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 in four parts:
  1. 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 provide some useful information on the computer.
  2. 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 !
  3. 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 1200 seconds. 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 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
    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.
  4. 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.

General information on the benchmark

Namemps-v2-20-10/plato.asu.edu/pub/unibo/normalized-mps-v2-20-10-trento1.opb
MD5SUMe84e1f1ad995b93190fbcfcc22f676bd
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 44575
Biggest coefficient in the objective function 536870912000000000000
Number of bits for the biggest coefficient in the objective function 69
Sum of the numbers in the objective function 3578049115531220877312
Number of bits of the sum of numbers in the objective function 72
Biggest number in a constraint 536870912000000000000
Number of bits of the biggest number in a constraint 69
Biggest sum of numbers in a constraint 3578151515531220877312
Number of bits of the biggest sum of numbers72
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables44575
Total number of constraints7680
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)6416
Number of constraints which are nor clauses,nor cardinality constraints1264
Minimum length of a constraint1
Maximum length of a constraint44575

Trace number 6404

Launcher Data

LAUNCH ON wulflinc13 THE 2005-09-20 06:35:52 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=4291 boxname=wulflinc13 idbench=775 idsolver=4 numberseed=0
MD5SUM SOLVER: 21c3ffd7205c96d5f0784fd273b92938  /oldhome/oroussel/solvers/PBS4
MD5SUM BENCH:  e84e1f1ad995b93190fbcfcc22f676bd  /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-trento1.opb
REAL COMMAND:  PBS4 /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-trento1.opb
IDLAUNCH: 4291
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.242
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.242
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        887860 kB
Buffers:         33252 kB
Cached:          85728 kB
SwapCached:        700 kB
Active:          51516 kB
Inactive:        70112 kB
HighTotal:      131008 kB
HighFree:        41328 kB
LowTotal:       903652 kB
LowFree:        846532 kB
SwapTotal:     2097136 kB
SwapFree:      2095936 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5744 kB
Slab:            19404 kB
Committed_AS:    64164 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-20 06:40:05 (client local time) WITH STATUS 20 IN 251.765 SECONDS
stats: 4291 7 251.765 20

Solver Data

c PBS v4 by Bashar Al-Rawi & Fadi Aloul
c Solving /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-trento1.opb ......
s UNSATISFIABLE
c Done, CPU Time=0.101985

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 18 0 0 0 0 0 0 0 22 0 1 0 1798214867 978944 2 4294967295 134512640 135450776 3221224560 3221224560 134512960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/23071/statm): 239 2 232 232 0 7 0
[pid=23071] vsize: 956
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-trento1.opb
open syscall for file /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-trento1.opb

[startup+10.0033 s]
Raw data (loadavg): 0.94 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 2381 0 0 0 991 8 0 0 25 0 1 0 1798214867 10436608 2266 4294967295 134512640 135450776 3221224560 3221223072 134599227 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 2548 2266 232 232 0 2316 0
[pid=23071] vsize: 10192
Current children cumulated CPU time (s) 9.99
Current children cumulated vsize (Kb) 10192

[startup+20.004 s]
Raw data (loadavg): 0.95 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 2381 0 0 0 1991 8 0 0 25 0 1 0 1798214867 10436608 2266 4294967295 134512640 135450776 3221224560 3221223072 134599243 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 2548 2266 232 232 0 2316 0
[pid=23071] vsize: 10192
Current children cumulated CPU time (s) 19.99
Current children cumulated vsize (Kb) 10192

[startup+30.0037 s]
Raw data (loadavg): 0.95 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 2381 0 0 0 2991 8 0 0 25 0 1 0 1798214867 10436608 2266 4294967295 134512640 135450776 3221224560 3221223072 134599243 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 2548 2266 232 232 0 2316 0
[pid=23071] vsize: 10192
Current children cumulated CPU time (s) 29.99
Current children cumulated vsize (Kb) 10192

[startup+40.0043 s]
Raw data (loadavg): 0.96 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 2556 0 0 0 3991 8 0 0 25 0 1 0 1798214867 11153408 2441 4294967295 134512640 135450776 3221224560 3221223072 134600412 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 2723 2441 232 232 0 2491 0
[pid=23071] vsize: 10892
Current children cumulated CPU time (s) 39.99
Current children cumulated vsize (Kb) 10892

