PB'05 competition: run trace

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:

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.
SOLVER DATA
This is the output of the solver (stdout and stderr).
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.
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

Name	normalized-opb/mps-v2-13-7/MIPLIB/miplib3/normalized-mps-v2-13-7-khb05250.opb
MD5SUM	56abcf5cc503d1b433b55ef9ec07fc76
Bench Category	optimization, big integers (OPTBIGINT)
Has Objective Function	YES
Satisfiable	NO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function	25004
Biggest coefficient in the objective function	6104809472
Number of bits for the biggest coefficient in the objective function	33
Sum of the numbers in the objective function	5527422840150
Number of bits of the sum of numbers in the objective function	43
Biggest number in a constraint	6104809472
Number of bits of the biggest number in a constraint	33
Biggest sum of numbers in a constraint	5527422840150
Number of bits of the biggest sum of numbers	43
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	0.223965
Number of variables	25544
Total number of constraints	126
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	24
Number of constraints which are nor clauses,nor cardinality constraints	102
Minimum length of a constraint	1
Maximum length of a constraint	1020

Trace number 25663

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-21 14:58:29 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=18461 boxname=wulflinc31 idbench=1421 idsolver=1 numberseed=0
MD5SUM SOLVER: e973bb179fd0e01ec8c7277096f1c3ef  /oldhome/oroussel/solvers/bsolo_lpr
MD5SUM BENCH:  56abcf5cc503d1b433b55ef9ec07fc76  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-khb05250.opb
REAL COMMAND:  bsolo_lpr /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-khb05250.opb
IDLAUNCH: 18461
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.153
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	: 3
cpu MHz		: 451.153
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:        891960 kB
Buffers:         24028 kB
Cached:          97976 kB
SwapCached:       1076 kB
Active:          59868 kB
Inactive:        64428 kB
HighTotal:      131008 kB
HighFree:        64372 kB
LowTotal:       903652 kB
LowFree:        827588 kB
SwapTotal:     2097892 kB
SwapFree:      2095984 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5356 kB
Slab:            12880 kB
Committed_AS:    63860 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-21 15:01:27 (client local time) WITH STATUS 20 IN 177.216 SECONDS
stats: 18461 7 177.216 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 25544 variables and 178 constraints.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 177.147 s
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Raw data (loadavg): 0.92 0.94 0.97 2/55 11624
Raw data (stat): 11624 (runsolver) R 11623 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 805197294 1056768 100 4294967295 134512640 135381576 3221221680 3221216900 135158418 0 2147483391 1 90112 0 0 0 17 0 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 1032
[startup+10.0009 s]
Raw data (loadavg): 1.01 0.96 0.98 2/55 11624
Raw data (stat): 11624 (bsolo_lpr) R 11623 7876 7672 0 -1 0 1409 0 0 0 991 6 0 0 25 0 1 0 805197294 18251776 1332 4294967295 134512640 134714508 3221221776 3221220004 1077414363 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 4456 1332 1111 63 0 4393 0
vsize: 17824
[startup+20.0021 s]
Raw data (loadavg): 1.01 0.96 0.98 2/55 11624
Raw data (stat): 11624 (bsolo_lpr) R 11623 7876 7672 0 -1 0 2083 0 0 0 1990 7 0 0 25 0 1 0 805197294 20955136 2006 4294967295 134512640 134714508 3221221776 3221220004 1077414382 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 5116 2006 1111 63 0 5053 0
vsize: 20464
[startup+30.0027 s]
Raw data (loadavg): 1.01 0.96 0.98 2/55 11624
Raw data (stat): 11624 (bsolo_lpr) R 11623 7876 7672 0 -1 0 2789 0 0 0 2989 8 0 0 25 0 1 0 805197294 23781376 2712 4294967295 134512640 134714508 3221221776 3221220004 1077414413 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 5806 2712 1111 63 0 5743 0
vsize: 23224
[startup+40.0029 s]
Raw data (loadavg): 1.16 1.00 0.99 2/55 11624
Raw data (stat): 11624 (bsolo_lpr) R 11623 7876 7672 0 -1 0 3522 0 0 0 3987 10 0 0 25 0 1 0 805197294 26902528 3445 4294967295 134512640 134714508 3221221776 3221220004 1077414363 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 6568 3445 1111 63 0 6505 0
vsize: 26272
[startup+50.003 s]
Raw data (loadavg): 1.13 1.00 0.99 2/55 11624
Raw data (stat): 11624 (bsolo_lpr) R 11623 7876 7672 0 -1 0 4292 0 0 0 4986 11 0 0 25 0 1 0 805197294 30011392 4215 4294967295 134512640 134714508 3221221776 3221220004 1077414413 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 7327 4215 1111 63 0 7264 0
