Trace number 2074321

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 0.3.2UNSAT 44.0443 44.463

DiagnosticValue
ASSIGNMENTS41374

General information on the benchmark

Namecsp/chessboardColoration/
normalized-cc-15-15-2.xml
MD5SUMd253e49a50bf50fec79c621cae233451
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark4.40033
Satisfiable
(Un)Satisfiability was proved
Number of variables225
Number of constraints11025
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension11025
Global constraints used (with number of constraints)

Solver Data 

0.00/0.03	c small-domain mode
0.00/0.03	c Seed is 686028041
0.00/0.03	c Constructing HOME/instance-2074321-1247712346.xml  with 193725 constraints
1.27/1.30	c Solving 41374 backtracks 17 restarts
43.97/44.46	s UNSATISFIABLE
43.97/44.46	d ASSIGNMENTS 41374

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-2074321-1247712346/watcher-2074321-1247712346 -o /tmp/evaluation-result-2074321-1247712346/solver-2074321-1247712346 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 686028041 HOME/instance-2074321-1247712346.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: 2.08 2.09 2.03 4/81 14490
/proc/meminfo: memFree=1483024/2055920 swapFree=4192812/4192956
[pid=14490] ppid=14488 vsize=18576 CPUtime=0
/proc/14490/stat : 14490 (runsolver) R 14488 14490 13922 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 58301220 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 255236566311 0 0 4096 24578 0 0 0 17 1 0 0
/proc/14490/statm: 4644 284 249 26 0 2626 0

[startup+0.0670881 s]
/proc/loadavg: 2.08 2.09 2.03 4/81 14490
/proc/meminfo: memFree=1483024/2055920 swapFree=4192812/4192956
[pid=14490] ppid=14488 vsize=5348 CPUtime=0.05
/proc/14490/stat : 14490 (pcs.small) R 14488 14490 13922 0 -1 4194304 1055 822 0 0 3 0 1 1 24 0 1 0 58301220 5476352 631 996147200 134512640 135095119 4294956304 18446744073709551615 4158910338 0 0 4096 0 0 0 0 17 1 0 0
/proc/14490/statm: 1337 631 374 142 0 291 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 5348

[startup+0.101093 s]
/proc/loadavg: 2.08 2.09 2.03 4/81 14490
/proc/meminfo: memFree=1483024/2055920 swapFree=4192812/4192956
[pid=14490] ppid=14488 vsize=6244 CPUtime=0.08
/proc/14490/stat : 14490 (pcs.small) R 14488 14490 13922 0 -1 4194304 1344 822 0 0 6 0 1 1 24 0 1 0 58301220 6393856 855 996147200 134512640 135095119 4294956304 18446744073709551615 7918169 0 0 4096 0 0 0 0 17 1 0 0
/proc/14490/statm: 1561 855 374 142 0 515 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 6244

[startup+0.301115 s]
/proc/loadavg: 2.08 2.09 2.03 4/81 14490
/proc/meminfo: memFree=1483024/2055920 swapFree=4192812/4192956
[pid=14490] ppid=14488 vsize=12012 CPUtime=0.29
/proc/14490/stat : 14490 (pcs.small) R 14488 14490 13922 0 -1 4194304 3028 822 0 0 26 1 1 1 25 0 1 0 58301220 12300288 2054 996147200 134512640 135095119 4294956304 18446744073709551615 134706686 0 0 4096 0 0 0 0 17 1 0 0
/proc/14490/statm: 3003 2054 374 142 0 1957 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12012

[startup+0.701159 s]
/proc/loadavg: 2.08 2.09 2.03 4/81 14490
/proc/meminfo: memFree=1483024/2055920 swapFree=4192812/4192956
[pid=14490] ppid=14488 vsize=21540 CPUtime=0.68
/proc/14490/stat : 14490 (pcs.small) R 14488 14490 13922 0 -1 4194304 6214 822 0 0 63 3 1 1 25 0 1 0 58301220 22056960 4409 996147200 134512640 135095119 4294956304 18446744073709551615 7951326 0 0 4096 0 0 0 0 17 1 0 0
/proc/14490/statm: 5385 4409 374 142 0 4339 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 21540

[startup+1.50125 s]
/proc/loadavg: 2.08 2.09 2.03 3/82 14496
/proc/meminfo: memFree=1460168/2055920 swapFree=4192812/4192956
[pid=14490] ppid=14488 vsize=40924 CPUtime=1.48
/proc/14490/stat : 14490 (pcs.small) R 14488 14490 13922 0 -1 4194304 12590 822 0 0 140 6 1 1 25 0 1 0 58301220 41906176 8794 996147200 134512640 135095119 4294956304 18446744073709551615 134638508 0 0 4096 0 0 0 0 17 1 0 0
/proc/14490/statm: 10231 8794 386 142 0 9185 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 40924

