Trace number 2074410

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 14.4928 14.6339

DiagnosticValue
ASSIGNMENTS69520

General information on the benchmark

Namecsp/
chessboardColoration/normalized-cc-7-7-2.xml
MD5SUM1f8c8222dee021c25c644cdfea44a70e
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 benchmark0.294954
Satisfiable
(Un)Satisfiability was proved
Number of variables49
Number of constraints441
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension441
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.00/0.21	c Seed is 1672830471
0.00/0.21	c Constructing HOME/instance-2074410-1247712391.xml  with 8085 constraints
0.00/0.21	c Solving 69520 backtracks 18 restarts
14.44/14.63	s UNSATISFIABLE
14.44/14.63	d ASSIGNMENTS 69520

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-2074410-1247712391/watcher-2074410-1247712391 -o /tmp/evaluation-result-2074410-1247712391/solver-2074410-1247712391 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1672830471 HOME/instance-2074410-1247712391.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: 2.04 2.07 2.02 4/81 14522
/proc/meminfo: memFree=1484880/2055920 swapFree=4192812/4192956
[pid=14522] ppid=14520 vsize=5356 CPUtime=0
/proc/14522/stat : 14522 (pcssolve) R 14520 14522 13922 0 -1 4194304 273 0 0 0 0 0 0 0 20 0 1 0 58305715 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 255236565663 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/14522/statm: 1339 241 200 169 0 50 0
[pid=14523] ppid=14522 vsize=5356 CPUtime=0
/proc/14523/stat : 14523 (pcssolve) R 14522 14522 13922 0 -1 4194368 0 0 0 0 0 0 0 0 20 0 1 0 58305715 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 255236565663 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/14523/statm: 1339 241 200 169 0 50 0

[startup+0.210125 s]
/proc/loadavg: 2.04 2.07 2.02 4/81 14522
/proc/meminfo: memFree=1484880/2055920 swapFree=4192812/4192956
[pid=14522] ppid=14520 vsize=6472 CPUtime=0.18
/proc/14522/stat : 14522 (pcs.small) R 14520 14522 13922 0 -1 4194304 1372 822 0 0 18 0 0 0 19 0 1 0 58305715 6627328 883 996147200 134512640 135095119 4294956304 18446744073709551615 134642985 0 0 4096 0 0 0 0 17 1 0 0
/proc/14522/statm: 1618 883 387 142 0 572 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 6472

[startup+0.301037 s]
/proc/loadavg: 2.04 2.07 2.02 4/81 14522
/proc/meminfo: memFree=1484880/2055920 swapFree=4192812/4192956
[pid=14522] ppid=14520 vsize=6596 CPUtime=0.27
/proc/14522/stat : 14522 (pcs.small) R 14520 14522 13922 0 -1 4194304 1380 822 0 0 27 0 0 0 19 0 1 0 58305715 6754304 891 996147200 134512640 135095119 4294956304 18446744073709551615 134642583 0 0 4096 0 0 0 0 17 1 0 0
/proc/14522/statm: 1649 891 387 142 0 603 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 6596

[startup+0.401049 s]
/proc/loadavg: 2.04 2.07 2.02 4/81 14522
/proc/meminfo: memFree=1484880/2055920 swapFree=4192812/4192956
[pid=14522] ppid=14520 vsize=6596 CPUtime=0.37
/proc/14522/stat : 14522 (pcs.small) R 14520 14522 13922 0 -1 4194304 1400 822 0 0 37 0 0 0 20 0 1 0 58305715 6754304 911 996147200 134512640 135095119 4294956304 18446744073709551615 134617205 0 0 4096 0 0 0 0 17 1 0 0
/proc/14522/statm: 1649 911 387 142 0 603 0
Current children cumulated CPU time (s) 0.37
Current children cumulated vsize (KiB) 6596

[startup+0.701082 s]
/proc/loadavg: 2.04 2.07 2.02 4/81 14522
/proc/meminfo: memFree=1484880/2055920 swapFree=4192812/4192956
[pid=14522] ppid=14520 vsize=6708 CPUtime=0.67
/proc/14522/stat : 14522 (pcs.small) R 14520 14522 13922 0 -1 4194304 1452 822 0 0 67 0 0 0 23 0 1 0 58305715 6868992 963 996147200 134512640 135095119 4294956304 18446744073709551615 134838152 0 0 4096 0 0 0 0 17 1 0 0
/proc/14522/statm: 1677 963 387 142 0 631 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6708

