Trace number 1080182

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 4.6263 4.67556

DiagnosticValue
ASSIGNMENTS16195
CHECKS2450860

General information on the benchmark

Namecsp/rand-3-20-20/
normalized-rand-3-20-20-60-632-41_ext.xml
MD5SUMb5cf0a5cebccc02723b1c0e25cb32a5b
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 benchmark4.5773
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints60
Maximum constraint arity3
Maximum domain size20
Number of constraints which are defined in extension60
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.02	c mistral-prime version 1.313
4.54/4.66	s SATISFIABLE
4.54/4.66	v 18 4 0 13 18 1 0 8 10 9 17 8 6 0 15 6 4 11 10 10
4.54/4.66	d CHECKS 2450857
4.54/4.66	d ASSIGNMENTS 16195

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-1080182-1215212224/watcher-1080182-1215212224 -o /tmp/evaluation-result-1080182-1215212224/solver-1080182-1215212224 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1080182-1215212224.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: 2.00 2.00 2.00 4/80 24309
/proc/meminfo: memFree=1715608/2055920 swapFree=4179472/4192956
[pid=24309] ppid=24307 vsize=18572 CPUtime=0
/proc/24309/stat : 24309 (runsolver) R 24307 24309 21677 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 2000198013 19017728 292 996147200 4194304 4296836 548682068400 18446744073709551615 259353275687 0 0 4096 24578 0 0 0 17 1 0 0
/proc/24309/statm: 4643 292 257 25 0 2626 0

[startup+0.0934241 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 24309
/proc/meminfo: memFree=1715608/2055920 swapFree=4179472/4192956
[pid=24309] ppid=24307 vsize=6056 CPUtime=0.08
/proc/24309/stat : 24309 (xsolve) R 24307 24309 21677 0 -1 4194304 812 0 0 0 8 0 0 0 19 0 1 0 2000198013 6201344 778 996147200 134512640 135239859 4294956176 18446744073709551615 134643657 0 0 4096 0 0 0 0 17 1 0 0
/proc/24309/statm: 1514 778 350 177 0 417 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 6056

[startup+0.102809 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 24309
/proc/meminfo: memFree=1715608/2055920 swapFree=4179472/4192956
[pid=24309] ppid=24307 vsize=6188 CPUtime=0.08
/proc/24309/stat : 24309 (xsolve) R 24307 24309 21677 0 -1 4194304 828 0 0 0 8 0 0 0 19 0 1 0 2000198013 6336512 794 996147200 134512640 135239859 4294956176 18446744073709551615 134573960 0 0 4096 0 0 0 0 17 1 0 0
/proc/24309/statm: 1547 794 350 177 0 450 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 6188

[startup+0.301461 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 24309
/proc/meminfo: memFree=1715608/2055920 swapFree=4179472/4192956
[pid=24309] ppid=24307 vsize=8208 CPUtime=0.28
/proc/24309/stat : 24309 (xsolve) R 24307 24309 21677 0 -1 4194304 1389 0 0 0 28 0 0 0 21 0 1 0 2000198013 8404992 1355 996147200 134512640 135239859 4294956176 18446744073709551615 135013806 0 0 4096 0 0 0 0 17 1 0 0
/proc/24309/statm: 2052 1355 386 177 0 955 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 8208

[startup+0.701537 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 24309
/proc/meminfo: memFree=1715608/2055920 swapFree=4179472/4192956
[pid=24309] ppid=24307 vsize=8212 CPUtime=0.68
/proc/24309/stat : 24309 (xsolve) R 24307 24309 21677 0 -1 4194304 1390 0 0 0 68 0 0 0 25 0 1 0 2000198013 8409088 1356 996147200 134512640 135239859 4294956176 18446744073709551615 135013801 0 0 4096 0 0 0 0 17 1 0 0
/proc/24309/statm: 2053 1356 386 177 0 956 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 8212

[startup+1.50169 s]
/proc/loadavg: 2.00 2.00 2.00 3/81 24310
/proc/meminfo: memFree=1711632/2055920 swapFree=4179472/4192956
[pid=24309] ppid=24307 vsize=8212 CPUtime=1.47
/proc/24309/stat : 24309 (xsolve) R 24307 24309 21677 0 -1 4194304 1390 0 0 0 147 0 0 0 25 0 1 0 2000198013 8409088 1356 996147200 134512640 135239859 4294956176 18446744073709551615 134789577 0 0 4096 0 0 0 0 17 1 0 0
/proc/24309/statm: 2053 1356 386 177 0 956 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 8212

[startup+3.10301 s]
/proc/loadavg: 2.00 2.00 2.00 3/81 24310
/proc/meminfo: memFree=1711440/2055920 swapFree=4179472/4192956
[pid=24309] ppid=24307 vsize=8212 CPUtime=3.06
/proc/24309/stat : 24309 (xsolve) R 24307 24309 21677 0 -1 4194304 1390 0 0 0 306 0 0 0 25 0 1 0 2000198013 8409088 1356 996147200 134512640 135239859 4294956176 18446744073709551615 135030995 0 0 4096 0 0 0 0 17 1 0 0
/proc/24309/statm: 2053 1356 386 177 0 956 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 8212

