Trace number 2070747

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 0.540916 0.552471

DiagnosticValue
ASSIGNMENTS486

General information on the benchmark

Namecsp/primes-20/
normalized-primes-20-20-3-1.xml
MD5SUM9d7c5b819f44e9796c93b064d36b2c7e
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.019996
Satisfiable
(Un)Satisfiability was proved
Number of variables100
Number of constraints20
Maximum constraint arity4
Maximum domain size70
Number of constraints which are defined in extension0
Number of constraints which are defined in intension20
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
0.00/0.01	c Seed is 1746765880
0.00/0.02	c Constructing HOME/instance-2070747-1247709162.xml  with 146 constraints
0.00/0.02	c Solving 486 backtracks 6 restarts
0.48/0.55	s SATISFIABLE
0.48/0.55	c V0=2, V1=13, V2=53, V3=41, V4=71, V5=60, V6=13, V7=2, V8=71, V9=2, V10=2, V11=2, V12=71, V13=22, V14=15, V15=2, V16=71, V17=64, V18=65, V19=71, V20=71, V21=19, V22=19, V23=2, V24=45, V25=2, V26=5, V27=2, V28=69, V29=53, V30=71, V31=33, V32=71, V33=66, V34=2, V35=71, V36=50, V37=71, V38=2, V39=71, V40=2, V41=71, V42=35, V43=54, V44=71, V45=71, V46=2, V47=2, V48=21, V49=70, V50=2, V51=71, V52=26, V53=60, V54=2, V55=71, V56=2, V57=71, V58=71, V59=2, V60=2, V61=48, V62=2, V63=2, V64=2, V65=2, V66=2, V67=57, V68=44, V69=71, V70=2, V71=40, V72=2, V73=45, V74=2, V75=71, V76=38, V77=37, V78=2, V79=27, V80=37, V81=2, V82=67, V83=71, V84=44, V85=71, V86=2, V87=51, V88=2, V89=2, V90=31, V91=71, V92=30, V93=19, V94=2, V95=71, V96=11, V97=2, V98=51, V99=40, 
0.48/0.55	v 2 13 53 41 71 60 13 2 71 2 2 2 71 22 15 2 71 64 65 71 71 19 19 2 45 2 5 2 69 53 71 33 71 66 2 71 50 71 2 71 2 71 35 54 71 71 2 2 21 70 2 71 26 60 2 71 2 71 71 2 2 48 2 2 2 2 2 57 44 71 2 40 2 45 2 71 38 37 2 27 37 2 67 71 44 71 2 51 2 2 31 71 30 19 2 71 11 2 51 40 
0.48/0.55	d ASSIGNMENTS 486

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-2070747-1247709162/watcher-2070747-1247709162 -o /tmp/evaluation-result-2070747-1247709162/solver-2070747-1247709162 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1746765880 HOME/instance-2070747-1247709162.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: 1.98 1.98 2.01 4/72 17205
/proc/meminfo: memFree=1258928/2055920 swapFree=4192812/4192956
[pid=17205] ppid=17203 vsize=5356 CPUtime=0
/proc/17205/stat : 17205 (pcssolve) R 17203 17205 17135 0 -1 4194304 273 0 0 0 0 0 0 0 20 0 1 0 57978831 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 233402067615 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/17205/statm: 1339 241 200 169 0 50 0
[pid=17206] ppid=17205 vsize=5356 CPUtime=0
/proc/17206/stat : 17206 (pcssolve) R 17205 17205 17135 0 -1 4194368 0 0 0 0 0 0 0 0 20 0 1 0 57978832 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 233402067615 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/17206/statm: 1339 241 200 169 0 50 0

[startup+0.10513 s]
/proc/loadavg: 1.98 1.98 2.01 4/72 17205
/proc/meminfo: memFree=1258928/2055920 swapFree=4192812/4192956
[pid=17205] ppid=17203 vsize=4792 CPUtime=0.08
/proc/17205/stat : 17205 (pcs.big) R 17203 17205 17135 0 -1 4194304 905 644 1 0 8 0 0 0 23 0 1 0 57978831 4907008 537 996147200 134512640 135215973 4294956304 18446744073709551615 134591100 0 0 4096 0 0 0 0 17 1 0 0
/proc/17205/statm: 1198 537 415 171 0 123 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4792

