Trace number 1083978

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-probe 2008-06-27UNSAT 1.67674 1.69161

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-prime version 1.313
0.18/0.21	c 
0.18/0.21	c Parsing xml file
0.18/0.21	c          domains...............     0	(1 domains)
0.18/0.21	c          variables.............     0	(300 variables)
0.18/0.21	c          predicates............     0	(2 predicates)
0.18/0.21	c          constraints...........  1.23	(33675 constraints)
1.17/1.25	c Parsing time:   1.23
1.17/1.25	c
1.17/1.25	c Building model
1.38/1.50	c       150 AllDifferent constraints infered
1.48/1.57	c         0 constants
1.48/1.57	c         0 Boolean variables    (+0)
1.48/1.57	c         0 range variables      (+0)
1.48/1.57	c         0 domain (b) variables (+0)
1.48/1.57	c       300 domain (l) variables (+0)
1.48/1.57	c     33675 constraints          (+150)
1.48/1.57	c         0 values 
1.48/1.57	c Building time:   0.32
1.48/1.57	c
1.48/1.57	c Solving instance
1.48/1.57	c          heuristic = dom/wdeg
1.48/1.57	c          Randomized probing iteration = 100
1.48/1.57	c          probing limit = 30
1.48/1.57	c          level based weights = no
1.48/1.57	c          impact probing = no
1.48/1.57	c          restart policy = No restart
1.48/1.57	c          probing -4.4452e-17
1.48/1.57	c          Probing Nodes     0
1.48/1.57	c Solving time:      0
1.48/1.57	c
1.48/1.57	s UNSATISFIABLE
1.48/1.57	d CHECKS 1
1.48/1.57	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-1083978-1215229563/watcher-1083978-1215229563 -o /tmp/evaluation-result-1083978-1215229563/solver-1083978-1215229563 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1083978-1215229563.xml -v 1 -rs 873697817 -probe 1 -ph 0 -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: 2.38 2.15 2.05 4/80 15510
/proc/meminfo: memFree=1581568/2055920 swapFree=4180424/4192956
[pid=15510] ppid=15508 vsize=18572 CPUtime=0
/proc/15510/stat : 15510 (runsolver) R 15508 15510 14475 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 2001929859 19017728 292 996147200 4194304 4296836 548682068336 18446744073709551615 210824129831 0 0 4096 24578 0 0 0 17 1 0 0
/proc/15510/statm: 4643 292 257 25 0 2626 0

[startup+0.0725381 s]
/proc/loadavg: 2.38 2.15 2.05 4/80 15510
/proc/meminfo: memFree=1581568/2055920 swapFree=4180424/4192956
[pid=15510] ppid=15508 vsize=5496 CPUtime=0.06
/proc/15510/stat : 15510 (xsolve) R 15508 15510 14475 0 -1 4194304 697 0 0 0 6 0 0 0 18 0 1 0 2001929859 5627904 663 996147200 134512640 135239859 4294956144 18446744073709551615 4159732902 0 0 4096 0 0 0 0 17 1 0 0
/proc/15510/statm: 1374 663 394 177 0 277 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 5496

[startup+0.101539 s]
/proc/loadavg: 2.38 2.15 2.05 4/80 15510
/proc/meminfo: memFree=1581568/2055920 swapFree=4180424/4192956
[pid=15510] ppid=15508 vsize=5884 CPUtime=0.08
/proc/15510/stat : 15510 (xsolve) R 15508 15510 14475 0 -1 4194304 791 0 0 0 8 0 0 0 18 0 1 0 2001929859 6025216 757 996147200 134512640 135239859 4294956144 18446744073709551615 4159712596 0 0 4096 0 0 0 0 17 1 0 0
/proc/15510/statm: 1471 757 394 177 0 374 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5884

[startup+0.301564 s]
/proc/loadavg: 2.38 2.15 2.05 4/80 15510
/proc/meminfo: memFree=1581568/2055920 swapFree=4180424/4192956
[pid=15510] ppid=15508 vsize=8500 CPUtime=0.29
/proc/15510/stat : 15510 (xsolve) R 15508 15510 14475 0 -1 4194304 1438 0 0 0 28 1 0 0 19 0 1 0 2001929859 8704000 1404 996147200 134512640 135239859 4294956144 18446744073709551615 134943127 0 0 4096 0 0 0 0 17 1 0 0
/proc/15510/statm: 2125 1404 394 177 0 1028 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8500

