Trace number 36663

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 1.4OPT30 91.3161 91.3522

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/
miplib/normalized-mps-v2-20-10-stein45.opb
MD5SUM5084bd7d25dcb1d535d550da78b2db16
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark30
Best CPU time to get the best result obtained on this benchmark22.0666
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 30
Optimality of the best value was proved YES
Number of variables45
Total number of constraints331
Number of constraints which are clauses330
Number of constraints which are cardinality constraints (but not clauses)1
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint45
Number of terms in the objective function 45
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 45
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 22
Number of bits of the biggest number in a constraint 5
Biggest sum of numbers in a constraint 67
Number of bits of the biggest sum of numbers7
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

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)

0.00	c Pueblo version 1.4 (September 2005)
0.00	c Developed @ University of Michigan, Ann Arbor, MI
0.00	c  by Hossein Sheini
0.01	c starting to Solve
0.01	c #variables read: 45 - #constraints read: 332
0.01	o 33
0.01	o 32
0.02	o 31
0.03	o 30
91.35	c optimum objective found = 30
91.35	c total time              : 91.32 s
91.35	s OPTIMUM FOUND
91.35	v x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 -x11 -x12 -x13 -x14 -x15 -x16 -x17 -x18 -x19 -x20 x21 x22 x23 x24 x25 x26 x27 x28 x29 x30 -x31 -x32 -x33
91.35	v -x34 -x35 x36 x37 x38 x39 x40 x41 x42 x43 x44 x45

Verifier Data (download as text)

OK	30

Watcher Data (download as text)

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1830 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
runsolver version 3.0.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node67/watcher-36663-1149369014 -o ROOT/results/node67/solver-36663-1149369014 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user8/Pueblo ROOT/tmp/node67/36663-1149369014/instance-36663-1149369014.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.91 0.97 0.99 2/64 31376
/proc/meminfo: memFree=1322320/2055920 swapFree=4181736/4192956
[pid=31376] ppid=31374 vsize=1136 CPUtime=0
/proc/31376/stat : 31376 (Pueblo) R 31374 31376 31330 0 -1 4194304 58 0 0 0 0 0 0 0 20 0 1 0 202570780 1163264 42 18446744073709551615 134512640 134579096 4294956688 18446744073709551615 6894599 0 0 4096 0 0 0 0 17 1 0 0
/proc/31376/statm: 284 43 33 16 0 8 0

[startup+10.0022 s]
/proc/loadavg: 0.93 0.97 0.99 2/64 31376
/proc/meminfo: memFree=1321840/2055920 swapFree=4181736/4192956
[pid=31376] ppid=31374 vsize=2948 CPUtime=9.99
/proc/31376/stat : 31376 (Pueblo) R 31374 31376 31330 0 -1 4194304 360 0 0 0 995 4 0 0 25 0 1 0 202570780 3018752 331 18446744073709551615 134512640 134579096 4294956688 18446744073709551615 134527715 0 0 4096 0 0 0 0 17 1 0 0
/proc/31376/statm: 737 331 205 16 0 178 0
Current children cumulated CPU time (s) 9.99
Current children cumulated vsize (Kb) 2948

[startup+20.0091 s]
/proc/loadavg: 0.94 0.97 0.99 2/64 31376
/proc/meminfo: memFree=1321776/2055920 swapFree=4181736/4192956
[pid=31376] ppid=31374 vsize=2940 CPUtime=19.99
/proc/31376/stat : 31376 (Pueblo) R 31374 31376 31330 0 -1 4194304 368 0 0 0 1992 7 0 0 25 0 1 0 202570780 3010560 339 18446744073709551615 134512640 134579096 4294956688 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/31376/statm: 735 339 205 16 0 176 0
Current children cumulated CPU time (s) 19.99
Current children cumulated vsize (Kb) 2940

[startup+30.016 s]
/proc/loadavg: 0.95 0.97 0.99 2/64 31376
/proc/meminfo: memFree=1321712/2055920 swapFree=4181736/4192956
[pid=31376] ppid=31374 vsize=2940 CPUtime=29.99
/proc/31376/stat : 31376 (Pueblo) R 31374 31376 31330 0 -1 4194304 376 0 0 0 2988 11 0 0 25 0 1 0 202570780 3010560 347 18446744073709551615 134512640 134579096 4294956688 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/31376/statm: 735 347 205 16 0 176 0
Current children cumulated CPU time (s) 29.99
Current children cumulated vsize (Kb) 2940

[startup+40.0218 s]
/proc/loadavg: 0.95 0.97 0.99 2/64 31376
/proc/meminfo: memFree=1321712/2055920 swapFree=4181736/4192956
[pid=31376] ppid=31374 vsize=3056 CPUtime=40
/proc/31376/stat : 31376 (Pueblo) R 31374 31376 31330 0 -1 4194304 390 0 0 0 3984 16 0 0 25 0 1 0 202570780 3129344 361 18446744073709551615 134512640 134579096 4294956688 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/31376/statm: 764 361 205 16 0 205 0
Current children cumulated CPU time (s) 40
Current children cumulated vsize (Kb) 3056