[startup+0.20114 s]
/proc/loadavg: 1.98 1.98 2.01 4/72 17205
/proc/meminfo: memFree=1258928/2055920 swapFree=4192812/4192956
[pid=17205] ppid=17203 vsize=4964 CPUtime=0.18
/proc/17205/stat : 17205 (pcs.big) R 17203 17205 17135 0 -1 4194304 934 644 1 0 18 0 0 0 24 0 1 0 57978831 5083136 566 996147200 134512640 135215973 4294956304 18446744073709551615 135094595 0 0 4096 0 0 0 0 17 1 0 0
/proc/17205/statm: 1241 566 415 171 0 166 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 4964

[startup+0.301149 s]
/proc/loadavg: 1.98 1.98 2.01 4/72 17205
/proc/meminfo: memFree=1258928/2055920 swapFree=4192812/4192956
[pid=17205] ppid=17203 vsize=5096 CPUtime=0.28
/proc/17205/stat : 17205 (pcs.big) R 17203 17205 17135 0 -1 4194304 958 644 1 0 28 0 0 0 25 0 1 0 57978831 5218304 590 996147200 134512640 135215973 4294956304 18446744073709551615 134587620 0 0 4096 0 0 0 0 17 1 0 0
/proc/17205/statm: 1274 590 415 171 0 199 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5096

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

[startup+0.401159 s]
/proc/loadavg: 1.98 1.98 2.01 4/72 17205
/proc/meminfo: memFree=1258928/2055920 swapFree=4192812/4192956
[pid=17205] ppid=17203 vsize=5096 CPUtime=0.38
/proc/17205/stat : 17205 (pcs.big) R 17203 17205 17135 0 -1 4194304 969 644 1 0 38 0 0 0 25 0 1 0 57978831 5218304 601 996147200 134512640 135215973 4294956304 18446744073709551615 134587102 0 0 4096 0 0 0 0 17 1 0 0
/proc/17205/statm: 1274 601 415 171 0 199 0
Current children cumulated CPU time (s) 0.38
Current children cumulated vsize (KiB) 5096

[startup+0.501168 s]
/proc/loadavg: 1.98 1.98 2.01 4/72 17205
/proc/meminfo: memFree=1258928/2055920 swapFree=4192812/4192956
[pid=17205] ppid=17203 vsize=5096 CPUtime=0.48
/proc/17205/stat : 17205 (pcs.big) R 17203 17205 17135 0 -1 4194304 977 644 1 0 48 0 0 0 25 0 1 0 57978831 5218304 609 996147200 134512640 135215973 4294956304 18446744073709551615 134590505 0 0 4096 0 0 0 0 17 1 0 0
/proc/17205/statm: 1274 609 415 171 0 199 0
Current children cumulated CPU time (s) 0.48
Current children cumulated vsize (KiB) 5096

Child status: 0
Real time (s): 0.552471
CPU time (s): 0.540916
CPU user time (s): 0.532918
CPU system time (s): 0.007998
CPU usage (%): 97.9085
Max. virtual memory (cumulated for all children) (KiB): 5096

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.532918
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1628
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 21
involuntary context switches= 22

runsolver used 0.004999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node70 at 2009-07-16 03:52:42
IDJOB=2070747
IDBENCH=55392
IDSOLVER=734
FILE ID=node70/2070747-1247709162
PBS_JOBID= 9521334
Free space on /tmp= 66432 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/primes-20/normalized-primes-20-20-3-1.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2070747-1247709162/watcher-2070747-1247709162 -o /tmp/evaluation-result-2070747-1247709162/solver-2070747-1247709162 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1746765880 HOME/instance-2070747-1247709162.xml

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

MD5SUM BENCH= 9d7c5b819f44e9796c93b064d36b2c7e
RANDOM SEED=1746765880

node70.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		: 3000.214
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		: 3000.214
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:       1259408 kB
Buffers:         81236 kB
Cached:         407208 kB
SwapCached:          0 kB
Active:         372156 kB
Inactive:       342996 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1259408 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1768 kB
Writeback:           0 kB
Mapped:         238252 kB
Slab:            66448 kB
Committed_AS:   948612 kB
PageTables:       2136 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= 66432 MiB
End job on node70 at 2009-07-16 03:52:42