Trace number 2081251

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 12.851 12.9721

DiagnosticValue
ASSIGNMENTS221818

General information on the benchmark

Namecsp/varDimacs/
normalized-hole-08_ext.xml
MD5SUM2732f8ac626c4257fbb4e256e3914883
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.877865
Satisfiable
(Un)Satisfiability was proved
Number of variables72
Number of constraints297
Maximum constraint arity8
Maximum domain size2
Number of constraints which are defined in extension297
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
0.00/0.02	c Seed is 572918906
0.00/0.02	c Constructing HOME/instance-2081251-1247719448.xml  with 297 constraints
0.00/0.02	c Solving 221818 backtracks 21 restarts
12.76/12.97	s UNSATISFIABLE
12.76/12.97	d ASSIGNMENTS 221818

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-2081251-1247719448/watcher-2081251-1247719448 -o /tmp/evaluation-result-2081251-1247719448/solver-2081251-1247719448 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 572918906 HOME/instance-2081251-1247719448.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 2.00 2.00 4/81 14325
/proc/meminfo: memFree=1119568/2055924 swapFree=4192812/4192956
[pid=14325] ppid=14323 vsize=18576 CPUtime=0
/proc/14325/stat : 14325 (runsolver) R 14323 14325 12424 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 59012246 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 268582841639 0 0 4096 24578 0 0 0 17 1 0 0
/proc/14325/statm: 4644 284 249 26 0 2626 0

[startup+0.0591381 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 14325
/proc/meminfo: memFree=1119568/2055924 swapFree=4192812/4192956
[pid=14325] ppid=14323 vsize=4772 CPUtime=0.04
/proc/14325/stat : 14325 (pcs.small) R 14323 14325 12424 0 -1 4194304 914 813 0 0 4 0 0 0 25 0 1 0 59012246 4886528 523 996147200 134512640 135095119 4294956304 18446744073709551615 134589668 0 0 4096 0 0 0 0 17 1 0 0
/proc/14325/statm: 1193 523 378 142 0 147 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 4772

[startup+0.102146 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 14325
/proc/meminfo: memFree=1119568/2055924 swapFree=4192812/4192956
[pid=14325] ppid=14323 vsize=5436 CPUtime=0.08
/proc/14325/stat : 14325 (pcs.small) R 14323 14325 12424 0 -1 4194304 1042 813 0 0 8 0 0 0 25 0 1 0 59012246 5566464 651 996147200 134512640 135095119 4294956304 18446744073709551615 134555265 0 0 4096 0 0 0 0 17 1 0 0
/proc/14325/statm: 1359 651 378 142 0 313 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5436

[startup+0.301188 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 14325
/proc/meminfo: memFree=1119568/2055924 swapFree=4192812/4192956
[pid=14325] ppid=14323 vsize=7000 CPUtime=0.28
/proc/14325/stat : 14325 (pcs.small) R 14323 14325 12424 0 -1 4194304 1548 813 0 0 28 0 0 0 25 0 1 0 59012246 7168000 1026 996147200 134512640 135095119 4294956304 18446744073709551615 134583044 0 0 4096 0 0 0 0 17 1 0 0
/proc/14325/statm: 1750 1026 378 142 0 704 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 7000

[startup+0.701265 s]
/proc/loadavg: 2.00 2.00 2.00 4/81 14325
/proc/meminfo: memFree=1119568/2055924 swapFree=4192812/4192956
[pid=14325] ppid=14323 vsize=10516 CPUtime=0.68
/proc/14325/stat : 14325 (pcs.small) R 14323 14325 12424 0 -1 4194304 2569 813 0 0 67 1 0 0 25 0 1 0 59012246 10768384 1853 996147200 134512640 135095119 4294956304 18446744073709551615 134606249 0 0 4096 0 0 0 0 17 1 0 0
/proc/14325/statm: 2629 1853 378 142 0 1583 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 10516

[startup+1.50142 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 14331
/proc/meminfo: memFree=1110920/2055924 swapFree=4192812/4192956
[pid=14325] ppid=14323 vsize=17276 CPUtime=1.47
/proc/14325/stat : 14325 (pcs.small) R 14323 14325 12424 0 -1 4194304 4601 813 0 0 145 2 0 0 25 0 1 0 59012246 17690624 3499 996147200 134512640 135095119 4294956304 18446744073709551615 134838329 0 0 4096 0 0 0 0 17 1 0 0
/proc/14325/statm: 4319 3499 378 142 0 3273 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 17276

