Trace number 458589

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
PBS4_v2 2007-03-23UNSAT 11.3393 11.344

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-reduced-mps-v2-20-10-pilot.opb
MD5SUM3b411a9d6011bc35efb221797d9fcf38
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 benchmark1.92771
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables86785
Total number of constraints2481
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 constraints2481
Minimum length of a constraint10
Maximum length of a constraint7620
Number of terms in the objective function 840
Biggest coefficient in the objective function 21170
Number of bits for the biggest coefficient in the objective function 15
Sum of the numbers in the objective function 524903
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 262145
Number of bits of the biggest number in a constraint 19
Biggest sum of numbers in a constraint 530339
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 PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00/0.00	c Solving /tmp/evaluation/458589-1178637200/instance-458589-1178637200.opb ......
11.29/11.32	c done parsing opb.
11.29/11.32	s UNSATISFIABLE
11.29/11.32	c Total Run Time					0.167975

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/458589-1178637200/instance-458589-1178637200.opb is already a linear file

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node75/watcher-458589-1178637200 -o ROOT/results/node75/solver-458589-1178637200 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458589-1178637200/instance-458589-1178637200.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: 0.99 0.98 0.95 3/64 28461
/proc/meminfo: memFree=1588992/2055920 swapFree=4183972/4192956
[pid=28461] ppid=28459 vsize=9464 CPUtime=0
/proc/28461/stat : 28461 (PBS4_SAT07v2) R 28459 28461 27758 0 -1 4194304 509 0 0 0 0 0 0 0 20 0 1 0 311633922 9691136 491 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134570671 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28461/statm: 2366 495 79 219 0 2143 0

[startup+0.0378459 s]
/proc/loadavg: 0.99 0.98 0.95 3/64 28461
/proc/meminfo: memFree=1588992/2055920 swapFree=4183972/4192956
[pid=28461] ppid=28459 vsize=13000 CPUtime=0.03
/proc/28461/stat : 28461 (PBS4_SAT07v2) R 28459 28461 27758 0 -1 4194304 3118 0 0 0 2 1 0 0 20 0 1 0 311633922 13312000 3002 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134586939 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28461/statm: 3250 3002 86 219 0 3027 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13000

[startup+0.101857 s]
/proc/loadavg: 0.99 0.98 0.95 3/64 28461
/proc/meminfo: memFree=1588992/2055920 swapFree=4183972/4192956
[pid=28461] ppid=28459 vsize=14092 CPUtime=0.09
/proc/28461/stat : 28461 (PBS4_SAT07v2) R 28459 28461 27758 0 -1 4194304 3364 0 0 0 8 1 0 0 20 0 1 0 311633922 14430208 3248 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134784927 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28461/statm: 3523 3248 86 219 0 3300 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 14092

[startup+0.301896 s]
/proc/loadavg: 0.99 0.98 0.95 3/64 28461
/proc/meminfo: memFree=1588992/2055920 swapFree=4183972/4192956
[pid=28461] ppid=28459 vsize=14984 CPUtime=0.29
/proc/28461/stat : 28461 (PBS4_SAT07v2) R 28459 28461 27758 0 -1 4194304 3583 0 0 0 28 1 0 0 22 0 1 0 311633922 15343616 3467 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134586372 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28461/statm: 3746 3467 86 219 0 3523 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 14984

[startup+0.701975 s]
/proc/loadavg: 0.99 0.98 0.95 3/64 28461
/proc/meminfo: memFree=1588992/2055920 swapFree=4183972/4192956
[pid=28461] ppid=28459 vsize=16448 CPUtime=0.69
/proc/28461/stat : 28461 (PBS4_SAT07v2) R 28459 28461 27758 0 -1 4194304 3963 0 0 0 68 1 0 0 25 0 1 0 311633922 16842752 3847 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134586362 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28461/statm: 4112 3847 86 219 0 3889 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16448

[startup+1.50113 s]
/proc/loadavg: 0.99 0.98 0.95 2/65 28462
/proc/meminfo: memFree=1572600/2055920 swapFree=4183972/4192956
[pid=28461] ppid=28459 vsize=19160 CPUtime=1.49
/proc/28461/stat : 28461 (PBS4_SAT07v2) R 28459 28461 27758 0 -1 4194304 4628 0 0 0 148 1 0 0 25 0 1 0 311633922 19619840 4512 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134530468 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28461/statm: 4790 4512 86 219 0 4567 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 19160

[startup+3.10145 s]
/proc/loadavg: 0.99 0.98 0.95 2/65 28462
/proc/meminfo: memFree=1569976/2055920 swapFree=4183972/4192956
[pid=28461] ppid=28459 vsize=22156 CPUtime=3.08
/proc/28461/stat : 28461 (PBS4_SAT07v2) R 28459 28461 27758 0 -1 4194304 5330 0 0 0 307 1 0 0 25 0 1 0 311633922 22687744 5214 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134586456 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28461/statm: 5539 5214 86 219 0 5316 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 22156

