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/plato.asu.edu/pub/milp/normalized-mps-v2-13-7-neos5.opb
MD5SUM	4f5f6e30a602f3968daa9ca41c7da043
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	2058
Optimality of the best value was proved	NO
Number of terms in the objective function	133
Biggest coefficient in the objective function	128
Number of bits for the biggest coefficient in the objective function	8
Sum of the numbers in the objective function	9334
Number of bits of the sum of numbers in the objective function	14
Biggest number in a constraint	1024
Number of bits of the biggest number in a constraint	11
Biggest sum of numbers in a constraint	9334
Number of bits of the biggest sum of numbers	14
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	1.05284
Number of variables	133
Total number of constraints	126
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	56
Number of constraints which are nor clauses,nor cardinality constraints	70
Minimum length of a constraint	1
Maximum length of a constraint	81

Trace number 14511

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc23 THE 2005-04-21 00:26:12 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=19712 boxname=wulflinc23 idbench=1517 idsolver=4 numberseed=0
MD5SUM SOLVER: 1540ae3c74fe6bb56fea7dc39e0baf99  /oldhome/oroussel/solvers/galena
MD5SUM BENCH:  4f5f6e30a602f3968daa9ca41c7da043  /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-13-7-neos5.opb
REAL COMMAND:  galena /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-13-7-neos5.opb
IDLAUNCH: 19712
/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:        792600 kB
Buffers:         13312 kB
Cached:         198260 kB
SwapCached:        520 kB
Active:          64108 kB
Inactive:       149556 kB
HighTotal:      131008 kB
HighFree:          476 kB
LowTotal:       903652 kB
LowFree:        792124 kB
SwapTotal:     2097136 kB
SwapFree:      2095824 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           5220 kB
Slab:            22744 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-21 00:26:13 (client local time) WITH STATUS 10 IN 1.05284 SECONDS
stats: 19712 0 1.05284 10
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Decisions:	27903
c Implications:	107717
c RUNTIME:	1.00085s
v d1_bit0 d2_bit0 d3_bit0 d4_bit0 d5_bit0 d6_bit0 d7_bit0 d8_bit0 d9_bit0 d10_bit0 d11_bit0 d12_bit0 d13_bit0 d14_bit0 -d15_bit0 -d16_bit0 d17_bit0 d18_bit0 d19_bit0 d20_bit0 d21_bit0 d22_bit0 -d23_bit0 -d24_bit0 d25_bit0 -d26_bit0 -d27_bit0 -d28_bit0 -d29_bit0 -d30_bit0 -d31_bit0 -d32_bit0 -d33_bit0 -d34_bit0 -d35_bit0 -d36_bit0 -d37_bit0 -d38_bit0 -d39_bit0 -d40_bit0 -d41_bit0 -d42_bit0 -d43_bit0 -d44_bit0 -d45_bit0 -d46_bit0 -d47_bit0 -d48_bit0 -d49_bit0 -d50_bit0 -d51_bit0 -d52_bit0 -d53_bit0 d54_bit_7 d54_bit_6 d54_bit_5 d54_bit_4 d54_bit_3 d54_bit_2 -d54_bit_1 -d54_bit0 d55_bit_7 d55_bit_6 d55_bit_5 d55_bit_4 d55_bit_3 -d55_bit_2 -d55_bit_1 -d55_bit0 d56_bit_7 d56_bit_6 d56_bit_5 d56_bit_4 -d56_bit_3 -d56_bit_2 -d56_bit_1 -d56_bit0 d57_bit_7 d57_bit_6 d57_bit_5 -d57_bit_4 -d57_bit_3 -d57_bit_2 -d57_bit_1 -d57_bit0 d58_bit_7 d58_bit_6 -d58_bit_5 -d58_bit_4 -d58_bit_3 -d58_bit_2 -d58_bit_1 -d58_bit0 d59_bit_7 d59_bit_6 -d59_bit_5 -d59_bit_4 -d59_bit_3 -d59_bit_2 -d59_bit_1 -d59_bit0 -d60_bit_7 -d60_bit_6 -d60_bit_5 -d60_bit_4 -d60_bit_3 -d60_bit_2 -d60_bit_1 -d60_bit0 -d61_bit_7 -d61_bit_6 -d61_bit_5 -d61_bit_4 -d61_bit_3 -d61_bit_2 -d61_bit_1 -d61_bit0 -d62_bit_7 -d62_bit_6 -d62_bit_5 -d62_bit_4 -d62_bit_3 -d62_bit_2 -d62_bit_1 -d62_bit0 -d63_bit_7 -d63_bit_6 -d63_bit_5 -d63_bit_4 -d63_bit_3 -d63_bit_2 -d63_bit_1 -d63_bit0 
s SATISFIABLE
#### 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): 0.85 0.95 0.90 2/54 25607
Raw data (stat): 25607 (runsolver) R 25606 3260 3259 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 540746519 1052672 99 4294967295 134512640 135381576 3221224528 3221219776 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+1.05632 s]
Raw data (loadavg): 0.85 0.95 0.90 1/53 25607
Raw data (stat): 25607 (runsolver) R 25606 3260 3259 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 540746519 1052672 99 4294967295 134512640 135381576 3221224528 3221219776 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: 10
Real time (s): 1.05613
CPU time (s): 1.05284
CPU user time (s): 1.00385
CPU system time (s): 0.048992
CPU usage (%): 99.6885
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	2810
#### END VERIFIER DATA ####