Trace number 2057007

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 1.85972 1.8611

DiagnosticValue
ASSIGNMENTS10360

General information on the benchmark

Namecsp/QCP-15/
normalized-qcp-15-120-13_ext.xml
MD5SUMe163336b7fd297141773c350ceb1e4d5
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.68674
Satisfiable
(Un)Satisfiability was proved
Number of variables225
Number of constraints2520
Maximum constraint arity2
Maximum domain size15
Number of constraints which are defined in extension2520
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
0.00/0.01	c Seed is 562274529
0.00/0.01	c Constructing HOME/instance-2057007-1247694204.xml  with 14280 constraints
0.00/0.06	c Solving 10360 backtracks 14 restarts
1.78/1.86	s UNSATISFIABLE
1.78/1.86	d ASSIGNMENTS 10360

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-2057007-1247694204/watcher-2057007-1247694204 -o /tmp/evaluation-result-2057007-1247694204/solver-2057007-1247694204 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 562274529 HOME/instance-2057007-1247694204.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: 0.00 0.00 0.00 3/67 9067
/proc/meminfo: memFree=1417032/2055920 swapFree=4192812/4192956
[pid=9067] ppid=9065 vsize=5356 CPUtime=0
/proc/9067/stat : 9067 (pcssolve) R 9065 9067 9030 0 -1 4194304 348 651 0 0 0 0 0 0 19 0 1 0 56486951 5484544 243 996147200 4194304 4889804 548682068800 18446744073709551615 221236488863 0 65538 4100 65536 0 0 0 17 0 0 0
/proc/9067/statm: 1339 243 202 169 0 50 0
[pid=9072] ppid=9067 vsize=248 CPUtime=0
/proc/9072/stat : 9072 (grep) R 9067 9067 9030 0 -1 4194304 52 0 0 0 0 0 0 0 18 0 1 0 56486952 253952 31 996147200 4194304 4274172 548682068960 18446744073709551615 221233870313 0 0 4096 0 0 0 0 17 1 0 0
/proc/9072/statm: 333 33 25 19 0 4 0

[startup+0.0953689 s]
/proc/loadavg: 0.00 0.00 0.00 3/67 9067
/proc/meminfo: memFree=1417032/2055920 swapFree=4192812/4192956
[pid=9067] ppid=9065 vsize=6396 CPUtime=0.07
/proc/9067/stat : 9067 (pcs.small) R 9065 9067 9030 0 -1 4194304 1396 824 0 0 7 0 0 0 21 0 1 0 56486951 6549504 907 996147200 134512640 135095119 4294956304 18446744073709551615 134589545 0 0 4096 0 0 0 0 17 0 0 0
/proc/9067/statm: 1599 907 378 142 0 553 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 6396

[startup+0.101366 s]
/proc/loadavg: 0.00 0.00 0.00 3/67 9067
/proc/meminfo: memFree=1417032/2055920 swapFree=4192812/4192956
[pid=9067] ppid=9065 vsize=6396 CPUtime=0.08
/proc/9067/stat : 9067 (pcs.small) R 9065 9067 9030 0 -1 4194304 1399 824 0 0 8 0 0 0 22 0 1 0 56486951 6549504 910 996147200 134512640 135095119 4294956304 18446744073709551615 134617027 0 0 4096 0 0 0 0 17 0 0 0
/proc/9067/statm: 1599 910 378 142 0 553 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 6396

[startup+0.301385 s]
/proc/loadavg: 0.00 0.00 0.00 3/67 9067
/proc/meminfo: memFree=1417032/2055920 swapFree=4192812/4192956
[pid=9067] ppid=9065 vsize=6680 CPUtime=0.28
/proc/9067/stat : 9067 (pcs.small) R 9065 9067 9030 0 -1 4194304 1464 824 0 0 28 0 0 0 23 0 1 0 56486951 6840320 975 996147200 134512640 135095119 4294956304 18446744073709551615 134580454 0 0 4096 0 0 0 0 17 0 0 0
/proc/9067/statm: 1670 975 378 142 0 624 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6680

