Trace number 234820

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
VALCSP 3.0UNSAT 13.079 13.2031

DiagnosticValue
CHECKS2108760000
NODES832

General information on the benchmark

Nametaillard/
os-taillard-5/os-taillard-5-95-0.xml
MD5SUMa3456e6d65e65aed2a5080188859f278
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 benchmark0.021996
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables25
Number of constraints100
Maximum constraint arity2
Maximum domain size285
Number of constraints which are defined in extension0
Number of constraints which are defined in intension100
Global constraints used (with number of constraints)

Solver Data (download as text)

13.19	s UNSATISFIABLE
13.19	d CHECKS 2.10876e+09
13.19	d NODES 832
13.19

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/node15/watcher-234820-1168333488 -o ROOT/results/node15/solver-234820-1168333488 -C 1800 -M 900 /tmp/evaluation/234820-1168333488/VALCSP /tmp/evaluation/234820-1168333488/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: 1.92 1.98 1.99 5/86 5930
/proc/meminfo: memFree=1677584/2055920 swapFree=4174172/4192956
[pid=5929] ppid=5927 vsize=1864 CPUtime=0
/proc/5929/stat : 5929 (VALCSP) R 5927 5929 5874 0 -1 4194304 202 0 0 0 0 0 0 0 20 0 1 0 181743683 1908736 180 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/5929/statm: 466 180 64 8 0 138 0

[startup+0.10601 s]
/proc/loadavg: 1.92 1.98 1.99 5/86 5930
/proc/meminfo: memFree=1677584/2055920 swapFree=4174172/4192956
[pid=5929] ppid=5927 vsize=3316 CPUtime=0.09
/proc/5929/stat : 5929 (VALCSP) R 5927 5929 5874 0 -1 4194304 574 0 0 0 9 0 0 0 20 0 1 0 181743683 3395584 552 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530225 0 0 4096 0 0 0 0 17 1 0 0
/proc/5929/statm: 829 552 64 8 0 501 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3316

[startup+0.514084 s]
/proc/loadavg: 1.92 1.98 1.99 5/86 5930
/proc/meminfo: memFree=1677584/2055920 swapFree=4174172/4192956
[pid=5929] ppid=5927 vsize=9916 CPUtime=0.5
/proc/5929/stat : 5929 (VALCSP) R 5927 5929 5874 0 -1 4194304 2225 0 0 0 49 1 0 0 24 0 1 0 181743683 10153984 2203 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 7947899 0 0 4096 0 0 0 0 17 1 0 0
/proc/5929/statm: 2479 2203 64 8 0 2151 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 9916

[startup+1.33522 s]
/proc/loadavg: 1.92 1.98 1.99 3/86 5930
/proc/meminfo: memFree=1659344/2055920 swapFree=4174172/4192956
[pid=5929] ppid=5927 vsize=22588 CPUtime=1.31
/proc/5929/stat : 5929 (VALCSP) R 5927 5929 5874 0 -1 4194304 5411 0 0 0 129 2 0 0 25 0 1 0 181743683 23130112 5389 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/5929/statm: 5647 5389 64 8 0 5319 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 22588

[startup+2.97251 s]
/proc/loadavg: 1.93 1.98 1.99 3/86 5930
/proc/meminfo: memFree=1655504/2055920 swapFree=4174172/4192956
[pid=5929] ppid=5927 vsize=23380 CPUtime=2.93
/proc/5929/stat : 5929 (VALCSP) R 5927 5929 5874 0 -1 4194304 5582 0 0 0 291 2 0 0 25 0 1 0 181743683 23941120 5560 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134524791 0 0 4096 0 0 0 0 17 1 0 0
/proc/5929/statm: 5845 5560 66 8 0 5517 0
Current children cumulated CPU time (s) 2.93
Current children cumulated vsize (KiB) 23380

[startup+6.25807 s]
/proc/loadavg: 1.93 1.98 1.99 3/86 5930
/proc/meminfo: memFree=1655440/2055920 swapFree=4174172/4192956
[pid=5929] ppid=5927 vsize=23380 CPUtime=6.18
/proc/5929/stat : 5929 (VALCSP) R 5927 5929 5874 0 -1 4194304 5582 0 0 0 616 2 0 0 25 0 1 0 181743683 23941120 5560 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134524787 0 0 4096 0 0 0 0 17 1 0 0
/proc/5929/statm: 5845 5560 66 8 0 5517 0
Current children cumulated CPU time (s) 6.18
Current children cumulated vsize (KiB) 23380

[startup+12.7202 s]
/proc/loadavg: 1.94 1.98 1.99 3/86 5930
/proc/meminfo: memFree=1655504/2055920 swapFree=4174172/4192956
[pid=5929] ppid=5927 vsize=23380 CPUtime=12.6
/proc/5929/stat : 5929 (VALCSP) R 5927 5929 5874 0 -1 4194304 5582 0 0 0 1257 3 0 0 25 0 1 0 181743683 23941120 5560 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134524702 0 0 4096 0 0 0 0 17 1 0 0
/proc/5929/statm: 5845 5560 66 8 0 5517 0
Current children cumulated CPU time (s) 12.6
Current children cumulated vsize (KiB) 23380

Child status: 0
Real time (s): 13.2031
CPU time (s): 13.079
CPU user time (s): 13.044
CPU system time (s): 0.034994
CPU usage (%): 99.0604
Max. virtual memory (cumulated for all children) (KiB): 23380

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 13.044
system time used= 0.034994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5611
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= 8
involuntary context switches= 290

runsolver used 0.016997 s user time and 0.046992 s system time

The end

Launcher Data (download as text)

Begin job on node15 on Tue Jan  9 09:04:48 UTC 2007


IDJOB= 234820
IDBENCH= 6715
FILE ID= node15/234820-1168333488

PBS_JOBID= 3503098

Free space on /tmp= 66561 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-5/os-taillard-5-95-0.xml
COMMAND LINE= /tmp/evaluation/234820-1168333488/VALCSP /tmp/evaluation/234820-1168333488/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node15/watcher-234820-1168333488 -o ROOT/results/node15/solver-234820-1168333488 -C 1800 -M 900  /tmp/evaluation/234820-1168333488/VALCSP /tmp/evaluation/234820-1168333488/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  a3456e6d65e65aed2a5080188859f278

RANDOM SEED= 211340798

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		: 3000.276
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		: 3000.276
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:       1678000 kB
Buffers:         52360 kB
Cached:         185008 kB
SwapCached:       6072 kB
Active:         198428 kB
Inactive:       124716 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1678000 kB
SwapTotal:     4192956 kB
SwapFree:      4174172 kB
Dirty:             252 kB
Writeback:           0 kB
Mapped:          98864 kB
Slab:            39328 kB
Committed_AS:  5704064 kB
PageTables:       2448 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= 66561 MiB



End job on node15 on Tue Jan  9 09:05:02 UTC 2007