[startup+1.50117 s]
/proc/loadavg: 2.04 2.07 2.02 3/82 14528
/proc/meminfo: memFree=1482184/2055920 swapFree=4192812/4192956
[pid=14522] ppid=14520 vsize=7268 CPUtime=1.46
/proc/14522/stat : 14522 (pcs.small) R 14520 14522 13922 0 -1 4194304 1598 822 0 0 146 0 0 0 25 0 1 0 58305715 7442432 1109 996147200 134512640 135095119 4294956304 18446744073709551615 134877413 0 0 4096 0 0 0 0 17 1 0 0
/proc/14522/statm: 1817 1109 387 142 0 771 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 7268

[startup+3.10134 s]
/proc/loadavg: 2.03 2.07 2.02 3/82 14528
/proc/meminfo: memFree=1480904/2055920 swapFree=4192812/4192956
[pid=14522] ppid=14520 vsize=8756 CPUtime=3.05
/proc/14522/stat : 14522 (pcs.small) R 14520 14522 13922 0 -1 4194304 2036 822 0 0 305 0 0 0 25 0 1 0 58305715 8966144 1418 996147200 134512640 135095119 4294956304 18446744073709551615 134589545 0 0 4096 0 0 0 0 17 1 0 0
/proc/14522/statm: 2189 1418 387 142 0 1143 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 8756

[startup+6.30268 s]
/proc/loadavg: 2.03 2.07 2.02 3/82 14528
/proc/meminfo: memFree=1477576/2055920 swapFree=4192812/4192956
[pid=14522] ppid=14520 vsize=12052 CPUtime=6.22
/proc/14522/stat : 14522 (pcs.small) R 14520 14522 13922 0 -1 4194304 3033 822 0 0 621 1 0 0 25 0 1 0 58305715 12341248 2125 996147200 134512640 135095119 4294956304 18446744073709551615 134617244 0 0 4096 0 0 0 0 17 1 0 0
/proc/14522/statm: 3013 2125 387 142 0 1967 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 12052

[startup+12.7014 s]
/proc/loadavg: 2.03 2.07 2.02 3/82 14528
/proc/meminfo: memFree=1470920/2055920 swapFree=4192812/4192956
[pid=14522] ppid=14520 vsize=19736 CPUtime=12.57
/proc/14522/stat : 14522 (pcs.small) R 14520 14522 13922 0 -1 4194304 5190 822 0 0 1255 2 0 0 25 0 1 0 58305715 20209664 3769 996147200 134512640 135095119 4294956304 18446744073709551615 134599792 0 0 4096 0 0 0 0 17 1 0 0
/proc/14522/statm: 4934 3769 387 142 0 3888 0
Current children cumulated CPU time (s) 12.57
Current children cumulated vsize (KiB) 19736

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

[startup+12.9014 s]
/proc/loadavg: 2.03 2.07 2.02 3/82 14528
/proc/meminfo: memFree=1470920/2055920 swapFree=4192812/4192956
[pid=14522] ppid=14520 vsize=19736 CPUtime=12.76
/proc/14522/stat : 14522 (pcs.small) R 14520 14522 13922 0 -1 4194304 5197 822 0 0 1274 2 0 0 25 0 1 0 58305715 20209664 3776 996147200 134512640 135095119 4294956304 18446744073709551615 134839487 0 0 4096 0 0 0 0 17 1 0 0
/proc/14522/statm: 4934 3776 387 142 0 3888 0
Current children cumulated CPU time (s) 12.76
Current children cumulated vsize (KiB) 19736

