Trace number 2082074

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 111.353 112.216

General information on the benchmark

Namecsp/super-queens/
normalized-super-queens-4.xml
MD5SUM86f27dad5b32c8754684e5fda2e6b575
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 benchmark1.66975
Satisfiable
(Un)Satisfiability was proved
Number of variables240
Number of constraints21540
Maximum constraint arity2
Maximum domain size120
Number of constraints which are defined in extension0
Number of constraints which are defined in intension21540
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-2082074-1247374590)
3.76/3.81	c Converted in 1777 ms
4.26/4.34	c solving(HOME/instance-2082074-1247374590,1800000)
4.26/4.34	c solving(HOME/instance-2082074-1247374590,1800000)
111.33/112.20	c before_labeling
111.33/112.20	s UNSATISFIABLE
111.33/112.20	
111.33/112.20	
111.33/112.20	c Time=107486 ms Backtracks=0
111.33/112.20

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-2082074-1247374590/watcher-2082074-1247374590 -o /tmp/evaluation-result-2082074-1247374590/solver-2082074-1247374590 -C 1800 -W 2000 -M 900 HOME/solver HOME/instance-2082074-1247374590 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: 1.97 1.98 1.99 4/73 25337
/proc/meminfo: memFree=1692984/2055920 swapFree=4192812/4192956
[pid=25337] ppid=25335 vsize=18576 CPUtime=0
/proc/25337/stat : 25337 (runsolver) R 25335 25337 20953 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 24522458 19021824 284 996147200 4194304 4302564 548682068528 18446744073709551615 246406507815 0 0 4096 24578 0 0 0 17 1 0 0
/proc/25337/statm: 4644 284 249 26 0 2626 0

[startup+0.0810891 s]
/proc/loadavg: 1.97 1.98 1.99 4/73 25337
/proc/meminfo: memFree=1692984/2055920 swapFree=4192812/4192956
[pid=25337] ppid=25335 vsize=62208 CPUtime=0.07
/proc/25337/stat : 25337 (bprolog) R 25335 25337 20953 0 -1 4194304 1126 0 0 0 3 4 0 0 20 0 1 0 24522458 63700992 839 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/25337/statm: 15552 839 177 144 0 15036 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 62208

[startup+0.102087 s]
/proc/loadavg: 1.97 1.98 1.99 4/73 25337
/proc/meminfo: memFree=1692984/2055920 swapFree=4192812/4192956
[pid=25337] ppid=25335 vsize=62208 CPUtime=0.09
/proc/25337/stat : 25337 (bprolog) R 25335 25337 20953 0 -1 4194304 1126 0 0 0 4 5 0 0 20 0 1 0 24522458 63700992 839 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/25337/statm: 15552 839 177 144 0 15036 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 62208

[startup+0.301095 s]
/proc/loadavg: 1.97 1.98 1.99 4/73 25337
/proc/meminfo: memFree=1692984/2055920 swapFree=4192812/4192956
[pid=25337] ppid=25335 vsize=62208 CPUtime=0.28
/proc/25337/stat : 25337 (bprolog) R 25335 25337 20953 0 -1 4194304 1129 0 0 0 14 14 0 0 21 0 1 0 24522458 63700992 842 996147200 134512640 135105188 4294956096 18446744073709551615 10783706 0 0 4096 2 0 0 0 17 1 0 0
/proc/25337/statm: 15552 842 177 144 0 15036 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 62208

[startup+0.701132 s]
/proc/loadavg: 1.97 1.98 1.99 4/73 25337
/proc/meminfo: memFree=1692984/2055920 swapFree=4192812/4192956
[pid=25337] ppid=25335 vsize=62208 CPUtime=0.68
/proc/25337/stat : 25337 (bprolog) R 25335 25337 20953 0 -1 4194304 1136 0 0 0 33 35 0 0 25 0 1 0 24522458 63700992 849 996147200 134512640 135105188 4294956096 18446744073709551615 134561552 0 0 4096 2 0 0 0 17 1 0 0
/proc/25337/statm: 15552 849 177 144 0 15036 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 62208

[startup+1.50121 s]
/proc/loadavg: 1.97 1.98 1.99 3/74 25338
/proc/meminfo: memFree=1689840/2055920 swapFree=4192812/4192956
[pid=25337] ppid=25335 vsize=62208 CPUtime=1.47
/proc/25337/stat : 25337 (bprolog) R 25335 25337 20953 0 -1 4194304 1149 0 0 0 69 78 0 0 25 0 1 0 24522458 63700992 862 996147200 134512640 135105188 4294956096 18446744073709551615 134572657 0 0 4096 2 0 0 0 17 1 0 0
/proc/25337/statm: 15552 862 177 144 0 15036 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 62208

[startup+3.10136 s]
/proc/loadavg: 1.97 1.98 1.99 3/74 25338
/proc/meminfo: memFree=1689200/2055920 swapFree=4192812/4192956
[pid=25337] ppid=25335 vsize=62208 CPUtime=3.06
/proc/25337/stat : 25337 (bprolog) R 25335 25337 20953 0 -1 4194304 1176 0 0 0 145 161 0 0 25 0 1 0 24522458 63700992 889 996147200 134512640 135105188 4294956096 18446744073709551615 134603374 0 0 4096 2 0 0 0 17 1 0 0
/proc/25337/statm: 15552 889 177 144 0 15036 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 62208

