Trace number 1071440

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 6.48001 6.54962

DiagnosticValue
ASSIGNMENTS3477
CHECKS3145880

General information on the benchmark

Namecsp/chessboardColoration/
normalized-cc-15-15-2.xml
MD5SUMd253e49a50bf50fec79c621cae233451
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark6.48001
Satisfiable
(Un)Satisfiability was proved
Number of variables225
Number of constraints11025
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension11025
Global constraints used (with number of constraints)

Solver Data (download as text)

0.09/0.10	c mistral-prime version 1.313
6.32/6.48	s UNSATISFIABLE
6.32/6.48	d CHECKS 3145878
6.32/6.48	d ASSIGNMENTS 3477

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-1071440-1215169105/watcher-1071440-1215169105 -o /tmp/evaluation-result-1071440-1215169105/solver-1071440-1215169105 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1071440-1215169105.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: 2.42 2.16 2.04 4/81 23910
/proc/meminfo: memFree=1560460/2055920 swapFree=4179028/4192956
[pid=23910] ppid=23908 vsize=820 CPUtime=0
/proc/23910/stat : 23910 (xsolve) R 23908 23910 22294 0 -1 4194304 39 0 0 0 0 0 0 0 19 0 1 0 1995883364 839680 25 996147200 134512640 135239859 4294956208 18446744073709551615 8921892 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/23910/statm: 205 25 19 177 0 3 0

[startup+0.0665799 s]
/proc/loadavg: 2.42 2.16 2.04 4/81 23910
/proc/meminfo: memFree=1560460/2055920 swapFree=4179028/4192956
[pid=23910] ppid=23908 vsize=5104 CPUtime=0.05
/proc/23910/stat : 23910 (xsolve) R 23908 23910 22294 0 -1 4194304 573 0 0 0 5 0 0 0 19 0 1 0 1995883364 5226496 539 996147200 134512640 135239859 4294956208 18446744073709551615 4158772194 0 0 4096 0 0 0 0 17 1 0 0
/proc/23910/statm: 1276 539 368 177 0 179 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 5104

[startup+0.101577 s]
/proc/loadavg: 2.42 2.16 2.04 4/81 23910
/proc/meminfo: memFree=1560460/2055920 swapFree=4179028/4192956
[pid=23910] ppid=23908 vsize=5236 CPUtime=0.09
/proc/23910/stat : 23910 (xsolve) R 23908 23910 22294 0 -1 4194304 630 0 0 0 9 0 0 0 19 0 1 0 1995883364 5361664 596 996147200 134512640 135239859 4294956208 18446744073709551615 9354922 0 0 4096 0 0 0 0 17 1 0 0
/proc/23910/statm: 1309 596 368 177 0 212 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5236

[startup+0.301599 s]
/proc/loadavg: 2.42 2.16 2.04 4/81 23910
/proc/meminfo: memFree=1560460/2055920 swapFree=4179028/4192956
[pid=23910] ppid=23908 vsize=6668 CPUtime=0.29
/proc/23910/stat : 23910 (xsolve) R 23908 23910 22294 0 -1 4194304 980 0 0 0 29 0 0 0 21 0 1 0 1995883364 6828032 946 996147200 134512640 135239859 4294956208 18446744073709551615 9363078 0 0 4096 0 0 0 0 17 1 0 0
/proc/23910/statm: 1667 946 368 177 0 570 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6668

[startup+0.701648 s]
/proc/loadavg: 2.42 2.16 2.04 4/81 23910
/proc/meminfo: memFree=1560460/2055920 swapFree=4179028/4192956
[pid=23910] ppid=23908 vsize=16336 CPUtime=0.68
/proc/23910/stat : 23910 (xsolve) R 23908 23910 22294 0 -1 4194304 3397 0 0 0 67 1 0 0 25 0 1 0 1995883364 16728064 3363 996147200 134512640 135239859 4294956208 18446744073709551615 9363219 0 0 4096 0 0 0 0 17 1 0 0
/proc/23910/statm: 4084 3363 381 177 0 2987 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 16336

