Trace number 362975

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 2007-03-23UNSAT 12.1262 12.1323

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/362975-1177021417/instance-362975-1177021417.opb ......
12.09/12.11	c done parsing opb.
12.09/12.11	s UNSATISFIABLE
12.09/12.11	c Total Run Time					0.178973

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/362975-1177021417/instance-362975-1177021417.opb is already a linear file

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node15/watcher-362975-1177021417 -o ROOT/results/node15/solver-362975-1177021417 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/362975-1177021417/PBS4 /tmp/evaluation/362975-1177021417/instance-362975-1177021417.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: 0.92 0.98 0.99 3/77 9957
/proc/meminfo: memFree=1821032/2055920 swapFree=4169120/4192956
[pid=9957] ppid=9955 vsize=9464 CPUtime=0
/proc/9957/stat : 9957 (PBS4) R 9955 9957 19518 0 -1 4194304 509 0 0 0 0 0 0 0 18 0 1 0 150059294 9691136 491 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134572872 0 0 4096 0 0 0 0 17 1 0 0
/proc/9957/statm: 2366 495 81 219 0 2143 0

[startup+0.065843 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 9957
/proc/meminfo: memFree=1821032/2055920 swapFree=4169120/4192956
[pid=9957] ppid=9955 vsize=13536 CPUtime=0.05
/proc/9957/stat : 9957 (PBS4) R 9955 9957 19518 0 -1 4194304 3218 0 0 0 5 0 0 0 18 0 1 0 150059294 13860864 3102 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135015350 0 0 4096 0 0 0 0 17 1 0 0
/proc/9957/statm: 3384 3102 88 219 0 3161 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 13536

[startup+0.101847 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 9957
/proc/meminfo: memFree=1821032/2055920 swapFree=4169120/4192956
[pid=9957] ppid=9955 vsize=13948 CPUtime=0.09
/proc/9957/stat : 9957 (PBS4) R 9955 9957 19518 0 -1 4194304 3345 0 0 0 9 0 0 0 18 0 1 0 150059294 14282752 3229 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135057389 0 0 4096 0 0 0 0 17 1 0 0
/proc/9957/statm: 3487 3229 88 219 0 3264 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13948

[startup+0.302865 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 9957
/proc/meminfo: memFree=1821032/2055920 swapFree=4169120/4192956
[pid=9957] ppid=9955 vsize=14984 CPUtime=0.29
/proc/9957/stat : 9957 (PBS4) R 9955 9957 19518 0 -1 4194304 3573 0 0 0 29 0 0 0 19 0 1 0 150059294 15343616 3457 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134784767 0 0 4096 0 0 0 0 17 1 0 0
/proc/9957/statm: 3746 3457 88 219 0 3523 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 14984

[startup+0.701902 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 9957
/proc/meminfo: memFree=1821032/2055920 swapFree=4169120/4192956
[pid=9957] ppid=9955 vsize=16448 CPUtime=0.69
/proc/9957/stat : 9957 (PBS4) R 9955 9957 19518 0 -1 4194304 3912 0 0 0 68 1 0 0 23 0 1 0 150059294 16842752 3796 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134784767 0 0 4096 0 0 0 0 17 1 0 0
/proc/9957/statm: 4112 3796 88 219 0 3889 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16448

[startup+1.50297 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 9958
/proc/meminfo: memFree=1804896/2055920 swapFree=4169120/4192956
[pid=9957] ppid=9955 vsize=18964 CPUtime=1.49
/proc/9957/stat : 9957 (PBS4) R 9955 9957 19518 0 -1 4194304 4582 0 0 0 148 1 0 0 25 0 1 0 150059294 19419136 4466 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134804326 0 0 4096 0 0 0 0 17 1 0 0
/proc/9957/statm: 4741 4466 88 219 0 4518 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 18964

[startup+3.10112 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 9958
/proc/meminfo: memFree=1802144/2055920 swapFree=4169120/4192956
[pid=9957] ppid=9955 vsize=21352 CPUtime=3.08
/proc/9957/stat : 9957 (PBS4) R 9955 9957 19518 0 -1 4194304 5148 0 0 0 307 1 0 0 25 0 1 0 150059294 21864448 5032 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135022988 0 0 4096 0 0 0 0 17 1 0 0
/proc/9957/statm: 5338 5032 88 219 0 5115 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 21352