[startup+6.30166 s]
/proc/loadavg: 1.97 1.98 1.99 3/74 25338
/proc/meminfo: memFree=1665840/2055920 swapFree=4192812/4192956
[pid=25337] ppid=25335 vsize=80632 CPUtime=6.24
/proc/25337/stat : 25337 (bprolog) R 25335 25337 20953 0 -1 4194304 6811 0 0 0 423 201 0 0 25 0 1 0 24522458 82567168 6519 996147200 134512640 135105188 4294956096 18446744073709551615 134570706 0 0 4096 2 0 0 0 17 1 0 0
/proc/25337/statm: 20158 6519 186 144 0 19642 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 80632

[startup+12.7013 s]
/proc/loadavg: 1.98 1.98 1.99 3/74 25338
/proc/meminfo: memFree=1665328/2055920 swapFree=4192812/4192956
[pid=25337] ppid=25335 vsize=80916 CPUtime=12.59
/proc/25337/stat : 25337 (bprolog) R 25335 25337 20953 0 -1 4194304 6948 0 0 0 1058 201 0 0 25 0 1 0 24522458 82857984 6623 996147200 134512640 135105188 4294956096 18446744073709551615 134684382 0 0 4096 2 0 0 0 17 1 0 0
/proc/25337/statm: 20229 6623 187 144 0 19713 0
Current children cumulated CPU time (s) 12.59
Current children cumulated vsize (KiB) 80916

[startup+25.5025 s]
/proc/loadavg: 1.98 1.98 1.99 3/74 25338
/proc/meminfo: memFree=1661552/2055920 swapFree=4192812/4192956
[pid=25337] ppid=25335 vsize=80916 CPUtime=25.29
/proc/25337/stat : 25337 (bprolog) R 25335 25337 20953 0 -1 4194304 7945 0 0 0 2328 201 0 0 25 0 1 0 24522458 82857984 7620 996147200 134512640 135105188 4294956096 18446744073709551615 134684654 0 0 4096 2 0 0 0 17 1 0 0
/proc/25337/statm: 20229 7620 187 144 0 19713 0
Current children cumulated CPU time (s) 25.29
Current children cumulated vsize (KiB) 80916

[startup+51.1029 s]
/proc/loadavg: 2.05 2.00 2.00 3/74 25338
/proc/meminfo: memFree=1654896/2055920 swapFree=4192812/4192956
[pid=25337] ppid=25335 vsize=80916 CPUtime=50.7
/proc/25337/stat : 25337 (bprolog) R 25335 25337 20953 0 -1 4194304 9598 0 0 0 4868 202 0 0 25 0 1 0 24522458 82857984 9273 996147200 134512640 135105188 4294956096 18446744073709551615 134799909 0 0 4096 2 0 0 0 17 1 0 0
/proc/25337/statm: 20229 9273 187 144 0 19713 0
Current children cumulated CPU time (s) 50.7
Current children cumulated vsize (KiB) 80916

[startup+102.307 s]
/proc/loadavg: 2.09 2.02 2.00 3/74 25338
/proc/meminfo: memFree=1647088/2055920 swapFree=4192812/4192956
[pid=25337] ppid=25335 vsize=118076 CPUtime=101.51
/proc/25337/stat : 25337 (bprolog) R 25335 25337 20953 0 -1 4194304 20316 0 0 0 9945 206 0 0 25 0 1 0 24522458 120909824 11168 996147200 134512640 135105188 4294956096 18446744073709551615 134684672 0 0 4096 2 0 0 0 17 1 0 0
/proc/25337/statm: 29519 11168 187 144 0 29003 0
Current children cumulated CPU time (s) 101.51
Current children cumulated vsize (KiB) 118076

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

[startup+108.701 s]
/proc/loadavg: 2.08 2.02 2.00 3/74 25338
/proc/meminfo: memFree=1646128/2055920 swapFree=4192812/4192956
[pid=25337] ppid=25335 vsize=118076 CPUtime=107.85
/proc/25337/stat : 25337 (bprolog) R 25335 25337 20953 0 -1 4194304 20578 0 0 0 10579 206 0 0 25 0 1 0 24522458 120909824 11430 996147200 134512640 135105188 4294956096 18446744073709551615 134800642 0 0 4096 2 0 0 0 17 1 0 0
/proc/25337/statm: 29519 11430 187 144 0 29003 0
Current children cumulated CPU time (s) 107.85
Current children cumulated vsize (KiB) 118076

