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-enigma.opb
MD5SUM	5e9580fe545ab388653fc9b4ad4fa7c7
Bench Category	optimization, medium integers (OPTMEDINT)
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	9
Biggest coefficient in the objective function	9
Number of bits for the biggest coefficient in the objective function	4
Sum of the numbers in the objective function	45
Number of bits of the sum of numbers in the objective function	6
Biggest number in a constraint	900207
Number of bits of the biggest number in a constraint	20
Biggest sum of numbers in a constraint	9782371
Number of bits of the biggest sum of numbers	24
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	0.009997
Number of variables	100
Total number of constraints	42
Number of constraints which are clauses	20
Number of constraints which are cardinality constraints (but not clauses)	20
Number of constraints which are nor clauses,nor cardinality constraints	2
Minimum length of a constraint	9
Maximum length of a constraint	90

Trace number 33835

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-05-27 17:07:43 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=5195 boxname=wulflinc4 idbench=400 idsolver=8 numberseed=0
MD5SUM SOLVER: 4b637b3b6117f2add1a6288e91336322  /oldhome/oroussel/solvers/vallstSAT2005PB.sh
MD5SUM BENCH:  5e9580fe545ab388653fc9b4ad4fa7c7  /oldhome/oroussel/tmp/wulflinc4/normalized-enigma.opb
REAL COMMAND:  vallstSAT2005PB.sh /oldhome/oroussel/tmp/wulflinc4/normalized-enigma.opb 0
IDLAUNCH: 5195
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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		: 451.169
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:        702280 kB
Buffers:         31188 kB
Cached:         280972 kB
SwapCached:        504 kB
Active:          39316 kB
Inactive:       275168 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        702028 kB
SwapTotal:     2097136 kB
SwapFree:      2096000 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           5788 kB
Slab:            12248 kB
Committed_AS:    71792 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-27 17:07:45 (client local time) WITH STATUS 30 IN 2.18067 SECONDS
stats: 5195 0 2.18067 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
1:
seed: 0
Nr of vars set: 0  (#equs: 0)
Nr of vars set: 1  (#equs: 0)
#decisions: 32;  #end-nodes: 0;
#proof improvement attempts: 0;  #restarts: 0
Current batch, end-nodes: 0 / 80 (80)
#axs: 43, #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:  41 (3:>=*);
#decisions: 27;  #end-nodes: 0;
#proof improvement attempts: 0;  #restarts: 0
Current batch, end-nodes: 0 / 80 (80)
#axs: 43, #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
Model found with constant:  44 (0:>=*);
Model found with constant:
  (pushed:) 41 (3:>=*)

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: 8  (#equs: 0)
Time taken in milliseconds: 2010
times:
0m0.019s 0m0.007s
0m1.949s 0m0.085s
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 -x27 -x28 -x29 -x30 -x31 -x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 -x40 -x41 -x42  x43 -x44 -x45 -x46 -x47 -x48 -x49 -x50 -x51 -x52 -x53  x54 -x55 -x56 -x57  x58 -x59 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70  x71 -x72  x73 -x74 -x75 -x76 -x77 -x78 -x79 -x80 -x81 -x82 -x83 -x84 -x85 -x86  x87 -x88 -x89 -x90 -x91 -x92 -x93 -x94  x95 -x96 -x97 -x98 -x99 
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
Raw data (loadavg): 1.00 1.00 0.93 2/54 23583
Raw data (stat): 23583 (runsolver) R 23582 21152 21151 0 -1 64 3 0 0 0 0 0 0 0 19 0 1 0 799608805 884736 93 4294967295 134512640 135332820 3221224464 3221219508 134703346 0 0 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 93 205 205 0 11 0
vsize: 864
Current StackSize limit: 67108864 bytes
[startup+2.55298 s]
Raw data (loadavg): 1.00 1.00 0.93 1/53 23596
Raw data (stat): 23583 (runsolver) R 23582 21152 21151 0 -1 64 3 0 0 0 0 0 0 0 19 0 1 0 799608805 884736 93 4294967295 134512640 135332820 3221224464 3221219508 134703346 0 0 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 93 205 205 0 11 0
vsize: 0

Child status: 30
Real time (s): 2.55275
CPU time (s): 2.18067
CPU user time (s): 2.01969
CPU system time (s): 0.160975
CPU usage (%): 85.4242
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	0
#### END VERIFIER DATA ####