Trace number 452909

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 3.0.17OPT2 0.332949 0.334492

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/
factor-mod-size=5-P0=29-P1=31-P2=13-P3=17-P4=29-P5=2-P6=29-B.opb
MD5SUMbab73d97554da370c1dcc7d97b4a612d
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 benchmark0.049992
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 variables90
Total number of constraints13
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 constraints13
Minimum length of a constraint5
Maximum length of a constraint35
Number of terms in the objective function 5
Biggest coefficient in the objective function 16
Number of bits for the biggest coefficient in the objective function 5
Sum of the numbers in the objective function 31
Number of bits of the sum of numbers in the objective function 5
Biggest number in a constraint 512
Number of bits of the biggest number in a constraint 10
Biggest sum of numbers in a constraint 1984
Number of bits of the biggest sum of numbers11
Number of products (including duplicates)150
Sum of products size (including duplicates)300
Number of different products150
Sum of products size300

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 3.0.17 - 27/04/2007 : 1600 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 Memory Limit set to 1800 MB
0.00/0.00	c Instance file /tmp/evaluation/452909-1177994455/instance-452909-1177994455.opb
0.00/0.00	c File size is 3162 bytes.
0.00/0.00	c Highest Coefficient sum: 1984
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: 240 Constr: 319 150/0/169 Lit: 1345 Watch. Lit: 859
0.00/0.00	c Obj. Vars: 5 (2.08333 % 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    240      319     1345    4     1149    1839      0      0 0.00
0.00/0.00	c Switching off LPR mode.
0.09/0.18	c      103    240      422     4031    9     1328    2023    103  14714 0.01
0.09/0.18	c      253    240      572     8068   14     1616    2226    253  19461 0.01
0.09/0.18	c      479    240      798    14627   18     2062    2449    479  19958 0.02
0.09/0.18	c      817    240     1136    25091   22     2756    2694    817  19926 0.04
0.09/0.18	c     1326    240     1645    41442   25     3767    2964   1326  18416 0.07
0.09/0.18	c     2089    240     2408    63850   26     5274    3261   2089  15589 0.13
0.09/0.18	o 27	0.185
0.19/0.24	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.24	c     2826    240     3146    83591   26     6752    1849   2827  15275 0.18
0.19/0.24	c     2926    240     1345    28814   21     3175    2034   1026  15082 0.19
0.19/0.24	c     3178    240     1597    36544   22     3658    2238   1278  14990 0.21
0.19/0.24	o 25	0.242
0.19/0.26	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.26	c     3644    240     2064    50611   24     4605    1849   1745  14995 0.24
0.19/0.26	c     3744    240     2164    53542   24     4788    2034   1845  15096 0.25
0.19/0.26	o 5	0.265
0.29/0.32	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.29/0.32	c     3979    240     1337    29738   22     3141    1849   1018  14902 0.27
0.29/0.32	c     4079    226     1437    32298   22     3324    2034   1118  14832 0.28
0.29/0.32	c     4329    226     1687    40963   24     3852    2238   1368  14774 0.29
0.29/0.32	o 3	0.32
0.29/0.33	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.29/0.33	c     4585    226     1944    47791   24     4355    1845   1625  14328 0.32
0.29/0.33	o 2	0.328
0.29/0.33	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.29/0.33	c     4672    211     2032    50298   24     4550    1839   1713  14243 0.33
0.29/0.33	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 x31
0.29/0.33	v x32 x33 x34 -x35 -x36 x37 -x38 -x39 -x40 x61 -x62 -x63 -x64 -x65 -x41 x42 x43 -x44 -x45 -x66 -x67 -x68 -x69 -x70 -x46 x47 -x48 -x49
0.29/0.33	v -x50 -x71 x72 -x73 -x74 -x75 -x51 x52 -x53 -x54 x55 -x76 -x77 -x78 -x79 -x80 -x56 x57 -x58 -x59 -x60 x81 -x82 x83 -x84 -x85 -x86
0.29/0.33	v -x87 -x88 -x89 -x90
0.29/0.33	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.29/0.33	c   16     4672    344     6651     2032    50298   1713  14243 0.33
0.29/0.33	c Objective: 2
0.29/0.33	s OPTIMUM FOUND
0.29/0.33	c Total time: 0.328 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/node61/watcher-452909-1177994455 -o ROOT/results/node61/solver-452909-1177994455 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/452909-1177994455/instance-452909-1177994455.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 0.93 3/64 8702
/proc/meminfo: memFree=1827264/2055920 swapFree=4184156/4192956
[pid=8702] ppid=8700 vsize=19552 CPUtime=0
/proc/8702/stat : 8702 (bsolo3.0.17) R 8700 8702 7265 0 -1 4194304 374 0 0 0 0 0 0 0 18 0 1 0 211409123 20021248 344 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 10819195 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8702/statm: 2935 345 290 324 0 2004 0