[startup+13.7015 s]
/proc/loadavg: 2.03 2.07 2.02 3/82 14528
/proc/meminfo: memFree=1470920/2055920 swapFree=4192812/4192956
[pid=14522] ppid=14520 vsize=19604 CPUtime=13.55
/proc/14522/stat : 14522 (pcs.small) R 14520 14522 13922 0 -1 4194304 5228 822 0 0 1353 2 0 0 25 0 1 0 58305715 20074496 3774 996147200 134512640 135095119 4294956304 18446744073709551615 134615551 0 0 4096 0 0 0 0 17 1 0 0
/proc/14522/statm: 4901 3774 387 142 0 3855 0
Current children cumulated CPU time (s) 13.55
Current children cumulated vsize (KiB) 19604

[startup+14.1025 s]
/proc/loadavg: 2.03 2.07 2.02 3/82 14528
/proc/meminfo: memFree=1470920/2055920 swapFree=4192812/4192956
[pid=14522] ppid=14520 vsize=19604 CPUtime=13.95
/proc/14522/stat : 14522 (pcs.small) R 14520 14522 13922 0 -1 4194304 5240 822 0 0 1393 2 0 0 25 0 1 0 58305715 20074496 3786 996147200 134512640 135095119 4294956304 18446744073709551615 134883095 0 0 4096 0 0 0 0 17 1 0 0
/proc/14522/statm: 4901 3786 387 142 0 3855 0
Current children cumulated CPU time (s) 13.95
Current children cumulated vsize (KiB) 19604

[startup+14.5066 s]
/proc/loadavg: 2.03 2.07 2.02 3/82 14528
/proc/meminfo: memFree=1470856/2055920 swapFree=4192812/4192956
[pid=14522] ppid=14520 vsize=19604 CPUtime=14.35
/proc/14522/stat : 14522 (pcs.small) R 14520 14522 13922 0 -1 4194304 5263 822 0 0 1433 2 0 0 25 0 1 0 58305715 20074496 3809 996147200 134512640 135095119 4294956304 18446744073709551615 134555250 0 0 4096 0 0 0 0 17 1 0 0
/proc/14522/statm: 4901 3809 387 142 0 3855 0
Current children cumulated CPU time (s) 14.35
Current children cumulated vsize (KiB) 19604

[startup+14.6026 s]
/proc/loadavg: 2.03 2.07 2.02 3/82 14528
/proc/meminfo: memFree=1470856/2055920 swapFree=4192812/4192956
[pid=14522] ppid=14520 vsize=15504 CPUtime=14.44
/proc/14522/stat : 14522 (pcs.small) R 14520 14522 13922 0 -1 4194304 5269 822 0 0 1442 2 0 0 25 0 1 0 58305715 15876096 3208 996147200 134512640 135095119 4294956304 18446744073709551615 134644378 0 0 4096 0 0 0 0 17 1 0 0
/proc/14522/statm: 3876 3208 387 142 0 2830 0
Current children cumulated CPU time (s) 14.44
Current children cumulated vsize (KiB) 15504

Child status: 0
Real time (s): 14.6339
CPU time (s): 14.4928
CPU user time (s): 14.4598
CPU system time (s): 0.032994
CPU usage (%): 99.0361
Max. virtual memory (cumulated for all children) (KiB): 19736

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 14.4598
system time used= 0.032994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6093
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= 608

runsolver used 0.017997 second user time and 0.054991 second system time

The end

Launcher Data 

Begin job on node19 at 2009-07-16 04:46:31
IDJOB=2074410
IDBENCH=56099
IDSOLVER=734
FILE ID=node19/2074410-1247712391
PBS_JOBID= 9521411
Free space on /tmp= 66392 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/chessboardColoration/normalized-cc-7-7-2.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2074410-1247712391/watcher-2074410-1247712391 -o /tmp/evaluation-result-2074410-1247712391/solver-2074410-1247712391 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1672830471 HOME/instance-2074410-1247712391.xml

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

MD5SUM BENCH= 1f8c8222dee021c25c644cdfea44a70e
RANDOM SEED=1672830471

node19.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		: 3000.211
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		: 3000.211
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:       1485360 kB
Buffers:         61740 kB
Cached:         397804 kB
SwapCached:          0 kB
Active:          82904 kB
Inactive:       419480 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1485360 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1800 kB
Writeback:           0 kB
Mapped:          63252 kB
Slab:            53152 kB
Committed_AS:   625108 kB
PageTables:       1984 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= 66392 MiB
End job on node19 at 2009-07-16 04:46:46