Trace number 2087708

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 0.939857 0.952183

DiagnosticValue
ASSIGNMENTS355

General information on the benchmark

Namecsp/os-taillard-7/
normalized-os-taillard-7-105-1.xml
MD5SUMc4277fd2e66b9d6f7ec2190bc23ec546
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.046992
Satisfiable
(Un)Satisfiability was proved
Number of variables49
Number of constraints294
Maximum constraint arity2
Maximum domain size463
Number of constraints which are defined in extension0
Number of constraints which are defined in intension294
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c has big domains
0.00/0.01	c big-domain mode
0.00/0.02	c Seed is 2050742659
0.00/0.02	c Constructing HOME/instance-2087708-1247728260.xml  with 2058 constraints
0.00/0.05	c Solving 355 backtracks 6 restarts
0.87/0.95	s SATISFIABLE
0.87/0.95	c V0=61, V1=314, V2=0, V3=150, V4=379, V5=52, V6=232, V7=97, V8=319, V9=278, V10=432, V11=329, V12=194, V13=5, V14=320, V15=458, V16=0, V17=91, V18=241, V19=148, V20=223, V21=382, V22=278, V23=281, V24=219, V25=126, V26=230, V27=256, V28=7, V29=150, V30=432, V31=91, V32=308, V33=206, V34=401, V35=384, V36=97, V37=223, V38=0, V39=288, V40=432, V41=150, V42=379, V43=151, V44=401, V45=61, V46=0, V47=232, V48=221, 
0.87/0.95	v 61 314 0 150 379 52 232 97 319 278 432 329 194 5 320 458 0 91 241 148 223 382 278 281 219 126 230 256 7 150 432 91 308 206 401 384 97 223 0 288 432 150 379 151 401 61 0 232 221 
0.87/0.95	d ASSIGNMENTS 355

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-2087708-1247728260/watcher-2087708-1247728260 -o /tmp/evaluation-result-2087708-1247728260/solver-2087708-1247728260 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 2050742659 HOME/instance-2087708-1247728260.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: 2.07 2.00 2.00 4/81 17337
/proc/meminfo: memFree=1398232/2055920 swapFree=4192812/4192956
[pid=17337] ppid=17335 vsize=18576 CPUtime=0
/proc/17337/stat : 17337 (runsolver) R 17335 17337 17154 0 -1 4194368 15 0 0 0 0 0 0 0 23 0 1 0 59888745 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 237947645223 0 0 4096 24578 0 0 0 17 1 0 0
/proc/17337/statm: 4644 284 249 26 0 2626 0

[startup+0.019369 s]
/proc/loadavg: 2.07 2.00 2.00 4/81 17337
/proc/meminfo: memFree=1398232/2055920 swapFree=4192812/4192956
[pid=17337] ppid=17335 vsize=4404 CPUtime=0
/proc/17337/stat : 17337 (pcs.big) R 17335 17337 17154 0 -1 4194304 521 657 0 0 0 0 0 0 25 0 1 0 59888745 4509696 164 996147200 134512640 135215973 4294956304 18446744073709551615 11956314 0 0 4096 0 0 0 0 17 1 0 0
/proc/17337/statm: 1101 164 139 171 0 14 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 4404

[startup+0.10138 s]
/proc/loadavg: 2.07 2.00 2.00 4/81 17337
/proc/meminfo: memFree=1398232/2055920 swapFree=4192812/4192956
[pid=17337] ppid=17335 vsize=6152 CPUtime=0.08
/proc/17337/stat : 17337 (pcs.big) R 17335 17337 17154 0 -1 4194304 1247 657 0 0 8 0 0 0 25 0 1 0 59888745 6299648 825 996147200 134512640 135215973 4294956304 18446744073709551615 134590514 0 0 4096 0 0 0 0 17 1 0 0
/proc/17337/statm: 1538 825 406 171 0 463 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 6152

[startup+0.301392 s]
/proc/loadavg: 2.07 2.00 2.00 4/81 17337
/proc/meminfo: memFree=1398232/2055920 swapFree=4192812/4192956
[pid=17337] ppid=17335 vsize=6284 CPUtime=0.28
/proc/17337/stat : 17337 (pcs.big) R 17335 17337 17154 0 -1 4194304 1268 657 0 0 28 0 0 0 25 0 1 0 59888745 6434816 846 996147200 134512640 135215973 4294956304 18446744073709551615 134592589 0 0 4096 0 0 0 0 17 1 0 0
/proc/17337/statm: 1571 846 406 171 0 496 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6284

[startup+0.701427 s]
/proc/loadavg: 2.07 2.00 2.00 4/81 17337
/proc/meminfo: memFree=1398232/2055920 swapFree=4192812/4192956
[pid=17337] ppid=17335 vsize=6704 CPUtime=0.67
/proc/17337/stat : 17337 (pcs.big) R 17335 17337 17154 0 -1 4194304 1357 657 0 0 67 0 0 0 25 0 1 0 59888745 6864896 935 996147200 134512640 135215973 4294956304 18446744073709551615 134585922 0 0 4096 0 0 0 0 17 1 0 0
/proc/17337/statm: 1676 935 406 171 0 601 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6704

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

[startup+0.901444 s]
/proc/loadavg: 2.07 2.00 2.00 4/81 17337
/proc/meminfo: memFree=1398232/2055920 swapFree=4192812/4192956
[pid=17337] ppid=17335 vsize=6836 CPUtime=0.87
/proc/17337/stat : 17337 (pcs.big) R 17335 17337 17154 0 -1 4194304 1415 657 0 0 87 0 0 0 25 0 1 0 59888745 7000064 993 996147200 134512640 135215973 4294956304 18446744073709551615 134648559 0 0 4096 0 0 0 0 17 1 0 0
/proc/17337/statm: 1709 993 406 171 0 634 0
Current children cumulated CPU time (s) 0.87
Current children cumulated vsize (KiB) 6836

Child status: 0
Real time (s): 0.952183
CPU time (s): 0.939857
CPU user time (s): 0.926859
CPU system time (s): 0.012998
CPU usage (%): 98.7055
Max. virtual memory (cumulated for all children) (KiB): 6836

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.926859
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2105
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= 18
involuntary context switches= 49

runsolver used 0.001999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node69 at 2009-07-16 09:11:00
IDJOB=2087708
IDBENCH=58783
IDSOLVER=733
FILE ID=node69/2087708-1247728260
PBS_JOBID= 9521652
Free space on /tmp= 66420 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/os-taillard-7/normalized-os-taillard-7-105-1.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2087708-1247728260/watcher-2087708-1247728260 -o /tmp/evaluation-result-2087708-1247728260/solver-2087708-1247728260 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 2050742659 HOME/instance-2087708-1247728260.xml

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

MD5SUM BENCH= c4277fd2e66b9d6f7ec2190bc23ec546
RANDOM SEED=2050742659

node69.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		: 3000.211
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		: 3000.211
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:       1398712 kB
Buffers:         87644 kB
Cached:         445272 kB
SwapCached:          0 kB
Active:         163660 kB
Inactive:       412744 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1398712 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1768 kB
Writeback:           0 kB
Mapped:          63960 kB
Slab:            65836 kB
Committed_AS:   614780 kB
PageTables:       2016 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= 66416 MiB
End job on node69 at 2009-07-16 09:11:01