Trace number 1876514

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 3.1Wrong UNSAT 3.98239 3.98283

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=8-P0=157-P1=47-B.opb
MD5SUM65e30a452de5692ad7673801cf6b385e
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 benchmark0.002999
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 130516
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

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: Cardinality Constraint 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-1876514-1245186798.opb
0.00/0.00	c File size is 4583 bytes.
0.00/0.00	c Highest Coefficient sum: 130516
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.
3.89/3.98	c      100     88      295     7028   23      891     798    163   6666 0.01
3.89/3.98	c      252     88      535    17065   31     1535     878    403   6461 0.04
3.89/3.98	c      479     88      827    31537   38     2223     966    695   5841 0.08
3.89/3.98	c      817     79      694    32928   47     1598    1063    562   5483 0.15
3.89/3.98	c     1326     79      738    32252   43     1674    1170    606   5479 0.24
3.89/3.98	c     2090     79     1007    44925   44     2267    1288    875   5372 0.39
3.89/3.98	c     3236     79     1044    45301   43     2324    1417    912   5313 0.61
3.89/3.98	c     4958     79      942    41230   43     2078    1559    810   5069 0.98
3.89/3.98	c     7543     79     1327    59808   45     2919    1715   1195   5106 1.48
3.89/3.98	c    11422     79     1233    54891   44     2746    1887   1101   5049 2.26
3.89/3.98	c    17245     68     1598    63172   39     3460    2076   1466   4771 3.61
3.89/3.98	c Backtracks by Clause: 5038
3.89/3.98	c Backtracks by PB constraint: 2
3.89/3.98	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
3.89/3.98	c   11    18894     47    19128     1409    44552   1277   4746 3.98
3.89/3.98	s UNSATISFIABLE
3.89/3.98	c Total time: 3.981 s

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1876514-1245186798/watcher-1876514-1245186798 -o /tmp/evaluation-result-1876514-1245186798/solver-1876514-1245186798 -C 1800 -W 2000 -M 1800 bsolo -l2 -t1800 -m1800 HOME/instance-1876514-1245186798.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: 0.94 0.97 0.99 3/64 31703
/proc/meminfo: memFree=1838480/2055920 swapFree=4191900/4192956
[pid=31703] ppid=31701 vsize=18516 CPUtime=0
/proc/31703/stat : 31703 (bsolo) R 31701 31703 31261 0 -1 4194304 264 0 0 0 0 0 0 0 18 0 1 0 186280252 18960384 246 1992294400 134512640 137136520 4294956256 18446744073709551615 136295553 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31703/statm: 4629 246 197 640 0 3985 0

[startup+0.065891 s]
/proc/loadavg: 0.94 0.97 0.99 3/64 31703
/proc/meminfo: memFree=1838480/2055920 swapFree=4191900/4192956
[pid=31703] ppid=31701 vsize=18900 CPUtime=0.05
/proc/31703/stat : 31703 (bsolo) R 31701 31703 31261 0 -1 4194304 359 0 0 0 5 0 0 0 18 0 1 0 186280252 19353600 341 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31703/statm: 4725 342 198 640 0 4081 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 18900

[startup+0.10188 s]
/proc/loadavg: 0.94 0.97 0.99 3/64 31703
/proc/meminfo: memFree=1838480/2055920 swapFree=4191900/4192956
[pid=31703] ppid=31701 vsize=19028 CPUtime=0.09
/proc/31703/stat : 31703 (bsolo) R 31701 31703 31261 0 -1 4194304 407 0 0 0 9 0 0 0 18 0 1 0 186280252 19484672 389 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31703/statm: 4757 389 198 640 0 4113 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 19028

[startup+0.301822 s]
/proc/loadavg: 0.94 0.97 0.99 3/64 31703
/proc/meminfo: memFree=1838480/2055920 swapFree=4191900/4192956
[pid=31703] ppid=31701 vsize=19288 CPUtime=0.29
/proc/31703/stat : 31703 (bsolo) R 31701 31703 31261 0 -1 4194304 483 0 0 0 29 0 0 0 19 0 1 0 186280252 19750912 465 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31703/statm: 4822 465 198 640 0 4178 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 19288

