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/manquinho/primes-dimacs-cnf/normalized-ssa2670-141.opb
MD5SUM	423b72910a463b7aa4b9bdae86b878a8
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	NO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function	1972
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	1972
Number of bits of the sum of numbers in the objective function	11
Biggest number in a constraint	1
Number of bits of the biggest number in a constraint	1
Biggest sum of numbers in a constraint	1972
Number of bits of the biggest sum of numbers	11
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	0.158974
Number of variables	1972
Total number of constraints	3301
Number of constraints which are clauses	3301
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	1
Maximum length of a constraint	5

Trace number 4904

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc8 THE 2005-04-13 21:06:18 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=2021 boxname=wulflinc8 idbench=225 idsolver=5 numberseed=0
MD5SUM SOLVER: 1d62365061f6d70b1a242542b016b2e4  /oldhome/oroussel/solvers/minisat+
MD5SUM BENCH:  423b72910a463b7aa4b9bdae86b878a8  /oldhome/oroussel/tmp/wulflinc8/normalized-ssa2670-141.opb
REAL COMMAND:  minisat+ /oldhome/oroussel/tmp/wulflinc8/normalized-ssa2670-141.opb
IDLAUNCH: 2021
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.007
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		: 451.007
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:        912824 kB
Buffers:         36648 kB
Cached:          65828 kB
SwapCached:          0 kB
Active:          72424 kB
Inactive:        32916 kB
HighTotal:      131008 kB
HighFree:        61292 kB
LowTotal:       903652 kB
LowFree:        851532 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              36 kB
Writeback:           0 kB
Mapped:           6932 kB
Slab:            10976 kB
Committed_AS:    63476 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-13 21:06:19 (client local time) WITH STATUS 20 IN 0.164974 SECONDS
stats: 2021 7 0.164974 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
c Converting 3288 PB-constraints to clauses...
c   -- Unit propagations: pppppppppppppppppppppp
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 |    3251     7102 |    1083       0        0     nan |  0.000 % |
c |       100 |    3201     6995 |    1191      82     1155    14.1 |  2.739 % |
c |       251 |    3166     6921 |    1310     199     1968     9.9 | 18.357 % |
c ==============================================================================
c [1mUNSATISFIABLE[0m
s UNSATISFIABLE
c _______________________________________________________________________________
c 
c restarts              : 3
c conflicts             : 257            (1691 /sec)
c decisions             : 595            (3915 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 0.151976 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): 0.66 0.91 0.89 2/54 29583
Raw data (stat): 29583 (runsolver) R 29582 26667 26666 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 407273458 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+0.1726 s]
Raw data (loadavg): 0.66 0.91 0.89 1/53 29583
Raw data (stat): 29583 (runsolver) R 29582 26667 26666 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 407273458 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: 20
Real time (s): 0.172293
CPU time (s): 0.164974
CPU user time (s): 0.151976
CPU system time (s): 0.012998
CPU usage (%): 95.752
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####