Trace number 2085684

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 0.3.2UNSAT 0.143977 0.145589

DiagnosticValue
ASSIGNMENTS318

General information on the benchmark

Namecsp/graphColoring/insertion/full-insertion/
normalized-1-fullins-5-4.xml
MD5SUM9da4628fc87df12d83b1d0cb46c9605a
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 benchmark0.143977
Satisfiable
(Un)Satisfiability was proved
Number of variables282
Number of constraints3247
Maximum constraint arity2
Maximum domain size4
Number of constraints which are defined in extension0
Number of constraints which are defined in intension3247
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.00/0.01	c Seed is 908247014
0.00/0.01	c Constructing HOME/instance-2085684-1247726276.xml  with 3247 constraints
0.08/0.11	c Solving 318 backtracks 5 restarts
0.08/0.14	s UNSATISFIABLE
0.08/0.14	d ASSIGNMENTS 318

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-2085684-1247726276/watcher-2085684-1247726276 -o /tmp/evaluation-result-2085684-1247726276/solver-2085684-1247726276 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 908247014 HOME/instance-2085684-1247726276.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: 2.01 1.99 1.99 4/82 15232
/proc/meminfo: memFree=1633632/2055920 swapFree=4192812/4192956
[pid=15232] ppid=15230 vsize=5356 CPUtime=0
/proc/15232/stat : 15232 (pcssolve) S 15230 15232 14707 0 -1 4194304 305 0 0 0 0 0 0 0 20 0 1 0 59692962 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 243665527620 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/15232/statm: 1339 242 201 169 0 50 0
[pid=15233] ppid=15232 vsize=5356 CPUtime=0
/proc/15233/stat : 15233 (pcssolve) R 15232 15232 14707 0 -1 4194368 22 0 0 0 0 0 0 0 21 0 1 0 59692963 5484544 243 996147200 4194304 4889804 548682068800 18446744073709551615 243665530151 0 0 4096 0 0 0 0 17 0 0 0
/proc/15233/statm: 1339 243 202 169 0 50 0
[pid=15234] ppid=15232 vsize=3676 CPUtime=0
/proc/15234/stat : 15234 (grep) S 15232 15232 14707 0 -1 4194304 154 0 0 0 0 0 0 0 20 0 1 0 59692963 3764224 121 996147200 4194304 4274172 548682069040 18446744073709551615 243665698898 0 0 4096 0 18446744071563648864 0 0 17 1 0 0
/proc/15234/statm: 919 121 99 19 0 43 0

[startup+0.0581511 s]
/proc/loadavg: 2.01 1.99 1.99 4/82 15232
/proc/meminfo: memFree=1633632/2055920 swapFree=4192812/4192956
[pid=15232] ppid=15230 vsize=4632 CPUtime=0.03
/proc/15232/stat : 15232 (pcs.small) R 15230 15232 14707 0 -1 4194304 884 822 0 0 3 0 0 0 24 0 1 0 59692962 4743168 493 996147200 134512640 135095119 4294956304 18446744073709551615 4159189327 0 0 4096 0 0 0 0 17 0 0 0
/proc/15232/statm: 1158 493 373 142 0 112 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 4632

[startup+0.102144 s]
/proc/loadavg: 2.01 1.99 1.99 4/82 15232
/proc/meminfo: memFree=1633632/2055920 swapFree=4192812/4192956
[pid=15232] ppid=15230 vsize=5024 CPUtime=0.08
/proc/15232/stat : 15232 (pcs.small) R 15230 15232 14707 0 -1 4194304 963 822 0 0 8 0 0 0 24 0 1 0 59692962 5144576 572 996147200 134512640 135095119 4294956304 18446744073709551615 4160171962 0 0 4096 0 0 0 0 17 0 0 0
/proc/15232/statm: 1256 572 373 142 0 210 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5024

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

Child status: 0
Real time (s): 0.145589
CPU time (s): 0.143977
CPU user time (s): 0.12998
CPU system time (s): 0.013997
CPU usage (%): 98.8928
Max. virtual memory (cumulated for all children) (KiB): 5024

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.12998
system time used= 0.013997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1817
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= 22
involuntary context switches= 15

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node84 at 2009-07-16 08:37:56
IDJOB=2085684
IDBENCH=58479
IDSOLVER=733
FILE ID=node84/2085684-1247726276
PBS_JOBID= 9521598
Free space on /tmp= 66180 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/graphColoring/insertion/full-insertion/normalized-1-fullins-5-4.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2085684-1247726276/watcher-2085684-1247726276 -o /tmp/evaluation-result-2085684-1247726276/solver-2085684-1247726276 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 908247014 HOME/instance-2085684-1247726276.xml

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

MD5SUM BENCH= 9da4628fc87df12d83b1d0cb46c9605a
RANDOM SEED=908247014

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:       1634112 kB
Buffers:         75576 kB
Cached:         215260 kB
SwapCached:          0 kB
Active:         126560 kB
Inactive:       206564 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1634112 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4616 kB
Writeback:           0 kB
Mapped:          62620 kB
Slab:            73872 kB
Committed_AS:   541096 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= 66180 MiB
End job on node84 at 2009-07-16 08:37:56