Trace number 431094

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, and are wall clock time (not CPU 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 NameAnswerObjective functionCPU timeWall clock time
bsolo 3.0.16OPT2 0.84687 0.848637

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=6-P0=2-P1=31-P2=13-P3=31-P4=31-B.opb
MD5SUM626c966be089469ef760f193c8b19154
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark2
Best CPU time to get the best result obtained on this benchmark0.050991
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2
Optimality of the best value was proved YES
Number of variables72
Total number of constraints9
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints9
Minimum length of a constraint6
Maximum length of a constraint48
Number of terms in the objective function 6
Biggest coefficient in the objective function 32
Number of bits for the biggest coefficient in the objective function 6
Sum of the numbers in the objective function 63
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 2048
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 8064
Number of bits of the biggest sum of numbers13
Number of products (including duplicates)144
Sum of products size (including duplicates)288
Number of different products144
Sum of products size288

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data (download as text)

0.00/0.00	c bsolo beta version 3.0.16 - 04/04/2007 : 1458 GMT
0.00/0.00	c Developed by Vasco Manquinho IST/UTL - INESC-ID
0.00/0.00	c type "bsolo -h" for help
0.00/0.00	c Time Limit set via environment variable PBTIMEOUT to 1800
0.00/0.00	c Time Limit set to 1800
0.00/0.00	c Memory Limit set to 1800 MB
0.00/0.00	c Instance file /tmp/evaluation/431094-1178002679/instance-431094-1178002679.opb
0.00/0.00	c File size is 2853 bytes.
0.00/0.00	c Highest Coefficient sum: 8064
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0.001 s
0.00/0.00	c Var: 216 Constr: 301 144/0/157 Lit: 1266 Watch. Lit: 794
0.00/0.00	c Obj. Vars: 6 (2.77778 % of total variables)
0.00/0.00	c Pre-processing Time: 0.004 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0    216      301     1266    4     1084    1715      0      0 0.00
0.00/0.00	c Switching off LPR mode.
0.49/0.50	c      100    216      401     5234   13     1262    1887    100  11111 0.01
0.49/0.50	c      250    216      551    11575   21     1527    2076    250  14705 0.02
0.49/0.50	c      476    216      777    22980   29     1997    2284    476  13600 0.04
0.49/0.50	c      814    216     1115    37438   33     2703    2513    814  14034 0.06
0.49/0.50	c     1323    216     1624    58735   36     3692    2765   1323  13781 0.10
0.49/0.50	c     2086    216     2387    84380   35     5218    3042   2086  13202 0.16
0.49/0.50	c     3233    216     1842    58709   31     4145    3347   1541  11629 0.28
0.49/0.50	c     4955    216     3564   122471   34     7575    3682   3263  10453 0.47
0.49/0.50	o 33	0.502
0.59/0.64	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.59/0.64	c     5152    216     3762   129945   34     7959    1727   3461  10262 0.50
0.59/0.64	c     5252    216     1266    36353   28     2990    1900    965  10100 0.52
0.59/0.64	c     5503    216     1517    46471   30     3497    2091   1216  10285 0.54
0.59/0.64	c     5979    216     1993    64587   32     4438    2301   1692   9948 0.60
0.59/0.64	o 3	0.642
0.79/0.84	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.79/0.84	c     6442    216     2457    81782   33     5370    1727   2156  10034 0.64
0.79/0.84	c     6543    216     1267    36684   28     2976    1900    966  10050 0.65
0.79/0.84	c     6794    216     1518    47018   30     3456    2091   1217  10005 0.68
0.79/0.84	c     7269    208     1993    63900   32     4412    2301   1692   9903 0.73
0.79/0.84	c     8083    175     1544    45678   29     3534    2532   1243   9611 0.84
0.79/0.84	o 2	0.842
0.79/0.84	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.79/0.84	c     8087    175     1549    45803   29     3562    1715   1248   9604 0.84
0.79/0.84	v -x1 x2 -x3 -x4 -x5 -x6 x7 -x8 -x9 -x10 -x11 x12 x13 -x14 -x15 -x16 -x17 x18 x19 -x20 -x21 -x22 -x23 x24 x25 x26 -x27 -x28 x29 -x30
0.79/0.84	v -x31 x32 -x33 -x34 -x35 -x36 x49 -x50 -x51 -x52 -x53 -x54 -x37 x38 -x39 -x40 -x41 -x42 x55 -x56 -x57 -x58 -x59 -x60 -x43 x44 -x45
0.79/0.84	v -x46 -x47 -x48 x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 -x72
0.79/0.84	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.79/0.84	c   18     8087    414    10569     1549    45803   1248   9604 0.84
0.79/0.84	c Objective: 2
0.79/0.84	s OPTIMUM FOUND
0.79/0.84	c Total time: 0.842 s

Verifier Data (download as text)

OK	2

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node3/watcher-431094-1178002679 -o ROOT/results/node3/solver-431094-1178002679 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/431094-1178002679/instance-431094-1178002679.opb 

