Trace number 362807

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 22.7035 22.7127

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-pilot87.opb
MD5SUMe59c2905e997a0635cce57f2d16b8705
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 benchmark3.20751
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables113861
Total number of constraints3583
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 constraints3583
Minimum length of a constraint10
Maximum length of a constraint8647
Number of terms in the objective function 11587
Biggest coefficient in the objective function 12292
Number of bits for the biggest coefficient in the objective function 14
Sum of the numbers in the objective function 519074
Number of bits of the sum of numbers in the objective function 19
Biggest number in a constraint 262145
Number of bits of the biggest number in a constraint 19
Biggest sum of numbers in a constraint 531294
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/362807-1177018397/instance-362807-1177018397.opb ......
22.58/22.68	c done parsing opb.
22.58/22.68	s UNSATISFIABLE
22.58/22.68	c Total Run Time					0.167975

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/362807-1177018397/instance-362807-1177018397.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/node38/watcher-362807-1177018397 -o ROOT/results/node38/solver-362807-1177018397 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/362807-1177018397/PBS4 /tmp/evaluation/362807-1177018397/instance-362807-1177018397.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: 0.97 1.00 1.00 3/77 1129
/proc/meminfo: memFree=1723544/2055920 swapFree=4159716/4192956
[pid=1129] ppid=1127 vsize=12000 CPUtime=0
/proc/1129/stat : 1129 (PBS4) R 1127 1129 487 0 -1 4194304 512 0 0 0 0 0 0 0 18 0 1 0 134006381 12288000 494 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134572872 0 0 4096 0 0 0 0 17 1 0 0
/proc/1129/statm: 3000 497 81 219 0 2777 0

[startup+0.0808109 s]
/proc/loadavg: 0.97 1.00 1.00 3/77 1129
/proc/meminfo: memFree=1723544/2055920 swapFree=4159716/4192956
[pid=1129] ppid=1127 vsize=17144 CPUtime=0.07
/proc/1129/stat : 1129 (PBS4) R 1127 1129 487 0 -1 4194304 4142 0 0 0 6 1 0 0 18 0 1 0 134006381 17555456 4026 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134530221 0 0 4096 0 0 0 0 17 1 0 0
/proc/1129/statm: 4286 4026 87 219 0 4063 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 17144

[startup+0.101815 s]
/proc/loadavg: 0.97 1.00 1.00 3/77 1129
/proc/meminfo: memFree=1723544/2055920 swapFree=4159716/4192956
[pid=1129] ppid=1127 vsize=17288 CPUtime=0.09
/proc/1129/stat : 1129 (PBS4) R 1127 1129 487 0 -1 4194304 4181 0 0 0 8 1 0 0 18 0 1 0 134006381 17702912 4065 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134588386 0 0 4096 0 0 0 0 17 1 0 0
/proc/1129/statm: 4322 4065 88 219 0 4099 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 17288

[startup+0.301854 s]
/proc/loadavg: 0.97 1.00 1.00 3/77 1129
/proc/meminfo: memFree=1723544/2055920 swapFree=4159716/4192956
[pid=1129] ppid=1127 vsize=17288 CPUtime=0.29
/proc/1129/stat : 1129 (PBS4) R 1127 1129 487 0 -1 4194304 4181 0 0 0 28 1 0 0 19 0 1 0 134006381 17702912 4065 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134588380 0 0 4096 0 0 0 0 17 1 0 0
/proc/1129/statm: 4322 4065 88 219 0 4099 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 17288

[startup+0.70193 s]
/proc/loadavg: 0.97 1.00 1.00 3/77 1129
/proc/meminfo: memFree=1723544/2055920 swapFree=4159716/4192956
[pid=1129] ppid=1127 vsize=17472 CPUtime=0.69
/proc/1129/stat : 1129 (PBS4) R 1127 1129 487 0 -1 4194304 4227 0 0 0 68 1 0 0 22 0 1 0 134006381 17891328 4111 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134588877 0 0 4096 0 0 0 0 17 1 0 0
/proc/1129/statm: 4368 4111 88 219 0 4145 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 17472

[startup+1.50108 s]
/proc/loadavg: 0.97 1.00 1.00 2/78 1130
/proc/meminfo: memFree=1705104/2055920 swapFree=4159716/4192956
[pid=1129] ppid=1127 vsize=21684 CPUtime=1.49
/proc/1129/stat : 1129 (PBS4) R 1127 1129 487 0 -1 4194304 5815 0 0 0 147 2 0 0 25 0 1 0 134006381 22204416 5147 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134588362 0 0 4096 0 0 0 0 17 1 0 0
/proc/1129/statm: 5421 5147 88 219 0 5198 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 21684

[startup+3.10139 s]
/proc/loadavg: 0.97 1.00 1.00 2/78 1130
/proc/meminfo: memFree=1702224/2055920 swapFree=4159716/4192956
[pid=1129] ppid=1127 vsize=23608 CPUtime=3.09
/proc/1129/stat : 1129 (PBS4) R 1127 1129 487 0 -1 4194304 6282 0 0 0 307 2 0 0 25 0 1 0 134006381 24174592 5614 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134588374 0 0 4096 0 0 0 0 17 1 0 0
/proc/1129/statm: 5902 5614 88 219 0 5679 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 23608

[startup+6.30201 s]
/proc/loadavg: 0.97 1.00 1.00 2/78 1130
/proc/meminfo: memFree=1698576/2055920 swapFree=4159716/4192956
[pid=1129] ppid=1127 vsize=28220 CPUtime=6.29
/proc/1129/stat : 1129 (PBS4) R 1127 1129 487 0 -1 4194304 7526 0 0 0 627 2 0 0 25 0 1 0 134006381 28897280 6791 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134801753 0 0 4096 0 0 0 0 17 1 0 0
/proc/1129/statm: 7055 6791 88 219 0 6832 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 28220

