Trace number 2064432

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 0.3.2SAT 0.326949 0.333348

DiagnosticValue
ASSIGNMENTS0

General information on the benchmark

Namecsp/bddLarge/
normalized-bdd-21-2713-15-79-24_ext.xml
MD5SUM9ba8aee6934293b41abce7daa463ddc3
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.326949
Satisfiable
(Un)Satisfiability was proved
Number of variables21
Number of constraints2713
Maximum constraint arity15
Maximum domain size2
Number of constraints which are defined in extension2713
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.02	c small-domain mode
0.00/0.04	c Seed is 205930378
0.00/0.04	c Constructing HOME/instance-2064432-1247696121.xml  with 2713 constraints
0.18/0.20	c Solving 0 backtracks
0.28/0.33	s SATISFIABLE
0.28/0.33	c V0=0, V1=0, V2=0, V3=0, V4=0, V5=0, V6=0, V7=0, V8=0, V9=0, V10=0, V11=0, V12=0, V13=0, V14=0, V15=0, V16=0, V17=0, V18=0, V19=0, V20=0, 
0.28/0.33	v 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0.28/0.33	d ASSIGNMENTS 0

Verifier Data 

OK

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2064432-1247696121/watcher-2064432-1247696121 -o /tmp/evaluation-result-2064432-1247696121/solver-2064432-1247696121 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 205930378 HOME/instance-2064432-1247696121.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: 1.97 1.96 1.69 4/72 13800
/proc/meminfo: memFree=1530840/2055920 swapFree=4192812/4192956
[pid=13800] ppid=13798 vsize=5356 CPUtime=0
/proc/13800/stat : 13800 (pcssolve) R 13798 13800 13058 0 -1 4194304 268 0 0 0 0 0 0 0 20 0 1 0 56679844 5484544 236 996147200 4194304 4889804 548682068800 18446744073709551615 259353147161 0 0 4100 65536 0 0 0 17 1 0 0
/proc/13800/statm: 1339 236 197 169 0 50 0

[startup+0.063823 s]
/proc/loadavg: 1.97 1.96 1.69 4/72 13800
/proc/meminfo: memFree=1530840/2055920 swapFree=4192812/4192956
[pid=13800] ppid=13798 vsize=5180 CPUtime=0.03
/proc/13800/stat : 13800 (pcs.small) R 13798 13800 13058 0 -1 4194304 1000 1169 0 0 3 0 0 0 18 0 1 0 56679844 5304320 609 996147200 134512640 135095119 4294956304 18446744073709551615 134934338 0 0 4096 0 0 0 0 17 1 0 0
/proc/13800/statm: 1295 609 373 142 0 249 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 5180

[startup+0.101826 s]
/proc/loadavg: 1.97 1.96 1.69 4/72 13800
/proc/meminfo: memFree=1530840/2055920 swapFree=4192812/4192956
[pid=13800] ppid=13798 vsize=5624 CPUtime=0.07
/proc/13800/stat : 13800 (pcs.small) R 13798 13800 13058 0 -1 4194304 1081 1169 0 0 7 0 0 0 18 0 1 0 56679844 5758976 690 996147200 134512640 135095119 4294956304 18446744073709551615 4159314573 0 0 4096 0 0 0 0 17 1 0 0
/proc/13800/statm: 1406 690 378 142 0 360 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5624

[startup+0.301856 s]
/proc/loadavg: 1.97 1.96 1.69 4/72 13800
/proc/meminfo: memFree=1530840/2055920 swapFree=4192812/4192956
[pid=13800] ppid=13798 vsize=7604 CPUtime=0.28
/proc/13800/stat : 13800 (pcs.small) R 13798 13800 13058 0 -1 4194304 1639 1169 0 0 27 1 0 0 19 0 1 0 56679844 7786496 1248 996147200 134512640 135095119 4294956304 18446744073709551615 134927303 0 0 4096 0 0 0 0 17 1 0 0
/proc/13800/statm: 1901 1248 389 142 0 855 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 7604

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

Child status: 0
Real time (s): 0.333348
CPU time (s): 0.326949
CPU user time (s): 0.305953
CPU system time (s): 0.020996
CPU usage (%): 98.0804
Max. virtual memory (cumulated for all children) (KiB): 7604

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.305953
system time used= 0.020996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2812
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= 22
involuntary context switches= 18

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node1 at 2009-07-16 00:15:21
IDJOB=2064432
IDBENCH=54153
IDSOLVER=733
FILE ID=node1/2064432-1247696121
PBS_JOBID= 9521307
Free space on /tmp= 66384 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/bddLarge/normalized-bdd-21-2713-15-79-24_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2064432-1247696121/watcher-2064432-1247696121 -o /tmp/evaluation-result-2064432-1247696121/solver-2064432-1247696121 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 205930378 HOME/instance-2064432-1247696121.xml

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

MD5SUM BENCH= 9ba8aee6934293b41abce7daa463ddc3
RANDOM SEED=205930378

node1.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		: 3000.216
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		: 3000.216
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:       1531320 kB
Buffers:         72184 kB
Cached:         360296 kB
SwapCached:          0 kB
Active:         166476 kB
Inactive:       292148 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1531320 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2224 kB
Writeback:           0 kB
Mapped:          37660 kB
Slab:            51420 kB
Committed_AS:   652652 kB
PageTables:       1808 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= 66380 MiB
End job on node1 at 2009-07-16 00:15:21