Trace number 2090227

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 13.255 13.385

DiagnosticValue
ASSIGNMENTS26660

General information on the benchmark

Namecsp/rand-2-30-15/
normalized-rand-2-30-15-306-230-12_ext.xml
MD5SUMb3932d9fb8a4f9cedb577073d46ecd26
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.704892
Satisfiable
(Un)Satisfiability was proved
Number of variables30
Number of constraints221
Maximum constraint arity2
Maximum domain size15
Number of constraints which are defined in extension221
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.18/0.23	c Seed is 931944682
0.18/0.23	c Constructing HOME/instance-2090227-1247731013.xml  with 3256 constraints
0.18/0.23	c Solving 26660 backtracks 16 restarts
13.16/13.38	s UNSATISFIABLE
13.16/13.38	d ASSIGNMENTS 26660

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-2090227-1247731013/watcher-2090227-1247731013 -o /tmp/evaluation-result-2090227-1247731013/solver-2090227-1247731013 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 931944682 HOME/instance-2090227-1247731013.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: 1.99 1.97 1.99 4/81 17711
/proc/meminfo: memFree=1533400/2055920 swapFree=4192812/4192956
[pid=17711] ppid=17709 vsize=18576 CPUtime=0
/proc/17711/stat : 17711 (runsolver) R 17709 17711 17250 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 60168717 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 244671114535 0 0 4096 24578 0 0 0 17 1 0 0
/proc/17711/statm: 4644 284 249 26 0 2626 0

[startup+0.1104 s]
/proc/loadavg: 1.99 1.97 1.99 4/81 17711
/proc/meminfo: memFree=1533400/2055920 swapFree=4192812/4192956
[pid=17711] ppid=17709 vsize=5308 CPUtime=0.08
/proc/17711/stat : 17711 (pcs.small) R 17709 17711 17250 0 -1 4194304 1046 822 0 0 8 0 0 0 18 0 1 0 60168717 5435392 655 996147200 134512640 135095119 4294956304 18446744073709551615 134570818 0 0 4096 0 0 0 0 17 1 0 0
/proc/17711/statm: 1327 655 378 142 0 281 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5308

[startup+0.202408 s]
/proc/loadavg: 1.99 1.97 1.99 4/81 17711
/proc/meminfo: memFree=1533400/2055920 swapFree=4192812/4192956
[pid=17711] ppid=17709 vsize=5308 CPUtime=0.18
/proc/17711/stat : 17711 (pcs.small) R 17709 17711 17250 0 -1 4194304 1049 822 0 0 18 0 0 0 18 0 1 0 60168717 5435392 658 996147200 134512640 135095119 4294956304 18446744073709551615 134617201 0 0 4096 0 0 0 0 17 1 0 0
/proc/17711/statm: 1327 658 378 142 0 281 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 5308

[startup+0.302419 s]
/proc/loadavg: 1.99 1.97 1.99 4/81 17711
/proc/meminfo: memFree=1533400/2055920 swapFree=4192812/4192956
[pid=17711] ppid=17709 vsize=5568 CPUtime=0.28
/proc/17711/stat : 17711 (pcs.small) R 17709 17711 17250 0 -1 4194304 1105 822 0 0 28 0 0 0 19 0 1 0 60168717 5701632 681 996147200 134512640 135095119 4294956304 18446744073709551615 134637393 0 0 4096 0 0 0 0 17 1 0 0
/proc/17711/statm: 1392 681 378 142 0 346 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5568

[startup+0.702462 s]
/proc/loadavg: 1.99 1.97 1.99 4/81 17711
/proc/meminfo: memFree=1533400/2055920 swapFree=4192812/4192956
[pid=17711] ppid=17709 vsize=5696 CPUtime=0.67
/proc/17711/stat : 17711 (pcs.small) R 17709 17711 17250 0 -1 4194304 1180 822 0 0 67 0 0 0 23 0 1 0 60168717 5832704 723 996147200 134512640 135095119 4294956304 18446744073709551615 134616977 0 0 4096 0 0 0 0 17 1 0 0
/proc/17711/statm: 1424 723 378 142 0 378 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 5696

[startup+1.50158 s]
/proc/loadavg: 1.99 1.97 1.99 3/82 17717
/proc/meminfo: memFree=1531536/2055920 swapFree=4192812/4192956
[pid=17711] ppid=17709 vsize=6728 CPUtime=1.46
/proc/17711/stat : 17711 (pcs.small) R 17709 17711 17250 0 -1 4194304 1527 822 0 0 146 0 0 0 25 0 1 0 60168717 6889472 940 996147200 134512640 135095119 4294956304 18446744073709551615 134636931 0 0 4096 0 0 0 0 17 1 0 0
/proc/17711/statm: 1682 940 378 142 0 636 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 6728

[startup+3.10175 s]
/proc/loadavg: 1.99 1.97 1.99 3/82 17717
/proc/meminfo: memFree=1530512/2055920 swapFree=4192812/4192956
[pid=17711] ppid=17709 vsize=7764 CPUtime=3.05
/proc/17711/stat : 17711 (pcs.small) R 17709 17711 17250 0 -1 4194304 1896 822 0 0 304 1 0 0 25 0 1 0 60168717 7950336 1180 996147200 134512640 135095119 4294956304 18446744073709551615 134589562 0 0 4096 0 0 0 0 17 1 0 0
/proc/17711/statm: 1941 1180 378 142 0 895 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 7764

