 0 0 17 1 0 0
/proc/13216/statm: 8696 7415 385 142 0 7650 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 34784

[startup+12.7016 s]
/proc/loadavg: 2.03 2.01 2.00 3/73 13222
/proc/meminfo: memFree=1301504/2055920 swapFree=4192812/4192956
[pid=13216] ppid=13214 vsize=64624 CPUtime=12.56
/proc/13216/stat : 13216 (pcs.small) R 13214 13216 13179 0 -1 4194304 20694 819 0 0 1248 8 0 0 25 0 1 0 59546907 66174976 14210 996147200 134512640 135095119 4294956304 18446744073709551615 134582873 0 0 4096 0 0 0 0 17 1 0 0
/proc/13216/statm: 16156 14210 385 142 0 15110 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 64624

[startup+25.5015 s]
/proc/loadavg: 2.02 2.01 2.00 3/73 13222
/proc/meminfo: memFree=1245440/2055920 swapFree=4192812/4192956
[pid=13216] ppid=13214 vsize=122932 CPUtime=25.27
/proc/13216/stat : 13216 (pcs.small) R 13214 13216 13179 0 -1 4194304 39863 819 0 0 2510 17 0 0 25 0 1 0 59546907 125882368 27233 996147200 134512640 135095119 4294956304 18446744073709551615 134617027 0 0 4096 0 0 0 0 17 1 0 0
/proc/13216/statm: 30733 27233 385 142 0 29687 0
Current children cumulated CPU time (s) 25.27
Current children cumulated vsize (KiB) 122932

[startup+51.1012 s]
/proc/loadavg: 2.01 2.01 2.00 3/73 13222
/proc/meminfo: memFree=1145920/2055920 swapFree=4192812/4192956
[pid=13216] ppid=13214 vsize=235468 CPUtime=50.67
/proc/13216/stat : 13216 (pcs.small) R 13214 13216 13179 0 -1 4194304 76649 819 0 0 5032 35 0 0 25 0 1 0 59546907 241119232 51729 996147200 134512640 135095119 4294956304 18446744073709551615 134838329 0 0 4096 0 0 0 0 17 1 0 0
/proc/13216/statm: 58867 51729 385 142 0 57821 0
Current children cumulated CPU time (s) 50.67
Current children cumulated vsize (KiB) 235468

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

[startup+57.5017 s]
/proc/loadavg: 2.01 2.01 2.00 3/73 13222
/proc/meminfo: memFree=1121536/2055920 swapFree=4192812/4192956
[pid=13216] ppid=13214 vsize=250520 CPUtime=57.02
/proc/13216/stat : 13216 (pcs.small) R 13214 13216 13179 0 -1 4194304 82544 819 0 0 5665 37 0 0 25 0 1 0 59546907 256532480 57624 996147200 134512640 135095119 4294956304 18446744073709551615 134589562 0 0 4096 0 0 0 0 17 1 0 0
/proc/13216/statm: 62630 57624 385 142 0 61584 0
Current children cumulated CPU time (s) 57.02
Current children cumulated vsize (KiB) 250520

[startup+60.7019 s]
/proc/loadavg: 2.01 2.01 2.00 3/73 13222
/proc/meminfo: memFree=1109056/2055920 swapFree=4192812/4192956
[pid=13216] ppid=13214 vsize=257992 CPUtime=60.19
/proc/13216/stat : 13216 (pcs.small) R 13214 13216 13179 0 -1 4194304 85472 819 0 0 5981 38 0 0 25 0 1 0 59546907 264183808 60552 996147200 134512640 135095119 4294956304 18446744073709551615 134840469 0 0 4096 0 0 0 0 17 1 0 0
/proc/13216/statm: 64498 60552 385 142 0 63452 0
Current children cumulated CPU time (s) 60.19
Current children cumulated vsize (KiB) 257992

