Trace number 2074354

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 33.7019 34.0278

DiagnosticValue
ASSIGNMENTS52048

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
0.17/0.22	c Seed is 1461898925
0.17/0.22	c Constructing HOME/instance-2074354-1247712367.xml  with 77220 constraints
0.47/0.53	c Solving 52048 backtracks 18 restarts
33.66/34.02	s UNSATISFIABLE
33.66/34.02	d ASSIGNMENTS 52048

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-2074354-1247712367/watcher-2074354-1247712367 -o /tmp/evaluation-result-2074354-1247712367/solver-2074354-1247712367 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1461898925 HOME/instance-2074354-1247712367.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 2.01 2.03 4/81 7112
/proc/meminfo: memFree=1221184/2055920 swapFree=4192812/4192956
[pid=7112] ppid=7110 vsize=18576 CPUtime=0
/proc/7112/stat : 7112 (runsolver) R 7110 7112 6894 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 58303320 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 273952599335 0 0 4096 24578 0 0 0 17 1 0 0
/proc/7112/statm: 4644 284 249 26 0 2626 0

[startup+0.0975831 s]
/proc/loadavg: 2.00 2.01 2.03 4/81 7112
/proc/meminfo: memFree=1221184/2055920 swapFree=4192812/4192956
[pid=7112] ppid=7110 vsize=6376 CPUtime=0.07
/proc/7112/stat : 7112 (pcs.small) R 7110 7112 6894 0 -1 4194304 1385 822 0 0 7 0 0 0 18 0 1 0 58303320 6529024 896 996147200 134512640 135095119 4294956304 18446744073709551615 4159151583 0 0 4096 0 0 0 0 17 1 0 0
/proc/7112/statm: 1594 896 374 142 0 548 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 6376

[startup+0.102576 s]
/proc/loadavg: 2.00 2.01 2.03 4/81 7112
/proc/meminfo: memFree=1221184/2055920 swapFree=4192812/4192956
[pid=7112] ppid=7110 vsize=6504 CPUtime=0.07
/proc/7112/stat : 7112 (pcs.small) R 7110 7112 6894 0 -1 4194304 1416 822 0 0 7 0 0 0 18 0 1 0 58303320 6660096 927 996147200 134512640 135095119 4294956304 18446744073709551615 8052224 0 0 4096 0 0 0 0 17 1 0 0
/proc/7112/statm: 1626 927 374 142 0 580 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 6504

[startup+0.302608 s]
/proc/loadavg: 2.00 2.01 2.03 4/81 7112
/proc/meminfo: memFree=1221184/2055920 swapFree=4192812/4192956
[pid=7112] ppid=7110 vsize=12172 CPUtime=0.27
/proc/7112/stat : 7112 (pcs.small) R 7110 7112 6894 0 -1 4194304 3055 822 0 0 27 0 0 0 19 0 1 0 58303320 12464128 2110 996147200 134512640 135095119 4294956304 18446744073709551615 134706655 0 0 4096 0 0 0 0 17 1 0 0
/proc/7112/statm: 3043 2110 374 142 0 1997 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 12172

[startup+0.701656 s]
/proc/loadavg: 2.00 2.01 2.03 4/81 7112
/proc/meminfo: memFree=1221184/2055920 swapFree=4192812/4192956
[pid=7112] ppid=7110 vsize=21760 CPUtime=0.67
/proc/7112/stat : 7112 (pcs.small) R 7110 7112 6894 0 -1 4194304 6431 822 0 0 65 2 0 0 23 0 1 0 58303320 22282240 4180 996147200 134512640 135095119 4294956304 18446744073709551615 134555279 0 0 4096 0 0 0 0 17 1 0 0
/proc/7112/statm: 5440 4180 387 142 0 4394 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 21760

[startup+1.50175 s]
/proc/loadavg: 2.00 2.01 2.03 3/82 7118
/proc/meminfo: memFree=1205624/2055920 swapFree=4192812/4192956
[pid=7112] ppid=7110 vsize=21924 CPUtime=1.46
/proc/7112/stat : 7112 (pcs.small) R 7110 7112 6894 0 -1 4194304 32308 822 0 0 137 9 0 0 25 0 1 0 58303320 22450176 4217 996147200 134512640 135095119 4294956304 18446744073709551615 134842108 0 0 4096 0 0 0 0 17 1 0 0
/proc/7112/statm: 5481 4217 387 142 0 4435 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 21924

