Trace number 2090228

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 12.7891 12.9046

DiagnosticValue
ASSIGNMENTS25760

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 1885415287
0.18/0.23	c Constructing HOME/instance-2090228-1247731014.xml  with 3256 constraints
0.18/0.23	c Solving 25760 backtracks 16 restarts
12.77/12.90	s UNSATISFIABLE
12.77/12.90	d ASSIGNMENTS 25760

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-2090228-1247731014/watcher-2090228-1247731014 -o /tmp/evaluation-result-2090228-1247731014/solver-2090228-1247731014 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1885415287 HOME/instance-2090228-1247731014.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: 1.91 1.95 1.98 4/72 17172
/proc/meminfo: memFree=1432672/2055920 swapFree=4192812/4192956
[pid=17172] ppid=17170 vsize=18576 CPUtime=0
/proc/17172/stat : 17172 (runsolver) R 17170 17172 16710 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 60168313 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 269757246759 0 0 4096 24578 0 0 0 17 1 0 0
/proc/17172/statm: 4644 284 249 26 0 2626 0

[startup+0.0715229 s]
/proc/loadavg: 1.91 1.95 1.98 4/72 17172
/proc/meminfo: memFree=1432672/2055920 swapFree=4192812/4192956
[pid=17172] ppid=17170 vsize=5308 CPUtime=0.05
/proc/17172/stat : 17172 (pcs.small) R 17170 17172 16710 0 -1 4194304 1045 822 0 0 5 0 0 0 18 0 1 0 60168313 5435392 654 996147200 134512640 135095119 4294956304 18446744073709551615 134643000 0 0 4096 0 0 0 0 17 1 0 0
/proc/17172/statm: 1327 654 378 142 0 281 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 5308

[startup+0.101525 s]
/proc/loadavg: 1.91 1.95 1.98 4/72 17172
/proc/meminfo: memFree=1432672/2055920 swapFree=4192812/4192956
[pid=17172] ppid=17170 vsize=5308 CPUtime=0.08
/proc/17172/stat : 17172 (pcs.small) R 17170 17172 16710 0 -1 4194304 1046 822 0 0 8 0 0 0 18 0 1 0 60168313 5435392 655 996147200 134512640 135095119 4294956304 18446744073709551615 134616916 0 0 4096 0 0 0 0 17 1 0 0
/proc/17172/statm: 1327 655 378 142 0 281 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5308

[startup+0.301552 s]
/proc/loadavg: 1.91 1.95 1.98 4/72 17172
/proc/meminfo: memFree=1432672/2055920 swapFree=4192812/4192956
[pid=17172] ppid=17170 vsize=5436 CPUtime=0.28
/proc/17172/stat : 17172 (pcs.small) R 17170 17172 16710 0 -1 4194304 1086 822 0 0 28 0 0 0 19 0 1 0 60168313 5566464 662 996147200 134512640 135095119 4294956304 18446744073709551615 12312754 0 0 4096 0 0 0 0 17 1 0 0
/proc/17172/statm: 1359 662 378 142 0 313 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5436

[startup+0.701605 s]
/proc/loadavg: 1.91 1.95 1.98 4/72 17172
/proc/meminfo: memFree=1432672/2055920 swapFree=4192812/4192956
[pid=17172] ppid=17170 vsize=5696 CPUtime=0.67
/proc/17172/stat : 17172 (pcs.small) R 17170 17172 16710 0 -1 4194304 1149 822 0 0 67 0 0 0 23 0 1 0 60168313 5832704 725 996147200 134512640 135095119 4294956304 18446744073709551615 134607138 0 0 4096 0 0 0 0 17 1 0 0
/proc/17172/statm: 1424 725 378 142 0 378 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 5696

[startup+1.50171 s]
/proc/loadavg: 1.92 1.95 1.98 3/73 17178
/proc/meminfo: memFree=1430808/2055920 swapFree=4192812/4192956
[pid=17172] ppid=17170 vsize=6728 CPUtime=1.46
/proc/17172/stat : 17172 (pcs.small) R 17170 17172 16710 0 -1 4194304 1491 822 0 0 146 0 0 0 25 0 1 0 60168313 6889472 937 996147200 134512640 135095119 4294956304 18446744073709551615 134589562 0 0 4096 0 0 0 0 17 1 0 0
/proc/17172/statm: 1682 937 378 142 0 636 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 6728