[startup+0.701708 s]
/proc/loadavg: 0.94 0.97 0.99 3/64 31703
/proc/meminfo: memFree=1838480/2055920 swapFree=4191900/4192956
[pid=31703] ppid=31701 vsize=19544 CPUtime=0.69
/proc/31703/stat : 31703 (bsolo) R 31701 31703 31261 0 -1 4194304 528 0 0 0 69 0 0 0 22 0 1 0 186280252 20013056 510 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31703/statm: 4886 510 198 640 0 4242 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 19544

[startup+1.50148 s]
/proc/loadavg: 0.94 0.97 0.99 2/65 31704
/proc/meminfo: memFree=1837192/2055920 swapFree=4191900/4192956
[pid=31703] ppid=31701 vsize=19672 CPUtime=1.49
/proc/31703/stat : 31703 (bsolo) R 31701 31703 31261 0 -1 4194304 577 0 0 0 148 1 0 0 25 0 1 0 186280252 20144128 559 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31703/statm: 4918 559 198 640 0 4274 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 19672

[startup+3.10102 s]
/proc/loadavg: 0.95 0.97 0.99 2/65 31704
/proc/meminfo: memFree=1836744/2055920 swapFree=4191900/4192956
[pid=31703] ppid=31701 vsize=19932 CPUtime=3.09
/proc/31703/stat : 31703 (bsolo) R 31701 31703 31261 0 -1 4194304 621 0 0 0 308 1 0 0 25 0 1 0 186280252 20410368 603 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31703/statm: 4983 603 198 640 0 4339 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 19932

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

[startup+3.5019 s]
/proc/loadavg: 0.95 0.97 0.99 2/65 31704
/proc/meminfo: memFree=1836680/2055920 swapFree=4191900/4192956
[pid=31703] ppid=31701 vsize=19932 CPUtime=3.49
/proc/31703/stat : 31703 (bsolo) R 31701 31703 31261 0 -1 4194304 621 0 0 0 348 1 0 0 25 0 1 0 186280252 20410368 603 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31703/statm: 4983 603 198 640 0 4339 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 19932

[startup+3.90179 s]
/proc/loadavg: 0.95 0.97 0.99 2/65 31704
/proc/meminfo: memFree=1836680/2055920 swapFree=4191900/4192956
[pid=31703] ppid=31701 vsize=19932 CPUtime=3.89
/proc/31703/stat : 31703 (bsolo) R 31701 31703 31261 0 -1 4194304 621 0 0 0 388 1 0 0 25 0 1 0 186280252 20410368 603 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31703/statm: 4983 603 198 640 0 4339 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 19932

Child status: 0
Real time (s): 3.98283
CPU time (s): 3.98239
CPU user time (s): 3.9654
CPU system time (s): 0.016997
CPU usage (%): 99.9891
Max. virtual memory (cumulated for all children) (KiB): 19932

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.9654
system time used= 0.016997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 622
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= 5

runsolver used 0.004999 second user time and 0.015997 second system time

The end

Launcher Data 

Begin job on node16 at 2009-06-16 23:13:18
IDJOB=1876514
IDBENCH=47924
IDSOLVER=699
FILE ID=node16/1876514-1245186798
PBS_JOBID= 9368289
Free space on /tmp= 66280 MiB

SOLVER NAME= bsolo 3.1
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=8-P0=157-P1=47-B.opb
COMMAND LINE= bsolo -l2 -tTIMEOUT -mMEMLIMIT BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1876514-1245186798/watcher-1876514-1245186798 -o /tmp/evaluation-result-1876514-1245186798/solver-1876514-1245186798 -C 1800 -W 2000 -M 1800  bsolo -l2 -t1800 -m1800 HOME/instance-1876514-1245186798.opb

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

MD5SUM BENCH= 65e30a452de5692ad7673801cf6b385e
RANDOM SEED=1987174341

node16.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		: 3000.214
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		: 3000.214
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:       1838960 kB
Buffers:         39184 kB
Cached:         101384 kB
SwapCached:        260 kB
Active:          50992 kB
Inactive:       102264 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1838960 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            4180 kB
Writeback:           0 kB
Mapped:          21188 kB
Slab:            49784 kB
Committed_AS:   163208 kB
PageTables:       1440 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-1876514-1245186798.opb

Free space on /tmp at the end= 66276 MiB
End job on node16 at 2009-06-16 23:13:22