Trace number 2082041

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
bpsolver 09UNSAT 16.4505 16.5997

General information on the benchmark

Namecsp/super-queens/
normalized-super-queens-14.xml
MD5SUM14c2fce2e4d4e8fdcde4ad542c4fc2d2
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.687894
Satisfiable
(Un)Satisfiability was proved
Number of variables160
Number of constraints9560
Maximum constraint arity2
Maximum domain size80
Number of constraints which are defined in extension0
Number of constraints which are defined in intension9560
Global constraints used (with number of constraints)

Solver Data 

0.00/0.02	c bpsolver version 6.29.2009
0.00/0.02	c converting(HOME/instance-2082041-1247374526)
1.68/1.72	c Converted in 824 ms
1.88/1.95	c solving(HOME/instance-2082041-1247374526,1800000)
1.88/1.95	c solving(HOME/instance-2082041-1247374526,1800000)
16.35/16.59	c before_labeling
16.35/16.59	s UNSATISFIABLE
16.35/16.59	
16.35/16.59	
16.35/16.59	c Time=14721 ms Backtracks=0
16.35/16.59

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-2082041-1247374526/watcher-2082041-1247374526 -o /tmp/evaluation-result-2082041-1247374526/solver-2082041-1247374526 -C 1800 -W 2000 -M 900 HOME/solver HOME/instance-2082041-1247374526 1800 

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 2.00 2.00 4/74 23869
/proc/meminfo: memFree=1252512/2055920 swapFree=4192812/4192956
[pid=23869] ppid=23867 vsize=18576 CPUtime=0
/proc/23869/stat : 23869 (runsolver) R 23867 23869 19700 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 24518704 19021824 284 996147200 4194304 4302564 548682068528 18446744073709551615 225612197159 0 0 4096 24578 0 0 0 17 1 0 0
/proc/23869/statm: 4644 284 249 26 0 2626 0

[startup+0.0467269 s]
/proc/loadavg: 1.99 2.00 2.00 4/74 23869
/proc/meminfo: memFree=1252512/2055920 swapFree=4192812/4192956
[pid=23869] ppid=23867 vsize=62208 CPUtime=0.03
/proc/23869/stat : 23869 (bprolog) R 23867 23869 19700 0 -1 4194304 1114 0 0 0 2 1 0 0 20 0 1 0 24518704 63700992 827 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/23869/statm: 15552 827 177 144 0 15036 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 62208

[startup+0.102725 s]
/proc/loadavg: 1.99 2.00 2.00 4/74 23869
/proc/meminfo: memFree=1252512/2055920 swapFree=4192812/4192956
[pid=23869] ppid=23867 vsize=62208 CPUtime=0.08
/proc/23869/stat : 23869 (bprolog) R 23867 23869 19700 0 -1 4194304 1116 0 0 0 5 3 0 0 20 0 1 0 24518704 63700992 829 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/23869/statm: 15552 829 177 144 0 15036 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 62208

[startup+0.302741 s]
/proc/loadavg: 1.99 2.00 2.00 4/74 23869
/proc/meminfo: memFree=1252512/2055920 swapFree=4192812/4192956
[pid=23869] ppid=23867 vsize=62208 CPUtime=0.28
/proc/23869/stat : 23869 (bprolog) R 23867 23869 19700 0 -1 4194304 1120 0 0 0 15 13 0 0 21 0 1 0 24518704 63700992 833 996147200 134512640 135105188 4294956096 18446744073709551615 134563287 0 0 4096 2 0 0 0 17 1 0 0
/proc/23869/statm: 15552 833 177 144 0 15036 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 62208

