Trace number 200515

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 - Combo 2006-12-19UNSAT 0.992848 1.02229

DiagnosticValue
NODES819

General information on the benchmark

NamequeensKnights/
queensKnights-8-5-add.xml
MD5SUMfb89044d0461f09d70d166dc664334ac
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 benchmark0.090985
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables13
Number of constraints38
Maximum constraint arity2
Maximum domain size64
Number of constraints which are defined in extension0
Number of constraints which are defined in intension38
Global constraints used (with number of constraints)

Solver Data (download as text)

1.00	s UNSATISFIABLE
1.00	d NODES 819

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/node39/watcher-200515-1168142802 -o ROOT/results/node39/solver-200515-1168142802 -C 1800 -M 900 /tmp/evaluation/200515-1168142802/cspfj.sh -solver Combo -competition /tmp/evaluation/200515-1168142802/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: 0.85 0.99 1.33 4/68 10752
/proc/meminfo: memFree=1541248/2055920 swapFree=4187312/4192956
[pid=10751] ppid=10749 vsize=5352 CPUtime=0
/proc/10751/stat : 10751 (cspfj.sh) D 10749 10751 10641 0 -1 4194304 295 128 0 0 0 0 0 0 18 0 1 0 162679859 5480448 240 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 231493827173 0 2147483391 4100 65536 18446744072099781622 0 0 17 1 0 0
/proc/10751/statm: 1338 240 201 169 0 49 0

[startup+0.10364 s]
/proc/loadavg: 0.85 0.99 1.33 4/68 10752
/proc/meminfo: memFree=1541248/2055920 swapFree=4187312/4192956
[pid=10751] ppid=10749 vsize=5352 CPUtime=0
/proc/10751/stat : 10751 (cspfj.sh) S 10749 10751 10641 0 -1 4194304 315 128 0 0 0 0 0 0 19 0 1 0 162679859 5480448 240 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 231493657412 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/10751/statm: 1338 240 201 169 0 49 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5352

[startup+0.511676 s]
/proc/loadavg: 0.85 0.99 1.33 4/68 10752
/proc/meminfo: memFree=1541248/2055920 swapFree=4187312/4192956
[pid=10751] ppid=10749 vsize=5352 CPUtime=0
/proc/10751/stat : 10751 (cspfj.sh) S 10749 10751 10641 0 -1 4194304 315 128 0 0 0 0 0 0 19 0 1 0 162679859 5480448 240 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 231493657412 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/10751/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): 1.02229
CPU time (s): 0.992848
CPU user time (s): 0.927858
CPU system time (s): 0.06499
CPU usage (%): 97.1201
Max. virtual memory (cumulated for all children) (KiB): 5352

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.927858
system time used= 0.06499
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4524
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= 697
involuntary context switches= 570

runsolver used 0.002999 s user time and 0.004999 s system time

The end

Launcher Data (download as text)

Begin job on node39 on Sun Jan  7 04:06:43 UTC 2007


IDJOB= 200515
IDBENCH= 3712
FILE ID= node39/200515-1168142802

PBS_JOBID= 3478104

Free space on /tmp= 66554 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queensKnights/queensKnights-8-5-add.xml
COMMAND LINE= /tmp/evaluation/200515-1168142802/cspfj.sh -solver Combo -competition /tmp/evaluation/200515-1168142802/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node39/watcher-200515-1168142802 -o ROOT/results/node39/solver-200515-1168142802 -C 1800 -M 900  /tmp/evaluation/200515-1168142802/cspfj.sh -solver Combo -competition /tmp/evaluation/200515-1168142802/unknown.xml

META MD5SUM SOLVER= ae5901f6cce23734dab709fa25e92adb
MD5SUM BENCH=  fb89044d0461f09d70d166dc664334ac

RANDOM SEED= 37333726

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		: 3000.236
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		: 3000.236
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:       1541792 kB
Buffers:         31040 kB
Cached:         408664 kB
SwapCached:       1548 kB
Active:         154192 kB
Inactive:       301528 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1541792 kB
SwapTotal:     4192956 kB
SwapFree:      4187312 kB
Dirty:             480 kB
Writeback:           0 kB
Mapped:          23040 kB
Slab:            44276 kB
Committed_AS:  3276316 kB
PageTables:       1620 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= 66554 MiB



End job on node39 on Sun Jan  7 04:06:44 UTC 2007