Trace number 1084854

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 15.3777 15.3837

DiagnosticValue
ASSIGNMENTS64108
CHECKS3045130

General information on the benchmark

Namecsp/rand-8-20-5/
normalized-rand-8-20-5-18-800-3_ext.xml
MD5SUM8f0b2a49e1135ea84dc0e5c626ff8a69
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 benchmark12.97
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
15.18/15.27	s SATISFIABLE
15.18/15.27	v 0 4 1 0 2 1 0 1 0 2 2 4 2 4 2 2 1 4 3 0
15.18/15.27	d CHECKS 3045134
15.18/15.27	d ASSIGNMENTS 64108

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-1084854-1215232208/watcher-1084854-1215232208 -o /tmp/evaluation-result-1084854-1215232208/solver-1084854-1215232208 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1084854-1215232208.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: 1.92 1.98 1.99 3/73 5525
/proc/meminfo: memFree=1628760/2055924 swapFree=4177320/4192956
[pid=5525] ppid=5523 vsize=4584 CPUtime=0
/proc/5525/stat : 5525 (xsolve) R 5523 5525 5417 0 -1 4194304 372 0 0 0 0 0 0 0 18 0 1 0 678950525 4694016 339 996147200 134512640 135239859 4294956208 18446744073709551615 4159706224 0 0 4096 0 0 0 0 17 1 0 0
/proc/5525/statm: 1146 347 297 177 0 49 0

[startup+0.0791909 s]
/proc/loadavg: 1.92 1.98 1.99 3/73 5525
/proc/meminfo: memFree=1628760/2055924 swapFree=4177320/4192956
[pid=5525] ppid=5523 vsize=6348 CPUtime=0.07
/proc/5525/stat : 5525 (xsolve) R 5523 5525 5417 0 -1 4194304 856 0 0 0 7 0 0 0 18 0 1 0 678950525 6500352 822 996147200 134512640 135239859 4294956208 18446744073709551615 8369787 0 0 4096 0 0 0 0 17 1 0 0
/proc/5525/statm: 1587 822 350 177 0 490 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 6348

[startup+0.101194 s]
/proc/loadavg: 1.92 1.98 1.99 3/73 5525
/proc/meminfo: memFree=1628760/2055924 swapFree=4177320/4192956
[pid=5525] ppid=5523 vsize=6876 CPUtime=0.09
/proc/5525/stat : 5525 (xsolve) R 5523 5525 5417 0 -1 4194304 979 0 0 0 9 0 0 0 18 0 1 0 678950525 7041024 945 996147200 134512640 135239859 4294956208 18446744073709551615 8369787 0 0 4096 0 0 0 0 17 1 0 0
/proc/5525/statm: 1719 945 350 177 0 622 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6876

[startup+0.301231 s]
/proc/loadavg: 1.92 1.98 1.99 3/73 5525
/proc/meminfo: memFree=1628760/2055924 swapFree=4177320/4192956
[pid=5525] ppid=5523 vsize=11276 CPUtime=0.29
/proc/5525/stat : 5525 (xsolve) R 5523 5525 5417 0 -1 4194304 2111 0 0 0 28 1 0 0 19 0 1 0 678950525 11546624 2077 996147200 134512640 135239859 4294956208 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/5525/statm: 2819 2077 350 177 0 1722 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11276

[startup+0.701306 s]
/proc/loadavg: 1.92 1.98 1.99 3/73 5525
/proc/meminfo: memFree=1628760/2055924 swapFree=4177320/4192956
[pid=5525] ppid=5523 vsize=20384 CPUtime=0.69
/proc/5525/stat : 5525 (xsolve) R 5523 5525 5417 0 -1 4194304 4370 0 0 0 67 2 0 0 23 0 1 0 678950525 20873216 4336 996147200 134512640 135239859 4294956208 18446744073709551615 8369787 0 0 4096 0 0 0 0 17 1 0 0
/proc/5525/statm: 5096 4336 350 177 0 3999 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 20384

[startup+1.50145 s]
/proc/loadavg: 1.92 1.98 1.99 3/74 5526
/proc/meminfo: memFree=1605072/2055924 swapFree=4177320/4192956
[pid=5525] ppid=5523 vsize=38732 CPUtime=1.49
/proc/5525/stat : 5525 (xsolve) R 5523 5525 5417 0 -1 4194304 8892 0 0 0 145 4 0 0 25 0 1 0 678950525 39661568 8858 996147200 134512640 135239859 4294956208 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/5525/statm: 9683 8858 350 177 0 8586 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 38732

[startup+3.10175 s]
/proc/loadavg: 2.01 2.00 2.00 3/74 5526
/proc/meminfo: memFree=1579984/2055924 swapFree=4177320/4192956
[pid=5525] ppid=5523 vsize=66268 CPUtime=3.09
/proc/5525/stat : 5525 (xsolve) R 5523 5525 5417 0 -1 4194304 15895 0 0 0 301 8 0 0 25 0 1 0 678950525 67858432 15861 996147200 134512640 135239859 4294956208 18446744073709551615 134820263 0 0 4096 0 0 0 0 17 1 0 0
/proc/5525/statm: 16567 15861 386 177 0 15470 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 66268