[startup+12.7012 s]
/proc/loadavg: 0.97 1.00 1.00 2/78 1130
/proc/meminfo: memFree=1686928/2055920 swapFree=4159716/4192956
[pid=1129] ppid=1127 vsize=39304 CPUtime=12.68
/proc/1129/stat : 1129 (PBS4) R 1127 1129 487 0 -1 4194304 10318 0 0 0 1265 3 0 0 25 0 1 0 134006381 40247296 9437 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134588386 0 0 4096 0 0 0 0 17 1 0 0
/proc/1129/statm: 9826 9437 88 219 0 9603 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 39304

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

[startup+19.1015 s]
/proc/loadavg: 0.98 1.00 1.00 2/78 1130
/proc/meminfo: memFree=1678352/2055920 swapFree=4159716/4192956
[pid=1129] ppid=1127 vsize=47448 CPUtime=19.08
/proc/1129/stat : 1129 (PBS4) R 1127 1129 487 0 -1 4194304 12450 0 0 0 1903 5 0 0 25 0 1 0 134006381 48586752 11569 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134588395 0 0 4096 0 0 0 0 17 1 0 0
/proc/1129/statm: 11862 11569 88 219 0 11639 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 47448

[startup+20.7018 s]
/proc/loadavg: 0.98 1.00 1.00 2/78 1130
/proc/meminfo: memFree=1676880/2055920 swapFree=4159716/4192956
[pid=1129] ppid=1127 vsize=50000 CPUtime=20.68
/proc/1129/stat : 1129 (PBS4) R 1127 1129 487 0 -1 4194304 13038 0 0 0 2063 5 0 0 25 0 1 0 134006381 51200000 12157 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134588877 0 0 4096 0 0 0 0 17 1 0 0
/proc/1129/statm: 12500 12157 88 219 0 12277 0
Current children cumulated CPU time (s) 20.68
Current children cumulated vsize (KiB) 50000

[startup+21.5029 s]
/proc/loadavg: 0.98 1.00 1.00 2/78 1130
/proc/meminfo: memFree=1675024/2055920 swapFree=4159716/4192956
[pid=1129] ppid=1127 vsize=51756 CPUtime=21.49
/proc/1129/stat : 1129 (PBS4) R 1127 1129 487 0 -1 4194304 13507 0 0 0 2143 6 0 0 25 0 1 0 134006381 52998144 12626 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134588368 0 0 4096 0 0 0 0 17 1 0 0
/proc/1129/statm: 12939 12626 88 219 0 12716 0
Current children cumulated CPU time (s) 21.49
Current children cumulated vsize (KiB) 51756

[startup+22.3011 s]
/proc/loadavg: 0.98 1.00 1.00 2/78 1130
/proc/meminfo: memFree=1672080/2055920 swapFree=4159716/4192956
[pid=1129] ppid=1127 vsize=53748 CPUtime=22.28
/proc/1129/stat : 1129 (PBS4) R 1127 1129 487 0 -1 4194304 13911 0 0 0 2222 6 0 0 25 0 1 0 134006381 55037952 13030 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134530219 0 0 4096 0 0 0 0 17 1 0 0
/proc/1129/statm: 13437 13030 88 219 0 13214 0
Current children cumulated CPU time (s) 22.28
Current children cumulated vsize (KiB) 53748

[startup+22.7012 s]
/proc/loadavg: 0.98 1.00 1.00 2/78 1130
/proc/meminfo: memFree=1672080/2055920 swapFree=4159716/4192956
[pid=1129] ppid=1127 vsize=0 CPUtime=22.68
/proc/1129/stat : 1129 (PBS4) R 1127 1129 487 0 -1 4194308 18453 0 0 0 2260 8 0 0 25 0 1 0 134006381 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/1129/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 22.68
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 22.7127
CPU time (s): 22.7035
CPU user time (s): 22.6076
CPU system time (s): 0.095985
CPU usage (%): 99.9596
Max. virtual memory (cumulated for all children) (KiB): 80236

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 22.6076
system time used= 0.095985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 18453
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= 72

runsolver used 0.028995 second user time and 0.056991 second system time

The end

Launcher Data (download as text)

Begin job on node38 on Thu Apr 19 21:33:17 UTC 2007

IDJOB= 362807
IDBENCH= 1653
IDSOLVER= 157
FILE ID= node38/362807-1177018397

PBS_JOBID= 4630571

Free space on /tmp= 66228 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-pilot87.opb
COMMAND LINE= /tmp/evaluation/362807-1177018397/PBS4 /tmp/evaluation/362807-1177018397/instance-362807-1177018397.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node38/convwatcher-362807-1177018397 -o ROOT/results/node38/conversion-362807-1177018397 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/362807-1177018397/instance-362807-1177018397.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node38/watcher-362807-1177018397 -o ROOT/results/node38/solver-362807-1177018397 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/362807-1177018397/PBS4 /tmp/evaluation/362807-1177018397/instance-362807-1177018397.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  e59c2905e997a0635cce57f2d16b8705

RANDOM SEED= 996171006

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node38.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:       1723952 kB
Buffers:         30824 kB
Cached:         214140 kB
SwapCached:       3100 kB
Active:         103948 kB
Inactive:       166112 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1723952 kB
SwapTotal:     4192956 kB
SwapFree:      4159716 kB
Dirty:           15500 kB
Writeback:           0 kB
Mapped:          33340 kB
Slab:            47136 kB
Committed_AS:  1538400 kB
PageTables:       2064 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= 66228 MiB

End job on node38 on Thu Apr 19 21:33:40 UTC 2007