Trace number 2064235

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-restart 0.3.2SAT 0.341947 0.346519

DiagnosticValue
ASSIGNMENTS0

General information on the benchmark

Namecsp/bddLarge/
normalized-bdd-21-2713-15-79-5_ext.xml
MD5SUM913b73e52caa1aa69c2e6b17aebbe21b
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 benchmark0.340947
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
0.17/0.22	c Seed is 1835156195
0.17/0.22	c Constructing HOME/instance-2064235-1247696077.xml  with 2713 constraints
0.17/0.22	c Solving 0 backtracks
0.27/0.34	s SATISFIABLE
0.27/0.34	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, 
0.27/0.34	v 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0.27/0.34	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-2064235-1247696077/watcher-2064235-1247696077 -o /tmp/evaluation-result-2064235-1247696077/solver-2064235-1247696077 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1835156195 HOME/instance-2064235-1247696077.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: 2.01 1.97 1.69 4/72 8031
/proc/meminfo: memFree=1283856/2055920 swapFree=4192812/4192956
[pid=8031] ppid=8029 vsize=18576 CPUtime=0
/proc/8031/stat : 8031 (runsolver) R 8029 8031 7397 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 56670513 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 227607637287 0 0 4096 24578 0 0 0 17 1 0 0
/proc/8031/statm: 4644 284 249 26 0 2626 0

[startup+0.0801759 s]
/proc/loadavg: 2.01 1.97 1.69 4/72 8031
/proc/meminfo: memFree=1283856/2055920 swapFree=4192812/4192956
[pid=8031] ppid=8029 vsize=5284 CPUtime=0.05
/proc/8031/stat : 8031 (pcs.small) R 8029 8031 7397 0 -1 4194304 1043 1169 0 0 5 0 0 0 18 0 1 0 56670513 5410816 652 996147200 134512640 135095119 4294956304 18446744073709551615 134943823 0 0 4096 0 0 0 0 17 1 0 0
/proc/8031/statm: 1321 652 375 142 0 275 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 5284

[startup+0.101176 s]
/proc/loadavg: 2.01 1.97 1.69 4/72 8031
/proc/meminfo: memFree=1283856/2055920 swapFree=4192812/4192956
[pid=8031] ppid=8029 vsize=5580 CPUtime=0.08
/proc/8031/stat : 8031 (pcs.small) R 8029 8031 7397 0 -1 4194304 1071 1169 0 0 7 1 0 0 18 0 1 0 56670513 5713920 680 996147200 134512640 135095119 4294956304 18446744073709551615 134809970 0 0 4096 0 0 0 0 17 1 0 0
/proc/8031/statm: 1395 680 378 142 0 349 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5580

[startup+0.301211 s]
/proc/loadavg: 2.01 1.97 1.69 4/72 8031
/proc/meminfo: memFree=1283856/2055920 swapFree=4192812/4192956
[pid=8031] ppid=8029 vsize=7692 CPUtime=0.27
/proc/8031/stat : 8031 (pcs.small) R 8029 8031 7397 0 -1 4194304 1635 1169 0 0 26 1 0 0 19 0 1 0 56670513 7876608 1244 996147200 134512640 135095119 4294956304 18446744073709551615 134910867 0 0 4096 0 0 0 0 17 1 0 0
/proc/8031/statm: 1923 1244 389 142 0 877 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 7692

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

Child status: 0
Real time (s): 0.346519
CPU time (s): 0.341947
CPU user time (s): 0.314952
CPU system time (s): 0.026995
CPU usage (%): 98.6806
Max. virtual memory (cumulated for all children) (KiB): 7692

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.314952
system time used= 0.026995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2807
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= 17

runsolver used 0.000999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node66 at 2009-07-16 00:14:37
IDJOB=2064235
IDBENCH=54135
IDSOLVER=734
FILE ID=node66/2064235-1247696077
PBS_JOBID= 9521182
Free space on /tmp= 66256 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/bddLarge/normalized-bdd-21-2713-15-79-5_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2064235-1247696077/watcher-2064235-1247696077 -o /tmp/evaluation-result-2064235-1247696077/solver-2064235-1247696077 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1835156195 HOME/instance-2064235-1247696077.xml

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

MD5SUM BENCH= 913b73e52caa1aa69c2e6b17aebbe21b
RANDOM SEED=1835156195

node66.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		: 3000.214
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		: 3000.214
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:       1284336 kB
Buffers:         72336 kB
Cached:         500496 kB
SwapCached:          0 kB
Active:         302820 kB
Inactive:       386208 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1284336 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2552 kB
Writeback:           0 kB
Mapped:         127664 kB
Slab:            67916 kB
Committed_AS:   573976 kB
PageTables:       1920 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= 66256 MiB
End job on node66 at 2009-07-16 00:14:37