[startup+6.30135 s]
/proc/loadavg: 2.01 2.00 2.00 3/74 5526
/proc/meminfo: memFree=1565712/2055924 swapFree=4177320/4192956
[pid=5525] ppid=5523 vsize=66268 CPUtime=6.29
/proc/5525/stat : 5525 (xsolve) R 5523 5525 5417 0 -1 4194304 15895 0 0 0 621 8 0 0 25 0 1 0 678950525 67858432 15861 996147200 134512640 135239859 4294956208 18446744073709551615 135095218 0 0 4096 0 0 0 0 17 1 0 0
/proc/5525/statm: 16567 15861 386 177 0 15470 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 66268

[startup+12.7015 s]
/proc/loadavg: 2.16 2.03 2.01 3/74 5526
/proc/meminfo: memFree=1565968/2055924 swapFree=4177320/4192956
[pid=5525] ppid=5523 vsize=66268 CPUtime=12.69
/proc/5525/stat : 5525 (xsolve) R 5523 5525 5417 0 -1 4194304 15895 0 0 0 1261 8 0 0 25 0 1 0 678950525 67858432 15861 996147200 134512640 135239859 4294956208 18446744073709551615 135095200 0 0 4096 0 0 0 0 17 1 0 0
/proc/5525/statm: 16567 15861 386 177 0 15470 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 66268

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

[startup+14.3058 s]
/proc/loadavg: 2.16 2.03 2.01 3/74 5526
/proc/meminfo: memFree=1566416/2055924 swapFree=4177320/4192956
[pid=5525] ppid=5523 vsize=66268 CPUtime=14.29
/proc/5525/stat : 5525 (xsolve) R 5523 5525 5417 0 -1 4194304 15895 0 0 0 1421 8 0 0 25 0 1 0 678950525 67858432 15861 996147200 134512640 135239859 4294956208 18446744073709551615 135097013 0 0 4096 0 0 0 0 17 1 0 0
/proc/5525/statm: 16567 15861 386 177 0 15470 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 66268

[startup+15.102 s]
/proc/loadavg: 2.16 2.03 2.01 3/74 5526
/proc/meminfo: memFree=1566416/2055924 swapFree=4177320/4192956
[pid=5525] ppid=5523 vsize=66268 CPUtime=15.08
/proc/5525/stat : 5525 (xsolve) R 5523 5525 5417 0 -1 4194304 15895 0 0 0 1500 8 0 0 25 0 1 0 678950525 67858432 15861 996147200 134512640 135239859 4294956208 18446744073709551615 134820005 0 0 4096 0 0 0 0 17 1 0 0
/proc/5525/statm: 16567 15861 386 177 0 15470 0
Current children cumulated CPU time (s) 15.08
Current children cumulated vsize (KiB) 66268

[startup+15.302 s]
/proc/loadavg: 2.16 2.03 2.01 3/74 5526
/proc/meminfo: memFree=1568080/2055924 swapFree=4177320/4192956
[pid=5525] ppid=5523 vsize=64480 CPUtime=15.29
/proc/5525/stat : 5525 (xsolve) R 5523 5525 5417 0 -1 4194304 15910 0 0 0 1521 8 0 0 25 0 1 0 678950525 66027520 15445 996147200 134512640 135239859 4294956208 18446744073709551615 8364184 0 0 4096 0 0 0 0 17 1 0 0
/proc/5525/statm: 16120 15445 401 177 0 15023 0
Current children cumulated CPU time (s) 15.29
Current children cumulated vsize (KiB) 64480

Child status: 0
Real time (s): 15.3837
CPU time (s): 15.3777
CPU user time (s): 15.2817
CPU system time (s): 0.095985
CPU usage (%): 99.961
Max. virtual memory (cumulated for all children) (KiB): 66268

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.2817
system time used= 0.095985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15911
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= 24

runsolver used 0.017997 second user time and 0.047992 second system time

The end

Launcher Data (download as text)

Begin job on node83 at 2008-07-05 06:30:09
IDJOB=1084854
IDBENCH=57586
IDSOLVER=343
FILE ID=node83/1084854-1215232208
PBS_JOBID= 7881916
Free space on /tmp= 66476 MiB

SOLVER NAME= MDG-noprobe 2008-06-27
BENCH NAME= CPAI08/csp/rand-8-20-5/normalized-rand-8-20-5-18-800-3_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-1084854-1215232208/watcher-1084854-1215232208 -o /tmp/evaluation-result-1084854-1215232208/solver-1084854-1215232208 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1084854-1215232208.xml -heu dom/wdeg -res no 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 8f0b2a49e1135ea84dc0e5c626ff8a69
RANDOM SEED=656481899

node83.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		: 3000.263
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		: 3000.263
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:      2055924 kB
MemFree:       1629176 kB
Buffers:         61284 kB
Cached:         300244 kB
SwapCached:       9820 kB
Active:         215744 kB
Inactive:       162184 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1629176 kB
SwapTotal:     4192956 kB
SwapFree:      4177320 kB
Dirty:           22940 kB
Writeback:           0 kB
Mapped:          21624 kB
Slab:            34276 kB
Committed_AS:  1118332 kB
PageTables:       1724 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= 66476 MiB
End job on node83 at 2008-07-05 06:30:25