Trace number 1088340

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
Mistral-option 1.314SAT 0.013997 0.0143019

DiagnosticValue
ASSIGNMENTS46
CHECKS472

General information on the benchmark

Namecsp/graphColoring/
myciel/normalized-myciel5-6.xml
MD5SUM0a0be2fdd09e2bc3026e029c207fdedb
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.011998
Satisfiable
(Un)Satisfiability was proved
Number of variables47
Number of constraints236
Maximum constraint arity2
Maximum domain size6
Number of constraints which are defined in extension0
Number of constraints which are defined in intension236
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.00	c mistral-option version 1.313
0.00/0.01	s SATISFIABLE
0.00/0.01	v 0 5 0 5 4 0 5 0 5 4 3 0 5 0 5 4 0 5 0 5 4 3 2 0 5 0 5 4 0 5 0 5 4 3 0 5 0 5 4 0 5 0 5 4 3 2 1
0.00/0.01	d CHECKS 472
0.00/0.01	d ASSIGNMENTS 46

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-1088340-1215246699/watcher-1088340-1215246699 -o /tmp/evaluation-result-1088340-1215246699/solver-1088340-1215246699 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1088340-1215246699.xml -heu dyn -sac 3 -ds 2 

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: 2.07 2.02 2.08 4/74 15792
/proc/meminfo: memFree=1742600/2055920 swapFree=4180612/4192956
[pid=15792] ppid=15790 vsize=4584 CPUtime=0
/proc/15792/stat : 15792 (xsolve) R 15790 15792 14265 0 -1 4194304 368 0 0 0 0 0 0 0 18 0 1 0 259143764 4694016 334 996147200 134512640 135239763 4294956192 18446744073709551615 6958016 0 0 4096 0 0 0 0 17 1 0 0
/proc/15792/statm: 1146 339 292 177 0 49 0

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

Child status: 0
Real time (s): 0.0143019
CPU time (s): 0.013997
CPU user time (s): 0.008998
CPU system time (s): 0.004999
CPU usage (%): 97.8682
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.008998
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 550
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= 0

runsolver used 0.004999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node82 at 2008-07-05 10:31:39
IDJOB=1088340
IDBENCH=58078
IDSOLVER=357
FILE ID=node82/1088340-1215246699
PBS_JOBID= 7881956
Free space on /tmp= 66476 MiB

SOLVER NAME= Mistral-option 1.314
BENCH NAME= CPAI08/csp/graphColoring/myciel/normalized-myciel5-6.xml
COMMAND LINE= HOME/xsolve BENCHNAME -heu dyn -sac 3 -ds 2 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1088340-1215246699/watcher-1088340-1215246699 -o /tmp/evaluation-result-1088340-1215246699/solver-1088340-1215246699 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1088340-1215246699.xml -heu dyn -sac 3 -ds 2 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 0a0be2fdd09e2bc3026e029c207fdedb
RANDOM SEED=769095538

node82.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		: 3000.239
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		: 3000.239
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:       1743016 kB
Buffers:          7704 kB
Cached:         114768 kB
SwapCached:       4552 kB
Active:         204064 kB
Inactive:        63904 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1743016 kB
SwapTotal:     4192956 kB
SwapFree:      4180612 kB
Dirty:            1324 kB
Writeback:           0 kB
Mapped:         152992 kB
Slab:            29940 kB
Committed_AS:   768244 kB
PageTables:       2064 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 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 node82 at 2008-07-05 10:31:40