Trace number 270140

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, and are wall clock time (not CPU 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
CSP4J - MAC 2007-01-16UNSAT 1.13383 1.17442

DiagnosticValue
CHECKS12001
NODES0

General information on the benchmark

Namepigeons/
pigeons-20-ord.xml
MD5SUM50aabcc3ef01e29d19a6a938b0592422
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.045992
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables20
Number of constraints380
Maximum constraint arity2
Maximum domain size19
Number of constraints which are defined in extension0
Number of constraints which are defined in intension380
Global constraints used (with number of constraints)

Solver Data (download as text)

1.14	s UNSATISFIABLE
1.14	c 0.03 s
1.14	d NODES 0
1.14	d CHECKS 12001

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node18/watcher-270140-1169137863 -o ROOT/results/node18/solver-270140-1169137863 -C 1800 -M 900 /tmp/evaluation/270140-1169137863/cspfj.sh -competition /tmp/evaluation/270140-1169137863/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 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
Current StackSize limit: 10240 KiB

/proc/loadavg: 1.37 1.69 1.67 4/78 4394
/proc/meminfo: memFree=1541664/2055920 swapFree=4192812/4192956
[pid=4393] ppid=4391 vsize=5352 CPUtime=0
/proc/4393/stat : 4393 (cspfj.sh) D 4391 4393 3874 0 -1 4194304 295 128 0 0 0 0 0 0 18 0 1 0 262181049 5480448 240 18446744073709551615 4194304 4889804 548682069312 18446744073709551615 227848976997 0 2147483391 4100 65536 18446744072099781622 0 0 17 1 0 0
/proc/4393/statm: 1338 240 201 169 0 49 0

[startup+0.104035 s]
/proc/loadavg: 1.37 1.69 1.67 4/78 4394
/proc/meminfo: memFree=1541664/2055920 swapFree=4192812/4192956
[pid=4393] ppid=4391 vsize=5352 CPUtime=0
/proc/4393/stat : 4393 (cspfj.sh) S 4391 4393 3874 0 -1 4194304 315 128 0 0 0 0 0 0 18 0 1 0 262181049 5480448 240 18446744073709551615 4194304 4889804 548682069312 18446744073709551615 227848807236 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/4393/statm: 1338 240 201 169 0 49 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5352

[startup+0.515083 s]
/proc/loadavg: 1.37 1.69 1.67 4/78 4394
/proc/meminfo: memFree=1541664/2055920 swapFree=4192812/4192956
[pid=4393] ppid=4391 vsize=5352 CPUtime=0
/proc/4393/stat : 4393 (cspfj.sh) S 4391 4393 3874 0 -1 4194304 315 128 0 0 0 0 0 0 18 0 1 0 262181049 5480448 240 18446744073709551615 4194304 4889804 548682069312 18446744073709551615 227848807236 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/4393/statm: 1338 240 201 169 0 49 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5352

Child status: 0
Real time (s): 1.17442
CPU time (s): 1.13383
CPU user time (s): 1.09483
CPU system time (s): 0.038994
CPU usage (%): 96.5436
Max. virtual memory (cumulated for all children) (KiB): 872492

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.09483
system time used= 0.038994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5194
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 820
involuntary context switches= 137

runsolver used 0.004999 s user time and 0.007998 s system time

The end

Launcher Data (download as text)

Begin job on node18 on Thu Jan 18 16:31:04 UTC 2007


IDJOB= 270140
IDBENCH= 3554
IDSOLVER= 91
FILE ID= node18/270140-1169137863

PBS_JOBID= 3582485

Free space on /tmp= 66564 MiB

SOLVER NAME= CSP4J - MAC 2007-01-16
BENCH NAME= HOME/pub/bench/CPAI06/pigeons/pigeons-20-ord.xml
COMMAND LINE= /tmp/evaluation/270140-1169137863/cspfj.sh  -competition /tmp/evaluation/270140-1169137863/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-270140-1169137863 -o ROOT/results/node18/solver-270140-1169137863 -C 1800 -M 900  /tmp/evaluation/270140-1169137863/cspfj.sh  -competition /tmp/evaluation/270140-1169137863/unknown.xml

META MD5SUM SOLVER= 1cf1b9d4821c2ee5eee0dc0e02656faa
MD5SUM BENCH=  50aabcc3ef01e29d19a6a938b0592422

RANDOM SEED= 501921239

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1542080 kB
Buffers:         41444 kB
Cached:         337724 kB
SwapCached:          0 kB
Active:          93856 kB
Inactive:       340736 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1542080 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:             264 kB
Writeback:           0 kB
Mapped:          74388 kB
Slab:            64832 kB
Committed_AS:  7191648 kB
PageTables:       1720 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= 66564 MiB



End job on node18 on Thu Jan 18 16:31:05 UTC 2007