Trace number 363297

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 7.38488 7.38917

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 PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00/0.00	c Solving /tmp/evaluation/363297-1177025573/instance-363297-1177025573.opb ......
7.28/7.37	c done parsing opb.
7.28/7.37	s UNSATISFIABLE
7.28/7.38	c Total Run Time					0.030995

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/363297-1177025573/instance-363297-1177025573.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/node67/watcher-363297-1177025573 -o ROOT/results/node67/solver-363297-1177025573 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/363297-1177025573/PBS4 /tmp/evaluation/363297-1177025573/instance-363297-1177025573.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 3/64 767
/proc/meminfo: memFree=1804976/2055920 swapFree=4180708/4192956
[pid=767] ppid=765 vsize=5216 CPUtime=0
/proc/767/stat : 767 (PBS4) R 765 767 13172 0 -1 4194304 490 0 0 0 0 0 0 0 18 0 1 0 178546827 5341184 473 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134572872 0 0 4096 0 0 0 0 17 1 0 0
/proc/767/statm: 1304 476 81 219 0 1081 0

[startup+0.06485 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 767
/proc/meminfo: memFree=1804976/2055920 swapFree=4180708/4192956
[pid=767] ppid=765 vsize=7672 CPUtime=0.05
/proc/767/stat : 767 (PBS4) R 765 767 13172 0 -1 4194304 1704 0 0 0 5 0 0 0 18 0 1 0 178546827 7856128 1653 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134784767 0 0 4096 0 0 0 0 17 1 0 0
/proc/767/statm: 1918 1653 87 219 0 1695 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 7672

[startup+0.101856 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 767
/proc/meminfo: memFree=1804976/2055920 swapFree=4180708/4192956
[pid=767] ppid=765 vsize=8260 CPUtime=0.09
/proc/767/stat : 767 (PBS4) R 765 767 13172 0 -1 4194304 1862 0 0 0 9 0 0 0 18 0 1 0 178546827 8458240 1778 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134797988 0 0 4096 0 0 0 0 17 1 0 0
/proc/767/statm: 2065 1778 87 219 0 1842 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8260

[startup+0.301893 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 767
/proc/meminfo: memFree=1804976/2055920 swapFree=4180708/4192956
[pid=767] ppid=765 vsize=8920 CPUtime=0.29
/proc/767/stat : 767 (PBS4) R 765 767 13172 0 -1 4194304 2031 0 0 0 29 0 0 0 19 0 1 0 178546827 9134080 1947 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134588395 0 0 4096 0 0 0 0 17 1 0 0
/proc/767/statm: 2230 1947 88 219 0 2007 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8920

[startup+0.701965 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 767
/proc/meminfo: memFree=1804976/2055920 swapFree=4180708/4192956
[pid=767] ppid=765 vsize=8920 CPUtime=0.69
/proc/767/stat : 767 (PBS4) R 765 767 13172 0 -1 4194304 2031 0 0 0 69 0 0 0 22 0 1 0 178546827 9134080 1947 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134588395 0 0 4096 0 0 0 0 17 1 0 0
/proc/767/statm: 2230 1947 88 219 0 2007 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 8920

[startup+1.50111 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 768
/proc/meminfo: memFree=1797544/2055920 swapFree=4180708/4192956
[pid=767] ppid=765 vsize=8920 CPUtime=1.49
/proc/767/stat : 767 (PBS4) R 765 767 13172 0 -1 4194304 2031 0 0 0 149 0 0 0 25 0 1 0 178546827 9134080 1947 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134588380 0 0 4096 0 0 0 0 17 1 0 0
/proc/767/statm: 2230 1947 88 219 0 2007 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 8920

[startup+3.10141 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 768
/proc/meminfo: memFree=1797416/2055920 swapFree=4180708/4192956
[pid=767] ppid=765 vsize=9408 CPUtime=3.09
/proc/767/stat : 767 (PBS4) R 765 767 13172 0 -1 4194304 2153 0 0 0 309 0 0 0 25 0 1 0 178546827 9633792 2069 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134588869 0 0 4096 0 0 0 0 17 1 0 0
/proc/767/statm: 2352 2069 88 219 0 2129 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 9408

