Trace number 362997

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
Pueblo 1.4UNSAT 2.75758 2.75856

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-bnl1.opb
MD5SUM86d589e9c21b90dfd700c7c422b09b8c
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 benchmark2.75758
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables35250
Total number of constraints624
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 constraints624
Minimum length of a constraint30
Maximum length of a constraint2280
Number of terms in the objective function 29490
Biggest coefficient in the objective function 6378
Number of bits for the biggest coefficient in the objective function 13
Sum of the numbers in the objective function 548620
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 548620
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 Pueblo version 1.4 (September 2005)
0.00/0.00	c Developed @ University of Michigan, Ann Arbor, MI
0.00/0.00	c  by Hossein Sheini
0.89/1.00	c starting to Solve
0.89/1.00	c #variables read: 35250 - #constraints read: 856
2.69/2.75	c total time              : 2.75 s
2.69/2.75	s UNSATISFIABLE

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/362997-1177021670/instance-362997-1177021670.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/node72/watcher-362997-1177021670 -o ROOT/results/node72/solver-362997-1177021670 -C 1800 -W 3600 -M 1800 --output-limit 1,15 Pueblo /tmp/evaluation/362997-1177021670/instance-362997-1177021670.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 1.00 3/77 3814
/proc/meminfo: memFree=1841008/2055920 swapFree=4157116/4192956
[pid=3814] ppid=3812 vsize=2552 CPUtime=0
/proc/3814/stat : 3814 (Pueblo) R 3812 3814 2492 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 178205479 2613248 228 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 3002071 0 0 4096 0 0 0 0 17 1 0 0
/proc/3814/statm: 638 228 193 16 0 77 0

[startup+0.025298 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 3814
/proc/meminfo: memFree=1841008/2055920 swapFree=4157116/4192956
[pid=3814] ppid=3812 vsize=3084 CPUtime=0.02
/proc/3814/stat : 3814 (Pueblo) R 3812 3814 2492 0 -1 4194304 406 0 0 0 2 0 0 0 18 0 1 0 178205479 3158016 376 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 2971259 0 0 4096 0 0 0 0 17 1 0 0
/proc/3814/statm: 771 376 193 16 0 210 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 3084

[startup+0.101305 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 3814
/proc/meminfo: memFree=1841008/2055920 swapFree=4157116/4192956
[pid=3814] ppid=3812 vsize=5216 CPUtime=0.09
/proc/3814/stat : 3814 (Pueblo) R 3812 3814 2492 0 -1 4194304 924 0 0 0 9 0 0 0 18 0 1 0 178205479 5341184 894 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 3002071 0 0 4096 0 0 0 0 17 1 0 0
/proc/3814/statm: 1304 894 193 16 0 743 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5216

[startup+0.301323 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 3814
/proc/meminfo: memFree=1841008/2055920 swapFree=4157116/4192956
[pid=3814] ppid=3812 vsize=6812 CPUtime=0.29
/proc/3814/stat : 3814 (Pueblo) R 3812 3814 2492 0 -1 4194304 1339 0 0 0 29 0 0 0 19 0 1 0 178205479 6975488 1309 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/3814/statm: 1703 1309 199 16 0 1142 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6812

[startup+0.701359 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 3814
/proc/meminfo: memFree=1841008/2055920 swapFree=4157116/4192956
[pid=3814] ppid=3812 vsize=15848 CPUtime=0.69
/proc/3814/stat : 3814 (Pueblo) R 3812 3814 2492 0 -1 4194304 3033 0 0 0 68 1 0 0 22 0 1 0 178205479 16228352 2993 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 134533487 0 0 4096 0 0 0 0 17 1 0 0
/proc/3814/statm: 3962 2993 203 16 0 3401 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 15848

[startup+1.50143 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 3815
/proc/meminfo: memFree=1821736/2055920 swapFree=4157116/4192956
[pid=3814] ppid=3812 vsize=23604 CPUtime=1.49
/proc/3814/stat : 3814 (Pueblo) R 3812 3814 2492 0 -1 4194304 33275 0 0 0 138 11 0 0 25 0 1 0 178205479 24170496 4932 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 134527815 0 0 4096 0 0 0 0 17 1 0 0
/proc/3814/statm: 5901 4932 206 16 0 5340 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 23604

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

[startup+2.30151 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 3815
/proc/meminfo: memFree=1821736/2055920 swapFree=4157116/4192956
[pid=3814] ppid=3812 vsize=23604 CPUtime=2.29
/proc/3814/stat : 3814 (Pueblo) R 3812 3814 2492 0 -1 4194304 33275 0 0 0 218 11 0 0 25 0 1 0 178205479 24170496 4932 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 134528239 0 0 4096 0 0 0 0 17 1 0 0
/proc/3814/statm: 5901 4932 206 16 0 5340 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 23604

[startup+2.70154 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 3815
/proc/meminfo: memFree=1821736/2055920 swapFree=4157116/4192956
[pid=3814] ppid=3812 vsize=23604 CPUtime=2.69
/proc/3814/stat : 3814 (Pueblo) R 3812 3814 2492 0 -1 4194304 33275 0 0 0 258 11 0 0 25 0 1 0 178205479 24170496 4932 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 134527750 0 0 4096 0 0 0 0 17 1 0 0
/proc/3814/statm: 5901 4932 206 16 0 5340 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 23604

Child status: 20
Real time (s): 2.75856
CPU time (s): 2.75758
CPU user time (s): 2.6396
CPU system time (s): 0.117982
CPU usage (%): 99.9644
Max. virtual memory (cumulated for all children) (KiB): 23604

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.6396
system time used= 0.117982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 33281
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= 13
involuntary context switches= 12

runsolver used 0.004999 second user time and 0.012998 second system time

The end

Launcher Data (download as text)

Begin job on node72 on Thu Apr 19 22:27:50 UTC 2007

IDJOB= 362997
IDBENCH= 1704
IDSOLVER= 165
FILE ID= node72/362997-1177021670

PBS_JOBID= 4630549

Free space on /tmp= 66404 MiB

SOLVER NAME= Pueblo 1.4
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-bnl1.opb
COMMAND LINE= Pueblo /tmp/evaluation/362997-1177021670/instance-362997-1177021670.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node72/convwatcher-362997-1177021670 -o ROOT/results/node72/conversion-362997-1177021670 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/362997-1177021670/instance-362997-1177021670.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node72/watcher-362997-1177021670 -o ROOT/results/node72/solver-362997-1177021670 -C 1800 -W 3600 -M 1800 --output-limit 1,15  Pueblo /tmp/evaluation/362997-1177021670/instance-362997-1177021670.opb

META MD5SUM SOLVER= 9ebec3e8d890fdeefad01654ad9b68b7
MD5SUM BENCH=  86d589e9c21b90dfd700c7c422b09b8c

RANDOM SEED= 34125362

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node72.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		: 3000.222
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	: 5931.00
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		: 3000.222
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:       1841416 kB
Buffers:         27720 kB
Cached:         114168 kB
SwapCached:      16688 kB
Active:          70824 kB
Inactive:        94268 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1841416 kB
SwapTotal:     4192956 kB
SwapFree:      4157116 kB
Dirty:            4344 kB
Writeback:           0 kB
Mapped:          30412 kB
Slab:            34916 kB
Committed_AS:  2778996 kB
PageTables:       1788 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= 66404 MiB

End job on node72 on Thu Apr 19 22:27:53 UTC 2007