Trace number 1084042

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
MDG-noprobe 2008-06-27UNSAT 1.25381 1.26755

DiagnosticValue
ASSIGNMENTS0
CHECKS1

General information on the benchmark

Namecsp/super-queens/
normalized-super-queens-2.xml
MD5SUMc461fd9f78bea6a7f910d09245157b44
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 benchmark1.11883
Satisfiable
(Un)Satisfiability was proved
Number of variables200
Number of constraints14950
Maximum constraint arity2
Maximum domain size100
Number of constraints which are defined in extension0
Number of constraints which are defined in intension14950
Global constraints used (with number of constraints)

Solver Data (download as text)

0.18/0.22	c mistral-prime version 1.313
0.88/0.95	s UNSATISFIABLE
0.88/0.95	d CHECKS 1
0.88/0.95	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-1084042-1215229732/watcher-1084042-1215229732 -o /tmp/evaluation-result-1084042-1215229732/solver-1084042-1215229732 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1084042-1215229732.xml -heu dom/wdeg -res no 

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: 2.05 2.12 2.05 4/72 5974
/proc/meminfo: memFree=1675040/2055920 swapFree=4180028/4192956
[pid=5974] ppid=5972 vsize=18572 CPUtime=0
/proc/5974/stat : 5974 (runsolver) R 5972 5974 4509 0 -1 4194368 15 0 0 0 0 0 0 0 22 0 1 0 2001948601 19017728 292 996147200 4194304 4296836 548682068448 18446744073709551615 259913215271 0 0 4096 24578 0 0 0 17 1 0 0
/proc/5974/statm: 4643 292 257 25 0 2626 0

[startup+0.143968 s]
/proc/loadavg: 2.05 2.12 2.05 4/72 5974
/proc/meminfo: memFree=1675040/2055920 swapFree=4180028/4192956
[pid=5974] ppid=5972 vsize=8444 CPUtime=0.13
/proc/5974/stat : 5974 (xsolve) R 5972 5974 4509 0 -1 4194304 1384 0 0 0 12 1 0 0 18 0 1 0 2001948601 8646656 1350 996147200 134512640 135239859 4294956208 18446744073709551615 11023995 0 0 4096 0 0 0 0 17 1 0 0
/proc/5974/statm: 2111 1350 371 177 0 1014 0
Current children cumulated CPU time (s) 0.13
Current children cumulated vsize (KiB) 8444

[startup+0.201975 s]
/proc/loadavg: 2.05 2.12 2.05 4/72 5974
/proc/meminfo: memFree=1675040/2055920 swapFree=4180028/4192956
[pid=5974] ppid=5972 vsize=9868 CPUtime=0.18
/proc/5974/stat : 5974 (xsolve) R 5972 5974 4509 0 -1 4194304 1781 0 0 0 17 1 0 0 18 0 1 0 2001948601 10104832 1747 996147200 134512640 135239859 4294956208 18446744073709551615 11023995 0 0 4096 0 0 0 0 17 1 0 0
/proc/5974/statm: 2467 1747 371 177 0 1370 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 9868

[startup+0.301982 s]
/proc/loadavg: 2.05 2.12 2.05 4/72 5974
/proc/meminfo: memFree=1675040/2055920 swapFree=4180028/4192956
[pid=5974] ppid=5972 vsize=12724 CPUtime=0.28
/proc/5974/stat : 5974 (xsolve) R 5972 5974 4509 0 -1 4194304 2514 0 0 0 27 1 0 0 19 0 1 0 2001948601 13029376 2414 996147200 134512640 135239859 4294956208 18446744073709551615 11023995 0 0 4096 0 0 0 0 17 1 0 0
/proc/5974/statm: 3181 2414 371 177 0 2084 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 12724

[startup+0.70202 s]
/proc/loadavg: 2.05 2.12 2.05 4/72 5974
/proc/meminfo: memFree=1675040/2055920 swapFree=4180028/4192956
[pid=5974] ppid=5972 vsize=28252 CPUtime=0.69
/proc/5974/stat : 5974 (xsolve) R 5972 5974 4509 0 -1 4194304 6541 0 0 0 66 3 0 0 22 0 1 0 2001948601 28930048 6248 996147200 134512640 135239859 4294956208 18446744073709551615 11023995 0 0 4096 0 0 0 0 17 1 0 0
/proc/5974/statm: 7063 6253 400 177 0 5966 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 28252

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

[startup+0.801029 s]
/proc/loadavg: 2.05 2.12 2.05 4/72 5974
/proc/meminfo: memFree=1675040/2055920 swapFree=4180028/4192956
[pid=5974] ppid=5972 vsize=56236 CPUtime=0.78
/proc/5974/stat : 5974 (xsolve) R 5972 5974 4509 0 -1 4194304 13528 0 0 0 71 7 0 0 23 0 1 0 2001948601 57585664 13235 996147200 134512640 135239859 4294956208 18446744073709551615 11023995 0 0 4096 0 0 0 0 17 1 0 0
/proc/5974/statm: 14059 13240 400 177 0 12962 0
Current children cumulated CPU time (s) 0.78
Current children cumulated vsize (KiB) 56236

[startup+1.20607 s]
/proc/loadavg: 2.05 2.12 2.05 3/73 5975
/proc/meminfo: memFree=1579032/2055920 swapFree=4180028/4192956
[pid=5974] ppid=5972 vsize=24484 CPUtime=1.18
/proc/5974/stat : 5974 (xsolve) R 5972 5974 4509 0 -1 4194304 24676 0 0 0 103 15 0 0 25 0 1 0 2001948601 25071616 5356 996147200 134512640 135239859 4294956208 18446744073709551615 4159148577 0 0 4096 0 0 0 0 17 1 0 0
/proc/5974/statm: 6121 5356 422 177 0 5024 0
Current children cumulated CPU time (s) 1.18
Current children cumulated vsize (KiB) 24484

Child status: 0
Real time (s): 1.26755
CPU time (s): 1.25381
CPU user time (s): 1.09283
CPU system time (s): 0.160975
CPU usage (%): 98.9162
Max. virtual memory (cumulated for all children) (KiB): 100852

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.09283
system time used= 0.160975
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 24678
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= 27

runsolver used 0.005999 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node4 at 2008-07-05 05:48:52
IDJOB=1084042
IDBENCH=57522
IDSOLVER=343
FILE ID=node4/1084042-1215229732
PBS_JOBID= 7881847
Free space on /tmp= 66504 MiB

SOLVER NAME= MDG-noprobe 2008-06-27
BENCH NAME= CPAI08/csp/super-queens/normalized-super-queens-2.xml
COMMAND LINE= HOME/xsolve BENCHNAME -heu dom/wdeg -res no 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1084042-1215229732/watcher-1084042-1215229732 -o /tmp/evaluation-result-1084042-1215229732/solver-1084042-1215229732 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1084042-1215229732.xml -heu dom/wdeg -res no 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= c461fd9f78bea6a7f910d09245157b44
RANDOM SEED=588583746

node4.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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1675520 kB
Buffers:         55240 kB
Cached:         192408 kB
SwapCached:       7012 kB
Active:         211136 kB
Inactive:       109696 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1675520 kB
SwapTotal:     4192956 kB
SwapFree:      4180028 kB
Dirty:            2780 kB
Writeback:           0 kB
Mapped:          80724 kB
Slab:            44692 kB
Committed_AS:  3377224 kB
PageTables:       1996 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= 66504 MiB
End job on node4 at 2008-07-05 05:48:54