Trace number 1089810

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-option 1.314UNSAT 0.214967 0.213749

DiagnosticValue
ASSIGNMENTS0
CHECKS2

General information on the benchmark

Namecsp/graphColoring/leighton/leighton-5/
normalized-lei450-05a-04.xml
MD5SUM9b02652f068c21dada85a83d70028d36
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 benchmark0.214967
Satisfiable
(Un)Satisfiability was proved
Number of variables450
Number of constraints5714
Maximum constraint arity2
Maximum domain size4
Number of constraints which are defined in extension0
Number of constraints which are defined in intension5714
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.00	c mistral-option version 1.313
0.09/0.20	s UNSATISFIABLE
0.09/0.20	d CHECKS 2
0.09/0.20	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-1089810-1215269476/watcher-1089810-1215269476 -o /tmp/evaluation-result-1089810-1215269476/solver-1089810-1215269476 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1089810-1215269476.xml -heu dyn -sac 3 -ds 2 

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: 2.07 2.02 1.86 4/87 11958
/proc/meminfo: memFree=1752888/2055920 swapFree=4180584/4192956
[pid=11958] ppid=11956 vsize=4588 CPUtime=0
/proc/11958/stat : 11958 (xsolve) R 11956 11958 11562 0 -1 4194304 436 0 0 0 0 0 0 0 18 0 1 0 2005897340 4698112 402 996147200 134512640 135239763 4294956192 18446744073709551615 134548880 0 0 4096 0 0 0 0 17 1 0 0
/proc/11958/statm: 1147 405 349 177 0 50 0

[startup+0.064397 s]
/proc/loadavg: 2.07 2.02 1.86 4/87 11958
/proc/meminfo: memFree=1752888/2055920 swapFree=4180584/4192956
[pid=11958] ppid=11956 vsize=5232 CPUtime=0.06
/proc/11958/stat : 11958 (xsolve) R 11956 11958 11562 0 -1 4194304 611 0 0 0 6 0 0 0 18 0 1 0 2005897340 5357568 577 996147200 134512640 135239763 4294956192 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/11958/statm: 1308 577 373 177 0 211 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 5232

[startup+0.101402 s]
/proc/loadavg: 2.07 2.02 1.86 4/87 11958
/proc/meminfo: memFree=1752888/2055920 swapFree=4180584/4192956
[pid=11958] ppid=11956 vsize=5488 CPUtime=0.09
/proc/11958/stat : 11958 (xsolve) R 11956 11958 11562 0 -1 4194304 686 0 0 0 9 0 0 0 18 0 1 0 2005897340 5619712 652 996147200 134512640 135239763 4294956192 18446744073709551615 7169659 0 0 4096 0 0 0 0 17 1 0 0
/proc/11958/statm: 1372 652 373 177 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+0.201414 s]
/proc/loadavg: 2.07 2.02 1.86 4/87 11958
/proc/meminfo: memFree=1752888/2055920 swapFree=4180584/4192956
[pid=11958] ppid=11956 vsize=8188 CPUtime=0.19
/proc/11958/stat : 11958 (xsolve) R 11956 11958 11562 0 -1 4194304 1384 0 0 0 19 0 0 0 18 0 1 0 2005897340 8384512 1350 996147200 134512640 135239763 4294956192 18446744073709551615 4158721952 0 0 4096 0 0 0 0 17 1 0 0
/proc/11958/statm: 2047 1350 409 177 0 950 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 8188

Child status: 0
Real time (s): 0.213749
CPU time (s): 0.214967
CPU user time (s): 0.208968
CPU system time (s): 0.005999
CPU usage (%): 100.57
Max. virtual memory (cumulated for all children) (KiB): 8188

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.208968
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= 1393
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= 12

runsolver used 0.001999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node75 at 2008-07-05 16:51:16
IDJOB=1089810
IDBENCH=58316
IDSOLVER=357
FILE ID=node75/1089810-1215269476
PBS_JOBID= 7882204
Free space on /tmp= 66560 MiB

SOLVER NAME= Mistral-option 1.314
BENCH NAME= CPAI08/csp/graphColoring/leighton/leighton-5/normalized-lei450-05a-04.xml
COMMAND LINE= HOME/xsolve BENCHNAME -heu dyn -sac 3 -ds 2 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1089810-1215269476/watcher-1089810-1215269476 -o /tmp/evaluation-result-1089810-1215269476/solver-1089810-1215269476 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1089810-1215269476.xml -heu dyn -sac 3 -ds 2 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 9b02652f068c21dada85a83d70028d36
RANDOM SEED=932146444

node75.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		: 3000.229
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		: 3000.229
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:       1753368 kB
Buffers:         18968 kB
Cached:         147664 kB
SwapCached:       6768 kB
Active:         180848 kB
Inactive:        68156 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1753368 kB
SwapTotal:     4192956 kB
SwapFree:      4180584 kB
Dirty:            1980 kB
Writeback:           0 kB
Mapped:          99656 kB
Slab:            37796 kB
Committed_AS:  4368768 kB
PageTables:       2548 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= 66556 MiB
End job on node75 at 2008-07-05 16:51:16