Trace number 2085652

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
pcs-restart 0.3.2UNSAT 3.44348 3.46222

DiagnosticValue
ASSIGNMENTS2456

General information on the benchmark

Namecsp/graphColoring/insertion/full-insertion/
normalized-4-fullins-5-6.xml
MD5SUM66166aaa52c5efc6681b748f5ca3a1e2
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 benchmark3.44348
Satisfiable
(Un)Satisfiability was proved
Number of variables4146
Number of constraints77305
Maximum constraint arity2
Maximum domain size6
Number of constraints which are defined in extension0
Number of constraints which are defined in intension77305
Global constraints used (with number of constraints)

Solver Data 

0.01/0.07	c small-domain mode
0.01/0.08	c Seed is 789781790
0.01/0.08	c Constructing HOME/instance-2085652-1247726264.xml  with 77305 constraints
2.76/2.80	c Solving 2456 backtracks 10 restarts
3.36/3.46	s UNSATISFIABLE
3.36/3.46	d ASSIGNMENTS 2456

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-2085652-1247726264/watcher-2085652-1247726264 -o /tmp/evaluation-result-2085652-1247726264/solver-2085652-1247726264 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 789781790 HOME/instance-2085652-1247726264.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: 1.91 1.97 1.99 4/82 14946
/proc/meminfo: memFree=1625392/2055920 swapFree=4192812/4192956
[pid=14946] ppid=14944 vsize=5356 CPUtime=0
/proc/14946/stat : 14946 (pcssolve) R 14944 14946 14707 0 -1 4194304 273 0 0 0 0 0 0 0 20 0 1 0 59691820 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 243665529503 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/14946/statm: 1339 241 200 169 0 50 0
[pid=14947] ppid=14946 vsize=5356 CPUtime=0
/proc/14947/stat : 14947 (pcssolve) R 14946 14946 14707 0 -1 4194368 0 0 0 0 0 0 0 0 20 0 1 0 59691820 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 243665529503 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/14947/statm: 1339 241 200 169 0 50 0

[startup+0.03058 s]
/proc/loadavg: 1.91 1.97 1.99 4/82 14946
/proc/meminfo: memFree=1625392/2055920 swapFree=4192812/4192956
[pid=14946] ppid=14944 vsize=5356 CPUtime=0.01
/proc/14946/stat : 14946 (pcssolve) R 14944 14946 14707 0 -1 4194304 309 317 0 0 0 0 0 1 21 0 1 0 59691820 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 243665529503 0 65538 4100 65536 0 0 0 17 0 0 0
/proc/14946/statm: 1339 242 201 169 0 50 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 5356

[startup+0.102588 s]
/proc/loadavg: 1.91 1.97 1.99 4/82 14946
/proc/meminfo: memFree=1625392/2055920 swapFree=4192812/4192956
[pid=14946] ppid=14944 vsize=4640 CPUtime=0.08
/proc/14946/stat : 14946 (pcs.small) R 14944 14946 14707 0 -1 4194304 858 822 0 0 2 0 4 2 24 0 1 0 59691820 4751360 467 996147200 134512640 135095119 4294956304 18446744073709551615 7220693 0 0 4096 0 0 0 0 17 0 0 0
/proc/14946/statm: 1160 467 356 142 0 114 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4640

[startup+0.301629 s]
/proc/loadavg: 1.91 1.97 1.99 4/82 14946
/proc/meminfo: memFree=1625392/2055920 swapFree=4192812/4192956
[pid=14946] ppid=14944 vsize=6292 CPUtime=0.27
/proc/14946/stat : 14946 (pcs.small) R 14944 14946 14707 0 -1 4194304 1288 822 0 0 21 0 4 2 25 0 1 0 59691820 6443008 864 996147200 134512640 135095119 4294956304 18446744073709551615 7221028 0 0 4096 0 0 0 0 17 0 0 0
/proc/14946/statm: 1573 864 373 142 0 527 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 6292

[startup+0.701699 s]
/proc/loadavg: 1.91 1.97 1.99 4/82 14946
/proc/meminfo: memFree=1625392/2055920 swapFree=4192812/4192956
[pid=14946] ppid=14944 vsize=9128 CPUtime=0.67
/proc/14946/stat : 14946 (pcs.small) R 14944 14946 14707 0 -1 4194304 2088 822 0 0 61 0 4 2 25 0 1 0 59691820 9347072 1470 996147200 134512640 135095119 4294956304 18446744073709551615 7218512 0 0 4096 0 0 0 0 17 0 0 0
/proc/14946/statm: 2282 1470 373 142 0 1236 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 9128