[startup+0.701777 s]
/proc/loadavg: 1.99 2.00 2.00 4/74 23869
/proc/meminfo: memFree=1252512/2055920 swapFree=4192812/4192956
[pid=23869] ppid=23867 vsize=62208 CPUtime=0.68
/proc/23869/stat : 23869 (bprolog) R 23867 23869 19700 0 -1 4194304 1126 0 0 0 34 34 0 0 25 0 1 0 24518704 63700992 839 996147200 134512640 135105188 4294956096 18446744073709551615 134642597 0 0 4096 2 0 0 0 17 1 0 0
/proc/23869/statm: 15552 839 177 144 0 15036 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 62208

[startup+1.50185 s]
/proc/loadavg: 1.99 2.00 2.00 3/75 23870
/proc/meminfo: memFree=1249368/2055920 swapFree=4192812/4192956
[pid=23869] ppid=23867 vsize=62208 CPUtime=1.47
/proc/23869/stat : 23869 (bprolog) R 23867 23869 19700 0 -1 4194304 1139 0 0 0 73 74 0 0 25 0 1 0 24518704 63700992 852 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/23869/statm: 15552 852 177 144 0 15036 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 62208

[startup+3.10199 s]
/proc/loadavg: 1.99 2.00 2.00 3/75 23870
/proc/meminfo: memFree=1238936/2055920 swapFree=4192812/4192956
[pid=23869] ppid=23867 vsize=74788 CPUtime=3.06
/proc/23869/stat : 23869 (bprolog) R 23867 23869 19700 0 -1 4194304 3716 0 0 0 219 87 0 0 25 0 1 0 24518704 76582912 3424 996147200 134512640 135105188 4294956096 18446744073709551615 134800642 0 0 4096 2 0 0 0 17 1 0 0
/proc/23869/statm: 18697 3424 187 144 0 18181 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 74788

[startup+6.30126 s]
/proc/loadavg: 1.99 2.00 2.00 3/75 23870
/proc/meminfo: memFree=1238552/2055920 swapFree=4192812/4192956
[pid=23869] ppid=23867 vsize=74788 CPUtime=6.23
/proc/23869/stat : 23869 (bprolog) R 23867 23869 19700 0 -1 4194304 3886 0 0 0 536 87 0 0 25 0 1 0 24518704 76582912 3594 996147200 134512640 135105188 4294956096 18446744073709551615 134684270 0 0 4096 2 0 0 0 17 1 0 0
/proc/23869/statm: 18697 3594 187 144 0 18181 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 74788

[startup+12.7018 s]
/proc/loadavg: 1.99 2.00 2.00 3/75 23870
/proc/meminfo: memFree=1235224/2055920 swapFree=4192812/4192956
[pid=23869] ppid=23867 vsize=74788 CPUtime=12.58
/proc/23869/stat : 23869 (bprolog) R 23867 23869 19700 0 -1 4194304 4595 0 0 0 1170 88 0 0 25 0 1 0 24518704 76582912 4303 996147200 134512640 135105188 4294956096 18446744073709551615 134800199 0 0 4096 2 0 0 0 17 1 0 0
/proc/23869/statm: 18697 4303 187 144 0 18181 0
Current children cumulated CPU time (s) 12.58
Current children cumulated vsize (KiB) 74788

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

[startup+14.307 s]
/proc/loadavg: 1.99 2.00 2.00 3/75 23870
/proc/meminfo: memFree=1234456/2055920 swapFree=4192812/4192956
[pid=23869] ppid=23867 vsize=74788 CPUtime=14.17
/proc/23869/stat : 23869 (bprolog) R 23867 23869 19700 0 -1 4194304 4734 0 0 0 1329 88 0 0 25 0 1 0 24518704 76582912 4442 996147200 134512640 135105188 4294956096 18446744073709551615 134800246 0 0 4096 2 0 0 0 17 1 0 0
/proc/23869/statm: 18697 4442 187 144 0 18181 0
Current children cumulated CPU time (s) 14.17
Current children cumulated vsize (KiB) 74788

