Trace number 2057096

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 0.083987 0.0847159

DiagnosticValue
ASSIGNMENTS8

General information on the benchmark

Namecsp/QCP-15/
normalized-qcp-15-120-3_ext.xml
MD5SUM151db26b5ee736c201ace8bd7a2bd6fd
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.083987
Satisfiable
(Un)Satisfiability was proved
Number of variables225
Number of constraints2520
Maximum constraint arity2
Maximum domain size15
Number of constraints which are defined in extension2520
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.00/0.01	c Seed is 2107805524
0.00/0.01	c Constructing HOME/instance-2057096-1247694214.xml  with 14280 constraints
0.01/0.06	c Solving 8 backtracks
0.01/0.08	s SATISFIABLE
0.01/0.08	c V0=14, V1=1, V2=11, V3=3, V4=10, V5=9, V6=13, V7=8, V8=0, V9=4, V10=5, V11=6, V12=7, V13=12, V14=2, V15=7, V16=0, V17=14, V18=10, V19=1, V20=6, V21=11, V22=13, V23=9, V24=12, V25=8, V26=3, V27=5, V28=2, V29=4, V30=12, V31=9, V32=13, V33=14, V34=0, V35=8, V36=5, V37=4, V38=3, V39=2, V40=1, V41=7, V42=11, V43=6, V44=10, V45=13, V46=4, V47=7, V48=1, V49=14, V50=3, V51=12, V52=10, V53=2, V54=8, V55=0, V56=9, V57=6, V58=5, V59=11, V60=11, V61=10, V62=3, V63=6, V64=4, V65=14, V66=2, V67=12, V68=7, V69=1, V70=9, V71=8, V72=0, V73=13, V74=5, V75=3, V76=7, V77=5, V78=4, V79=6, V80=1, V81=8, V82=9, V83=12, V84=13, V85=2, V86=11, V87=14, V88=10, V89=0, V90=2, V91=3, V92=8, V93=0, V94=13, V95=5, V96=4, V97=1, V98=14, V99=7, V100=10, V101=12, V102=9, V103=11, V104=6, V105=5, V106=12, V107=1, V108=7, V109=11, V110=4, V111=0, V112=3, V113=13, V114=6, V115=14, V116=10, V117=2, V118=9, V119=8, V120=6, V121=13, V122=4, V123=2, V124=5, V125=0, V126=9, V127=14, V128=11, V129=10, V130=12, V131=1, V132=8, V133=3, V134=7, V135=0, V136=11, V137=10, V138=12, V139=3, V140=13, V141=14, V142=6, V143=4, V144=5, V145=7, V146=2, V147=1, V148=8, V149=9, V150=8, V151=5, V152=6, V153=11, V154=2, V155=7, V156=3, V157=0, V158=10, V159=9, V160=13, V161=4, V162=12, V163=14, V164=1, V165=4, V166=8, V167=12, V168=5, V169=9, V170=2, V171=10, V172=7, V173=1, V174=11, V175=6, V176=14, V177=3, V178=0, V179=13, V180=10, V181=6, V182=2, V183=9, V184=12, V185=11, V186=7, V187=5, V188=8, V189=0, V190=3, V191=13, V192=4, V193=1, V194=14, V195=9, V196=14, V197=0, V198=8, V199=7, V200=10, V201=1, V202=2, V203=6, V204=3, V205=11, V206=5, V207=13, V208=4, V209=12, V210=1, V211=2, V212=9, V213=13, V214=8, V215=12, V216=6, V217=11, V218=5, V219=14, V220=4, V221=0, V222=10, V223=7, V224=3, 
0.01/0.08	v 14 1 11 3 10 9 13 8 0 4 5 6 7 12 2 7 0 14 10 1 6 11 13 9 12 8 3 5 2 4 12 9 13 14 0 8 5 4 3 2 1 7 11 6 10 13 4 7 1 14 3 12 10 2 8 0 9 6 5 11 11 10 3 6 4 14 2 12 7 1 9 8 0 13 5 3 7 5 4 6 1 8 9 12 13 2 11 14 10 0 2 3 8 0 13 5 4 1 14 7 10 12 9 11 6 5 12 1 7 11 4 0 3 13 6 14 10 2 9 8 6 13 4 2 5 0 9 14 11 10 12 1 8 3 7 0 11 10 12 3 13 14 6 4 5 7 2 1 8 9 8 5 6 11 2 7 3 0 10 9 13 4 12 14 1 4 8 12 5 9 2 10 7 1 11 6 14 3 0 13 10 6 2 9 12 11 7 5 8 0 3 13 4 1 14 9 14 0 8 7 10 1 2 6 3 11 5 13 4 12 1 2 9 13 8 12 6 11 5 14 4 0 10 7 3 
0.01/0.08	d ASSIGNMENTS 8