[startup+1.50285 s]
/proc/loadavg: 1.91 1.97 1.99 3/83 14952
/proc/meminfo: memFree=1619112/2055920 swapFree=4192812/4192956
[pid=14946] ppid=14944 vsize=14064 CPUtime=1.47
/proc/14946/stat : 14946 (pcs.small) R 14944 14946 14707 0 -1 4194304 3746 822 0 0 140 1 4 2 25 0 1 0 59691820 14401536 2620 996147200 134512640 135095119 4294956304 18446744073709551615 134706699 0 0 4096 0 0 0 0 17 0 0 0
/proc/14946/statm: 3516 2620 373 142 0 2470 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 14064

[startup+3.10114 s]
/proc/loadavg: 1.91 1.97 1.99 3/83 14952
/proc/meminfo: memFree=1612584/2055920 swapFree=4192812/4192956
[pid=14946] ppid=14944 vsize=21588 CPUtime=3.06
/proc/14946/stat : 14946 (pcs.small) R 14944 14946 14707 0 -1 4194304 6000 822 0 0 298 2 4 2 25 0 1 0 59691820 22106112 4271 996147200 134512640 135095119 4294956304 18446744073709551615 134616992 0 0 4096 0 0 0 0 17 0 0 0
/proc/14946/statm: 5397 4271 385 142 0 4351 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 21588

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

[startup+3.30617 s]
/proc/loadavg: 1.92 1.97 1.99 3/83 14952
/proc/meminfo: memFree=1609384/2055920 swapFree=4192812/4192956
[pid=14946] ppid=14944 vsize=21588 CPUtime=3.27
/proc/14946/stat : 14946 (pcs.small) R 14944 14946 14707 0 -1 4194304 6008 822 0 0 319 2 4 2 25 0 1 0 59691820 22106112 4279 996147200 134512640 135095119 4294956304 18446744073709551615 134617043 0 0 4096 0 0 0 0 17 0 0 0
/proc/14946/statm: 5397 4279 385 142 0 4351 0
Current children cumulated CPU time (s) 3.27
Current children cumulated vsize (KiB) 21588

[startup+3.40119 s]
/proc/loadavg: 1.92 1.97 1.99 3/83 14952
/proc/meminfo: memFree=1609384/2055920 swapFree=4192812/4192956
[pid=14946] ppid=14944 vsize=21588 CPUtime=3.36
/proc/14946/stat : 14946 (pcs.small) R 14944 14946 14707 0 -1 4194304 6011 822 0 0 328 2 4 2 25 0 1 0 59691820 22106112 4282 996147200 134512640 135095119 4294956304 18446744073709551615 134840289 0 0 4096 0 0 0 0 17 0 0 0
/proc/14946/statm: 5397 4282 385 142 0 4351 0
Current children cumulated CPU time (s) 3.36
Current children cumulated vsize (KiB) 21588

Child status: 0
Real time (s): 3.46222
CPU time (s): 3.44348
CPU user time (s): 3.38649
CPU system time (s): 0.056991
CPU usage (%): 99.4585
Max. virtual memory (cumulated for all children) (KiB): 21784

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.38648
system time used= 0.056991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6836
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= 16
involuntary context switches= 59

runsolver used 0.011998 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node84 at 2009-07-16 08:37:44
IDJOB=2085652
IDBENCH=58466
IDSOLVER=734
FILE ID=node84/2085652-1247726264
PBS_JOBID= 9521598
Free space on /tmp= 66172 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/graphColoring/insertion/full-insertion/normalized-4-fullins-5-6.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2085652-1247726264/watcher-2085652-1247726264 -o /tmp/evaluation-result-2085652-1247726264/solver-2085652-1247726264 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 789781790 HOME/instance-2085652-1247726264.xml

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

MD5SUM BENCH= 66166aaa52c5efc6681b748f5ca3a1e2
RANDOM SEED=789781790

node84.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		: 3000.259
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		: 3000.259
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:       1625808 kB
Buffers:         75048 kB
Cached:         224356 kB
SwapCached:          0 kB
Active:         134936 kB
Inactive:       206556 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1625808 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:           13300 kB
Writeback:           0 kB
Mapped:          62424 kB
Slab:            73800 kB
Committed_AS:   540804 kB
PageTables:       1856 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= 66172 MiB
End job on node84 at 2009-07-16 08:37:48