Trace number 431532

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
PB-clasp 2007-04-10OPT3 0.260959 0.344465

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
roussel/factor-mod-B/factor-mod-size=6-P0=37-P1=23-P2=5-B.opb
MD5SUMbb953622d436623e8cc95a70e227bd07
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark3
Best CPU time to get the best result obtained on this benchmark0.026995
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3
Optimality of the best value was proved YES
Number of variables36
Total number of constraints5
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 constraints5
Minimum length of a constraint6
Maximum length of a constraint48
Number of terms in the objective function 6
Biggest coefficient in the objective function 32
Number of bits for the biggest coefficient in the objective function 6
Sum of the numbers in the objective function 63
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 2048
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 8064
Number of bits of the biggest sum of numbers13
Number of products (including duplicates)72
Sum of products size (including duplicates)144
Number of different products72
Sum of products size144

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data (download as text)

0.01/0.06	o 33
0.05/0.11	o 25
0.10/0.23	o 5
0.10/0.25	o 3
0.16/0.34	s OPTIMUM FOUND
0.16/0.34	v x1 x2 x7 x10 x11 x12 x13 x15 x16 x17 x19 x20 x22 x24 x26 x31 x32 x35 x37 x38 x55 x56 x61 x62 x67 x68 x73 x74 x76 x78 x85 x86 x88 x90 x91
0.16/0.34	v x92 x94 x96 x97 x98 x100 x102

Verifier Data (download as text)

OK	3

Conversion Script Data (download as text)

Linearizing /tmp/evaluation/431532-1178007112/instance-431532-1178007112.opb

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node62/watcher-431532-1178007112 -o ROOT/results/node62/solver-431532-1178007112 -C 1800 -W 3600 -M 1800 --output-limit 1,15 pbclasp instance-431532-1178007112.opb /tmp/evaluation/431532-1178007112/temp 

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: 0.78 0.94 0.97 3/64 1499
/proc/meminfo: memFree=1822008/2055920 swapFree=4184544/4192956
[pid=1499] ppid=1497 vsize=12268 CPUtime=0
/proc/1499/stat : 1499 (pbclasp) R 1497 1499 1348 0 -1 4194304 413 0 0 0 0 0 0 0 18 0 1 0 119287166 12562432 380 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 236437541601 0 0 4224 0 0 0 0 17 0 0 0
/proc/1499/statm: 3067 381 286 3 0 167 0

[startup+0.051194 s]
/proc/loadavg: 0.78 0.94 0.97 3/64 1499
/proc/meminfo: memFree=1822008/2055920 swapFree=4184544/4192956
[pid=1499] ppid=1497 vsize=12400 CPUtime=0.01
/proc/1499/stat : 1499 (pbclasp) S 1497 1499 1348 0 -1 4194304 569 1590 0 0 0 0 1 0 16 0 1 0 119287166 12697600 458 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 236446597012 0 0 4230 16384 18446744071563356171 0 0 17 0 0 0
/proc/1499/statm: 3100 458 342 3 0 200 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 12400

[startup+0.101199 s]
/proc/loadavg: 0.78 0.94 0.97 3/64 1499
/proc/meminfo: memFree=1822008/2055920 swapFree=4184544/4192956
[pid=1499] ppid=1497 vsize=12400 CPUtime=0.05
/proc/1499/stat : 1499 (pbclasp) S 1497 1499 1348 0 -1 4194304 683 3304 0 0 0 0 3 2 16 0 1 0 119287166 12697600 460 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 236446597012 0 0 4230 16384 18446744071563356171 0 0 17 1 0 0
/proc/1499/statm: 3100 460 342 3 0 200 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 12400

[startup+0.301223 s]
/proc/loadavg: 0.78 0.94 0.97 3/64 1499
/proc/meminfo: memFree=1822008/2055920 swapFree=4184544/4192956
[pid=1499] ppid=1497 vsize=12400 CPUtime=0.16
/proc/1499/stat : 1499 (pbclasp) S 1497 1499 1348 0 -1 4194304 1026 8446 0 0 0 0 11 5 17 0 1 0 119287166 12697600 460 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 236446597012 0 0 4230 16384 18446744071563356171 0 0 17 0 0 0
/proc/1499/statm: 3100 460 342 3 0 200 0
Current children cumulated CPU time (s) 0.16
Current children cumulated vsize (KiB) 12400

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

Child status: 0
Real time (s): 0.344465
CPU time (s): 0.260959
CPU user time (s): 0.19197
CPU system time (s): 0.068989
CPU usage (%): 75.7578
Max. virtual memory (cumulated for all children) (KiB): 12400

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.19197
system time used= 0.068989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10490
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= 285
involuntary context switches= 48

runsolver used 0.004999 second user time and 0.002999 second system time

The end

Launcher Data (download as text)

Begin job on node62 on Tue May  1 08:11:52 UTC 2007

IDJOB= 431532
IDBENCH= 48058
IDSOLVER= 167
FILE ID= node62/431532-1178007112

PBS_JOBID= 4728321

Free space on /tmp= 66564 MiB

SOLVER NAME= PB-clasp 2007-03-23
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=6-P0=37-P1=23-P2=5-B.opb
COMMAND LINE= pbclasp instance-431532-1178007112.opb /tmp/evaluation/431532-1178007112/temp
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node62/convwatcher-431532-1178007112 -o ROOT/results/node62/conversion-431532-1178007112 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/431532-1178007112/instance-431532-1178007112.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node62/watcher-431532-1178007112 -o ROOT/results/node62/solver-431532-1178007112 -C 1800 -W 3600 -M 1800 --output-limit 1,15  pbclasp instance-431532-1178007112.opb /tmp/evaluation/431532-1178007112/temp

META MD5SUM SOLVER= 1e5f480786d97be718f2223f2ffb5f36
MD5SUM BENCH=  bb953622d436623e8cc95a70e227bd07

RANDOM SEED= 762334904

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node62.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		: 3000.216
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		: 3000.216
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:       1822480 kB
Buffers:         14548 kB
Cached:         146900 kB
SwapCached:       2296 kB
Active:          71276 kB
Inactive:        99508 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1822480 kB
SwapTotal:     4192956 kB
SwapFree:      4184544 kB
Dirty:             736 kB
Writeback:           0 kB
Mapped:          15784 kB
Slab:            48636 kB
Committed_AS:  1341428 kB
PageTables:       1460 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= 66564 MiB

End job on node62 on Tue May  1 08:11:52 UTC 2007