Trace number 1084992

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
MDG-noprobe 2008-06-27SAT 3.9454 3.96641

DiagnosticValue
ASSIGNMENTS5993
CHECKS290030

General information on the benchmark

Namecsp/rand-8-20-5/
normalized-rand-8-20-5-18-800-0_ext.xml
MD5SUMa42b1fcf5ad10b80deb15852b7f7abc6
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark3.39448
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints18
Maximum constraint arity8
Maximum domain size5
Number of constraints which are defined in extension18
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.00	c mistral-prime version 1.313
3.77/3.88	s SATISFIABLE
3.77/3.88	v 2 0 0 3 3 1 3 0 2 4 3 1 4 0 0 3 0 0 0 2
3.77/3.88	d CHECKS 290030
3.77/3.88	d ASSIGNMENTS 5993

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1084992-1215232481/watcher-1084992-1215232481 -o /tmp/evaluation-result-1084992-1215232481/solver-1084992-1215232481 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1084992-1215232481.xml -heu dom/wdeg -res no 

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): 2200 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.12 2.06 2.02 4/82 8170
/proc/meminfo: memFree=795616/2055920 swapFree=4176360/4192956
[pid=8170] ppid=8168 vsize=4896 CPUtime=0
/proc/8170/stat : 8170 (xsolve) R 8168 8170 8133 0 -1 4194304 438 0 0 0 0 0 0 0 18 0 1 0 2002215363 5013504 404 996147200 134512640 135239859 4294956208 18446744073709551615 12065870 0 0 4096 0 0 0 0 17 1 0 0
/proc/8170/statm: 1224 404 348 177 0 127 0

[startup+0.0715441 s]
/proc/loadavg: 2.12 2.06 2.02 4/82 8170
/proc/meminfo: memFree=795616/2055920 swapFree=4176360/4192956
[pid=8170] ppid=8168 vsize=6216 CPUtime=0.06
/proc/8170/stat : 8170 (xsolve) R 8168 8170 8133 0 -1 4194304 810 0 0 0 6 0 0 0 18 0 1 0 2002215363 6365184 776 996147200 134512640 135239859 4294956208 18446744073709551615 12064379 0 0 4096 0 0 0 0 17 1 0 0
/proc/8170/statm: 1554 776 350 177 0 457 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 6216

[startup+0.101546 s]
/proc/loadavg: 2.12 2.06 2.02 4/82 8170
/proc/meminfo: memFree=795616/2055920 swapFree=4176360/4192956
[pid=8170] ppid=8168 vsize=6876 CPUtime=0.09
/proc/8170/stat : 8170 (xsolve) R 8168 8170 8133 0 -1 4194304 976 0 0 0 9 0 0 0 18 0 1 0 2002215363 7041024 942 996147200 134512640 135239859 4294956208 18446744073709551615 12064379 0 0 4096 0 0 0 0 17 1 0 0
/proc/8170/statm: 1719 942 350 177 0 622 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6876

[startup+0.30157 s]
/proc/loadavg: 2.12 2.06 2.02 4/82 8170
/proc/meminfo: memFree=795616/2055920 swapFree=4176360/4192956
[pid=8170] ppid=8168 vsize=11144 CPUtime=0.29
/proc/8170/stat : 8170 (xsolve) R 8168 8170 8133 0 -1 4194304 2089 0 0 0 28 1 0 0 19 0 1 0 2002215363 11411456 2055 996147200 134512640 135239859 4294956208 18446744073709551615 12064379 0 0 4096 0 0 0 0 17 1 0 0
/proc/8170/statm: 2786 2055 350 177 0 1689 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11144

[startup+0.701615 s]
/proc/loadavg: 2.12 2.06 2.02 4/82 8170
/proc/meminfo: memFree=795616/2055920 swapFree=4176360/4192956
[pid=8170] ppid=8168 vsize=19724 CPUtime=0.67
/proc/8170/stat : 8170 (xsolve) R 8168 8170 8133 0 -1 4194304 4195 0 0 0 65 2 0 0 23 0 1 0 2002215363 20197376 4161 996147200 134512640 135239859 4294956208 18446744073709551615 12064379 0 0 4096 0 0 0 0 17 1 0 0
/proc/8170/statm: 4931 4162 350 177 0 3834 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 19724