[startup+3.10174 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 14331
/proc/meminfo: memFree=1101704/2055924 swapFree=4192812/4192956
[pid=14325] ppid=14323 vsize=37312 CPUtime=3.06
/proc/14325/stat : 14325 (pcs.small) R 14323 14325 12424 0 -1 4194304 9394 813 0 0 301 5 0 0 25 0 1 0 59012246 38207488 7522 996147200 134512640 135095119 4294956304 18446744073709551615 2653821 0 0 4096 0 0 0 0 17 1 0 0
/proc/14325/statm: 9328 7522 378 142 0 8282 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 37312

[startup+6.30137 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 14331
/proc/meminfo: memFree=1076872/2055924 swapFree=4192812/4192956
[pid=14325] ppid=14323 vsize=55824 CPUtime=6.22
/proc/14325/stat : 14325 (pcs.small) R 14323 14325 12424 0 -1 4194304 15973 813 0 0 615 7 0 0 25 0 1 0 59012246 57163776 12563 996147200 134512640 135095119 4294956304 18446744073709551615 134589575 0 0 4096 0 0 0 0 17 1 0 0
/proc/14325/statm: 13956 12563 378 142 0 12910 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 55824

[startup+12.7016 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 14331
/proc/meminfo: memFree=1033992/2055924 swapFree=4192812/4192956
[pid=14325] ppid=14323 vsize=101124 CPUtime=12.56
/proc/14325/stat : 14325 (pcs.small) R 14323 14325 12424 0 -1 4194304 29179 813 0 0 1242 14 0 0 25 0 1 0 59012246 103550976 22695 996147200 134512640 135095119 4294956304 18446744073709551615 134617027 0 0 4096 0 0 0 0 17 1 0 0
/proc/14325/statm: 25281 22695 378 142 0 24235 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 101124

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

[startup+12.9017 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 14331
/proc/meminfo: memFree=1033992/2055924 swapFree=4192812/4192956
[pid=14325] ppid=14323 vsize=76672 CPUtime=12.76
/proc/14325/stat : 14325 (pcs.small) R 14323 14325 12424 0 -1 4194304 29219 813 0 0 1262 14 0 0 25 0 1 0 59012246 78512128 18519 996147200 134512640 135095119 4294956304 18446744073709551615 2617342 0 0 4096 0 0 0 0 17 1 0 0
/proc/14325/statm: 19168 18519 378 142 0 18122 0
Current children cumulated CPU time (s) 12.76
Current children cumulated vsize (KiB) 76672

Child status: 0
Real time (s): 12.9721
CPU time (s): 12.851
CPU user time (s): 12.6831
CPU system time (s): 0.167974
CPU usage (%): 99.067
Max. virtual memory (cumulated for all children) (KiB): 101124

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.6831
system time used= 0.167974
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 30035
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= 551

runsolver used 0.020996 second user time and 0.043993 second system time

The end

Launcher Data 

Begin job on node6 at 2009-07-16 06:44:08
IDJOB=2081251
IDBENCH=57381
IDSOLVER=733
FILE ID=node6/2081251-1247719448
PBS_JOBID= 9521477
Free space on /tmp= 66316 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/varDimacs/normalized-hole-08_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2081251-1247719448/watcher-2081251-1247719448 -o /tmp/evaluation-result-2081251-1247719448/solver-2081251-1247719448 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 572918906 HOME/instance-2081251-1247719448.xml

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

MD5SUM BENCH= 2732f8ac626c4257fbb4e256e3914883
RANDOM SEED=572918906

node6.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		: 3000.263
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		: 3000.263
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:      2055924 kB
MemFree:       1120048 kB
Buffers:        107824 kB
Cached:         558100 kB
SwapCached:          0 kB
Active:         413480 kB
Inactive:       426072 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1120048 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1760 kB
Writeback:           0 kB
Mapped:         194060 kB
Slab:            81144 kB
Committed_AS:   717928 kB
PageTables:       2252 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= 66312 MiB
End job on node6 at 2009-07-16 06:44:21