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/MIPLIB/miplib/normalized-mps-v2-13-7-stein15.opb
MD5SUM	1ba73005c8de78676c6470b921b3912e
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	9
Optimality of the best value was proved	NO
Number of terms in the objective function	15
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	15
Number of bits of the sum of numbers in the objective function	4
Biggest number in a constraint	7
Number of bits of the biggest number in a constraint	3
Biggest sum of numbers in a constraint	22
Number of bits of the biggest sum of numbers	5
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	0.015997
Number of variables	15
Total number of constraints	51
Number of constraints which are clauses	35
Number of constraints which are cardinality constraints (but not clauses)	16
Number of constraints which are nor clauses,nor cardinality constraints	0
Minimum length of a constraint	1
Maximum length of a constraint	15

Trace number 34259

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc9 THE 2005-05-27 21:30:48 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=17311 boxname=wulflinc9 idbench=1332 idsolver=8 numberseed=0
MD5SUM SOLVER: 4b637b3b6117f2add1a6288e91336322  /oldhome/oroussel/solvers/vallstSAT2005PB.sh
MD5SUM BENCH:  1ba73005c8de78676c6470b921b3912e  /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-13-7-stein15.opb
REAL COMMAND:  vallstSAT2005PB.sh /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-13-7-stein15.opb 0
IDLAUNCH: 17311
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.242
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		: 451.242
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:        737276 kB
Buffers:         13284 kB
Cached:         260464 kB
SwapCached:        564 kB
Active:          19692 kB
Inactive:       256104 kB
HighTotal:      131008 kB
HighFree:        86016 kB
LowTotal:       903652 kB
LowFree:        651260 kB
SwapTotal:     2097136 kB
SwapFree:      2095636 kB
Dirty:            1456 kB
Writeback:           0 kB
Mapped:           5124 kB
Slab:            15968 kB
Committed_AS:    63588 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-27 21:30:49 (client local time) WITH STATUS 30 IN 0.200968 SECONDS
stats: 17311 0 0.200968 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
1:
seed: 0
Nr of vars set: 0  (#equs: 0)
Nr of vars set: 0  (#equs: 0)
#decisions: 11;  #end-nodes: 0;
#proof improvement attempts: 0;  #restarts: 0
Current batch, end-nodes: 0 / 80 (80)
#axs: 37, #non-axs: 0
tight: meta-meta: start: 6, end: 9;  meta: start: 12, end (keep): 23
loose: meta-meta: start: 9, end: 14;  meta: start: 30, end (keep): 50
result: model found (1)
Model found with constant:  4 (10:>=*);
#decisions: 12;  #end-nodes: 3;
#proof improvement attempts: 0;  #restarts: 0
Current batch, end-nodes: 3 / 80 (80)
#axs: 37, #non-axs: 3
tight: meta-meta: start: 6, end: 9;  meta: start: 12, end (keep): 23
loose: meta-meta: start: 9, end: 14;  meta: start: 30, end (keep): 50
Model found with constant:  5 (9:>=*);
#decisions: 329;  #end-nodes: 330;
#proof improvement attempts: 0;  #restarts: 0
Current batch, end-nodes: 330 / 801 (80)
#axs: 37, #non-axs: 326
tight: meta-meta: start: 6, end: 9;  meta: start: 12, end (keep): 23
loose: meta-meta: start: 9, end: 14;  meta: start: 30, end (keep): 50
Model found with constant:
  (pushed:) 5 (9:>=*)

With an increment of the last pushed constant, a proof of false was found.
result: proof of false found (0)
seed: 0
Nr of vars set: 15  (#equs: 0)
Time taken in milliseconds: 70
times:
0m0.016s 0m0.008s
0m0.054s 0m0.034s
v  V0001_bit0  V0002_bit0 -V0003_bit0 -V0004_bit0  V0005_bit0  V0006_bit0  V0007_bit0 -V0008_bit0 -V0009_bit0 -V0010_bit0  V0011_bit0  V0012_bit0  V0013_bit0  V0014_bit0 -V0015_bit0 
s OPTIMUM FOUND
#### 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): 0.79 0.92 0.97 1/54 12278
Raw data (stat): 12278 (runsolver) R 12277 3944 3943 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 801194953 884736 94 4294967295 134512640 135332820 3221224448 3221219612 135092226 0 0 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+0.572931 s]
Raw data (loadavg): 0.79 0.92 0.97 1/53 12291
Raw data (stat): 12278 (runsolver) R 12277 3944 3943 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 801194953 884736 94 4294967295 134512640 135332820 3221224448 3221219612 135092226 0 0 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): 0.572698
CPU time (s): 0.200968
CPU user time (s): 0.099984
CPU system time (s): 0.100984
CPU usage (%): 35.0914
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	9
#### END VERIFIER DATA ####