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/www.csit.fsu.edu/~burkardt/datasets/mps/normalized-mps-v2-13-7-nazareth.opb
MD5SUM	25b0f49e8e3ab43f9f405cabc9317ea8
Bench Category	optimization, medium integers (OPTMEDINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	-1048575
Optimality of the best value was proved	NO
Number of terms in the objective function	55
Biggest coefficient in the objective function	1048576
Number of bits for the biggest coefficient in the objective function	21
Sum of the numbers in the objective function	3162109
Number of bits of the sum of numbers in the objective function	22
Biggest number in a constraint	5244800
Number of bits of the biggest number in a constraint	23
Biggest sum of numbers in a constraint	19924855
Number of bits of the biggest sum of numbers	25
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	0.008998
Number of variables	55
Total number of constraints	3
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	0
Number of constraints which are nor clauses,nor cardinality constraints	3
Minimum length of a constraint	14
Maximum length of a constraint	41

Trace number 30149

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-05-25 15:45:14 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=21581 boxname=wulflinc6 idbench=1569 idsolver=14 numberseed=0
MD5SUM SOLVER: d29da23ec752be69e0579424c0f0767e  /oldhome/oroussel/solvers/sat4jPseudoBis.jar
MD5SUM BENCH:  25b0f49e8e3ab43f9f405cabc9317ea8  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-13-7-nazareth.opb
REAL COMMAND:  java -server -Xms650M -Xmx650M -jar /oldhome/oroussel/solvers/sat4jPseudoBis.jar /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-13-7-nazareth.opb
IDLAUNCH: 21581
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.042
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		: 451.042
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:        690716 kB
Buffers:         33892 kB
Cached:         285500 kB
SwapCached:        412 kB
Active:          90192 kB
Inactive:       231464 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        690464 kB
SwapTotal:     2097136 kB
SwapFree:      2096036 kB
Dirty:              44 kB
Writeback:           0 kB
Mapped:           5692 kB
Slab:            16716 kB
Committed_AS:    63732 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-25 15:45:17 (client local time) WITH STATUS 30 IN 1.64775 SECONDS
stats: 21581 0 1.64775 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c SAT4J: a SATisfiability library for Java (c) 2004-2005 Daniel Le Berre
c This is free software under the GNU LGPL licence. See www.sat4j.org for details.
c version Special PB05 Second trial
c --- Begin Solver configuration ---
c org.sat4j.minisat.uip.FirstUIP@1e4cbc4
c org.sat4j.minisat.constraints.PBMinDataStructure@1fdc96c
c org.sat4j.minisat.learning.MiniSATLearning@b2fd8f
c conflictBoundIncFactor=1.5 learntBoundIncFactor=1.1 initLearntBoundConstraintFactor=0.5 initConflictBound=100 
c 
c --- End Solver configuration ---
c solving /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-13-7-nazareth.opb
c reading problem ... done. Time 0.184 ms.
c #vars     55
c #constraints  3
c SATISFIABLE
c OPTIMIZING...
c CURRENT OPTIMUM=                   0 		Current CPU time: 0.20 ms
c CURRENT OPTIMUM=             -524288 		Current CPU time: 0.30 ms
c CURRENT OPTIMUM=             -786432 		Current CPU time: 0.46 ms
c CURRENT OPTIMUM=             -917504 		Current CPU time: 0.72 ms
c CURRENT OPTIMUM=             -983040 		Current CPU time: 0.74 ms
c CURRENT OPTIMUM=            -1015808 		Current CPU time: 0.76 ms
c CURRENT OPTIMUM=            -1032192 		Current CPU time: 0.78 ms
c CURRENT OPTIMUM=            -1040384 		Current CPU time: 0.80 ms
c CURRENT OPTIMUM=            -1044480 		Current CPU time: 0.82 ms
c CURRENT OPTIMUM=            -1046528 		Current CPU time: 0.83 ms
c CURRENT OPTIMUM=            -1047552 		Current CPU time: 0.85 ms
c CURRENT OPTIMUM=            -1048064 		Current CPU time: 0.87 ms
c CURRENT OPTIMUM=            -1048320 		Current CPU time: 0.88 ms
c CURRENT OPTIMUM=            -1048448 		Current CPU time: 0.90 ms
c CURRENT OPTIMUM=            -1048512 		Current CPU time: 0.91 ms
c CURRENT OPTIMUM=            -1048544 		Current CPU time: 0.93 ms
c CURRENT OPTIMUM=            -1048560 		Current CPU time: 0.94 ms
c CURRENT OPTIMUM=            -1048568 		Current CPU time: 0.96 ms
c CURRENT OPTIMUM=            -1048572 		Current CPU time: 0.98 ms
c CURRENT OPTIMUM=            -1048574 		Current CPU time: 0.99 ms
c CURRENT OPTIMUM=            -1048575 		Current CPU time: 1.00 ms
c starts	: 21
c conflicts	: 0
c decisions	: 623
c propagations	: 716
c inspects	: 367
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 0
c root simplifications	: 21
s OPTIMUM_FOUND
v -CLNAM1_bit_7 -CLNAM1_bit_6 -CLNAM1_bit_5 -CLNAM1_bit_4 -CLNAM1_bit_3 -CLNAM1_bit_2 -CLNAM1_bit_1 -CLNAM1_bit0 -CLNAM1_bit1 -CLNAM1_bit2 -CLNAM1_bit3 -CLNAM1_bit4 -CLNAM1_bit5 -CLNAM1_bit6 CLNAM2_bit_7 CLNAM2_bit_6 CLNAM2_bit_5 CLNAM2_bit_4 CLNAM2_bit_3 CLNAM2_bit_2 CLNAM2_bit_1 CLNAM2_bit0 CLNAM2_bit1 CLNAM2_bit2 CLNAM2_bit3 CLNAM2_bit4 CLNAM2_bit5 CLNAM2_bit6 CLNAM2_bit7 CLNAM2_bit8 CLNAM2_bit9 CLNAM2_bit10 CLNAM2_bit11 CLNAM2_bit12 -CLNAM3_bit_7 -CLNAM3_bit_6 -CLNAM3_bit_5 -CLNAM3_bit_4 -CLNAM3_bit_3 -CLNAM3_bit_2 -CLNAM3_bit_1 -CLNAM3_bit0 -CLNAM3_bit1 -CLNAM3_bit2 -CLNAM3_bit3 -CLNAM3_bit4 -CLNAM3_bit5 -CLNAM3_bit6 -CLNAM3_bit7 -CLNAM3_bit8 -CLNAM3_bit9 -CLNAM3_bit10 -CLNAM3_bit11 -CLNAM3_bit12 -CLNAM3_bit13 
c objectif function=-1048575
c Total CPU time (ms) : 1.012
#### 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 0.98 0.99 2/54 8534
Raw data (stat): 8534 (runsolver) R 8533 25568 25567 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 781839350 1052672 99 4294967295 134512640 135381576 3221224400 3221219620 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+1.95639 s]
Raw data (loadavg): 0.92 0.98 0.99 1/53 8565
Raw data (stat): 8534 (runsolver) R 8533 25568 25567 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 781839350 1052672 99 4294967295 134512640 135381576 3221224400 3221219620 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 0

Child status: 30
Real time (s): 1.95609
CPU time (s): 1.64775
CPU user time (s): 1.53477
CPU system time (s): 0.112982
CPU usage (%): 84.237
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	-1048575
#### END VERIFIER DATA ####