Trace number 432792

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 3.0.17UNSAT 1.05184 1.055

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/
MIPLIB/miplib2003/normalized-reduced-mps-v2-20-10-momentum1.opb
MD5SUMe2a78df60352c05b10262815438dedba
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark1.05184
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables41495
Total number of constraints40134
Number of constraints which are clauses24365
Number of constraints which are cardinality constraints (but not clauses)651
Number of constraints which are nor clauses,nor cardinality constraints15118
Minimum length of a constraint1
Maximum length of a constraint840
Number of terms in the objective function 31027
Biggest coefficient in the objective function 6260
Number of bits for the biggest coefficient in the objective function 13
Sum of the numbers in the objective function 553158
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 371255
Number of bits of the biggest number in a constraint 19
Biggest sum of numbers in a constraint 553158
Number of bits of the biggest sum of numbers20
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 3.0.17 - 27/04/2007 : 1600 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 Memory Limit set to 1800 MB
0.00/0.00	c Instance file /tmp/evaluation/432792-1177949875/instance-432792-1177949875.opb
0.00/0.00	c File size is 5383284 bytes.
0.89/0.97	c Highest Coefficient sum: 553158
0.89/0.97	c Parsing was ok!!
0.89/0.97	c Total parsing time: 0.974 s
0.99/1.03	c Var: 41495 Constr: 40692 24908/92/15692 Lit: 519765 Watch. Lit: 289156
0.99/1.03	c Obj. Vars: 31027 (74.7729 % of total variables)
0.99/1.04	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.99/1.04	c    0        0      0        0    40692   519765      0      0 1.04
0.99/1.04	s UNSATISFIABLE
0.99/1.04	c Total time: 1.044 s

Verifier Data (download as text)

ERROR: no interpretation found !

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node60/watcher-432792-1177949875 -o ROOT/results/node60/solver-432792-1177949875 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/432792-1177949875/instance-432792-1177949875.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: 1.00 1.00 0.95 3/64 32197
/proc/meminfo: memFree=1848608/2055920 swapFree=4183304/4192956
[pid=32197] ppid=32195 vsize=16996 CPUtime=0
/proc/32197/stat : 32197 (bsolo3.0.17) R 32195 32197 31193 0 -1 4194304 363 0 0 0 0 0 0 0 18 0 1 0 242897542 17403904 333 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32197/statm: 4249 334 279 324 0 2004 0

[startup+0.0417481 s]
/proc/loadavg: 1.00 1.00 0.95 3/64 32197
/proc/meminfo: memFree=1848608/2055920 swapFree=4183304/4192956
[pid=32197] ppid=32195 vsize=18612 CPUtime=0.03
/proc/32197/stat : 32197 (bsolo3.0.17) R 32195 32197 31193 0 -1 4194304 755 0 0 0 3 0 0 0 18 0 1 0 242897542 19058688 725 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 6000211 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32197/statm: 4653 734 325 324 0 2408 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 18612

[startup+0.102753 s]
/proc/loadavg: 1.00 1.00 0.95 3/64 32197
/proc/meminfo: memFree=1848608/2055920 swapFree=4183304/4192956
[pid=32197] ppid=32195 vsize=12144 CPUtime=0.09
/proc/32197/stat : 32197 (bsolo3.0.17) R 32195 32197 31193 0 -1 4194304 1266 0 0 0 9 0 0 0 18 0 1 0 242897542 12435456 1196 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 5969531 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32197/statm: 3036 1196 411 324 0 791 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12144

[startup+0.301773 s]
/proc/loadavg: 1.00 1.00 0.95 3/64 32197
/proc/meminfo: memFree=1848608/2055920 swapFree=4183304/4192956
[pid=32197] ppid=32195 vsize=14712 CPUtime=0.29
/proc/32197/stat : 32197 (bsolo3.0.17) R 32195 32197 31193 0 -1 4194304 2227 0 0 0 29 0 0 0 19 0 1 0 242897542 15065088 2157 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 134525286 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32197/statm: 3678 2157 714 324 0 1433 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 14712

[startup+0.702812 s]
/proc/loadavg: 1.00 1.00 0.95 3/64 32197
/proc/meminfo: memFree=1848608/2055920 swapFree=4183304/4192956
[pid=32197] ppid=32195 vsize=18664 CPUtime=0.69
/proc/32197/stat : 32197 (bsolo3.0.17) R 32195 32197 31193 0 -1 4194304 3726 0 0 0 69 0 0 0 22 0 1 0 242897542 19111936 3656 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 5969531 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32197/statm: 4666 3656 1230 324 0 2421 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 18664

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

[startup+0.902842 s]
/proc/loadavg: 1.00 1.00 0.95 3/64 32197
/proc/meminfo: memFree=1848608/2055920 swapFree=4183304/4192956
[pid=32197] ppid=32195 vsize=20952 CPUtime=0.89
/proc/32197/stat : 32197 (bsolo3.0.17) R 32195 32197 31193 0 -1 4194304 4582 0 0 0 88 1 0 0 24 0 1 0 242897542 21454848 4433 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 5969531 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32197/statm: 5238 4433 1506 324 0 2993 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 20952

[startup+1.00184 s]
/proc/loadavg: 1.00 1.00 0.95 2/65 32198
/proc/meminfo: memFree=1831000/2055920 swapFree=4183304/4192956
[pid=32197] ppid=32195 vsize=22368 CPUtime=0.99
/proc/32197/stat : 32197 (bsolo3.0.17) R 32195 32197 31193 0 -1 4194304 6281 0 0 0 97 2 0 0 25 0 1 0 242897542 22904832 4817 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 5969531 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32197/statm: 5592 4819 300 324 0 4662 0
Current children cumulated CPU time (s) 0.99
Current children cumulated vsize (KiB) 22368

Child status: 0
Real time (s): 1.055
CPU time (s): 1.05184
CPU user time (s): 1.01584
CPU system time (s): 0.035994
CPU usage (%): 99.7002
Max. virtual memory (cumulated for all children) (KiB): 22368

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.01585
system time used= 0.035994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7659
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= 12
involuntary context switches= 1

runsolver used 0.003999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node60 on Mon Apr 30 16:17:56 UTC 2007

IDJOB= 432792
IDBENCH= 1799
IDSOLVER= 199
FILE ID= node60/432792-1177949875

PBS_JOBID= 4727538

Free space on /tmp= 66553 MiB

SOLVER NAME= bsolo 3.0.17
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/MIPLIB/miplib2003/normalized-reduced-mps-v2-20-10-momentum1.opb
COMMAND LINE= bsolo3.0.17 -m1800 /tmp/evaluation/432792-1177949875/instance-432792-1177949875.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node60/watcher-432792-1177949875 -o ROOT/results/node60/solver-432792-1177949875 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/432792-1177949875/instance-432792-1177949875.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  e2a78df60352c05b10262815438dedba

RANDOM SEED= 54965497

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node60.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		: 3000.214
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:       1849016 kB
Buffers:         16668 kB
Cached:         114980 kB
SwapCached:       3672 kB
Active:          30100 kB
Inactive:       111272 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1849016 kB
SwapTotal:     4192956 kB
SwapFree:      4183304 kB
Dirty:           11844 kB
Writeback:           0 kB
Mapped:          15748 kB
Slab:            51452 kB
Committed_AS:  2705504 kB
PageTables:       1464 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= 66553 MiB

End job on node60 on Mon Apr 30 16:17:57 UTC 2007