Trace number 365020

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 2007-03-23OPT100 0.314951 0.321964

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/
primes-dimacs-cnf/normalized-aim-100-6_0-yes1-1.opb
MD5SUMddad9041bd4289151f7a18bb8ca7a5ec
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark100
Best CPU time to get the best result obtained on this benchmark0.010997
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 100
Optimality of the best value was proved YES
Number of variables200
Total number of constraints700
Number of constraints which are clauses697
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints3
Minimum length of a constraint2
Maximum length of a constraint3
Number of terms in the objective function 200
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 200
Number of bits of the sum of numbers in the objective function 8
Biggest number in a constraint 2
Number of bits of the biggest number in a constraint 2
Biggest sum of numbers in a constraint 200
Number of bits of the biggest sum of numbers8
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)

0.06/0.11	o 100
0.10/0.32	s OPTIMUM FOUND
0.10/0.32	v x2 x4 x5 x8 x10 x11 x14 x15 x17 x20 x21 x23 x26 x27 x29 x31 x34 x36 x37 x40 x42 x43 x46 x47 x50 x52 x53 x55 x57 x60 x62 x64 x66 x68 x70
0.10/0.32	v x72 x73 x76 x78 x79 x82 x84 x85 x88 x89 x92 x94 x96 x98 x100 x102 x103 x106 x107 x110 x111 x113 x116 x117 x120 x122 x123 x126 x127
0.10/0.32	v x130 x132 x134 x135 x138 x140 x141 x143 x145 x148 x149 x151 x153 x155 x157 x160 x162 x164 x166 x167 x169 x172 x173 x175 x177 x179
0.10/0.32	v x181 x183 x185 x188 x190 x191 x194 x195 x198 x200

Verifier Data (download as text)

OK	100

Conversion Script Data (download as text)

/tmp/evaluation/365020-1177045637/instance-365020-1177045637.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/node59/watcher-365020-1177045637 -o ROOT/results/node59/solver-365020-1177045637 -C 1800 -W 3600 -M 1800 --output-limit 1,15 pbclasp instance-365020-1177045637.opb /tmp/evaluation/365020-1177045637/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: 0.87 0.95 0.98 3/64 13866
/proc/meminfo: memFree=1769360/2055920 swapFree=4184568/4192956
[pid=13866] ppid=13864 vsize=12268 CPUtime=0
/proc/13866/stat : 13866 (pbclasp) R 13864 13866 13037 0 -1 4194304 395 0 0 0 0 0 0 0 18 0 1 0 152473287 12562432 361 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 217051468513 0 0 4224 0 0 0 0 17 1 0 0
/proc/13866/statm: 3067 362 275 3 0 167 0

[startup+0.0130671 s]
/proc/loadavg: 0.87 0.95 0.98 3/64 13866
/proc/meminfo: memFree=1769360/2055920 swapFree=4184568/4192956
[pid=13866] ppid=13864 vsize=12400 CPUtime=0
/proc/13866/stat : 13866 (pbclasp) S 13864 13866 13037 0 -1 4194304 497 0 0 0 0 0 0 0 16 0 1 0 152473287 12697600 450 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 217060520034 0 0 4224 16384 18446744071563648864 0 0 17 1 0 0
/proc/13866/statm: 3100 450 324 3 0 200 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 12400

[startup+0.101086 s]
/proc/loadavg: 0.87 0.95 0.98 3/64 13866
/proc/meminfo: memFree=1769360/2055920 swapFree=4184568/4192956
[pid=13866] ppid=13864 vsize=12400 CPUtime=0.06
/proc/13866/stat : 13866 (pbclasp) S 13864 13866 13037 0 -1 4194304 590 1588 0 0 0 0 5 1 16 0 1 0 152473287 12697600 475 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 217060523924 0 0 4230 16384 18446744071563356171 0 0 17 0 0 0
/proc/13866/statm: 3100 475 343 3 0 200 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 12400

[startup+0.301118 s]
/proc/loadavg: 0.87 0.95 0.98 3/64 13866
/proc/meminfo: memFree=1769360/2055920 swapFree=4184568/4192956
[pid=13866] ppid=13864 vsize=12400 CPUtime=0.1
/proc/13866/stat : 13866 (pbclasp) S 13864 13866 13037 0 -1 4194304 719 3345 0 0 0 0 9 1 16 0 1 0 152473287 12697600 477 18446744073709551615 4194304 4206940 548682069248 18446744073709551615 217060523924 0 0 4230 16384 18446744071563356171 0 0 17 1 0 0
/proc/13866/statm: 3100 477 343 3 0 200 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 12400

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

Child status: 0
Real time (s): 0.321964
CPU time (s): 0.314951
CPU user time (s): 0.274958
CPU system time (s): 0.039993
CPU usage (%): 97.8218
Max. virtual memory (cumulated for all children) (KiB): 12400

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.274958
system time used= 0.039993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7754
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= 128
involuntary context switches= 26

runsolver used 0.002999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node59 on Fri Apr 20 05:07:17 UTC 2007

IDJOB= 365020
IDBENCH= 2182
IDSOLVER= 158
FILE ID= node59/365020-1177045637

PBS_JOBID= 4640157

Free space on /tmp= 66331 MiB

SOLVER NAME= PB-clasp 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/primes-dimacs-cnf/normalized-aim-100-6_0-yes1-1.opb
COMMAND LINE= pbclasp instance-365020-1177045637.opb /tmp/evaluation/365020-1177045637/temp
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node59/convwatcher-365020-1177045637 -o ROOT/results/node59/conversion-365020-1177045637 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/365020-1177045637/instance-365020-1177045637.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node59/watcher-365020-1177045637 -o ROOT/results/node59/solver-365020-1177045637 -C 1800 -W 3600 -M 1800 --output-limit 1,15  pbclasp instance-365020-1177045637.opb /tmp/evaluation/365020-1177045637/temp

META MD5SUM SOLVER= 814f1745fa20958d8b352781cfa0403e
MD5SUM BENCH=  ddad9041bd4289151f7a18bb8ca7a5ec

RANDOM SEED= 723708151

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node59.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		: 3000.268
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		: 3000.268
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:       1769840 kB
Buffers:         37788 kB
Cached:         185608 kB
SwapCached:       2228 kB
Active:          90600 kB
Inactive:       143552 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1769840 kB
SwapTotal:     4192956 kB
SwapFree:      4184568 kB
Dirty:            1268 kB
Writeback:           0 kB
Mapped:          16716 kB
Slab:            37968 kB
Committed_AS:  2113576 kB
PageTables:       1472 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= 66331 MiB

End job on node59 on Fri Apr 20 05:07:17 UTC 2007