Trace number 216609

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
VALCSP 3.0SAT 0.065989 0.073136

DiagnosticValue
CHECKS465505
NODES200

General information on the benchmark

Namerlfap/rlfapScensMod/
scen6-w1.xml
MD5SUMe4761551e00079c0c6c5437557356554
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 benchmark0.148977
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables200
Number of constraints319
Maximum constraint arity2
Maximum domain size44
Number of constraints which are defined in extension0
Number of constraints which are defined in intension319
Global constraints used (with number of constraints)

Solver Data (download as text)

0.07	s SATISFIABLE
0.07	v 16 254 428 666 16 254 16 254 16 254 16 254 414 652 100 338 254 16 16 254 694 456 30 268 680 442 16 254 16 254 16 254 470 708 526 764 652 414 16 254 498 736 442 680 254 16 30 268 16 254 16 254 16 254 16 254 254 16 352 114 254 16 30 268 254 16 16 254 414 652 16 254 16 254 254 16 30 268 512 750 30 268 666 428 16 254 666 428 764 526 268 30 30 268 30 268 30 268 268 30 414 652 498 736 498 736 254 16 414 652 16 254 526 764 512 750 30 268 86 324 100 338 484 722 526 764 268 30 428 666 268 30 512 750 428 666 666 428 268 30 428 666 30 268 268 30 708 470 254 16 16 254 296 58 16 254 694 456 512 750 652 414 722 484 778 540 324 86 30 268 764 526 498 736 666 428 16 254 16 254 254 16 428 666 736 498 30 268 470 708 268 30 470 708 268 30 680 442 30 268 
0.07	d CHECKS 465505
0.07	d NODES 200
0.07

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/node20/watcher-216609-1168243579 -o ROOT/results/node20/solver-216609-1168243579 -C 1800 -M 900 /tmp/evaluation/216609-1168243579/VALCSP /tmp/evaluation/216609-1168243579/unknown.xml 

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: 1.03 1.00 1.21 5/87 19427
/proc/meminfo: memFree=1842560/2055920 swapFree=4170192/4192956
[pid=19426] ppid=19424 vsize=1864 CPUtime=0
/proc/19426/stat : 19426 (VALCSP) R 19424 19426 19162 0 -1 4194304 223 0 0 0 0 0 0 0 20 0 1 0 172752482 1908736 201 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 8052461 0 0 4096 0 0 0 0 17 1 0 0
/proc/19426/statm: 466 201 62 8 0 138 0

Child status: 0
Real time (s): 0.073136
CPU time (s): 0.065989
CPU user time (s): 0.058991
CPU system time (s): 0.006998
CPU usage (%): 90.2278
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.058991
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 944
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= 8
involuntary context switches= 4

runsolver used 0.003999 s user time and 0.005999 s system time

The end

Launcher Data (download as text)

Begin job on node20 on Mon Jan  8 08:06:19 UTC 2007


IDJOB= 216609
IDBENCH= 5090
FILE ID= node20/216609-1168243579

PBS_JOBID= 3481785

Free space on /tmp= 66557 MiB

BENCH NAME= HOME/pub/bench/CPAI06/rlfap/rlfapScensMod/scen6-w1.xml
COMMAND LINE= /tmp/evaluation/216609-1168243579/VALCSP /tmp/evaluation/216609-1168243579/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node20/watcher-216609-1168243579 -o ROOT/results/node20/solver-216609-1168243579 -C 1800 -M 900  /tmp/evaluation/216609-1168243579/VALCSP /tmp/evaluation/216609-1168243579/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  e4761551e00079c0c6c5437557356554

RANDOM SEED= 527516871

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		: 3000.216
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		: 3000.216
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:       1842976 kB
Buffers:         30144 kB
Cached:          96920 kB
SwapCached:       3428 kB
Active:         101016 kB
Inactive:        58524 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1842976 kB
SwapTotal:     4192956 kB
SwapFree:      4170192 kB
Dirty:            1724 kB
Writeback:           0 kB
Mapped:          48492 kB
Slab:            38164 kB
Committed_AS:  3625340 kB
PageTables:       2352 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= 66557 MiB



End job on node20 on Mon Jan  8 08:06:19 UTC 2007