[startup+110.302 s]
/proc/loadavg: 2.07 2.01 2.00 3/74 25338
/proc/meminfo: memFree=1645744/2055920 swapFree=4192812/4192956
[pid=25337] ppid=25335 vsize=118076 CPUtime=109.44
/proc/25337/stat : 25337 (bprolog) R 25335 25337 20953 0 -1 4194304 20652 0 0 0 10738 206 0 0 25 0 1 0 24522458 120909824 11504 996147200 134512640 135105188 4294956096 18446744073709551615 134684665 0 0 4096 2 0 0 0 17 1 0 0
/proc/25337/statm: 29519 11504 187 144 0 29003 0
Current children cumulated CPU time (s) 109.44
Current children cumulated vsize (KiB) 118076

[startup+111.107 s]
/proc/loadavg: 2.07 2.01 2.00 3/74 25338
/proc/meminfo: memFree=1645552/2055920 swapFree=4192812/4192956
[pid=25337] ppid=25335 vsize=118076 CPUtime=110.24
/proc/25337/stat : 25337 (bprolog) R 25335 25337 20953 0 -1 4194304 20688 0 0 0 10818 206 0 0 25 0 1 0 24522458 120909824 11540 996147200 134512640 135105188 4294956096 18446744073709551615 134684665 0 0 4096 2 0 0 0 17 1 0 0
/proc/25337/statm: 29519 11540 187 144 0 29003 0
Current children cumulated CPU time (s) 110.24
Current children cumulated vsize (KiB) 118076

[startup+111.902 s]
/proc/loadavg: 2.07 2.01 2.00 3/74 25338
/proc/meminfo: memFree=1645552/2055920 swapFree=4192812/4192956
[pid=25337] ppid=25335 vsize=118076 CPUtime=111.03
/proc/25337/stat : 25337 (bprolog) R 25335 25337 20953 0 -1 4194304 20726 0 0 0 10897 206 0 0 25 0 1 0 24522458 120909824 11578 996147200 134512640 135105188 4294956096 18446744073709551615 134684416 0 0 4096 2 0 0 0 17 1 0 0
/proc/25337/statm: 29519 11578 187 144 0 29003 0
Current children cumulated CPU time (s) 111.03
Current children cumulated vsize (KiB) 118076

[startup+112.102 s]
/proc/loadavg: 2.07 2.01 2.00 3/74 25338
/proc/meminfo: memFree=1645360/2055920 swapFree=4192812/4192956
[pid=25337] ppid=25335 vsize=118076 CPUtime=111.23
/proc/25337/stat : 25337 (bprolog) R 25335 25337 20953 0 -1 4194304 20736 0 0 0 10917 206 0 0 25 0 1 0 24522458 120909824 11588 996147200 134512640 135105188 4294956096 18446744073709551615 134684423 0 0 4096 2 0 0 0 17 1 0 0
/proc/25337/statm: 29519 11588 187 144 0 29003 0
Current children cumulated CPU time (s) 111.23
Current children cumulated vsize (KiB) 118076

[startup+112.206 s]
/proc/loadavg: 2.07 2.01 2.00 3/74 25338
/proc/meminfo: memFree=1645360/2055920 swapFree=4192812/4192956
[pid=25337] ppid=25335 vsize=118076 CPUtime=111.33
/proc/25337/stat : 25337 (bprolog) R 25335 25337 20953 0 -1 4194304 20738 0 0 0 10927 206 0 0 25 0 1 0 24522458 120909824 11590 996147200 134512640 135105188 4294956096 18446744073709551615 134570706 0 0 4096 2 0 0 0 17 1 0 0
/proc/25337/statm: 29519 11590 187 144 0 29003 0
Current children cumulated CPU time (s) 111.33
Current children cumulated vsize (KiB) 118076

Child status: 0
Real time (s): 112.216
CPU time (s): 111.353
CPU user time (s): 109.276
CPU system time (s): 2.07668
CPU usage (%): 99.2312
Max. virtual memory (cumulated for all children) (KiB): 153236

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 109.276
system time used= 2.07668
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 20740
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= 2503

runsolver used 0.113982 second user time and 0.308953 second system time

The end

Launcher Data 

Begin job on node61 at 2009-07-12 06:56:30
IDJOB=2082074
IDBENCH=57527
IDSOLVER=770
FILE ID=node61/2082074-1247374590
PBS_JOBID= 9507029
Free space on /tmp= 66404 MiB

SOLVER NAME= bpsolver 09
BENCH NAME= CPAI08/csp/super-queens/normalized-super-queens-4.xml
COMMAND LINE= HOME/solver BENCHNAMENOEXT TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2082074-1247374590/watcher-2082074-1247374590 -o /tmp/evaluation-result-2082074-1247374590/solver-2082074-1247374590 -C 1800 -W 2000 -M 900  HOME/solver HOME/instance-2082074-1247374590 1800

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

MD5SUM BENCH= 86f27dad5b32c8754684e5fda2e6b575
RANDOM SEED=1483868468

node61.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		: 3000.229
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		: 3000.229
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:       1693464 kB
Buffers:         66120 kB
Cached:         177864 kB
SwapCached:          0 kB
Active:         214004 kB
Inactive:        93508 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1693464 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3924 kB
Writeback:           0 kB
Mapped:          74168 kB
Slab:            40304 kB
Committed_AS:   297316 kB
PageTables:       1816 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264884 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66404 MiB
End job on node61 at 2009-07-12 06:58:22