Trace number 2070889

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
pcs 0.3.2UNSAT 0.396938 0.405525

DiagnosticValue
ASSIGNMENTS6978

General information on the benchmark

Namecsp/dubois/
normalized-dubois-100_ext.xml
MD5SUM751ddd7218f8f782ca5fbeab1c665c06
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.196969
Satisfiable
(Un)Satisfiability was proved
Number of variables300
Number of constraints200
Maximum constraint arity3
Maximum domain size2
Number of constraints which are defined in extension200
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.00/0.02	c Seed is 335791984
0.00/0.02	c Constructing HOME/instance-2070889-1247709262.xml  with 800 constraints
0.00/0.02	c Solving 6978 backtracks 13 restarts
0.37/0.40	s UNSATISFIABLE
0.37/0.40	d ASSIGNMENTS 6978

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2070889-1247709262/watcher-2070889-1247709262 -o /tmp/evaluation-result-2070889-1247709262/solver-2070889-1247709262 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 335791984 HOME/instance-2070889-1247709262.xml 

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): 2000 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


[startup+0 s]
/proc/loadavg: 2.17 2.22 2.17 4/83 15281
/proc/meminfo: memFree=567704/2055920 swapFree=4192812/4192956
[pid=15281] ppid=15279 vsize=5356 CPUtime=0
/proc/15281/stat : 15281 (pcssolve) R 15279 15281 15200 0 -1 4194304 273 0 0 0 0 0 0 0 20 0 1 0 57991281 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 269807577759 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/15281/statm: 1339 241 200 169 0 50 0

[startup+0.085822 s]
/proc/loadavg: 2.17 2.22 2.17 4/83 15281
/proc/meminfo: memFree=567704/2055920 swapFree=4192812/4192956
[pid=15281] ppid=15279 vsize=4664 CPUtime=0.06
/proc/15281/stat : 15281 (pcs.small) R 15279 15281 15200 0 -1 4194304 900 816 0 0 6 0 0 0 24 0 1 0 57991281 4775936 509 996147200 134512640 135095119 4294956304 18446744073709551615 5774855 0 0 4096 0 0 0 0 17 0 0 0
/proc/15281/statm: 1166 509 378 142 0 120 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 4664

[startup+0.101824 s]
/proc/loadavg: 2.17 2.22 2.17 4/83 15281
/proc/meminfo: memFree=567704/2055920 swapFree=4192812/4192956
[pid=15281] ppid=15279 vsize=4928 CPUtime=0.08
/proc/15281/stat : 15281 (pcs.small) R 15279 15281 15200 0 -1 4194304 942 816 0 0 8 0 0 0 24 0 1 0 57991281 5046272 551 996147200 134512640 135095119 4294956304 18446744073709551615 134555250 0 0 4096 0 0 0 0 17 0 0 0
/proc/15281/statm: 1232 551 378 142 0 186 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4928

[startup+0.301848 s]
/proc/loadavg: 2.17 2.22 2.17 4/83 15281
/proc/meminfo: memFree=567704/2055920 swapFree=4192812/4192956
[pid=15281] ppid=15279 vsize=5828 CPUtime=0.28
/proc/15281/stat : 15281 (pcs.small) R 15279 15281 15200 0 -1 4194304 1194 816 0 0 28 0 0 0 25 0 1 0 57991281 5967872 770 996147200 134512640 135095119 4294956304 18446744073709551615 134642917 0 0 4096 0 0 0 0 17 0 0 0
/proc/15281/statm: 1457 770 378 142 0 411 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5828

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

[startup+0.401862 s]
/proc/loadavg: 2.17 2.22 2.17 4/83 15281
/proc/meminfo: memFree=567704/2055920 swapFree=4192812/4192956
[pid=15281] ppid=15279 vsize=6340 CPUtime=0.37
/proc/15281/stat : 15281 (pcs.small) R 15279 15281 15200 0 -1 4194304 1329 816 0 0 37 0 0 0 25 0 1 0 57991281 6492160 905 996147200 134512640 135095119 4294956304 18446744073709551615 134587131 0 0 4096 0 0 0 0 17 0 0 0
/proc/15281/statm: 1585 905 378 142 0 539 0
Current children cumulated CPU time (s) 0.37
Current children cumulated vsize (KiB) 6340

Child status: 0
Real time (s): 0.405525
CPU time (s): 0.396938
CPU user time (s): 0.381941
CPU system time (s): 0.014997
CPU usage (%): 97.8825
Max. virtual memory (cumulated for all children) (KiB): 6340

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.381941
system time used= 0.014997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2148
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= 18
involuntary context switches= 20

runsolver used 0.004999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node81 at 2009-07-16 03:54:22
IDJOB=2070889
IDBENCH=55416
IDSOLVER=733
FILE ID=node81/2070889-1247709262
PBS_JOBID= 9521337
Free space on /tmp= 126664 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/dubois/normalized-dubois-100_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2070889-1247709262/watcher-2070889-1247709262 -o /tmp/evaluation-result-2070889-1247709262/solver-2070889-1247709262 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 335791984 HOME/instance-2070889-1247709262.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 751ddd7218f8f782ca5fbeab1c665c06
RANDOM SEED=335791984

node81.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		: 3000.233
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		: 3000.233
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:        568184 kB
Buffers:         82432 kB
Cached:         544052 kB
SwapCached:          0 kB
Active:         947624 kB
Inactive:       449808 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        568184 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1768 kB
Writeback:           0 kB
Mapped:         791380 kB
Slab:            73820 kB
Committed_AS:  1335264 kB
PageTables:       3396 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= 126664 MiB
End job on node81 at 2009-07-16 03:54:23