[startup+63.9011 s]
/proc/loadavg: 2.01 2.01 2.00 3/73 13222
/proc/meminfo: memFree=1097088/2055920 swapFree=4192812/4192956
[pid=13216] ppid=13214 vsize=265328 CPUtime=63.37
/proc/13216/stat : 13216 (pcs.small) R 13214 13216 13179 0 -1 4194304 88356 819 0 0 6297 40 0 0 25 0 1 0 59546907 271695872 63436 996147200 134512640 135095119 4294956304 18446744073709551615 134632486 0 0 4096 0 0 0 0 17 1 0 0
/proc/13216/statm: 66332 63436 385 142 0 65286 0
Current children cumulated CPU time (s) 63.37
Current children cumulated vsize (KiB) 265328

[startup+64.7011 s]
/proc/loadavg: 2.01 2.01 2.00 3/73 13222
/proc/meminfo: memFree=1097088/2055920 swapFree=4192812/4192956
[pid=13216] ppid=13214 vsize=233584 CPUtime=64.17
/proc/13216/stat : 13216 (pcs.small) R 13214 13216 13179 0 -1 4194304 88725 819 0 0 6376 41 0 0 25 0 1 0 59546907 239190016 55986 996147200 134512640 135095119 4294956304 18446744073709551615 12649986 0 0 4096 0 0 0 0 17 1 0 0
/proc/13216/statm: 58396 55986 385 142 0 57350 0
Current children cumulated CPU time (s) 64.17
Current children cumulated vsize (KiB) 233584

[startup+65.1012 s]
/proc/loadavg: 2.01 2.01 2.00 3/73 13222
/proc/meminfo: memFree=1184512/2055920 swapFree=4192812/4192956
[pid=13216] ppid=13214 vsize=168044 CPUtime=64.56
/proc/13216/stat : 13216 (pcs.small) R 13214 13216 13179 0 -1 4194304 88725 819 0 0 6414 42 0 0 25 0 1 0 59546907 172077056 41341 996147200 134512640 135095119 4294956304 18446744073709551615 12648600 0 0 4096 0 0 0 0 17 1 0 0
/proc/13216/statm: 42011 41341 385 142 0 40965 0
Current children cumulated CPU time (s) 64.56
Current children cumulated vsize (KiB) 168044

[startup+65.3015 s]
/proc/loadavg: 2.01 2.01 2.00 3/73 13222
/proc/meminfo: memFree=1184512/2055920 swapFree=4192812/4192956
[pid=13216] ppid=13214 vsize=168044 CPUtime=64.76
/proc/13216/stat : 13216 (pcs.small) R 13214 13216 13179 0 -1 4194304 88725 819 0 0 6433 43 0 0 25 0 1 0 59546907 172077056 22909 996147200 134512640 135095119 4294956304 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/13216/statm: 42011 22909 385 142 0 40965 0
Current children cumulated CPU time (s) 64.76
Current children cumulated vsize (KiB) 168044

Child status: 0
Real time (s): 65.3178
CPU time (s): 64.7941
CPU user time (s): 64.3372
CPU system time (s): 0.45693
CPU usage (%): 99.1983
Max. virtual memory (cumulated for all children) (KiB): 266356

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 64.3372
system time used= 0.45693
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 89546
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= 22
involuntary context switches= 1426

runsolver used 0.065989 second user time and 0.19497 second system time

The end

Launcher Data 

Begin job on node39 at 2009-07-16 08:13:49
IDJOB=2084552
IDBENCH=58090
IDSOLVER=734
FILE ID=node39/2084552-1247724829
PBS_JOBID= 9521542
Free space on /tmp= 66360 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/graphColoring/myciel/normalized-myciel6-5.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2084552-1247724829/watcher-2084552-1247724829 -o /tmp/evaluation-result-2084552-1247724829/solver-2084552-1247724829 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 2033291215 HOME/instance-2084552-1247724829.xml

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

MD5SUM BENCH= 847ad0b91d45ff24c9b9b595db8ec3bf
RANDOM SEED=2033291215

node39.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		: 3000.236
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		: 3000.236
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:       1356072 kB
Buffers:         87988 kB
Cached:         419292 kB
SwapCached:          0 kB
Active:         297728 kB
Inactive:       318040 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1356072 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1872 kB
Writeback:           0 kB
Mapped:         120072 kB
Slab:            69492 kB
Committed_AS:   640736 kB
PageTables:       1908 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= 66360 MiB
End job on node39 at 2009-07-16 08:14:54