[startup+3.10193 s]
/proc/loadavg: 2.00 2.01 2.03 3/82 7118
/proc/meminfo: memFree=1205432/2055920 swapFree=4192812/4192956
[pid=7112] ppid=7110 vsize=22180 CPUtime=3.05
/proc/7112/stat : 7112 (pcs.small) R 7110 7112 6894 0 -1 4194304 115678 822 0 0 269 36 0 0 25 0 1 0 58303320 22712320 4291 996147200 134512640 135095119 4294956304 18446744073709551615 8060550 0 0 4096 0 0 0 0 17 1 0 0
/proc/7112/statm: 5545 4291 387 142 0 4499 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 22180

[startup+6.30131 s]
/proc/loadavg: 2.00 2.01 2.03 3/82 7118
/proc/meminfo: memFree=1204472/2055920 swapFree=4192812/4192956
[pid=7112] ppid=7110 vsize=22820 CPUtime=6.21
/proc/7112/stat : 7112 (pcs.small) R 7110 7112 6894 0 -1 4194304 322956 822 0 0 520 101 0 0 25 0 1 0 58303320 23367680 4507 996147200 134512640 135095119 4294956304 18446744073709551615 134616798 0 0 4096 0 0 0 0 17 1 0 0
/proc/7112/statm: 5705 4507 387 142 0 4659 0
Current children cumulated CPU time (s) 6.21
Current children cumulated vsize (KiB) 22820

[startup+12.7011 s]
/proc/loadavg: 2.00 2.01 2.03 3/82 7118
/proc/meminfo: memFree=1202680/2055920 swapFree=4192812/4192956
[pid=7112] ppid=7110 vsize=24112 CPUtime=12.56
/proc/7112/stat : 7112 (pcs.small) R 7110 7112 6894 0 -1 4194304 685331 822 0 0 1043 213 0 0 25 0 1 0 58303320 24690688 4894 996147200 134512640 135095119 4294956304 18446744073709551615 134590379 0 0 4096 0 0 0 0 17 1 0 0
/proc/7112/statm: 6028 4894 387 142 0 4982 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 24112

[startup+25.5025 s]
/proc/loadavg: 2.00 2.01 2.03 3/82 7118
/proc/meminfo: memFree=1199160/2055920 swapFree=4192812/4192956
[pid=7112] ppid=7110 vsize=27096 CPUtime=25.24
/proc/7112/stat : 7112 (pcs.small) R 7110 7112 6894 0 -1 4194304 1486998 822 0 0 2069 455 0 0 25 0 1 0 58303320 27746304 5792 996147200 134512640 135095119 4294956304 18446744073709551615 134619674 0 0 4096 0 0 0 0 17 1 0 0
/proc/7112/statm: 6774 5792 387 142 0 5728 0
Current children cumulated CPU time (s) 25.24
Current children cumulated vsize (KiB) 27096

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

[startup+28.7019 s]
/proc/loadavg: 2.00 2.01 2.03 3/82 7118
/proc/meminfo: memFree=1198328/2055920 swapFree=4192812/4192956
[pid=7112] ppid=7110 vsize=27584 CPUtime=28.41
/proc/7112/stat : 7112 (pcs.small) R 7110 7112 6894 0 -1 4194304 1685911 822 0 0 2329 512 0 0 25 0 1 0 58303320 28246016 5965 996147200 134512640 135095119 4294956304 18446744073709551615 134591779 0 0 4096 0 0 0 0 17 1 0 0
/proc/7112/statm: 6896 5965 387 142 0 5850 0
Current children cumulated CPU time (s) 28.41
Current children cumulated vsize (KiB) 27584

[startup+31.9063 s]
/proc/loadavg: 2.00 2.00 2.03 3/82 7118
/proc/meminfo: memFree=1197432/2055920 swapFree=4192812/4192956
[pid=7112] ppid=7110 vsize=28380 CPUtime=31.58
/proc/7112/stat : 7112 (pcs.small) R 7110 7112 6894 0 -1 4194304 1877528 822 0 0 2589 569 0 0 25 0 1 0 58303320 29061120 6176 996147200 134512640 135095119 4294956304 18446744073709551615 134599362 0 0 4096 0 0 0 0 17 1 0 0
/proc/7112/statm: 7095 6176 387 142 0 6049 0
Current children cumulated CPU time (s) 31.58
Current children cumulated vsize (KiB) 28380

