Trace number 253082

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
Mistral 2006-12-04SAT 2.72558 2.73945

General information on the benchmark

Namecoloring/
le-450-5a-5-ext.xml
MD5SUM9fe0c7fcb0b8b7563d0edd080f87447a
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.342947
SatisfiableYES
(Un)Satisfiability was proved
Number of variables450
Number of constraints5714
Maximum constraint arity2
Maximum domain size5
Number of constraints which are defined in extension5714
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.10	c 
0.10	c Parsing xml file
0.10	c 	domains...............    0
0.10	c 	variables.............    0
0.10	c 	relations.............    0
0.10	c 	constraints...........  0.2
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 = No restart
0.22	c 
0.22	c Solving
0.22	c
2.72	s SATISFIABLE
2.72	v 1 4 2 0 0 1 4 2 3 3 1 4 2 3 0 1 4 2 3 3 1 4 2 3 0 1 4 2 3 0 1 4 2 3 3 1 4 2 3 0 1 4 2 3 3 1 4 2 3 0 1 4 2 3 0 1 4 2 3 0 1 4 2 3 0 1 4 2 3 0 1 4 2 3 0 1 4 2 3 0 1 4 2 0 0 1 4 2 0 0 1 4 2 0 0 1 4 2 3 3 1 4 2 3 0 1 4 2 0 3 1 4 2 0 0 1 4 2 0 0 1 4 2 3 3 1 4 2 3 0 1 4 2 3 3 1 4 2 3 0 1 4 2 3 0 1 4 2 3 0 1 4 2 3 0 1 4 2 3 0 1 4 2 3 0 1 4 2 3 0 1 4 2 3 0 1 4 2 3 0 1 4 2 3 0 1 4 2 3 3 1 4 2 3 0 1 4 2 0 3 1 4 2 0 0 1 4 2 3 0 1 4 2 3 3 1 4 2 3 0 1 4 2 0 3 1 4 2 0 0 1 4 2 3 0 1 4 2 3 0 1 4 2 3 0 1 4 2 3 0 1 4 2 3 0 1 4 2 3 0 1 4 2 3 0 1 4 2 3 0 1 4 2 3 0 1 4 2 3 3 1 4 2 3 0 1 4 2 3 3 1 4 2 3 0 1 4 2 3 0 1 4 2 3 3 1 4 2 0 0 1 4 2 0 3 1 4 2 0 0 1 4 2 3 0 1 4 2 3 0 1 4 2 0 0 1 4 2 0 0 1 4 2 0 0 1 4 2 3 0 1 4 2 3 0 1 4 2 3 0 1 4 2 3 0 1 4 2 3 3 1 4 2 3 0 1 4 2 3 3 1 4 2 3 0 1 4 2 3 0 1 4 2 3 3 1 4 2 3 0 1 4 2 3 3 1 4 2 3 0 1 4 2 3 0 1 4 2 3 0 1 4 2 0 0 1 4 2 0 0 1 4 2 3 0 1 4 2 3 0 1 4 2 3 0 1 4 2 0 0
2.72	d          SAT      2387 BTS       2.5 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/node76/watcher-253082-1168409767 -o ROOT/results/node76/solver-253082-1168409767 -C 1800 -M 900 /tmp/evaluation/253082-1168409767/mistral/bin/solver /tmp/evaluation/253082-1168409767/unknown.xml -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: 0.87 1.42 1.74 5/79 24277
/proc/meminfo: memFree=1623368/2055888 swapFree=4095388/4096564
[pid=24276] ppid=24274 vsize=6800 CPUtime=0
/proc/24276/stat : 24276 (solver) R 24274 24276 23600 0 -1 4194304 422 0 0 0 0 0 0 0 20 0 1 0 189373999 6963200 402 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4788543 0 0 4096 0 0 0 0 17 1 0 0
/proc/24276/statm: 1700 402 363 92 0 30 0

[startup+0.103496 s]
/proc/loadavg: 0.87 1.42 1.74 5/79 24277
/proc/meminfo: memFree=1623368/2055888 swapFree=4095388/4096564
[pid=24276] ppid=24274 vsize=7712 CPUtime=0.09
/proc/24276/stat : 24276 (solver) R 24274 24276 23600 0 -1 4194304 1002 0 0 0 9 0 0 0 20 0 1 0 189373999 7897088 971 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 5253163 0 0 4096 0 0 0 0 17 1 0 0
/proc/24276/statm: 1928 971 698 92 0 271 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7712

[startup+0.511572 s]
/proc/loadavg: 0.87 1.42 1.74 5/79 24277
/proc/meminfo: memFree=1623368/2055888 swapFree=4095388/4096564
[pid=24276] ppid=24274 vsize=9708 CPUtime=0.5
/proc/24276/stat : 24276 (solver) R 24274 24276 23600 0 -1 4194304 1518 0 0 0 50 0 0 0 25 0 1 0 189373999 9940992 1487 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134637481 0 0 4096 0 0 0 0 17 1 0 0
/proc/24276/statm: 2427 1487 710 92 0 770 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 9708

[startup+1.33173 s]
/proc/loadavg: 0.87 1.42 1.74 3/79 24277
/proc/meminfo: memFree=1620232/2055888 swapFree=4095388/4096564
[pid=24276] ppid=24274 vsize=9708 CPUtime=1.31
/proc/24276/stat : 24276 (solver) R 24274 24276 23600 0 -1 4194304 1518 0 0 0 131 0 0 0 25 0 1 0 189373999 9940992 1487 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134637510 0 0 4096 0 0 0 0 17 1 0 0
/proc/24276/statm: 2427 1487 710 92 0 770 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 9708

Child status: 0
Real time (s): 2.73945
CPU time (s): 2.72558
CPU user time (s): 2.71959
CPU system time (s): 0.005999
CPU usage (%): 99.4937
Max. virtual memory (cumulated for all children) (KiB): 9708

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.71959
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1532
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= 53

runsolver used 0.006998 s user time and 0.011998 s system time

The end

Launcher Data (download as text)

Begin job on node76 on Wed Jan 10 06:16:08 UTC 2007


IDJOB= 253082
IDBENCH= 12978
FILE ID= node76/253082-1168409767

PBS_JOBID= 3523445

Free space on /tmp= 66646 MiB

BENCH NAME= HOME/pub/bench/CPAI06/coloring/le-450-5a-5-ext.xml
COMMAND LINE= /tmp/evaluation/253082-1168409767/mistral/bin/solver /tmp/evaluation/253082-1168409767/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node76/watcher-253082-1168409767 -o ROOT/results/node76/solver-253082-1168409767 -C 1800 -M 900  /tmp/evaluation/253082-1168409767/mistral/bin/solver /tmp/evaluation/253082-1168409767/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  9fe0c7fcb0b8b7563d0edd080f87447a

RANDOM SEED= 220806666

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		: 3000.254
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	: 6006.17
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		: 3000.254
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	: 5999.42
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055888 kB
MemFree:       1623720 kB
Buffers:         47844 kB
Cached:         303196 kB
SwapCached:        384 kB
Active:         126552 kB
Inactive:       247356 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055888 kB
LowFree:       1623720 kB
SwapTotal:     4096564 kB
SwapFree:      4095388 kB
Dirty:            3400 kB
Writeback:           0 kB
Mapped:          33080 kB
Slab:            43828 kB
Committed_AS:  6977552 kB
PageTables:       1784 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66646 MiB



End job on node76 on Wed Jan 10 06:16:13 UTC 2007