Trace number 2084497

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 0.3.2? 45.2281 45.4183

DiagnosticValue
ASSIGNMENTS1000000

General information on the benchmark

Namecsp/graphColoring/
myciel/normalized-myciel5-5.xml
MD5SUM4e9947661c937a66df0f73a5c98437a3
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 benchmark26.6879
Satisfiable
(Un)Satisfiability was proved
Number of variables47
Number of constraints236
Maximum constraint arity2
Maximum domain size5
Number of constraints which are defined in extension0
Number of constraints which are defined in intension236
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.18/0.20	c Seed is 1089488733
0.18/0.20	c Constructing HOME/instance-2084497-1247724779.xml  with 236 constraints
0.18/0.20	c Solving 1000001 backtracks 25 restarts
45.19/45.41	s UNKNOWN
45.19/45.41	c Too many backtracks
45.19/45.41	d ASSIGNMENTS 1000001

Verifier Data 

ERROR: Unexpected answer ! ('s SATISFIABLE'/'s UNSATISFIABLE' expected)
Got answer: UNKNOWN

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2084497-1247724779/watcher-2084497-1247724779 -o /tmp/evaluation-result-2084497-1247724779/solver-2084497-1247724779 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1089488733 HOME/instance-2084497-1247724779.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: 2.00 2.00 2.00 4/73 14749
/proc/meminfo: memFree=1265264/2055920 swapFree=4192812/4192956
[pid=14749] ppid=14747 vsize=5356 CPUtime=0
/proc/14749/stat : 14749 (pcssolve) S 14747 14749 12947 0 -1 4194304 305 0 0 0 0 0 0 0 18 0 1 0 59543204 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 214945030980 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/14749/statm: 1339 242 201 169 0 50 0
[pid=14750] ppid=14749 vsize=5356 CPUtime=0
/proc/14750/stat : 14750 (pcssolve) R 14749 14749 12947 0 -1 4194368 22 0 0 0 0 0 0 0 19 0 1 0 59543204 5484544 243 996147200 4194304 4889804 548682068800 18446744073709551615 214945033511 0 0 4096 0 0 0 0 17 1 0 0
/proc/14750/statm: 1339 243 202 169 0 50 0
[pid=14751] ppid=14749 vsize=5356 CPUtime=0
/proc/14751/stat : 14751 (pcssolve) R 14749 14749 12947 0 -1 4194368 22 0 0 0 0 0 0 0 20 0 1 0 59543204 5484544 244 996147200 4194304 4889804 548682068800 18446744073709551615 214945033511 0 0 4096 0 0 0 0 17 1 0 0
/proc/14751/statm: 1339 244 203 169 0 50 0

[startup+0.02875 s]
/proc/loadavg: 2.00 2.00 2.00 4/73 14749
/proc/meminfo: memFree=1265264/2055920 swapFree=4192812/4192956
[pid=14749] ppid=14747 vsize=4376 CPUtime=0.01
/proc/14749/stat : 14749 (pcs.small) R 14747 14749 12947 0 -1 4194304 834 819 0 0 1 0 0 0 17 0 1 0 59543204 4481024 443 996147200 134512640 135095119 4294956304 18446744073709551615 134582503 0 0 4096 0 0 0 0 17 0 0 0
/proc/14749/statm: 1094 443 385 142 0 48 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 4376

[startup+0.102759 s]
/proc/loadavg: 2.00 2.00 2.00 4/73 14749
/proc/meminfo: memFree=1265264/2055920 swapFree=4192812/4192956
[pid=14749] ppid=14747 vsize=4972 CPUtime=0.08
/proc/14749/stat : 14749 (pcs.small) R 14747 14749 12947 0 -1 4194304 975 819 0 0 8 0 0 0 18 0 1 0 59543204 5091328 584 996147200 134512640 135095119 4294956304 18446744073709551615 134584709 0 0 4096 0 0 0 0 17 0 0 0
/proc/14749/statm: 1243 584 385 142 0 197 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4972

[startup+0.301781 s]
/proc/loadavg: 2.00 2.00 2.00 4/73 14749
/proc/meminfo: memFree=1265264/2055920 swapFree=4192812/4192956
[pid=14749] ppid=14747 vsize=6792 CPUtime=0.28
/proc/14749/stat : 14749 (pcs.small) R 14747 14749 12947 0 -1 4194304 1562 819 0 0 28 0 0 0 19 0 1 0 59543204 6955008 975 996147200 134512640 135095119 4294956304 18446744073709551615 134615450 0 0 4096 0 0 0 0 17 0 0 0
/proc/14749/statm: 1698 975 385 142 0 652 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6792

