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-pk1.opb
MD5SUM	fe0e5f3c1b66147fb7b1ccf35b46b343
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	0
Optimality of the best value was proved	NO
Number of terms in the objective function	1
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	1
Number of bits of the sum of numbers in the objective function	1
Biggest number in a constraint	1055
Number of bits of the biggest number in a constraint	11
Biggest sum of numbers in a constraint	2852
Number of bits of the biggest sum of numbers	12
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	0.019996
Number of variables	86
Total number of constraints	60
Number of constraints which are clauses	30
Number of constraints which are cardinality constraints (but not clauses)	0
Number of constraints which are nor clauses,nor cardinality constraints	30
Minimum length of a constraint	2
Maximum length of a constraint	57

Trace number 42271

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 04:53:27 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25492 boxname=wulflinc3 idbench=394 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  fe0e5f3c1b66147fb7b1ccf35b46b343  /oldhome/oroussel/tmp/wulflinc3/normalized-pk1.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-pk1.opb
IDLAUNCH: 25492
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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	: 2
cpu MHz		: 451.190
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:        799968 kB
Buffers:         34264 kB
Cached:         178776 kB
SwapCached:        820 kB
Active:          54288 kB
Inactive:       160904 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        799716 kB
SwapTotal:     2097136 kB
SwapFree:      2095340 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5100 kB
Slab:            13684 kB
Committed_AS:    71900 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 04:53:53 (client local time) WITH STATUS 30 IN 25.6361 SECONDS
stats: 25492 0 25.6361 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 1
c small objective detected
c CONFLICT during preprocess 
c [startup+24.7575 s]  setting bit 0 to 0
s OPTIMUM FOUND
v x0 x1 -x10 -x11 x12 -x13 x14 -x15 -x16 -x17 -x18 x19 x2 x20 -x21 -x22 -x23 -x24 x25 -x26 -x27 -x28 x29 -x3 -x30 x31 -x32 x33 -x34 -x35 x36 x37 -x38 -x39 x4 x40 -x41 x42 -x43 -x44 x45 -x46 -x47 x48 -x49 -x5 x50 -x51 x52 x53 -x54 -x55 -x56 -x57 x58 -x59 -x6 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 x7 -x70 -x71 -x72 -x73 -x74 -x75 -x76 -x77 -x78 -x79 -x8 -x80 -x81 -x82 -x83 -x84 -x85 -x9 
#### 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
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.90 0.95 0.91 1/54 16029
Raw data (stat): 16029 (runsolver) R 16028 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968025265 884736 94 4294967295 134512640 135332820 3221224480 3221219660 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0009 s]
Raw data (loadavg): 0.91 0.95 0.91 2/54 16029
Raw data (stat): 16029 (pb2sat-v2) R 16028 20224 20223 0 -1 0 26426 0 0 0 940 58 0 0 25 0 1 0 968025265 76902400 15477 4294967295 134512640 135730672 3221224592 3221207060 135281209 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 18775 15477 301 301 0 18474 0
vsize: 75100
[startup+20.0022 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 16029
Raw data (stat): 16029 (pb2sat-v2) R 16028 20224 20223 0 -1 0 52128 0 0 0 1889 109 0 0 25 0 1 0 968025265 151134208 30217 4294967295 134512640 135730672 3221224592 3221210260 135282779 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 36898 30217 301 301 0 36597 0
vsize: 147592
[startup+25.6526 s]
Raw data (loadavg): 0.93 0.95 0.91 1/53 16029
Raw data (stat): 16029 (pb2sat-v2) R 16028 20224 20223 0 -1 0 52128 0 0 0 1889 109 0 0 25 0 1 0 968025265 151134208 30217 4294967295 134512640 135730672 3221224592 3221210260 135282779 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 36898 30217 301 301 0 36597 0
vsize: 0

Child status: 30
Real time (s): 25.6524
CPU time (s): 25.6361
CPU user time (s): 24.3623
CPU system time (s): 1.27381
CPU usage (%): 99.9365
Max. virtual memory (Kb): 147592
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	1
#### END VERIFIER DATA ####