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/MIPLIB/miplib2003/normalized-mps-v2-20-10-rd-rplusc-21.opb
MD5SUMd2b612d978c6eb050af622d4cf2ae598
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 48
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2160590747
Number of bits of the sum of numbers in the objective function 32
Biggest number in a constraint 2962281908055777280
Number of bits of the biggest number in a constraint 62
Biggest sum of numbers in a constraint 6289973478481187311
Number of bits of the biggest sum of numbers63
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark708.041
Number of variables3616
Total number of constraints126450
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)699
Number of constraints which are nor clauses,nor cardinality constraints125751
Minimum length of a constraint1
Maximum length of a constraint189

Trace number 4040

Launcher Data

LAUNCH ON wulflinc10 THE 2005-09-19 04:52:29 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=4111 boxname=wulflinc10 idbench=595 idsolver=4 numberseed=0
MD5SUM SOLVER: 21c3ffd7205c96d5f0784fd273b92938  /oldhome/oroussel/solvers/PBS4
MD5SUM BENCH:  d2b612d978c6eb050af622d4cf2ae598  /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-rd-rplusc-21.opb
REAL COMMAND:  PBS4 /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-rd-rplusc-21.opb
IDLAUNCH: 4111
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
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	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        628172 kB
Buffers:         37056 kB
Cached:         341680 kB
SwapCached:        228 kB
Active:         293364 kB
Inactive:        88344 kB
HighTotal:      131008 kB
HighFree:         3808 kB
LowTotal:       903652 kB
LowFree:        624364 kB
SwapTotal:     2097136 kB
SwapFree:      2096756 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           6272 kB
Slab:            18980 kB
Committed_AS:    64164 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-19 04:55:54 (client local time) WITH STATUS 20 IN 198.755 SECONDS
stats: 4111 7 198.755 20

Solver Data

c PBS v4 by Bashar Al-Rawi & Fadi Aloul
c Solving /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-rd-rplusc-21.opb ......
s UNSATISFIABLE
c Done, CPU Time=0.005999

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/3542/stat): 3542 (PBS4) R 3541 3542 22582 0 -1 0 18 0 0 0 0 0 0 0 22 0 1 0 1788970594 978944 2 4294967295 134512640 135450776 3221224560 3221224560 134512960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/3542/statm): 239 2 232 232 0 7 0
[pid=3542] vsize: 956
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-rd-rplusc-21.opb
open syscall for file /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-rd-rplusc-21.opb

[startup+10.0032 s]
Raw data (loadavg): 1.04 0.98 0.97 2/56 3542
Raw data (/proc/3542/stat): 3542 (PBS4) R 3541 3542 22582 0 -1 0 3219 0 0 0 977 16 0 0 25 0 1 0 1788970594 13783040 3104 4294967295 134512640 135450776 3221224560 3221223072 134599247 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/3542/statm): 3365 3104 232 232 0 3133 0
[pid=3542] vsize: 13460
Current children cumulated CPU time (s) 9.93
Current children cumulated vsize (Kb) 13460

[startup+20.0038 s]
Raw data (loadavg): 1.04 0.98 0.97 2/56 3542
Raw data (/proc/3542/stat): 3542 (PBS4) R 3541 3542 22582 0 -1 0 6240 0 0 0 1956 32 0 0 25 0 1 0 1788970594 25661440 5996 4294967295 134512640 135450776 3221224560 3221222928 134844223 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/3542/statm): 6265 5996 232 232 0 6033 0
[pid=3542] vsize: 25060
Current children cumulated CPU time (s) 19.88
Current children cumulated vsize (Kb) 25060

[startup+30.0043 s]
Raw data (loadavg): 1.03 0.98 0.97 2/56 3542
Raw data (/proc/3542/stat): 3542 (PBS4) R 3541 3542 22582 0 -1 0 12191 0 0 0 2925 55 0 0 25 0 1 0 1788970594 49688576 11690 4294967295 134512640 135450776 3221224560 3221222992 134527082 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/3542/statm): 12131 11690 232 232 0 11899 0
[pid=3542] vsize: 48524
Current children cumulated CPU time (s) 29.8
Current children cumulated vsize (Kb) 48524

[startup+40.0049 s]
Raw data (loadavg): 1.02 0.98 0.97 2/56 3542
Raw data (/proc/3542/stat): 3542 (PBS4) R 3541 3542 22582 0 -1 0 12352 0 0 0 3912 65 0 0 25 0 1 0 1788970594 49688576 11851 4294967295 134512640 135450776 3221224560 3221223056 134524210 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/3542/statm): 12131 11851 232 232 0 11899 0
[pid=3542] vsize: 48524
Current children cumulated CPU time (s) 39.77
Current children cumulated vsize (Kb) 48524