[startup+0.701826 s]
/proc/loadavg: 2.00 2.00 2.00 4/73 14749
/proc/meminfo: memFree=1265264/2055920 swapFree=4192812/4192956
[pid=14749] ppid=14747 vsize=10420 CPUtime=0.67
/proc/14749/stat : 14749 (pcs.small) R 14747 14749 12947 0 -1 4194304 2711 819 0 0 67 0 0 0 23 0 1 0 59543204 10670080 1609 996147200 134512640 135095119 4294956304 18446744073709551615 134616997 0 0 4096 0 0 0 0 17 0 0 0
/proc/14749/statm: 2605 1609 385 142 0 1559 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 10420

[startup+1.50292 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 14755
/proc/meminfo: memFree=1258216/2055920 swapFree=4192812/4192956
[pid=14749] ppid=14747 vsize=16776 CPUtime=1.47
/proc/14749/stat : 14749 (pcs.small) R 14747 14749 12947 0 -1 4194304 4779 819 0 0 146 1 0 0 25 0 1 0 59543204 17178624 2907 996147200 134512640 135095119 4294956304 18446744073709551615 3036795 0 0 4096 0 0 0 0 17 0 0 0
/proc/14749/statm: 4194 2907 385 142 0 3148 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 16776

[startup+3.1011 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 14755
/proc/meminfo: memFree=1250984/2055920 swapFree=4192812/4192956
[pid=14749] ppid=14747 vsize=29480 CPUtime=3.06
/proc/14749/stat : 14749 (pcs.small) R 14747 14749 12947 0 -1 4194304 8868 819 0 0 303 3 0 0 25 0 1 0 59543204 30187520 5458 996147200 134512640 135095119 4294956304 18446744073709551615 3036795 0 0 4096 0 0 0 0 17 0 0 0
/proc/14749/statm: 7370 5458 385 142 0 6324 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 29480

[startup+6.30146 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 14755
/proc/meminfo: memFree=1227688/2055920 swapFree=4192812/4192956
[pid=14749] ppid=14747 vsize=53732 CPUtime=6.26
/proc/14749/stat : 14749 (pcs.small) R 14747 14749 12947 0 -1 4194304 16665 819 0 0 619 7 0 0 25 0 1 0 59543204 55021568 10181 996147200 134512640 135095119 4294956304 18446744073709551615 134589572 0 0 4096 0 0 0 0 17 0 0 0
/proc/14749/statm: 13433 10181 385 142 0 12387 0
Current children cumulated CPU time (s) 6.26
Current children cumulated vsize (KiB) 53732

[startup+12.7012 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 14755
/proc/meminfo: memFree=1188656/2055920 swapFree=4192812/4192956
[pid=14749] ppid=14747 vsize=102588 CPUtime=12.63
/proc/14749/stat : 14749 (pcs.small) R 14747 14749 12947 0 -1 4194304 32135 819 0 0 1248 15 0 0 25 0 1 0 59543204 105050112 19505 996147200 134512640 135095119 4294956304 18446744073709551615 134615460 0 0 4096 0 0 0 0 17 0 0 0
/proc/14749/statm: 25647 19505 385 142 0 24601 0
Current children cumulated CPU time (s) 12.63
Current children cumulated vsize (KiB) 102588

[startup+25.5016 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 14755
/proc/meminfo: memFree=1113712/2055920 swapFree=4192812/4192956
[pid=14749] ppid=14747 vsize=168484 CPUtime=25.38
/proc/14749/stat : 14749 (pcs.small) R 14747 14749 12947 0 -1 4194304 54550 819 0 0 2514 24 0 0 25 0 1 0 59543204 172527616 37823 996147200 134512640 135095119 4294956304 18446744073709551615 134638733 0 0 4096 0 0 0 0 17 0 0 0
/proc/14749/statm: 42121 37823 385 142 0 41075 0
Current children cumulated CPU time (s) 25.38
Current children cumulated vsize (KiB) 168484

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

[startup+38.3011 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 14755
/proc/meminfo: memFree=1067056/2055920 swapFree=4192812/4192956
[pid=14749] ppid=14747 vsize=229012 CPUtime=38.13
/proc/14749/stat : 14749 (pcs.small) R 14747 14749 12947 0 -1 4194304 75168 819 0 0 3782 31 0 0 25 0 1 0 59543204 234508288 50248 996147200 134512640 135095119 4294956304 18446744073709551615 134842733 0 0 4096 0 0 0 0 17 0 0 0
/proc/14749/statm: 57253 50248 385 142 0 56207 0
Current children cumulated CPU time (s) 38.13
Current children cumulated vsize (KiB) 229012

[startup+41.5015 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 14755
/proc/meminfo: memFree=1052656/2055920 swapFree=4192812/4192956
[pid=14749] ppid=14747 vsize=237600 CPUtime=41.31
/proc/14749/stat : 14749 (pcs.small) R 14747 14749 12947 0 -1 4194304 78600 819 0 0 4099 32 0 0 25 0 1 0 59543204 243302400 53680 996147200 134512640 135095119 4294956304 18446744073709551615 134842951 0 0 4096 0 0 0 0 17 0 0 0
/proc/14749/statm: 59400 53680 385 142 0 58354 0
Current children cumulated CPU time (s) 41.31
Current children cumulated vsize (KiB) 237600

