Trace number 365386

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, and are wall clock time (not CPU 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 3.0.16Signal 0.226965 0.238999

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-mps-v2-20-10-neos20.opb
MD5SUMd5ea3d9967a24b7bed67317421f8b87e
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-468992
Best CPU time to get the best result obtained on this benchmark4.34934
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -468992
Optimality of the best value was proved YES
Number of variables8411
Total number of constraints2456
Number of constraints which are clauses412
Number of constraints which are cardinality constraints (but not clauses)426
Number of constraints which are nor clauses,nor cardinality constraints1618
Minimum length of a constraint2
Maximum length of a constraint270
Number of terms in the objective function 150
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 5368709115
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint 171798691840
Number of bits of the biggest number in a constraint 38
Biggest sum of numbers in a constraint 344670818303
Number of bits of the biggest sum of numbers39
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00/0.00	c bsolo beta version 3.0.16 - 04/04/2007 : 1458 GMT
0.00/0.00	c Developed by Vasco Manquinho 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 Memory Limit set to 1800 MB
0.00/0.00	c Instance file /tmp/evaluation/365386-1177050475/instance-365386-1177050475.opb
0.00/0.00	c File size is 386507 bytes.
0.00/0.00	c Coefficients are big enough for not using lower bounding.
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0.00/0.02	c Coefficients are big enough for not using lower bounding.
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0.00/0.02	c Coefficients are big enough for not using lower bounding.
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0.00/0.02	c Coefficients are big enough for not using lower bounding.
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0.00/0.02	c Coefficients are big enough for not using lower bounding.
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0.00/0.02	c Coefficients are big enough for not using lower bounding.
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0.00/0.02	c Coefficients are big enough for not using lower bounding.
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0.00/0.03	c Coefficients are big enough for not using lower bounding.
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0.00/0.06	c Coefficients are big enough for not using lower bounding.
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0.00/0.06	c Coefficients are big enough for not using lower bounding.
0.00/0.07	c Highest Coefficient sum: 3.44671e+11
0.00/0.07	c Parsing was ok!!
0.00/0.07	c Total parsing time: 0.071 s
0.00/0.08	c Var: 8411 Constr: 3209 1301/4/1904 Lit: 50018 Watch. Lit: 20505
0.00/0.08	c Obj. Vars: 150 (1.78338 % of total variables)
0.19/0.21	c Pre-processing Time: 0.208 s
0.19/0.22	*** glibc detected *** double free or corruption (fasttop): 0x08389540 ***
0.19/0.22	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.22	c        0   1089     1487    16541   11     8909   29013      0      0 0.21

Verifier Data (download as text)

ERROR: no interpretation found !

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node30/watcher-365386-1177050475 -o ROOT/results/node30/solver-365386-1177050475 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/365386-1177050475/instance-365386-1177050475.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): 3600 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.91 1.02 1.00 3/77 22420
/proc/meminfo: memFree=1620888/2055920 swapFree=4157140/4192956
[pid=22420] ppid=22418 vsize=12116 CPUtime=0
/proc/22420/stat : 22420 (bsolo3.0.16) R 22418 22420 22360 0 -1 4194304 369 0 0 0 0 0 0 0 18 0 1 0 152963172 12406784 337 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 7357288 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22420/statm: 3029 337 283 324 0 2003 0

[startup+0.0896521 s]
/proc/loadavg: 0.91 1.02 1.00 3/77 22420
/proc/meminfo: memFree=1620888/2055920 swapFree=4157140/4192956
[pid=22420] ppid=22418 vsize=6644 CPUtime=0.08
/proc/22420/stat : 22420 (bsolo3.0.16) R 22418 22420 22360 0 -1 4194304 1146 0 0 0 8 0 0 0 18 0 1 0 152963172 6803456 1019 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22420/statm: 1661 1019 305 324 0 730 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 6644

[startup+0.101653 s]
/proc/loadavg: 0.91 1.02 1.00 3/77 22420
/proc/meminfo: memFree=1620888/2055920 swapFree=4157140/4192956
[pid=22420] ppid=22418 vsize=6644 CPUtime=0.09
/proc/22420/stat : 22420 (bsolo3.0.16) R 22418 22420 22360 0 -1 4194304 1146 0 0 0 9 0 0 0 18 0 1 0 152963172 6803456 1019 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22420/statm: 1661 1019 305 324 0 730 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6644

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

[startup+0.20166 s]
/proc/loadavg: 0.91 1.02 1.00 3/77 22420
/proc/meminfo: memFree=1620888/2055920 swapFree=4157140/4192956
[pid=22420] ppid=22418 vsize=7220 CPUtime=0.19
/proc/22420/stat : 22420 (bsolo3.0.16) R 22418 22420 22360 0 -1 4194304 1260 0 0 0 18 1 0 0 18 0 1 0 152963172 7393280 1133 18446744073709551615 134512640 135841103 4294956672 18446744073709551615 134546946 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22420/statm: 1805 1133 306 324 0 874 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 7220

Child ended because it received signal 6 (SIGABRT)
Real time (s): 0.238999
CPU time (s): 0.226965
CPU user time (s): 0.200969
CPU system time (s): 0.025996
CPU usage (%): 94.9648
Max. virtual memory (cumulated for all children) (KiB): 7220

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.200969
system time used= 0.025996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1365
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 13
involuntary context switches= 0

runsolver used 0.001999 second user time and 0.012998 second system time

The end

Launcher Data (download as text)

Begin job on node30 on Fri Apr 20 06:27:55 UTC 2007

IDJOB= 365386
IDBENCH= 2321
IDSOLVER= 163
FILE ID= node30/365386-1177050475

PBS_JOBID= 4640179

Free space on /tmp= 66392 MiB

SOLVER NAME= bsolo 3.0.16
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-neos20.opb
COMMAND LINE= bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/365386-1177050475/instance-365386-1177050475.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node30/watcher-365386-1177050475 -o ROOT/results/node30/solver-365386-1177050475 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.16 -t1800 -m1800 /tmp/evaluation/365386-1177050475/instance-365386-1177050475.opb            

META MD5SUM SOLVER= b11bf0769a124f73ad50b0fdfcd50482
MD5SUM BENCH=  d5ea3d9967a24b7bed67317421f8b87e

RANDOM SEED= 677985874

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node30.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.218
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		: 3000.218
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:       1621296 kB
Buffers:         67760 kB
Cached:         278560 kB
SwapCached:      15168 kB
Active:         148924 kB
Inactive:       220404 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1621296 kB
SwapTotal:     4192956 kB
SwapFree:      4157140 kB
Dirty:            5036 kB
Writeback:           0 kB
Mapped:          29820 kB
Slab:            50796 kB
Committed_AS:  3425164 kB
PageTables:       1776 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66389 MiB

End job on node30 on Fri Apr 20 06:27:55 UTC 2007