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/www.csit.fsu.edu/~burkardt/datasets/mps/normalized-mps-v2-20-10-testprob.opb
MD5SUM	da2667b4c8b643a355efc1f418e48913
Bench Category	optimization, big integers (OPTBIGINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	2147483647
Optimality of the best value was proved	NO
Number of terms in the objective function	56
Biggest coefficient in the objective function	9663676416
Number of bits for the biggest coefficient in the objective function	34
Sum of the numbers in the objective function	19327377394
Number of bits of the sum of numbers in the objective function	35
Biggest number in a constraint	9663676416
Number of bits of the biggest number in a constraint	34
Biggest sum of numbers in a constraint	19327377394
Number of bits of the biggest sum of numbers	35
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	0.087986
Number of variables	56
Total number of constraints	5
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	5
Minimum length of a constraint	12
Maximum length of a constraint	44

Trace number 42664

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-16 13:37:10 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25885 boxname=wulflinc1 idbench=1185 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  da2667b4c8b643a355efc1f418e48913  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-testprob.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-testprob.opb
IDLAUNCH: 25885
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        780348 kB
Buffers:         17444 kB
Cached:         212736 kB
SwapCached:       1156 kB
Active:          23196 kB
Inactive:       209256 kB
HighTotal:      131008 kB
HighFree:        39480 kB
LowTotal:       903652 kB
LowFree:        740868 kB
SwapTotal:     2097136 kB
SwapFree:      2094896 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5364 kB
Slab:            16048 kB
Committed_AS:    92716 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 13:37:11 (client local time) WITH STATUS 30 IN 0.471927 SECONDS
stats: 25885 0 0.471927 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: 9663744996
c small objective detected
c CONFLICT during preprocess 
c [startup+0.123284 s]  setting bit 34 to 0
c CONFLICT during preprocess 
c [startup+0.130777 s]  setting bit 33 to 0
c CONFLICT during preprocess 
c [startup+0.138282 s]  setting bit 32 to 0
c CONFLICT during preprocess 
c [startup+0.146011 s]  setting bit 31 to 0
c CONFLICT during preprocess 
c [startup+0.153861 s]  setting bit 30 to 0
c CONFLICT during preprocess 
c [startup+0.16181 s]  setting bit 29 to 0
c CONFLICT during preprocess 
c [startup+0.169849 s]  setting bit 28 to 0
c CONFLICT during preprocess 
c [startup+0.177995 s]  setting bit 27 to 0
c CONFLICT during preprocess 
c [startup+0.186209 s]  setting bit 26 to 0
c CONFLICT during preprocess 
c [startup+0.194558 s]  setting bit 25 to 0
c CONFLICT during preprocess 
c [startup+0.203013 s]  setting bit 24 to 0
c CONFLICT during preprocess 
c [startup+0.211478 s]  setting bit 23 to 0
c CONFLICT during preprocess 
c [startup+0.220028 s]  setting bit 22 to 0
c CONFLICT during preprocess 
c [startup+0.228601 s]  setting bit 21 to 0
c CONFLICT during preprocess 
c [startup+0.23723 s]  setting bit 20 to 0
c CONFLICT during preprocess 
c [startup+0.245894 s]  setting bit 19 to 0
c CONFLICT during preprocess 
c [startup+0.254613 s]  setting bit 18 to 0
c CONFLICT during preprocess 
c [startup+0.263376 s]  setting bit 17 to 0
c CONFLICT during preprocess 
c [startup+0.272394 s]  setting bit 16 to 0
c CONFLICT during preprocess 
c [startup+0.281343 s]  setting bit 15 to 0
c got solution with objective value: 9663728228
c [startup+0.295766 s]  setting bit 14 to 1
c CONFLICT during preprocess 
c [startup+0.304961 s]  setting bit 13 to 0
c CONFLICT during preprocess 
c [startup+0.31458 s]  setting bit 12 to 0
c CONFLICT during preprocess 
c [startup+0.326422 s]  setting bit 11 to 0
c got solution with objective value: 9663726981
c [startup+0.339854 s]  setting bit 10 to 1
c got solution with objective value: 9663726773
c [startup+0.352383 s]  setting bit 9 to 1
c got solution with objective value: 9663726773
c [startup+0.364877 s]  setting bit 8 to 1
c got solution with objective value: 9663726690
c [startup+0.377711 s]  setting bit 7 to 1
c got solution with objective value: 9663726616
c [startup+0.390485 s]  setting bit 6 to 1
c got solution with objective value: 9663726592
c [startup+0.405769 s]  setting bit 5 to 1
c CONFLICT during preprocess 
c [startup+0.419628 s]  setting bit 4 to 0
c CONFLICT during preprocess 
c [startup+0.429284 s]  setting bit 3 to 0
c CONFLICT during preprocess 
c [startup+0.438903 s]  setting bit 2 to 0
c got solution with objective value: 9663726592
c [startup+0.451467 s]  setting bit 1 to 1
c got solution with objective value: 9663726592
c [startup+0.463849 s]  setting bit 0 to 1
s OPTIMUM FOUND
v -X1_bit0 -X1_bit1 X1_bit2 -X1_bit_1 -X1_bit_10 -X1_bit_2 -X1_bit_3 -X1_bit_4 -X1_bit_5 -X1_bit_6 -X1_bit_7 -X1_bit_8 -X1_bit_9 -X2_bit0 -X2_bit1 -X2_bit_1 -X2_bit_10 -X2_bit_2 -X2_bit_3 -X2_bit_4 -X2_bit_5 -X2_bit_6 -X2_bit_7 -X2_bit_8 -X2_bit_9 X3_bit0 -X3_bit1 -X3_bit10 -X3_bit11 -X3_bit12 -X3_bit13 -X3_bit14 -X3_bit15 -X3_bit16 -X3_bit17 -X3_bit18 -X3_bit19 X3_bit2 X3_bit20 -X3_bit3 -X3_bit4 -X3_bit5 -X3_bit6 -X3_bit7 -X3_bit8 -X3_bit9 -X3_bit_1 -X3_bit_10 -X3_bit_2 -X3_bit_3 -X3_bit_4 -X3_bit_5 -X3_bit_6 -X3_bit_7 -X3_bit_8 -X3_bit_9 
#### 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 0.93 0.90 2/55 19322
Raw data (stat): 19322 (runsolver) R 19321 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 914319921 884736 94 4294967295 134512640 135332820 3221224464 3221219644 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+0.479074 s]
Raw data (loadavg): 0.90 0.93 0.90 1/54 19322
Raw data (stat): 19322 (runsolver) R 19321 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 914319921 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 0

Child status: 30
Real time (s): 0.478791
CPU time (s): 0.471927
CPU user time (s): 0.45493
CPU system time (s): 0.016997
CPU usage (%): 98.5664
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	9663726592
#### END VERIFIER DATA ####