Trace number 2073409

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 0.78688 0.7929

DiagnosticValue
ASSIGNMENTS0

General information on the benchmark

Namecsp/bddSmall/
normalized-bdd-21-133-18-78-3_ext.xml
MD5SUMdecd578994f6f52b0715a622f43e7b70
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 benchmark0.779881
Satisfiable
(Un)Satisfiability was proved
Number of variables21
Number of constraints133
Maximum constraint arity18
Maximum domain size2
Number of constraints which are defined in extension133
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.01/0.04	c small-domain mode
0.01/0.05	c Seed is 210883114
0.01/0.05	c Constructing HOME/instance-2073409-1247711824.xml  with 133 constraints
0.68/0.77	c Solving 0 backtracks
0.68/0.79	s SATISFIABLE
0.68/0.79	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, 
0.68/0.79	v 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
0.68/0.79	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-2073409-1247711824/watcher-2073409-1247711824 -o /tmp/evaluation-result-2073409-1247711824/solver-2073409-1247711824 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 210883114 HOME/instance-2073409-1247711824.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: 1.92 2.00 2.00 4/82 12664
/proc/meminfo: memFree=1472376/2055920 swapFree=4192812/4192956
[pid=12664] ppid=12662 vsize=5356 CPUtime=0
/proc/12664/stat : 12664 (pcssolve) R 12662 12664 10627 0 -1 4194304 290 0 0 0 0 0 0 0 21 0 1 0 58249477 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 252429527711 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/12664/statm: 1339 241 200 169 0 50 0
[pid=12665] ppid=12664 vsize=3676 CPUtime=0
/proc/12665/stat : 12665 (fgrep) R 12664 12664 10627 0 -1 4194304 147 0 0 0 0 0 0 0 22 0 1 0 58249478 3764224 114 996147200 4194304 4274172 548682068976 18446744073709551615 4208903 0 0 4096 0 0 0 0 17 1 0 0
/proc/12665/statm: 919 114 86 19 0 43 0
[pid=12666] ppid=12664 vsize=5356 CPUtime=0
/proc/12666/stat : 12666 (pcssolve) R 12664 12664 10627 0 -1 4194368 0 0 0 0 0 0 0 0 21 0 1 0 58249478 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 252429527711 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/12666/statm: 1339 241 200 169 0 50 0

[startup+0.0476711 s]
/proc/loadavg: 1.92 2.00 2.00 4/82 12664
/proc/meminfo: memFree=1472376/2055920 swapFree=4192812/4192956
[pid=12664] ppid=12662 vsize=5356 CPUtime=0.01
/proc/12664/stat : 12664 (pcssolve) S 12662 12664 10627 0 -1 4194304 367 2672 0 0 0 0 0 1 22 0 1 0 58249477 5484544 243 996147200 4194304 4889804 548682068800 18446744073709551615 252429525828 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/12664/statm: 1339 243 202 169 0 50 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 5356

[startup+0.101669 s]
/proc/loadavg: 1.92 2.00 2.00 4/82 12664
/proc/meminfo: memFree=1472376/2055920 swapFree=4192812/4192956
[pid=12664] ppid=12662 vsize=5976 CPUtime=0.08
/proc/12664/stat : 12664 (pcs.small) R 12662 12664 10627 0 -1 4194304 1054 3857 0 0 5 0 1 2 22 0 1 0 58249477 6119424 663 996147200 134512640 135095119 4294956304 18446744073709551615 10161758 0 0 4096 0 0 0 0 17 1 0 0
/proc/12664/statm: 1494 663 361 142 0 448 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5976

[startup+0.301691 s]
/proc/loadavg: 1.92 2.00 2.00 4/82 12664
/proc/meminfo: memFree=1472376/2055920 swapFree=4192812/4192956
[pid=12664] ppid=12662 vsize=9540 CPUtime=0.27
/proc/12664/stat : 12664 (pcs.small) R 12662 12664 10627 0 -1 4194304 2091 3857 0 0 24 0 1 2 23 0 1 0 58249477 9768960 1700 996147200 134512640 135095119 4294956304 18446744073709551615 134681660 0 0 4096 0 0 0 0 17 1 0 0
/proc/12664/statm: 2385 1700 362 142 0 1339 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 9540

[startup+0.701729 s]
/proc/loadavg: 1.92 2.00 2.00 4/82 12664
/proc/meminfo: memFree=1472376/2055920 swapFree=4192812/4192956
[pid=12664] ppid=12662 vsize=14428 CPUtime=0.68
/proc/12664/stat : 12664 (pcs.small) R 12662 12664 10627 0 -1 4194304 4043 3857 0 0 64 1 1 2 25 0 1 0 58249477 14774272 2907 996147200 134512640 135095119 4294956304 18446744073709551615 10161791 0 0 4096 0 0 0 0 17 1 0 0
/proc/12664/statm: 3607 2907 375 142 0 2561 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 14428

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

Child status: 0
Real time (s): 0.7929
CPU time (s): 0.78688
CPU user time (s): 0.747886
CPU system time (s): 0.038994
CPU usage (%): 99.2408
Max. virtual memory (cumulated for all children) (KiB): 14428

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.747886
system time used= 0.038994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8006
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= 45

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node12 at 2009-07-16 04:37:05
IDJOB=2073409
IDBENCH=55976
IDSOLVER=734
FILE ID=node12/2073409-1247711824
PBS_JOBID= 9521380
Free space on /tmp= 66268 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/bddSmall/normalized-bdd-21-133-18-78-3_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2073409-1247711824/watcher-2073409-1247711824 -o /tmp/evaluation-result-2073409-1247711824/solver-2073409-1247711824 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 210883114 HOME/instance-2073409-1247711824.xml

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

MD5SUM BENCH= decd578994f6f52b0715a622f43e7b70
RANDOM SEED=210883114

node12.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:       1472856 kB
Buffers:         76380 kB
Cached:         372148 kB
SwapCached:          0 kB
Active:         128496 kB
Inactive:       373156 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1472856 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3872 kB
Writeback:           0 kB
Mapped:          73548 kB
Slab:            66584 kB
Committed_AS:   578984 kB
PageTables:       1892 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= 66264 MiB
End job on node12 at 2009-07-16 04:37:05