Trace number 2090194

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 3.83642 3.8793

DiagnosticValue
ASSIGNMENTS10857

General information on the benchmark

Namecsp/rand-2-30-15/
normalized-rand-2-30-15-306-230-6_ext.xml
MD5SUMd75f282008622a5248c9f974d30ca5e0
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 benchmark0.419936
Satisfiable
(Un)Satisfiability was proved
Number of variables30
Number of constraints223
Maximum constraint arity2
Maximum domain size15
Number of constraints which are defined in extension223
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
0.08/0.15	c Seed is 295430448
0.08/0.15	c Constructing HOME/instance-2090194-1247731008.xml  with 3295 constraints
0.08/0.15	c Solving 10857 backtracks 14 restarts
3.74/3.87	s UNSATISFIABLE
3.74/3.87	d ASSIGNMENTS 10857

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-2090194-1247731008/watcher-2090194-1247731008 -o /tmp/evaluation-result-2090194-1247731008/solver-2090194-1247731008 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 295430448 HOME/instance-2090194-1247731008.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: 1.94 1.98 1.99 4/81 16802
/proc/meminfo: memFree=1634072/2055920 swapFree=4192812/4192956
[pid=16802] ppid=16800 vsize=18576 CPUtime=0
/proc/16802/stat : 16802 (runsolver) R 16800 16802 16306 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 60167886 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 214919867687 0 0 4096 24578 0 0 0 17 1 0 0
/proc/16802/statm: 4644 284 249 26 0 2626 0

[startup+0.085073 s]
/proc/loadavg: 1.94 1.98 1.99 4/81 16802
/proc/meminfo: memFree=1634072/2055920 swapFree=4192812/4192956
[pid=16802] ppid=16800 vsize=5308 CPUtime=0.06
/proc/16802/stat : 16802 (pcs.small) R 16800 16802 16306 0 -1 4194304 1047 822 0 0 6 0 0 0 18 0 1 0 60167886 5435392 656 996147200 134512640 135095119 4294956304 18446744073709551615 134580663 0 0 4096 0 0 0 0 17 1 0 0
/proc/16802/statm: 1327 656 378 142 0 281 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 5308

[startup+0.102073 s]
/proc/loadavg: 1.94 1.98 1.99 4/81 16802
/proc/meminfo: memFree=1634072/2055920 swapFree=4192812/4192956
[pid=16802] ppid=16800 vsize=5308 CPUtime=0.08
/proc/16802/stat : 16802 (pcs.small) R 16800 16802 16306 0 -1 4194304 1047 822 0 0 8 0 0 0 18 0 1 0 60167886 5435392 656 996147200 134512640 135095119 4294956304 18446744073709551615 134642575 0 0 4096 0 0 0 0 17 1 0 0
/proc/16802/statm: 1327 656 378 142 0 281 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5308

[startup+0.301116 s]
/proc/loadavg: 1.94 1.98 1.99 4/81 16802
/proc/meminfo: memFree=1634072/2055920 swapFree=4192812/4192956
[pid=16802] ppid=16800 vsize=5568 CPUtime=0.28
/proc/16802/stat : 16802 (pcs.small) R 16800 16802 16306 0 -1 4194304 1103 822 0 0 28 0 0 0 19 0 1 0 60167886 5701632 679 996147200 134512640 135095119 4294956304 18446744073709551615 134599579 0 0 4096 0 0 0 0 17 1 0 0
/proc/16802/statm: 1392 679 378 142 0 346 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5568

[startup+0.702202 s]
/proc/loadavg: 1.94 1.98 1.99 4/81 16802
/proc/meminfo: memFree=1634072/2055920 swapFree=4192812/4192956
[pid=16802] ppid=16800 vsize=5696 CPUtime=0.67
/proc/16802/stat : 16802 (pcs.small) R 16800 16802 16306 0 -1 4194304 1177 822 0 0 67 0 0 0 23 0 1 0 60167886 5832704 720 996147200 134512640 135095119 4294956304 18446744073709551615 134616992 0 0 4096 0 0 0 0 17 1 0 0
/proc/16802/statm: 1424 720 378 142 0 378 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 5696

[startup+1.50138 s]
/proc/loadavg: 1.94 1.98 1.99 3/82 16808
/proc/meminfo: memFree=1632208/2055920 swapFree=4192812/4192956
[pid=16802] ppid=16800 vsize=6732 CPUtime=1.46
/proc/16802/stat : 16802 (pcs.small) R 16800 16802 16306 0 -1 4194304 1512 822 0 0 146 0 0 0 25 0 1 0 60167886 6893568 925 996147200 134512640 135095119 4294956304 18446744073709551615 134643033 0 0 4096 0 0 0 0 17 1 0 0
/proc/16802/statm: 1683 925 378 142 0 637 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 6732