[startup+1.50173 s]
/proc/loadavg: 2.42 2.16 2.04 3/82 23911
/proc/meminfo: memFree=1544644/2055920 swapFree=4179028/4192956
[pid=23910] ppid=23908 vsize=19592 CPUtime=1.47
/proc/23910/stat : 23910 (xsolve) R 23908 23910 22294 0 -1 4194304 4173 0 0 0 146 1 0 0 25 0 1 0 1995883364 20062208 4139 996147200 134512640 135239859 4294956208 18446744073709551615 134820016 0 0 4096 0 0 0 0 17 1 0 0
/proc/23910/statm: 4898 4139 386 177 0 3801 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 19592

[startup+3.10289 s]
/proc/loadavg: 2.42 2.16 2.04 3/82 23911
/proc/meminfo: memFree=1543748/2055920 swapFree=4179028/4192956
[pid=23910] ppid=23908 vsize=19592 CPUtime=3.06
/proc/23910/stat : 23910 (xsolve) R 23908 23910 22294 0 -1 4194304 4173 0 0 0 305 1 0 0 25 0 1 0 1995883364 20062208 4139 996147200 134512640 135239859 4294956208 18446744073709551615 134541296 0 0 4096 0 0 0 0 17 1 0 0
/proc/23910/statm: 4898 4139 386 177 0 3801 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 19592

[startup+6.30121 s]
/proc/loadavg: 2.47 2.17 2.05 3/82 23911
/proc/meminfo: memFree=1541636/2055920 swapFree=4179028/4192956
[pid=23910] ppid=23908 vsize=19592 CPUtime=6.22
/proc/23910/stat : 23910 (xsolve) R 23908 23910 22294 0 -1 4194304 4173 0 0 0 621 1 0 0 25 0 1 0 1995883364 20062208 4139 996147200 134512640 135239859 4294956208 18446744073709551615 134820029 0 0 4096 0 0 0 0 17 1 0 0
/proc/23910/statm: 4898 4139 386 177 0 3801 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 19592

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

[startup+6.50123 s]
/proc/loadavg: 2.47 2.17 2.05 3/82 23911
/proc/meminfo: memFree=1541124/2055920 swapFree=4179028/4192956
[pid=23910] ppid=23908 vsize=19592 CPUtime=6.42
/proc/23910/stat : 23910 (xsolve) R 23908 23910 22294 0 -1 4194304 4179 0 0 0 641 1 0 0 25 0 1 0 1995883364 20062208 4145 996147200 134512640 135239859 4294956208 18446744073709551615 4159148601 0 0 4096 0 0 0 0 17 1 0 0
/proc/23910/statm: 4898 4145 392 177 0 3801 0
Current children cumulated CPU time (s) 6.42
Current children cumulated vsize (KiB) 19592

Child status: 0
Real time (s): 6.54962
CPU time (s): 6.48001
CPU user time (s): 6.45902
CPU system time (s): 0.020996
CPU usage (%): 98.9372
Max. virtual memory (cumulated for all children) (KiB): 19592

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.45902
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= 4187
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= 149

runsolver used 0.012998 second user time and 0.026995 second system time

The end

Launcher Data (download as text)

Begin job on node36 at 2008-07-04 12:58:25
IDJOB=1071440
IDBENCH=56088
IDSOLVER=343
FILE ID=node36/1071440-1215169105
PBS_JOBID= 7881488
Free space on /tmp= 66548 MiB

SOLVER NAME= MDG-noprobe 2008-06-27
BENCH NAME= CPAI08/csp/chessboardColoration/normalized-cc-15-15-2.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-1071440-1215169105/watcher-1071440-1215169105 -o /tmp/evaluation-result-1071440-1215169105/solver-1071440-1215169105 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1071440-1215169105.xml -heu dom/wdeg -res no 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= d253e49a50bf50fec79c621cae233451
RANDOM SEED=2106564935

node36.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		: 3000.240
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		: 3000.240
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:       1560940 kB
Buffers:         80812 kB
Cached:         316128 kB
SwapCached:       7932 kB
Active:         248668 kB
Inactive:       178372 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1560940 kB
SwapTotal:     4192956 kB
SwapFree:      4179028 kB
Dirty:            5720 kB
Writeback:           0 kB
Mapped:          46308 kB
Slab:            53316 kB
Committed_AS:  3287420 kB
PageTables:       1808 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= 66548 MiB
End job on node36 at 2008-07-04 12:58:31