Trace number 1089339

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
MDG-noprobe 2008-06-27UNSAT 0.294954 0.296062

DiagnosticValue
ASSIGNMENTS0
CHECKS1

General information on the benchmark

Namecsp/graphColoring/leighton/leighton-25/
normalized-lei450-25a-23.xml
MD5SUMdb98c53488e7b2aca62f1c75d3774cd9
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 benchmark0.294954
Satisfiable
(Un)Satisfiability was proved
Number of variables450
Number of constraints8260
Maximum constraint arity2
Maximum domain size23
Number of constraints which are defined in extension0
Number of constraints which are defined in intension8260
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.00	c mistral-prime version 1.313
0.19/0.28	s UNSATISFIABLE
0.19/0.28	d CHECKS 1
0.19/0.28	d ASSIGNMENTS 0

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1089339-1215267741/watcher-1089339-1215267741 -o /tmp/evaluation-result-1089339-1215267741/solver-1089339-1215267741 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1089339-1215267741.xml -heu dom/wdeg -res no 

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): 2200 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.00 2.00 2.00 4/87 18038
/proc/meminfo: memFree=1623952/2055920 swapFree=4179164/4192956
[pid=18038] ppid=18036 vsize=4588 CPUtime=0
/proc/18038/stat : 18038 (xsolve) R 18036 18038 17093 0 -1 4194304 428 0 0 0 0 0 0 0 21 0 1 0 138454707 4698112 394 996147200 134512640 135239859 4294956208 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/18038/statm: 1147 400 344 177 0 50 0

[startup+0.070801 s]
/proc/loadavg: 2.00 2.00 2.00 4/87 18038
/proc/meminfo: memFree=1623952/2055920 swapFree=4179164/4192956
[pid=18038] ppid=18036 vsize=5232 CPUtime=0.06
/proc/18038/stat : 18038 (xsolve) R 18036 18038 17093 0 -1 4194304 623 0 0 0 6 0 0 0 21 0 1 0 138454707 5357568 589 996147200 134512640 135239859 4294956208 18446744073709551615 12203643 0 0 4096 0 0 0 0 17 1 0 0
/proc/18038/statm: 1308 589 368 177 0 211 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 5232

[startup+0.1018 s]
/proc/loadavg: 2.00 2.00 2.00 4/87 18038
/proc/meminfo: memFree=1623952/2055920 swapFree=4179164/4192956
[pid=18038] ppid=18036 vsize=5488 CPUtime=0.09
/proc/18038/stat : 18038 (xsolve) R 18036 18038 17093 0 -1 4194304 686 0 0 0 9 0 0 0 21 0 1 0 138454707 5619712 652 996147200 134512640 135239859 4294956208 18446744073709551615 12203643 0 0 4096 0 0 0 0 17 1 0 0
/proc/18038/statm: 1372 652 368 177 0 275 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5488

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

[startup+0.201811 s]
/proc/loadavg: 2.00 2.00 2.00 4/87 18038
/proc/meminfo: memFree=1623952/2055920 swapFree=4179164/4192956
[pid=18038] ppid=18036 vsize=6384 CPUtime=0.19
/proc/18038/stat : 18038 (xsolve) R 18036 18038 17093 0 -1 4194304 894 0 0 0 19 0 0 0 22 0 1 0 138454707 6537216 860 996147200 134512640 135239859 4294956208 18446744073709551615 12203643 0 0 4096 0 0 0 0 17 1 0 0
/proc/18038/statm: 1596 860 368 177 0 499 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 6384

Child status: 0
Real time (s): 0.296062
CPU time (s): 0.294954
CPU user time (s): 0.282956
CPU system time (s): 0.011998
CPU usage (%): 99.6257
Max. virtual memory (cumulated for all children) (KiB): 6384

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.282956
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1985
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= 7
involuntary context switches= 4

runsolver used 0.004999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node76 at 2008-07-05 16:22:21
IDJOB=1089339
IDBENCH=58255
IDSOLVER=343
FILE ID=node76/1089339-1215267741
PBS_JOBID= 7882131
Free space on /tmp= 66480 MiB

SOLVER NAME= MDG-noprobe 2008-06-27
BENCH NAME= CPAI08/csp/graphColoring/leighton/leighton-25/normalized-lei450-25a-23.xml
COMMAND LINE= HOME/xsolve BENCHNAME -heu dom/wdeg -res no 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1089339-1215267741/watcher-1089339-1215267741 -o /tmp/evaluation-result-1089339-1215267741/solver-1089339-1215267741 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1089339-1215267741.xml -heu dom/wdeg -res no 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= db98c53488e7b2aca62f1c75d3774cd9
RANDOM SEED=1272171510

node76.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		: 3000.222
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		: 3000.222
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:       1624368 kB
Buffers:         50876 kB
Cached:         230652 kB
SwapCached:       7608 kB
Active:         236204 kB
Inactive:       130820 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1624368 kB
SwapTotal:     4192956 kB
SwapFree:      4179164 kB
Dirty:            1928 kB
Writeback:           0 kB
Mapped:         101784 kB
Slab:            49292 kB
Committed_AS:  1238364 kB
PageTables:       2212 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= 66480 MiB
End job on node76 at 2008-07-05 16:22:21