[startup+0.701615 s]
/proc/loadavg: 2.38 2.15 2.05 4/80 15510
/proc/meminfo: memFree=1581568/2055920 swapFree=4180424/4192956
[pid=15510] ppid=15508 vsize=13524 CPUtime=0.68
/proc/15510/stat : 15510 (xsolve) R 15508 15510 14475 0 -1 4194304 2706 0 0 0 67 1 0 0 23 0 1 0 2001929859 13848576 2606 996147200 134512640 135239859 4294956144 18446744073709551615 4159157505 0 0 4096 0 0 0 0 17 1 0 0
/proc/15510/statm: 3381 2606 394 177 0 2284 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 13524

[startup+1.50171 s]
/proc/loadavg: 2.38 2.15 2.05 3/81 15511
/proc/meminfo: memFree=1568952/2055920 swapFree=4180424/4192956
[pid=15510] ppid=15508 vsize=22404 CPUtime=1.48
/proc/15510/stat : 15510 (xsolve) R 15508 15510 14475 0 -1 4194304 5218 0 0 0 145 3 0 0 25 0 1 0 2001929859 22941696 4694 996147200 134512640 135239859 4294956144 18446744073709551615 134551052 0 0 4096 0 0 0 0 17 1 0 0
/proc/15510/statm: 5601 4694 423 177 0 4504 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 22404

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

[startup+1.60173 s]
/proc/loadavg: 2.38 2.15 2.05 3/81 15511
/proc/meminfo: memFree=1568952/2055920 swapFree=4180424/4192956
[pid=15510] ppid=15508 vsize=37720 CPUtime=1.58
/proc/15510/stat : 15510 (xsolve) R 15508 15510 14475 0 -1 4194304 9020 0 0 0 154 4 0 0 25 0 1 0 2001929859 38625280 8463 996147200 134512640 135239859 4294956144 18446744073709551615 11374716 0 0 4096 0 0 0 0 17 1 0 0
/proc/15510/statm: 9430 8463 434 177 0 8333 0
Current children cumulated CPU time (s) 1.58
Current children cumulated vsize (KiB) 37720

Child status: 0
Real time (s): 1.69161
CPU time (s): 1.67674
CPU user time (s): 1.62675
CPU system time (s): 0.049992
CPU usage (%): 99.1214
Max. virtual memory (cumulated for all children) (KiB): 37720

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.62675
system time used= 0.049992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9029
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= 77

runsolver used 0.004999 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node33 at 2008-07-05 05:46:04
IDJOB=1083978
IDBENCH=57518
IDSOLVER=342
FILE ID=node33/1083978-1215229563
PBS_JOBID= 7881868
Free space on /tmp= 66468 MiB

SOLVER NAME= MDG-probe 2008-06-27
BENCH NAME= CPAI08/csp/super-queens/normalized-super-queens-6.xml
COMMAND LINE= HOME/xsolve BENCHNAME -v 1 -rs RANDOMSEED -probe 1 -ph 0 -heu dom/wdeg -res no
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1083978-1215229563/watcher-1083978-1215229563 -o /tmp/evaluation-result-1083978-1215229563/solver-1083978-1215229563 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1083978-1215229563.xml -v 1 -rs 873697817 -probe 1 -ph 0 -heu dom/wdeg -res no

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 2e0c449e9fcf4011cd4abe4683793658
RANDOM SEED=873697817

node33.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		: 3000.231
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		: 3000.231
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:       1582048 kB
Buffers:         45240 kB
Cached:         177748 kB
SwapCached:       6444 kB
Active:         343008 kB
Inactive:        71512 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1582048 kB
SwapTotal:     4192956 kB
SwapFree:      4180424 kB
Dirty:            5328 kB
Writeback:           0 kB
Mapped:         207808 kB
Slab:            44392 kB
Committed_AS:  4392928 kB
PageTables:       2172 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= 66464 MiB
End job on node33 at 2008-07-05 05:46:05