Trace number 1097257

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 0.273958 0.274399

DiagnosticValue
ASSIGNMENTS1942
CHECKS666487

General information on the benchmark

Namecsp/tightness0.5/
normalized-rand-2-40-25-180-500-19_ext.xml
MD5SUMa03f37c643c6b5584586259f915b7390
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.273958
Satisfiable
(Un)Satisfiability was proved
Number of variables40
Number of constraints180
Maximum constraint arity2
Maximum domain size25
Number of constraints which are defined in extension180
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
0.19/0.26	s SATISFIABLE
0.19/0.27	v 11 21 7 12 14 3 1 19 9 15 6 15 7 20 20 8 0 9 18 21 0 12 8 19 17 7 12 5 7 11 17 13 10 2 17 0 1 24 0 4
0.19/0.27	d CHECKS 666487
0.19/0.27	d ASSIGNMENTS 1942

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-1097257-1215281617/watcher-1097257-1215281617 -o /tmp/evaluation-result-1097257-1215281617/solver-1097257-1215281617 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1097257-1215281617.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: 2.27 2.11 2.02 4/73 19323
/proc/meminfo: memFree=1713392/2055920 swapFree=4180580/4192956
[pid=19323] ppid=19321 vsize=4584 CPUtime=0
/proc/19323/stat : 19323 (xsolve) R 19321 19323 17664 0 -1 4194304 331 0 0 0 0 0 0 0 18 0 1 0 651092149 4694016 298 996147200 134512640 135239859 4294956208 18446744073709551615 134672272 0 0 4096 0 0 0 0 17 0 0 0
/proc/19323/statm: 1146 302 257 177 0 49 0

[startup+0.067538 s]
/proc/loadavg: 2.27 2.11 2.02 4/73 19323
/proc/meminfo: memFree=1713392/2055920 swapFree=4180580/4192956
[pid=19323] ppid=19321 vsize=6172 CPUtime=0.06
/proc/19323/stat : 19323 (xsolve) R 19321 19323 17664 0 -1 4194304 855 0 0 0 6 0 0 0 18 0 1 0 651092149 6320128 821 996147200 134512640 135239859 4294956208 18446744073709551615 135095792 0 0 4096 0 0 0 0 17 0 0 0
/proc/19323/statm: 1543 821 386 177 0 446 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 6172

[startup+0.10154 s]
/proc/loadavg: 2.27 2.11 2.02 4/73 19323
/proc/meminfo: memFree=1713392/2055920 swapFree=4180580/4192956
[pid=19323] ppid=19321 vsize=6176 CPUtime=0.09
/proc/19323/stat : 19323 (xsolve) R 19321 19323 17664 0 -1 4194304 856 0 0 0 9 0 0 0 18 0 1 0 651092149 6324224 822 996147200 134512640 135239859 4294956208 18446744073709551615 135087606 0 0 4096 0 0 0 0 17 0 0 0
/proc/19323/statm: 1544 822 386 177 0 447 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6176

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

[startup+0.201551 s]
/proc/loadavg: 2.27 2.11 2.02 4/73 19323
/proc/meminfo: memFree=1713392/2055920 swapFree=4180580/4192956
[pid=19323] ppid=19321 vsize=6176 CPUtime=0.19
/proc/19323/stat : 19323 (xsolve) R 19321 19323 17664 0 -1 4194304 856 0 0 0 19 0 0 0 18 0 1 0 651092149 6324224 822 996147200 134512640 135239859 4294956208 18446744073709551615 135103182 0 0 4096 0 0 0 0 17 0 0 0
/proc/19323/statm: 1544 822 386 177 0 447 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 6176

Child status: 0
Real time (s): 0.274399
CPU time (s): 0.273958
CPU user time (s): 0.267959
CPU system time (s): 0.005999
CPU usage (%): 99.8393
Max. virtual memory (cumulated for all children) (KiB): 6176

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.267959
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 872
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= 7

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node79 at 2008-07-05 20:13:37
IDJOB=1097257
IDBENCH=59395
IDSOLVER=343
FILE ID=node79/1097257-1215281617
PBS_JOBID= 7882283
Free space on /tmp= 66496 MiB

SOLVER NAME= MDG-noprobe 2008-06-27
BENCH NAME= CPAI08/csp/tightness0.5/normalized-rand-2-40-25-180-500-19_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-1097257-1215281617/watcher-1097257-1215281617 -o /tmp/evaluation-result-1097257-1215281617/solver-1097257-1215281617 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1097257-1215281617.xml -heu dom/wdeg -res no 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= a03f37c643c6b5584586259f915b7390
RANDOM SEED=328069415

node79.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		: 3000.218
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		: 3000.218
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:       1713936 kB
Buffers:         51960 kB
Cached:         193336 kB
SwapCached:       6916 kB
Active:         194272 kB
Inactive:        96680 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1713936 kB
SwapTotal:     4192956 kB
SwapFree:      4180580 kB
Dirty:            1820 kB
Writeback:           0 kB
Mapped:          51176 kB
Slab:            36448 kB
Committed_AS:  1170536 kB
PageTables:       1784 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= 66496 MiB
End job on node79 at 2008-07-05 20:13:38