vsize: 29308
[startup+60.0035 s]
Raw data (loadavg): 1.11 1.00 0.99 2/55 11624
Raw data (stat): 11624 (bsolo_lpr) R 11623 7876 7672 0 -1 0 5107 0 0 0 5985 13 0 0 25 0 1 0 805197294 33398784 5030 4294967295 134512640 134714508 3221221776 3221220004 1077414395 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 8154 5030 1111 63 0 8091 0
vsize: 32616
[startup+70.0034 s]
Raw data (loadavg): 1.17 1.01 0.99 2/55 11624
Raw data (stat): 11624 (bsolo_lpr) R 11623 7876 7672 0 -1 0 5937 0 0 0 6983 14 0 0 25 0 1 0 805197294 36794368 5860 4294967295 134512640 134714508 3221221776 3221220004 1077414413 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 8983 5860 1111 63 0 8920 0
vsize: 35932
[startup+80.0046 s]
Raw data (loadavg): 1.14 1.01 0.99 2/55 11624
Raw data (stat): 11624 (bsolo_lpr) R 11623 7876 7672 0 -1 0 6824 0 0 0 7982 16 0 0 25 0 1 0 805197294 40480768 6747 4294967295 134512640 134714508 3221221776 3221220004 1077414435 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 9883 6747 1111 63 0 9820 0
vsize: 39532
[startup+90.0043 s]
Raw data (loadavg): 1.12 1.01 0.99 2/55 11624
Raw data (stat): 11624 (bsolo_lpr) R 11623 7876 7672 0 -1 0 7772 0 0 0 8980 18 0 0 25 0 1 0 805197294 44294144 7695 4294967295 134512640 134714508 3221221776 3221220004 1077414338 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 10814 7695 1111 63 0 10751 0
vsize: 43256
[startup+100.212 s]
Raw data (loadavg): 1.18 1.03 1.00 2/57 11661
Raw data (stat): 11624 (bsolo_lpr) R 11623 7876 7672 0 -1 0 8785 0 0 0 9998 20 0 0 25 0 1 0 805197294 48398336 8708 4294967295 134512640 134714508 3221221776 3221220004 1077414383 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 11816 8708 1111 63 0 11753 0
vsize: 47264
[startup+110.214 s]
Raw data (loadavg): 1.31 1.06 1.01 2/55 11677
Raw data (stat): 11624 (bsolo_lpr) R 11623 7876 7672 0 -1 0 9856 0 0 0 10996 23 0 0 25 0 1 0 805197294 52776960 9779 4294967295 134512640 134714508 3221221776 3221220004 1077414363 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 12885 9779 1111 63 0 12822 0
vsize: 51540
[startup+120.35 s]
Raw data (loadavg): 1.26 1.06 1.01 2/55 11677
Raw data (stat): 11624 (bsolo_lpr) R 11623 7876 7672 0 -1 0 11075 0 0 0 12007 26 0 0 25 0 1 0 805197294 57724928 10998 4294967295 134512640 134714508 3221221776 3221220004 1077414433 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 14093 10998 1111 63 0 14030 0
vsize: 56372
[startup+130.35 s]
Raw data (loadavg): 1.22 1.05 1.01 2/55 11677
Raw data (stat): 11624 (bsolo_lpr) R 11623 7876 7672 0 -1 0 12439 0 0 0 13005 28 0 0 25 0 1 0 805197294 63541248 12362 4294967295 134512640 134714508 3221221776 3221220432 134527946 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 15513 12362 1111 63 0 15450 0
vsize: 62052
[startup+140.35 s]
Raw data (loadavg): 1.18 1.05 1.01 2/55 11677
Raw data (stat): 11624 (bsolo_lpr) R 11623 7876 7672 0 -1 0 13961 0 0 0 14002 31 0 0 25 0 1 0 805197294 69758976 13884 4294967295 134512640 134714508 3221221776 3221220432 134527932 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 17031 13884 1111 63 0 16968 0
vsize: 68124
[startup+150.35 s]
Raw data (loadavg): 1.16 1.05 1.01 2/55 11677
Raw data (stat): 11624 (bsolo_lpr) R 11623 7876 7672 0 -1 0 15622 0 0 0 14999 34 0 0 25 0 1 0 805197294 76546048 15545 4294967295 134512640 134714508 3221221776 3221220432 134527932 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 18688 15545 1111 63 0 18625 0
vsize: 74752
[startup+160.351 s]
Raw data (loadavg): 1.13 1.05 1.01 2/55 11677
Raw data (stat): 11624 (bsolo_lpr) R 11623 7876 7672 0 -1 0 17381 0 0 0 15997 37 0 0 25 0 1 0 805197294 83615744 17304 4294967295 134512640 134714508 3221221776 3221220432 134527946 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 20414 17304 1111 63 0 20351 0
vsize: 81656
[startup+170.352 s]
Raw data (loadavg): 1.11 1.05 1.00 2/55 11679
Raw data (stat): 11624 (bsolo_lpr) R 11623 7876 7672 0 -1 0 19808 0 0 0 16992 41 0 0 25 0 1 0 805197294 93528064 19731 4294967295 134512640 134714508 3221221776 3221218236 1077359223 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 22834 19731 1111 63 0 22771 0
vsize: 91336
[startup+177.232 s]
Raw data (loadavg): 1.10 1.04 1.00 1/54 11679
Raw data (stat): 11624 (bsolo_lpr) R 11623 7876 7672 0 -1 0 19808 0 0 0 16992 41 0 0 25 0 1 0 805197294 93528064 19731 4294967295 134512640 134714508 3221221776 3221218236 1077359223 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 22834 19731 1111 63 0 22771 0
vsize: 0

Child status: 20
Real time (s): 177.232
CPU time (s): 177.216
CPU user time (s): 176.699
CPU system time (s): 0.516921
CPU usage (%): 99.991
Max. virtual memory (Kb): 91336
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####