[startup+50.0277 s]
/proc/loadavg: 0.96 0.97 0.99 2/64 31376
/proc/meminfo: memFree=1321648/2055920 swapFree=4181736/4192956
[pid=31376] ppid=31374 vsize=3056 CPUtime=50
/proc/31376/stat : 31376 (Pueblo) R 31374 31376 31330 0 -1 4194304 392 0 0 0 4980 20 0 0 25 0 1 0 202570780 3129344 363 18446744073709551615 134512640 134579096 4294956688 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/31376/statm: 764 363 205 16 0 205 0
Current children cumulated CPU time (s) 50
Current children cumulated vsize (Kb) 3056

[startup+60.0336 s]
/proc/loadavg: 0.97 0.97 0.99 2/64 31376
/proc/meminfo: memFree=1321648/2055920 swapFree=4181736/4192956
[pid=31376] ppid=31374 vsize=3056 CPUtime=60.01
/proc/31376/stat : 31376 (Pueblo) R 31374 31376 31330 0 -1 4194304 402 0 0 0 5977 24 0 0 25 0 1 0 202570780 3129344 373 18446744073709551615 134512640 134579096 4294956688 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/31376/statm: 764 373 205 16 0 205 0
Current children cumulated CPU time (s) 60.01
Current children cumulated vsize (Kb) 3056

[startup+70.0394 s]
/proc/loadavg: 0.97 0.97 0.99 2/64 31376
/proc/meminfo: memFree=1321648/2055920 swapFree=4181736/4192956
[pid=31376] ppid=31374 vsize=3056 CPUtime=70.01
/proc/31376/stat : 31376 (Pueblo) R 31374 31376 31330 0 -1 4194304 403 0 0 0 6973 28 0 0 25 0 1 0 202570780 3129344 374 18446744073709551615 134512640 134579096 4294956688 18446744073709551615 134527815 0 0 4096 0 0 0 0 17 1 0 0
/proc/31376/statm: 764 374 205 16 0 205 0
Current children cumulated CPU time (s) 70.01
Current children cumulated vsize (Kb) 3056

[startup+80.0453 s]
/proc/loadavg: 0.98 0.97 0.99 2/64 31376
/proc/meminfo: memFree=1321584/2055920 swapFree=4181736/4192956
[pid=31376] ppid=31374 vsize=3056 CPUtime=80
/proc/31376/stat : 31376 (Pueblo) R 31374 31376 31330 0 -1 4194304 405 0 0 0 7968 32 0 0 25 0 1 0 202570780 3129344 376 18446744073709551615 134512640 134579096 4294956688 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/31376/statm: 764 376 205 16 0 205 0
Current children cumulated CPU time (s) 80
Current children cumulated vsize (Kb) 3056

[startup+90.0512 s]
/proc/loadavg: 0.98 0.97 0.99 2/64 31376
/proc/meminfo: memFree=1321584/2055920 swapFree=4181736/4192956
[pid=31376] ppid=31374 vsize=3056 CPUtime=90.01
/proc/31376/stat : 31376 (Pueblo) R 31374 31376 31330 0 -1 4194304 414 0 0 0 8965 36 0 0 25 0 1 0 202570780 3129344 385 18446744073709551615 134512640 134579096 4294956688 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/31376/statm: 764 385 205 16 0 205 0
Current children cumulated CPU time (s) 90.01
Current children cumulated vsize (Kb) 3056

Child status: 30
Real time (s): 91.3522
CPU time (s): 91.3161
CPU user time (s): 90.9552
CPU system time (s): 0.360945
CPU usage (%): 99.9605
Max. virtual memory (cumulated for all children) (Kb): 3056

Launcher Data (download as text)

Begin job on node67 on Sat Jun  3 21:10:14 UTC 2006


FILE ID= 36663-1149369014

PBS_JOBID= 312080

BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-stein45.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user8/Pueblo ROOT/tmp/node67/36663-1149369014/instance-36663-1149369014.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node67/watcher-36663-1149369014 -o ROOT/results/node67/solver-36663-1149369014 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user8/Pueblo ROOT/tmp/node67/36663-1149369014/instance-36663-1149369014.opb

MD5SUM SOLVER= 80c24de60e85bc4a9ec18ca4764e7dff
MD5SUM BENCH=  5084bd7d25dcb1d535d550da78b2db16

RANDOM SEED= 459476399


/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		: 3000.264
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		: 3000.264
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:       1322528 kB
Buffers:         21104 kB
Cached:         646016 kB
SwapCached:       2748 kB
Active:          45412 kB
Inactive:       630300 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1322528 kB
SwapTotal:     4192956 kB
SwapFree:      4181736 kB
Dirty:              92 kB
Writeback:           0 kB
Mapped:          14724 kB
Slab:            43600 kB
Committed_AS:   350640 kB
PageTables:       1472 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node67 on Sat Jun  3 21:11:45 UTC 2006