[startup+43.1016 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 14755
/proc/meminfo: memFree=1043056/2055920 swapFree=4192812/4192956
[pid=14749] ppid=14747 vsize=241908 CPUtime=42.9
/proc/14749/stat : 14749 (pcs.small) R 14747 14749 12947 0 -1 4194304 80294 819 0 0 4257 33 0 0 25 0 1 0 59543204 247713792 55374 996147200 134512640 135095119 4294956304 18446744073709551615 134617043 0 0 4096 0 0 0 0 17 0 0 0
/proc/14749/statm: 60477 55374 385 142 0 59431 0
Current children cumulated CPU time (s) 42.9
Current children cumulated vsize (KiB) 241908

[startup+44.7018 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 14755
/proc/meminfo: memFree=1038512/2055920 swapFree=4192812/4192956
[pid=14749] ppid=14747 vsize=212776 CPUtime=44.5
/proc/14749/stat : 14749 (pcs.small) R 14747 14749 12947 0 -1 4194304 81773 819 0 0 4415 35 0 0 25 0 1 0 59543204 217882624 49038 996147200 134512640 135095119 4294956304 18446744073709551615 3032926 0 0 4096 0 0 0 0 17 0 0 0
/proc/14749/statm: 53194 49038 385 142 0 52148 0
Current children cumulated CPU time (s) 44.5
Current children cumulated vsize (KiB) 212776

[startup+45.1059 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 14755
/proc/meminfo: memFree=1118576/2055920 swapFree=4192812/4192956
[pid=14749] ppid=14747 vsize=147236 CPUtime=44.9
/proc/14749/stat : 14749 (pcs.small) R 14747 14749 12947 0 -1 4194304 81773 819 0 0 4455 35 0 0 25 0 1 0 59543204 150769664 36156 996147200 134512640 135095119 4294956304 18446744073709551615 3031164 0 0 4096 0 0 0 0 17 0 0 0
/proc/14749/statm: 36809 36156 385 142 0 35763 0
Current children cumulated CPU time (s) 44.9
Current children cumulated vsize (KiB) 147236

[startup+45.3019 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 14755
/proc/meminfo: memFree=1118576/2055920 swapFree=4192812/4192956
[pid=14749] ppid=14747 vsize=147236 CPUtime=45.09
/proc/14749/stat : 14749 (pcs.small) R 14747 14749 12947 0 -1 4194304 81773 819 0 0 4474 35 0 0 25 0 1 0 59543204 150769664 36156 996147200 134512640 135095119 4294956304 18446744073709551615 3031155 0 0 4096 0 0 0 0 17 0 0 0
/proc/14749/statm: 36809 36156 385 142 0 35763 0
Current children cumulated CPU time (s) 45.09
Current children cumulated vsize (KiB) 147236

[startup+45.4019 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 14755
/proc/meminfo: memFree=1118576/2055920 swapFree=4192812/4192956
[pid=14749] ppid=14747 vsize=147236 CPUtime=45.19
/proc/14749/stat : 14749 (pcs.small) R 14747 14749 12947 0 -1 4194304 81773 819 0 0 4483 36 0 0 25 0 1 0 59543204 150769664 36156 996147200 134512640 135095119 4294956304 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/14749/statm: 36809 36156 12529 142 0 35763 0
Current children cumulated CPU time (s) 45.19
Current children cumulated vsize (KiB) 147236

Child status: 0
Real time (s): 45.4183
CPU time (s): 45.2281
CPU user time (s): 44.8392
CPU system time (s): 0.38894
CPU usage (%): 99.5813
Max. virtual memory (cumulated for all children) (KiB): 245548

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 44.8392
system time used= 0.38894
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 82594
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= 23
involuntary context switches= 648

runsolver used 0.031995 second user time and 0.142978 second system time

The end

Launcher Data 

Begin job on node85 at 2009-07-16 08:12:59
IDJOB=2084497
IDBENCH=58085
IDSOLVER=734
FILE ID=node85/2084497-1247724779
PBS_JOBID= 9521464
Free space on /tmp= 126540 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/graphColoring/myciel/normalized-myciel5-5.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2084497-1247724779/watcher-2084497-1247724779 -o /tmp/evaluation-result-2084497-1247724779/solver-2084497-1247724779 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1089488733 HOME/instance-2084497-1247724779.xml

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

MD5SUM BENCH= 4e9947661c937a66df0f73a5c98437a3
RANDOM SEED=1089488733

node85.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		: 3000.220
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		: 3000.220
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:       1265744 kB
Buffers:         90284 kB
Cached:         455552 kB
SwapCached:          0 kB
Active:         371280 kB
Inactive:       345420 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1265744 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1740 kB
Writeback:           0 kB
Mapped:         182168 kB
Slab:            58576 kB
Committed_AS:   603284 kB
PageTables:       2016 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= 126540 MiB
End job on node85 at 2009-07-16 08:13:44