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/submitted/een/normalized-stein27.opb
MD5SUM	f1840a9f0b03b6ae7284b9e5be9bb3b7
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	18
Optimality of the best value was proved	NO
Number of terms in the objective function	27
Biggest coefficient in the objective function	1
Number of bits for the biggest coefficient in the objective function	1
Sum of the numbers in the objective function	27
Number of bits of the sum of numbers in the objective function	5
Biggest number in a constraint	13
Number of bits of the biggest number in a constraint	4
Biggest sum of numbers in a constraint	40
Number of bits of the biggest sum of numbers	6
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	1.02084
Number of variables	27
Total number of constraints	118
Number of constraints which are clauses	117
Number of constraints which are cardinality constraints (but not clauses)	1
Number of constraints which are nor clauses,nor cardinality constraints	0
Minimum length of a constraint	3
Maximum length of a constraint	27

Trace number 7061

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc25 THE 2005-04-14 21:28:22 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=5171 boxname=wulflinc25 idbench=398 idsolver=10 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  f1840a9f0b03b6ae7284b9e5be9bb3b7  /oldhome/oroussel/tmp/wulflinc25/normalized-stein27.opb
REAL COMMAND:  minisat+ -ca /oldhome/oroussel/tmp/wulflinc25/normalized-stein27.opb /oldhome/oroussel/tmp/wulflinc25/normalized-stein27.opb
IDLAUNCH: 5171
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.220
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		: 451.220
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:        830012 kB
Buffers:         35440 kB
Cached:         134524 kB
SwapCached:         36 kB
Active:          56728 kB
Inactive:       116156 kB
HighTotal:      131008 kB
HighFree:          896 kB
LowTotal:       903652 kB
LowFree:        829116 kB
SwapTotal:     2097892 kB
SwapFree:      2097856 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6920 kB
Slab:            26152 kB
Committed_AS:    63484 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-04-14 21:28:23 (client local time) WITH STATUS 30 IN 1.2958 SECONDS
stats: 5171 0 1.2958 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
c Converting 118 PB-constraints to clauses...
c   -- Unit propagations: (none)
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): .....................................................................................................................
c ---[   0]---> Adder-cost: 46   maxlim: 12   bits: 5/4
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |     424     1442 |     141       0        0     nan |  0.000 % |
c ==============================================================================
c [1mFound solution: 20[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 3   maxlim: 7   bits: 4/3
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         8 |     427     1450 |     142       8       26     3.2 |  0.000 % |
c ==============================================================================
c [1mFound solution: 19[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 2   maxlim: 8   bits: 5/4
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        31 |     449     1535 |     149      31      125     4.0 |  0.000 % |
c ==============================================================================
c [1mFound solution: 18[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 0   maxlim: 9   bits: 5/4
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        33 |     450     1540 |     150      33      160     4.8 |  0.000 % |
c |       133 |     450     1540 |     165     133     1119     8.4 |  8.463 % |
c |       283 |     450     1540 |     181     101      809     8.0 |  8.463 % |
c |       509 |     450     1540 |     199     124      998     8.0 |  8.448 % |
c |       846 |     450     1540 |     219     135      915     6.8 |  8.448 % |
c |      1352 |     450     1540 |     241     162     1052     6.5 |  8.449 % |
c |      2111 |     450     1540 |     265     262     1893     7.2 |  8.449 % |
c |      3250 |     450     1540 |     292     271     1890     7.0 |  8.448 % |
c |      4959 |     450     1540 |     321     273     1659     6.1 |  8.464 % |
c |      7523 |     450     1540 |     353     274     1662     6.1 |  8.478 % |
c |     11368 |     445     1521 |     389     212     1101     5.2 |  9.682 % |
c |     17134 |     426     1460 |     427     270     1439     5.3 | 10.916 % |
c ==============================================================================
c [1mOptimal solution: 18[0m
s OPTIMUM FOUND
v x0 x1 x2 -x3 -x4 x5 -x6 -x7 x8 -x9 x10 x11 x12 -x13 -x14 x15 -x16 x17 -x18 x19 x20 x21 x22 x23 x24 x25 x26
c _______________________________________________________________________________
c 
c restarts              : 15
c conflicts             : 19724          (15352 /sec)
c decisions             : 21984          (17111 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 1.2848 s
c _______________________________________________________________________________
#### 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): 0.83 0.93 0.90 2/54 7219
Raw data (stat): 7219 (runsolver) R 7218 28099 28098 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 487842603 1052672 99 4294967295 134512640 135381576 3221224464 3221219708 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+1.30415 s]
Raw data (loadavg): 0.83 0.93 0.90 1/53 7219
Raw data (stat): 7219 (runsolver) R 7218 28099 28098 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 487842603 1052672 99 4294967295 134512640 135381576 3221224464 3221219708 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): 1.30386
CPU time (s): 1.2958
CPU user time (s): 1.2858
CPU system time (s): 0.009998
CPU usage (%): 99.3819
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	18
#### END VERIFIER DATA ####