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/miplib/normalized-mps-v2-13-7-sample2.opb
MD5SUM	d28092793cdc5a919be9a0f5974c70fe
Bench Category	optimization, medium integers (OPTMEDINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	48000
Optimality of the best value was proved	NO
Number of terms in the objective function	489
Biggest coefficient in the objective function	3145728
Number of bits for the biggest coefficient in the objective function	22
Sum of the numbers in the objective function	69282750
Number of bits of the sum of numbers in the objective function	27
Biggest number in a constraint	3145728
Number of bits of the biggest number in a constraint	22
Biggest sum of numbers in a constraint	69282750
Number of bits of the biggest sum of numbers	27
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	10.6134
Number of variables	873
Total number of constraints	67
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	43
Minimum length of a constraint	1
Maximum length of a constraint	100

Trace number 27360

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc11 THE 2005-05-24 21:29:59 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=17241 boxname=wulflinc11 idbench=1327 idsolver=3 numberseed=0
MD5SUM SOLVER: 03a6a792daea978e4202f78851741568  /oldhome/oroussel/solvers/bsolo_mis
MD5SUM BENCH:  d28092793cdc5a919be9a0f5974c70fe  /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-13-7-sample2.opb
REAL COMMAND:  bsolo_mis /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-13-7-sample2.opb
IDLAUNCH: 17241
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.028
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		: 451.028
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:        877844 kB
Buffers:         21400 kB
Cached:         109524 kB
SwapCached:        656 kB
Active:          18908 kB
Inactive:       117964 kB
HighTotal:      131008 kB
HighFree:       104160 kB
LowTotal:       903652 kB
LowFree:        773684 kB
SwapTotal:     2097136 kB
SwapFree:      2095664 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5468 kB
Slab:            14376 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-24 21:32:25 (client local time) WITH STATUS 0 IN 144.231 SECONDS
stats: 17241 7 144.231 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Initial problem consists of 873 variables and 67 constraints.
c After prepocess the problem consists of 456 variables and 67 constraints.
c preprocess terminated 0.556 s
c Initial Lower Bound: 256
c Lower Bound Elapsed time: 0
c Use computed LB before first solution.
#### 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): 0.85 0.95 0.98 2/54 30777
Raw data (stat): 30777 (runsolver) R 30776 25830 25829 0 -1 64 4 0 0 0 0 0 0 0 20 0 1 0 775263905 1052672 99 4294967295 134512640 135381576 3221224496 3221219712 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0002 s]
Raw data (loadavg): 0.87 0.95 0.98 2/54 30777
Raw data (stat): 30777 (bsolo_mis) R 30776 25830 25829 0 -1 0 14524 0 0 0 964 34 0 0 25 0 1 0 775263905 63819776 14402 4294967295 134512640 134714540 3221224592 3221223516 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 15581 14402 1111 63 0 15518 0
vsize: 62324
[startup+20.0012 s]
Raw data (loadavg): 0.89 0.95 0.98 2/54 30777
Raw data (stat): 30777 (bsolo_mis) R 30776 25830 25829 0 -1 0 31619 0 0 0 1919 79 0 0 25 0 1 0 775263905 133869568 31265 4294967295 134512640 134714540 3221224592 3221223516 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 32683 31265 1111 63 0 32620 0
vsize: 130732
[startup+30.0018 s]
Raw data (loadavg): 0.91 0.95 0.98 2/54 30777
Raw data (stat): 30777 (bsolo_mis) R 30776 25830 25829 0 -1 0 48056 0 0 0 2882 116 0 0 25 0 1 0 775263905 204484608 47239 4294967295 134512640 134714540 3221224592 3221223196 134536779 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 49923 47239 1111 63 0 49860 0
vsize: 199692
[startup+40.0025 s]
Raw data (loadavg): 0.92 0.95 0.98 2/54 30777
Raw data (stat): 30777 (bsolo_mis) R 30776 25830 25829 0 -1 0 62580 0 0 0 3847 152 0 0 25 0 1 0 775263905 261623808 61754 4294967295 134512640 134714540 3221224592 3221222920 1077378037 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 63873 61754 1111 63 0 63810 0