[startup+32.7014 s]
/proc/loadavg: 2.00 2.00 2.03 3/82 7118
/proc/meminfo: memFree=1197432/2055920 swapFree=4192812/4192956
[pid=7112] ppid=7110 vsize=28356 CPUtime=32.37
/proc/7112/stat : 7112 (pcs.small) R 7110 7112 6894 0 -1 4194304 1920664 822 0 0 2654 583 0 0 25 0 1 0 58303320 29036544 6220 996147200 134512640 135095119 4294956304 18446744073709551615 134590360 0 0 4096 0 0 0 0 17 1 0 0
/proc/7112/statm: 7089 6220 387 142 0 6043 0
Current children cumulated CPU time (s) 32.37
Current children cumulated vsize (KiB) 28356

[startup+33.5025 s]
/proc/loadavg: 2.00 2.00 2.03 3/82 7118
/proc/meminfo: memFree=1197176/2055920 swapFree=4192812/4192956
[pid=7112] ppid=7110 vsize=28488 CPUtime=33.16
/proc/7112/stat : 7112 (pcs.small) R 7110 7112 6894 0 -1 4194304 1965134 822 0 0 2720 596 0 0 25 0 1 0 58303320 29171712 6268 996147200 134512640 135095119 4294956304 18446744073709551615 134589562 0 0 4096 0 0 0 0 17 1 0 0
/proc/7112/statm: 7122 6268 387 142 0 6076 0
Current children cumulated CPU time (s) 33.16
Current children cumulated vsize (KiB) 28488

[startup+33.9025 s]
/proc/loadavg: 2.00 2.00 2.03 3/82 7118
/proc/meminfo: memFree=1197176/2055920 swapFree=4192812/4192956
[pid=7112] ppid=7110 vsize=28488 CPUtime=33.56
/proc/7112/stat : 7112 (pcs.small) R 7110 7112 6894 0 -1 4194304 1985982 822 0 0 2753 603 0 0 25 0 1 0 58303320 29171712 6292 996147200 134512640 135095119 4294956304 18446744073709551615 134883024 0 0 4096 0 0 0 0 17 1 0 0
/proc/7112/statm: 7122 6292 387 142 0 6076 0
Current children cumulated CPU time (s) 33.56
Current children cumulated vsize (KiB) 28488

[startup+34.0025 s]
/proc/loadavg: 2.00 2.00 2.03 3/82 7118
/proc/meminfo: memFree=1203192/2055920 swapFree=4192812/4192956
[pid=7112] ppid=7110 vsize=22148 CPUtime=33.66
/proc/7112/stat : 7112 (pcs.small) R 7110 7112 6894 0 -1 4194304 1986058 822 0 0 2763 603 0 0 25 0 1 0 58303320 22679552 4722 996147200 134512640 135095119 4294956304 18446744073709551615 8048737 0 0 4096 0 0 0 0 17 1 0 0
/proc/7112/statm: 5537 4722 387 142 0 4491 0
Current children cumulated CPU time (s) 33.66
Current children cumulated vsize (KiB) 22148

Child status: 0
Real time (s): 34.0278
CPU time (s): 33.7019
CPU user time (s): 27.6528
CPU system time (s): 6.04908
CPU usage (%): 99.0422
Max. virtual memory (cumulated for all children) (KiB): 28640

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 27.6528
system time used= 6.04908
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1986882
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= 21
involuntary context switches= 1398

runsolver used 0.045993 second user time and 0.117982 second system time

The end

Launcher Data 

Begin job on node20 at 2009-07-16 04:46:07
IDJOB=2074354
IDBENCH=56091
IDSOLVER=733
FILE ID=node20/2074354-1247712367
PBS_JOBID= 9521396
Free space on /tmp= 66296 MiB

SOLVER NAME= pcs 0.2
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-2074354-1247712367/watcher-2074354-1247712367 -o /tmp/evaluation-result-2074354-1247712367/solver-2074354-1247712367 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1461898925 HOME/instance-2074354-1247712367.xml

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

MD5SUM BENCH= 3522093697b9ca731333dcd1630624f7
RANDOM SEED=1461898925

node20.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		: 3000.236
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		: 3000.236
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:       1221664 kB
Buffers:         84276 kB
Cached:         549348 kB
SwapCached:          0 kB
Active:         259576 kB
Inactive:       484876 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1221664 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2516 kB
Writeback:           0 kB
Mapped:         131224 kB
Slab:            74892 kB
Committed_AS:   616840 kB
PageTables:       2040 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= 66292 MiB
End job on node20 at 2009-07-16 04:46:41