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-p0033.opb
MD5SUM	57736ac00f3096f4db9863fb985591a0
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	3089
Optimality of the best value was proved	NO
Number of terms in the objective function	33
Biggest coefficient in the objective function	517
Number of bits for the biggest coefficient in the objective function	10
Sum of the numbers in the objective function	7276
Number of bits of the sum of numbers in the objective function	13
Biggest number in a constraint	1656
Number of bits of the biggest number in a constraint	11
Biggest sum of numbers in a constraint	7276
Number of bits of the biggest sum of numbers	13
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	0.063989
Number of variables	33
Total number of constraints	48
Number of constraints which are clauses	1
Number of constraints which are cardinality constraints (but not clauses)	36
Number of constraints which are nor clauses,nor cardinality constraints	11
Minimum length of a constraint	1
Maximum length of a constraint	19

Trace number 18984

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc23 THE 2005-04-21 17:43:51 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=17091 boxname=wulflinc23 idbench=1315 idsolver=9 numberseed=0
MD5SUM SOLVER: daf345f6fbf228671abfac48013b9cac  /oldhome/oroussel/solvers/sat4jPseudo.jar
MD5SUM BENCH:  57736ac00f3096f4db9863fb985591a0  /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-13-7-p0033.opb
REAL COMMAND:  java -server -Xms650M -Xmx650M -jar /oldhome/oroussel/solvers/sat4jPseudo.jar /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-13-7-p0033.opb
IDLAUNCH: 17091
/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:        641024 kB
Buffers:         26744 kB
Cached:         341824 kB
SwapCached:        536 kB
Active:          31668 kB
Inactive:       338948 kB
HighTotal:      131008 kB
HighFree:        16184 kB
LowTotal:       903652 kB
LowFree:        624840 kB
SwapTotal:     2097136 kB
SwapFree:      2095852 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           5224 kB
Slab:            17392 kB
Committed_AS:    63584 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-21 17:44:00 (client local time) WITH STATUS 30 IN 16.3595 SECONDS
stats: 17091 0 16.3595 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c solving /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-13-7-p0033.opb
c reading problem 
c [nbvar=33]
c [nbconstr=48]
c time 0.353
c #vars     33
c #clauses  15
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=3933
c Current CPU time (ms) : 0.558
c starts	: 1
c conflicts	: 4
c decisions	: 28
c propagations	: 70
c inspects	: 86
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 4
c root simplifications	: 1
c 
c CURRENT OPTIMUM=3852
c Current CPU time (ms) : 0.651
c starts	: 2
c conflicts	: 6
c decisions	: 45
c propagations	: 114
c inspects	: 167
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 6
c root simplifications	: 2
c 
c CURRENT OPTIMUM=3809
c Current CPU time (ms) : 1.314
c starts	: 3
c conflicts	: 17
c decisions	: 72
c propagations	: 205
c inspects	: 396
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 17
c root simplifications	: 3
c 
c CURRENT OPTIMUM=3761
c Current CPU time (ms) : 1.793
c starts	: 4
c conflicts	: 20
c decisions	: 84
c propagations	: 259
c inspects	: 547
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 20
c root simplifications	: 4
c 
c CURRENT OPTIMUM=3550
c Current CPU time (ms) : 1.944
c starts	: 5
c conflicts	: 24
c decisions	: 99
c propagations	: 305
c inspects	: 685
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 24
c root simplifications	: 5
c 
c CURRENT OPTIMUM=3302
c Current CPU time (ms) : 1.998
c starts	: 6
c conflicts	: 26
c decisions	: 112
c propagations	: 346
c inspects	: 819
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 26
c root simplifications	: 6
c 
c CURRENT OPTIMUM=3095
c Current CPU time (ms) : 5.315
c starts	: 7
c conflicts	: 67
c decisions	: 166
c propagations	: 661
c inspects	: 2507
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 67
c root simplifications	: 8
c 
c CURRENT OPTIMUM=3089
c Current CPU time (ms) : 7.005
c starts	: 8
c conflicts	: 116
c decisions	: 242
c propagations	: 1068
c inspects	: 6122
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 116
c root simplifications	: 9
c Total CPU time (ms) : 7.829
c 
s OPTIMUM FOUND
v C157_bit0 -C158_bit0 -C159_bit0 -C160_bit0 -C161_bit0 -C162_bit0 C163_bit0 C164_bit0 -C165_bit0 C166_bit0 -C167_bit0 -C168_bit0 -C169_bit0 C170_bit0 -C171_bit0 -C172_bit0 -C173_bit0 C174_bit0 C175_bit0 -C176_bit0 -C177_bit0 C178_bit0 C179_bit0 C180_bit0 -C181_bit0 C182_bit0 C183_bit0 C184_bit0 C185_bit0 C186_bit0 -C187_bit0 -C188_bit0 -C189_bit0 
c objectif function=3089
#### 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): 0.67 0.94 0.95 2/54 8776
Raw data (stat): 8776 (runsolver) R 8775 3260 3259 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 546973281 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+8.88382 s]
Raw data (loadavg): 0.88 0.98 0.96 1/53 8795
Raw data (stat): 8776 (runsolver) R 8775 3260 3259 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 546973281 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: 0

Child status: 30
Real time (s): 8.88352
CPU time (s): 16.3595
CPU user time (s): 15.7606
CPU system time (s): 0.598908
CPU usage (%): 184.156
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	3089
#### END VERIFIER DATA ####