Trace number 2670732

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 NameAnswerobjective functionCPU timeWall clock time
bsolo 3.2 ClOPT3 0.068988 0.068146

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=8-P0=157-P1=107-B.opb
MD5SUM81bcbf479f290ea51f43d1561f9d15dc
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 benchmark0.05999
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 130464
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 3.2 - 23/05/2010 : 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 Time Limit set to 1800
0.00/0.00	c Learning Strategy: Clause Learning
0.00/0.00	c Instance file HOME/instance-2670732-1276705819.opb
0.00/0.00	c File size is 4583 bytes.
0.00/0.00	c Highest Coefficient sum: 130464
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.
0.02/0.05	c      105     88      237     5632   23      668     798    105   8750 0.01
0.02/0.05	c      255     88      387    13693   35      973     878    255   9444 0.03
0.02/0.05	c      480     88      612    25042   40     1423     966    480   8571 0.06
0.02/0.05	o 83
0.02/0.06	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.02/0.06	c      483     88      616    25140   40     1436     741    484   8473 0.06
0.02/0.06	o 3
0.02/0.06	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.02/0.06	c      554     88      688    29093   42     1586     741    556   8393 0.07
0.02/0.06	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 
0.02/0.06	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.02/0.06	c    5      560     24      763      694    29099    562   8358 0.07
0.02/0.06	c Objective: 3
0.02/0.06	s OPTIMUM FOUND
0.02/0.06	c Total time: 0.067 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-2670732-1276705819/watcher-2670732-1276705819 -o /tmp/evaluation-result-2670732-1276705819/solver-2670732-1276705819 -C 1800 -W 2000 -M 1800 bsolo_pb10 -t1800 -l1 HOME/instance-2670732-1276705819.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 1.02 1.00 2/106 13015
/proc/meminfo: memFree=1726400/2059040 swapFree=4140132/4192956
[pid=13015] ppid=13013 vsize=18600 CPUtime=0
/proc/13015/stat : 13015 (bsolo_pb10) R 13013 13015 12490 0 -1 4202496 331 0 0 0 0 0 0 0 20 0 1 0 46185381 19046400 247 1992294400 134512640 137138936 4288761024 18446744073709551615 136570369 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/13015/statm: 4650 247 190 642 0 4006 0

[startup+0.0254491 s]
/proc/loadavg: 1.00 1.02 1.00 2/106 13015
/proc/meminfo: memFree=1726400/2059040 swapFree=4140132/4192956
[pid=13015] ppid=13013 vsize=18728 CPUtime=0.02
/proc/13015/stat : 13015 (bsolo_pb10) R 13013 13015 12490 0 -1 4202496 363 0 0 0 2 0 0 0 20 0 1 0 46185381 19177472 279 1992294400 134512640 137138936 4288761024 18446744073709551615 134575765 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/13015/statm: 4682 279 190 642 0 4038 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 18728

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

[startup+0.0254491 s]
/proc/loadavg: 1.00 1.02 1.00 2/106 13015
/proc/meminfo: memFree=1726400/2059040 swapFree=4140132/4192956
[pid=13015] ppid=13013 vsize=18728 CPUtime=0.02
/proc/13015/stat : 13015 (bsolo_pb10) R 13013 13015 12490 0 -1 4202496 363 0 0 0 2 0 0 0 20 0 1 0 46185381 19177472 279 1992294400 134512640 137138936 4288761024 18446744073709551615 134575765 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/13015/statm: 4682 279 190 642 0 4038 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 18728

Child status: 0
Real time (s): 0.068146
CPU time (s): 0.068988
CPU user time (s): 0.066989
CPU system time (s): 0.001999
CPU usage (%): 101.236
Max. virtual memory (cumulated for all children) (KiB): 18728

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.066989
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 430
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= 1
involuntary context switches= 1

runsolver used 0.002999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node007 at 2010-06-16 18:30:19
IDJOB=2670732
IDBENCH=48082
IDSOLVER=1163
FILE ID=node007/2670732-1276705819
PBS_JOBID= 11174126
Free space on /tmp= 62488 MiB

SOLVER NAME= bsolo 3.2 Cl
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=8-P0=157-P1=107-B.opb
COMMAND LINE= bsolo_pb10 -tTIMEOUT -l1 BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2670732-1276705819/watcher-2670732-1276705819 -o /tmp/evaluation-result-2670732-1276705819/solver-2670732-1276705819 -C 1800 -W 2000 -M 1800  bsolo_pb10 -t1800 -l1 HOME/instance-2670732-1276705819.opb

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

MD5SUM BENCH= 81bcbf479f290ea51f43d1561f9d15dc
RANDOM SEED=226424198

node007.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/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		: 3000.264
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.52
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		: 3000.264
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1727300 kB
Buffers:         98280 kB
Cached:         139380 kB
SwapCached:       7044 kB
Active:         113148 kB
Inactive:       138608 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1727300 kB
SwapTotal:     4192956 kB
SwapFree:      4140132 kB
Dirty:            3876 kB
Writeback:           0 kB
AnonPages:       12108 kB
Mapped:          13072 kB
Slab:            58152 kB
PageTables:       4032 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182488 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

CONVERSION COMMAND LINE= PBconversionToLinear HOME/instance-2670732-1276705819.opb

Free space on /tmp at the end= 62484 MiB
End job on node007 at 2010-06-16 18:30:19