[startup+6.30209 s]
/proc/loadavg: 0.99 0.98 0.95 2/65 28462
/proc/meminfo: memFree=1562744/2055920 swapFree=4183972/4192956
[pid=28461] ppid=28459 vsize=36560 CPUtime=6.29
/proc/28461/stat : 28461 (PBS4_SAT07v2) R 28459 28461 27758 0 -1 4194304 8964 0 0 0 626 3 0 0 25 0 1 0 311633922 37437440 8815 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134793161 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28461/statm: 9140 8815 86 219 0 8917 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 36560

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

[startup+9.50172 s]
/proc/loadavg: 0.99 0.98 0.95 2/65 28462
/proc/meminfo: memFree=1552768/2055920 swapFree=4183972/4192956
[pid=28461] ppid=28459 vsize=37932 CPUtime=9.48
/proc/28461/stat : 28461 (PBS4_SAT07v2) R 28459 28461 27758 0 -1 4194304 9312 0 0 0 945 3 0 0 25 0 1 0 311633922 38842368 9163 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134586986 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28461/statm: 9483 9163 86 219 0 9260 0
Current children cumulated CPU time (s) 9.48
Current children cumulated vsize (KiB) 37932

[startup+10.3019 s]
/proc/loadavg: 0.99 0.98 0.95 2/65 28462
/proc/meminfo: memFree=1552384/2055920 swapFree=4183972/4192956
[pid=28461] ppid=28459 vsize=38448 CPUtime=10.28
/proc/28461/stat : 28461 (PBS4_SAT07v2) R 28459 28461 27758 0 -1 4194304 9402 0 0 0 1025 3 0 0 25 0 1 0 311633922 39370752 9253 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134587091 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28461/statm: 9612 9253 86 219 0 9389 0
Current children cumulated CPU time (s) 10.28
Current children cumulated vsize (KiB) 38448

[startup+11.101 s]
/proc/loadavg: 0.99 0.98 0.95 2/65 28462
/proc/meminfo: memFree=1551816/2055920 swapFree=4183972/4192956
[pid=28461] ppid=28459 vsize=38996 CPUtime=11.08
/proc/28461/stat : 28461 (PBS4_SAT07v2) R 28459 28461 27758 0 -1 4194304 9485 0 0 0 1105 3 0 0 25 0 1 0 311633922 39931904 9336 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134586965 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28461/statm: 9749 9336 86 219 0 9526 0
Current children cumulated CPU time (s) 11.08
Current children cumulated vsize (KiB) 38996

[startup+11.3021 s]
/proc/loadavg: 0.99 0.98 0.95 2/65 28462
/proc/meminfo: memFree=1551816/2055920 swapFree=4183972/4192956
[pid=28461] ppid=28459 vsize=51096 CPUtime=11.29
/proc/28461/stat : 28461 (PBS4_SAT07v2) R 28459 28461 27758 0 -1 4194304 12772 0 0 0 1124 5 0 0 25 0 1 0 311633922 52322304 10418 18446744073709551615 134512640 135410602 4294956672 18446744073709551615 134545617 0 0 4096 16384 0 0 0 17 1 0 0
/proc/28461/statm: 12774 10418 89 219 0 12551 0
Current children cumulated CPU time (s) 11.29
Current children cumulated vsize (KiB) 51096

Child status: 0
Real time (s): 11.344
CPU time (s): 11.3393
CPU user time (s): 11.2763
CPU system time (s): 0.06299
CPU usage (%): 99.9581
Max. virtual memory (cumulated for all children) (KiB): 51096

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 11.2763
system time used= 0.06299
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 12788
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= 8
involuntary context switches= 12

runsolver used 0.007998 second user time and 0.030995 second system time

The end

Launcher Data (download as text)

Begin job on node75 on Tue May  8 15:13:20 UTC 2007

IDJOB= 458589
IDBENCH= 1703
IDSOLVER= 200
FILE ID= node75/458589-1178637200

PBS_JOBID= 5218320

Free space on /tmp= 66553 MiB

SOLVER NAME= PBS4_v2 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-reduced-mps-v2-20-10-pilot.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458589-1178637200/instance-458589-1178637200.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node75/convwatcher-458589-1178637200 -o ROOT/results/node75/conversion-458589-1178637200 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458589-1178637200/instance-458589-1178637200.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node75/watcher-458589-1178637200 -o ROOT/results/node75/solver-458589-1178637200 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458589-1178637200/instance-458589-1178637200.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  3b411a9d6011bc35efb221797d9fcf38

RANDOM SEED= 602011159

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node75.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		: 3000.257
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		: 3000.257
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1589400 kB
Buffers:         36752 kB
Cached:         323112 kB
SwapCached:       2848 kB
Active:         118204 kB
Inactive:       264672 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1589400 kB
SwapTotal:     4192956 kB
SwapFree:      4183972 kB
Dirty:           10784 kB
Writeback:           0 kB
Mapped:          28936 kB
Slab:            69560 kB
Committed_AS:  3415672 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 node75 on Tue May  8 15:13:32 UTC 2007