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): 3600 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 0.97 0.98 3/77 19172
/proc/meminfo: memFree=1843928/2055920 swapFree=4139036/4192956
[pid=19172] ppid=19170 vsize=3928 CPUtime=0
/proc/19172/stat : 19172 (bsolo3.0.16) R 19170 19172 17089 0 -1 4194304 379 0 0 0 0 0 0 0 18 0 1 0 276305677 4022272 348 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/19172/statm: 982 349 292 324 0 50 0

[startup+0.0105399 s]
/proc/loadavg: 0.92 0.97 0.98 3/77 19172
/proc/meminfo: memFree=1843928/2055920 swapFree=4139036/4192956
[pid=19172] ppid=19170 vsize=4056 CPUtime=0
/proc/19172/stat : 19172 (bsolo3.0.16) R 19170 19172 17089 0 -1 4194304 428 0 0 0 0 0 0 0 18 0 1 0 276305677 4153344 396 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/19172/statm: 1014 396 312 324 0 83 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 4056

[startup+0.101556 s]
/proc/loadavg: 0.92 0.97 0.98 3/77 19172
/proc/meminfo: memFree=1843928/2055920 swapFree=4139036/4192956
[pid=19172] ppid=19170 vsize=4964 CPUtime=0.09
/proc/19172/stat : 19172 (bsolo3.0.16) R 19170 19172 17089 0 -1 4194304 640 0 0 0 9 0 0 0 18 0 1 0 276305677 5083136 608 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 11359867 0 0 4096 16384 0 0 0 17 1 0 0
/proc/19172/statm: 1241 608 312 324 0 310 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4964

[startup+0.301588 s]
/proc/loadavg: 0.92 0.97 0.98 3/77 19172
/proc/meminfo: memFree=1843928/2055920 swapFree=4139036/4192956
[pid=19172] ppid=19170 vsize=6012 CPUtime=0.29
/proc/19172/stat : 19172 (bsolo3.0.16) R 19170 19172 17089 0 -1 4194304 915 0 0 0 29 0 0 0 19 0 1 0 276305677 6156288 883 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/19172/statm: 1503 883 312 324 0 572 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6012

[startup+0.701654 s]
/proc/loadavg: 0.92 0.97 0.98 3/77 19172
/proc/meminfo: memFree=1843928/2055920 swapFree=4139036/4192956
[pid=19172] ppid=19170 vsize=6132 CPUtime=0.69
/proc/19172/stat : 19172 (bsolo3.0.16) R 19170 19172 17089 0 -1 4194304 931 0 0 0 69 0 0 0 22 0 1 0 276305677 6279168 899 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/19172/statm: 1533 899 313 324 0 602 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6132

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

[startup+0.80167 s]
/proc/loadavg: 0.92 0.97 0.98 3/77 19172
/proc/meminfo: memFree=1843928/2055920 swapFree=4139036/4192956
[pid=19172] ppid=19170 vsize=6132 CPUtime=0.79
/proc/19172/stat : 19172 (bsolo3.0.16) R 19170 19172 17089 0 -1 4194304 931 0 0 0 79 0 0 0 23 0 1 0 276305677 6279168 899 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/19172/statm: 1533 899 313 324 0 602 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 6132

Child status: 0
Real time (s): 0.848637
CPU time (s): 0.84687
CPU user time (s): 0.835872
CPU system time (s): 0.010998
CPU usage (%): 99.7918
Max. virtual memory (cumulated for all children) (KiB): 6132

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.835872
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= 932
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= 12
involuntary context switches= 0

runsolver used 0.001999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node3 on Tue May  1 06:57:59 UTC 2007

IDJOB= 431094
IDBENCH= 48027
IDSOLVER= 163
FILE ID= node3/431094-1178002679

PBS_JOBID= 4728245

Free space on /tmp= 66558 MiB

SOLVER NAME= bsolo 3.0.16
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=6-P0=2-P1=31-P2=13-P3=31-P4=31-B.opb
COMMAND LINE= bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/431094-1178002679/instance-431094-1178002679.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-431094-1178002679 -o ROOT/results/node3/solver-431094-1178002679 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/431094-1178002679/instance-431094-1178002679.opb            

META MD5SUM SOLVER= b11bf0769a124f73ad50b0fdfcd50482
MD5SUM BENCH=  626c966be089469ef760f193c8b19154

RANDOM SEED= 93743298

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node3.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.270
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		: 3000.270
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:       1844336 kB
Buffers:         32356 kB
Cached:         100368 kB
SwapCached:      16672 kB
Active:          86900 kB
Inactive:        69440 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1844336 kB
SwapTotal:     4192956 kB
SwapFree:      4139036 kB
Dirty:            6672 kB
Writeback:           0 kB
Mapped:          30396 kB
Slab:            40732 kB
Committed_AS:  7274232 kB
PageTables:       1780 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= 66558 MiB

End job on node3 on Tue May  1 06:58:00 UTC 2007