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-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-pipex.opb
MD5SUM	b9c1029cc1d97a8d60e984f96f5d3267
Bench Category	optimization, medium integers (OPTMEDINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	788263
Optimality of the best value was proved	NO
Number of terms in the objective function	48
Biggest coefficient in the objective function	107865
Number of bits for the biggest coefficient in the objective function	17
Sum of the numbers in the objective function	2514082
Number of bits of the sum of numbers in the objective function	22
Biggest number in a constraint	107865
Number of bits of the biggest number in a constraint	17
Biggest sum of numbers in a constraint	2514082
Number of bits of the biggest sum of numbers	22
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	1.02184
Number of variables	48
Total number of constraints	73
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	64
Number of constraints which are nor clauses,nor cardinality constraints	9
Minimum length of a constraint	1
Maximum length of a constraint	16

Trace number 16845

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc23 THE 2005-04-21 09:01:14 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=12203 boxname=wulflinc23 idbench=939 idsolver=9 numberseed=0
MD5SUM SOLVER: daf345f6fbf228671abfac48013b9cac  /oldhome/oroussel/solvers/sat4jPseudo.jar
MD5SUM BENCH:  b9c1029cc1d97a8d60e984f96f5d3267  /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-pipex.opb
REAL COMMAND:  java -server -Xms650M -Xmx650M -jar /oldhome/oroussel/solvers/sat4jPseudo.jar /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-pipex.opb
IDLAUNCH: 12203
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.037
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	: 3
cpu MHz		: 451.037
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:        402468 kB
Buffers:         24436 kB
Cached:         578980 kB
SwapCached:        492 kB
Active:         375128 kB
Inactive:       230356 kB
HighTotal:      131008 kB
HighFree:          280 kB
LowTotal:       903652 kB
LowFree:        402188 kB
SwapTotal:     2097136 kB
SwapFree:      2095852 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5224 kB
Slab:            20892 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-21 09:01:44 (client local time) WITH STATUS 30 IN 53.6108 SECONDS
stats: 12203 0 53.6108 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c solving /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-pipex.opb
c reading problem 
c [nbvar=48]
c [nbconstr=73]
c time 0.424
c #vars     48
c #clauses  41
c starts	: 0
c conflicts	: 0
c decisions	: 0
c propagations	: 0
c inspects	: 0
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 0
c root simplifications	: 0
c SATISFIABLE
c OPTIMIZING...
c 
c CURRENT OPTIMUM=877853
c Current CPU time (ms) : 1.392
c starts	: 1
c conflicts	: 18
c decisions	: 41
c propagations	: 131
c inspects	: 327
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 18
c root simplifications	: 1
c 
c CURRENT OPTIMUM=834530
c Current CPU time (ms) : 3.279
c starts	: 2
c conflicts	: 37
c decisions	: 93
c propagations	: 307
c inspects	: 1031
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 37
c root simplifications	: 2
c 
c CURRENT OPTIMUM=824637
c Current CPU time (ms) : 7.059
c starts	: 3
c conflicts	: 75
c decisions	: 148
c propagations	: 594
c inspects	: 2791
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 75
c root simplifications	: 3
c 
c CURRENT OPTIMUM=820889
c Current CPU time (ms) : 7.901
c starts	: 4
c conflicts	: 90
c decisions	: 181
c propagations	: 730
c inspects	: 4003
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 1
c learned clauses	: 90
c root simplifications	: 4
c 
c CURRENT OPTIMUM=806068
c Current CPU time (ms) : 8.709
c starts	: 5
c conflicts	: 108
c decisions	: 214
c propagations	: 909
c inspects	: 5945
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 1