[startup+50.0065 s]
Raw data (loadavg): 1.02 0.98 0.97 2/56 3542
Raw data (/proc/3542/stat): 3542 (PBS4) R 3541 3542 22582 0 -1 0 22283 0 0 0 4874 95 0 0 25 0 1 0 1788970594 90038272 21269 4294967295 134512640 135450776 3221224560 3221222932 134524558 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/3542/statm): 21982 21269 232 232 0 21750 0
[pid=3542] vsize: 87928
Current children cumulated CPU time (s) 49.69
Current children cumulated vsize (Kb) 87928

[startup+60.006 s]
Raw data (loadavg): 1.02 0.98 0.97 2/56 3542
Raw data (/proc/3542/stat): 3542 (PBS4) R 3541 3542 22582 0 -1 0 22379 0 0 0 5858 106 0 0 25 0 1 0 1788970594 90038272 21365 4294967295 134512640 135450776 3221224560 3221223088 134672169 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/3542/statm): 21982 21365 232 232 0 21750 0
[pid=3542] vsize: 87928
Current children cumulated CPU time (s) 59.64
Current children cumulated vsize (Kb) 87928

[startup+70.0056 s]
Raw data (loadavg): 1.01 0.98 0.97 2/56 3542
Raw data (/proc/3542/stat): 3542 (PBS4) R 3541 3542 22582 0 -1 0 22476 0 0 0 6843 115 0 0 25 0 1 0 1788970594 90038272 21462 4294967295 134512640 135450776 3221224560 3221223136 134675455 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/3542/statm): 21982 21462 232 232 0 21750 0
[pid=3542] vsize: 87928
Current children cumulated CPU time (s) 69.58
Current children cumulated vsize (Kb) 87928

[startup+80.0061 s]
Raw data (loadavg): 1.01 0.98 0.97 2/56 3542
Raw data (/proc/3542/stat): 3542 (PBS4) T 3541 3542 22582 0 -1 0 22573 0 0 0 7826 125 0 0 25 0 1 0 1788970594 90038272 21559 4294967295 134512640 135450776 3221224560 3221222800 135124493 0 0 5 0 3222434794 0 0 17 1 0 0
Raw data (/proc/3542/statm): 21982 21559 232 232 0 21750 0
[pid=3542] vsize: 87928
Current children cumulated CPU time (s) 79.51
Current children cumulated vsize (Kb) 87928

[startup+90.0057 s]
Raw data (loadavg): 1.09 1.00 0.98 2/56 3542
Raw data (/proc/3542/stat): 3542 (PBS4) R 3541 3542 22582 0 -1 0 24483 0 0 0 8806 139 0 0 25 0 1 0 1788970594 97337344 23469 4294967295 134512640 135450776 3221224560 3221223056 134524258 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/3542/statm): 23764 23469 232 232 0 23532 0
[pid=3542] vsize: 95056
Current children cumulated CPU time (s) 89.45
Current children cumulated vsize (Kb) 95056

[startup+100.006 s]
Raw data (loadavg): 1.07 1.00 0.98 2/56 3542
Raw data (/proc/3542/stat): 3542 (PBS4) R 3541 3542 22582 0 -1 0 26443 0 0 0 9787 152 0 0 25 0 1 0 1788970594 105041920 25429 4294967295 134512640 135450776 3221224560 3221223056 134524204 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/3542/statm): 25645 25429 232 232 0 25413 0
[pid=3542] vsize: 102580
Current children cumulated CPU time (s) 99.39
Current children cumulated vsize (Kb) 102580

[startup+110.007 s]
Raw data (loadavg): 1.06 1.00 0.98 2/56 3542
Raw data (/proc/3542/stat): 3542 (PBS4) R 3541 3542 22582 0 -1 0 46235 0 0 0 10731 200 0 0 25 0 1 0 1788970594 185741312 44196 4294967295 134512640 135450776 3221224560 3221223172 134864596 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/3542/statm): 45347 44196 232 232 0 45115 0
[pid=3542] vsize: 181388
Current children cumulated CPU time (s) 109.31
Current children cumulated vsize (Kb) 181388

[startup+120.007 s]
Raw data (loadavg): 1.05 1.00 0.98 2/56 3542
Raw data (/proc/3542/stat): 3542 (PBS4) R 3541 3542 22582 0 -1 0 46329 0 0 0 11715 211 0 0 25 0 1 0 1788970594 185741312 44290 4294967295 134512640 135450776 3221224560 3221223104 134855580 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/3542/statm): 45347 44290 232 232 0 45115 0
[pid=3542] vsize: 181388
Current children cumulated CPU time (s) 119.26
Current children cumulated vsize (Kb) 181388

