Trace number 1052258

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 2008-06-27SAT 0.780881 0.791877

DiagnosticValue
ASSIGNMENTS13
CHECKS2394

General information on the benchmark

Namecsp/bddSmall/
normalized-bdd-21-133-18-78-32_ext.xml
MD5SUM307c86d1b1d5087d7283ea5358a15937
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.719889
Satisfiable
(Un)Satisfiability was proved
Number of variables21
Number of constraints133
Maximum constraint arity18
Maximum domain size2
Number of constraints which are defined in extension133
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.16	c mistral-prime version 1.313
0.00/0.16	c 
0.00/0.16	c Parsing xml file
0.00/0.16	c          domains...............     0	(1 domains)
0.00/0.16	c          variables.............     0	(21 variables)
0.00/0.16	c          relations.............  0.26	(1 relations)
0.00/0.26	c          constraints...........  0.01	(133 constraints)
0.00/0.27	c Parsing time:   0.27
0.00/0.27	c
0.00/0.27	c Building model
0.69/0.75	c         0 constants
0.69/0.75	c        21 Boolean variables    (+0)
0.69/0.75	c         0 range variables      (+0)
0.69/0.75	c         0 domain (b) variables (+0)
0.69/0.75	c         0 domain (l) variables (+0)
0.69/0.75	c       133 constraints          (+0)
0.69/0.75	c         0 values 
0.69/0.75	c Building time:   0.47
0.69/0.75	c
0.69/0.75	c Solving instance
0.69/0.75	c          heuristic = dom/wdeg
0.69/0.75	c          Randomized probing iteration = 100
0.69/0.75	c          probing limit = 30
0.69/0.75	c          level based weights = no
0.69/0.75	c          impact probing = no
0.69/0.75	c          restart policy = No restart
0.69/0.75	c          probing .  0.03
0.69/0.78	c          Probing Nodes    13
0.69/0.78	c Solving time:   0.03
0.69/0.78	c
0.69/0.78	s SATISFIABLE
0.69/0.78	v 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0.69/0.78	d CHECKS 2394
0.69/0.78	d ASSIGNMENTS 13

Verifier Data (download as text)

OK

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-1052258-1215056391/watcher-1052258-1215056391 -o /tmp/evaluation-result-1052258-1215056391/solver-1052258-1215056391 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1052258-1215056391.xml -v 1 -rs 204126199 -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: 1.99 2.02 2.00 4/72 13376
/proc/meminfo: memFree=1881864/2055920 swapFree=4180384/4192956
[pid=13376] ppid=13374 vsize=8252 CPUtime=0.19
/proc/13376/stat : 13376 (xsolve) R 13374 13376 10990 0 -1 4194304 1371 0 0 0 19 0 0 0 19 0 1 0 1535305936 8450048 1337 996147200 134512640 135239859 4294956144 18446744073709551615 7315069 0 0 4096 0 0 0 0 17 1 0 0
/proc/13376/statm: 2063 1337 373 177 0 966 0

[startup+0.288433 s]
/proc/loadavg: 1.99 2.02 2.00 4/72 13376
/proc/meminfo: memFree=1881864/2055920 swapFree=4180384/4192956
[pid=13376] ppid=13374 vsize=9440 CPUtime=0.28
/proc/13376/stat : 13376 (xsolve) R 13374 13376 10990 0 -1 4194304 1714 0 0 0 27 1 0 0 19 0 1 0 1535305936 9666560 1680 996147200 134512640 135239859 4294956144 18446744073709551615 134730328 0 0 4096 0 0 0 0 17 1 0 0
/proc/13376/statm: 2360 1680 403 177 0 1263 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 9440

[startup+0.301437 s]
/proc/loadavg: 1.99 2.02 2.00 4/72 13376
/proc/meminfo: memFree=1881864/2055920 swapFree=4180384/4192956
[pid=13376] ppid=13374 vsize=9440 CPUtime=0.29
/proc/13376/stat : 13376 (xsolve) R 13374 13376 10990 0 -1 4194304 1717 0 0 0 28 1 0 0 19 0 1 0 1535305936 9666560 1683 996147200 134512640 135239859 4294956144 18446744073709551615 134730328 0 0 4096 0 0 0 0 17 1 0 0
/proc/13376/statm: 2360 1683 403 177 0 1263 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9440

[startup+0.40145 s]
/proc/loadavg: 1.99 2.02 2.00 4/72 13376
/proc/meminfo: memFree=1881864/2055920 swapFree=4180384/4192956
[pid=13376] ppid=13374 vsize=9572 CPUtime=0.39
/proc/13376/stat : 13376 (xsolve) R 13374 13376 10990 0 -1 4194304 1745 0 0 0 38 1 0 0 20 0 1 0 1535305936 9801728 1711 996147200 134512640 135239859 4294956144 18446744073709551615 134730327 0 0 4096 0 0 0 0 17 1 0 0
/proc/13376/statm: 2393 1711 403 177 0 1296 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 9572

[startup+0.701503 s]
/proc/loadavg: 1.99 2.02 2.00 4/72 13376
/proc/meminfo: memFree=1881864/2055920 swapFree=4180384/4192956
[pid=13376] ppid=13374 vsize=9968 CPUtime=0.69
/proc/13376/stat : 13376 (xsolve) R 13374 13376 10990 0 -1 4194304 1825 0 0 0 68 1 0 0 23 0 1 0 1535305936 10207232 1791 996147200 134512640 135239859 4294956144 18446744073709551615 134730330 0 0 4096 0 0 0 0 17 1 0 0
/proc/13376/statm: 2492 1791 403 177 0 1395 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9968

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

Child status: 0
Real time (s): 0.791877
CPU time (s): 0.780881
CPU user time (s): 0.767883
CPU system time (s): 0.012998
CPU usage (%): 98.6114
Max. virtual memory (cumulated for all children) (KiB): 9968

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.767883
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1852
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= 54

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node55 at 2008-07-03 05:39:51
IDJOB=1052258
IDBENCH=55972
IDSOLVER=342
FILE ID=node55/1052258-1215056391
PBS_JOBID= 7875065
Free space on /tmp= 66540 MiB

SOLVER NAME= MDG-probe 2008-06-27
BENCH NAME= CPAI08/csp/bddSmall/normalized-bdd-21-133-18-78-32_ext.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-1052258-1215056391/watcher-1052258-1215056391 -o /tmp/evaluation-result-1052258-1215056391/solver-1052258-1215056391 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1052258-1215056391.xml -v 1 -rs 204126199 -probe 1 -ph 0 -heu dom/wdeg -res no

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 307c86d1b1d5087d7283ea5358a15937
RANDOM SEED=204126199

node55.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:       1882408 kB
Buffers:          8088 kB
Cached:          72316 kB
SwapCached:       6636 kB
Active:          70420 kB
Inactive:        40560 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1882408 kB
SwapTotal:     4192956 kB
SwapFree:      4180384 kB
Dirty:            3020 kB
Writeback:           0 kB
Mapped:          38216 kB
Slab:            46364 kB
Committed_AS:  3034972 kB
PageTables:       3244 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 node55 at 2008-07-03 05:39:52