Trace number 1123429

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
toulbar2/BTD 2008-06-27OPTIMUM 0.148977 0.156634

General information on the benchmark

Namemaxcsp/pi/pi-20-10-20-t70/
normalized-pi-20-10-20-30-18.xml
MD5SUM1701183b819d6ab7c814435446d14a54
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkMOPT
Best Number of falsified constraints8
Best CPU time to get the best result obtained on this benchmark0.079987
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints53
Maximum constraint arity2
Maximum domain size10
Number of constraints which are defined in extension53
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.03/0.15	o 8
0.03/0.15	v 1 1 1 8 6 4 5 2 4 1 7 2 6 8 1 3 4 1 7 4 
0.03/0.15	s OPTIMUM FOUND
0.03/0.15	v 1 1 1 8 6 4 5 2 4 1 7 2 6 8 1 3 4 1 7 4

Verifier Data (download as text)

OK	8	45
8 unsatisfied constraints, 45 satisfied constraints

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1123429-1216149798/watcher-1123429-1216149798 -o /tmp/evaluation-result-1123429-1216149798/solver-1123429-1216149798 -C 3600 -W 4000 -M 900 --output-limit 1,15 HOME/solverBTD.sh HOME/instance-1123429-1216149798.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 3600 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 3630 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 4000 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.63 2.72 2.71 4/88 24387
/proc/meminfo: memFree=759096/2055920 swapFree=4190156/4192956
[pid=24386] ppid=24384 vsize=5356 CPUtime=0
/proc/24386/stat : 24386 (solverBTD.sh) S 24384 24386 24102 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 71677775 5484544 231 996147200 4194304 4889804 548682068816 18446744073709551615 228774699844 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/24386/statm: 1339 231 192 169 0 50 0
[pid=24387] ppid=24386 vsize=5356 CPUtime=0
/proc/24387/stat : 24387 (solverBTD.sh) R 24386 24386 24102 0 -1 4194368 16 0 0 0 0 0 0 0 21 0 1 0 71677775 5484544 231 996147200 4194304 4889804 548682068816 18446744073709551615 228774702375 0 0 4096 0 0 0 0 17 1 0 0
/proc/24387/statm: 1339 231 192 169 0 50 0

[startup+0.103696 s]
/proc/loadavg: 2.63 2.72 2.71 4/88 24387
/proc/meminfo: memFree=759096/2055920 swapFree=4190156/4192956
[pid=24386] ppid=24384 vsize=5356 CPUtime=0.03
/proc/24386/stat : 24386 (solverBTD.sh) S 24384 24386 24102 0 -1 4194304 388 848 0 0 0 0 1 2 22 0 1 0 71677775 5484544 232 996147200 4194304 4889804 548682068816 18446744073709551615 228774699844 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/24386/statm: 1339 232 192 169 0 50 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 5356

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

[startup+0.103696 s]
/proc/loadavg: 2.63 2.72 2.71 4/88 24387
/proc/meminfo: memFree=759096/2055920 swapFree=4190156/4192956
[pid=24386] ppid=24384 vsize=5356 CPUtime=0.03
/proc/24386/stat : 24386 (solverBTD.sh) S 24384 24386 24102 0 -1 4194304 388 848 0 0 0 0 1 2 22 0 1 0 71677775 5484544 232 996147200 4194304 4889804 548682068816 18446744073709551615 228774699844 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/24386/statm: 1339 232 192 169 0 50 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 5356

Child status: 0
Real time (s): 0.156634
CPU time (s): 0.148977
CPU user time (s): 0.122981
CPU system time (s): 0.025996
CPU usage (%): 95.1115
Max. virtual memory (cumulated for all children) (KiB): 5356

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.122981
system time used= 0.025996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1661
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= 17

runsolver used 0.004999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node74 at 2008-07-15 21:23:18
IDJOB=1123429
IDBENCH=62868
IDSOLVER=370
FILE ID=node74/1123429-1216149798
PBS_JOBID= 7905654
Free space on /tmp= 103240 MiB

SOLVER NAME= toulbar2/BTD 2008-06-27
BENCH NAME= CPAI08/maxcsp/pi/pi-20-10-20-t70/normalized-pi-20-10-20-30-18.xml
COMMAND LINE= HOME/solverBTD.sh BENCHNAME 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1123429-1216149798/watcher-1123429-1216149798 -o /tmp/evaluation-result-1123429-1216149798/solver-1123429-1216149798 -C 3600 -W 4000 -M 900 --output-limit 1,15  HOME/solverBTD.sh HOME/instance-1123429-1216149798.xml 

TIME LIMIT= 3600 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 1701183b819d6ab7c814435446d14a54
RANDOM SEED=823948333

node74.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		: 3000.261
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		: 3000.261
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:        759840 kB
Buffers:         63404 kB
Cached:        1074440 kB
SwapCached:          0 kB
Active:        1172308 kB
Inactive:        58172 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        759840 kB
SwapTotal:     4192956 kB
SwapFree:      4190156 kB
Dirty:            9012 kB
Writeback:           0 kB
Mapped:         114200 kB
Slab:            49812 kB
Committed_AS:  1033664 kB
PageTables:       2652 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= 103232 MiB
End job on node74 at 2008-07-15 21:23:19