Trace number 1879505

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 NameAnswerobjCPU timeWall clock time
bsolo 3.1 pbOPT3 0.58891 0.589393

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=8-P0=5-P1=173-B.opb
MD5SUM609fd3fd526fa8a31f1afd652f2737ea
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark3
Best CPU time to get the best result obtained on this benchmark0.002998
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3
Optimality of the best value was proved YES
Number of variables24
Total number of constraints3
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 constraints3
Minimum length of a constraint8
Maximum length of a constraint72
Number of terms in the objective function 8
Biggest coefficient in the objective function 128
Number of bits for the biggest coefficient in the objective function 8
Sum of the numbers in the objective function 255
Number of bits of the sum of numbers in the objective function 8
Biggest number in a constraint 32768
Number of bits of the biggest number in a constraint 16
Biggest sum of numbers in a constraint 130402
Number of bits of the biggest sum of numbers17
Number of products (including duplicates)64
Sum of products size (including duplicates)128
Number of different products64
Sum of products size128

Quality of the solution as a function of time


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

Solver Data 

0.00/0.00	c bsolo beta version 3.1 - 13/04/2009 : 1630 GMT
0.00/0.00	c Developed by Vasco Manquinho and José Santos 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 Learning Strategy: Generic Pseudo-Boolean Learning
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 HOME/instance-1879505-1245244471.opb
0.00/0.00	c File size is 4582 bytes.
0.00/0.00	c Highest Coefficient sum: 130402
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0 s
0.00/0.00	c Var: 88 Constr: 132 64/0/68 Lit: 544 Watch. Lit: 340
0.00/0.00	c Obj. Vars: 8 (9.09091 % of total variables)
0.00/0.00	c Pre-processing Time: 0.001 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0     88      132      544    4      468     725      0      0 0.00
0.00/0.00	c Switching off lower bounding mode.
0.49/0.52	c      101     88      331    11548   34     3264     798    199   3884 0.03
0.49/0.52	c      251     88      618    27702   44    10178     878    486   1767 0.14
0.49/0.52	c      476     88      571    24346   42     4884     966    439    975 0.49
0.49/0.52	o 173
0.49/0.53	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.49/0.53	c      517     88      653    28768   44     6242     741    521    984 0.53
0.49/0.53	o 87
0.49/0.55	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.49/0.55	c      524     88      665    29365   44     6652     741    533    975 0.54
0.49/0.55	o 21
0.49/0.56	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.49/0.56	c      534     88      686    30544   44     7100     741    554    969 0.55
0.49/0.56	o 19
0.49/0.57	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.49/0.57	c      550     88      717    32329   45     7723     741    585    970 0.57
0.49/0.57	o 5
0.49/0.58	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.49/0.58	c      555     88      727    32519   44     7824     741    595    960 0.58
0.49/0.58	o 3
0.49/0.58	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.49/0.58	c      562     58      742    33023   44     7549     735    610    960 0.58
0.49/0.58	v x1 x2 -x3 -x4 -x5 -x6 -x7 -x8 x9 x10 -x11 x12 -x13 -x14 x15 x16 x25 x26 -x27 -x28 -x29 -x30 -x31 -x32 x33 x34 -x35 -x36 -x37 -x38 -x39 -x40 -x41 -x42 -x43 -x44 -x45 -x46 -x47 -x48 x49 x50 -x51 -x52 -x53 -x54 -x55 -x56 -x57 -x58 -x59 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 -x72 x73 x74 -x75 -x76 -x77 -x78 -x79 -x80 x81 x82 -x83 -x84 -x85 -x86 -x87 -x88 -x17 x18 -x19 -x20 -x21 -x22 -x23 -x24 
0.49/0.58	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.49/0.58	c    9      563     13      799      744    33032    612    959 0.59
0.49/0.58	c Objective: 3
0.49/0.58	s OPTIMUM FOUND
0.49/0.58	c Total time: 0.587 s

Verifier Data 

OK	3

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1879505-1245244471/watcher-1879505-1245244471 -o /tmp/evaluation-result-1879505-1245244471/solver-1879505-1245244471 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1879505-1245244471.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): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 0.94 3/64 8960
/proc/meminfo: memFree=1840504/2055920 swapFree=4182004/4192956
[pid=8960] ppid=8958 vsize=18520 CPUtime=0
/proc/8960/stat : 8960 (bsolo) R 8958 8960 8652 0 -1 4194304 268 0 0 0 0 0 0 0 18 0 1 0 192048062 18964480 250 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 0 0 0
/proc/8960/statm: 4630 250 197 640 0 3986 0

