Trace number 2090502

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 1.05084 1.06002

DiagnosticValue
ASSIGNMENTS3924

General information on the benchmark

Namecsp/rand-2-30-15-fcd/
normalized-rand-2-30-15-306-230-fcd-36_ext.xml
MD5SUM55b642456bde7433cd49098dcfd810a9
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 benchmark0.332949
Satisfiable
(Un)Satisfiability was proved
Number of variables30
Number of constraints223
Maximum constraint arity2
Maximum domain size15
Number of constraints which are defined in extension223
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 316470716
0.00/0.01	c Constructing HOME/instance-2090502-1247731031.xml  with 3281 constraints
0.00/0.05	c Solving 3924 backtracks 11 restarts
0.98/1.05	s SATISFIABLE
0.98/1.05	c V0=4, V1=10, V2=11, V3=4, V4=3, V5=10, V6=14, V7=11, V8=2, V9=11, V10=6, V11=11, V12=1, V13=13, V14=12, V15=14, V16=9, V17=8, V18=7, V19=11, V20=9, V21=4, V22=11, V23=5, V24=14, V25=5, V26=14, V27=3, V28=13, V29=12, 
0.98/1.05	v 4 10 11 4 3 10 14 11 2 11 6 11 1 13 12 14 9 8 7 11 9 4 11 5 14 5 14 3 13 12 
0.98/1.05	d ASSIGNMENTS 3924

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-2090502-1247731031/watcher-2090502-1247731031 -o /tmp/evaluation-result-2090502-1247731031/solver-2090502-1247731031 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 316470716 HOME/instance-2090502-1247731031.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 2.00 2.00 4/73 18183
/proc/meminfo: memFree=1441224/2055920 swapFree=4192812/4192956
[pid=18183] ppid=18181 vsize=5356 CPUtime=0
/proc/18183/stat : 18183 (pcssolve) R 18181 18183 17224 0 -1 4194304 290 0 0 0 0 0 0 0 21 0 1 0 60168481 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 265674091167 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/18183/statm: 1339 241 200 169 0 50 0
[pid=18184] ppid=18183 vsize=0 CPUtime=0
/proc/18184/stat : 18184 (fgrep) Z 18183 18183 17224 0 -1 4194316 155 0 0 0 0 0 0 0 18 0 1 0 60168481 0 0 996147200 0 0 0 0 0 0 0 4096 0 18446744071563351923 0 0 17 0 0 0
/proc/18184/statm: 0 0 0 0 0 0 0
[pid=18185] ppid=18183 vsize=5356 CPUtime=0
/proc/18185/stat : 18185 (pcssolve) R 18183 18183 17224 0 -1 4194368 0 0 0 0 0 0 0 0 21 0 1 0 60168481 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 265674091167 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/18185/statm: 1339 241 200 169 0 50 0

[startup+0.0600771 s]
/proc/loadavg: 2.00 2.00 2.00 4/73 18183
/proc/meminfo: memFree=1441224/2055920 swapFree=4192812/4192956
[pid=18183] ppid=18181 vsize=5308 CPUtime=0.03
/proc/18183/stat : 18183 (pcs.small) R 18181 18183 17224 0 -1 4194304 1045 822 0 0 3 0 0 0 25 0 1 0 60168481 5435392 654 996147200 134512640 135095119 4294956304 18446744073709551615 134643026 0 0 4096 0 0 0 0 17 0 0 0
/proc/18183/statm: 1327 654 378 142 0 281 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 5308

[startup+0.101082 s]
/proc/loadavg: 2.00 2.00 2.00 4/73 18183
/proc/meminfo: memFree=1441224/2055920 swapFree=4192812/4192956
[pid=18183] ppid=18181 vsize=5308 CPUtime=0.07
/proc/18183/stat : 18183 (pcs.small) R 18181 18183 17224 0 -1 4194304 1047 822 0 0 7 0 0 0 25 0 1 0 60168481 5435392 656 996147200 134512640 135095119 4294956304 18446744073709551615 134617227 0 0 4096 0 0 0 0 17 0 0 0
/proc/18183/statm: 1327 656 378 142 0 281 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5308