[startup+15.9011 s]
/proc/loadavg: 1.99 2.00 2.00 3/75 23870
/proc/meminfo: memFree=1234072/2055920 swapFree=4192812/4192956
[pid=23869] ppid=23867 vsize=74788 CPUtime=15.75
/proc/23869/stat : 23869 (bprolog) R 23867 23869 19700 0 -1 4194304 4877 0 0 0 1487 88 0 0 25 0 1 0 24518704 76582912 4585 996147200 134512640 135105188 4294956096 18446744073709551615 134684416 0 0 4096 2 0 0 0 17 1 0 0
/proc/23869/statm: 18697 4585 187 144 0 18181 0
Current children cumulated CPU time (s) 15.75
Current children cumulated vsize (KiB) 74788

[startup+16.3011 s]
/proc/loadavg: 1.99 2.00 2.00 3/75 23870
/proc/meminfo: memFree=1234072/2055920 swapFree=4192812/4192956
[pid=23869] ppid=23867 vsize=74788 CPUtime=16.15
/proc/23869/stat : 23869 (bprolog) R 23867 23869 19700 0 -1 4194304 4915 0 0 0 1527 88 0 0 25 0 1 0 24518704 76582912 4623 996147200 134512640 135105188 4294956096 18446744073709551615 134684256 0 0 4096 2 0 0 0 17 1 0 0
/proc/23869/statm: 18697 4623 187 144 0 18181 0
Current children cumulated CPU time (s) 16.15
Current children cumulated vsize (KiB) 74788

[startup+16.5061 s]
/proc/loadavg: 1.99 2.00 2.00 3/75 23870
/proc/meminfo: memFree=1233688/2055920 swapFree=4192812/4192956
[pid=23869] ppid=23867 vsize=74788 CPUtime=16.35
/proc/23869/stat : 23869 (bprolog) R 23867 23869 19700 0 -1 4194304 4934 0 0 0 1547 88 0 0 25 0 1 0 24518704 76582912 4642 996147200 134512640 135105188 4294956096 18446744073709551615 134800684 0 0 4096 2 0 0 0 17 1 0 0
/proc/23869/statm: 18697 4642 187 144 0 18181 0
Current children cumulated CPU time (s) 16.35
Current children cumulated vsize (KiB) 74788

Child status: 0
Real time (s): 16.5997
CPU time (s): 16.4505
CPU user time (s): 15.5646
CPU system time (s): 0.885865
CPU usage (%): 99.101
Max. virtual memory (cumulated for all children) (KiB): 74788

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.5646
system time used= 0.885865
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4944
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= 3
involuntary context switches= 397

runsolver used 0.022996 second user time and 0.049992 second system time

The end

Launcher Data 

Begin job on node31 at 2009-07-12 06:55:26
IDJOB=2082041
IDBENCH=57524
IDSOLVER=770
FILE ID=node31/2082041-1247374526
PBS_JOBID= 9507080
Free space on /tmp= 66196 MiB

SOLVER NAME= bpsolver 09
BENCH NAME= CPAI08/csp/super-queens/normalized-super-queens-14.xml
COMMAND LINE= HOME/solver BENCHNAMENOEXT TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2082041-1247374526/watcher-2082041-1247374526 -o /tmp/evaluation-result-2082041-1247374526/solver-2082041-1247374526 -C 1800 -W 2000 -M 900  HOME/solver HOME/instance-2082041-1247374526 1800

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

MD5SUM BENCH= 14c2fce2e4d4e8fdcde4ad542c4fc2d2
RANDOM SEED=816053125

node31.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		: 3000.216
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	: 5931.00
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		: 3000.216
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:       1252992 kB
Buffers:         20928 kB
Cached:         361844 kB
SwapCached:          0 kB
Active:         666316 kB
Inactive:        72472 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1252992 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2844 kB
Writeback:           0 kB
Mapped:         367112 kB
Slab:            48324 kB
Committed_AS:   514704 kB
PageTables:       2664 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66192 MiB
End job on node31 at 2009-07-12 06:55:42