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

[startup+3.90117 s]
/proc/loadavg: 2.00 2.00 2.00 3/81 24310
/proc/meminfo: memFree=1711376/2055920 swapFree=4179472/4192956
[pid=24309] ppid=24307 vsize=8212 CPUtime=3.85
/proc/24309/stat : 24309 (xsolve) R 24307 24309 21677 0 -1 4194304 1390 0 0 0 385 0 0 0 25 0 1 0 2000198013 8409088 1356 996147200 134512640 135239859 4294956176 18446744073709551615 134820080 0 0 4096 0 0 0 0 17 1 0 0
/proc/24309/statm: 2053 1356 386 177 0 956 0
Current children cumulated CPU time (s) 3.85
Current children cumulated vsize (KiB) 8212

[startup+4.30125 s]
/proc/loadavg: 2.00 2.00 2.00 3/81 24310
/proc/meminfo: memFree=1711376/2055920 swapFree=4179472/4192956
[pid=24309] ppid=24307 vsize=8212 CPUtime=4.25
/proc/24309/stat : 24309 (xsolve) R 24307 24309 21677 0 -1 4194304 1390 0 0 0 425 0 0 0 25 0 1 0 2000198013 8409088 1356 996147200 134512640 135239859 4294956176 18446744073709551615 134820017 0 0 4096 0 0 0 0 17 1 0 0
/proc/24309/statm: 2053 1356 386 177 0 956 0
Current children cumulated CPU time (s) 4.25
Current children cumulated vsize (KiB) 8212

[startup+4.50267 s]
/proc/loadavg: 2.00 2.00 2.00 3/81 24310
/proc/meminfo: memFree=1711376/2055920 swapFree=4179472/4192956
[pid=24309] ppid=24307 vsize=8212 CPUtime=4.44
/proc/24309/stat : 24309 (xsolve) R 24307 24309 21677 0 -1 4194304 1390 0 0 0 444 0 0 0 25 0 1 0 2000198013 8409088 1356 996147200 134512640 135239859 4294956176 18446744073709551615 135097003 0 0 4096 0 0 0 0 17 1 0 0
/proc/24309/statm: 2053 1356 386 177 0 956 0
Current children cumulated CPU time (s) 4.44
Current children cumulated vsize (KiB) 8212

[startup+4.60131 s]
/proc/loadavg: 2.00 2.00 2.00 3/81 24310
/proc/meminfo: memFree=1711376/2055920 swapFree=4179472/4192956
[pid=24309] ppid=24307 vsize=8212 CPUtime=4.54
/proc/24309/stat : 24309 (xsolve) R 24307 24309 21677 0 -1 4194304 1390 0 0 0 454 0 0 0 25 0 1 0 2000198013 8409088 1356 996147200 134512640 135239859 4294956176 18446744073709551615 134820192 0 0 4096 0 0 0 0 17 1 0 0
/proc/24309/statm: 2053 1356 386 177 0 956 0
Current children cumulated CPU time (s) 4.54
Current children cumulated vsize (KiB) 8212

Child status: 0
Real time (s): 4.67556
CPU time (s): 4.6263
CPU user time (s): 4.6173
CPU system time (s): 0.008998
CPU usage (%): 98.9462
Max. virtual memory (cumulated for all children) (KiB): 8212

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.6173
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1407
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= 109

runsolver used 0.007998 second user time and 0.016997 second system time

The end

Launcher Data (download as text)

Begin job on node1 at 2008-07-05 00:57:04
IDJOB=1080182
IDBENCH=56941
IDSOLVER=343
FILE ID=node1/1080182-1215212224
PBS_JOBID= 7881642
Free space on /tmp= 66516 MiB

SOLVER NAME= MDG-noprobe 2008-06-27
BENCH NAME= CPAI08/csp/rand-3-20-20/normalized-rand-3-20-20-60-632-41_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-1080182-1215212224/watcher-1080182-1215212224 -o /tmp/evaluation-result-1080182-1215212224/solver-1080182-1215212224 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1080182-1215212224.xml -heu dom/wdeg -res no 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= b5cf0a5cebccc02723b1c0e25cb32a5b
RANDOM SEED=1220228633

node1.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		: 3000.265
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		: 3000.265
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:       1716088 kB
Buffers:         33652 kB
Cached:         177608 kB
SwapCached:       7496 kB
Active:         203636 kB
Inactive:        84512 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1716088 kB
SwapTotal:     4192956 kB
SwapFree:      4179472 kB
Dirty:            2224 kB
Writeback:           0 kB
Mapped:          93276 kB
Slab:            36744 kB
Committed_AS:  3983824 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= 66512 MiB
End job on node1 at 2008-07-05 00:57:09