Trace number 2074355

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 23.1095 23.2283

DiagnosticValue
ASSIGNMENTS42503

General information on the benchmark

Namecsp/chessboardColoration/
normalized-cc-12-12-2.xml
MD5SUM3522093697b9ca731333dcd1630624f7
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 benchmark2.50262
Satisfiable
(Un)Satisfiability was proved
Number of variables144
Number of constraints4356
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension4356
Global constraints used (with number of constraints)

Solver Data 

0.00/0.02	c small-domain mode
0.18/0.20	c Seed is 1547252132
0.18/0.20	c Constructing HOME/instance-2074355-1247712369.xml  with 77220 constraints
0.48/0.53	c Solving 42503 backtracks 17 restarts
23.06/23.22	s UNSATISFIABLE
23.06/23.22	d ASSIGNMENTS 42503

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-2074355-1247712369/watcher-2074355-1247712369 -o /tmp/evaluation-result-2074355-1247712369/solver-2074355-1247712369 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1547252132 HOME/instance-2074355-1247712369.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: 2.02 2.04 2.01 4/82 14848
/proc/meminfo: memFree=1122344/2055920 swapFree=4192812/4192956
[pid=14848] ppid=14846 vsize=5212 CPUtime=0
/proc/14848/stat : 14848 (pcssolve) R 14846 14848 14567 0 -1 4194304 76 0 0 0 0 0 0 0 20 0 1 0 58300026 5337088 50 996147200 4194304 4889804 548682068800 18446744073709551615 226261733536 0 0 4096 0 0 0 0 17 1 0 0
/proc/14848/statm: 1303 50 34 169 0 14 0

[startup+0.021155 s]
/proc/loadavg: 2.02 2.04 2.01 4/82 14848
/proc/meminfo: memFree=1122344/2055920 swapFree=4192812/4192956
[pid=14848] ppid=14846 vsize=5356 CPUtime=0
/proc/14848/stat : 14848 (pcssolve) S 14846 14848 14567 0 -1 4194304 367 649 0 0 0 0 0 0 23 0 1 0 58300026 5484544 243 996147200 4194304 4889804 548682068800 18446744073709551615 226238194500 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/14848/statm: 1339 243 202 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.101167 s]
/proc/loadavg: 2.02 2.04 2.01 4/82 14848
/proc/meminfo: memFree=1122344/2055920 swapFree=4192812/4192956
[pid=14848] ppid=14846 vsize=6504 CPUtime=0.07
/proc/14848/stat : 14848 (pcs.small) R 14846 14848 14567 0 -1 4194304 1409 822 0 0 7 0 0 0 18 0 1 0 58300026 6660096 920 996147200 134512640 135095119 4294956304 18446744073709551615 4159051932 0 0 4096 0 0 0 0 17 1 0 0
/proc/14848/statm: 1626 920 374 142 0 580 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 6504

[startup+0.301184 s]
/proc/loadavg: 2.02 2.04 2.01 4/82 14848
/proc/meminfo: memFree=1122344/2055920 swapFree=4192812/4192956
[pid=14848] ppid=14846 vsize=12172 CPUtime=0.27
/proc/14848/stat : 14848 (pcs.small) R 14846 14848 14567 0 -1 4194304 3057 822 0 0 26 1 0 0 19 0 1 0 58300026 12464128 2112 996147200 134512640 135095119 4294956304 18446744073709551615 134706686 0 0 4096 0 0 0 0 17 1 0 0
/proc/14848/statm: 3043 2112 374 142 0 1997 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 12172

[startup+0.701219 s]
/proc/loadavg: 2.02 2.04 2.01 4/82 14848
/proc/meminfo: memFree=1122344/2055920 swapFree=4192812/4192956
[pid=14848] ppid=14846 vsize=21756 CPUtime=0.67
/proc/14848/stat : 14848 (pcs.small) R 14846 14848 14567 0 -1 4194304 6570 822 0 0 65 2 0 0 23 0 1 0 58300026 22278144 4167 996147200 134512640 135095119 4294956304 18446744073709551615 134615460 0 0 4096 0 0 0 0 17 1 0 0
/proc/14848/statm: 5439 4167 387 142 0 4393 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 21756

