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/sorensson/garden/normalized-g7x7.opb
MD5SUM	0cf87a0fcd2352953842751bd4aefa7f
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	12
Optimality of the best value was proved	NO
Number of terms in the objective function	49
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	49
Number of bits of the sum of numbers in the objective function	6
Biggest number in a constraint	1
Number of bits of the biggest number in a constraint	1
Biggest sum of numbers in a constraint	49
Number of bits of the biggest sum of numbers	6
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	0.083986
Number of variables	49
Total number of constraints	49
Number of constraints which are clauses	49
Number of constraints which are cardinality constraints (but not clauses)	0
Number of constraints which are nor clauses,nor cardinality constraints	0
Minimum length of a constraint	3
Maximum length of a constraint	5

Trace number 6397

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc11 THE 2005-04-14 05:12:23 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=4893 boxname=wulflinc11 idbench=377 idsolver=5 numberseed=0
MD5SUM SOLVER: 1d62365061f6d70b1a242542b016b2e4  /oldhome/oroussel/solvers/minisat+
MD5SUM BENCH:  0cf87a0fcd2352953842751bd4aefa7f  /oldhome/oroussel/tmp/wulflinc11/normalized-g7x7.opb
REAL COMMAND:  minisat+ /oldhome/oroussel/tmp/wulflinc11/normalized-g7x7.opb
IDLAUNCH: 4893
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.028
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		: 451.028
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:        890000 kB
Buffers:         36336 kB
Cached:          83512 kB
SwapCached:       4932 kB
Active:          59496 kB
Inactive:        68136 kB
HighTotal:      131008 kB
HighFree:        43736 kB
LowTotal:       903652 kB
LowFree:        846264 kB
SwapTotal:     2097136 kB
SwapFree:      2092204 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6924 kB
Slab:            11408 kB
Committed_AS:    63476 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-14 05:12:24 (client local time) WITH STATUS 30 IN 0.289955 SECONDS
stats: 4893 0 0.289955 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
c Converting 49 PB-constraints to clauses...
c   -- Unit propagations: (none)
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): .................................................
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |      49      217 |      16       0        0     nan |  0.000 % |
c ==============================================================================
c [1mFound solution: 17[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:  788     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |     907     2225 |     302       0        0     nan |  0.000 % |
c ==============================================================================
c [1mFound solution: 14[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    0     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        69 |     903     2222 |     301      67      619     9.2 |  0.000 % |
c |       170 |     898     2211 |     331     167     1942    11.6 |  4.516 % |
c |       321 |     898     2211 |     364     318     4010    12.6 |  4.516 % |
c ==============================================================================
c [1mFound solution: 13[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    0     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       343 |     872     2148 |     290     338     4335    12.8 |  4.516 % |
c |       444 |     862     2128 |     319     265     3173    12.0 |  8.683 % |
c |       595 |     862     2128 |     350     416     5086    12.2 |  8.682 % |
c |       820 |     862     2128 |     385     433     4631    10.7 |  8.682 % |
c |      1157 |     862     2128 |     424     278     2052     7.4 |  8.682 % |
c ==============================================================================
c [1mFound solution: 12[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Sorter-cost:    0     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |      1298 |     874     2156 |     291     419     3543     8.5 |  8.682 % |
c |      1399 |     867     2141 |     320     308     2180     7.1 |  9.366 % |
c |      1549 |     867     2141 |     352     257     1684     6.6 |  9.365 % |
c ==============================================================================
c [1mOptimal solution: 12[0m
s OPTIMUM FOUND
v -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
c _______________________________________________________________________________
c 
c restarts              : 13
c conflicts             : 1747           (6354 /sec)
c decisions             : 2853           (10376 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 0.274958 s
c _______________________________________________________________________________
#### 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): 0.94 0.98 0.95 2/54 7678
Raw data (stat): 7678 (runsolver) R 7677 32461 32460 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 423752700 1052672 99 4294967295 134512640 135381576 3221224528 3221219772 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+0.297056 s]
Raw data (loadavg): 0.94 0.98 0.95 1/53 7678
Raw data (stat): 7678 (runsolver) R 7677 32461 32460 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 423752700 1052672 99 4294967295 134512640 135381576 3221224528 3221219772 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: 30
Real time (s): 0.296782
CPU time (s): 0.289955
CPU user time (s): 0.275958
CPU system time (s): 0.013997
CPU usage (%): 97.6996
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	12
#### END VERIFIER DATA ####