[startup+6.30199 s]
/proc/loadavg: 1.01 1.00 1.00 2/65 768
/proc/meminfo: memFree=1795176/2055920 swapFree=4180708/4192956
[pid=767] ppid=765 vsize=16388 CPUtime=6.29
/proc/767/stat : 767 (PBS4) R 765 767 13172 0 -1 4194304 5913 0 0 0 627 2 0 0 25 0 1 0 178546827 16781312 3723 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134804314 0 0 4096 0 0 0 0 17 1 0 0
/proc/767/statm: 4097 3723 89 219 0 3874 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 16388

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

[startup+7.10114 s]
/proc/loadavg: 1.01 1.00 1.00 2/65 768
/proc/meminfo: memFree=1788656/2055920 swapFree=4180708/4192956
[pid=767] ppid=765 vsize=20868 CPUtime=7.09
/proc/767/stat : 767 (PBS4) R 765 767 13172 0 -1 4194304 7154 0 0 0 706 3 0 0 25 0 1 0 178546827 21368832 4964 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135006597 0 0 4096 0 0 0 0 17 1 0 0
/proc/767/statm: 5217 4964 89 219 0 4994 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 20868

[startup+7.30118 s]
/proc/loadavg: 1.01 1.00 1.00 2/65 768
/proc/meminfo: memFree=1788656/2055920 swapFree=4180708/4192956
[pid=767] ppid=765 vsize=22452 CPUtime=7.28
/proc/767/stat : 767 (PBS4) R 765 767 13172 0 -1 4194304 7615 0 0 0 725 3 0 0 25 0 1 0 178546827 22990848 5328 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134590705 0 0 4096 0 0 0 0 17 1 0 0
/proc/767/statm: 5613 5328 89 219 0 5390 0
Current children cumulated CPU time (s) 7.28
Current children cumulated vsize (KiB) 22452

Child status: 0
Real time (s): 7.38917
CPU time (s): 7.38488
CPU user time (s): 7.34188
CPU system time (s): 0.042993
CPU usage (%): 99.942
Max. virtual memory (cumulated for all children) (KiB): 22452

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.34188
system time used= 0.042993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8025
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= 10

runsolver used 0.009998 second user time and 0.017997 second system time

The end

Launcher Data (download as text)

Begin job on node67 on Thu Apr 19 23:32:53 UTC 2007

IDJOB= 363297
IDBENCH= 1799
IDSOLVER= 157
FILE ID= node67/363297-1177025573

PBS_JOBID= 4630603

Free space on /tmp= 66450 MiB

SOLVER NAME= PBS4 2007-03-23
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= /tmp/evaluation/363297-1177025573/PBS4 /tmp/evaluation/363297-1177025573/instance-363297-1177025573.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node67/convwatcher-363297-1177025573 -o ROOT/results/node67/conversion-363297-1177025573 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/363297-1177025573/instance-363297-1177025573.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node67/watcher-363297-1177025573 -o ROOT/results/node67/solver-363297-1177025573 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/363297-1177025573/PBS4 /tmp/evaluation/363297-1177025573/instance-363297-1177025573.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  e2a78df60352c05b10262815438dedba

RANDOM SEED= 827504290

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node67.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		: 3000.263
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		: 3000.263
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:       1805448 kB
Buffers:         34828 kB
Cached:         158436 kB
SwapCached:       5976 kB
Active:          33076 kB
Inactive:       177144 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1805448 kB
SwapTotal:     4192956 kB
SwapFree:      4180708 kB
Dirty:            6396 kB
Writeback:           0 kB
Mapped:          20472 kB
Slab:            26264 kB
Committed_AS:  1027128 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= 66450 MiB

End job on node67 on Thu Apr 19 23:33:01 UTC 2007