Trace number 362579

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 2007-04-10UNSAT 1.65675 1.65741

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-reduced-mps-v2-20-10-neos11.opb
MD5SUMd62742ce7b3ddc885e86cc367d20ba86
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 benchmark0.670897
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables8600
Total number of constraints2806
Number of constraints which are clauses600
Number of constraints which are cardinality constraints (but not clauses)120
Number of constraints which are nor clauses,nor cardinality constraints2086
Minimum length of a constraint2
Maximum length of a constraint450
Number of terms in the objective function 5400
Biggest coefficient in the objective function 1457
Number of bits for the biggest coefficient in the objective function 11
Sum of the numbers in the objective function 528660
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 262144
Number of bits of the biggest number in a constraint 19
Biggest sum of numbers in a constraint 528660
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)

1.06/1.65	s UNSATISFIABLE

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/362579-1177015143/instance-362579-1177015143.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/node20/watcher-362579-1177015143 -o ROOT/results/node20/solver-362579-1177015143 -C 1800 -W 3600 -M 1800 --output-limit 1,15 pbclasp instance-362579-1177015143.opb /tmp/evaluation/362579-1177015143/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: 0.88 0.94 0.97 3/77 2553
/proc/meminfo: memFree=1869552/2055920 swapFree=4155228/4192956
[pid=2553] ppid=2551 vsize=12268 CPUtime=0
/proc/2553/stat : 2553 (pbclasp) R 2551 2553 2396 0 -1 4194304 415 0 0 0 0 0 0 0 18 0 1 0 149431638 12562432 381 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 273952445153 0 0 4224 0 0 0 0 17 0 0 0
/proc/2553/statm: 3067 382 286 3 0 167 0

[startup+0.0371301 s]
/proc/loadavg: 0.88 0.94 0.97 3/77 2553
/proc/meminfo: memFree=1869552/2055920 swapFree=4155228/4192956
[pid=2553] ppid=2551 vsize=13080 CPUtime=0.03
/proc/2553/stat : 2553 (pbclasp) R 2551 2553 2396 0 -1 4194304 648 0 0 0 3 0 0 0 18 0 1 0 149431638 13393920 614 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 273952445153 0 0 4224 16384 0 0 0 17 0 0 0
/proc/2553/statm: 3270 614 320 3 0 370 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13080

[startup+0.101181 s]
/proc/loadavg: 0.88 0.94 0.97 3/77 2553
/proc/meminfo: memFree=1869552/2055920 swapFree=4155228/4192956
[pid=2553] ppid=2551 vsize=13212 CPUtime=0.09
/proc/2553/stat : 2553 (pbclasp) R 2551 2553 2396 0 -1 4194304 673 0 0 0 9 0 0 0 18 0 1 0 149431638 13529088 639 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 273966632706 0 0 4224 16384 0 0 0 17 0 0 0
/proc/2553/statm: 3303 639 320 3 0 403 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13212

[startup+0.301219 s]
/proc/loadavg: 0.88 0.94 0.97 3/77 2553
/proc/meminfo: memFree=1869552/2055920 swapFree=4155228/4192956
[pid=2553] ppid=2551 vsize=13924 CPUtime=0.29
/proc/2553/stat : 2553 (pbclasp) R 2551 2553 2396 0 -1 4194304 838 0 0 0 29 0 0 0 19 0 1 0 149431638 14258176 804 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 273966632718 0 0 4224 16384 0 0 0 17 0 0 0
/proc/2553/statm: 3481 804 320 3 0 581 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13924

[startup+0.701301 s]
/proc/loadavg: 0.88 0.94 0.97 3/77 2553
/proc/meminfo: memFree=1869552/2055920 swapFree=4155228/4192956
[pid=2553] ppid=2551 vsize=14056 CPUtime=0.31
/proc/2553/stat : 2553 (pbclasp) S 2551 2553 2396 0 -1 4194304 893 0 0 0 31 0 0 0 22 0 1 0 149431638 14393344 846 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 273961496674 0 0 4224 16384 18446744071563648864 0 0 17 0 0 0
/proc/2553/statm: 3514 846 324 3 0 614 0
Current children cumulated CPU time (s) 0.31
Current children cumulated vsize (KiB) 14056