[startup+3.10142 s]
/proc/loadavg: 2.07 2.09 2.03 3/82 14496
/proc/meminfo: memFree=1445064/2055920 swapFree=4192812/4192956
[pid=14490] ppid=14488 vsize=44956 CPUtime=3.05
/proc/14490/stat : 14490 (pcs.small) R 14488 14490 13922 0 -1 4194304 63825 822 0 0 279 24 1 1 25 0 1 0 58301220 46034944 9768 996147200 134512640 135095119 4294956304 18446744073709551615 134840824 0 0 4096 0 0 0 0 17 1 0 0
/proc/14490/statm: 11239 9768 387 142 0 10193 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 44956

[startup+6.30176 s]
/proc/loadavg: 2.07 2.09 2.03 3/82 14496
/proc/meminfo: memFree=1444488/2055920 swapFree=4192812/4192956
[pid=14490] ppid=14488 vsize=45716 CPUtime=6.23
/proc/14490/stat : 14490 (pcs.small) R 14488 14490 13922 0 -1 4194304 344358 822 0 0 509 112 1 1 25 0 1 0 58301220 46813184 9906 996147200 134512640 135095119 4294956304 18446744073709551615 134599362 0 0 4096 0 0 0 0 17 1 0 0
/proc/14490/statm: 11429 9906 387 142 0 10383 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 45716

[startup+12.7015 s]
/proc/loadavg: 2.06 2.08 2.03 3/82 14496
/proc/meminfo: memFree=1443272/2055920 swapFree=4192812/4192956
[pid=14490] ppid=14488 vsize=46504 CPUtime=12.57
/proc/14490/stat : 14490 (pcs.small) R 14488 14490 13922 0 -1 4194304 965165 822 0 0 962 293 1 1 25 0 1 0 58301220 47620096 10217 996147200 134512640 135095119 4294956304 18446744073709551615 134599362 0 0 4096 0 0 0 0 17 1 0 0
/proc/14490/statm: 11626 10217 387 142 0 10580 0
Current children cumulated CPU time (s) 12.57
Current children cumulated vsize (KiB) 46504

[startup+25.5018 s]
/proc/loadavg: 2.05 2.08 2.03 3/82 14496
/proc/meminfo: memFree=1441544/2055920 swapFree=4192812/4192956
[pid=14490] ppid=14488 vsize=48184 CPUtime=25.25
/proc/14490/stat : 14490 (pcs.small) R 14488 14490 13922 0 -1 4194304 2061839 822 0 0 1896 627 1 1 25 0 1 0 58301220 49340416 10700 996147200 134512640 135095119 4294956304 18446744073709551615 134599362 0 0 4096 0 0 0 0 17 1 0 0
/proc/14490/statm: 12046 10700 387 142 0 11000 0
Current children cumulated CPU time (s) 25.25
Current children cumulated vsize (KiB) 48184

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

[startup+31.9065 s]
/proc/loadavg: 2.05 2.08 2.03 3/82 14496
/proc/meminfo: memFree=1440456/2055920 swapFree=4192812/4192956
[pid=14490] ppid=14488 vsize=49080 CPUtime=31.59
/proc/14490/stat : 14490 (pcs.small) R 14488 14490 13922 0 -1 4194304 2684844 822 0 0 2342 815 1 1 25 0 1 0 58301220 50257920 10944 996147200 134512640 135095119 4294956304 18446744073709551615 134599362 0 0 4096 0 0 0 0 17 1 0 0
/proc/14490/statm: 12270 10944 387 142 0 11224 0
Current children cumulated CPU time (s) 31.59
Current children cumulated vsize (KiB) 49080

[startup+38.3012 s]
/proc/loadavg: 2.04 2.08 2.03 3/82 14496
/proc/meminfo: memFree=1439496/2055920 swapFree=4192812/4192956
[pid=14490] ppid=14488 vsize=49856 CPUtime=37.93
/proc/14490/stat : 14490 (pcs.small) R 14488 14490 13922 0 -1 4194304 3308939 822 0 0 2790 1001 1 1 25 0 1 0 58301220 51052544 11288 996147200 134512640 135095119 4294956304 18446744073709551615 134599362 0 0 4096 0 0 0 0 17 1 0 0
/proc/14490/statm: 12464 11288 387 142 0 11418 0
Current children cumulated CPU time (s) 37.93
Current children cumulated vsize (KiB) 49856

[startup+41.5025 s]
/proc/loadavg: 2.04 2.08 2.03 3/82 14496
/proc/meminfo: memFree=1438984/2055920 swapFree=4192812/4192956
[pid=14490] ppid=14488 vsize=49868 CPUtime=41.1
/proc/14490/stat : 14490 (pcs.small) R 14488 14490 13922 0 -1 4194304 3613647 822 0 0 3014 1094 1 1 25 0 1 0 58301220 51064832 11328 996147200 134512640 135095119 4294956304 18446744073709551615 134882936 0 0 4096 0 0 0 0 17 1 0 0
/proc/14490/statm: 12467 11328 387 142 0 11421 0
Current children cumulated CPU time (s) 41.1
Current children cumulated vsize (KiB) 49868