[startup+0.701432 s]
/proc/loadavg: 0.00 0.00 0.00 3/67 9067
/proc/meminfo: memFree=1417032/2055920 swapFree=4192812/4192956
[pid=9067] ppid=9065 vsize=8104 CPUtime=0.68
/proc/9067/stat : 9067 (pcs.small) R 9065 9067 9030 0 -1 4194304 1898 824 0 0 67 1 0 0 25 0 1 0 56486951 8298496 1182 996147200 134512640 135095119 4294956304 18446744073709551615 134589569 0 0 4096 0 0 0 0 17 0 0 0
/proc/9067/statm: 2026 1182 378 142 0 980 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 8104

[startup+1.50151 s]
/proc/loadavg: 0.08 0.02 0.01 2/68 9073
/proc/meminfo: memFree=1412992/2055920 swapFree=4192812/4192956
[pid=9067] ppid=9065 vsize=9640 CPUtime=1.48
/proc/9067/stat : 9067 (pcs.small) R 9065 9067 9030 0 -1 4194304 2380 824 0 0 147 1 0 0 25 0 1 0 56486951 9871360 1535 996147200 134512640 135095119 4294956304 18446744073709551615 8873595 0 0 4096 0 0 0 0 17 1 0 0
/proc/9067/statm: 2410 1535 378 142 0 1364 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 9640

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

[startup+1.70153 s]
/proc/loadavg: 0.08 0.02 0.01 2/68 9073
/proc/meminfo: memFree=1412992/2055920 swapFree=4192812/4192956
[pid=9067] ppid=9065 vsize=9768 CPUtime=1.68
/proc/9067/stat : 9067 (pcs.small) R 9065 9067 9030 0 -1 4194304 2460 824 0 0 167 1 0 0 25 0 1 0 56486951 10002432 1615 996147200 134512640 135095119 4294956304 18446744073709551615 8873595 0 0 4096 0 0 0 0 17 1 0 0
/proc/9067/statm: 2442 1615 378 142 0 1396 0
Current children cumulated CPU time (s) 1.68
Current children cumulated vsize (KiB) 9768

[startup+1.80154 s]
/proc/loadavg: 0.08 0.02 0.01 2/68 9073
/proc/meminfo: memFree=1412992/2055920 swapFree=4192812/4192956
[pid=9067] ppid=9065 vsize=9896 CPUtime=1.78
/proc/9067/stat : 9067 (pcs.small) R 9065 9067 9030 0 -1 4194304 2499 824 0 0 177 1 0 0 25 0 1 0 56486951 10133504 1654 996147200 134512640 135095119 4294956304 18446744073709551615 134617027 0 0 4096 0 0 0 0 17 1 0 0
/proc/9067/statm: 2474 1654 378 142 0 1428 0
Current children cumulated CPU time (s) 1.78
Current children cumulated vsize (KiB) 9896

Child status: 0
Real time (s): 1.8611
CPU time (s): 1.85972
CPU user time (s): 1.83372
CPU system time (s): 0.025996
CPU usage (%): 99.9257
Max. virtual memory (cumulated for all children) (KiB): 9896

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.83372
system time used= 0.025996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3348
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= 31
involuntary context switches= 25

runsolver used 0.004999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node21 at 2009-07-15 23:43:25
IDJOB=2057007
IDBENCH=53326
IDSOLVER=733
FILE ID=node21/2057007-1247694204
PBS_JOBID= 9521267
Free space on /tmp= 66328 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/QCP-15/normalized-qcp-15-120-13_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2057007-1247694204/watcher-2057007-1247694204 -o /tmp/evaluation-result-2057007-1247694204/solver-2057007-1247694204 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 562274529 HOME/instance-2057007-1247694204.xml

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

MD5SUM BENCH= e163336b7fd297141773c350ceb1e4d5
RANDOM SEED=562274529

node21.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		: 3000.240
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		: 3000.240
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:       1417512 kB
Buffers:         73988 kB
Cached:         468652 kB
SwapCached:          0 kB
Active:         192252 kB
Inactive:       365660 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1417512 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1904 kB
Writeback:           0 kB
Mapped:          25048 kB
Slab:            66260 kB
Committed_AS:   425068 kB
PageTables:       1584 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= 66324 MiB
End job on node21 at 2009-07-15 23:43:27