[startup+0.023649 s]
/proc/loadavg: 1.00 1.00 0.94 3/64 8960
/proc/meminfo: memFree=1840504/2055920 swapFree=4182004/4192956
[pid=8960] ppid=8958 vsize=18648 CPUtime=0.02
/proc/8960/stat : 8960 (bsolo) R 8958 8960 8652 0 -1 4194304 307 0 0 0 2 0 0 0 18 0 1 0 192048062 19095552 289 1992294400 134512640 137136520 4294956256 18446744073709551615 136502019 0 0 4096 16384 0 0 0 17 0 0 0
/proc/8960/statm: 4662 289 197 640 0 4018 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 18648

[startup+0.101655 s]
/proc/loadavg: 1.00 1.00 0.94 3/64 8960
/proc/meminfo: memFree=1840504/2055920 swapFree=4182004/4192956
[pid=8960] ppid=8958 vsize=19044 CPUtime=0.09
/proc/8960/stat : 8960 (bsolo) R 8958 8960 8652 0 -1 4194304 401 0 0 0 9 0 0 0 18 0 1 0 192048062 19501056 383 1992294400 134512640 137136520 4294956256 18446744073709551615 134544160 0 0 4096 16384 0 0 0 17 0 0 0
/proc/8960/statm: 4761 383 197 640 0 4117 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 19044

[startup+0.301674 s]
/proc/loadavg: 1.00 1.00 0.94 3/64 8960
/proc/meminfo: memFree=1840504/2055920 swapFree=4182004/4192956
[pid=8960] ppid=8958 vsize=19436 CPUtime=0.29
/proc/8960/stat : 8960 (bsolo) R 8958 8960 8652 0 -1 4194304 514 0 0 0 29 0 0 0 19 0 1 0 192048062 19902464 496 1992294400 134512640 137136520 4294956256 18446744073709551615 134544809 0 0 4096 16384 0 0 0 17 0 0 0
/proc/8960/statm: 4859 496 198 640 0 4215 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 19436

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

[startup+0.501692 s]
/proc/loadavg: 1.00 1.00 0.94 3/64 8960
/proc/meminfo: memFree=1840504/2055920 swapFree=4182004/4192956
[pid=8960] ppid=8958 vsize=19700 CPUtime=0.49
/proc/8960/stat : 8960 (bsolo) R 8958 8960 8652 0 -1 4194304 585 0 0 0 49 0 0 0 21 0 1 0 192048062 20172800 567 1992294400 134512640 137136520 4294956256 18446744073709551615 136518985 0 0 4096 16384 0 0 0 17 0 0 0
/proc/8960/statm: 4925 567 198 640 0 4281 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 19700

Child status: 0
Real time (s): 0.589393
CPU time (s): 0.58891
CPU user time (s): 0.583911
CPU system time (s): 0.004999
CPU usage (%): 99.9181
Max. virtual memory (cumulated for all children) (KiB): 19700

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.583911
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= 587
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= 2
involuntary context switches= 4

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node14 at 2009-06-17 15:14:31
IDJOB=1879505
IDBENCH=48055
IDSOLVER=701
FILE ID=node14/1879505-1245244471
PBS_JOBID= 9372323
Free space on /tmp= 66360 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=8-P0=5-P1=173-B.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1879505-1245244471/watcher-1879505-1245244471 -o /tmp/evaluation-result-1879505-1245244471/solver-1879505-1245244471 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1879505-1245244471.opb

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

MD5SUM BENCH= 609fd3fd526fa8a31f1afd652f2737ea
RANDOM SEED=1693735573

node14.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		: 3000.234
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		: 3000.234
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:       1841112 kB
Buffers:         30860 kB
Cached:         132784 kB
SwapCached:       5132 kB
Active:          45732 kB
Inactive:       126136 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1841112 kB
SwapTotal:     4192956 kB
SwapFree:      4182004 kB
Dirty:            3940 kB
Writeback:           0 kB
Mapped:          14408 kB
Slab:            28832 kB
Committed_AS:   203708 kB
PageTables:       1452 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

CONVERSION COMMAND LINE= PBconversionToLinear HOME/instance-1879505-1245244471.opb

Free space on /tmp at the end= 66356 MiB
End job on node14 at 2009-06-17 15:14:32