Trace number 2073441

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 0.897862 0.908502

DiagnosticValue
ASSIGNMENTS16

General information on the benchmark

Namecsp/bddSmall/
normalized-bdd-21-133-18-78-11_ext.xml
MD5SUMe9b7d83c81d771feb950258c9be6fc61
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 benchmark0.871866
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 

0.00/0.04	c small-domain mode
0.00/0.05	c Seed is 1206076803
0.00/0.05	c Constructing HOME/instance-2073441-1247711850.xml  with 133 constraints
0.67/0.76	c Solving 16 backtracks 1 restarts
0.87/0.90	s SATISFIABLE
0.87/0.90	c V0=1, V1=1, V2=1, V3=1, V4=1, V5=1, V6=1, V7=1, V8=1, V9=1, V10=1, V11=1, V12=1, V13=1, V14=1, V15=1, V16=1, V17=1, V18=1, V19=1, V20=1, 
0.87/0.90	v 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 
0.87/0.90	d ASSIGNMENTS 16

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-2073441-1247711850/watcher-2073441-1247711850 -o /tmp/evaluation-result-2073441-1247711850/solver-2073441-1247711850 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1206076803 HOME/instance-2073441-1247711850.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: 2.00 2.02 2.00 4/73 12526
/proc/meminfo: memFree=1496976/2055920 swapFree=4192812/4192956
[pid=12526] ppid=12524 vsize=5356 CPUtime=0
/proc/12526/stat : 12526 (pcssolve) R 12524 12526 12423 0 -1 4194304 273 0 0 0 0 0 0 0 20 0 1 0 58248304 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 250968861343 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/12526/statm: 1339 241 200 169 0 50 0
[pid=12527] ppid=12526 vsize=5356 CPUtime=0
/proc/12527/stat : 12527 (pcssolve) R 12526 12526 12423 0 -1 4194368 0 0 0 0 0 0 0 0 20 0 1 0 58248304 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 250968861343 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/12527/statm: 1339 241 200 169 0 50 0

[startup+0.0293941 s]
/proc/loadavg: 2.00 2.02 2.00 4/73 12526
/proc/meminfo: memFree=1496976/2055920 swapFree=4192812/4192956
[pid=12526] ppid=12524 vsize=5356 CPUtime=0
/proc/12526/stat : 12526 (pcssolve) S 12524 12526 12423 0 -1 4194304 339 1327 0 0 0 0 0 0 21 0 1 0 58248304 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 250968859460 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/12526/statm: 1339 242 201 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.102392 s]
/proc/loadavg: 2.00 2.02 2.00 4/73 12526
/proc/meminfo: memFree=1496976/2055920 swapFree=4192812/4192956
[pid=12526] ppid=12524 vsize=5972 CPUtime=0.08
/proc/12526/stat : 12526 (pcs.small) R 12524 12526 12423 0 -1 4194304 1062 3851 0 0 5 0 2 1 22 0 1 0 58248304 6115328 671 996147200 134512640 135095119 4294956304 18446744073709551615 134653696 0 0 4096 0 0 0 0 17 1 0 0
/proc/12526/statm: 1493 671 361 142 0 447 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5972

[startup+0.301415 s]
/proc/loadavg: 2.00 2.02 2.00 4/73 12526
/proc/meminfo: memFree=1496976/2055920 swapFree=4192812/4192956
[pid=12526] ppid=12524 vsize=9536 CPUtime=0.27
/proc/12526/stat : 12526 (pcs.small) R 12524 12526 12423 0 -1 4194304 2085 3851 0 0 24 0 2 1 23 0 1 0 58248304 9764864 1694 996147200 134512640 135095119 4294956304 18446744073709551615 134681660 0 0 4096 0 0 0 0 17 1 0 0
/proc/12526/statm: 2384 1694 362 142 0 1338 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 9536

[startup+0.702452 s]
/proc/loadavg: 2.00 2.02 2.00 4/73 12526
/proc/meminfo: memFree=1496976/2055920 swapFree=4192812/4192956
[pid=12526] ppid=12524 vsize=14576 CPUtime=0.67
/proc/12526/stat : 12526 (pcs.small) R 12524 12526 12423 0 -1 4194304 4086 3851 0 0 63 1 2 1 25 0 1 0 58248304 14925824 2939 996147200 134512640 135095119 4294956304 18446744073709551615 134945098 0 0 4096 0 0 0 0 17 1 0 0
/proc/12526/statm: 3644 2939 375 142 0 2598 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 14576

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

[startup+0.902473 s]
/proc/loadavg: 2.00 2.02 2.00 4/73 12526
/proc/meminfo: memFree=1496976/2055920 swapFree=4192812/4192956
[pid=12526] ppid=12524 vsize=13680 CPUtime=0.87
/proc/12526/stat : 12526 (pcs.small) R 12524 12526 12423 0 -1 4194304 4102 3851 0 0 83 1 2 1 25 0 1 0 58248304 14008320 2757 996147200 134512640 135095119 4294956304 18446744073709551615 134918211 0 0 4096 0 0 0 0 17 1 0 0
/proc/12526/statm: 3420 2757 389 142 0 2374 0
Current children cumulated CPU time (s) 0.87
Current children cumulated vsize (KiB) 13680

Child status: 0
Real time (s): 0.908502
CPU time (s): 0.897862
CPU user time (s): 0.861868
CPU system time (s): 0.035994
CPU usage (%): 98.8288
Max. virtual memory (cumulated for all children) (KiB): 14576

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.861868
system time used= 0.035994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7956
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= 23
involuntary context switches= 32

runsolver used 0.002999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node56 at 2009-07-16 04:37:30
IDJOB=2073441
IDBENCH=55979
IDSOLVER=733
FILE ID=node56/2073441-1247711850
PBS_JOBID= 9521394
Free space on /tmp= 103076 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/bddSmall/normalized-bdd-21-133-18-78-11_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2073441-1247711850/watcher-2073441-1247711850 -o /tmp/evaluation-result-2073441-1247711850/solver-2073441-1247711850 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1206076803 HOME/instance-2073441-1247711850.xml

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

MD5SUM BENCH= e9b7d83c81d771feb950258c9be6fc61
RANDOM SEED=1206076803

node56.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		: 3000.209
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		: 3000.209
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:       1497456 kB
Buffers:         81504 kB
Cached:         345740 kB
SwapCached:          0 kB
Active:         222376 kB
Inactive:       254928 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1497456 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3764 kB
Writeback:           0 kB
Mapped:          60592 kB
Slab:            66384 kB
Committed_AS:   485252 kB
PageTables:       1876 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= 103076 MiB
End job on node56 at 2009-07-16 04:37:31