[startup+3.10292 s]
/proc/loadavg: 1.92 1.95 1.98 3/73 17178
/proc/meminfo: memFree=1429784/2055920 swapFree=4192812/4192956
[pid=17172] ppid=17170 vsize=7752 CPUtime=3.05
/proc/17172/stat : 17172 (pcs.small) R 17170 17172 16710 0 -1 4194304 1861 822 0 0 305 0 0 0 25 0 1 0 60168313 7938048 1178 996147200 134512640 135095119 4294956304 18446744073709551615 134642962 0 0 4096 0 0 0 0 17 1 0 0
/proc/17172/statm: 1938 1178 378 142 0 892 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 7752

[startup+6.30135 s]
/proc/loadavg: 1.93 1.95 1.98 3/73 17178
/proc/meminfo: memFree=1427352/2055920 swapFree=4192812/4192956
[pid=17172] ppid=17170 vsize=10464 CPUtime=6.23
/proc/17172/stat : 17172 (pcs.small) R 17170 17172 16710 0 -1 4194304 2715 822 0 0 622 1 0 0 25 0 1 0 60168313 10715136 1646 996147200 134512640 135095119 4294956304 18446744073709551615 134615507 0 0 4096 0 0 0 0 17 1 0 0
/proc/17172/statm: 2616 1646 378 142 0 1570 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 10464

[startup+12.7012 s]
/proc/loadavg: 1.93 1.96 1.98 3/73 17178
/proc/meminfo: memFree=1424664/2055920 swapFree=4192812/4192956
[pid=17172] ppid=17170 vsize=13820 CPUtime=12.57
/proc/17172/stat : 17172 (pcs.small) R 17170 17172 16710 0 -1 4194304 3829 822 0 0 1255 2 0 0 25 0 1 0 60168313 14151680 2247 996147200 134512640 135095119 4294956304 18446744073709551615 134607029 0 0 4096 0 0 0 0 17 1 0 0
/proc/17172/statm: 3455 2247 378 142 0 2409 0
Current children cumulated CPU time (s) 12.57
Current children cumulated vsize (KiB) 13820

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

[startup+12.9012 s]
/proc/loadavg: 1.93 1.96 1.98 3/73 17178
/proc/meminfo: memFree=1424664/2055920 swapFree=4192812/4192956
[pid=17172] ppid=17170 vsize=8692 CPUtime=12.77
/proc/17172/stat : 17172 (pcs.small) R 17170 17172 16710 0 -1 4194304 3843 822 0 0 1275 2 0 0 25 0 1 0 60168313 8900608 1515 996147200 134512640 135095119 4294956304 18446744073709551615 12308487 0 0 4096 0 0 0 0 17 1 0 0
/proc/17172/statm: 2173 1515 378 142 0 1127 0
Current children cumulated CPU time (s) 12.77
Current children cumulated vsize (KiB) 8692

Child status: 0
Real time (s): 12.9046
CPU time (s): 12.7891
CPU user time (s): 12.7571
CPU system time (s): 0.031995
CPU usage (%): 99.1044
Max. virtual memory (cumulated for all children) (KiB): 13820

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.7571
system time used= 0.031995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4668
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= 299

runsolver used 0.013997 second user time and 0.046992 second system time

The end

Launcher Data 

Begin job on node13 at 2009-07-16 09:56:54
IDJOB=2090228
IDBENCH=59709
IDSOLVER=734
FILE ID=node13/2090228-1247731014
PBS_JOBID= 9521501
Free space on /tmp= 66304 MiB

SOLVER NAME= pcs-restart 0.2.restart
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-2090228-1247731014/watcher-2090228-1247731014 -o /tmp/evaluation-result-2090228-1247731014/solver-2090228-1247731014 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1885415287 HOME/instance-2090228-1247731014.xml

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

MD5SUM BENCH= b3932d9fb8a4f9cedb577073d46ecd26
RANDOM SEED=1885415287

node13.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		: 3000.241
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		: 3000.241
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:       1433152 kB
Buffers:         86420 kB
Cached:         375436 kB
SwapCached:          0 kB
Active:         258680 kB
Inactive:       282072 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1433152 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2048 kB
Writeback:           0 kB
Mapped:          90328 kB
Slab:            67304 kB
Committed_AS:   579672 kB
PageTables:       1996 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= 66304 MiB
End job on node13 at 2009-07-16 09:57:07