[startup+0.0306549 s]
/proc/loadavg: 0.92 0.97 0.93 3/64 8702
/proc/meminfo: memFree=1827264/2055920 swapFree=4184156/4192956
[pid=8702] ppid=8700 vsize=4312 CPUtime=0.02
/proc/8702/stat : 8702 (bsolo3.0.17) R 8700 8702 7265 0 -1 4194304 479 0 0 0 2 0 0 0 18 0 1 0 211409123 4415488 448 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 10819195 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8702/statm: 1078 448 310 324 0 148 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 4312

[startup+0.101662 s]
/proc/loadavg: 0.92 0.97 0.93 3/64 8702
/proc/meminfo: memFree=1827264/2055920 swapFree=4184156/4192956
[pid=8702] ppid=8700 vsize=4832 CPUtime=0.09
/proc/8702/stat : 8702 (bsolo3.0.17) R 8700 8702 7265 0 -1 4194304 627 0 0 0 9 0 0 0 18 0 1 0 211409123 4947968 596 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 10819195 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8702/statm: 1208 596 310 324 0 278 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4832

[startup+0.30168 s]
/proc/loadavg: 0.92 0.97 0.93 3/64 8702
/proc/meminfo: memFree=1827264/2055920 swapFree=4184156/4192956
[pid=8702] ppid=8700 vsize=5476 CPUtime=0.29
/proc/8702/stat : 8702 (bsolo3.0.17) R 8700 8702 7265 0 -1 4194304 764 0 0 0 29 0 0 0 19 0 1 0 211409123 5607424 733 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134550863 0 0 4096 16384 0 0 0 17 1 0 0
/proc/8702/statm: 1369 733 311 324 0 439 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5476

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

Child status: 0
Real time (s): 0.334492
CPU time (s): 0.332949
CPU user time (s): 0.32795
CPU system time (s): 0.004999
CPU usage (%): 99.5387
Max. virtual memory (cumulated for all children) (KiB): 5476

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.32795
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 768
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 0.003999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node61 on Tue May  1 04:40:55 UTC 2007

IDJOB= 452909
IDBENCH= 47976
IDSOLVER= 199
FILE ID= node61/452909-1177994455

PBS_JOBID= 4728256

Free space on /tmp= 66558 MiB

SOLVER NAME= bsolo 3.0.17
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=5-P0=29-P1=31-P2=13-P3=17-P4=29-P5=2-P6=29-B.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/452909-1177994455/instance-452909-1177994455.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node61/watcher-452909-1177994455 -o ROOT/results/node61/solver-452909-1177994455 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/452909-1177994455/instance-452909-1177994455.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  bab73d97554da370c1dcc7d97b4a612d

RANDOM SEED= 731487996

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node61.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		: 3000.240
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		: 3000.240
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:       1827672 kB
Buffers:         24448 kB
Cached:         140472 kB
SwapCached:       2904 kB
Active:          90184 kB
Inactive:        85172 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1827672 kB
SwapTotal:     4192956 kB
SwapFree:      4184156 kB
Dirty:            6588 kB
Writeback:           0 kB
Mapped:          16408 kB
Slab:            39024 kB
Committed_AS:  1178804 kB
PageTables:       1392 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 node61 on Tue May  1 04:40:55 UTC 2007