Trace number 3462666

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 3.2OPT3 0.080986 0.080558

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 benchmark0.002999
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 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 Learning Strategy: Cardinality Constraint Learning
0.00/0.00	c Time Limit set to 1800
0.00/0.00	c Instance file HOME/instance-3462666-1307181671.opb
0.00/0.00	c File size is 1316 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 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 -2147483648 0.00
0.00/0.00	c Switching off lower bounding mode.
0.00/0.06	c      105     88      331     8366   25     1003     798    199   8076 0.01
0.00/0.06	c      255     88      608    20352   33     1755     878    476   7968 0.03
0.00/0.06	c      480     88      571    22847   40     1341     966    439   7272 0.07
0.00/0.06	o 83
0.07/0.08	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.07/0.08	c      484     88      578    23014   39     1362     741    446   7223 0.07
0.07/0.08	o 3
0.07/0.08	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.07/0.08	c      558     88      717    29375   40     1739     741    585   7153 0.08
0.07/0.08	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 
0.07/0.08	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.07/0.08	c    5      559     19      721      719    29382    587   7166 0.08
0.07/0.08	c Objective: 3
0.07/0.08	s OPTIMUM FOUND
0.07/0.08	c Total time: 0.078 s

Verifier Data 

OK	3

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 977)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3462666-1307181671/watcher-3462666-1307181671 -o /tmp/evaluation-result-3462666-1307181671/solver-3462666-1307181671 -C 1800 -W 1900 -M 15500 bsolo -l2 -t1800 HOME/instance-3462666-1307181671.opb 

running on 4 cores: 0,2,4,6

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): 1900 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.01 2.02 2.00 2/524 27934
/proc/meminfo: memFree=23852880/32951124 swapFree=56930356/67111528
[pid=27934] ppid=27932 vsize=18600 CPUtime=0.01 cores=0,2,4,6
/proc/27934/stat : 27934 (bsolo) R 27932 27934 25956 0 -1 4202496 319 0 0 0 1 0 0 0 25 0 1 0 829764866 19046400 272 33554432000 134512640 137138936 4290544832 18446744073709551615 136504423 0 0 4096 16384 0 0 0 17 2 0 0 0
/proc/27934/statm: 4650 272 192 642 0 4006 0

[startup+0.0715479 s]
/proc/loadavg: 2.01 2.02 2.00 2/524 27934
/proc/meminfo: memFree=23852880/32951124 swapFree=56930356/67111528
[pid=27934] ppid=27932 vsize=19116 CPUtime=0.07 cores=0,2,4,6
/proc/27934/stat : 27934 (bsolo) R 27932 27934 25956 0 -1 4202496 433 0 0 0 7 0 0 0 25 0 1 0 829764866 19574784 386 33554432000 134512640 137138936 4290544832 18446744073709551615 136570369 0 0 4096 16384 0 0 0 17 2 0 0 0
/proc/27934/statm: 4779 386 192 642 0 4135 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 19116

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

[startup+0.0715479 s]
/proc/loadavg: 2.01 2.02 2.00 2/524 27934
/proc/meminfo: memFree=23852880/32951124 swapFree=56930356/67111528
[pid=27934] ppid=27932 vsize=19116 CPUtime=0.07 cores=0,2,4,6
/proc/27934/stat : 27934 (bsolo) R 27932 27934 25956 0 -1 4202496 433 0 0 0 7 0 0 0 25 0 1 0 829764866 19574784 386 33554432000 134512640 137138936 4290544832 18446744073709551615 136570369 0 0 4096 16384 0 0 0 17 2 0 0 0
/proc/27934/statm: 4779 386 192 642 0 4135 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 19116

Child status: 0
Real time (s): 0.080558
CPU time (s): 0.080986
CPU user time (s): 0.078987
CPU system time (s): 0.001999
CPU usage (%): 100.531
Max. virtual memory (cumulated for all children) (KiB): 19116

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.078987
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= 434
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= 2

runsolver used 0.008998 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node137 at 2011-06-04 12:01:12
IDJOB=3462666
IDBENCH=48082
IDSOLVER=1955
FILE ID=node137/3462666-1307181671
RUNJOBID= node137-1307174661-27288
PBS_JOBID= 13508854
Free space on /tmp= 73728 MiB

SOLVER NAME= bsolo 3.2
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 -l2 -tTIMEOUT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3462666-1307181671/watcher-3462666-1307181671 -o /tmp/evaluation-result-3462666-1307181671/solver-3462666-1307181671 -C 1800 -W 1900 -M 15500  bsolo -l2 -t1800 HOME/instance-3462666-1307181671.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 81bcbf479f290ea51f43d1561f9d15dc
RANDOM SEED=755535465

node137.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	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.844
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.68
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.844
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.844
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.844
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.844
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.844
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.844
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.844
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      23853036 kB
Buffers:        282180 kB
Cached:         514696 kB
SwapCached:      12312 kB
Active:        8372876 kB
Inactive:       463724 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      23853036 kB
SwapTotal:    67111528 kB
SwapFree:     56930356 kB
Dirty:            4212 kB
Writeback:           0 kB
AnonPages:     8036808 kB
Mapped:          22172 kB
Slab:           117436 kB
PageTables:      74192 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 162579024 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 73724 MiB
End job on node137 at 2011-06-04 12:01:12