[startup+130.008 s]
Raw data (loadavg): 1.04 1.00 0.98 2/56 3542
Raw data (/proc/3542/stat): 3542 (PBS4) R 3541 3542 22582 0 -1 0 46425 0 0 0 12700 220 0 0 25 0 1 0 1788970594 185741312 44386 4294967295 134512640 135450776 3221224560 3221223136 134675491 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/3542/statm): 45347 44386 232 232 0 45115 0
[pid=3542] vsize: 181388
Current children cumulated CPU time (s) 129.2
Current children cumulated vsize (Kb) 181388

[startup+140.009 s]
Raw data (loadavg): 1.04 1.00 0.98 2/56 3542
Raw data (/proc/3542/stat): 3542 (PBS4) R 3541 3542 22582 0 -1 0 46521 0 0 0 13686 229 0 0 25 0 1 0 1788970594 185741312 44482 4294967295 134512640 135450776 3221224560 3221223104 134846937 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/3542/statm): 45347 44482 232 232 0 45115 0
[pid=3542] vsize: 181388
Current children cumulated CPU time (s) 139.15
Current children cumulated vsize (Kb) 181388

[startup+150.009 s]
Raw data (loadavg): 1.03 1.00 0.98 2/56 3542
Raw data (/proc/3542/stat): 3542 (PBS4) R 3541 3542 22582 0 -1 0 46617 0 0 0 14669 240 0 0 25 0 1 0 1788970594 185741312 44578 4294967295 134512640 135450776 3221224560 3221222932 134524539 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/3542/statm): 45347 44578 232 232 0 45115 0
[pid=3542] vsize: 181388
Current children cumulated CPU time (s) 149.09
Current children cumulated vsize (Kb) 181388

[startup+160.009 s]
Raw data (loadavg): 1.03 1.00 0.98 2/56 3542
Raw data (/proc/3542/stat): 3542 (PBS4) R 3541 3542 22582 0 -1 0 46712 0 0 0 15655 249 0 0 25 0 1 0 1788970594 185741312 44673 4294967295 134512640 135450776 3221224560 3221223104 134855580 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/3542/statm): 45347 44673 232 232 0 45115 0
[pid=3542] vsize: 181388
Current children cumulated CPU time (s) 159.04
Current children cumulated vsize (Kb) 181388

[startup+170.008 s]
Raw data (loadavg): 1.02 1.00 0.98 2/56 3542
Raw data (/proc/3542/stat): 3542 (PBS4) R 3541 3542 22582 0 -1 0 46808 0 0 0 16639 260 0 0 25 0 1 0 1788970594 185741312 44769 4294967295 134512640 135450776 3221224560 3221223056 134524341 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/3542/statm): 45347 44769 232 232 0 45115 0
[pid=3542] vsize: 181388
Current children cumulated CPU time (s) 168.99
Current children cumulated vsize (Kb) 181388

[startup+180.009 s]
Raw data (loadavg): 1.02 1.00 0.98 2/56 3542
Raw data (/proc/3542/stat): 3542 (PBS4) R 3541 3542 22582 0 -1 0 47789 0 0 0 17622 271 0 0 25 0 1 0 1788970594 189390848 45750 4294967295 134512640 135450776 3221224560 3221223056 134524204 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/3542/statm): 46238 45750 232 232 0 46006 0
[pid=3542] vsize: 184952
Current children cumulated CPU time (s) 178.93
Current children cumulated vsize (Kb) 184952

[startup+190.009 s]
Raw data (loadavg): 1.01 1.00 0.98 2/56 3542
Raw data (/proc/3542/stat): 3542 (PBS4) R 3541 3542 22582 0 -1 0 49745 0 0 0 18601 286 0 0 25 0 1 0 1788970594 196960256 47706 4294967295 134512640 135450776 3221224560 3221222932 134524541 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/3542/statm): 48086 47706 232 232 0 47854 0
[pid=3542] vsize: 192344
Current children cumulated CPU time (s) 188.87
Current children cumulated vsize (Kb) 192344
One traced child (pid=3542) exited with status: 20
All traced children have exited ! Game is over.

Child status: 20
Real time (s): 199.945
CPU time (s): 198.755
CPU user time (s): 195.662
CPU system time (s): 3.09253
CPU usage (%): 99.4046
Max. virtual memory (cumulated for all children) (Kb): 192344

Verifier Data

ERROR: no interpretation found !