Trace number 237168

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 0.897863 0.909994

DiagnosticValue
CHECKS253817
NODES73

General information on the benchmark

Namezhou/
route.xml
MD5SUMd9daffcc3e894d3adf564644d8f26071
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 benchmark2.57961
SatisfiableYES
(Un)Satisfiability was proved
Number of variables72
Number of constraints24492
Maximum constraint arity2
Maximum domain size28
Number of constraints which are defined in extension0
Number of constraints which are defined in intension24492
Global constraints used (with number of constraints)

Solver Data (download as text)

0.90	s SATISFIABLE
0.90	v 23 0 18 2 0 1 0 6 4 3 1 4 5 1 4 16 15 13 10 5 2 9 4 8 7 2 12 11 14 17 4 17 20 19 21 22 22 25 23 14 12 18 1 0 14 16 18 20 26 25 19 20 23 21 24 27 23 27 26 5 1 2 4 3 12 19 16 27 3 4 13 0 
0.90	d CHECKS 253817
0.90	d NODES 73
0.90

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/node38/watcher-237168-1168346883 -o ROOT/results/node38/solver-237168-1168346883 -C 1800 -M 900 /tmp/evaluation/237168-1168346883/VALCSP /tmp/evaluation/237168-1168346883/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: 2.04 2.02 1.82 5/81 10725
/proc/meminfo: memFree=1868136/2055920 swapFree=4192812/4192956
[pid=10724] ppid=10722 vsize=18540 CPUtime=0
/proc/10724/stat : 10724 (runsolver) R 10722 10724 9607 0 -1 4194368 16 0 0 0 0 0 0 0 21 0 1 0 183088007 18984960 279 18446744073709551615 4194304 4267372 548682069088 18446744073709551615 266890439975 0 0 4096 24578 0 0 0 17 1 0 0
/proc/10724/statm: 4635 279 244 17 0 2626 0

[startup+0.131296 s]
/proc/loadavg: 2.04 2.02 1.82 5/81 10725
/proc/meminfo: memFree=1868136/2055920 swapFree=4192812/4192956
[pid=10724] ppid=10722 vsize=6304 CPUtime=0.12
/proc/10724/stat : 10724 (VALCSP) R 10722 10724 9607 0 -1 4194304 1318 0 0 0 11 1 0 0 21 0 1 0 183088007 6455296 1296 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 9049472 0 0 4096 0 0 0 0 17 1 0 0
/proc/10724/statm: 1576 1296 63 8 0 1248 0
Current children cumulated CPU time (s) 0.12
Current children cumulated vsize (KiB) 6304

[startup+0.539376 s]
/proc/loadavg: 2.04 2.02 1.82 5/81 10725
/proc/meminfo: memFree=1868136/2055920 swapFree=4192812/4192956
[pid=10724] ppid=10722 vsize=22984 CPUtime=0.53
/proc/10724/stat : 10724 (VALCSP) R 10722 10724 9607 0 -1 4194304 5418 0 0 0 50 3 0 0 25 0 1 0 183088007 23535616 5396 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530340 0 0 4096 0 0 0 0 17 1 0 0
/proc/10724/statm: 5746 5396 65 8 0 5418 0
Current children cumulated CPU time (s) 0.53
Current children cumulated vsize (KiB) 22984

Child status: 0
Real time (s): 0.909994
CPU time (s): 0.897863
CPU user time (s): 0.847871
CPU system time (s): 0.049992
CPU usage (%): 98.6669
Max. virtual memory (cumulated for all children) (KiB): 35260

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.847871
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= 9118
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= 39

runsolver used 0.003999 s user time and 0.004999 s system time

The end

Launcher Data (download as text)

Begin job on node38 on Tue Jan  9 12:48:04 UTC 2007


IDJOB= 237168
IDBENCH= 6903
FILE ID= node38/237168-1168346883

PBS_JOBID= 3503450

Free space on /tmp= 66512 MiB

BENCH NAME= HOME/pub/bench/CPAI06/zhou/route.xml
COMMAND LINE= /tmp/evaluation/237168-1168346883/VALCSP /tmp/evaluation/237168-1168346883/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node38/watcher-237168-1168346883 -o ROOT/results/node38/solver-237168-1168346883 -C 1800 -M 900  /tmp/evaluation/237168-1168346883/VALCSP /tmp/evaluation/237168-1168346883/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  d9daffcc3e894d3adf564644d8f26071

RANDOM SEED= 946997020

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		: 3000.267
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		: 3000.267
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:       1868552 kB
Buffers:          6952 kB
Cached:          60436 kB
SwapCached:          0 kB
Active:         114068 kB
Inactive:        20156 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1868552 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            6800 kB
Writeback:           0 kB
Mapped:          85788 kB
Slab:            38088 kB
Committed_AS:  4916636 kB
PageTables:       2060 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= 66512 MiB



End job on node38 on Tue Jan  9 12:48:05 UTC 2007