[startup+0.301122 s]
/proc/loadavg: 2.00 2.00 2.00 4/73 18183
/proc/meminfo: memFree=1441224/2055920 swapFree=4192812/4192956
[pid=18183] ppid=18181 vsize=5436 CPUtime=0.27
/proc/18183/stat : 18183 (pcs.small) R 18181 18183 17224 0 -1 4194304 1087 822 0 0 27 0 0 0 25 0 1 0 60168481 5566464 663 996147200 134512640 135095119 4294956304 18446744073709551615 134582120 0 0 4096 0 0 0 0 17 0 0 0
/proc/18183/statm: 1359 663 378 142 0 313 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 5436

[startup+0.701199 s]
/proc/loadavg: 2.00 2.00 2.00 4/73 18183
/proc/meminfo: memFree=1441224/2055920 swapFree=4192812/4192956
[pid=18183] ppid=18181 vsize=5696 CPUtime=0.67
/proc/18183/stat : 18183 (pcs.small) R 18181 18183 17224 0 -1 4194304 1149 822 0 0 67 0 0 0 25 0 1 0 60168481 5832704 725 996147200 134512640 135095119 4294956304 18446744073709551615 134581504 0 0 4096 0 0 0 0 17 0 0 0
/proc/18183/statm: 1424 725 378 142 0 378 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 5696

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

[startup+0.901241 s]
/proc/loadavg: 2.00 2.00 2.00 4/73 18183
/proc/meminfo: memFree=1441224/2055920 swapFree=4192812/4192956
[pid=18183] ppid=18181 vsize=6080 CPUtime=0.88
/proc/18183/stat : 18183 (pcs.small) R 18181 18183 17224 0 -1 4194304 1256 822 0 0 87 1 0 0 25 0 1 0 60168481 6225920 767 996147200 134512640 135095119 4294956304 18446744073709551615 134636924 0 0 4096 0 0 0 0 17 0 0 0
/proc/18183/statm: 1520 767 378 142 0 474 0
Current children cumulated CPU time (s) 0.88
Current children cumulated vsize (KiB) 6080

[startup+1.00126 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 18189
/proc/meminfo: memFree=1439168/2055920 swapFree=4192812/4192956
[pid=18183] ppid=18181 vsize=6080 CPUtime=0.98
/proc/18183/stat : 18183 (pcs.small) R 18181 18183 17224 0 -1 4194304 1278 822 0 0 97 1 0 0 25 0 1 0 60168481 6225920 789 996147200 134512640 135095119 4294956304 18446744073709551615 134615500 0 0 4096 0 0 0 0 17 0 0 0
/proc/18183/statm: 1520 789 378 142 0 474 0
Current children cumulated CPU time (s) 0.98
Current children cumulated vsize (KiB) 6080

Child status: 0
Real time (s): 1.06002
CPU time (s): 1.05084
CPU user time (s): 1.03484
CPU system time (s): 0.015997
CPU usage (%): 99.1343
Max. virtual memory (cumulated for all children) (KiB): 6080

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.03484
system time used= 0.015997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2115
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= 17
involuntary context switches= 39

runsolver used 0.004999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node76 at 2009-07-16 09:57:11
IDJOB=2090502
IDBENCH=59769
IDSOLVER=733
FILE ID=node76/2090502-1247731031
PBS_JOBID= 9521499
Free space on /tmp= 66396 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/rand-2-30-15-fcd/normalized-rand-2-30-15-306-230-fcd-36_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2090502-1247731031/watcher-2090502-1247731031 -o /tmp/evaluation-result-2090502-1247731031/solver-2090502-1247731031 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 316470716 HOME/instance-2090502-1247731031.xml

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

MD5SUM BENCH= 55b642456bde7433cd49098dcfd810a9
RANDOM SEED=316470716

node76.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		: 3000.277
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		: 3000.277
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:       1441640 kB
Buffers:         84220 kB
Cached:         389808 kB
SwapCached:          0 kB
Active:         150892 kB
Inactive:       391964 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1441640 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1820 kB
Writeback:           0 kB
Mapped:          80156 kB
Slab:            56720 kB
Committed_AS:   540148 kB
PageTables:       1904 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= 66396 MiB
End job on node76 at 2009-07-16 09:57:13