[startup+1.50129 s]
/proc/loadavg: 2.02 2.04 2.01 3/83 14854
/proc/meminfo: memFree=1106720/2055920 swapFree=4192812/4192956
[pid=14848] ppid=14846 vsize=21920 CPUtime=1.46
/proc/14848/stat : 14848 (pcs.small) R 14846 14848 14567 0 -1 4194304 29119 822 0 0 136 10 0 0 25 0 1 0 58300026 22446080 4220 996147200 134512640 135095119 4294956304 18446744073709551615 134589562 0 0 4096 0 0 0 0 17 1 0 0
/proc/14848/statm: 5480 4220 387 142 0 4434 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 21920

[startup+3.10143 s]
/proc/loadavg: 2.02 2.04 2.01 3/83 14854
/proc/meminfo: memFree=1106464/2055920 swapFree=4192812/4192956
[pid=14848] ppid=14846 vsize=22304 CPUtime=3.06
/proc/14848/stat : 14848 (pcs.small) R 14846 14848 14567 0 -1 4194304 134716 822 0 0 264 42 0 0 25 0 1 0 58300026 22839296 4329 996147200 134512640 135095119 4294956304 18446744073709551615 134589562 0 0 4096 0 0 0 0 17 1 0 0
/proc/14848/statm: 5576 4329 387 142 0 4530 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 22304

[startup+6.30171 s]
/proc/loadavg: 2.02 2.04 2.01 3/83 14854
/proc/meminfo: memFree=1105248/2055920 swapFree=4192812/4192956
[pid=14848] ppid=14846 vsize=23084 CPUtime=6.25
/proc/14848/stat : 14848 (pcs.small) R 14846 14848 14567 0 -1 4194304 381333 822 0 0 511 114 0 0 25 0 1 0 58300026 23638016 4592 996147200 134512640 135095119 4294956304 18446744073709551615 134839508 0 0 4096 0 0 0 0 17 1 0 0
/proc/14848/statm: 5771 4592 387 142 0 4725 0
Current children cumulated CPU time (s) 6.25
Current children cumulated vsize (KiB) 23084

[startup+12.7013 s]
/proc/loadavg: 2.02 2.04 2.01 3/83 14854
/proc/meminfo: memFree=1103144/2055920 swapFree=4192812/4192956
[pid=14848] ppid=14846 vsize=24632 CPUtime=12.61
/proc/14848/stat : 14848 (pcs.small) R 14846 14848 14567 0 -1 4194304 810181 822 0 0 1020 241 0 0 25 0 1 0 58300026 25223168 5066 996147200 134512640 135095119 4294956304 18446744073709551615 134589560 0 0 4096 0 0 0 0 17 1 0 0
/proc/14848/statm: 6158 5066 387 142 0 5112 0
Current children cumulated CPU time (s) 12.61
Current children cumulated vsize (KiB) 24632

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

[startup+19.1018 s]
/proc/loadavg: 2.02 2.04 2.01 3/83 14854
/proc/meminfo: memFree=1101160/2055920 swapFree=4192812/4192956
[pid=14848] ppid=14846 vsize=26436 CPUtime=18.98
/proc/14848/stat : 14848 (pcs.small) R 14846 14848 14567 0 -1 4194304 1311583 822 0 0 1510 388 0 0 25 0 1 0 58300026 27070464 5595 996147200 134512640 135095119 4294956304 18446744073709551615 134577254 0 0 4096 0 0 0 0 17 1 0 0
/proc/14848/statm: 6609 5595 387 142 0 5563 0
Current children cumulated CPU time (s) 18.98
Current children cumulated vsize (KiB) 26436

[startup+20.702 s]
/proc/loadavg: 2.02 2.04 2.01 3/83 14854
/proc/meminfo: memFree=1100776/2055920 swapFree=4192812/4192956
[pid=14848] ppid=14846 vsize=26820 CPUtime=20.58
/proc/14848/stat : 14848 (pcs.small) R 14846 14848 14567 0 -1 4194304 1438299 822 0 0 1635 423 0 0 25 0 1 0 58300026 27463680 5733 996147200 134512640 135095119 4294956304 18446744073709551615 134840346 0 0 4096 0 0 0 0 17 1 0 0
/proc/14848/statm: 6705 5733 387 142 0 5659 0
Current children cumulated CPU time (s) 20.58
Current children cumulated vsize (KiB) 26820