[startup+1.50171 s]
/proc/loadavg: 2.12 2.06 2.02 3/83 8171
/proc/meminfo: memFree=773912/2055920 swapFree=4176360/4192956
[pid=8170] ppid=8168 vsize=37496 CPUtime=1.47
/proc/8170/stat : 8170 (xsolve) R 8168 8170 8133 0 -1 4194304 8652 0 0 0 143 4 0 0 25 0 1 0 2002215363 38395904 8618 996147200 134512640 135239859 4294956208 18446744073709551615 12064379 0 0 4096 0 0 0 0 17 1 0 0
/proc/8170/statm: 9374 8619 350 177 0 8277 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 37496

[startup+3.10188 s]
/proc/loadavg: 2.12 2.06 2.02 3/83 8171
/proc/meminfo: memFree=749400/2055920 swapFree=4176360/4192956
[pid=8170] ppid=8168 vsize=66260 CPUtime=3.07
/proc/8170/stat : 8170 (xsolve) R 8168 8170 8133 0 -1 4194304 15894 0 0 0 298 9 0 0 25 0 1 0 2002215363 67850240 15860 996147200 134512640 135239859 4294956208 18446744073709551615 134820104 0 0 4096 0 0 0 0 17 1 0 0
/proc/8170/statm: 16565 15860 386 177 0 15468 0
Current children cumulated CPU time (s) 3.07
Current children cumulated vsize (KiB) 66260

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

[startup+3.50293 s]
/proc/loadavg: 2.12 2.06 2.02 3/83 8171
/proc/meminfo: memFree=734040/2055920 swapFree=4176360/4192956
[pid=8170] ppid=8168 vsize=66260 CPUtime=3.47
/proc/8170/stat : 8170 (xsolve) R 8168 8170 8133 0 -1 4194304 15894 0 0 0 338 9 0 0 25 0 1 0 2002215363 67850240 15860 996147200 134512640 135239859 4294956208 18446744073709551615 134820185 0 0 4096 0 0 0 0 17 1 0 0
/proc/8170/statm: 16565 15860 386 177 0 15468 0
Current children cumulated CPU time (s) 3.47
Current children cumulated vsize (KiB) 66260

[startup+3.90298 s]
/proc/loadavg: 2.12 2.06 2.02 3/83 8171
/proc/meminfo: memFree=734040/2055920 swapFree=4176360/4192956
[pid=8170] ppid=8168 vsize=65028 CPUtime=3.87
/proc/8170/stat : 8170 (xsolve) R 8168 8170 8133 0 -1 4194304 15909 0 0 0 378 9 0 0 25 0 1 0 2002215363 66588672 15567 996147200 134512640 135239859 4294956208 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/8170/statm: 16257 15567 401 177 0 15160 0
Current children cumulated CPU time (s) 3.87
Current children cumulated vsize (KiB) 65028

Child status: 0
Real time (s): 3.96641
CPU time (s): 3.9454
CPU user time (s): 3.83642
CPU system time (s): 0.108983
CPU usage (%): 99.4702
Max. virtual memory (cumulated for all children) (KiB): 66260

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.83642
system time used= 0.108983
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15910
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= 7
involuntary context switches= 14

runsolver used 0.005999 second user time and 0.018997 second system time

The end

Launcher Data (download as text)

Begin job on node91 at 2008-07-05 06:34:43
IDJOB=1084992
IDBENCH=57592
IDSOLVER=343
FILE ID=node91/1084992-1215232481
PBS_JOBID= 7881938
Free space on /tmp= 66356 MiB

SOLVER NAME= MDG-noprobe 2008-06-27
BENCH NAME= CPAI08/csp/rand-8-20-5/normalized-rand-8-20-5-18-800-0_ext.xml
COMMAND LINE= HOME/xsolve BENCHNAME -heu dom/wdeg -res no 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1084992-1215232481/watcher-1084992-1215232481 -o /tmp/evaluation-result-1084992-1215232481/solver-1084992-1215232481 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1084992-1215232481.xml -heu dom/wdeg -res no 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= a42b1fcf5ad10b80deb15852b7f7abc6
RANDOM SEED=1073477170

node91.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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:        796160 kB
Buffers:         42028 kB
Cached:         287824 kB
SwapCached:       7700 kB
Active:        1119108 kB
Inactive:        88552 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        796160 kB
SwapTotal:     4192956 kB
SwapFree:      4176360 kB
Dirty:           36812 kB
Writeback:           0 kB
Mapped:         885220 kB
Slab:            34612 kB
Committed_AS: 13283608 kB
PageTables:       4420 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 node91 at 2008-07-05 06:34:47