Trace number 2670438

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 0.308952 0.309622

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
roussel/factor-mod-B/factor-mod-size=6-P0=41-P1=53-P2=59-B.opb
MD5SUM90616edfb9551f327ceab21eaa4edb03
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 benchmark0.139978
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 variables36
Total number of constraints5
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 constraints5
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)72
Sum of products size (including duplicates)144
Number of different products72
Sum of products size144

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-2670438-1276702221.opb
0.00/0.00	c File size is 5226 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 s
0.00/0.00	c Var: 108 Constr: 151 72/0/79 Lit: 630 Watch. Lit: 398
0.00/0.00	c Obj. Vars: 6 (5.55556 % 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    108      151      630    4      540     851      0      0 0.00
0.00/0.00	c Switching off lower bounding mode.
0.29/0.30	c      100    108      251     3841   15      731     937    100  12500 0.01
0.29/0.30	c      252    108      403     8756   21     1032    1031    252  14823 0.02
0.29/0.30	c      480    108      631    16399   25     1484    1135    480  14545 0.03
0.29/0.30	c      818    108      969    27122   27     2168    1249    818  13864 0.06
0.29/0.30	c     1327    108      826    21612   26     1882    1374    675  11954 0.11
0.29/0.30	c     2090    107      865    27528   31     1940    1512    714  10773 0.19
0.29/0.30	o 5
0.29/0.30	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.29/0.30	c     2893    107      909    27178   29     2031     863    758   9579 0.30
0.29/0.30	o 3
0.29/0.30	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.29/0.30	c     2946     91      963    28769   29     2153     859    812   9596 0.31
0.29/0.30	v x1 x2 -x3 -x4 -x5 -x6 x7 x8 -x9 x10 -x11 x12 x13 x14 x15 x16 -x17 -x18 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 x19 -x20 -x21 -x22 -x23 -x24 -x25 x26 -x27 -x28 -x29 -x30 x73 -x74 -x75 -x76 -x77 -x78 x79 -x80 -x81 -x82 -x83 -x84 x85 -x86 -x87 -x88 -x89 -x90 x91 -x92 -x93 -x94 -x95 -x96 -x97 -x98 -x99 -x100 -x101 -x102 -x103 -x104 -x105 -x106 -x107 -x108 -x31 -x32 -x33 -x34 -x35 -x36 
0.29/0.30	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.29/0.30	c    8     2948     48     3264      965    28792    814   9602 0.31
0.29/0.30	c Objective: 3
0.29/0.30	s OPTIMUM FOUND
0.29/0.30	c Total time: 0.307 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-2670438-1276702221/watcher-2670438-1276702221 -o /tmp/evaluation-result-2670438-1276702221/solver-2670438-1276702221 -C 1800 -W 2000 -M 1800 bsolo_pb10 -t1800 -l1 HOME/instance-2670438-1276702221.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: 1.06 1.03 0.95 2/105 17402
/proc/meminfo: memFree=1678172/2059040 swapFree=4192956/4192956
[pid=17402] ppid=17400 vsize=10792 CPUtime=0
/proc/17402/stat : 17402 (bsolo_pb10) R 17400 17402 17025 0 -1 4202496 332 0 0 0 0 0 0 0 25 0 1 0 11515689 11051008 248 1992294400 134512640 137138936 4291231264 18446744073709551615 136570369 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/17402/statm: 2698 248 190 642 0 2054 0

[startup+0.0297109 s]
/proc/loadavg: 1.06 1.03 0.95 2/105 17402
/proc/meminfo: memFree=1678172/2059040 swapFree=4192956/4192956
[pid=17402] ppid=17400 vsize=10920 CPUtime=0.02
/proc/17402/stat : 17402 (bsolo_pb10) R 17400 17402 17025 0 -1 4202496 376 0 0 0 2 0 0 0 25 0 1 0 11515689 11182080 292 1992294400 134512640 137138936 4291231264 18446744073709551615 134542375 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/17402/statm: 2730 292 190 642 0 2086 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 10920

[startup+0.100719 s]
/proc/loadavg: 1.06 1.03 0.95 2/105 17402
/proc/meminfo: memFree=1678172/2059040 swapFree=4192956/4192956
[pid=17402] ppid=17400 vsize=11308 CPUtime=0.09
/proc/17402/stat : 17402 (bsolo_pb10) R 17400 17402 17025 0 -1 4202496 479 0 0 0 9 0 0 0 25 0 1 0 11515689 11579392 395 1992294400 134512640 137138936 4291231264 18446744073709551615 134600080 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/17402/statm: 2827 395 190 642 0 2183 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11308

[startup+0.300741 s]
/proc/loadavg: 1.06 1.03 0.95 2/105 17402
/proc/meminfo: memFree=1678172/2059040 swapFree=4192956/4192956
[pid=17402] ppid=17400 vsize=11564 CPUtime=0.29
/proc/17402/stat : 17402 (bsolo_pb10) R 17400 17402 17025 0 -1 4202496 541 0 0 0 29 0 0 0 25 0 1 0 11515689 11841536 457 1992294400 134512640 137138936 4291231264 18446744073709551615 134572998 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/17402/statm: 2891 457 190 642 0 2247 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11564

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

Child status: 0
Real time (s): 0.309622
CPU time (s): 0.308952
CPU user time (s): 0.304953
CPU system time (s): 0.003999
CPU usage (%): 99.7836
Max. virtual memory (cumulated for all children) (KiB): 11564

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.304953
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 547
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= 6

runsolver used 0.002999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node088 at 2010-06-16 17:30:21
IDJOB=2670438
IDBENCH=47935
IDSOLVER=1163
FILE ID=node088/2670438-1276702221
PBS_JOBID= 11174078
Free space on /tmp= 62564 MiB

SOLVER NAME= bsolo 3.2 Cl
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=6-P0=41-P1=53-P2=59-B.opb
COMMAND LINE= bsolo_pb10 -tTIMEOUT -l1 BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2670438-1276702221/watcher-2670438-1276702221 -o /tmp/evaluation-result-2670438-1276702221/solver-2670438-1276702221 -C 1800 -W 2000 -M 1800  bsolo_pb10 -t1800 -l1 HOME/instance-2670438-1276702221.opb

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

MD5SUM BENCH= 90616edfb9551f327ceab21eaa4edb03
RANDOM SEED=137856446

node088.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		: 3000.217
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	: 6000.43
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		: 3000.217
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	: 5999.41
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1678700 kB
Buffers:         90400 kB
Cached:         150024 kB
SwapCached:          0 kB
Active:          99932 kB
Inactive:       200412 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1678700 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            4212 kB
Writeback:           0 kB
AnonPages:       59964 kB
Mapped:          15612 kB
Slab:            58324 kB
PageTables:       4000 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182260 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-2670438-1276702221.opb

Free space on /tmp at the end= 62560 MiB
End job on node088 at 2010-06-16 17:30:22