Trace number 1084126

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 1.60176 1.60286

DiagnosticValue
ASSIGNMENTS0
CHECKS1

General information on the benchmark

Namecsp/super-queens/
normalized-super-queens-4.xml
MD5SUM86f27dad5b32c8754684e5fda2e6b575
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 benchmark1.60176
Satisfiable
(Un)Satisfiability was proved
Number of variables240
Number of constraints21540
Maximum constraint arity2
Maximum domain size120
Number of constraints which are defined in extension0
Number of constraints which are defined in intension21540
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.00	c mistral-prime version 1.313
1.19/1.23	s UNSATISFIABLE
1.19/1.23	d CHECKS 1
1.19/1.23	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-1084126-1215230091/watcher-1084126-1215230091 -o /tmp/evaluation-result-1084126-1215230091/solver-1084126-1215230091 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1084126-1215230091.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: 1.97 2.06 2.14 4/81 27490
/proc/meminfo: memFree=1498704/2055920 swapFree=4166000/4192956
[pid=27490] ppid=27488 vsize=4584 CPUtime=0
/proc/27490/stat : 27490 (xsolve) R 27488 27490 27261 0 -1 4194304 377 0 0 0 0 0 0 0 18 0 1 0 636226984 4694016 343 996147200 134512640 135239859 4294956208 18446744073709551615 4158995072 0 0 4096 0 0 0 0 17 1 0 0
/proc/27490/statm: 1146 350 300 177 0 49 0

[startup+0.0952151 s]
/proc/loadavg: 1.97 2.06 2.14 4/81 27490
/proc/meminfo: memFree=1498704/2055920 swapFree=4166000/4192956
[pid=27490] ppid=27488 vsize=7396 CPUtime=0.08
/proc/27490/stat : 27490 (xsolve) R 27488 27490 27261 0 -1 4194304 1159 0 0 0 8 0 0 0 18 0 1 0 636226984 7573504 1125 996147200 134512640 135239859 4294956208 18446744073709551615 10860155 0 0 4096 0 0 0 0 17 1 0 0
/proc/27490/statm: 1849 1125 371 177 0 752 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 7396

[startup+0.101211 s]
/proc/loadavg: 1.97 2.06 2.14 4/81 27490
/proc/meminfo: memFree=1498704/2055920 swapFree=4166000/4192956
[pid=27490] ppid=27488 vsize=7524 CPUtime=0.09
/proc/27490/stat : 27490 (xsolve) R 27488 27490 27261 0 -1 4194304 1201 0 0 0 9 0 0 0 18 0 1 0 636226984 7704576 1167 996147200 134512640 135239859 4294956208 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/27490/statm: 1881 1167 371 177 0 784 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7524

[startup+0.301254 s]
/proc/loadavg: 1.97 2.06 2.14 4/81 27490
/proc/meminfo: memFree=1498704/2055920 swapFree=4166000/4192956
[pid=27490] ppid=27488 vsize=13680 CPUtime=0.29
/proc/27490/stat : 27490 (xsolve) R 27488 27490 27261 0 -1 4194304 2753 0 0 0 28 1 0 0 19 0 1 0 636226984 14008320 2653 996147200 134512640 135239859 4294956208 18446744073709551615 10860155 0 0 4096 0 0 0 0 17 1 0 0
/proc/27490/statm: 3420 2654 371 177 0 2323 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13680

[startup+0.701334 s]
/proc/loadavg: 1.97 2.06 2.14 4/81 27490
/proc/meminfo: memFree=1498704/2055920 swapFree=4166000/4192956
[pid=27490] ppid=27488 vsize=25296 CPUtime=0.69
/proc/27490/stat : 27490 (xsolve) R 27488 27490 27261 0 -1 4194304 5783 0 0 0 66 3 0 0 23 0 1 0 636226984 25903104 5553 996147200 134512640 135239859 4294956208 18446744073709551615 10860155 0 0 4096 0 0 0 0 17 1 0 0
/proc/27490/statm: 6324 5553 371 177 0 5227 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 25296

[startup+1.5025 s]
/proc/loadavg: 1.97 2.06 2.14 3/82 27491
/proc/meminfo: memFree=1433672/2055920 swapFree=4166000/4192956
[pid=27490] ppid=27488 vsize=148500 CPUtime=1.49
/proc/27490/stat : 27490 (xsolve) R 27488 27490 27261 0 -1 4194304 37046 0 0 0 132 17 0 0 25 0 1 0 636226984 152064000 36382 996147200 134512640 135239859 4294956208 18446744073709551615 10857980 0 0 4096 0 0 0 0 17 1 0 0
/proc/27490/statm: 37125 36382 422 177 0 36028 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 148500

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

[startup+1.60251 s]
/proc/loadavg: 1.97 2.06 2.14 3/82 27491
/proc/meminfo: memFree=1433672/2055920 swapFree=4166000/4192956
[pid=27490] ppid=27488 vsize=0 CPUtime=1.59
/proc/27490/stat : 27490 (xsolve) R 27488 27490 27261 0 -1 4194308 37048 0 0 0 140 19 0 0 25 0 1 0 636226984 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/27490/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 1.60286
CPU time (s): 1.60176
CPU user time (s): 1.40679
CPU system time (s): 0.19497
CPU usage (%): 99.9312
Max. virtual memory (cumulated for all children) (KiB): 149868

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.40679
system time used= 0.19497
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 37048
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= 6

runsolver used 0.006998 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node77 at 2008-07-05 05:54:52
IDJOB=1084126
IDBENCH=57527
IDSOLVER=343
FILE ID=node77/1084126-1215230091
PBS_JOBID= 7881874
Free space on /tmp= 66536 MiB

SOLVER NAME= MDG-noprobe 2008-06-27
BENCH NAME= CPAI08/csp/super-queens/normalized-super-queens-4.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-1084126-1215230091/watcher-1084126-1215230091 -o /tmp/evaluation-result-1084126-1215230091/solver-1084126-1215230091 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1084126-1215230091.xml -heu dom/wdeg -res no 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 86f27dad5b32c8754684e5fda2e6b575
RANDOM SEED=1880311288

node77.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		: 3000.274
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		: 3000.274
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:       1499120 kB
Buffers:         70796 kB
Cached:         212964 kB
SwapCached:      20880 kB
Active:         396480 kB
Inactive:        94236 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1499120 kB
SwapTotal:     4192956 kB
SwapFree:      4166000 kB
Dirty:            3592 kB
Writeback:           0 kB
Mapped:         223180 kB
Slab:            51036 kB
Committed_AS:  1937500 kB
PageTables:       2144 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= 66536 MiB
End job on node77 at 2008-07-05 05:54:54