[startup+6.30141 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 9958
/proc/meminfo: memFree=1796256/2055920 swapFree=4169120/4192956
[pid=9957] ppid=9955 vsize=36560 CPUtime=6.29
/proc/9957/stat : 9957 (PBS4) R 9955 9957 19518 0 -1 4194304 8911 0 0 0 626 3 0 0 25 0 1 0 150059294 37437440 8762 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135057389 0 0 4096 0 0 0 0 17 1 0 0
/proc/9957/statm: 9140 8762 88 219 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+9.50171 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 9958
/proc/meminfo: memFree=1784928/2055920 swapFree=4169120/4192956
[pid=9957] ppid=9955 vsize=37932 CPUtime=9.48
/proc/9957/stat : 9957 (PBS4) R 9955 9957 19518 0 -1 4194304 9231 0 0 0 945 3 0 0 25 0 1 0 150059294 38842368 9082 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134636049 0 0 4096 0 0 0 0 17 1 0 0
/proc/9957/statm: 9483 9082 88 219 0 9260 0
Current children cumulated CPU time (s) 9.48
Current children cumulated vsize (KiB) 37932

[startup+11.1019 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 9958
/proc/meminfo: memFree=1784240/2055920 swapFree=4169120/4192956
[pid=9957] ppid=9955 vsize=38448 CPUtime=11.08
/proc/9957/stat : 9957 (PBS4) R 9955 9957 19518 0 -1 4194304 9417 0 0 0 1105 3 0 0 25 0 1 0 150059294 39370752 9268 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134530221 0 0 4096 0 0 0 0 17 1 0 0
/proc/9957/statm: 9612 9268 88 219 0 9389 0
Current children cumulated CPU time (s) 11.08
Current children cumulated vsize (KiB) 38448

[startup+11.9019 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 9958
/proc/meminfo: memFree=1784240/2055920 swapFree=4169120/4192956
[pid=9957] ppid=9955 vsize=56464 CPUtime=11.89
/proc/9957/stat : 9957 (PBS4) R 9955 9957 19518 0 -1 4194304 10913 0 0 0 1185 4 0 0 25 0 1 0 150059294 57819136 10764 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134572872 0 0 4096 0 0 0 0 17 1 0 0
/proc/9957/statm: 14116 10766 89 219 0 13893 0
Current children cumulated CPU time (s) 11.89
Current children cumulated vsize (KiB) 56464

[startup+12.1059 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 9958
/proc/meminfo: memFree=1779312/2055920 swapFree=4169120/4192956
[pid=9957] ppid=9955 vsize=51096 CPUtime=12.09
/proc/9957/stat : 9957 (PBS4) R 9955 9957 19518 0 -1 4194304 12776 0 0 0 1204 5 0 0 25 0 1 0 150059294 52322304 10422 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134548063 0 0 4096 0 0 0 0 17 1 0 0
/proc/9957/statm: 12774 10422 93 219 0 12551 0
Current children cumulated CPU time (s) 12.09
Current children cumulated vsize (KiB) 51096

Child status: 0
Real time (s): 12.1323
CPU time (s): 12.1262
CPU user time (s): 12.0632
CPU system time (s): 0.06299
CPU usage (%): 99.9496
Max. virtual memory (cumulated for all children) (KiB): 56464

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.0632
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= 12790
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= 256

runsolver used 0.013997 second user time and 0.035994 second system time

The end

Launcher Data (download as text)

Begin job on node15 on Thu Apr 19 22:23:37 UTC 2007

IDJOB= 362975
IDBENCH= 1703
IDSOLVER= 157
FILE ID= node15/362975-1177021417

PBS_JOBID= 4630566

Free space on /tmp= 66475 MiB

SOLVER NAME= PBS4 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= /tmp/evaluation/362975-1177021417/PBS4 /tmp/evaluation/362975-1177021417/instance-362975-1177021417.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node15/convwatcher-362975-1177021417 -o ROOT/results/node15/conversion-362975-1177021417 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/362975-1177021417/instance-362975-1177021417.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node15/watcher-362975-1177021417 -o ROOT/results/node15/solver-362975-1177021417 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/362975-1177021417/PBS4 /tmp/evaluation/362975-1177021417/instance-362975-1177021417.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  3b411a9d6011bc35efb221797d9fcf38

RANDOM SEED= 563958309

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node15.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		: 3000.227
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		: 3000.227
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:       1821504 kB
Buffers:         26424 kB
Cached:         132672 kB
SwapCached:       2268 kB
Active:          91496 kB
Inactive:        94120 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1821504 kB
SwapTotal:     4192956 kB
SwapFree:      4169120 kB
Dirty:            9840 kB
Writeback:           0 kB
Mapped:          34028 kB
Slab:            34248 kB
Committed_AS:  6601804 kB
PageTables:       1880 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= 66475 MiB

End job on node15 on Thu Apr 19 22:23:49 UTC 2007