[startup+43.1017 s]
/proc/loadavg: 2.04 2.07 2.02 3/82 14496
/proc/meminfo: memFree=1438600/2055920 swapFree=4192812/4192956
[pid=14490] ppid=14488 vsize=50500 CPUtime=42.68
/proc/14490/stat : 14490 (pcs.small) R 14488 14490 13922 0 -1 4194304 3757904 822 0 0 3129 1137 1 1 25 0 1 0 58301220 51712000 11435 996147200 134512640 135095119 4294956304 18446744073709551615 134599362 0 0 4096 0 0 0 0 17 1 0 0
/proc/14490/statm: 12625 11435 387 142 0 11579 0
Current children cumulated CPU time (s) 42.68
Current children cumulated vsize (KiB) 50500

[startup+43.9018 s]
/proc/loadavg: 2.04 2.07 2.02 3/82 14496
/proc/meminfo: memFree=1438408/2055920 swapFree=4192812/4192956
[pid=14490] ppid=14488 vsize=50256 CPUtime=43.48
/proc/14490/stat : 14490 (pcs.small) R 14488 14490 13922 0 -1 4194304 3833783 822 0 0 3186 1160 1 1 25 0 1 0 58301220 51462144 11426 996147200 134512640 135095119 4294956304 18446744073709551615 134615460 0 0 4096 0 0 0 0 17 1 0 0
/proc/14490/statm: 12564 11426 387 142 0 11518 0
Current children cumulated CPU time (s) 43.48
Current children cumulated vsize (KiB) 50256

[startup+44.3018 s]
/proc/loadavg: 2.04 2.07 2.02 3/82 14496
/proc/meminfo: memFree=1438408/2055920 swapFree=4192812/4192956
[pid=14490] ppid=14488 vsize=50256 CPUtime=43.87
/proc/14490/stat : 14490 (pcs.small) R 14488 14490 13922 0 -1 4194304 3863091 822 0 0 3216 1169 1 1 25 0 1 0 58301220 51462144 11439 996147200 134512640 135095119 4294956304 18446744073709551615 7917052 0 0 4096 0 0 0 0 17 1 0 0
/proc/14490/statm: 12564 11439 387 142 0 11518 0
Current children cumulated CPU time (s) 43.87
Current children cumulated vsize (KiB) 50256

[startup+44.4019 s]
/proc/loadavg: 2.04 2.07 2.02 3/82 14496
/proc/meminfo: memFree=1438408/2055920 swapFree=4192812/4192956
[pid=14490] ppid=14488 vsize=42060 CPUtime=43.97
/proc/14490/stat : 14490 (pcs.small) R 14488 14490 13922 0 -1 4194304 3863091 822 0 0 3226 1169 1 1 25 0 1 0 58301220 43069440 9602 996147200 134512640 135095119 4294956304 18446744073709551615 7913624 0 0 4096 0 0 0 0 17 1 0 0
/proc/14490/statm: 10515 9602 387 142 0 9469 0
Current children cumulated CPU time (s) 43.97
Current children cumulated vsize (KiB) 42060

Child status: 0
Real time (s): 44.463
CPU time (s): 44.0443
CPU user time (s): 32.3311
CPU system time (s): 11.7132
CPU usage (%): 99.0583
Max. virtual memory (cumulated for all children) (KiB): 50500

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 32.3311
system time used= 11.7132
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3863915
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= 1855

runsolver used 0.06099 second user time and 0.148977 second system time

The end

Launcher Data 

Begin job on node19 at 2009-07-16 04:45:46
IDJOB=2074321
IDBENCH=56088
IDSOLVER=733
FILE ID=node19/2074321-1247712346
PBS_JOBID= 9521411
Free space on /tmp= 66392 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/chessboardColoration/normalized-cc-15-15-2.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2074321-1247712346/watcher-2074321-1247712346 -o /tmp/evaluation-result-2074321-1247712346/solver-2074321-1247712346 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 686028041 HOME/instance-2074321-1247712346.xml

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

MD5SUM BENCH= d253e49a50bf50fec79c621cae233451
RANDOM SEED=686028041

node19.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		: 3000.211
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		: 3000.211
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:       1483504 kB
Buffers:         61684 kB
Cached:         399628 kB
SwapCached:          0 kB
Active:          84620 kB
Inactive:       419496 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1483504 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3604 kB
Writeback:           0 kB
Mapped:          63256 kB
Slab:            53264 kB
Committed_AS:   625120 kB
PageTables:       1980 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= 66388 MiB
End job on node19 at 2009-07-16 04:46:30