Trace number 235296

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, and are wall clock time (not CPU 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
Tramontane 2006-12-04SAT 0.215966 0.223419

General information on the benchmark

Nametaillard/os-taillard-10/
os-taillard-10-105-5.xml
MD5SUM7b8cab6ec70ebd45de2b8c6678d6df2b
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.215966
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables100
Number of constraints900
Maximum constraint arity2
Maximum domain size565
Number of constraints which are defined in extension0
Number of constraints which are defined in intension900
Global constraints used (with number of constraints)

Solver Data (download as text)

0.22	c 
0.22	c Parsing xml file
0.22	c 	domains...............    0
0.22	c 	variables.............    0
0.22	c 	predicates............    0
0.22	c 	constraints........... 0.06
0.22	c Allocating memory
0.22	c 
0.22	c time limit = -1
0.22	c heuristic = dom/wdeg
0.22	c restart policy = Geometric increment
0.22	c restart base = 666
0.22	c restart factor = 1.33
0.22	c 
0.22	c Solving
0.22	c
0.22	s SATISFIABLE
0.22	v 359 137 59 325 414 506 0 517 189 243 99 120 315 204 45 414 405 431 0 528 529 0 192 431 107 405 278 220 314 137 489 99 430 0 392 381 314 223 189 524 87 290 423 333 260 529 223 553 0 146 62 387 541 322 290 486 528 146 215 0 371 90 154 393 486 388 260 335 10 445 513 59 281 120 474 325 216 0 94 407 489 0 359 208 381 258 189 94 512 325 10 192 0 278 335 407 227 90 474 120
0.22	d          SAT      1273 BTS      0.11 s

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node60/watcher-235296-1168337115 -o ROOT/results/node60/solver-235296-1168337115 -C 1800 -M 900 /tmp/evaluation/235296-1168337115/tramontane/bin/solver /tmp/evaluation/235296-1168337115/unknown.xml -res geom -f 3 -v 1 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 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
Current StackSize limit: 10240 KiB

/proc/loadavg: 2.00 2.00 1.83 5/73 22813
/proc/meminfo: memFree=1456216/2055920 swapFree=4192812/4192956
[pid=22812] ppid=22810 vsize=18540 CPUtime=0
/proc/22812/stat : 22812 (runsolver) R 22810 22812 21426 0 -1 4194368 16 0 0 0 0 0 0 0 21 0 1 0 182109438 18984960 279 18446744073709551615 4194304 4267372 548682068992 18446744073709551615 271894244647 0 0 4096 24578 0 0 0 17 1 0 0
/proc/22812/statm: 4635 279 244 17 0 2626 0

[startup+0.107373 s]
/proc/loadavg: 2.00 2.00 1.83 5/73 22813
/proc/meminfo: memFree=1456216/2055920 swapFree=4192812/4192956
[pid=22812] ppid=22810 vsize=12200 CPUtime=0.09
/proc/22812/stat : 22812 (solver) R 22810 22812 21426 0 -1 4194304 2138 0 0 0 9 0 0 0 18 0 1 0 182109438 12492800 2106 18446744073709551615 134512640 134893233 4294956656 18446744073709551615 134646946 0 0 4096 0 0 0 0 17 1 0 0
/proc/22812/statm: 3050 2106 718 92 0 1394 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12200

Child status: 0
Real time (s): 0.223419
CPU time (s): 0.215966
CPU user time (s): 0.206968
CPU system time (s): 0.008998
CPU usage (%): 96.6641
Max. virtual memory (cumulated for all children) (KiB): 12232

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.206968
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2158
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= 13
involuntary context switches= 4

runsolver used 0.001999 s user time and 0.007998 s system time

The end

Launcher Data (download as text)

Begin job on node60 on Tue Jan  9 10:05:16 UTC 2007


IDJOB= 235296
IDBENCH= 6756
FILE ID= node60/235296-1168337115

PBS_JOBID= 3503353

Free space on /tmp= 66558 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-10/os-taillard-10-105-5.xml
COMMAND LINE= /tmp/evaluation/235296-1168337115/tramontane/bin/solver /tmp/evaluation/235296-1168337115/unknown.xml -res geom -f 3 -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node60/watcher-235296-1168337115 -o ROOT/results/node60/solver-235296-1168337115 -C 1800 -M 900  /tmp/evaluation/235296-1168337115/tramontane/bin/solver /tmp/evaluation/235296-1168337115/unknown.xml -res geom -f 3 -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  7b8cab6ec70ebd45de2b8c6678d6df2b

RANDOM SEED= 517887140

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.236
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		: 3000.236
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:       1456632 kB
Buffers:         51320 kB
Cached:         447120 kB
SwapCached:          0 kB
Active:         134436 kB
Inactive:       403756 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1456632 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3076 kB
Writeback:           0 kB
Mapped:          53284 kB
Slab:            46448 kB
Committed_AS:  4463968 kB
PageTables:       1848 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= 66558 MiB



End job on node60 on Tue Jan  9 10:05:16 UTC 2007