c learned clauses	: 108
c root simplifications	: 5
c 
c CURRENT OPTIMUM=804920
c Current CPU time (ms) : 16.271
c starts	: 7
c conflicts	: 244
c decisions	: 399
c propagations	: 2370
c inspects	: 28448
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 1
c learned clauses	: 244
c root simplifications	: 7
c 
c CURRENT OPTIMUM=803688
c Current CPU time (ms) : 17.424
c starts	: 8
c conflicts	: 267
c decisions	: 435
c propagations	: 2620
c inspects	: 33876
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 1
c learned clauses	: 267
c root simplifications	: 8
c 
c CURRENT OPTIMUM=798188
c Current CPU time (ms) : 19.142
c starts	: 9
c conflicts	: 309
c decisions	: 505
c propagations	: 3076
c inspects	: 43902
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 1
c learned clauses	: 309
c root simplifications	: 9
c 
c CURRENT OPTIMUM=790714
c Current CPU time (ms) : 21.793
c starts	: 10
c conflicts	: 377
c decisions	: 588
c propagations	: 3820
c inspects	: 65084
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 1
c learned clauses	: 377
c root simplifications	: 10
c 
c CURRENT OPTIMUM=788385
c Current CPU time (ms) : 24.225
c starts	: 12
c conflicts	: 478
c decisions	: 720
c propagations	: 4812
c inspects	: 90660
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 2
c learned clauses	: 478
c root simplifications	: 13
c 
c CURRENT OPTIMUM=788263
c Current CPU time (ms) : 28.399
c starts	: 14
c conflicts	: 631
c decisions	: 964
c propagations	: 6650
c inspects	: 142462
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 2
c learned clauses	: 631
c root simplifications	: 17
c Total CPU time (ms) : 28.742
c 
s OPTIMUM FOUND
v QUAN0101_bit0 QUAN0102_bit0 -QUAN0103_bit0 -QUAN0104_bit0 -QUAN0105_bit0 -QUAN0106_bit0 -QUAN0107_bit0 -QUAN0108_bit0 -QUAN0109_bit0 -QUAN0110_bit0 QUAN0111_bit0 -QUAN0112_bit0 QUAN0113_bit0 -QUAN0114_bit0 -QUAN0115_bit0 -QUAN0116_bit0 -QUAN0201_bit0 -QUAN0202_bit0 -QUAN0203_bit0 -QUAN0204_bit0 -QUAN0205_bit0 -QUAN0206_bit0 QUAN0207_bit0 QUAN0208_bit0 -QUAN0209_bit0 -QUAN0210_bit0 -QUAN0211_bit0 QUAN0212_bit0 -QUAN0213_bit0 QUAN0214_bit0 QUAN0215_bit0 QUAN0216_bit0 -QUAN0301_bit0 -QUAN0302_bit0 QUAN0303_bit0 QUAN0304_bit0 QUAN0305_bit0 QUAN0306_bit0 -QUAN0307_bit0 -QUAN0308_bit0 QUAN0309_bit0 QUAN0310_bit0 -QUAN0311_bit0 -QUAN0312_bit0 -QUAN0313_bit0 -QUAN0314_bit0 -QUAN0315_bit0 -QUAN0316_bit0 
c objectif function=788263
#### 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): 0.71 0.89 0.95 2/54 839
Raw data (stat): 839 (runsolver) R 838 3260 3259 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 543837194 1052672 99 4294967295 134512640 135381576 3221224432 3221219680 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0016 s]
Raw data (loadavg): 1.06 0.95 0.97 4/64 856
Raw data (stat): 839 (java) R 838 3260 3259 0 -1 0 13314 3 1 0 644 30 0 0 25 0 11 0 543837194 882057216 20131 4294967295 134512640 134569956 3221224400 3221214440 1077378429 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 215346 20131 13073 16 0 215330 0
vsize: 861384
[startup+20.0015 s]
Raw data (loadavg): 1.36 1.02 0.99 4/64 859
Raw data (stat): 839 (java) R 838 3260 3259 0 -1 0 18148 3 1 0 1381 41 0 0 25 0 11 0 543837194 882692096 25878 4294967295 134512640 134569956 3221224400 3221214792 1131189291 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 215501 25878 13073 16 0 215485 0
vsize: 862004
[startup+29.5644 s]
Raw data (loadavg): 1.45 1.05 1.00 1/53 863
Raw data (stat): 839 (java) R 838 3260 3259 0 -1 0 18148 3 1 0 1381 41 0 0 25 0 11 0 543837194 882692096 25878 4294967295 134512640 134569956 3221224400 3221214792 1131189291 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 215501 25878 13073 16 0 215485 0
vsize: 0

Child status: 30
Real time (s): 29.5642
CPU time (s): 53.6108
CPU user time (s): 52.61
CPU system time (s): 1.00085
CPU usage (%): 181.337
Max. virtual memory (Kb): 862004
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	788263
#### END VERIFIER DATA ####