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-2057096-1247694214/watcher-2057096-1247694214 -o /tmp/evaluation-result-2057096-1247694214/solver-2057096-1247694214 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 2107805524 HOME/instance-2057096-1247694214.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: 0.00 0.00 0.00 3/68 8865
/proc/meminfo: memFree=1058488/2055920 swapFree=4192812/4192956
[pid=8865] ppid=8863 vsize=5356 CPUtime=0
/proc/8865/stat : 8865 (pcssolve) S 8863 8865 8799 0 -1 4194304 305 0 0 0 0 0 0 0 19 0 1 0 56488682 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 228706542404 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/8865/statm: 1339 242 201 169 0 50 0
[pid=8866] ppid=8865 vsize=3544 CPUtime=0
/proc/8866/stat : 8866 (fgrep) R 8865 8865 8799 0 -1 4194304 104 0 0 0 0 0 0 0 20 0 1 0 56488682 3629056 72 996147200 4194304 4274172 548682068976 18446744073709551615 228706975044 0 0 4096 0 0 0 0 17 0 0 0
/proc/8866/statm: 886 86 69 19 0 10 0
[pid=8867] ppid=8865 vsize=200 CPUtime=0
/proc/8867/stat : 8867 (grep) R 8865 8865 8799 0 -1 4194304 46 0 0 0 0 0 0 0 21 0 1 0 56488682 204800 24 996147200 4194304 4274172 548682069040 18446744073709551615 228703925525 0 0 4096 0 0 0 0 17 0 0 0
/proc/8867/statm: 50 24 17 19 0 4 0

[startup+0.034392 s]
/proc/loadavg: 0.00 0.00 0.00 3/68 8865
/proc/meminfo: memFree=1058488/2055920 swapFree=4192812/4192956
[pid=8865] ppid=8863 vsize=5192 CPUtime=0.01
/proc/8865/stat : 8865 (pcs.small) R 8863 8865 8799 0 -1 4194304 997 824 0 0 1 0 0 0 18 0 1 0 56488682 5316608 573 996147200 134512640 135095119 4294956304 18446744073709551615 134706684 0 0 4096 0 0 0 0 17 0 0 0
/proc/8865/statm: 1298 573 367 142 0 252 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 5192

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

[startup+0.034392 s]
/proc/loadavg: 0.00 0.00 0.00 3/68 8865
/proc/meminfo: memFree=1058488/2055920 swapFree=4192812/4192956
[pid=8865] ppid=8863 vsize=5192 CPUtime=0.01
/proc/8865/stat : 8865 (pcs.small) R 8863 8865 8799 0 -1 4194304 997 824 0 0 1 0 0 0 18 0 1 0 56488682 5316608 573 996147200 134512640 135095119 4294956304 18446744073709551615 134706684 0 0 4096 0 0 0 0 17 0 0 0
/proc/8865/statm: 1298 573 367 142 0 252 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 5192

Child status: 0
Real time (s): 0.0847159
CPU time (s): 0.083987
CPU user time (s): 0.071989
CPU system time (s): 0.011998
CPU usage (%): 99.1396
Max. virtual memory (cumulated for all children) (KiB): 5192

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.071989
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2215
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= 31
involuntary context switches= 14

runsolver used 0.003999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node8 at 2009-07-15 23:43:34
IDJOB=2057096
IDBENCH=53334
IDSOLVER=734
FILE ID=node8/2057096-1247694214
PBS_JOBID= 9521292
Free space on /tmp= 66096 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/QCP-15/normalized-qcp-15-120-3_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2057096-1247694214/watcher-2057096-1247694214 -o /tmp/evaluation-result-2057096-1247694214/solver-2057096-1247694214 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 2107805524 HOME/instance-2057096-1247694214.xml

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

MD5SUM BENCH= 151db26b5ee736c201ace8bd7a2bd6fd
RANDOM SEED=2107805524

node8.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		: 3000.213
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		: 3000.213
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1058976 kB
Buffers:         75108 kB
Cached:         822764 kB
SwapCached:          0 kB
Active:         259880 kB
Inactive:       654204 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1058976 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1904 kB
Writeback:           0 kB
Mapped:          25928 kB
Slab:            68336 kB
Committed_AS:   423336 kB
PageTables:       1576 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66092 MiB
End job on node8 at 2009-07-15 23:43:34