[startup+3.10172 s]
/proc/loadavg: 1.94 1.98 1.99 3/82 16808
/proc/meminfo: memFree=1631184/2055920 swapFree=4192812/4192956
[pid=16802] ppid=16800 vsize=7632 CPUtime=3.05
/proc/16802/stat : 16802 (pcs.small) R 16800 16802 16306 0 -1 4194304 1859 822 0 0 305 0 0 0 25 0 1 0 60167886 7815168 1143 996147200 134512640 135095119 4294956304 18446744073709551615 134643043 0 0 4096 0 0 0 0 17 1 0 0
/proc/16802/statm: 1908 1143 378 142 0 862 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 7632

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

[startup+3.50181 s]
/proc/loadavg: 1.94 1.98 1.99 3/82 16808
/proc/meminfo: memFree=1630672/2055920 swapFree=4192812/4192956
[pid=16802] ppid=16800 vsize=7760 CPUtime=3.45
/proc/16802/stat : 16802 (pcs.small) R 16800 16802 16306 0 -1 4194304 1917 822 0 0 345 0 0 0 25 0 1 0 60167886 7946240 1201 996147200 134512640 135095119 4294956304 18446744073709551615 134643000 0 0 4096 0 0 0 0 17 1 0 0
/proc/16802/statm: 1940 1201 378 142 0 894 0
Current children cumulated CPU time (s) 3.45
Current children cumulated vsize (KiB) 7760

[startup+3.70185 s]
/proc/loadavg: 1.94 1.98 1.99 3/82 16808
/proc/meminfo: memFree=1630672/2055920 swapFree=4192812/4192956
[pid=16802] ppid=16800 vsize=7888 CPUtime=3.64
/proc/16802/stat : 16802 (pcs.small) R 16800 16802 16306 0 -1 4194304 1943 822 0 0 364 0 0 0 25 0 1 0 60167886 8077312 1227 996147200 134512640 135095119 4294956304 18446744073709551615 134589648 0 0 4096 0 0 0 0 17 1 0 0
/proc/16802/statm: 1972 1227 378 142 0 926 0
Current children cumulated CPU time (s) 3.64
Current children cumulated vsize (KiB) 7888

[startup+3.80187 s]
/proc/loadavg: 1.94 1.98 1.99 3/82 16808
/proc/meminfo: memFree=1630672/2055920 swapFree=4192812/4192956
[pid=16802] ppid=16800 vsize=7888 CPUtime=3.74
/proc/16802/stat : 16802 (pcs.small) R 16800 16802 16306 0 -1 4194304 1957 822 0 0 374 0 0 0 25 0 1 0 60167886 8077312 1241 996147200 134512640 135095119 4294956304 18446744073709551615 9336117 0 0 4096 0 0 0 0 17 1 0 0
/proc/16802/statm: 1972 1241 378 142 0 926 0
Current children cumulated CPU time (s) 3.74
Current children cumulated vsize (KiB) 7888

Child status: 0
Real time (s): 3.8793
CPU time (s): 3.83642
CPU user time (s): 3.82542
CPU system time (s): 0.010998
CPU usage (%): 98.8944
Max. virtual memory (cumulated for all children) (KiB): 7888

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.82542
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2794
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= 171

runsolver used 0.009998 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node10 at 2009-07-16 09:56:48
IDJOB=2090194
IDBENCH=59697
IDSOLVER=733
FILE ID=node10/2090194-1247731008
PBS_JOBID= 9521561
Free space on /tmp= 66364 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/rand-2-30-15/normalized-rand-2-30-15-306-230-6_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2090194-1247731008/watcher-2090194-1247731008 -o /tmp/evaluation-result-2090194-1247731008/solver-2090194-1247731008 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 295430448 HOME/instance-2090194-1247731008.xml

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

MD5SUM BENCH= d75f282008622a5248c9f974d30ca5e0
RANDOM SEED=295430448

node10.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		: 3000.279
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		: 3000.279
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:       1634552 kB
Buffers:         79240 kB
Cached:         236076 kB
SwapCached:          0 kB
Active:         106108 kB
Inactive:       242320 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1634552 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2304 kB
Writeback:           0 kB
Mapped:          53456 kB
Slab:            58096 kB
Committed_AS:   639732 kB
PageTables:       1828 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= 66360 MiB
End job on node10 at 2009-07-16 09:56:52