Trace number 2085021

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
Mistral 1.545UNSAT 0.655899 0.664406

DiagnosticValue
ASSIGNMENTS0
CHECKS8
NODES0

General information on the benchmark

Namecsp/graphColoring/leighton/leighton-25/
normalized-lei450-25d-15.xml
MD5SUM917981834808c159ee00e186d5eaaf39
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.620905
Satisfiable
(Un)Satisfiability was proved
Number of variables450
Number of constraints17425
Maximum constraint arity2
Maximum domain size15
Number of constraints which are defined in extension0
Number of constraints which are defined in intension17425
Global constraints used (with number of constraints)

Solver Data 

0.18/0.20	c mistral version 1.545
0.58/0.63	s UNSATISFIABLE
0.58/0.63	d CHECKS 8
0.58/0.63	d ASSIGNMENTS 0
0.58/0.63	d NODES 0 BACKTRACKS 0 FAILURES 0 RUNTIME 1.33357e-17 TOTALTIME 0.61 NODES/s 0 CHECKS/s 5.99894e+17

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2085021-1247380779/watcher-2085021-1247380779 -o /tmp/evaluation-result-2085021-1247380779/solver-2085021-1247380779 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2085021-1247380779.xml 

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): 2000 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


[startup+0 s]
/proc/loadavg: 1.93 1.98 1.99 3/74 23750
/proc/meminfo: memFree=1739152/2055920 swapFree=4191904/4192956
[pid=23750] ppid=23748 vsize=18576 CPUtime=0
/proc/23750/stat : 23750 (runsolver) R 23748 23750 23677 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 25140466 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 244276849959 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/23750/statm: 4644 284 249 26 0 2626 0

[startup+0.131926 s]
/proc/loadavg: 1.93 1.98 1.99 3/74 23750
/proc/meminfo: memFree=1739152/2055920 swapFree=4191904/4192956
[pid=23750] ppid=23748 vsize=5840 CPUtime=0.11
/proc/23750/stat : 23750 (ld-linux.so.2) R 23748 23750 23677 0 -1 4194304 662 0 0 0 11 0 0 0 18 0 1 0 25140466 5980160 641 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157381179 0 0 4096 0 0 0 0 17 1 0 0
/proc/23750/statm: 1460 642 375 29 0 275 0
Current children cumulated CPU time (s) 0.11
Current children cumulated vsize (KiB) 5840

[startup+0.201931 s]
/proc/loadavg: 1.93 1.98 1.99 3/74 23750
/proc/meminfo: memFree=1739152/2055920 swapFree=4191904/4192956
[pid=23750] ppid=23748 vsize=6224 CPUtime=0.18
/proc/23750/stat : 23750 (ld-linux.so.2) R 23748 23750 23677 0 -1 4194304 776 0 0 0 18 0 0 0 18 0 1 0 25140466 6373376 755 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157381179 0 0 4096 0 0 0 0 17 1 0 0
/proc/23750/statm: 1556 755 375 29 0 371 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 6224

[startup+0.301942 s]
/proc/loadavg: 1.93 1.98 1.99 3/74 23750
/proc/meminfo: memFree=1739152/2055920 swapFree=4191904/4192956
[pid=23750] ppid=23748 vsize=6864 CPUtime=0.28
/proc/23750/stat : 23750 (ld-linux.so.2) R 23748 23750 23677 0 -1 4194304 937 0 0 0 28 0 0 0 19 0 1 0 25140466 7028736 916 996147200 1448431616 1448550632 4294956208 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/23750/statm: 1716 916 375 29 0 531 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6864

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

[startup+0.401952 s]
/proc/loadavg: 1.93 1.98 1.99 3/74 23750
/proc/meminfo: memFree=1739152/2055920 swapFree=4191904/4192956
[pid=23750] ppid=23748 vsize=7504 CPUtime=0.38
/proc/23750/stat : 23750 (ld-linux.so.2) R 23748 23750 23677 0 -1 4194304 1097 0 0 0 38 0 0 0 19 0 1 0 25140466 7684096 1076 996147200 1448431616 1448550632 4294956208 18446744073709551615 134615521 0 0 4096 0 0 0 0 17 1 0 0
/proc/23750/statm: 1876 1077 375 29 0 691 0
Current children cumulated CPU time (s) 0.38
Current children cumulated vsize (KiB) 7504

[startup+0.601977 s]
/proc/loadavg: 1.93 1.98 1.99 3/74 23750
/proc/meminfo: memFree=1739152/2055920 swapFree=4191904/4192956
[pid=23750] ppid=23748 vsize=10852 CPUtime=0.58
/proc/23750/stat : 23750 (ld-linux.so.2) R 23748 23750 23677 0 -1 4194304 1961 0 0 0 57 1 0 0 21 0 1 0 25140466 11112448 1872 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157416336 0 0 4096 0 0 0 0 17 1 0 0
/proc/23750/statm: 2713 1872 386 29 0 1528 0
Current children cumulated CPU time (s) 0.58
Current children cumulated vsize (KiB) 10852

Child status: 0
Real time (s): 0.664406
CPU time (s): 0.655899
CPU user time (s): 0.634903
CPU system time (s): 0.020996
CPU usage (%): 98.7196
Max. virtual memory (cumulated for all children) (KiB): 10852

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.634903
system time used= 0.020996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3101
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= 24
involuntary context switches= 6

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node63 at 2009-07-12 08:39:39
IDJOB=2085021
IDBENCH=58273
IDSOLVER=769
FILE ID=node63/2085021-1247380779
PBS_JOBID= 9507264
Free space on /tmp= 66212 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/graphColoring/leighton/leighton-25/normalized-lei450-25d-15.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2085021-1247380779/watcher-2085021-1247380779 -o /tmp/evaluation-result-2085021-1247380779/solver-2085021-1247380779 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2085021-1247380779.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 917981834808c159ee00e186d5eaaf39
RANDOM SEED=616737350

node63.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		: 3000.232
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		: 3000.232
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1739632 kB
Buffers:         44228 kB
Cached:         170800 kB
SwapCached:        260 kB
Active:         162260 kB
Inactive:        99912 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1739632 kB
SwapTotal:     4192956 kB
SwapFree:      4191904 kB
Dirty:            3532 kB
Writeback:           0 kB
Mapped:          57712 kB
Slab:            39164 kB
Committed_AS:   210020 kB
PageTables:       1960 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66212 MiB
End job on node63 at 2009-07-12 08:39:40