[startup+50.004 s]
Raw data (loadavg): 0.97 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 2556 0 0 0 4991 8 0 0 25 0 1 0 1798214867 11153408 2441 4294967295 134512640 135450776 3221224560 3221223072 134600511 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 2723 2441 232 232 0 2491 0
[pid=23071] vsize: 10892
Current children cumulated CPU time (s) 49.99
Current children cumulated vsize (Kb) 10892

[startup+60.0046 s]
Raw data (loadavg): 0.97 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 2556 0 0 0 5991 8 0 0 25 0 1 0 1798214867 11153408 2441 4294967295 134512640 135450776 3221224560 3221223072 134600412 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 2723 2441 232 232 0 2491 0
[pid=23071] vsize: 10892
Current children cumulated CPU time (s) 59.99
Current children cumulated vsize (Kb) 10892

[startup+70.0043 s]
Raw data (loadavg): 0.97 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 2556 0 0 0 6991 8 0 0 25 0 1 0 1798214867 11153408 2441 4294967295 134512640 135450776 3221224560 3221223072 134600421 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 2723 2441 232 232 0 2491 0
[pid=23071] vsize: 10892
Current children cumulated CPU time (s) 69.99
Current children cumulated vsize (Kb) 10892

[startup+80.004 s]
Raw data (loadavg): 0.98 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 2556 0 0 0 7992 8 0 0 25 0 1 0 1798214867 11153408 2441 4294967295 134512640 135450776 3221224560 3221223072 134600511 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 2723 2441 232 232 0 2491 0
[pid=23071] vsize: 10892
Current children cumulated CPU time (s) 80
Current children cumulated vsize (Kb) 10892

[startup+90.0046 s]
Raw data (loadavg): 0.98 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 2556 0 0 0 8992 8 0 0 25 0 1 0 1798214867 11153408 2441 4294967295 134512640 135450776 3221224560 3221223072 134600412 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 2723 2441 232 232 0 2491 0
[pid=23071] vsize: 10892
Current children cumulated CPU time (s) 90
Current children cumulated vsize (Kb) 10892

[startup+100.004 s]
Raw data (loadavg): 0.98 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 2556 0 0 0 9992 8 0 0 25 0 1 0 1798214867 11153408 2441 4294967295 134512640 135450776 3221224560 3221223072 134600412 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 2723 2441 232 232 0 2491 0
[pid=23071] vsize: 10892
Current children cumulated CPU time (s) 100
Current children cumulated vsize (Kb) 10892

[startup+110.005 s]
Raw data (loadavg): 0.99 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 2556 0 0 0 10992 8 0 0 25 0 1 0 1798214867 11153408 2441 4294967295 134512640 135450776 3221224560 3221223072 134600412 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 2723 2441 232 232 0 2491 0
[pid=23071] vsize: 10892
Current children cumulated CPU time (s) 110
Current children cumulated vsize (Kb) 10892

[startup+120.006 s]
Raw data (loadavg): 0.99 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 2556 0 0 0 11992 8 0 0 25 0 1 0 1798214867 11153408 2441 4294967295 134512640 135450776 3221224560 3221223072 134600412 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 2723 2441 232 232 0 2491 0
[pid=23071] vsize: 10892
Current children cumulated CPU time (s) 120
Current children cumulated vsize (Kb) 10892

[startup+130.005 s]
Raw data (loadavg): 0.99 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 5069 0 0 0 12985 15 0 0 25 0 1 0 1798214867 13709312 3029 4294967295 134512640 135450776 3221224560 3221223072 134599250 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 3347 3029 232 232 0 3115 0
[pid=23071] vsize: 13388
Current children cumulated CPU time (s) 130
Current children cumulated vsize (Kb) 13388

[startup+140.006 s]
Raw data (loadavg): 0.99 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 6610 0 0 0 13979 19 0 0 25 0 1 0 1798214867 18620416 4220 4294967295 134512640 135450776 3221224560 3221223072 134600038 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 4546 4220 232 232 0 4314 0
[pid=23071] vsize: 18184
Current children cumulated CPU time (s) 139.98
Current children cumulated vsize (Kb) 18184

[startup+150.007 s]
Raw data (loadavg): 0.99 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 6610 0 0 0 14979 19 0 0 25 0 1 0 1798214867 18620416 4220 4294967295 134512640 135450776 3221224560 3221223072 134599360 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 4546 4220 232 232 0 4314 0
[pid=23071] vsize: 18184
Current children cumulated CPU time (s) 149.98
Current children cumulated vsize (Kb) 18184