[startup+1.50243 s]
/proc/loadavg: 0.88 0.94 0.97 2/80 2556
/proc/meminfo: memFree=1865880/2055920 swapFree=4155228/4192956
[pid=2553] ppid=2551 vsize=14452 CPUtime=1.06
/proc/2553/stat : 2553 (pbclasp) S 2551 2553 2396 0 -1 4194304 1231 1629 0 0 33 0 72 1 17 0 1 0 149431638 14798848 985 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 273961500564 0 0 4230 16384 18446744071563356171 0 0 17 0 0 0
/proc/2553/statm: 3613 985 343 3 0 713 0
Current children cumulated CPU time (s) 1.06
Current children cumulated vsize (KiB) 14452

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

[startup+1.60245 s]
/proc/loadavg: 0.88 0.94 0.97 2/80 2556
/proc/meminfo: memFree=1865880/2055920 swapFree=4155228/4192956
[pid=2553] ppid=2551 vsize=14452 CPUtime=1.06
/proc/2553/stat : 2553 (pbclasp) S 2551 2553 2396 0 -1 4194304 1231 1629 0 0 33 0 72 1 17 0 1 0 149431638 14798848 985 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 273961500564 0 0 4230 16384 18446744071563356171 0 0 17 0 0 0
/proc/2553/statm: 3613 985 343 3 0 713 0
Current children cumulated CPU time (s) 1.06
Current children cumulated vsize (KiB) 14452

Child status: 0
Real time (s): 1.65741
CPU time (s): 1.65675
CPU user time (s): 1.60876
CPU system time (s): 0.047992
CPU usage (%): 99.9598
Max. virtual memory (cumulated for all children) (KiB): 31940

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.60875
system time used= 0.047992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5665
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= 275
involuntary context switches= 33

runsolver used 0.002999 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node20 on Thu Apr 19 20:39:03 UTC 2007

IDJOB= 362579
IDBENCH= 1576
IDSOLVER= 167
FILE ID= node20/362579-1177015143

PBS_JOBID= 4630581

Free space on /tmp= 66456 MiB

SOLVER NAME= PB-clasp 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/plato.asu.edu/pub/milp/normalized-reduced-mps-v2-20-10-neos11.opb
COMMAND LINE= pbclasp instance-362579-1177015143.opb /tmp/evaluation/362579-1177015143/temp
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node20/convwatcher-362579-1177015143 -o ROOT/results/node20/conversion-362579-1177015143 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/362579-1177015143/instance-362579-1177015143.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node20/watcher-362579-1177015143 -o ROOT/results/node20/solver-362579-1177015143 -C 1800 -W 3600 -M 1800 --output-limit 1,15  pbclasp instance-362579-1177015143.opb /tmp/evaluation/362579-1177015143/temp

META MD5SUM SOLVER= 1e5f480786d97be718f2223f2ffb5f36
MD5SUM BENCH=  d62742ce7b3ddc885e86cc367d20ba86

RANDOM SEED= 236759204

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node20.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		: 3000.265
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		: 3000.265
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:       1870024 kB
Buffers:         24020 kB
Cached:          78980 kB
SwapCached:      16068 kB
Active:          55404 kB
Inactive:        70420 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1870024 kB
SwapTotal:     4192956 kB
SwapFree:      4155228 kB
Dirty:            1492 kB
Writeback:           0 kB
Mapped:          29852 kB
Slab:            45616 kB
Committed_AS:  1905152 kB
PageTables:       1744 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= 66454 MiB

End job on node20 on Thu Apr 19 20:39:05 UTC 2007