[startup+6.30105 s]
/proc/loadavg: 1.99 1.97 1.99 3/82 17717
/proc/meminfo: memFree=1528144/2055920 swapFree=4192812/4192956
[pid=17711] ppid=17709 vsize=10480 CPUtime=6.22
/proc/17711/stat : 17711 (pcs.small) R 17709 17711 17250 0 -1 4194304 2754 822 0 0 621 1 0 0 25 0 1 0 60168717 10731520 1652 996147200 134512640 135095119 4294956304 18446744073709551615 134589545 0 0 4096 0 0 0 0 17 1 0 0
/proc/17711/statm: 2620 1652 378 142 0 1574 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 10480

[startup+12.7017 s]
/proc/loadavg: 1.99 1.97 1.99 3/82 17717
/proc/meminfo: memFree=1525520/2055920 swapFree=4192812/4192956
[pid=17711] ppid=17709 vsize=13824 CPUtime=12.57
/proc/17711/stat : 17711 (pcs.small) R 17709 17711 17250 0 -1 4194304 3888 822 0 0 1255 2 0 0 25 0 1 0 60168717 14155776 2273 996147200 134512640 135095119 4294956304 18446744073709551615 134643010 0 0 4096 0 0 0 0 17 1 0 0
/proc/17711/statm: 3456 2273 378 142 0 2410 0
Current children cumulated CPU time (s) 12.57
Current children cumulated vsize (KiB) 13824

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

[startup+12.8017 s]
/proc/loadavg: 1.99 1.97 1.99 3/82 17717
/proc/meminfo: memFree=1525520/2055920 swapFree=4192812/4192956
[pid=17711] ppid=17709 vsize=13824 CPUtime=12.66
/proc/17711/stat : 17711 (pcs.small) R 17709 17711 17250 0 -1 4194304 3895 822 0 0 1264 2 0 0 25 0 1 0 60168717 14155776 2280 996147200 134512640 135095119 4294956304 18446744073709551615 134642931 0 0 4096 0 0 0 0 17 1 0 0
/proc/17711/statm: 3456 2280 378 142 0 2410 0
Current children cumulated CPU time (s) 12.66
Current children cumulated vsize (KiB) 13824

[startup+13.2018 s]
/proc/loadavg: 1.99 1.97 1.99 3/82 17717
/proc/meminfo: memFree=1525200/2055920 swapFree=4192812/4192956
[pid=17711] ppid=17709 vsize=13956 CPUtime=13.06
/proc/17711/stat : 17711 (pcs.small) R 17709 17711 17250 0 -1 4194304 3926 822 0 0 1304 2 0 0 25 0 1 0 60168717 14290944 2311 996147200 134512640 135095119 4294956304 18446744073709551615 134570976 0 0 4096 0 0 0 0 17 1 0 0
/proc/17711/statm: 3489 2311 378 142 0 2443 0
Current children cumulated CPU time (s) 13.06
Current children cumulated vsize (KiB) 13956

[startup+13.3068 s]
/proc/loadavg: 1.99 1.97 1.99 3/82 17717
/proc/meminfo: memFree=1525200/2055920 swapFree=4192812/4192956
[pid=17711] ppid=17709 vsize=13956 CPUtime=13.16
/proc/17711/stat : 17711 (pcs.small) R 17709 17711 17250 0 -1 4194304 3934 822 0 0 1314 2 0 0 25 0 1 0 60168717 14290944 2319 996147200 134512640 135095119 4294956304 18446744073709551615 134642982 0 0 4096 0 0 0 0 17 1 0 0
/proc/17711/statm: 3489 2319 378 142 0 2443 0
Current children cumulated CPU time (s) 13.16
Current children cumulated vsize (KiB) 13956

Child status: 0
Real time (s): 13.385
CPU time (s): 13.255
CPU user time (s): 13.224
CPU system time (s): 0.030995
CPU usage (%): 99.0289
Max. virtual memory (cumulated for all children) (KiB): 13956

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 13.224
system time used= 0.030995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4762
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= 570

runsolver used 0.014997 second user time and 0.054991 second system time

The end

Launcher Data 

Begin job on node7 at 2009-07-16 09:56:53
IDJOB=2090227
IDBENCH=59709
IDSOLVER=733
FILE ID=node7/2090227-1247731013
PBS_JOBID= 9521631
Free space on /tmp= 66120 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/rand-2-30-15/normalized-rand-2-30-15-306-230-12_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2090227-1247731013/watcher-2090227-1247731013 -o /tmp/evaluation-result-2090227-1247731013/solver-2090227-1247731013 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 931944682 HOME/instance-2090227-1247731013.xml

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

MD5SUM BENCH= b3932d9fb8a4f9cedb577073d46ecd26
RANDOM SEED=931944682

node7.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		: 3000.231
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		: 3000.231
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:       1533880 kB
Buffers:         82108 kB
Cached:         330720 kB
SwapCached:          0 kB
Active:          74196 kB
Inactive:       371688 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1533880 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2208 kB
Writeback:           0 kB
Mapped:          53416 kB
Slab:            61348 kB
Committed_AS:   585620 kB
PageTables:       1944 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= 66116 MiB
End job on node7 at 2009-07-16 09:57:07