vsize: 255492
[startup+50.0026 s]
Raw data (loadavg): 0.93 0.96 0.98 2/54 30777
Raw data (stat): 30777 (bsolo_mis) R 30776 25830 25829 0 -1 0 84236 0 0 0 4798 200 0 0 25 0 1 0 775263905 349052928 79629 4294967295 134512640 134714540 3221224592 3221223516 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 85218 79630 1111 63 0 85155 0
vsize: 340872
[startup+60.0021 s]
Raw data (loadavg): 0.94 0.96 0.98 2/54 30777
Raw data (stat): 30777 (bsolo_mis) R 30776 25830 25829 0 -1 0 98497 0 0 0 5766 233 0 0 25 0 1 0 775263905 403542016 93533 4294967295 134512640 134714540 3221224592 3221222920 1077378037 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 98521 93534 1111 63 0 98458 0
vsize: 394084
[startup+70.0028 s]
Raw data (loadavg): 0.95 0.96 0.98 2/54 30777
Raw data (stat): 30777 (bsolo_mis) R 30776 25830 25829 0 -1 0 114667 0 0 0 6726 274 0 0 25 0 1 0 775263905 466591744 109621 4294967295 134512640 134714540 3221224592 3221223328 134695297 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 113914 109621 1111 63 0 113851 0
vsize: 455656
[startup+80.003 s]
Raw data (loadavg): 0.96 0.96 0.98 2/54 30777
Raw data (stat): 30777 (bsolo_mis) R 30776 25830 25829 0 -1 0 135040 0 0 0 7684 316 0 0 25 0 1 0 775263905 545013760 126024 4294967295 134512640 134714540 3221224592 3221223232 134535146 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 133060 126028 1111 63 0 132997 0
vsize: 532240
[startup+90.0034 s]
Raw data (loadavg): 0.96 0.96 0.98 2/54 30777
Raw data (stat): 30777 (bsolo_mis) R 30776 25830 25829 0 -1 0 158278 0 0 0 8632 368 0 0 25 0 1 0 775263905 634073088 142942 4294967295 134512640 134714540 3221224592 3221222920 1077378037 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 154803 142943 1111 63 0 154740 0
vsize: 619212
[startup+100.004 s]
Raw data (loadavg): 0.97 0.96 0.98 2/54 30777
Raw data (stat): 30777 (bsolo_mis) R 30776 25830 25829 0 -1 0 173690 0 0 0 9592 408 0 0 25 0 1 0 775263905 693858304 158110 4294967295 134512640 134714540 3221224592 3221222920 1077378037 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 169432 158112 1111 63 0 169369 0
vsize: 677596
[startup+110.003 s]
Raw data (loadavg): 0.97 0.96 0.98 2/54 30777
Raw data (stat): 30777 (bsolo_mis) R 30776 25830 25829 0 -1 0 184383 0 0 0 10567 433 0 0 25 0 1 0 775263905 735334400 168641 4294967295 134512640 134714540 3221224592 3221223160 1077378037 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 179525 168642 1111 63 0 179462 0
vsize: 718100
[startup+120.004 s]
Raw data (loadavg): 0.98 0.96 0.98 2/54 30777
Raw data (stat): 30777 (bsolo_mis) R 30776 25830 25829 0 -1 0 201682 0 0 0 11519 481 0 0 25 0 1 0 775263905 800190464 185280 4294967295 134512640 134714540 3221224592 3221223304 134558629 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 195359 185282 1111 63 0 195296 0
vsize: 781436
[startup+130.004 s]
Raw data (loadavg): 0.98 0.96 0.98 2/54 30777
Raw data (stat): 30777 (bsolo_mis) R 30776 25830 25829 0 -1 0 216647 0 0 0 12479 521 0 0 25 0 1 0 775263905 858292224 200083 4294967295 134512640 134714540 3221224592 3221223328 134556783 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 209544 200084 1111 63 0 209481 0
vsize: 838176
[startup+140.004 s]
Raw data (loadavg): 0.98 0.96 0.98 2/54 30777
Raw data (stat): 30777 (bsolo_mis) R 30776 25830 25829 0 -1 0 232270 0 0 0 13439 561 0 0 25 0 1 0 775263905 919257088 215706 4294967295 134512640 134714540 3221224592 3221223216 134535414 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 224428 215706 1111 63 0 224365 0
vsize: 897712
[startup+144.221 s]
Raw data (loadavg): 0.98 0.96 0.98 1/53 30777
Raw data (stat): 30777 (bsolo_mis) R 30776 25830 25829 0 -1 0 232270 0 0 0 13439 561 0 0 25 0 1 0 775263905 919257088 215706 4294967295 134512640 134714540 3221224592 3221223216 134535414 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 224428 215706 1111 63 0 224365 0
vsize: 0

Child ended because it received signal 6 (SIGABRT)
Real time (s): 144.22
CPU time (s): 144.231
CPU user time (s): 138.007
CPU system time (s): 6.22405
CPU usage (%): 100.008
Max. virtual memory (Kb): 897712
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####