[startup+22.3011 s]
/proc/loadavg: 2.02 2.04 2.01 3/83 14854
/proc/meminfo: memFree=1100072/2055920 swapFree=4192812/4192956
[pid=14848] ppid=14846 vsize=27208 CPUtime=22.17
/proc/14848/stat : 14848 (pcs.small) R 14846 14848 14567 0 -1 4194304 1559688 822 0 0 1757 460 0 0 25 0 1 0 58300026 27860992 5864 996147200 134512640 135095119 4294956304 18446744073709551615 134589560 0 0 4096 0 0 0 0 17 1 0 0
/proc/14848/statm: 6802 5864 387 142 0 5756 0
Current children cumulated CPU time (s) 22.17
Current children cumulated vsize (KiB) 27208

[startup+22.7012 s]
/proc/loadavg: 2.02 2.04 2.01 3/83 14854
/proc/meminfo: memFree=1100072/2055920 swapFree=4192812/4192956
[pid=14848] ppid=14846 vsize=27336 CPUtime=22.56
/proc/14848/stat : 14848 (pcs.small) R 14846 14848 14567 0 -1 4194304 1590196 822 0 0 1789 467 0 0 25 0 1 0 58300026 27992064 5896 996147200 134512640 135095119 4294956304 18446744073709551615 134840303 0 0 4096 0 0 0 0 17 1 0 0
/proc/14848/statm: 6834 5896 387 142 0 5788 0
Current children cumulated CPU time (s) 22.56
Current children cumulated vsize (KiB) 27336

[startup+23.1062 s]
/proc/loadavg: 2.02 2.04 2.01 3/83 14854
/proc/meminfo: memFree=1099688/2055920 swapFree=4192812/4192956
[pid=14848] ppid=14846 vsize=27464 CPUtime=22.96
/proc/14848/stat : 14848 (pcs.small) R 14846 14848 14567 0 -1 4194304 1621884 822 0 0 1820 476 0 0 25 0 1 0 58300026 28123136 5930 996147200 134512640 135095119 4294956304 18446744073709551615 134617038 0 0 4096 0 0 0 0 17 1 0 0
/proc/14848/statm: 6866 5930 387 142 0 5820 0
Current children cumulated CPU time (s) 22.96
Current children cumulated vsize (KiB) 27464

[startup+23.2012 s]
/proc/loadavg: 2.02 2.04 2.01 3/83 14854
/proc/meminfo: memFree=1099688/2055920 swapFree=4192812/4192956
[pid=14848] ppid=14846 vsize=21124 CPUtime=23.06
/proc/14848/stat : 14848 (pcs.small) R 14846 14848 14567 0 -1 4194304 1622987 822 0 0 1829 477 0 0 25 0 1 0 58300026 21630976 4435 996147200 134512640 135095119 4294956304 18446744073709551615 5300313 0 0 4096 0 0 0 0 17 1 0 0
/proc/14848/statm: 5281 4435 387 142 0 4235 0
Current children cumulated CPU time (s) 23.06
Current children cumulated vsize (KiB) 21124

Child status: 0
Real time (s): 23.2283
CPU time (s): 23.1095
CPU user time (s): 18.3272
CPU system time (s): 4.78227
CPU usage (%): 99.4887
Max. virtual memory (cumulated for all children) (KiB): 27616

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 18.3272
system time used= 4.78227
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1623811
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= 296

runsolver used 0.026995 second user time and 0.087986 second system time

The end

Launcher Data 

Begin job on node58 at 2009-07-16 04:46:09
IDJOB=2074355
IDBENCH=56091
IDSOLVER=734
FILE ID=node58/2074355-1247712369
PBS_JOBID= 9521461
Free space on /tmp= 66244 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/chessboardColoration/normalized-cc-12-12-2.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2074355-1247712369/watcher-2074355-1247712369 -o /tmp/evaluation-result-2074355-1247712369/solver-2074355-1247712369 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1547252132 HOME/instance-2074355-1247712369.xml

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

MD5SUM BENCH= 3522093697b9ca731333dcd1630624f7
RANDOM SEED=1547252132

node58.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		: 3000.234
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		: 3000.234
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:       1122824 kB
Buffers:         80660 kB
Cached:         612804 kB
SwapCached:          0 kB
Active:         354580 kB
Inactive:       505724 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1122824 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2436 kB
Writeback:           0 kB
Mapped:         187208 kB
Slab:            57900 kB
Committed_AS:   688368 kB
PageTables:       2068 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= 66244 MiB
End job on node58 at 2009-07-16 04:46:32