Trace number 1083988

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
Mistral-option 1.314UNSAT 1.74773 1.76941

DiagnosticValue
ASSIGNMENTS0
CHECKS1

General information on the benchmark

Namecsp/super-queens/
normalized-super-queens-6.xml
MD5SUM2e0c449e9fcf4011cd4abe4683793658
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.67674
Satisfiable
(Un)Satisfiability was proved
Number of variables300
Number of constraints33675
Maximum constraint arity2
Maximum domain size150
Number of constraints which are defined in extension0
Number of constraints which are defined in intension33675
Global constraints used (with number of constraints)

Solver Data (download as text)

0.18/0.21	c mistral-option version 1.313
1.57/1.62	s UNSATISFIABLE
1.57/1.62	d CHECKS 1
1.57/1.62	d ASSIGNMENTS 0

Verifier Data (download as text)

No possible verification on an UNSAT instance

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-1083988-1215229596/watcher-1083988-1215229596 -o /tmp/evaluation-result-1083988-1215229596/solver-1083988-1215229596 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1083988-1215229596.xml -heu dyn -sac 3 -ds 2 

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): 2200 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: 2.04 2.01 2.00 4/81 23954
/proc/meminfo: memFree=820024/2055920 swapFree=4156368/4192956
[pid=23954] ppid=23952 vsize=820 CPUtime=0
/proc/23954/stat : 23954 (xsolve) R 23952 23954 22432 0 -1 4194304 39 0 0 0 0 0 0 0 19 0 1 0 706926018 839680 25 996147200 134512640 135239763 4294956192 18446744073709551615 4870948 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/23954/statm: 205 25 19 177 0 3 0

[startup+0.0865941 s]
/proc/loadavg: 2.04 2.01 2.00 4/81 23954
/proc/meminfo: memFree=820024/2055920 swapFree=4156368/4192956
[pid=23954] ppid=23952 vsize=5624 CPUtime=0.07
/proc/23954/stat : 23954 (xsolve) R 23952 23954 22432 0 -1 4194304 702 0 0 0 7 0 0 0 18 0 1 0 706926018 5758976 668 996147200 134512640 135239763 4294956192 18446744073709551615 134630417 0 0 4096 0 0 0 0 17 1 0 0
/proc/23954/statm: 1406 668 376 177 0 309 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5624

[startup+0.101593 s]
/proc/loadavg: 2.04 2.01 2.00 4/81 23954
/proc/meminfo: memFree=820024/2055920 swapFree=4156368/4192956
[pid=23954] ppid=23952 vsize=5752 CPUtime=0.08
/proc/23954/stat : 23954 (xsolve) R 23952 23954 22432 0 -1 4194304 750 0 0 0 8 0 0 0 18 0 1 0 706926018 5890048 716 996147200 134512640 135239763 4294956192 18446744073709551615 134643232 0 0 4096 0 0 0 0 17 1 0 0
/proc/23954/statm: 1438 716 376 177 0 341 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5752

[startup+0.301633 s]
/proc/loadavg: 2.04 2.01 2.00 4/81 23954
/proc/meminfo: memFree=820024/2055920 swapFree=4156368/4192956
[pid=23954] ppid=23952 vsize=8220 CPUtime=0.28
/proc/23954/stat : 23954 (xsolve) R 23952 23954 22432 0 -1 4194304 1361 0 0 0 28 0 0 0 19 0 1 0 706926018 8417280 1327 996147200 134512640 135239763 4294956192 18446744073709551615 134942642 0 0 4096 0 0 0 0 17 1 0 0
/proc/23954/statm: 2055 1327 376 177 0 958 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 8220

[startup+0.701699 s]
/proc/loadavg: 2.04 2.01 2.00 4/81 23954
/proc/meminfo: memFree=820024/2055920 swapFree=4156368/4192956
[pid=23954] ppid=23952 vsize=13252 CPUtime=0.68
/proc/23954/stat : 23954 (xsolve) R 23952 23954 22432 0 -1 4194304 2615 0 0 0 67 1 0 0 23 0 1 0 706926018 13570048 2515 996147200 134512640 135239763 4294956192 18446744073709551615 4160503938 0 0 4096 0 0 0 0 17 1 0 0
/proc/23954/statm: 3313 2515 376 177 0 2216 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 13252

[startup+1.50183 s]
/proc/loadavg: 2.04 2.01 2.00 3/82 23955
/proc/meminfo: memFree=807792/2055920 swapFree=4156368/4192956
[pid=23954] ppid=23952 vsize=20992 CPUtime=1.47
/proc/23954/stat : 23954 (xsolve) R 23952 23954 22432 0 -1 4194304 4567 0 0 0 145 2 0 0 25 0 1 0 706926018 21495808 4304 996147200 134512640 135239763 4294956192 18446744073709551615 134884278 0 0 4096 0 0 0 0 17 1 0 0
/proc/23954/statm: 5248 4304 379 177 0 4151 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 20992

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

[startup+1.70187 s]
/proc/loadavg: 2.04 2.01 2.00 3/82 23955
/proc/meminfo: memFree=807792/2055920 swapFree=4156368/4192956
[pid=23954] ppid=23952 vsize=37184 CPUtime=1.67
/proc/23954/stat : 23954 (xsolve) R 23952 23954 22432 0 -1 4194304 9006 0 0 0 162 5 0 0 25 0 1 0 706926018 38076416 8380 996147200 134512640 135239763 4294956192 18446744073709551615 5300293 0 0 4096 0 0 0 0 17 1 0 0
/proc/23954/statm: 9296 8380 420 177 0 8199 0
Current children cumulated CPU time (s) 1.67
Current children cumulated vsize (KiB) 37184

Child status: 0
Real time (s): 1.76941
CPU time (s): 1.74773
CPU user time (s): 1.68974
CPU system time (s): 0.057991
CPU usage (%): 98.7751
Max. virtual memory (cumulated for all children) (KiB): 37184

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.68974
system time used= 0.057991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9007
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= 7
involuntary context switches= 81

runsolver used 0.003999 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node58 at 2008-07-05 05:46:36
IDJOB=1083988
IDBENCH=57518
IDSOLVER=357
FILE ID=node58/1083988-1215229596
PBS_JOBID= 7881888
Free space on /tmp= 66552 MiB

SOLVER NAME= Mistral-option 1.314
BENCH NAME= CPAI08/csp/super-queens/normalized-super-queens-6.xml
COMMAND LINE= HOME/xsolve BENCHNAME -heu dyn -sac 3 -ds 2 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1083988-1215229596/watcher-1083988-1215229596 -o /tmp/evaluation-result-1083988-1215229596/solver-1083988-1215229596 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1083988-1215229596.xml -heu dyn -sac 3 -ds 2 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 2e0c449e9fcf4011cd4abe4683793658
RANDOM SEED=129931457

node58.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:        820504 kB
Buffers:        111316 kB
Cached:         312404 kB
SwapCached:      30928 kB
Active:         898712 kB
Inactive:       256412 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        820504 kB
SwapTotal:     4192956 kB
SwapFree:      4156368 kB
Dirty:            5092 kB
Writeback:           0 kB
Mapped:         747244 kB
Slab:            64192 kB
Committed_AS:  1912604 kB
PageTables:       3176 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= 66552 MiB
End job on node58 at 2008-07-05 05:46:38