[startup+160.007 s]
Raw data (loadavg): 0.99 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 6610 0 0 0 15980 19 0 0 25 0 1 0 1798214867 18620416 4220 4294967295 134512640 135450776 3221224560 3221223072 134599351 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 4546 4220 232 232 0 4314 0
[pid=23071] vsize: 18184
Current children cumulated CPU time (s) 159.99
Current children cumulated vsize (Kb) 18184

[startup+170.007 s]
Raw data (loadavg): 0.99 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 6610 0 0 0 16980 19 0 0 25 0 1 0 1798214867 18620416 4220 4294967295 134512640 135450776 3221224560 3221223072 134600412 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 4546 4220 232 232 0 4314 0
[pid=23071] vsize: 18184
Current children cumulated CPU time (s) 169.99
Current children cumulated vsize (Kb) 18184

[startup+180.008 s]
Raw data (loadavg): 0.99 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 6610 0 0 0 17980 19 0 0 25 0 1 0 1798214867 18620416 4220 4294967295 134512640 135450776 3221224560 3221223072 134600412 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 4546 4220 232 232 0 4314 0
[pid=23071] vsize: 18184
Current children cumulated CPU time (s) 179.99
Current children cumulated vsize (Kb) 18184

[startup+190.007 s]
Raw data (loadavg): 0.99 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 6610 0 0 0 18980 19 0 0 25 0 1 0 1798214867 18620416 4220 4294967295 134512640 135450776 3221224560 3221223072 134600431 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 4546 4220 232 232 0 4314 0
[pid=23071] vsize: 18184
Current children cumulated CPU time (s) 189.99
Current children cumulated vsize (Kb) 18184

[startup+200.007 s]
Raw data (loadavg): 0.99 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 6610 0 0 0 19980 19 0 0 25 0 1 0 1798214867 18620416 4220 4294967295 134512640 135450776 3221224560 3221223072 134600412 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 4546 4220 232 232 0 4314 0
[pid=23071] vsize: 18184
Current children cumulated CPU time (s) 199.99
Current children cumulated vsize (Kb) 18184

[startup+210.008 s]
Raw data (loadavg): 0.99 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 6610 0 0 0 20981 19 0 0 25 0 1 0 1798214867 18620416 4220 4294967295 134512640 135450776 3221224560 3221223072 134600376 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 4546 4220 232 232 0 4314 0
[pid=23071] vsize: 18184
Current children cumulated CPU time (s) 210
Current children cumulated vsize (Kb) 18184

[startup+220.007 s]
Raw data (loadavg): 0.99 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 6610 0 0 0 21981 19 0 0 25 0 1 0 1798214867 18620416 4220 4294967295 134512640 135450776 3221224560 3221223072 134600412 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 4546 4220 232 232 0 4314 0
[pid=23071] vsize: 18184
Current children cumulated CPU time (s) 220
Current children cumulated vsize (Kb) 18184

[startup+230.007 s]
Raw data (loadavg): 0.99 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 6610 0 0 0 22981 19 0 0 25 0 1 0 1798214867 18620416 4220 4294967295 134512640 135450776 3221224560 3221223072 134600415 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 4546 4220 232 232 0 4314 0
[pid=23071] vsize: 18184
Current children cumulated CPU time (s) 230
Current children cumulated vsize (Kb) 18184

[startup+240.008 s]
Raw data (loadavg): 0.99 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 6610 0 0 0 23981 19 0 0 25 0 1 0 1798214867 18620416 4220 4294967295 134512640 135450776 3221224560 3221223072 134600511 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 4546 4220 232 232 0 4314 0
[pid=23071] vsize: 18184
Current children cumulated CPU time (s) 240
Current children cumulated vsize (Kb) 18184

[startup+250.008 s]
Raw data (loadavg): 0.99 0.97 0.91 2/56 23071
Raw data (/proc/23071/stat): 23071 (PBS4) R 23070 23071 1333 0 -1 0 6610 0 0 0 24981 19 0 0 25 0 1 0 1798214867 18620416 4220 4294967295 134512640 135450776 3221224560 3221223072 134600511 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/23071/statm): 4546 4220 232 232 0 4314 0
[pid=23071] vsize: 18184
Current children cumulated CPU time (s) 250
Current children cumulated vsize (Kb) 18184
One traced child (pid=23071) exited with status: 20
All traced children have exited ! Game is over.

Child status: 20
Real time (s): 251.763
CPU time (s): 251.765
CPU user time (s): 251.529
CPU system time (s): 0.235964
CPU usage (%): 100.001
Max. virtual memory (cumulated for all children) (Kb): 18184

Verifier Data

ERROR: no interpretation found !